EPTA GLEE 55 LITE KW User manual

SERVICE MANUAL GLEE 55 KW (short version) inglese
Autori: Serralunga M.
11/11/2022
1
NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT
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GLEE 55 LITE KW
Service Manual
COQ
Project:
GLEE55LITEKWServiceManual(shortversion)

SERVICE MANUAL GLEE 55 KW (short version) inglese
Autori: Serralunga M. 11/11/2022
2
NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT
TABLE OF CONTENTS
1. AMOUNT OF REFRIGERANT IN THE EQUIPMENT 3
2. REFRIGERATION SCHEMATICS FOR THE EQUIPMENT 4
2.1. REFRIGERATION DIAGRAM 4
2.2. REFRIGERATION DIAGRAM FOR DEFROST CYRCLE 5
2.3. VIEW OF MOTOR COMPARTMENT 6
2.4. VIEW OF THE EVAPORATOR COMPARTMENT 8
3. POSITION OF PROBE IN THE CABINET 9
4. ALARMS FOR MULTIFREEZ PLUS (Danfoss Controller) 10
5.REPLACEMENTOFCOMPONENTS 10
5.1. SAFE OPERATING PROCEDURES FOR REFRIGERAION UNIT USING R290 10
5.2. PROTECTION TOOLS AND DEVICES FOR SERVICEMENT 11
5.3. HOW TO EMPTY THE COOLING CIRCUIT AND PROVE IT BEFORE SERVICING 14
5.4. COMPRESSOR REPLACEMENT 15
5.5. UNSOLDER COPPER PIPE TUBE 15
5.6.COMPRESSORREMOVING 16
5.7. NEW COMPRESSOR INSERTION 16
5.8. HIGH PRESSURE PIPE CLOSING 17
5.9. REFRIGERANT GAS CHARGING AND THERMODYNAMIC CIRCUIT CLOSING 18
5.10. CHECK THE CORRECT CLOSING OF THERMODYNAMIC CIRCUIT 21
5.11. REPLACEMENT OF CONDENSER MOTOR FAN 22
5.12. REPLACEMENT OF EVAPORATOR MOTOR FAN 22
5.13. REPLACEMENT OF SOLENOID VAVE 23
5.14. REPLACEMENT OF ELECTRONIC CONTROLLER 24
5.15. REPLACEMENT OF LED BAR 25
5.16.DOORREPLACEMENT 25
6. MAIN CABINET FUNCTIONS 28
6.1. DISPLAY UNIT AND MAIN PARAMETERS 28
6.2.USEOFLEDS 28
6.3. TEMPERATURE SETTING 29
6.4. REFRIGERATOR SHUTDOWN 29
6.5. CHANGE FAHRENHEIT SETTING TO CELSIUS 29
6.6. CHANGE LOW AND HIGH TEMPERATURE PARAMETER ALARM 29
6.7. ELECTRONIC CONTROLLER PARAMETERS 30
7.WIRINGDIAGRAM 33
7.1.WIRINGDIAGRAM 33
7.2. WIRING DIAGRAM LEGEND 34

SERVICE MANUAL GLEE 55 KW (short version) inglese
Autori: Serralunga M.
11/11/2022
3
NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT
1. AMOUNT OF REFRIGERANT IN THE EQUIPMENT
The most prominent feature of the GLEE 55 LITE V2 KW versions is that they use a natural gas:
propane (R290).
MODEL
AMOUNT OF
PROPANE*
[
g
rams] / [Ounce] 
GLEE 55 LITE V2 KW
138 / 4,87
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(*) The propane refrigerant R290 to be used must be technical-gas rated, with purity grade above 99,5%.
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PROPANE IS HEAVIER THAN AIR, WHICH MEANS THAT IT WILL
TEND TO CONCENTRATE NEAR THE FLOOR OF THE ROOM.
The flammability limit percentage (in a volume of air) is between 2,2% and 9,2% (at 25°C and 1bar).
In mass terms:
If the entire amount of refrigerant is released in the food compartment of VALZER KW, this would become
a flammable zone.
39g/m3177
g
/m3
Striking will not cause
flames Striking will not cause
flames
0% Striking will not cause
flames
100%

SERVICE MANUAL GLEE 55 KW (short version) inglese
Autori: Serralunga M. 11/11/2022
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NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT
2. REFRIGERATION SCHEMATICS FOR THE EQUIPMENT
2.1 REFRIGERATION DIAGRAM FOR THE COOLING CYCLE
The compressor runs warm gas through evaporating tray, condenser and frame pipe.
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Point into which
nitrogen needs to be
blown to remove
propane from the
pipework.

