Electrolux Professional EBFA22RQ Manuel de service
Doc. N. 595R49500
SERVICE MANUAL
FREEZER 100 150 200 2019
Edition 0.1.00 – 09/2019
SERVICE MANUAL Blast Chiller Freezer SKCH 100 - 150 -200
Document made by Product Care – Technical Training & Service – Vallenoncello PN/Italy
All the images and information of this document are property of ©Electrolux Professional Spa. This document
and all of its contents cannot be copied or used, in part or entirely without the written authorization of Electrolux
Professional Spa.
©Electrolux Professional Spa.
DOC NUMBER 595R495.. 2
SERVICE MANUAL Blast Chiller Freezer SKCH 100 - 150 -200
EDITION
DESCRIPTION
DATE
REVISIONS UPDATE:
1.0.0 First publication SEPTEMBER. 2019
1.0.1 Second publication MAY 2020
Foreward
The service manual (hereinafter Manual) provides the engineer with information necessary for correct
and safe care of the machine (hereinafter “machine“, “appliance“ or “unit”).
The following instructions are intended to maintain the machine performance and to preventing injury to persons and animals and damage to property due to improper operating procedures.
All persons involved in machine transport, installation, commissioning and maintenance, repair and disassembly must refer to the content of this manual before carrying out the various operations. This, in order to avoid
wrong and improper actions that could compromise the machine's integrity or endanger people.
If, after reading this manual, there are still doubts regarding machine use, do not hesitate to contact the Manufacturer or the Customer Care to receive prompt and precise assistance for better operation and maximum
efficiency of the machine. During all stages of machine assessment, always respect the current regulations on
safety, work hygiene and environmental protection. It is the user's responsibility to make sure the machine is
started and operated only in optimum conditions of safety for people, animals and property.
IMPORTANT
• The manufacturer declines any liability for operations carried out on the appliance without respecting the
instructions given in this manual as well as for operations carried out by the user without respecting the
instructions given in the user manual.
• The manufacturer reserves the right to modify the appliances presented in this publication without notice;
manufacturer’s relevant technical bulletins should be used as integration(s)/addendum(s).
• No part of this manual may be reproduced without the consent of the manufacturer
• This manual is available in digital format by:
– contacting the reference customer care;
– downloading the latest and up to date manual/technical bulletin(s) on the web site:
“www.electrolux.com/professional“.
The manual must always be part of the documentation available when servicing the machine.
DOC NUMBER 595R495.. 3
SERVICE MANUAL Blast Chiller Freezer SKCH 100 - 150 -200
SKCH100R
SKCH150B
220 kg
CONSUMPREFR.
MODELS COVERED BY THE SERVICE MANUAL
This manual is relative to the following list of appliances.
MODEL TYPE
DESCRIPTION
POWER
WATT
POWER
HEATING W
VOLTAGE
HZ
GAS REF.
CLIMATC
CLASS
AMPERE
100 KG
REMOTE
100/85 kg
20 GN1/1
150 KG
BUILT IN
150 kg 20
GN2/1
200 KG
BUILT IN
200 kg 20
GN2/1
150 KG
REMOTE
150 kg 20
GN2/1
200 KG
REMOTE
200 kg 20
GN2/1
220 KG
REMOTE
2x20 GN
1/1
3000 8000 11100 6400 6400 /
3000 5850 5850 6400 6400 6400
380-415
3N
380-415 3N 380-415 3N 380-415 3N
380-415
3N
380-415
3N
50/60 50 50 50/60 50/60 50/60
R452 * R452 * R452 R452 R452 R452
5 5 5 5 5 5
6,4 15.5 20.5 13.5 13.5
REFR.
QUANTITY g.
IP
PROTECTION
TION H2O
L/min.
tbd 2300 3000 tbd tbd tbd
X4 X4 X4 X4 X4 X4
/
MODEL TYPE
USA
DESCRIPTION
POWER WATT
VOLTAGE
GAS REF.
CLIMATC CLASS
MCA MOP
Cycle freezer 240 min=1331 L/Minutes
Cycle refrigerated 90 min= 672 L/Minutes
100 KG
REMOTE
200 KG
REMOTE
100/85 kg 20 GN1/1 200 kg 20 GN2/1
3800 6700
208 208
R448a R448A
5 5
16/20 33/35
QUANTITY g.
