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W ATER R EFRIGERATORS
TAEevo015÷351
MAINTENANCE AND OPERATING MANUAL
38178800233
MAINTENANCE AND OPERATING MANUAL
- Index
INDEX
INDEX ...............................................................................................................................................................1
GENERAL INFORMATION ................................................................................................................................3
1.1 How to interpret the model...................................................................................................... 4
SAFETY.............................................................................................................................................................5
2.1
2.2
2.3
2.4
2.5
2.6
2.7
General .................................................................................................................................... 5
Liquids of the user circuit........................................................................................................ 5
Lifting and carriage precautions .............................................................................................. 5
Installation precautions............................................................................................................ 6
Precautions during operation................................................................................................... 6
Maintenance and repair precautions ........................................................................................ 6
Refrigerant gases ..................................................................................................................... 7
2.7.1 Refrigerant safety schedule ....................................................................................................................... 7
TECHNICAL DATA............................................................................................................................................9
3.1
Other data relative to the standard machines........................................................................... 9
3.1.1 Dimensions ................................................................................................................................................ 9
3.1.2 Characteristics of pumps and of the fans .................................................................................................. 9
DESCRIPTION .................................................................................................................................................11
4.1 Components ............................................................................................................................. 11
4.2 Cooling circuit ......................................................................................................................... 11
4.3 Compressors ............................................................................................................................ 11
4.4 Condenser ................................................................................................................................ 11
4.5 Evaporator ............................................................................................................................... 11
4.6 Tank......................................................................................................................................... 12
4.7 Pump........................................................................................................................................ 12
4.8 Fans.......................................................................................................................................... 12
4.9 Casing ...................................................................................................................................... 12
4.10 Materials in contact with the liquid to be cooled .................................................................... 13
4.11 Minimum distances from walls in the installation ambient..................................................... 13
4.12 Electrical circuit....................................................................................................................... 13
4.13 Negative ambient temperatures (not present in models for 460/3/60 power supply).............. 13
INSTALLATION ...............................................................................................................................................15
5.1
5.2
5.3
Inspection ................................................................................................................................ 15
Positioning............................................................................................................................... 15
Antifreeze protection ............................................................................................................... 15
5.3.1 Operating limits ....................................................................................................................................... 16
5.4 Hydraulic connections ............................................................................................................. 16
5.5 Expansion tank ........................................................................................................................ 17
5.6 Electrical connections.............................................................................................................. 18
START UP .......................................................................................................................................................19
ELECTRONIC BOARD ....................................................................................................................................21
7.1
Display..................................................................................................................................... 21
7.2
Function of buttons.................................................................................................................. 21
7.3
7.4
Symbols and leds on the display ............................................................................................. 22
Remote terminal ...................................................................................................................... 22
7.1.1 Display icons ........................................................................................................................................... 21
7.2.1 Function of combined buttons ................................................................................................................. 22
7.4.1 Function of buttons .................................................................................................................................. 22
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
1
2
MAINTENANCE AND OPERATING MANUAL
- Index
7.5
Displaying during an alarm ......................................................................................................22
7.5.1 Alarm icons ..............................................................................................................................................23
7.6
7.7
7.8
How to silence the buzzer ........................................................................................................23
First start up..............................................................................................................................23
Programming by keyboard .......................................................................................................23
7.8.1 Access to “Pr1” parameters (User level) ................................................................................................23
7.8.2 How to modify a parameter’s value .........................................................................................................23
7.9
7.10
7.11
7.12
Values displayed ......................................................................................................................24
Unit switching on / off .............................................................................................................24
How to put the unit in stand-by................................................................................................24
Function menu (* button) ......................................................................................................25
7.12.1
7.12.2
7.12.3
7.12.4
7.12.5
7.12.6
7.12.7
Access to Function menu ..........................................................................................................................25
Exit Function menu ..................................................................................................................................25
How to display the alarms “ALrM” .........................................................................................................25
How to reset an alarm “rSt” ....................................................................................................................25
How to display the alarm historic “ALoG” .............................................................................................25
How to reset the alarm history “ArSt” ....................................................................................................25
Displaying the operating hours of loads “C1Hr - C2Hr - PFHr” ..........................................................25
7.13 Other functions by keyboard ....................................................................................................26
7.13.1 How to display the Set Point ....................................................................................................................26
7.13.2 How to modify the Set Point .....................................................................................................................26
7.14 Compressors unloading function..............................................................................................26
7.15 Probe key..................................................................................................................................26
OTHER COMPONENTS SETTING ....................................................................................................................27
8.1
8.2
8.3
Compressor integral protection (PI).........................................................................................27
Refrigerant high and low pressure switches.............................................................................27
Compressor operation ..............................................................................................................27
8.3.1 Compressor regulation graphic in Chiller mode .....................................................................................27
8.4 Fan speed regulation.................................................................................................................28
8.5 Level sensor..............................................................................................................................29
OPERATION AND MAINTENANCE ..................................................................................................................31
9.1 Operation..................................................................................................................................31
9.2 Maintenance .............................................................................................................................31
9.3 Unit access................................................................................................................................31
9.4 Emptying the process water circuit ..........................................................................................32
9.5 Maintenance schedule ..............................................................................................................32
TROUBLE SHOOTING .....................................................................................................................................33
SETTING TABLES ...........................................................................................................................................37
11.1 Parameter setting ......................................................................................................................37
11.1.1 Thermoregulation parameters .................................................................................................................37
11.1.2 Configuration parameters ........................................................................................................................37
11.1.3 Dymanic set point parameters (NBCP1OT ENABLED FUNCTION) .....................................................38
11.1.4 Energy Saving parameters (NOT ENABLED FUNCTION) ....................................................................38
11.1.5 Compressor parameters ...........................................................................................................................38
11.1.6 Fan parameters ........................................................................................................................................38
11.1.7 Antifreeze support resistance parameters ................................................................................................38
11.1.8 Defrost parameters (NOT ENABLED FUNCTION) ................................................................................38
11.1.9 Alarm parameters .....................................................................................................................................38
11.1.10LASER parameters (NOT ENABLED FUNCTION) ................................................................................38
ALARMS ..........................................................................................................................................................39
12.1 Alarm codes and actions ..........................................................................................................39
12.2 Outlet blocking.........................................................................................................................42
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
MAINTENANCE AND OPERATING MANUAL
Chapter 1 - General Information
CHAPTER 1
GENERAL INFORMATION
The machines described in this manual are called “WATER REFRIGERATORS”.
This manual is written for those responsible for the installation, use and maintenance of the unit.
The components used are of high quality and all the projecting process, from the production to the unit checking, has been manufactured in
conformity with ISO 9001 norms.
In most applications, the liquid of the user circuit is water and the term “WATER” will be used even if the liquid of the user circuit is different
from water (e.g. a mixture of water and glycol).
Here below the term “PRESSURE” will be used to indicate the gauge pressure.
The following symbols are shown on the stickers on the unit as well as on the overall dimension drawing and refrigeration circuits in this manual.
Their meaning is the following:
Process water inlet
Process water outlet
Indications for lifting the unit
Water drainage point from the machine
Electric shock risk
Risk of burns from contact with high-temperature surfaces
Direction of the refrigerant fluid and water circuit
Direction of pump rotation (if installed)
Water filling point
Air vent
Hole for inserting bars for lifting the machine
Table 1 SYMBOLS
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
3
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MAINTENANCE AND OPERATING MANUAL
Chapter 1 - General Information
1.1
How to interpret the model
MODEL
DESCRIPTION
TAEevo XX 1
refrigerant with 1 refrigeration circuit
power indicative of the refrigeration compressor in hp
E = hermetic type compressor
A = air-cooled condenser
T = “tank”; refrigerator with storage tank.
ATTENTION
This manual provides the user, installer and maintenance technician with all the technical information required for installation, operation
and carrying out routine maintenance operations to ensure long life.
If spare parts are required, this must be original.
Requests for SPARE PARTS and for any INFORMATION concerning the unit must be sent to the distributor or to the nearest service centre,
providing the MODEL and MACHINE NUMBER shown on the machine data plate and on the first page of this manual.
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
MAINTENANCE AND OPERATING MANUAL
Chapter 2 - Safety
CHAPTER 2
SAFETY
This machinery was designed to be safe in the use for which it was planned provided that it is installed, started up and maintained in accordance
with the instructions contained in this manual.
The manual must therefore be studied by all those who want to install, use or maintain the unit.
The machine contains electrical components which operate at the line voltage, and also moving parts.
It must therefore be isolated from the electricity supply network before being opened. Maintenance operations involving work inside the machine
must be performed by skilled and adequately qualified personnel equipped with suitable protection means (active and passive, e.g. work gloves)
ton ensure work in maximum safety.
Do not allow extraneous persons (such as children) where the machine is installed.
2.1
General
When handling or maintaining the unit and all auxiliary equipment, the personnel must operate with care observing all instructions concerning
health and safety at installation site.
ATTENTION
Most accidents which occur during the operation and maintenance of the machinery are a result of failure to observe basic safety rules or
precautions.
An accident can often be avoided by recognising a situation that is potentially hazardous.
The user should make sure that all personnel concerned with operation and maintenance of the unit and all auxiliary equipment have read and
understood all warnings, cautions, prohibitions and notes written in this manual as well as on the unit.
Improper operation or maintenance of the unit and auxiliary equipment could be dangerous and result in an accident causing injury or death.
We cannot anticipate every possible circumstance which might represent a potential hazard.
The warnings in this manual are therefore not all-inclusive.
If the user employs an operating procedure, an item of equipment or a method of working which is not specifically recommended, he must ensure
that the unit and auxiliary equipment will not be damaged or made unsafe and that there is no risk to persons or property.
Any improper use of the machine will relieve the manufacturer from any liability for possible personal injury or property damage.
Arbitrary modifications made to the unit will automatically invalidate all forms of guarantee provided by the manufacturer.
2.2
Liquids of the user circuit
The liquids of the user circuit must be compatible with the materials used.
These can be water or mixtures of water and glycol, for example.
The addition of anti-corrosive chemical additives and operating in a pH range between 7 and 8 is recommended.
Even in the case of glycol mixtures, the use of appropriate chemical additives (consult the glycol supplier) is very important to protect
the refrigerator materials from possible corrosion caused by the chemical degradation to which glycol is subject.
If the liquids of the user circuit contains dangerous substances (e.g. ethylene glycol) is very important to collect any liquid which leaks
because it could cause damages to the ambient.
Furthermore, when the refrigerator is no longer used, dangerous liquids must be disposed of by firms specialised and authorised for
treating them.
Additives and glycol suppliers must guarantee compatibility with the materials. For further information refer to 4.10 “Materials in contact with
the liquid to be cooled” .
ATTENTION
If the liquids of the user circuit contains dangerous substances (e.g. ethylene glycol) is very important to collect any liquid which leaks
because it could cause damages to the ambient. Furthermore, when the refrigerator is no longer used, dangerous liquids must be disposed of
by firms specialised and authorised for treating them.
2.3
Lifting and carriage precautions
Avoid injury by using a hoist to lift heavy loads.
Check all chains, hooks, shackles and slings are in good condition and are of the correct capacity.
They must be tested and approved according to local safety regulations.
Cables, chains or ropes must never be applied directly to lifting eyes.
Always use an appropriate shackle or hook properly positioned.
Arrange lifting cables so that there are no sharp bends.
Use a spreader bar to avoid side loads on hooks, eyes and shackles.
When a load is on a hoist stay clear of the danger area beneath and around it.
Keep lifting acceleration and speed within safe limits and never leave a load hanging on a hoist for longer than is necessary. The weight values
shown in the following table were obtained with the unit empty, pump P3 and axial fans.
The manufacturer does not supply bars, belts and lifting hooks with the unit.
MODEL
015
020
031
051
081
101
121
161
201
251
301
351
Weight (kg)
127
132
200
220
331
386
405
416
553
650
740
757
Weight (lb)
280
291
440
485
729
850
892
917
1219
1433
1631
1668
Table 2 WEIGHTS
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
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MAINTENANCE AND OPERATING MANUAL
Chapter 2 - Safety
Model 015÷161
Model 201÷351
NOTE
Weight values are guideline, with the water circuit empty. The values may vary in relation to the configuration of the unit (pump type, supply
type, and ventilation type).