SERVICE MANUAL GLEE 55 KW (short version) inglese
Autori: Serralunga M. 11/11/2022
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NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT
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2.2 REFRIGERATION DIAGRAM FOR THE DEFROST CYCLE
The NC solenoid valve opens and allow gas to run through the drip tray serpentine and then into the
evaporator.
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Point into which
nitrogen needs to be
blown to remove
propane from the
pipework.
Point into which
nitrogen needs to be
blown to remove
propane from the
pipework.
Point into which
nitrogen needs to be
blown to remove
propane from the
pipework.

SERVICE MANUAL GLEE 55 KW (short version) inglese
Autori: Serralunga M. 11/11/2022
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NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT
2.3 VIEW OF THE MOTOR COMPARTMENT AND RELEVANT PIPEWORK
VIEW OF MOTOR COMPARTMENT – FRONT SIDE
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VIEW OF MOTOR COMPARTMENT – REAR SIDE
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CONDENSER MOTOR
FAN
EVAPORATING WATER
TRAY
CONDENSERS
DRIP TRAY
SERPENTINE
SERVICE TUBE SOLENOID VALVE
FRAME HEATING PIPE SUCTION PIPE –
EVAPORATOR OUTLET
COMPRESSOR
FILTER DRYER
TRANSFORMER

SERVICE MANUAL GLEE 55 KW (short version) inglese
Autori: Serralunga M. 11/11/2022
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NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT
VIEW OF MOTOR COMPARTMENT – MOTOR HOUSING
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SERVICE TUBE
COMPRESSOR
VACUUM TUBE
SOLENOID VALVE
EVAPORATING WATER
TRAY
CONDENSER
CONDENSER MOTOR
FAN
COMPRESSOR –
SUCTION PIPE
FRAME HEATING PIPE
- CONDENSER
TRANSFORMER

SERVICE MANUAL GLEE 55 KW (short version) inglese
Autori: Serralunga M. 11/11/2022
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NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT
2.4 VIEW OF THE EVAPORATOR COMPARTMENT AND RELEVANT
PIPEWORK
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DRIP TRAY
SERPENTINE
DRIP TRAY SEPRENTINE –
SOLENOID VALVE
SUCTION PIPE –
EVAPORATOR OUTLET
CAPILLARY –
EVAPORATOR INPUT
DEFROST PROBE

SERVICE MANUAL GLEE 55 KW (short version) inglese
Autori: Serralunga M. 11/11/2022
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NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT
3. POSITION OF PROBES IN THE CABINET
There are two probes in GLEE 55 LITE V2
Front view:
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Model Position of
probe
Probe
Colour Function Probe Epta code
GLEE 55 LITE V2
KW
Evaporator
Tank
Yellow
Gray
Defrost end
Display - Thermostat
55883032
55883031
Defrost probe on evaporator
outlet tube
(y
ellow
)
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Temperature probe on fans carter
(grey)

SERVICE MANUAL GLEE 55 KW (short version) inglese
Autori: Serralunga M.
11/11/2022
10
NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT
4. ALARMS (DANFOSS Controller)
ALARM CAUSE OUTPUTS
“Hi” High temperature alarm Blink “Hi” with the Highes temperature; if
configured: cut In alarm relay,beep the buzzer.
“Lo” Low Temperature alarm Blink "Lo" with the lowest temperature. lf
configured: cut in alarm relay, beep the buzzer.
“Con”
Condenser alarm Blink "Con". lf configured: cut in alarm relay, beep
the buuer.
“dor”
Door open alarm Blink "dor". lf configured: cut in alarm relay, beep
the buuer.
5. REPLACEMENT OF COMPONENTS AND REPAIR OF A LEAK
The instructions below, which involve opening the refrigerating circuit, must be performed in a
place with sufficient air circulation and not in the sales area.
5.1 SAFE OPERATING PROCEDURES FOR REFRIGERATION UNITS
USING R290
Before carrying out any kind of maintenance operation on the refrigerator, make sure that the
machine is disconnected from power (unplugged).
R290 (Propane CH3CH2CH3) is a flammable natural refrigerant (Hydrocarbon HC) having
lower explosive limit ( LEL %V/V) = 1.7.
The very low quantity of refrigerant used and the safe design (possible ignition sources far
from the potential explosive areas) make this unit totally safe in use. Caution must be used
during servicing and with this respect it is essential to understand the basic concept of
flammability.
Three ingredients are needed for a fire: a fuel at the right concentration, a supply of oxygen
(normally from air) and a source of ignition. The common way of illustrating this is by means
of the fire triangle.
Eliminating at least one but preferably two of these ingredients fire can be prevented.
In order to achieve this, three general guidelines should be followed during servicing:
F1. Containment of the substance;
F2. Avoidance of ignition sources;
F3. Use of ventilation.