IP PROTECTION
TBD TBD
X4 X4
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SERVICE MANUAL Blast Chiller Freezer SKCH 100 - 150 -200
INDEX
1. GENERAL INFORMATION ......................................................................................................................... 10
1.1 GENERAL INFORMATION ..................................................................................................................................... 10
1.2 SAFETY INFORMATION/PRECAUTIONS ............................................................................................................. 11
1.3 PERSONAL PROTECTION EQUIPMENT .............................................................................................................. 12
1.4 GENERAL SAFETY INFORMATION ...................................................................................................................... 13
1.4.1 Residual risk ..................................................................................................................................................... 13
1.5 SAFETY SIGNS TO BE PLACED NEAR THE M ACH INE AREA .......................................................................... 15
1.6 DATA PLATE (IDENTIFICATION STICKER) .......................................................................................................... 16
1.6.1 Serial Number (Production Date) ..................................................................................................................... 17
1.7 TECHNICAL DATA AND DRAWINGS WITH MEASUREMENTS ........................................................................... 18
1.8 MACHINE PRESENTATION 100 KG ...................................................................................................................... 19
1.9 MACHINE PRESENTATION 200 KG ...................................................................................................................... 20
2. INSTALLATION AND COMMISSIONING .................................................................................................. 21
2.1 INSTALLATION ....................................................................................................................................................... 21
2.2 PRE-CONNECTION PREPARATIONS ................................................................................................................... 21
2.3 LIST OF POSSIBLE INSTALLATION SOLUTION .................................................................................................. 21
2.4 ROOM REQUIREMENTS ....................................................................................................................................... 21
2.5 REFRIGERATION POWER OF REMOTE UNIT ..................................................................................................... 21
2.5.1 REFRIGERATION POWER TABLE ................................................................................................................. 21
2.6 CONNECTION REMOTE UNIT............................................................................................................................... 22
2.6.1 Technical Instructions / Installation Precautions ............................................................................................... 22
2.6.2 General Information .......................................................................................................................................... 22
2.6.3 Basic Installation – Overview ............................................................................................................................ 22
2.6.4 Installation Steps .............................................................................................................................................. 23
2.6.5 System Evacuation ........................................................................................................................................... 24
2.6.6 Procedures for Refrigerant Charge .................................................................................................................. 24
2.6.7 Piping ............................................................................................................................................................... 25
2.6.8 Basic Accessories of a Cooling System ........................................................................................................... 26
2.6.9 Expansion Valve ............................................................................................................................................... 28
2.6.10 Setting the Expansion valve ........................................................................................................................... 28
2.6.11 Correct position of the thermostatic bulb ........................................................................................................ 28
2.6.12 Identification of the thermostatic valve............................................................................................................ 29
2.6.13 Charge MOP .................................................................................................................................................. 30
2.6.14 Quantity of refrigerant to charge ..................................................................................................................... 30
2.6.15 Electrical connection....................................................................................................................................... 31
2.6.15.1 Electrical box drawing on remote unit ................................................................................................. 31
2.6.15.2 Electrical box in the BCF IE. Of clamp connections .......................................................................... 32
2.7 UNPACKING AND POSITIONING THE EQUIPMENT ............................................................................................ 33
2.8 COMMISSIONING .................................................................................................................................................. 33
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SERVICE MANUAL Blast Chiller Freezer SKCH 100 - 150 -200
2.8.1 Power connection on bcf .................................................................................................................................. 33
2.8.2 Power connection on bcf 208V (USA) .............................................................................................................. 33
2.8.3 WATER CONNECTIONS (MODEL WITH WATER CONDENSATION BUILT IN) ........................................... 34
2.8.4 Description Main Display .................................................................................................................................. 36
2.8.4.1 Icon description, Message of Dialogues ............................................................................................... 37
2.8.5 SOFTWAR UPDATE ........................................................................................................................................ 39
2.8.6 PROGRAMMING FILE ..................................................................................................................................... 40
2.8.6.1 HOW TO UPDATE: .............................................................................................................................. 40
2.8.7 PROGRAMMING PARAMETERS .................................................................................................................... 41
2.8.8 PNC & SER UPLOAD (pncSerial.json)............................................................................................................. 42
2.8.8.1 HOW TO UPDATE PNC & SER (pncSerial.json): ................................................................................ 42
2.8.8.2 HOW TO INSTALL UPDATE PNC & SER (pncSerial.json):................................................................. 45
2.8.9 Usb Data Transfer ............................................................................................................................................ 47
2.8.9.1 Users management .............................................................................................................................. 47
2.8.9.2 What follows is a diagram to show menu navigation ............................................................................ 47
2.8.9.3 Select types .......................................................................................................................................... 48
2.8.9.4 Select type ............................................................................................................................................ 48
2.8.9.5 Select file .............................................................................................................................................. 49
2.8.9.6 Select file or add new file...................................................................................................................... 49
2.8.9.7 Enter file name ..................................................................................................................................... 50
2.8.9.8 Select Items .......................................................................................................................................... 50
2.8.9.9 Confirm ................................................................................................................................................. 51
2.8.9.10 Replace or add items ie . PARAMETERS .......................................................................................... 51
2.8.9.11 Skip, Duplicate, Add ........................................................................................................................... 52
2.8.9.12 Enter item name ................................................................................................................................. 52
2.8.9.13 Types list for service: .......................................................................................................................... 53
2.8.9.14 File names .......................................................................................................................................... 53
2.8.9.15 Item names ......................................................................................................................................... 53
2.8.9.16 Errors and Warnings: ......................................................................................................................... 53
2.8.10 How To Acess To Service Area ...................................................................................................................... 55
2.8.10.1 HOW TO SHOW THE “DATA MONITOR” .......................................................................................... 56
2.8.10.2 HOW TO EXIT FROM “DATA MONITOR” and “Bypass” .................................................................. 56
2.8.10.3 HOW TO ENTER IN “BYPASS” ......................................................................................................... 56
2.8.10.4 HOW TO UPLOAD THE PNC AND SERIAL NUMBER...................................................................... 56
2.8.10.5 HOW TO UPLOAD THE PARAMETER and INTEROGATION .......................................................... 56
2.8.10.6 SERVICE AMBIENTE EXPLANATION .............................................................................................. 57