2.4
Installation precautions
The connections to be made are for the process water circuit. Use the electrical diagram accompanying this manual to for the connection to the
power grid.
2.5
Precautions during operation
Operation must be carried out by competent personnel under a qualified supervisor.
All the water piping must be painted or clearly marked in accordance with local safety regulations in the place of installation.
ATTENTION
Never remove or tamper with the safety devices, guards or insulation materials fitted to the unit or auxiliary equipment.
All electrical connections must comply with local codes.
The unit and auxiliary equipment must be earthen and protected by fuses against short-circuits and overloading.
When mains power is switched on, lethal voltages are present in the electrical circuits and extreme caution must be exercised whenever it is
necessary to carry out any work on the electrical system.
Do not open any electrical panels or cabinets or touch any electrical components or associated equipment while voltage is applied unless it is
necessary for measurements, tests or adjustments. Such work should be carried out only by a qualified electrician equipped with the proper tools
and wearing appropriate body protection against electrical hazards.
2.6
Maintenance and repair precautions
ATTENTION
When disposing of parts and waste material of any kind make sure that there is no pollution of any drain or natural water-course and that no
burning of waste takes place which could cause pollution of the air. Protect the environment by using only approved methods of disposal.
Keep a written record of all maintenance and repair work carried out on the unit and auxiliary equipment. The frequency and the nature of the
work required over a period can reveal adverse operating conditions which should be corrected.
ATTENTION
Use only refrigerant gas specified on the specification plate of the unit.
Make sure that all instructions concerning operation and maintenance are strictly followed and that the complete unit, with all accessories and
safety devices, is kept in good working order. The accuracy of pressure and temperature gauges must be regularly checked. They must be
renewed when acceptable tolerances are exceeded.
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
MAINTENANCE AND OPERATING MANUAL
Chapter 2 - Safety
ATTENTION
Do not weld or carry out any operation which produces heat near a system which contains oil or flammable liquids. The systems which may
contain oil or flammable liquids must be completely drained and cleaned (with steam, for example), before carrying out these operations.
The adjacent components must always be screened with non-flammable material and if the operation is to be carried out near any part of the
lubrication system, or close to a component which may contain oil, the system must first be thoroughly purged, preferably by steam cleaning.
Never use a light source with an open flame to inspect any part of the machine.
For every unit establish a suitable time schedule for cleaning operations.
ATTENTION
If replacement parts are needed use only original spares.
Avoid to damage the safety valves and other pressure relief devices.
All guards must be reinstated after carrying out repair or maintenance work.
ATTENTION
Check the direction of rotation of electric motors (the pump if installed) when starting up the unit initially and after any work on the
electrical connections or switch gear.
Do not use flammable liquid to clean any component during operation. If chlorinated hydrocarbon non-flammable fluids are used for cleaning,
safety precautions must be taken against any toxic vapours which may be released.
ATTENTION
Before removing any panels or dismantling any part of the unit, carry out the following operations:
- Isolate the unit from the main electrical power supply by disconnecting the cable from the electrical power source.
- Lock the isolator in the “OFF” position with a lock.
- Attach a warning label to the main isolator switch conveying: “WORK IN PROGRESS - DON NOT APPLY VOLTAGE”.
- Do not switch on electrical power or attempt to start the unit if a warning label is attached.
2.7
Refrigerant gases
R407C is used as refrigerant in these units. Never attempt to mix refrigerant gases. The manufacturer's instructions and local safety regulations
should always be observed when handling and storing high pressure gas cylinders.
2.7.1
Refrigerant safety schedule
R407C
Denomination:
23% Difluoromethane (R32);
25% Pentafluoroethane (R125);
52% R134a
Major dangers:
Asphyxia.
Specific dangers:
Rapid evaporation can cause freezing.
INDICATION OF THE DANGERS
FIRST AID MEASURES
General information:
Do not give anything to unconscious persons.
Inhalation:
Take the person outdoors. Use oxygen or artificial respiration if necessary. Do not
administer adrenaline or similar substances.
Contact with the eyes:
Thoroughly wash with plenty of water for at least 15 minutes and call a doctor.
Contact with the skin:
Wash immediately with plenty of water. Remove contaminated clothing immediately.
FIRE-FIGHTING MEASURES
Means of extinction:
Any means.
Specific dangers:
Pressure increase.
Specific methods:
Cool the containers with water sprays.
MEASURES IN THE EVENT OF ACCIDENTAL LEAKAGE
Individual precautions:
Evacuate personnel to safe areas. Provide adequate ventilation. Use means of personal
protection.
Environmental precautions:
Evaporates.
Cleaning methods:
Evaporates.
HANDLING AND STORAGE
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
7
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MAINTENANCE AND OPERATING MANUAL
Chapter 2 - Safety
Handling
technical measures/ precautions:
Ensure sufficient air change and/or extraction in the work areas.
recommendations for safe use:
Do not inhale vapours or aerosols.
Storage
Close properly and store in a cool, dry well-ventilated place. Store in its original
containers. Incompatible products: explosives, flammable materials, organic peroxide.
CONTROL OF EXPOSURE/INDIVIDUAL PROTECTION
Control parameters:
AEL (8-h e 12-h TWA) = 1000 ml/m3 for each of the three components.
Respiratory protection:
For rescue and maintenance work in tanks, use autonomous breathing apparatus. The
vapours are heavier than air and can cause suffocation, reducing the oxygen available for
breathing.
Protection of the eyes:
Safety goggles.
Protection of the hands:
Rubber gloves.
Hygiene measures:
Do not smoke.
PHYSICAL AND CHEMICAL PROPERTIES
Colour:
Colourless.
Odour:
Similar to ether.
Boiling point:
-43.9°C at atm. press.
Flammability point:
Non flammable.
Relative density:
1.138 kg/l at 25°C.
Solubility in water:
Negligible.
STABILITY AND REACTIVITY
Stability:
No reactivity if used with the relative instructions.
Materials to avoid:
Alkaline metal, earthy alkaline metals, granulated metals salts, Al, Zn, Be, etc. in powder.
Hazardous decomposition products:
Halogen acids, traces of carbonyl halides.
TOXICOLOGICAL INFORMATION
Acute toxicity:
(R32) LC50/inhalation/4 hours/lab. rats & gt; 760 ml/l
(R125) LC50/inhalation/4 hours/lab. rats & gt; 3480 mg/l
(R134a) ALC/inhalation/4 hours/lab. rats = 567 ml/l.
Local effects:
Concentrations substantially above the TLV can cause narcotic effects. Inhalation of
products in decomposition can lead to respiratory difficulty (pulmonary oedema).
Long-term toxicity:
Has not shown any cancerogenic, teratogenic or mutagenic effects in experiments on
animals.
ECOLOGICAL INFORMATION
Global warming potential HGWP (R11=1):
R125: 0.84 - R134a: 0.28
Ozone depletion potential ODP (R11=1):
0
CONSIDERATIONS ON DISPOSAL
Usable with reconditioning.
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
MAINTENANCE AND OPERATING MANUAL
Chapter 3 - Technical data
CHAPTER 3
TECHNICAL DATA
The main technical data are given on the machine data plate:
MODEL and CODE
They identify the size of the unit and the type of construction.
MANUAL
This is the code number of the manual.
SERIAL NUMBER
This is the construction number of the unit.
MANUFACTURING YEAR
This is the year of the final test of the unit.
VOLTAGE/PHASE/FREQUENCY
Electric alimentation characteristics.
MAX. CONSUMPTION(I max)
This is electrical current consumed by the unit during the limit working conditions.
INSTALLED POWER(P max)
It is the power absorbed by the unit during the limit working conditions.
PROTECTION
As defined by the EN 60529 European standard .
REFRIGERANT
This is the refrigerant fluid in the unit.
REFRIGERANT QUANTITY
This is the quantity of refrigerant fluid contained in the unit.
For TAEevo 015÷031 models
MAX. COOLING PRESSURE
This is the design pressure of the refrigeration circuit.
MAX. COOLING TEMPERATURE
This is the design temperature of the refrigeration circuit.
For TAEevo 051 models and upper models
MAX. COOLING PRESSURE HP SIDE
This is the design pressure of the refrigeration circuit of the high pressure side
MAX. COOLING PRESSURE LP SIDE
This is the design pressure of the refrigeration circuit of the low pressure side
USER CIRCUIT FLUID
Fluid used by the unit (normally water).
MAX. UTILIZATION PRESSURE
Max. designed pressure of the utilization circuit.
MAX. TEMPERATURE
Design temperature of the user circuit; this should not be confused with the maximum
working temperature which is established when the offer is made.
CONDENSER COOLING FLUID
Fluid the machine uses to cool the condenser.
MAX. WORKING PRESSURE
Maximum design pressure of the condenser cooling circuit.
MAX. TEMPERATURE
Maximum designed temperature of the cooling circuit of the condenser.
SOUND PRESSURE LEVEL
Sound pressure level in a free field in hemispherical irradiation conditions (open field)
at a distance of 1 m from the machine, condenser side, and at 1.2 m from the ground.
AMBIENT TEMPERATURE
Min. and max. cooling air temperature value.
WEIGHT
This is the approximate weight of the unit before packing.
Table 3 DATA
PLATE AND MEANING OF ABBREVIATIONS
ATTENTION
The performance of the unit mainly depends on the flow and temperature of the water in the user circuit and on the temperature of the
thermal exchanger fluid of the condenser. These data are defined during the offer stage.
3.1
Other data relative to the standard machines
3.1.1
Dimensions
See enclosures.
3.1.2
C h a r a c t e r i s t i c s o f p um p s a n d o f t h e f a n s
Model
015
020
031
051
081
101
60
16
60
16
115
30
115
30
140
37
255
67
(m 3/h)
(gpm)
0.3/4.8
1.1/21.1
0.5/4.8
1.1/21.1
0.7/6
1.8/26.4
1.0/6
2.6/26.4
1.8/9.6
4.4/42.3
2.3/9.6
5.7/42.3
pump head
(bar)
(PSI)
3.2/1.4
43.8/20.6
3.2/1.4
43.8/20.6
3.1/1.5
44.9/22.6
3.0/1.4
44.5/21.3
2.9/1.3
44.2/19.0
2.9/1.5
43.8/22.6
(kW)
0.55
0.55
0.75
0.75
0.9
0.9
nominal power
(460/3/60 Hz)
(kW)
0.75
0.75
0.75
0.75
0.9
0.9
water flow rate
PUMP P5
(litres)
(galUS)
nominal power
PUMP P3
water volume
water flow rate
Tank capacity
(m 3/h)
(gpm)
0.3/4.8
1.1/21.1
0.5/4.8
1.1/21.1
0.7/4.8
1.8/21.1
1.0/4.8
2.6/21.1
1.8/13
4.4/57.2
2.3/13
5.7/57.2
pump head
(bar)
(PSI)
5.4/2.9
79.4/42.1
5.4/2.9
79.4/42.1
5.4/3.1
78.9/45.4
5.3/3.2
78.3/46.6
5.2/2.8
75.8/40.6
5.1/3.1
75.7/45.8
nominal power
(kW)
1.1
1.1
1.1
1.1
2.2
2.2
nominal power
(460/3/60 Hz)
(kW)
1.5
1.5
1.5
1.5
3
3
Table 4 CHARACTERISTICS
OF STANDARD UNITS
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
9
10
MAINTENANCE AND OPERATING MANUAL
Chapter 3 - Technical data
Model
015
total air flow
(50/60 Hz)
(m /h)
(gpm)
number of fans
CENTRIFUGAL
FANS
(NOT present with
460/3/60 Hz supply)
051
081
101
1
1
1
1
2
4050
17831
3500
15410
6900
30380
6400
28178
9200
40506
16000
70445
--
3
031
1
number of fans
AXIAL FANS
020
--
1
1
1
2
available head
(Pa)
(PSI)
--
--
166
0.02
185
0.02
260
0.03
140
0.02
total air flow
(m 3/h)
(gpm)
--
--
6900
30379
6400
28178
9200
40506
13600
59878
Table 4 CHARACTERISTICS
Model
OF STANDARD UNITS
121
161
201
251
301
351
255
67
255
67
350
92
350
92
350
92
350
92
(m 3/h)
(gpm)
3.0/18
7.0/79.3
3.7/18
8.4/79.3
3.9/18
8.8/79.3
4.4/18
8.8/79.3
4.9/27
11.0/118.9
5.5/27
11.4/118.9
pump head
(bar)
(PSI)
2.8/1.6
41.5/24.2
2.8/1.7
41.4/25.1
2.8/2.0
41.4/29.8
2.8/2.0
41.4/29.8
3.3/0.9
48.8/13.3
3.2/0.8
48.7/12.3
(kW)
1.85
1.85
1.85
1.85
2.2
2.2
nominal power
(460/3/60 Hz)
(kW)
1,85
1,85
1,85
1,85
2.2
2.2
water flow rate
(m 3/h)
(gpm)
3.0/13
7.0/57.2
3.7/13
8.4/57.2
3.9/30
8.8/132.1
4.4/30
8.8/132.1
4.9/30
11.0/132.1
5.5/30
11.4/132.1
pump head
(bar)
(PSI)
5.1/3.1
75.6/45.8
5.0/3.2
75.4/47.1
5.2/1.8
76.5/27.1
5.1/1.8
76.5/27.1
5.1/1.9
67.2/27.3
5.1/1.8
76.1/26.1
nominal power
(kW)
2.2
2.2
4
4
4
4
nominal power
(460/3/60 Hz)
PUMP P5
(litres)
(galUS)
nominal power
PUMP P3
water volume
water flow rate
Tank capacity
(kW)
3
2.2
3
4
4
4
2
2
2
2
3
3
3
(m /h)
(gpm)
15000
66043
14200
62520
18200
80132
17600
77490
23700
104347
23700
104347
2
2
3
3
3
3
available head
(Pa)
(PSI)
125
0.01
138
0.2
237
0.3
245
0.3
150
0.2
150
0.2
total air flow
(m 3/h)
(gpm)
13500
59438
12780
56268
18200
80132
17600
77490
20145
88695
20145
88695
number of fans
AXIAL FANS
total air flow
(50/60 Hz)
number of fans
CENTRIFUGAL
FANS
(NOT present with
460/3/60 Hz supply)
Table 5 CHARACTERISTICS
OF STANDARD UNITS
NOTE
The values in the table may vary in relation to the model and configuration of the unit. In this case reference should be made to the data in
the offer.
NOTE
The head is the head available to the user. It is possible for the pump installed to be different from the standard. There are two numbers for
the flow rate and pressure: the first number refers to the nominal conditions while the second to the maximum conditions.
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
MAINTENANCE AND OPERATING MANUAL
Chapter 4 - Description
CHAPTER 4
DESCRIPTION
4.1
Components
The data relating to the materials refer to standard machines. In case of particular units special materials are used, so it is necessary to refer to the
data on the offer.
The machines essentially consist of the following components:
•
•
•
•
•
•
•
4.2
Refrigerant compressor
Condenser
Evaporator
Tank
Pump
Frame/outer panelling
Electronic controller
Cooling circuit
Models TAEevo have a single refrigerant circuit with one or two compressors connected in parallel (tandem).
The circuits consist of the following components:
•
•
•
•
•
refrigerant fluid used R407C;
piston hermetic compressor or scroll compressor;
fan pressure switch with on/off regulation;
pressure switches for high and low refrigerant pressure;
high pressure transducer for fan electronical regulation and for unloading (NOT present with 460/3/60 supply, centrifugal fans
and in TAEevo015÷020);
• liquid solenoid valve (with prismatic tank and plate-type evaporator);
• thermostatic throttle valve with external equalization (in models without prismatic tank present only from TAEevo031);
• dryer filter;
• liquid flow sight glass (in models without prismatic tank present only from TAEevo031);
• lamination capillary (only for TAEevo015÷020);
• refrigerant manometers (TAEevo031);
• Schrader service valves;
Consult the enclosed drawings for additional information.
4.3
Compressors
All the machines are equipped with piston or SCROLL hermetic compressors, which are distinguished for their high energy efficiency, low
vibrations and consequent silence in normal operation.
They are cooled by the aspirated gas, protected against overheating of the windings by an internal module that monitors their temperature and,
upstream, by magnetothermic circuit breakers. These components are housed in a closed, but easily accessible, compartment.
4.4
Condenser
Condensation occurs through fin-pack coils consisting of copper tubes and collectors, aluminium fins and shoulders in galvanised sheet.
4.5
Evaporator
The evaporator is a finned pack type; the water flows in contact with the finned surface and at a speed that guarantees low pressure drops, while
the refrigerant fluid flows inside the tubes.
A plate exchanger can be fitted as an alternative.
In the TAEevo models, the exchanger is protected against the formation of ice, caused by low evaporation temperatures, through an anti-freeze
function in the electronic controller. A probe monitors the temperature of the evaporator outlet water. If it is necessary to achieve a negative
ambient/water temperatures, a mixture of water and glycol must be used.
To drain the circuit, see Chapter 9.4 “Emptying the process water circuit” .
TAEevo015÷351
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12
MAINTENANCE AND OPERATING MANUAL
Chapter 4 - Description
4.6
Tank
The storage tank is cylindrical.
Alternatively a prismatic atmospheric tank can be supplied.
The tank can be protected against freezing by means of an electric heater managed by the electronic controller. A level sensor in the tank serves
to signal low water level conditions. The standard supply includes anti-condensation cladding, a drain valve and an air bleed valve. An internal
bypass between the water delivery and return connections, makes it possible to read the anti-freeze probe if the unit's process water inlet and
outlet connections are inadvertently closed. In this case the unit stops due to tripping of the antifreeze alarm and the shut-off valves must be
reopened.
The bypass serves exclusively to allow an antifreeze alarm to trip (if present) and to allow the pump to run with a reduced water flow rate
without damage. It is advisable to avoid repeated antifreeze alarm trip cycles in the foregoing conditions.
With the prismatic atmospheric tank process water
filling is performed utilising a kit comprising a semitransparent plastic container secured to the rear of the
machine. In steady-state operating conditions the
liquid level must be about half way up the container.
4.7
Pump
Centrifugal pumps are installed and it is possible to choose between 2 different types, which provide two different pressures based on
requirements (a 3 or 5-barg pump). It is also possible to have units without pump.
The tandem pump can be installed in certain models.
The management procedure is manual. The selector for pumps rotation is located inside the electrical cabinet.
For more information consult the attached diagrams.
The pump seals are made of ceramics/treated carbon/EPDM.
ATTENTION
Bleed the circuit by unscrewing the bleed cap on the pump whenever the water circuit is filled .See 5.4 “Collegamenti idraulici” .
4.8
Fans
Axial fans
The fans of axial type consist of a die-cast aluminium fan with sickle profile.
The protection rating of the fans is IP54.
The protection rating of the fans is IP44 for TAEevo015÷020.
All fans have “F” insulation class to assure the external working with all types of climates. The assembly is completed with a superior (support
to the fan) safety protection grill.
Centrifugal fans (NOT present in models with 460/3/60 supply)
Can be installed exclusively on models higher than TAEevo031.
These are double drive fans with the fanwheel coupled directly to the motor shaft and they feature ON/OFF control. The delivery port is located
on the top of the unit.
The delivery direction can be modified on models TAEevo201÷351.
4.9
Casing
The base, uprights and panels are made of galvanized carbon steel and held together by screws and/or rivets. All panels undergo a phosphor
degreasing process followed by epoxy polyester powder coating.
The frame is designed to allow easy access to all machine components.
Model
width
depth
height
TAEevo 015÷020
(mm)
(in)
560
22
1266
49.8
810
31.9
TAEevo 031÷051
(mm)
(in)
660
26
1311
51.6
1400
55.1
TAEevo 081÷161
(mm)
(in)
760
29.9
1858
73.1
1447
57
TAEevo 201÷351
(mm)
(in)
870
34.3
2240
88.2
2065
81.3
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
MAINTENANCE AND OPERATING MANUAL
Chapter 4 - Description
4.10 Materials in contact with the liquid to be cooled
There can be two different groups.
Standard refrigerators: carbon steel, copper, aluminium, zinc, brass, stainless steel and plastics
in particular:
• evaporator with copper tubes, aluminium fins and shoulders in galvanised steel;
• tank in carbon steel;
Refrigerators with non-ferrous water circuit: stainless steel (AISI 304), copper, brass and plastics
in particular:
•
•
alternatively
evaporator with tubes and fins in copper and brass shoulders;
tank in AISI 304 stainless steel;
•
external plate evaporator
•
prismatic atmospheric tank
The pump mechanical seals are made of ceramics, graphite and/or EPDM.
4.11 Minimum distances from walls in the installation ambient
See enclosures.
4.12 Electrical circuit
For the electrical connections, see Chapter 5 “Installation“, Installation, and consult the enclosed drawings.
4.13 Negative ambient temperatures (not present in models for
460/3/60 power supply)
In the presence of sub-zero ambient temperatures (-20) the unit is equipped with a system that assures perfect operation, also in the presence of
harsh temperatures.
The additional elements fitted are:
•
•
•
The pump and
electronic fans speed control;
crankcase heaters
electrical cabinet heaters
tank can be equipped with electrical heaters to prevent icing up (instead of using glycol solutions).
TAEevo015÷351
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MAINTENANCE AND OPERATING MANUAL
Chapter 4 - Description
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
MAINTENANCE AND OPERATING MANUAL
Chapter 5 - Installation
CHAPTER 5
INSTALLATION
ATTENTION
Before carrying out the installation or operating on this machine, ensure that all the personnel has read and understood the Chapter 2
“Safety“ in this manual.
5.1
Inspection
Immediately after uncrating, inspect the unit.
5.2
Positioning
1. The unit may be installed both outdoors and indoors.
2. If installed indoors, the room must be well ventilated and with a sufficient height which allows the air to be expelled by fans. In
some cases it may be necessary to install fans or extractors to limit the temperature of the room.
3. The minimum and maximum working ambient temperature are specified on the unit data plate. In extreme temperature conditions,
the protection devices may trip.
4. The machine must be positioned on any flat surface capable of supporting its weight.
5. Leave at least one metre around the unit to permit access during service operations.
6. Do not obstruct or disturb the condenser's flow of thermal exchanging air.
5.3
Antifreeze protection
Even if the minimum working ambient temperature is above 0°C it is possible for the machine - during stoppages in the cold seasons - to find
itself in an environment with a temperature below 0°C.
In these cases, if the machine is not emptied, antifreeze (ethylene glycol) must be added in the following percentages to prevent the formation of
ice:
Min. ambient temp
[°C] (°F)
Ethylene glycol
[volume%]
0 (32)
10
-5 (23)
15
-10 (14)
20
-15 (5)
30
Table 6 ADDING
ETHYLENE GLYCOL BASED ON THE AMBIENT
TEMPERATURE
Add the following anti-freeze (ethylene glycol) percentages in order to avoid freezing when operating at low water outlet temperature:
Water outlet min.
temperature [°C] (°F)
Ethylene glycol
[% in volume]
& lt; 5 (41)
10
0 (32)
15
-5 (23)
20
-10 (14)
30
Table 7 ADDITION
OF
ETHYLENE
GLYCOL ACCORDING TO THE
WATER OUTLET TEMPERATURE
ATTENTION
Carry out the level sensor calibration when the unit is activated the first time. Repeat the operation each time the composition of the process
liquid changes.
Attention:
With a higher concentration than 30% Äthylenglykol the pumps must be equipped with a Silicium-Silicium-EPDM-rotary seal to be able to guarantee a
lasting permanence.
Perhaps, higher concentrations with the standard rotary seal can lead to leaking in the pump for which the supplier takes over no guarantee.
TAEevo015÷351
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15
16
MAINTENANCE AND OPERATING MANUAL
Chapter 5 - Installation
5.3.1
Operating limits
The operating limits are decided at the time of sale. Refer to the contract data.