2.9 WIZARD .................................................................................................................................................................. 64
2.9.1 Installation wizard check................................................................................................................................... 64
2.9.2 Manual Test Wizard ......................................................................................................................................... 72
2.9.2.1 Start manual wizard .............................................................................................................................. 72
3. USE OF APPLIANCE.................................................................................................................................. 75
3.1 OPERATING INSTRUCTIONS ............................................................................................................................... 75
3.2 PREVENTIVE MAINTENANCE PLAN (FOR SERVICE): OPERATION FREQUENCY .......................................... 75
4. DETAILED APPLIANCE AND COMPONENTS DESCRIPTION/FUNCTIONING .................................. 76
4.1 MAIN BOARD “PETRA” .......................................................................................................................................... 76
4.1.1 Functionality ..................................................................................................................................................... 76
4.2 USER INTERFACE “TOUCH” ................................................................................................................................. 77
4.2.1 Functinality ....................................................................................................................................................... 77
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SERVICE MANUAL Blast Chiller Freezer SKCH 100 - 150 -200
4.2.2 PMH power supply 100-240 Vac to 12V dc ...................................................................................................... 78
4.3 SEMI-ERMETIC COMPRESSOR ........................................................................................................................... 79
4.3.1 Over view ......................................................................................................................................................... 79
4.3.2 Expected use of the unit ................................................................................................................................... 79
4.3.3 What follows is forbidden: ................................................................................................................................. 79
4.3.4 Compressor identification ................................................................................................................................. 79
4.3.5 Airing of the installation room ........................................................................................................................... 79
4.3.6 Pipes Connections ........................................................................................................................................... 80
4.3.7 Table of pipe connection of Dorin compressor ................................................................................................. 81
4.3.8 Electrical connections ....................................................................................................................................... 81
4.3.9 Protection System ............................................................................................................................................ 82
4.3.10 Commissioning: Preliminary Works ................................................................................................................ 82
4.3.11 Compressors Replacement ............................................................................................................................ 83
4.3.12 Compressor Disassembly ............................................................................................................................... 83
4.3.13 Number of starts ............................................................................................................................................. 83
4.3.14 Rotalock Valves .............................................................................................................................................. 84
4.3.15 Crankcase heater installations ....................................................................................................................... 85
4.3.16 Evaporator Fan ............................................................................................................................................... 86
4.3.16.1 Functionality fan 150 /200 KG ............................................................................................................ 86
4.3.17 Probe’s ........................................................................................................................................................... 87
4.3.17.1 Functionality ....................................................................................................................................... 87
4.3.17.2 Probe functions .................................................................................................................................. 87
4.3.18 Food Probe ..................................................................................................................................................... 88
4.3.18.1 Functionality ....................................................................................................................................... 88
4.3.19 Heater Evaporator ( model 100 150 200 kg) .................................................................................................. 91
4.3.19.1 Functionality 150 200 KG ................................................................................................................... 91
4.3.19.2 Functionality 100 KG .......................................................................................................................... 92
4.3.20 Test Digital I/O: Step By Step Digital Operable Components Testing ............................................................ 93
4.3.21 Identify rapid“test cycles and components” .................................................................................................... 93
5. TROUBLESHOOTING ................................................................................................................................ 95
5.1 TECHNICIAN TROUBLESHOOTING ..................................................................................................................... 95
6. SERVICING THE APPLIANCE ................................................................................................................. 102
6.1 LIST OF NEEDED TOOLS .................................................................................................................................... 102
6.1.1 Ordinary Tools ................................................................................................................................................ 102
6.1.2 Special Tools: List, Description And Spare Part Code Per Each Special Tool ............................................... 102
6.2 IMPORTANT PROCEDURES FOR INSTALLATION ............................................................................................ 103
6.2.1 Storage of components .................................................................................................................................. 103
6.2.2 Cleaning the pipes .......................................................................................................................................... 103
6.2.3 Installation of refrigeration system components ............................................................................................. 103
6.3 REPLACING EQUIPMENT COMPONENTS OF 100 KG ...................................................................................... 104
6.3.1 Control Panel .................................................................................................................................................. 104
6.3.2 Command Panel ............................................................................................................................................. 104
6.3.3 Front panel ..................................................................................................................................................... 105
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6.3.4 Opening the fan casings ................................................................................................................................. 107
6.3.5 Evaporator fan ................................................................................................................................................ 108
6.3.6 Cell probe ....................................................................................................................................................... 109
6.3.7 Evaporator probe (out) ................................................................................................................................... 109
6.3.8 Evaporator probe ............................................................................................................................................ 110
6.3.9 Food probe ..................................................................................................................................................... 110
6.3.10 Door frame heating cable ............................................................................................................................. 111
6.3.11 Door seal ...................................................................................................................................................... 112
6.3.12 Handle .......................................................................................................................................................... 112
6.3.13 Evaporator .................................................................................................................................................... 113
6.3.14 Thermostatich valve ..................................................................................................................................... 114
6.3.15 Resistors ...................................................................................................................................................... 115
6.4 REPLACING EQUIPMENT COMPONENTS OF 200 KG ...................................................................................... 116
6.4.1 Upper Panel ................................................................................................................................................... 116
6.4.2 Magnetic switch door ...................................................................................................................................... 116
6.4.3 Control Panel .................................................................................................................................................. 117