Minimum
Maximum
ambient air temperature
Standard version
°C /°F
-5 /23
43 /109.4(*)
ambient air temperature
(**)
°C /°F
-20/-4(***)
43/109.4(*)
evaporator inlet water
temperature
°C /°F
-5 /23(****)
35 /95
evaporator outlet water
temperature
°C /°F
-10 /14(****)
30 /86
(*) With outlet water to a temperature of 15 °C
(**) Not present in models with 460/3/60 supply.
(***) With unit equipped with condensing pressure control.
(****) For temperatures below +5°C (41°F) use antifreeze solutions.
5.4
Hydraulic connections
NOTE
All hydraulic connections must be carried out by the customer.
1. Connect the unit to the water pipelines respecting the water flow direction as indicated in the annexed overall dimension drawings.
2. Provide two cocks (one at the inlet and one at the outlet) for excluding the unit when maintaining without emptying the user water
circuit.
3. Fill the tank with water using:
• A remote discharge system. In this case it is necessary to leak manually the air from the tank by operating on the manual valve.
• If there are frequent air infiltrations into the water circuit it is advisable to install an automatic bleed valve.
4. If the machine is supplied without a pump, make sure that the pump installed by the user has the suction directly connected to the
tank outlet.
ATTENTION
If the unit is furnished without hydraulic group, it is necessary to install a pump for the evaporation water circuit.
For maintenance purposes, we recommend installing a water drainage cock in the lower part of the circuit.
Evaporator water connection size
TAEevo unit model
015÷020
031÷051
081÷161
201÷351
Evaporator water
IN/ OUT
connections
Rp 3/4”
Rp 1”
Rp 1” 1/2
Rp 2”
ATTENTION
For correct operation, we strongly recommend the installation of a water filter to be connected to the inlet pipe to avoid the entry of solid
particles that could damage the pumps. The non-observance of this prescription can cause big damages to the evaporator.
Process water inlet
Process water outlet
TAEevo015÷351
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MAINTENANCE AND OPERATING MANUAL
Chapter 5 - Installation
When filling the circuit with liquid check to ensure the absence of air bubbles and
contaminants. If the pump runs noisily or emits anomalous noise it may be necessary to
PLUG
bleed the liquid circuit in order to prime the pump.
The procedure is as follows:
• unscrew the filler/breather plug at the top of the pump
• fill the hydraulic circuit until water starts to overflow from the filled hole
• refit the plug and tighten it
Repeat the operation if the pump continues to run noisily, in such a way as to eliminate
any air that had previously remained trapped in the impeller vanes.
In the event of double pump, keep particular attention during priming the pump. It is
necessary to verify first the pump positioned on the top.
5.5
Expansion tank
If the hydraulic circuit is of closed type, it is necessary to install an expansion tank.
The expansion tank must always be connected at pump inlet.
To calculate the minimum volume of the expansion tank required for a given installation, the formula below cab be used and is valid if the
pressure is less than or equal to 0.5 bar when the pump is stopped and the maximum working pressure of the expansion tank is greater than or
equal to 4 bar.
The volume of the expansion tank V in litres is given by the formula:
V = 2 · Vt · (Ptmin - Ptmax)
where:
total volume of the circuit in litres
specific weight at the minimum temperature obtainable by water
over the year in °C (even with the plant stopped)
specific weight at the maximum temperature obtainable by water
over the year in °C (even with the plant stopped)
Vt=
Ptmin=
Ptmax=
Example of calculation:
Vt=200 litres
percentage of ethylene glycol in volume =30%
tmin =5°C from the table Ptmin=(1.045+1.041)/2 = 1.043
tmax =40°C from the table Ptmax=1.0282
V=2 · 200 · (1.043 - 1.0282)=5.92 litres
Table of specific weights P
0%
10%
20%
30%
40%
-20(-4)
Temperature [°C]
% Glycol
1,0036
1,0195
1,0353
1,0511
1,0669
-10(14)
1,0024
1,0177
1,033
1,0483
1,0635
0(32)
1,0008
1,0155
1,0303
1,045
1,0598
10(50)
0,9988
1,013
1,0272
1,0414
1,0556
20(68)
0,9964
1,0101
1,0237
1,0374
1,051
30(86)
0,9936
1,0067
1,0199
1,033
1,0461
40(104)
0,9905
1,003
1,0156
1,0282
1,0408
Table 8 SPECIFIC
WEIGHTS
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
17
18
MAINTENANCE AND OPERATING MANUAL
Chapter 5 - Installation
5.6
Electrical connections
The connection of the unit to the power supply network must be done in conformity with the laws and prescriptions in force in the installation
place.
The power supply voltage, the frequency and the phase number must be as shown on the unit data plate.
The power supply voltage must not be, also for short periods, out of the tolerances given in the wiring diagram.
Except for different indications, the frequency tolerance is +/-1% of the nominal value (+/-2% for short periods).
In the event of three-phase supply, the system must be symmetrical (equal effective voltage values and equal phase angles among consecutive
phases).
In particular, except for different indication, the max. unbalance between each phase is 2%. The unbalance is calculated as following:
Max difference of each phase from Vavg
x100
Vavg
Vavg= average of voltage phases
In the event of single-phase supply, check that there is a neutral line in the electrical installation and it is earthen in the transformer cabin (TN
system in compliance with IEC 364) or that this is done by the electricity supply company (TT system in compliance with IEC 364).
The phase conductor and the neutral wire must not be confused.
For the electrical supply:
1. connect the unit (PE terminal in the electrical panel) to the earthed system of the building
2. guarantee the automatic interruption of the power supply in the event of insulation failure (protection against indirect contacts in
compliance with IEC 364) by means of a differential device (normally with operation nominal current of 0.03 A)
3. at the beginning of the electrical supply cable must be guaranteed a protection against direct contacts with a protection degree of
IP2X or IPXXB at least
4. at the beginning of the electrical supply cable must be installed protection devices that protect against overcurrents (short circuit)
(see information in the electrical wiring)
5. use conductors which transform the max. current required to the max. operating ambient temperature, according to the selected
installation type (IEC 364-5-523) (see information in the electrical wiring)
Indications of electrical wiring:
A
B
max. size permitted for the fuse type gG.
In general, the fuses can be replaced with an automatic switch regulated by means of the unit max. absorbed current (contact the
manufacturer if necessary)
section and type of the power supply cable (if not already supplied):
•
installation: insulated conductors, multipolar cable in duct, in air or over masonry (C type in compliance with IEC 364-5-523
1983) or without no other cable in contract
• working temperature: the max. working ambient temperature of the unit
• cable type: copper conductors, PVC insulation from 70°C (if not specified) or EPR insulation from 90°C
Consult the enclosed electrical diagram for additional information.
TAEevo015÷351
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MAINTENANCE AND OPERATING MANUAL
Chapter 6 - Start up
CHAPTER 6
START UP
ATTENTION
Before starting up these units be sure that all personnel have read and understood the Chapter 2 “Safety”.
1. Check that the machine's on/off valves are open.
2. Check that the tank is completely full of water and properly vented .
3. Carry out the level sensor calibration as indicated in the 8.5 “Level sensor” paragraph
4. Check that the ambient temperature is within the limits indicated in the machine data plate.
5. It is possible to check that the pressure is about 0.5 bar on the manometer located on the back of the unit (only if the water circuit is
of the closed type).
6.Check that the main switch is in the OFF position (“0”).
7.Check that the power supply voltage is correct.
8.Power the machine by means of the supply line protection device.
9.Turn the machine main switch ON (“I”).
10.Check that the water flows across the evaporator.
' button for 5 seconds if you want to start the unit.
flashes for 5 seconds and then it remains lit.
To power-off the machine, press the ' key.
11. Press
The led
12. In three-phase units, check that compressor works correctly (it must not be noisy or overheated) and check that the fans and the
pump (if installed) rotation direction is correct.
If necessary invert two phases of supply.
13. Check that the pressure difference between the value read on the manometer located on the machine control panel with the pump in
motion and the value read with the pump stopped is higher than the available pressure with the pump's maximum flow capacity. If
this difference is lower, it means that the water flow capacity is higher than the maximum value allowed. In order not to damage the
pump, it is necessary to increase the pressure drop of the hydraulic circuit by, for example, partially closing a pump discharge cock.
14. Models with centrifugal fans:
Check that the output of the centrifugal fans is correctly ducted and that the pressure drop of the ducting system is about equal to the
available head. If the pressure drops are:
- greater this means that there is a reduction in the flow of cooling air with a consequent drop in machine performance and the
possibility of protection devices tripping even at relatively low ambient temperatures;
- lower this means that the air flow may be too high for the fan and this could be dangerous for the centrifugal fan motor.
15. If with the first start-up, there is a high ambient temperature and the temperature of the water in the hydraulic circuit is much higher
than the working value (e.g. 25-30°C) this means that the refrigerator starts up overloaded with the consequence of possible tripping
of the protection devices. To reduce this overload, a refrigerator outlet valve can be gradually (but not totally!) closed to reduce the
flow of water passing through it. Open the valve as the water temperature in the hydraulic circuit reaches the working value.
16. The machine is now ready for operating.
If the thermal load is lower than that produced by the unit, the water temperature drops until it reaches the set point (ST01
parameter) set following the instruction of chapter Electronic Board.
When SET-POINT value has been reached, the electronic control controlling the water inlet temperature stops the compressor. The
water pump, on the other hand, is always in motion.
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
19
20
MAINTENANCE AND OPERATING MANUAL
Chapter 6 - Start up
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
MAINTENANCE AND OPERATING MANUAL
Chapter 7 - Electronic Board
CHAPTER 7
ELECTRONIC BOARD
7.1
Display
The display is divided in 3 zones.
It displays the temperature of temperature regulation probe.
NOTE
The displaying depends on the setting of parameter CF36 (see chapter
7.9 “ Values displayed” ).
Top-left zone
It displays the operating setpoint, OFF with stand-by unit.
NOTE
The displaying depends on the setting of parameter CF42 (see chapter
7.9 “ Values displayed” ).
Bottom-left zone
Signalling icons.
Right zone
7.1.1
Display icons
ICON
MEANING
ICON
Celsius degrees (If displayed)
Fahrenheit degrees (If not displayed)
Bar/Psi
P
7.2
Compressor 1
Compressor 2
Stand-by unit
General alarm
$
D
B
MEANING
Low pressure alarm
Antifreeze resistance
Pump on
Flow meter alarm
Time to defrost starting
Fans on
Indication for Function Menu entering
High pressure alarm
Function of buttons
BUTTON
)
FUNCTION
It selects water temperature and ambient air temperatures in the top part of the display.
During programming phase it scrolls the parameter’s codes or increases their values.
If pressed for 5 seconds, it allows to switch on or off the unit in chiller modality.
&
It selects water temperature in the top part of the display. During programming phase it
scrolls the parameter’s codes or decreases their values.
-
If pressed for 5 seconds, it allows to display or modify the set point.
During programming phase it selects a parameter of confirms a value.
*
It allows to enter Function Menu.
TAEevo015÷351
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21
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MAINTENANCE AND OPERATING MANUAL
Chapter 7 - Electronic Board
7.2.1
F u n c t i o n o f c om b i n e d b ut t o n s
BUTTONS
FUNCTION
&
+
-
To enter programming phase (pressed for 5 sec).
)
+
-
To exit programming phase.
)
+
-
If pressed for more than 5 seconds they allow to start a manual defrosting cycle (function not present).
7.3
Symbols and leds on the display
LED
LED STATUS
4
MEANING
LED
MEANING
Not enabled
Steady
5
Flashing
5
Not enabled
Unit on in chiller modality
5
Not enabled
Clock adjustment
Programming phase (if flashes
5
LED STATUS
together with
led)
Not enabled
7.4
Remote terminal
7.4.1
F u n c t i o n o f b ut t o n s
BUTTON
FUNCTION
0
It allows to enter Function Menu.
2
If pressed for 5 sec., it allows to display or modify the set point.
During programming phase it selects a parameter or confirms a value.
1
It selects water temperature in the top part of the display.
During programming phase it scrolls the parameter’s codes or increases their
values.
3
It selects water temperature in the top part of the display.
During programming phase it scrolls the parameter’s codes or decreases their
values.
/
If pressed for 5 seconds it allows to switch on or off the unit.
.
Not enabled
If there is no communication between the unit and the remote terminal, in the top part of the display it appears the message “ OP-” (no link).
NOTE
The displaying depends on the setting of parameter CF43-CF44 (see chapter 7.9 “ Values
7.5
displayed”).
Displaying during an alarm
During normal operation (no alarm), when an alarm occurs the alarm
code and the appropriate icon flash in the bottom part of the display,
alternated to the temperature / pressure.
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
MAINTENANCE AND OPERATING MANUAL
Chapter 7 - Electronic Board
7.5.1
Alarm icons
There are four icons for alarm signalling:
7.6
General alarm
High pressure alarm
Low pressure alarm
Flow meter alarm
How to silence the buzzer
Automatic silencing: it happens when the cause of the alarm has been eliminated.
Manual silencing: press and release one of the four buttons; the buzzer silences even if the alarm condition persists.
7.7
First start up
At the first start up of the unit in the bottom part of the display it could appear the message “ SU$ ” alternated with the temperature. It indicates
that it is necessary to regulate the clock.
If the probes used to control the unit are not connected or are damaged, the appropriate alarm will be displayed.
However, it is possible to regulate the clock or to programme the unit.
7.8
Programming by keyboard
The parameters of electronic control are divided in two groups and in two levels:
1. USER (Pr1);
2. SERVICE (Pr2).
USER level allows to access user parameters, SERVICE level allows to access the parameters of unit configuration (it is protected by a
password).
The parameter’s groups, indicated by some “Label”, are divided as follows:
LABEL
ALL
ACTION
It displays all parameters
ST
CF
It displays Configuration parameters
Sd
It displays only the parameters of the Dynamic Setpoint (NOT ENABLED FUNCTION)
ES
It displays only the parameters of the Energy Saving (NOT ENABLED FUNCTION)
CO
It displays Compressor parameters
FA
It displays Fan parameters
Ar
It displays only the parameters of the Antifreeze Resistance
dF
It displays only the parameters of the Defrosting (NOT ENABLED FUNCTION)
AL
It displays only the Alarm parameters
LS
7.8.1
It displays Thermoregulation parameters
It displays only the LASER parameters (NOT ENABLED FUNCTION)
Access to “Pr1” parameters (User level)
To enter the menu of “Pr1” parameters which can be access by the user:
1. Press for some seconds
- + ' buttons (5 and start flashing), in the top of the display appears “ALL”, the first group of
parameters.
( and ' buttons.
After selecting a group, press - button: if the selected group is part of the selected menu or any parameter of this group has been
2. Select the various groups using
3.
moved in this menu, in the bottom of the display it appears the “Label” and the code of the group’s first parameter present in “Pr1”,
its value appears in the top of the display.
It will not be possible to enter a parameter’s group which is not part of this menu.
4. It is possible to scroll or modify the parameters contained in the group.
7.8.2
How to modify a parameter’s value
1. Enter the programming procedure.
2. Select the desired parameter.
- button to enable the value’s adjustment.
Modify the value by means of ( and ' buttons.
Press - to store the new value and to pass to the code of the following parameter.
3. Press
4.
5.
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
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MAINTENANCE AND OPERATING MANUAL
Chapter 7 - Electronic Board
6. To exit the procedure: Press
- + ( when a parameter is displayed, or wait (about 240 seconds) without pressing any button.
NOTE
The new value is stored also when the programming procedure is terminated for “time out”, without pressing
- button.
ATTENTION
You can modify the parameter of the CF (configuration parameters) family only when the unit is in stand by.
7.9
Values displayed
The values visualized on the display change according to the configuration of parameters CF36 for the top part and CF42 for the bottom part.
For remote terminal it changes according to the configuration of parameters CF43 for the top part and CF44 for the bottom part.
Parameter CF36/CF43 = 0
In the top part of the display it appears the probe BEWOT
Parameter CF36/CF43 = 1
In the top part of the display it appears the probe BTWOT
Parameter CF36/CF43 = 2
No value will appear in the top part of the display
Parameter CF36/CF43 = 3
In the top part of the display it appears the probe BAT1
Parameter CF36/CF43 = 4
In the top part of the display it appears the chiller set; off when unit in stand-by
Parameter CF36/CF43 = 5
In the top part of the display it appears “OnC” when the unit is operating; off when unit in stand-by
Parameter CF36/CF43 = 6
In the top part of the display it appears the LASER set (FUNCTION NOT ENABLED)
Parameter CF36/CF43 = 7
No value will appear in the top part of the display
Parameter CF36/CF43 = 8
In the top part of the display it appears the operating differential
Parameter CF42/CF44 = 0
In the bottom part of the display it appears the probe BEWOT
Parameter CF42/CF44 = 1
In the bottom part of the display it appears the probe BTWOT
Parameter CF42/CF44 = 2
In the bottom part of the display it appears the probe PCP1
Parameter CF42/CF44 = 3
In the bottom part of the display it appears the probe BAT1
Parameter CF42/CF44 = 4
In the bottom part of the display it appears the chiller set; off when unit in stand-by
Parameter CF42/CF44 = 5
In the bottom part of the display it appears “OnC” when the unit is operating
Parameter CF42/CF44 = 6
In the bottom part of the display it appears the LASER set (FUNCTION NOT ENABLED)
Parameter CF42/CF44 = 7
No value will appear in the bottom part of the display
Parameter CF42/CF44 = 8
In the bottom part of the display it appears the operating differential
If the probe BTWOT has been selected has default, every time you press
( for 30 sec the top display visualizes the BEWOT probe, in the
bottom part of the display it will appear the “Label” Pb2 than the default value will return to be displayed.
If the probe BEWOT has been selected has default, every time you press
( for 30 sec the top display visualizes the BTWOT probe, in the
bottom part of the display it will appear the “Label” Pb1 than the default value will return to be displayed.
7.10 Unit switching on / off
' button for 5 seconds allows to switch on or off the unit.
The led of icon flashes for 5 seconds then it remains lit.
The pressure of
7.11 How to put the unit in stand-by
Stand-by modality is obtained every time the unit is switched off.
It is indicated by the symbol
P lit.
Also in stand-by modality the controller can:
1. Display the measured values
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
MAINTENANCE AND OPERATING MANUAL
Chapter 7 - Electronic Board
2. Manage the alarms by displaying and signalling.
7.12 Function menu (* button)
The access to Function Menu allows to:
1. Display and reset the alarms (see 7.12.3 “How to display the alarms “ALrM””).
Reset the alarms (see “How to reset an alarm “rSt””).
2. Display the alarm history (see 7.12.5 “How to display the alarm historic “ALoG””).
3. Upload the parameters from the unit to the key.
4. Display the operating hours of the controlled loads.
Reset the operating hours of the controlled loads.
7.12.1 Access to Function menu
Press and release
The icon “
* button (menu).
” will appear.
7.12.2 Exit Function menu
Press and release
The icon “
* button or wait for time out (30 seconds).
” disappears.
7.12.3 How to display the alarms “ALrM”
* to enter Function menu.
( or ' to select “ALrM” function.
Press and release - button.
Press ( or ' to scroll all alarms.
To exit press * or wait for time out (30 seconds).
1. Press
2. Press
3.
4.
5.
7.12.4 How to reset an alarm “rSt”
1. Press
* to enter Function menu.
2. Select “ALrM” function
3. Press
- , in the bottom of the display it appears the alarm code.
4. If the alarm can be reset in the top of the display it appears the Label “rSt”, it the alarm can not be reset it appears the Label “NO”.
( or ' button to scroll all the alarms.
When the Label “rSt” is displayed, press - to reset the alarm and go to the following one.
To exit press * button or wait for time out (30 seconds).
5. Use
6.
7.
7.12.5 How to display the alarm historic “ALoG”
* button to enter Function menu.
( or ' button to select the function “ALoG”.
Press - until the Label with the alarm code will appear in the bottom of the display, and the Label “n°” with a progressive number
1. Press
2. Use
3.
will appear in the top of the display.
4. Using
( or ' button scroll all the alarms.
5. To exit “ALoG” function and to return to normal displaying, press
* button or wait for time out (30 seconds).
The memory contains until 50 alarms, a further alarm will cancel from the memory the oldest one (the displaying is in increasing order, from the
oldest one to the most recent one).
7.12.6 How to reset the alarm history “ArSt”
1. Enter Function menu.
2. Select “ALoG” function in the bottom of the display.
3. Press
- button.
4. Inside “ALoG” function, using
( or ' button, select the function “ArSt” in the bottom of the display and “PAS” in the top of
the display.
5. Press
- : the password is required. In the bottom of the display it appears “PAS”, “0” flashes in the top of the display.
6. Insert the password for resetting.
7. If the password is correct the Label “ArSt” flashes for 5 seconds to confirm the resetting.
After resetting the unit returns to normal displaying.
7 . 1 2 . 7 D i s p l a y i n g t he o p e r a t i n g h o u r s o f l o a d s “ C 1 H r - C 2 H r - P F H r ”
1. Press
* button to enter Function menu.
TAEevo015÷351
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MAINTENANCE AND OPERATING MANUAL
Chapter 7 - Electronic Board
2. Press
( or ' button until the Label of a single load appears in the bottom of the display: C1Hr (operating hours of compressor
1), C2Hr (operating hours of compressor 2), PFHr (operating hours of water pump and of outlet fan).
The operating hours will appear in the top of the display.
3. The icon
will be lit.
7 .1 2. 7.4 Re set of t h e lo ad o p er at in g h ou r s
1. Press
2. Press
* button to enter Function menu.
( or ' button until the Label of a single load appears in the bottom of the display (C1Hr, C2Hr only 201÷351 units,
PFHr) and the operating hours appear in the top of the display.
- button for 3 seconds: in the top of the display it will appear “0”. It indicates that the reset has happened.
To exit Function menu, press * button or wait for time out (15 seconds).
3. Press
4.
5. For the other loads repeat the operations from point 2. to point 4.
7.13 Other functions by keyboard
7.13.1 How to display the Set Point
Press and release
- button.
In the bottom part of the display it appears SetC (chiller set).
7.13.2 How to modify the Set Point
1. Press
- button for 5 seconds at least.
2. The set point will flash.
( or ' button to modify the set point value.
To store the new set point value press - button or wait for time out to exit programming procedure.
3. Use
4.
7.14 Compressors unloading function
This procedure is necessary when sudden peaks in cooling demand occur, for instance if the machine is restarted after a long period of inactivity.
Under these conditions the evaporator inlet water temperature might be so high as to require a cooling delivery in excess of system capacity.
The consequent system overload would require the start-up of all the compressors at once, which would be forced to operate in near-limit
conditions.
The overburdened compressors would thus be subject to dangerous overheating which would cause the activation of the thermal protections, or
the pressure of the refrigerant gas could reach alarm levels which would cause the machine to shut down.
This function enables the machine to run (through the switch-off or capacity step operation of the compressors) even when the temperature of the
water at the evaporator’s inlet is high (summer start-up with hot water accumulation), preventing the possible triggering of high pressure alarms.
It is not present in one compressor units.
The following messages will flash on the display:
AEUM= evaporator unloading function
ACUM= condensation unloading function
7.15 Probe key
In this chapter are indicated the probes BEWOT, BTWOT, BCP1 and BAT1, for their positioning consult the refrigerant drawing.
Their description is indicated in the following table:
Name in the manual
Borne name
Description
-BEWOT
PB1
EVAPORATOR WATER OUTLET TEMPERATURE PROBE
-BTWOT
PB2
TANK WATER OUTLET TEMPERATURE PROBE
-BCP1
PB3
CONDENSING PRESSURE TRANSDUCER (only with electronic regulation)
-BAT1
PB4
AMBIENT AIR TEMPERATURE PROBE (Only with antifreeze protection
function)
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
MAINTENANCE AND OPERATING MANUAL
Chapter 8 - Other components setting
CHAPTER 8
OTHER COMPONENTS SETTING
8.1
Compressor integral protection (PI)
For each compressor, this protection consists of three or six thermistor probes, each inserted in the winding of a motor phase; they are connected
in series and, depending on the model, the terminals can be external. This system ensures complete protection against most of the problems
which can give rise to burning of the windings. When it trips, it is necessary to find and eliminate the cause; then you can start the machine again
by pressing ON-OFF button.