6.4.4 Command Panel ............................................................................................................................................. 117
6.4.5 Door frame heating cable ............................................................................................................................... 118
6.4.6 Heating cable behind the control panel .......................................................................................................... 119
6.4.7 Food probe ..................................................................................................................................................... 119
6.4.8 Opening the fan casing................................................................................................................................... 120
6.4.9 Thermostat ..................................................................................................................................................... 121
6.4.10 Cell probe ..................................................................................................................................................... 121
6.4.11 Evaporator fan .............................................................................................................................................. 122
6.4.12 Evaporator probe .......................................................................................................................................... 122
6.4.13 Lower evaporator heating element ............................................................................................................... 123
6.4.14 Heating element evaporator ......................................................................................................................... 124
6.4.15 Evaporator .................................................................................................................................................... 125
6.4.16 Solenoid valve .............................................................................................................................................. 126
6.4.17 Compressor .................................................................................................................................................. 127
6.4.18 Condenser fan .............................................................................................................................................. 128
6.4.19 Dehidrator Filter ............................................................................................................................................ 128
6.4.20 Thermostatich valve ..................................................................................................................................... 129
6.4.21 Outevaporator probe (green) ........................................................................................................................ 130
6.4.22 Condenser probe (black) .............................................................................................................................. 131
6.4.23 Tanic Receiver ............................................................................................................................................. 131
6.4.24 Condenser .................................................................................................................................................... 132
6.4.25 Pressure switch ............................................................................................................................................ 133
6.4.26 Water thermostatic valve .............................................................................................................................. 133
6.4.27 Handle .......................................................................................................................................................... 134
6.4.28 Door gasket .................................................................................................................................................. 134
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6.4.29 Door hinges .................................................................................................................................................. 135
6.4.30 Electrical box ................................................................................................................................................ 136
6.4.31 Motor protection ........................................................................................................................................... 137
6.4.32 Electric box fan ............................................................................................................................................. 137
6.4.33 LED lamps .................................................................................................................................................... 138
Access display and replacement of mambrane sticker ................................................................................. 139
6.5 PREVENTIVE MAINTENANCE PLAN .................................................................................................................. 142
6.5.1 Refert to document “Check list preventive maintenance ................................................................................ 142
7. RELATED DOCUMENTS ......................................................................................................................... 142
7.1 EXPLODED VIEW ................................................................................................................................................. 142
7.1.1 List Of The Vital and Wear&Tear Parts .......................................................................................................... 142
7.1.2 List Of Available Accessories ......................................................................................................................... 142
7.1.3 List Of Consumables ...................................................................................................................................... 142
7.1.4 List Of Spares Wear And Tear ....................................................................................................................... 142
7.2 ELECTRICAL WIRING DIAGRAM ........................................................................................................................ 142
7.3 PARAMETERS LIST: ............................................................................................................................................ 143
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SERVICE MANUAL Blast Chiller Freezer SKCH 100 - 150 -200
1. GENERAL INFORMATION
To ensure safe use of the machine and a proper understanding of the manual it is necessary to be familiar with the terms and typographical conventions used in the documentation. The following symbols are
used in the manual to indicate and identify the various types of hazards:
WARNING
Danger for the health and safety of operators.
WARNING
Danger of electrocution - dangerous voltage.
CAUTION
Risk of damage to the machine or the product.
WARNING
Danger of magnetic fields.
IMPORTANT
Important instructions or information on the product
Read the instructions before using the appliance
Clarifications and explanations
• Only specialised personnel are authorised to operate on the machine.
• This appliance must not be used by minors and adults with limited physical, sensory or mental abilities or
without adequate experience and knowledge regarding its use.
• Do not let children play with the appliance.
• Keep all packaging and detergents away from children.
• Cleaning and user maintenance shall not be made by children without supervision.
• Do not store explosive substances, such as pressurized containers with flammable propellant, in this ap-
pliance or close to the appliance.
• Do not remove, tamper with or make the machine “CE“ marking illegible.
• Refer to the data given on the machine’s data plate “CE“ marking for relations with the Manufacturer (e.g.
when ordering spare parts, etc.).
• When scrapping the machine, the “CE“ marking must be destroyed.
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SERVICE MANUAL Blast Chiller Freezer SKCH 100 - 150 -200
Risks mainly of a mechanical, thermal and electrical nature exist in the machine. Where possible the risks have
been neutralised:
• directly, by means of adequate design solutions.
• indirectly by using guards, protection and safety devices.
• During maintenance several risks remain, as these could not be eliminated, and must be
neutralised by adopting specific measures and precautions.
• Do not carry out any checking, cleaning, repair or maintenance operations on moving parts.
Workers must be informed of this prohibition by means of clearly visible signs.
• To guarantee machine efficiency and correct operation, periodical maintenance must be carried out
according to the instructions given in this manual.
• Make sure to periodically check correct operation of all the safety devices and the insulation of
electrical cables, which must be replaced if damaged.
• Extraordinary machine maintenance operations must only be carried out by specialized Technicians
provided with all the appropriate personal protection equipment (safety shoes, gloves, glasses,
overalls, etc.), tools, utensils and ancillary means.
• Never operate the machine, removing, modifying or tampering with the guards, protection or safety devices.
Before carrying out any operation on the machine, always consult the manual which gives the correct
procedures and contains important information on safety.
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SERVICE MANUAL Blast Chiller Freezer SKCH 100 - 150 -200
Protective
Transport — ● ○ —
○
Handling ● ● ○ — —
Unpacking ○ ● ○ — —
Installation ○ ● ○ — —
Normal use ● ●
●1 ○ —
Adjustments
○ ● — — —
Routine
cleaning
Extraordinary
cleaning
Maintenance
○ ● ○ — —
Dismantling ○ ● ○ ○ —
Scrapping ○ ● ○ ○ —
Key:
●
PPE REQUIRED
○
PPE AVAILABLE OR TO BE USED IF NECESSARY
—
PPE NOT REQUIRED
Summary table of the Personal Protection Equipment (PPE) to be used during the various stages of the machine's service life.
Stage
garments
Safety footwear Gloves Glasses Safety helmet
○ ● ● ○
○ ● ● ○
—
—
1
During Normal use, gloves must be heatproof to protect hands from contact with hot food or hot parts of the appliance
and/or when removing hot items from
personnel or users can involve exposure to chemical risk and possible damage
Failure to use the personal protection equipment by operators, specialized
it.
to
health (depending on the
model).
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SERVICE MANUAL Blast Chiller Freezer SKCH 100 - 150 -200
Slipping or falling
The operator can slip due to water or dirt on the floor
Contact with live parts during maintenance operations carried out
When handling the machine or the packing containing it, using un-
The machines are provided with electric and/or mechanical safety devices for protecting workers and the machine itself. Therefore, the user must not remove or tamper with such devices. The Manufacturer declines any
liability for damage due to tampering or their non-use.
Never operate the machine, removing, modifying or tampering with the guards, protection or safety devices.
Do not make any modifications to the parts supplied with the appliance.
Several illustrations in the manual show the machine, or parts of it, without guards or with guards removed.