8.2
Refrigerant high and low pressure switches
The units are fitted with the following pressure switches:
1. low pressure switch (LP)
This monitors refrigerant compressor suction pressure and will trip to avoid that values dangerous for compressor normal operation
are reached. It is of an “automatic reset” type. The alarm A02 (see chapter " 12.1 Alarm codes and actions " ), produced by this
pressure switch tripping, can have a delay time after the compressor starting to avoid simple intake pressure fluctuations or false
alarms interfere with the unit normal operation. After the time set, the pressure switch tripping will be detected by the electronic
board which will display the alarm signal A02 (see chapter " 12.1 Alarm codes and actions " ) band will stop the compressor/s while
the pump (if it is installed) will continue to operate. After the alarm tripping, if the compressor intake pressure increases and exceeds
the pressure switch tripping value it will restart. It will be possible to start up the unit again following the alarm reset procedure
described in Chapter 7 “Electronic
Board” . If the cause of the pressure switch tripping has not removed this cycle will repeat
continuously.
2. high pressure switch (HP)
This monitors the refrigerant compressor discharge pressure and prevents it increases to levels dangerous for compressor working
and for people safety. It is of an “automatic reset” type. Its tripping is detected by the electronic board which will open the
compressor power supply circuit and will display the alarm signal A01 (see chapter " 12.1 Alarm codes and actions " ).
When the compressor outlet pressure drops below the reset point it is reset.
It will be possible to start up the unit again following the alarm reset procedure described in Chapter 7 “ Electronic
Board” .
If the cause of the pressure switch tripping has not removed this cycle will repeat continuously.
The pressure switches LP and HP are screwed to the refrigerant circuit piping with SCHRAEDER valves (with needle) which prevent leakage
during replacement.
The TRIP and RESET values of the pressure switches depend upon the refrigerant gas used and are listed in the table below:
Pressure switch
HP
LP
8.3
Refrigerant
R407C
TRIP
RESET
bar
PSI
°C
°F
bar
PSI
°C
°F
27.2
394.5
63.4
146.1
20.5
297.3
51.5
124.7
1.7
24.6
-17.3
0.9
2.7
39.1
-8.8
16.2
Compressor operation
The thermoregulation used is of proportional type. After fixing the temperature and differential values, the compressor will start when the value
measured will exceed the sum of temperature + differential. It will stop when the value will be lower than the temperature - differential. The
same logic will be applied also in two compressor units.
8.3.1
Compressor regulation graphic in Chiller mode
With 1 compressor
With 2 compressors
ST09 = 2
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
27
28
MAINTENANCE AND OPERATING MANUAL
Chapter 8 - Other components setting
8.4
Fan speed regulation
The fan speed regulation can be carried out by means of a pressure switch (FP) in ON/OFF modality or by means of a pressure transducer (speed
regulator).
1. Fan pressure switch (FP)
In these units a pressure switch detects the refrigerant compressor outlet pressure and controls the fan operation powering them on or
off.
The pressure switch FP is screwed to the refrigerant circuit piping with SCHRAEDER valves (with needle) which prevent leakage
during replacement.
The TRIP and RESET values of the pressure switch depend upon the refrigerant gas used and are listed in the table below:
Axial fans
Pressure switch
Refrigerant
Axial fans
FP
TRIP
RESET
PSI
°C
°F
bar
PSI
°C
°F
18
R407C
bar
261
46.4
115.5
14
203
37.0
98.6
Centrifugal fans (NOT present in models with 460/3/60 supply)
Pressure switch
Refrigerant
TRIP
RESET
PSI
°C
°F
bar
PSI
°C
°F
R407C
18
261
46.4
115.5
14
203
37.0
98.6
R407C
16.3
236.4
42.6
108.7
12.5
181.2
32.9
91.2
R407C
Centrifugal fans
TAEevo 031÷051
bar
18
261
46.4
115.5
14
203.0
37.0
98.6
FP
Centrifugal fans
TAEevo 081÷351
FP1
Centrifugal fans
TAEevo 081÷351
FP2
TAEevo 201÷351
TAEevo 051÷161
FP1
FP2
FP1
FP2
ELECTRICAL
BOARD
SIDE
ELECTRICAL
BOARD
SIDE
2. Speed regulator (NOT present in models with 460/3/60 Hz supply, with centrifugal fans and in TAEevo 015÷020)
The unit is furnished with a speed regulator of fan rotation, which operates to maintain the condensing pressure within a pre-fixed
value.
These units are furnished with a pressure transducer positioned on the refrigerant compressor outlet pipeline. It commutates the
measured pressure value into an electric signal, sent to the speed regulator. For example, if the temperature of the air sent to the
condenser decreases, the pressure transducer will measure a decreasing of the condensing pressure. This pressure decreasing is sent
to the speed regulator which will reduce the fan speed and consequently, the condenser air flow will be reduced. Analogously, when
the air temperature to the condenser and the condensing pressure increase, the regulator will increase continuously the fan speed to
increase the air flow through the condenser.
The following graphic shows the progress of the fan rotation speed according to the condensing pressure changings.
% of rotation speed
Vmax
Vmin
0%
P min
P max
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
condensing
pressure [bar g]
MAINTENANCE AND OPERATING MANUAL
Chapter 8 - Other components setting
8.5
Level sensor
The level sensor indicates the absence of process water inside the tank. An alarm, with relative blocking of the unit, appears on the control
display. When the composition of the process liquid changes, for example, by addition of glycol, the sensor must be calibrated again.
Calibration of the level sensor
The fluid used by the producer for calibrating the machine may differ from that of the final user. For this purpose, the sensor calibration
procedure must be performed in the first start-up phase, and every time the composition of the process liquid changes.
The procedure must be carried out by expert personnel trained for operating on powered equipment.
Attention: the procedure must be carried out with the panel open, in the presence of line voltage.
ATTENTION
Take all the necessary precautionary measures to avoid accidental contact with powered elements.
ATTENTION
The voltage values inside the electric panel can be lethal for humans.
The procedure must be carried out with the tank
filled. The sensor must be immersed completely
in the liquid. Press button (A) on the front panel
for 2 seconds. LED (B) switches off; indicating
the calibration has been done successfully.
A
B
NOTE
The green LED flashes (frequency 2”) to indicate an incorrect reading. Repeat the procedure.
ATTENTION
The level sensor is calibrated in the factory testing phase for operating with chilled water free of ethylene glycol.
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
29
30
MAINTENANCE AND OPERATING MANUAL
Chapter 8 - Other components setting
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
MAINTENANCE AND OPERATING MANUAL
Chapter 9 - Operation and maintenance
CHAPTER 9
OPERATION AND MAINTENANCE
9.1
Operation
The machine operates in completely automatic mode.
There is not necessary to turn it off when there is no thermal load as it turns off automatically when the preset water outlet temperature has been
reached.
9.2
Maintenance
ATTENTION
Before proceeding with the installation or the maintenance of these units be sure that all personnel concerned have read and understood the
Chapter 2 “Safety“.
9.3
Unit access
ATTENTION
Everytime the panels must be removed the unit must be switched off and disconnected from power supply.
To access the components of the refrigerant circuit use an appropriate key furnished with the unit and operate on the closing bolts of the front
panel (A).
The access to the evaporator and to the components of the hydraulic circuit can be carried out by unscrewing, by a screwdriver, the screws fixing
the panel (B).
To access the components of the electrical circuit remove the front panel (C).
For models TAEevo201 and upper
To access the components of the refrigerant circuit operate on the closing bolts of the panel (A). Furthermore, it is possible to access the
components of the refrigerant circuit removing the side panels (B-D). The access to the evaporator and to the components of the hydraulic circuit
can be carried out removing the back panel (F) or the side panels (D), (E), (G) or (H).
TAEevo 015÷020
C
A
B
TAEevo 051÷161
TAEevo 201÷351
F
A
TAEevo 201÷351
C
H
B
C
F
A
B
E D
D
G
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
31
MAINTENANCE AND OPERATING MANUAL
Chapter 9 - Operation and maintenance
9.4
Emptying the process water circuit
Use the cock installed on the unit lower side if the storage tank need to be emptied for maintenance purposes (in models fitted with a hydraulic
unit).
ATTENTION
The water circuit must be emptied when a unit that has no heating elements or anti-freeze liquid is to be left inactive for a certain period of
time in an environment where the temperature may fall low enough to freeze the water in the evaporator (with the risk of breaking the
evaporator).
Check for any alarm signals.
x
Check that the water outlet temperature is within the envisaged range.
1 year
OPERATION
6 months
Maintenance schedule
1 month
9.5
1 day
32
x
Check that the water inlet temperature is in accordance with the value used for selecting the unit.
x
In units with hydraulic group, check that the pressure in the tank (with pump stopped, if present) is at least
0.5 bar with the circuit closed.
x
In units with hydraulic group, check that the difference between the discharge and the suction pressure of
the pump (measured on the manometer with the pump stopped) is within expected limits and, in particular,
that it is not lower than the value corresponding to the maximum flow capacity.
x
Clean the water filter.
We recommend to clean the filter after a week from the unit starting.
x
Check that the liquid indicator (if present) is full or with a small stream of bubbles when the compressor is
running.
x
Check that the unit current absorption is within the values on the data plate.
x
Carry out visual inspection of refrigerant circuit, looking out for any deterioration of the piping or any traces
of oil which might indicate a refrigerant leak.
x
Check the condition and security of piping connections.
x
Check the condition and security of electrical connections.
x
Using a spanner, check that the connections between the compressor inlet and outlet pipelines have not
slackened.
x
Check that the ambient air temperature is within the unit capacities.
Check that the environment is well ventilated.
Check that fan is automatically switched on .
Thoroughly clean the fins of the condenser with soft brush and/or jet of clean compressed air.
Check that the grilles of the unit are free from dirt and any other obstructions.
Clean condenser fins with a mild detergent.
ATTENTION
- This plan is based on an average working situation.
- In some installations it may be necessary to increase the frequency of maintenance.
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
x
x
x
MAINTENANCE AND OPERATING MANUAL
Chapter 10 - Trouble shooting
CHAPTER 10
TROUBLE SHOOTING
PROBLEM
CAUSE
A1
A
Tank water outlet
temperature BTWOT
higher than the expected
value.
SYMPTOM
A1.1
Thermal load too high.
A2
Temperature BTWOT
greater than expected
value.
A2.1
Ambient temperature too
high.
A3
See A1.1
A3.1
Condenser fins are dirty.
A4
See A1.1
Get a refrigerator technician to
check for leaks and eliminate
• See A1.1 ;
them.
• evaporating pressure too
Fill the plant.
low;
• a lot of bubbles in the liquid
indicator.
A6.1
Compressor protection
trips.
B1
• The head and the body of
the compressor are very
hot;
• the compressor stops and
try to start up again after
few seconds.
B1.1
Water flow too high.
Wrong working of the
pump (high flow, low
discharge head, high
absorption).
B2
• Possible increase in the
outlet temperature BTWOT
(see A1.1);
• with pump installed on the
machine: pressure
difference, read on the
machine pressure gauge,
too low with pump stopped
and pump running;
• possible tripping of pump
thermal protection.
B2.1
See point C.
B3
High water temperature
difference between
input and outlet.
C1.1
The filter upstream from
the unit is obstructed, if
installed.
Alarm displayed:
A08
C2
• Water does not flow.
Pressure difference
between inlet and outlet
lower than 25mbar.
• Alarm displayed: A08.
• main alarm relay tripped.
C2.1
The pump is defective or
rotate in the wrong
direction. (three-phases
supply).
C3
• See C1.1 ;
• main alarm relay tripped.