This is purely for explanatory purposes.
Do not use the machine without the guards or with the protection devices deactivated.
Do not remove, tamper with or make illegible the safety, danger and instruction signs and labels on the machine.
Air recirculation must take into account the air necessary for combustion, 2 m³/h/kW of gas power, and also
the "well-being" of persons working in the kitchen.
Inadequate ventilation causes asphyxia.
Do not obstruct the ventilation system in the place where this appliance is installed.
Do not obstruct the vents or ducts of this or other appliances.
Place emergency telephone numbers in a visible position.
The measured sound level emitted “A“ does not exceed 70 dB (“A“).
Turn the appliance off in case of fault or poor operation.
Do not use products (even if diluted) containing chlorine (sodium hypochlorite, hydrochloric or muriatic acid,
etc.) to clean the appliance or the floor under it.
Do not use metal tools to clean steel parts (wire brushes or Scotch Brite type scouring pads).
Do not allow oil or grease to come into contact with plastic parts.
Do not allow dirt, fat, food or other residuals to form deposits on the appliance.
Do not spray water or use steam to clean the equipment.
Do not store or use gasoline or other flammable vapours, liquids or items near this or any other appliance.
Do not spray aerosols near this appliance while it is in operation.
Never check for leaks with an open flame.
1.4.1 Residual risk
The machine has several risks that were not completely eliminated from a design standpoint or with the installation of adequate protection devices. Nevertheless, through this manual the Manufacturer has taken steps to
inform operators of such risks, carefully indicating the personal protection equipment to be used by them. In
order to reduce the risks, provide for sufficient spaces while installing the unit.
To preserve these conditions, the areas around the machine must always be:
1. kept free of obstacles (e.g. ladders, tools, containers, boxes, etc.);
2. clean and dry;
3. well lit.
For the Customer's complete information, the residual risks remaining on the machine are indicated below:
such situations are deemed improper and therefore strictly forbidden.
Residual risk Descripti on of hazardous situa tion
Burns/abrasions (e.g. heating elements)
Electrocution
Tipping of loads
The operator deliberately or unintentionally touches some components inside the machine without using protective gloves
with the electrical panel powered
suitable lifting systems or accessories or with the unbalanced load
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SERVICE MANUAL Blast Chiller Freezer SKCH 100 - 150 -200
Mechanical safety characteristics, hazards
The appliance does not have sharp edges or protruding parts. The guards for the moving and live parts are
fixed to the cabinet with screws, to prevent accidental access.
Protection devices installed on the machine
The guards on the machine are:
(e.
fixed guards
release connectors that can only be removed or opened with tools.
g. casings, covers, side panels, etc.), fixed to the machine and/or frame with screws or quick-
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SERVICE MANUAL Blast Chiller Freezer SKCH 100 - 150 -200
Prohibition Meaning
Do not remove the safety devices
Do not use water to extinguish fires (placed on electrical parts)
Danger Meaning
Danger of burns
Keep the area around the appliance clear and free from combustible materials. Do not keep flammable materials in the vicinity of
the appliance
Install the appliance in a well-ventilated place to avoid the creation
of dangerous mixtures of unburnt gases in the same room
Danger of electrocution (shown on electrical parts with indication of
voltage)
Risk of electromagnetic fields
Access forbidden to wearers of electrical stimulator (pacemakers)
End of use: When the appliance is no longer to be used, make it unusable by removing the mains power
supply wiring.
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SERVICE MANUAL Blast Chiller Freezer SKCH 100 - 150 -200
100 kg
200 kg
F.Mod.
Factory model description
Comm.Model
Commercial description
Type Ref.
Refer to model of family (used on spc)
PNC
Production number code
Ser.No
Serial number
V
Power supply voltage / phase
Hz
Power supply frequency
kW
Max. Power input
A
Current absorption
Cyclopentane
Expanding gas used in insulation
IP
Dust and water protection rating
CE
CE marking
L
Logo IMQ/GS
Refrigerant Type
Gas type used
Climatic class
Refer to climatic test
Defrost power
KW
GWP
Global Warning Potential
CO2 eq
Quantity of greenhouse gases
CAP.
Nominal capacity
Electrolux Professional
The identification sticker is located under the flap of the control panel. The meaning of the various information
is listed below:
The meaning of the various information is listed below.
Legend of data plate
SPAViale Treviso, 15
33170Pordenone (Italy)
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Manufacturer:
SERVICE MANUAL Blast Chiller Freezer SKCH 100 - 150 -200
18
YEAR
1.6.1 Serial Number (Production Date)
The serial is necessary to find the correct spare part or to ask tech. support.
EXAMPLE: Serial Number
8 01 1 0001
WEEK
01
APPLIANCE
0001
MANUFACTURED
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SERVICE MANUAL Blast Chiller Freezer SKCH 100 - 150 -200
A B C
A B C
Please, for technical data and overall drawings refer to Installation Manual available on website www.electro-
lux.com/professional.
Table reference of dimensional units:
Width mm Depth mm Height mm
Models
100 Kg 1040 850 1793 1412
Whit door open
Table reference of dimensional units:
Models
200 Kg 1400 1266 2489 2156
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Width mm Depth mm Height mm
Whit door open
SERVICE MANUAL Blast Chiller Freezer SKCH 100 - 150 -200
1
Guides
2
Main electrical box
3
Evaporator module
4
Command module
5
Door module
POS DEFINITION
EWD to scheme
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SERVICE MANUAL Blast Chiller Freezer 100 - 200
POS
DEFINITION
1
Unit or Remote connections
2
Main electrical box
3
Evaporator module
4
Command module
5
Door module
1
Compressor
2
Thermostatich valve
3
Condenser fan
4
Condenser
5
Water thermostatic valve
6
Dehidrator filter
7
Tanic receiver
8
Pressure switch
9
Solenoid valve
POS DEFINITION
DOC NUMBER 595R495 20
SERVICE MANUAL Blast Chiller Freezer 100 - 200
RELATIV HUMID-
CONDENSATION
MASS OF STEAM
3
25°C
60%
16,7°C
12,0 g/kg
4
30°C
55%
20,0°C
14,8 g/kg
5
40°C
40%
23,9°C
18,8 g/kg
7
35°C
75%
30,0°C
27,3 g/kg
-10 -20
-36 -40
881158 H505CS
R404A 11740 8130
3690 2850
AIR 40°C 30 met ers
881159 H751CS
R404A
15990 11110 6010 \
AIR 40°C
30 meters
881160 H1001CS
R404A 22190
14490 7190 5570
AIR 40°C 30 met ers
881171 H505CS R404A 11740 8130
3690 2850 WATER 10° to 30°
30 meters
881172 H751CS R404A 15990 11110
6010 \ WATER 10° to 30° 30 meters
881173 H505CS R404A 11740
8130 3690 2850 AIR and WATER
40°C 30 meters
881223 H505CS
R452A 11650 8040
3600 2770 AIR 40°C 30 meters
881224 H751CS
R452A 15620 10870 5910 \
AIR 40°C 30 met ers
881225 H1001CS R452A 21760 15140 7100 5560
AIR 40°C 30 met ers
881228 H505CS R452A
11650 8040 3600 2770
WATER 10° to 30° 30 meters
881229 H751CS R452A 15620
10870 5910 \ WATER 10° to 30° 30 meters
881230
H505CS R452A 11650 8040
3600 2770 A IR and WATER 40°C 30 meters
EVAP TEM in WATT
PNC REMOTE UNIT
COMPRESSOR
AMB. TEMP./
Water temp.
MAX pipe s USED
Type Gas
CONDENSATION
2. INSTALLATION AND COMMISSIONING
Refer to IM (Installation manual) LINK TO PNC OF THE UNIT FIND IN WEB
Refer to the installation drawing for information about supply power connection and general clearances of the
unit sides from walls and ceiling.
1. Insulation bottom and ramp ( only model 150 200kg)
2. Marine feet: guarantee free access to the unit rear side.
3. Remote configuration: see IMPORTANT note at 2.7.1.
According to IEC/EN 60335-2-89 and IEC/EN ISO 23953, room requirements depend on the unit climatic class:
see the table below.
For the specific unit climatic class refer to the installation manual and to the unit data plate.
CLIMATIC CLASS
TEMPERATURE
2.5.1 REFRIGERATION POWER TABLE
ITY
POINT
PRESENT IN THE AIR
DOC NUMBER 595R495 21
SERVICE MANUAL Blast Chiller Freezer 100 - 200
2.6.1 Technical Instructions / Installation Precautions
The instructions below are general guidelines, but they do contain the major points that shall be taken into account for proper and safe product installation for assuring best performances and preventing warranty voidance.
Caution: Refrigeration systems are pressurized circuits! It is therefore of the utmost importance that
the condensing units are removed and / or installed only by technically qualified personnel, with
knowledge of the equipment and of the processes to be adopted.
2.6.2 General Information
Inspect the unit for detecting possible damages occurred during the transport: report to the carrier immediately if any damage.
The warranty does not cover damage due to storage, transport or installation of the condensing unit
carried out in the wrong position.
Warning: Make sure you have read and understand all procedures and caution messages before
you execute any maintenance or installation tasks! It is imperative – for your own safety - that the testing
devices used are functioning well and properly sized.
2.6.3 Basic Installation – Overview
The installation site shall be well ventilated, ensuring that there will be sufficient air flow behind the condenser
(refer to Figure 1)
Figure 1 – Natural airflow through the roof
If the flow of air to the condenser is limited (or even partially blocked), system performance and reliability can be
drastically reduced. Condensing units are designed to operate at ambient temperatures up to 43°C (110°F).
Therefore, make sure that the temperature at the installation site does not exceed the recommended limit.
Warning: it is necessary to periodically clean the condenser, so that no particles damage or block
the air circulation.
DOC NUMBER 595R495 22
SERVICE MANUAL Blast Chiller Freezer 100 - 200
2.6.4 Installation Steps
INFORMATION:
Select and size the equipment needed to assemble the refrigeration system according to the project specifications
(pipes, valves, accessories, condensing unit). Carefully observe the scope for each model.
IMPORTANT: Size pipe/hose based on the condensing unit dimensions (do not size based on the evapo-
rator).
A. Phases
1. Weld the pipes to the condensing unit and evaporator connections. Check the seal (leak test) in
all soldered or threaded connections.
2. Obtain the vacuum in the circuit (check with the pressure gauge if the vacuum is stable).
3. Fill the required refrigerant mass (kg): the gas should preferably be charged in the liquid phase.
4. To ascertain the correct behavior of the system, switch ON and monitor:
a. Low/high pressures
b. Liquid/gas lines suction temperatures
5. If detecting low performance or excessive pressures, fine tune the set up by either filling more
refrigerant or discharging it until reaching the correct pressures/temperatures (see below additional general notes for more details).
B. Refrigerant mass set up:
• Taking into account both the temperature set on the BCF chamber and the temperature where the remote
condenser is installed, when the liquid/gas lines suction temperature gets closer to the design values, proceed
with the final adjustments (phase 5 mentioned above).