C3.1
Water inlet-outlet inverted
(units without hydraulic
kit).
Reduce water flow to within
the preset limits, for example
by closing partially a pump
outlet cock.
Reset the pump thermal
protection and check the
electrical absorption.
See point C.
B3.1
C1
Water differential pressure
switch FLOW alarm trips.
Get a refrigerator technician to
check for leaks and eliminate
them.
Fill the plant.
See point C.
Evaporator obstructed
because of dirt transported
by the utilization water.
C
Free the front surface of the
condenser.
A5.1
A6
Low pressure drop (water
pressure) at pump outlet.
Clean the condenser fins.
A4.1
Lack of refrigerant in the
plant.
B
In the event of installation in a
closed place, if it is possible,
increase the change air flow
into the installation location, to
restore the ambient
temperature to within the
preset limits.
See A1.1
Front surface of the
condenser obstructed.
A5
REMEDY
Restore the thermal load to
within the preset limits.
• See C1.1 ;
• main alarm relay tripped.
Depending on the type of dirt:
• clean the evaporator by
running a detergent
solution which is not
aggressive for steel,
aluminium and copper;
• run a high water flow
against the stream.
Install a filter upstream from
the unit.
Clean the upstream filter, if
installed.
Follow the alarm reset
procedure to star up the unit
again (chapter Electronic
Board).
Check the pump electrical
supply and, if it is necessary,
invert the two phases.
Follow the alarm reset
procedure to star up the unit
again (chapter Electronic
Board).
Invert the water inlet-outlet.
Follow the alarm reset
procedure to star up the unit
again (chapter Electronic
Board).
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
33
34
MAINTENANCE AND OPERATING MANUAL
Chapter 10 - Trouble shooting
PROBLEM
D
CAUSE
D1
High pressure switch
tripped (HP)
SYMPTOM
REMEDY
D1.1
The fan doesn’t work.
Alarm displayed:
A01
Repair or replace the fan.
Verify the eventual heat
• Refrigerant compressor
protection of the fan/s.
stops;
Follow the alarm reset
• the indication A01 appears procedure to star up the unit
on the display alternated to again (chapter Electronic
BTWOT value;
Board).
• main alarm relay tripped;
Check the fan speed regulation
system.
• the led of icon
lights
up.
D2
D2.1
Ambient air temperature
too high.
• Air ambient temperature
higher than maximum
permitted value;
• see D1.1
D3
D3.1
Recirculation of warm air
due to incorrect
installation location.
• Condenser thermal
exchanging air temperature
higher than the permitted
value;
• see D1.1
D4.1
D4
See A3
See A4
D6
E
E1
Low pressure switch
tripped (LP)
• Water outlet temperature
too high;
• refrigerant compressor
stops;
• main alarm relay tripped.
Call a qualified refrigeration
engineer to check for leaks
• Refrigerant compressor
and replenish refrigerant
stops;
charge.
• the indication A02 appears
on the display alternated to
BTWOT value;
• main alarm relay tripped.
• the led of icon
up.
E2
F1
See E1.1 .
Clean or replace the water
inlet filter, if installed.
F1.1
Thermal load too high
combined with a shortage
of refrigerant (also see
A5).
Alarm displayed:
A09 or A10
lights
E2.1
The filter upstream from
the unit is dirty, if
installed.
Compressor protection
trips
If possible, reduce the thermal
load to within the design
limits.
Follow the alarm reset
procedure to star up the unit
again (chapter Electronic
Board).
E1.1
Lack of refrigerant (see
also A5 ).
Alarm displayed:
A02
F
Clean the front surface of the
condenser.
Follow the alarm reset
procedure to star up the unit
again (chapter Electronic
Board).
See D1.1
D6.1
Thermal load too high.
Change the position of the unit
or the position of any adjacent
obstructions to avoid
recirculation.
Follow the alarm reset
procedure to star up the unit
again (chapter Electronic
Board).
Clean the condenser fins.
Follow the alarm reset
procedure to star up the unit
again (chapter Electronic
Board).
See D1.1
D5.1
D5
In the event of installation in a
closed place, reduce the
ambient temperature to within
design limits, for example by
increasing local ventilation.
Follow the alarm reset
procedure to star up the unit
again (chapter Electronic
Board).
Call a qualified refrigeration
engineer to check for leaks
• The head and the body of
and replenish refrigerant
the compressor are very
charge.
hot;
• the compressor stops and
tries to restart after a short
period (even a few
seconds);
• compressor thermal
protection trips;
• the indication A09 or A10
appears on the display;
• the led of general alarm
icon
F2
F2.1
The rotation direction of
scroll compressor is wrong
(only three-phase units).
lights up.
Invert two phases of the power
supply.
The refrigerant fluid is
not compressed and the
unit doesn’t cool.
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
MAINTENANCE AND OPERATING MANUAL
Chapter 10 - Trouble shooting
PROBLEM
G
CAUSE
G1
Digital display and all LEDs
off although P1 main
switch On (“I”).
SYMPTOM
G1.1
Auxiliary circuit fuse
tripping.
G2
Measuring with a tester
the voltage at the
transformer secondary
winding connector,
there will be not tension
survey.
G2.1
Abnormal power
consumption by one or
more of the control board
components.
H
H1
Alarm displayed:
P1, P2, P3, P4
I
H1.1
Probe BEWOT, BTWOT,
BAT1 damaged.
I1
Alarm displayed:
A04
Despite presence of
power at the connectors
of the control board, the
display and all LEDs
remain unlit.
• See problem;
• main alarm relay tripped.
I1.1
Low water outlet
temperature.
The value fixed by the
parameter is lower than
the one measured by the
probe.
• See problem;
• the compressor stops and
restarts;
• main alarm relay tripped.
• the led of general alarm
icon
I2
J
J1
Alarm displayed:
A11
pump thermal protection.
J2
J3
K
K1
Alarm
ACF1,ACF2,ACF3,
ACF4,ACF5
L
• See problem;
• main alarm relay tripped;
• the refrigerant compressor
and pump stop.
• See problem;
• main alarm relay tripped;
• the refrigerant compressor
and pump stop;
• the current absorbed by
the pump is greater than
the nominal rating;
• the pump may be noisy.
K1.1
Configuration error.
L1
Alarm
EE
• See problem;
• main alarm relay tripped;
• the refrigerant compressor
and pump stop;
• the indication A11 appears
on the display alternated to
BTWOT value;
• the pressure difference
read on the machine gauge
with the pump stopped and
pump running is lower than
the available head with
maximum pump flow.
J3.1
The pump is defective.
ACFx flashes on the
display and unit
blocked.
L1.1
The processor does not
memorize the data in the
right way
Identify and remove the cause
which provoked BTWOT
temperature decreasing to a
value lower than Ar03.
Increase the water flow.
J2.1
The grille through which
the pump cooling air
passes is obstructed.
Check that the temperature
probe is correctly connected to
the control board terminals
and that the cable is
undamaged. If necessary
replace the probe.
• See problem;
• the compressor stops and
restarts;
• main alarm relay tripped.
J1.1
The pump's thermal
protection device has
tripped because the water
flow is too high.
Try to turn the unit OFF and
ON again.
If this doesn't solve the
problem, contact the nearest
service centre
lights up.
I2.1
Too low water flow.
REMEDY
Check the causes of the fuse
tripping.
Replace the fuse.
• The machine does not
work;
• EE flashes on the display;
• the led of general alarm
icon
Reset the thermal protection
device.
Increase the pressure drop in
the hydraulic circuit, for
example by partially closing
the pump output valve.
Reset the thermal protection
device.
Free the grille.
Reset the thermal protection
device.
Replace the pump.
Turn off and turn on the unit.
If this does not solve the
problem, contact the nearest
service centre.
Turn off and turn on the unit.
If this does not solve the
problem, contact the nearest
service centre.
lights up.
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
35
36
MAINTENANCE AND OPERATING MANUAL
Chapter 10 - Trouble shooting
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
MAINTENANCE AND OPERATING MANUAL
Chapter 11 - Setting tables
CHAPTER 11
SETTING TABLES
The following tables show the list of all masks which contain adjustable parameters.
On Factory setting column are indicated the setting values set during the unit testing; they are referred only to the unit which has the same serial
number you can find on the label of the first page of this manual.
DANGER
The wrong programming of the electronic control could cause big damages to the unit.
The parameters can be modified by specialized personnel only.
11.1 Parameter setting
To modify the following parameters, follow the procedure illustrated in Chapter 7 “Access to “Pr1” parameters (User level)“ and Chapter 7
“How to modify a parameter’s value“.
11.1.1 Thermoregulation parameters
Parameter
Level
ST01
U
Summer set point
ST05
ST06
°C
°F
°C
°F
Dec
Int
9 with 1 compr.
48 with 1 compr.
8 with 2 compr.
47 with 2 compr.
ST02
U
Summer differential
00.0
00.0
25.0
45.0
°C
°F
°C
°F
Dec
Int
4
7
2
4
Summer min. set
-40.0
-40.0
ST01
°C
°F
Dec
Int
5.0
41
Password
0
999
-
-
ST05
Pr2
Description
Min.
Max.
Udm
Resolution
Factory setting
with
with
with
with
1
1
2
2
compr.
compr.
compr.
compr.
11.1.2 Configuration parameters
Parameter
Level
Description
Min.
Max.
Udm
Resolution
Factory setting
CF34
U
Serial address
1
247
1
CF36
U
Default top displaying:
• 0 = BEWIT.
• 1 = BEWOT.
• 2 = none.
• 3 = BAT1.
• 4 = unit setpoint
• 5 = unit status (**)
• 6 = Laser set
• 7 = none
• 8 = operating differential
0
8
1
CF42
U
Default bottom
•
•
•
•
•
•
•
•
•
displaying:
0 = BEWOT.
1 = BTWOT.
2 = BCP1
3 = BAT1.
4 = unit setpoint
5 = unit status (**)
6 = Laser set
7 = none
8 = operating differential
0
8
4
CF43
U
Default top displaying of remote terminal:
• 0 = BEWOT.
• 1 = BTWOT.
• 2 = BCP1
• 3 = BAT1.
• 4 = unit setpoint
• 5 = unit status (**)
• 6 = Laser set
• 7 = none
• 8 = operating differential
0
8
1
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
37
38
MAINTENANCE AND OPERATING MANUAL
Chapter 11 - Setting tables
Parameter
Level
CF44
U
Description
Default bottom
•
•
•
•
•
•
•
•
•
Min.
displaying of remote terminal:
0 = BEWOT.
1 = BTWOT.
2 = none.
3 = BAT1.
4 = unit setpoint
5 = unit status (**)
6 = Laser set
7 = none
8 = operating differential
Udm
Resolution
Factory setting
0
6
4
0
Password
Pr2
Max.
999
-
1 1 .1 . 3 D y m a n i c s e t p o i n t p a r a m e t e r s ( N B C P 1 O T E N A B L E D F U N C T I O N )
Parameter
Level
Description
Min.
Password
Pr2
Max.
0
Udm
Resolution
Factory setting
999
-
1 1 .1 . 4 E n e r g y S a v i n g p a r a m e t e r s ( N O T E N A B L E D F U N CT I O N )
Parameter
Level
Description
Min.
Password
Pr2
Max.
0
Udm
Resolution
Factory setting
999
-
11.1.5 Compressor parameters
Parameter
Level
Description
Min.
Max.
Udm
Resolution
Factory setting
EVAPORATOR UNLOADING
CONDENSER UNLOADING
Password
Pr2
000
999
-
1 1 .1 . 6 F a n p a ra m e t e r s
Parameter
Level
Description
Min.
Max.
Udm
Resolution
Factory setting
HOT START
Password
Pr2
000
999
Min.
Max.
-
11.1.7 Antifreeze support resistance parameters
Parameter
Level
Ar03
U
Description
Antifreeze alarm set
Ar01
Ar02
Udm
°C
°F
Resolution
Dec
Int
Factory setting
3
38
BOILER FUNCTION (NOT ENABLED)
Password
Pr2
000
999
-
1 1 .1 . 8 D e f r o s t p a r a m e t e r s ( N O T E N A B L E D F U N C T I O N )
Parameter
Level
Description
Password
Pr2
Min.