• The superheating at the evaporator (given by the difference between temperatures at the piping surface at
the point where the expansion valve's bulb is fixed, and the evaporation temperature
5°C and 10°C (9°F and 18°F). Superheating at the compressor’s inlet must be between 10°C and 15°C
(18°F and 27°F), where in such case it is the difference between the temperature at the surface of the return
pipe, at a distance 150 mm (6") from the compressor, and the evaporation temperature. The sub-cooling in
the condenser shall be between 3°C and 10°C (5°F and 18°F), i.e., the condensing temperature less than
the temperature at the pipe's surface at the condenser's outlet.
(*) Evaporation temperature obtained by converting the suction pressure into temperature.
C. Cleaning the System (in case condensing unit replacement):
• Cleaning the system before installing a new condensing unit is mandatory to completely remove residues and
other contaminants.
• The manufacturer recommends the installation of a filter-dryer at the suction line during the cleaning operation
to retain and filter any undesired particles
• It is recommended to make the joints by braze-welding
D. Welding operations:
• While welding keep nitrogen (N2) circulating into the pipes with a pressure between 1 and 2 psig (equivalent
to 1.08 - 1.15 bar): this will prevent oxidations and scale forming, hence ensuring that the piping is free from
any contaminants (oil, grease, oxides).
• Use a damp cloth when welding valves or fittings or pipes to prevent the components overheatingbecause of
the heat propagation.
• The compressor and the filter- dryer are extremely susceptible to humidity. As such, they shall only be opened
during installation or replacement phases. In case of opening, do not leave them exposed to air for more than
10 min.
(*)) shall be between
DOC NUMBER 595R495 23
SERVICE MANUAL Blast Chiller Freezer 100 - 200
E. Leakage test
• During the system leakage tests, never pressurize the pipes using air, oxygen or acetylene. There is a poten-
tial risk of fire and/or explosion.
• After the installation is finished, pressurize the system using nitrogen and/or a small refrigerant charge up to
100 psig (equivalent to 7,8 bar); never use pressures higher than 150 psig (equivalent to 11.35 bar) for preventing the low-pressure switch damage.
.
(Figure 2) Leakage tests with soapy water bubbles
• Check for leaks using an electronic detector or a halide detector (torch). An alternative method is to check
leakage with soapy water bubbles (see Figure 2). When all fittings are properly checked, depressurize the
system and go to the next step.
2.6.5 System Evacuation
Warning: Never use the compressor itself to evacuate the system, nor energize the system when it
is under vacuum, as it may cause the compressor be damaged because of short-circuit caused by overload.
To evacuate the system, use a high vacuum pump and a vacuum gage. The system shall be evacuated up to
0,5mmHg (equivalent to 0,0066bar) or less. In any case, at least 20 minutes of vacuum must be applied (see
Figure 3)
Figure 3 – Vaccum operation scheme
Warning: Never use anti-freeze elements (methyl alcohol and derivates), as they cause irreversible
damages to the cooling system.
2.6.6 Procedures for Refrigerant Charge
The refrigerant shall only be charged after the proper vacuum has been achieved. Please check on the compressor or condensing unit tag what is the type of refrigerant that should be used to charge the system. Break the
vacuum only when the compressor is switched off.
DOC NUMBER 595R495 24
SERVICE MANUAL Blast Chiller Freezer 100 - 200
It is recommended that the refrigerant charge be provided in the liquid state (with the compressor switched off),
through the high side (tank liquid valve) and by the refrigerant mass measurement (kg), according to the system
specification.
Wait for 15 minutes before switching on the system again, to allow the gas to be evenly distributed and balance
the pressure levels.
The fine-tuning of the refrigerant charge must be done while the system is running (compressor switched on), by
observing the sight glass. The charge will be complete when there are no more bubbles forming.
When performing a condensing unit replacement always check the specified refrigerant charge.
2.6.7 Piping
Piping shall be sized so that:
It is flexible, to avoid rupture due to expansion and due to the transmission of vibration usually caused by compressors.
Ensure that the refrigerant is well distributed through the evaporator(s), and prevent the liquid from flowing back
to the compressor. To do that, use an expansion valve with proper dimensions, and an inverted siphon at the
outlet of each evaporator.
Figure 4 – Evaporator under the condensing unit
Prevent the liquid from flowing back to the compressor when the system stops and the evaporator(s) is/are located
above the Condensing Unit, using an inverted siphon and suction accumulator (see Figure 4).
Aid the return of lubricating oil coming from the evaporator(s) to the system where the Condensing Unit is located
over 3000 mm above the evaporator(s), using an inverted siphon every 3000 mm in the piping.
Allow secondary operations, such as attaching measurement instruments, isolating stretches for maintenance
purposes and pump down.
Warning: The diameter of the fittings for the condensing units and evaporators shall not be used as
a parameter to select the diameters of the other system components.
Warning: After replacement the condensing unit and its accessories must be handled and recycled
according to the material group (ferrous, non-ferrous, polymers, oils,) directives. These recommendations are intended to minimize the adverse impacts on the environment.
DOC NUMBER 595R495 25
SERVICE MANUAL Blast Chiller Freezer 100 - 200
Suction Accumulator
2.6.8 Basic Accessories of a Cooling System
Filter-Dryer
Installed at the liquid line, its function is to retain particles and mainly remove
residual humidity from the system.
Sight Glass
It is installed at the liquid line, just after the filter -dryer and used to monitor
the system refrigerant charge. Some models also allow humidity detection.
Pressure Control
Some Condensing Units are fitted with High / Low Pressure Switches. Their
function is to prevent the compressor from operating under pressure levels
that are outside of their application range.
Solenoid Valve
It is installed at the liquid line, prior to the expansion valve and used for the
pump down procedure.
Oil Separator
It is installed at the discharge line, when the evaporator is below the compressor's height (long distances)
It is installed at the suction line, just before the compressor. It prevents liquid
refrigerant from flowing back towards the compressor.