000
Max.
Udm
Resolution
999
Factory setting
-
1 1 .1 . 9 A l a r m p a r a m e t e r s
Parameter
Level
Description
Password
Pr2
Min.
000
Max.
Udm
Resolution
999
Factory setting
-
1 1 .1 . 1 0 L A S E R p a r a m e t e r s ( N O T E N A B L E D F U N C T I O N )
Parameter
Pr2
Level
Description
Password
Min.
000
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
Max.
999
Udm
Resolution
Factory setting
-
MAINTENANCE AND OPERATING MANUAL
Chapter 12 - alarms
CHAPTER 12
ALARMS
12.1 Alarm codes and actions
7.12.3 “How to display the alarms “ALrM”” and 7.12.4 “How to reset an alarm “rSt”” .
See chapter
CODE
MEANING
CAUSE
P1
Alarm of BEWOT Probe damaged or
probe
ACTION
“open collector” outlet / alarm relay is
RESET
Automatic
resistive value out of activated
If the resistive value returns within the
range
envisaged range.
The buzzer is activated
The icon for general alarm flashes
The alarm code is displayed
“open collector” outlet / alarm relay is
Alarm of BTWOT
Probe damaged or
probe
resistive value out of activated
If the resistive value returns within the
range
P2
envisaged range.
The buzzer is activated
Automatic
The icon for general alarm flashes
The alarm code is displayed
“open collector” outlet / alarm relay is
Alarm of BAT1
Probe damaged or
probe
resistive value out of activated
If the resistive value returns within the
range
P4
envisaged range.
The buzzer is activated
Automatic
The icon for general alarm flashes
High pressure
Digital input / high
The alarm code is displayed
“open collector” outlet / alarm relay is
Manual
switch alarm
pressure switch
activated
The digital input is disabled and the
enabled
A01
The buzzer is activated
resetting procedure is carried out
The icon for high pressure alarm flashes
Condensation fan
Digital input
The alarm code is displayed
“open collector” outlet / alarm relay is
Manual
thermal protection
enabled
activated
Digital input disabled and the resetting
The buzzer is activated
procedure is carried out
The icon for general alarm flashes
Low pressure
Digital input / low
The alarm code is displayed
“open collector” outlet / alarm relay is
Automatic
switch alarm
pressure switch
activated
It becomes manual after the value set of
enabled
The buzzer is activated
“tripping per hour”
The icon for low pressure alarm flashes
Manual
The alarm code is displayed
A02
The digital input is disabled and the
resetting procedure is carried out
Automatic
Ambient air low
Analogue input
“open collector” outlet / alarm relay is
temperature alarm
A03
enabled
activated
The buzzer is activated
The icon for general alarm flashes
Unit outlet air low
Analogue input
The alarm code is displayed
“open collector” outlet / alarm relay is
Automatic
temperature alarm
A04
enabled
activated
It becomes manual after nr. “tripping per
The buzzer is activated
The icon for general alarm flashes
hour”
(not enabled)
High temperature
Analogue input
The alarm code is displayed
“open collector” outlet / alarm relay is
Manual
High pressure
enabled if BAT1 & gt;
activated
Disabled if BAT1 & lt; than “set value” and the
of “set value”
A05
The buzzer is activated
resetting procedure is carried out
The icon for high pressure alarm flashes
A06
Low pressure /
Analogue input
The alarm code is displayed
“open collector” outlet / alarm relay is
Automatic
temperature alarm
enabled if BAT1 & lt;
activated
It becomes manual after “tripping per hour”
“set value”
The buzzer is activated
Manual
The icon for low pressure alarm flashes
Disabled if BAT1 & gt; than “set value” and the
The alarm code is displayed
resetting procedure is carried out
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
39
40
MAINTENANCE AND OPERATING MANUAL
Chapter 12 - alarms
CODE
MEANING
A07
Antifreeze alarm
CAUSE
Digital input
ACTION
“open collector” outlet / alarm relay is
RESET
Automatic
enabled if BTWOT activated
It becomes manual after “tripping per hour”
& lt; “set value” and
Manual
The buzzer is activated
actives for the “time The icon for general alarm flashes
Disabling:
set”
- when the antifreeze regulation probe
The alarm code is displayed
BTWOT & gt; “set value” in chiller modality;
“open collector” outlet / alarm relay is
and resetting procedure
Automatic
activated
It becomes manual after “tripping per hour”
The buzzer is activated
Manual
The icon for general alarm flashes
Antifreeze alarm
Digital input
enabled
A07
Disabling: digital input not enabled
resetting procedure
Automatic
Antifreeze alarm
Digital input
motocondensing
enabled
activated
It becomes manual after “tripping per hour”
The buzzer is activated
Manual
The icon for general alarm flashes
A07
The alarm code is displayed
“open collector” outlet / alarm relay is
Disabling: digital input not enabled
resetting procedure
Automatic
units (Not enabled)
Flow meter alarm
Digital input
and pump thermal
enabled
activated
It becomes manual after “tripping per hour”
The buzzer is activated
Manual
set”
The icon for flow meter alarm flashes
Disabling: Digital input disabled for “time
Compressor 1
Digital input
The alarm code is displayed
“open collector” outlet / alarm relay is
set” and reset procedure
Manual
thermal alarm
enabled
activated
Digital input disabled and the resetting
The buzzer is activated
A08
The alarm code is displayed
“open collector” outlet / alarm relay is
procedure is carried out
alarm (air/water or enabled for “time
water/water units)
A09
The icon for general alarm flashes
Compressor 2
Digital input
The alarm code is displayed
“open collector” outlet / alarm relay is
Manual
thermal alarm
enabled
activated
Digital input disabled and the resetting
The buzzer is activated
A10
procedure is carried out
The icon for general alarm flashes
A09-
Compressor 1-2
A10
thermal alarm
The alarm is
visualized but not
The alarm code is displayed
Relay alarm + buzzer activated
If ID is not activated
Manual
enabled during
To reset the alarm enter the programming
“compressor
thermal delay time”
after compressor
Condensation fan
start up
Digital input
“open collector” outlet / alarm relay is
Manual
(Not enabled)
enabled
activated
Digital input disabled and the resetting
The buzzer is activated
A11
procedure is carried out
The icon for general alarm flashes
Error alarm during Defrosting end
The alarm code is displayed
Displayed code
Automatic
defrosting (not
A12
Only signalling
With following correct defrosting cycle
(max. time)
enabled
A13
Compressor 1
Manual
Operating hours & gt;
maintenance alarm “set threshold”
“open collector” outlet / alarm relay is
Reset procedure
Manual
activated
Operating hours reset
The buzzer is activated
A14
Compressor 2
Operating hours & gt;
maintenance alarm “set threshold”
The alarm code is displayed
“open collector” outlet / alarm relay is
Manual
activated
Operating hours reset
The buzzer is activated
A15
Water pump
Operating hours & gt;
maintenance alarm “set threshold”
The alarm code is displayed
“open collector” outlet / alarm relay is
Manual
activated
Operating hours reset
The buzzer is activated
A20
Low water
Only units operating
temperature alarm if the temperature
at evaporator outlet measured by PB2 is
lower than AL23
The alarm code is displayed
“open collector” outlet / alarm relay
activated
The buzzer is activated
The alarm code is displayed
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
Automatic
MAINTENANCE AND OPERATING MANUAL
Chapter 12 - alarms
CODE
MEANING
CAUSE
A21
High water
Only units operating
temperature alarm if the temperature
at evaporator outlet measured by PB2 is
higher than AL24
rtC
Clock alarm
Clock to be
regulated
ACTION
“open collector” outlet / alarm relay are
activated
The buzzer is activated
The alarm code is displayed
“open collector” outlet / alarm relay is
activated
RESET
Automatic
Manual
Clock regulation and resetting procedure
The buzzer is activated
The icon for general alarm flashes
Manual
activated
Resetting procedure
If after resetting the alarm persists replace
The icon for general alarm flashes
the clock
The alarm code is displayed
“open collector” outlet / alarm relay is
Manual
activated
Resetting procedure
The buzzer is activated
If after resetting the alarm persists the
The icon for general alarm flashes
device remains blocked
The alarm code is displayed
“open collector” outlet / alarm relay is
Automatic
heat pump with
activated
With correct re-programming
commutation valve
The buzzer is activated
not configured
EE
The alarm code is displayed
“open collector” outlet / alarm relay is
The buzzer is activated
Clock alarm
Clock damaged
Clock malfunction
rtF
The icon for general alarm flashes
Eeprom error alarm Memory data lost
ACF2 Configuration alarm Unit configured as
The alarm code is displayed
“open collector” outlet / alarm relay is
Automatic
with the same
activated
With correct re-programming
configuration
The buzzer is activated
ACF3 Configuration alarm Two digital inputs
The icon for general alarm flashes
The alarm code is displayed
“open collector” outlet / alarm relay is
Automatic
digital input not
activated
With correct re-programming
configured or
The buzzer is activated
CF28= 2 probe
The icon for general alarm flashes
ACF4 Configuration alarm CF28= 1 and the
BAT1 different from The alarm code is displayed
FErr
Operating alarm
3
with two digital
The buzzer is activated
Manual
inputs enabled at the The icon for general alarm flashes
Net frequency
Automatic
alarm
AFr
Disabling of digital inputs + reset procedure
same time
Net frequency out of “open collector” outlet / alarm relay is
range
Net frequency into operating range
activated
The buzzer is activated
The icon for general alarm flashes
ALOC General alarm
ID configured as
The alarm code is displayed
Relay alarm + buzzer activated
ID configured as unit blocked generic alarm
alarm “time set”
“fixed time”
Automatic:
AL21
It becomes manual after “tripping per hour
unit blocked generic
set” (reset procedure in function menu). It is
memorized in the alarm historic only with
manual rearm
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
41
42
MAINTENANCE AND OPERATING MANUAL
Chapter 12 - alarms
12.2 Outlet blocking
Alarm code Alarm Description
Comp. 1
Comp. 2
Antifreeze
Resistances
P1
BEWOT probe
Yes
Yes
Yes
P2
BTWOT probe
Yes
Yes
Yes
P3
BCP1 probe
Yes
Yes
Yes
P4
BAT1 probe
Yes
Yes
Yes
A01
High pressure switch
Yes
Yes
Fan thermal protection
Yes
Yes
A02
Low pressure switch
Yes
Yes
A03
Ambient air low temperature
A04
Air low temperature at unit
outlet
Yes
Yes
A05
High temperature High
pressure
Yes
Yes
A06
Low pressure Low
temperature
Yes
Yes
A07
Analogue input antifreeze
Yes
Yes
A07
Digital input antifreeze
Yes
Yes
A07
Motorcondensing antifreeze
Yes
Yes
A08
Flow meter/pump thermal
protection
Yes
Yes
A09
Compressor 1 thermal
protection
Yes
A10
Compressor 2 thermal
protection
A09-A10
Compressor 1-2 thermal
protection
A13
Compressor 1 maintenance
A14
Compressor 2 maintenance
A15
Water pump maintenance
A20
Low water temperature
BTWOT
A21
High water temperature
BTWOT
rtC
Clock alarm
rtF
Clock alarm
EE
Eeprom error
Yes
Yes
Yes
Yes
ACF2
Configuration alarm
Yes
Yes
Yes
Yes
ACF3
Configuration alarm
Yes
Yes
Yes
Yes
ACF4
Configuration alarm
Yes
Yes
Yes
Yes
ACF6
Configuration alarm
Yes
Yes
Yes
Yes
FErr
Operating error
(motorcond.)
Yes
Yes
Afr
Net frequency alarm
Yes
Yes
Yes
Yes
ALOC
Generic alarm
Yes
Yes
Yes
Yes
Pump
Yes
Boiler Res.
Yes
Yes
Yes
Yes
Yes
Yes
NOTE
The electronic control board is furnished with a “history” loop, see chapter 7.12.5 “How to display the alarm historic “ALoG”” .
TAEevo015÷351
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.