Conditions that favor the flow-back of liquid to the compressor and where the
use of a suction accumulator is recommended:
• Systems with more than one evaporator
• High refrigerant charges
• Operations with defrosting by hot gas
• Where the distance from the compressor to the evaporator is over 15 me-
ters (50 feet)
• Evaporator(s) above the condensing unit
Fan Speed Control
DOC NUMBER 595R495 26
The Fan Speed Control controls the head pressure in air-cooled condensers
by reducing the fan speed to maintain head pressure as the outside temperatures/condenser pressure drops. As the motor speed drops under lower ambient/load condition fan noise is also reduced.
SERVICE MANUAL Blast Chiller Freezer 100 - 200
Fuse plug
melt part replace with new one
Schrader Valve
Used for service operation (Refrigerant Charge).
Suction Filter
It is recommended to clean the systems if the compressor has burned out. Installed at the suction line, its main task is to retain the contaminants (result of
the burning of the compressor), and to retain system particles.
A/C systems can include a pressure release valve that is usually mounted at
the compressor or fuse plug mounted on the receiver dryer.The relief valve can
open at a preset pressure and then reclose.The center of the fuse plug melts
to let pressure escape. In case of release the
same capacity.
DOC NUMBER 595R495 27
SERVICE MANUAL Blast Chiller Freezer 100 - 200
2.6.9 Expansion Valve
It is installed at the liquid line, before the evaporator.
Its function is to keep the pressure different between the condenser and the evaporator; it also adjusts the refrigerant flow within the evaporator. For systems operating under low evaporating temperatures (lower than -17.7°C
(0°F), it is recommended using an expansion valve fit with MOP (Maximum Operation Pressure), to protect the
compressor against high pressures during the suction phase at the start of the procedure.
2.6.10 Setting the Expansion valve
The valve is already set from factory in the standard condition and it is suitable for most installations.
If adjustment is needed, it is possible proceeding by means of the expansion valve rod adjustment.
By rotating the rod clockwise, the expansion valve overheat increases, while turning the rod counterclockwise
then it will decrea the overheating
IMPORTANT: Turn the rod maximum 45° each time; wider rotations will provoke flash-gas!
To eliminate evaporator swing, increase overheating by turning the rod clockwise until it stops.
Rotate the rod anticlockwise step by step until the swing will reappear.
From this position, turn the rod 45° clockwise.
When the calibration is done (swing approximately at the average), the refrigerator will no longer swing and the
evaporator can be considered as working at full capacity (see Figure 5).
If overheating in the evaporator is too high, this may be either due to an insufficient refrigerant fluid mass or to a
insufficiend dimension of the thermostatic valve (thermostatic valve not sized correctly).
Note: Variations of the overheating of ± 0.5 ° C are not considered swing.
Figure 5
2.6.11 Correct position of the thermostatic bulb
It is recommended to mount the bulb on a horizontal section of the suction line as close to the evaporator as
possible and in a position corresponding to the watch hands between 1 and 4.
Figure 6
DOC NUMBER 595R495 28
SERVICE MANUAL Blast Chiller Freezer 100 - 200
The position depends on the external diameter of the tube.
When the suction pipe has an outside diameter of 16 mm or less, it can be secured both in the positions (see
Figure7):
a. above the suction line
b. by the side of its own path, in horizontal position
Figure 7
When the tube has a diameter greater than 16 mm, the bulb must be secured beneath the horizontal axis of the
tubing itself to form a 45 ° angle with the same horizontal axis (see Figure 8)
Figure 8
Warning
The bulb must never be mounted at the bottom of the suction line, as it will re-
:
ceive false control pulses due to the oil present at the bottom of the tube itself.
2.6.12 Identification of the thermostatic valve
The thermostatic element is equipped with a laser engraving on the top of the membrane (see Figure 9).
This engraving indicates the type of valve (with the numerical code), the field of evaporation temperature, MOP
point, the refrigerant and the maximum operating pressure and the type of nozzle installed
Figure 9
DOC NUMBER 595R495 29
SERVICE MANUAL Blast Chiller Freezer 100 - 200
2.6.13 Charge MOP
All MOP valves have a very small charge in the bulb.
This means that the valve or the element should be placed in the hottest position of the bulb otherwise a charge
migration may occur from the bulb to the element and the expansion valve will stop working.
The MOP charge has a limited charge in the bulb.
MOP means Maximum Operating Pressure (sometimes called “Motor Overload Protection”) and is the maximum
suction / evaporation pressure allowed in the suction / evaporation line.
The refrigerant liquid will evaporate when the temperature reaches the MOP point. As the suction pressure increases, the expansion valve starts reducing the pressure to 0.3 / 0.4 bar, below the MOP point, until fully closing
when the suction pressure will be equal to the MOP point.
2.6.14 Quantity of refrigerant to charge
The exact quantity of refrigerant to charge (see Figure 10) in the system depends on:
Figure 10
Data plate identification (in case of remote unit the reference are points 2 and 3)
Liquid container receiver (max quantity in kg of refrigerant)
Liquid spy (see Figure 11) on the system.(where present)
Figure 11
COMPLETE OPERATIONS IN SUMMARY - After correct cleaning and vacuum of the system:
a) Start to charge the refrigerant on suction/service pipe on the compressor.
b) Keep the appliance door opened
c) Switched ON the appliance
d) Charge a small amount of refrigerant step by step without freezing the pipe until air bubbles show on liquid spy.
e) Close the door and verify the evaporation pressure.
f) Check the overheating on external pipe of evaporator following the evaporation pressure/temperature
g) Check for presence of swing of pressure due to thermostatic valve (refer to chapter 2.5.10)
h) In case of swings, set the valve or add refrigerant.
Warnings: Do not provoke flash gas!!!!! The pipe must be slightly cooled not frozen!!
DOC NUMBER 595R495 30
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