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SERVICE MANUAL EIS 165.3 N/P KW (short version) inglese 

Autori: Serralunga M. 

 

14/10/2021 

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 EIS 165.3 N/P KW versions is that they use a natural gas: propane 
(R290). 

 

MODEL 

AMOUNT OF 

PROPANE* 

[grams]

 

 

EIS 165.3 N/P KW 

270 

 

(*) The propane refrigerant R290 to be used must be technical-gas rated, with purity grade above 99,5%. 

 

 

 

 

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 chest of a EIS 165.3 N/P KW, this would be a 
flammability zone event. 

 
 

 

39g/m

3

 

177g/m

3

 

Striking will not cause 

flames 

Striking will not cause 

flames 

0% 

Striking will not cause 

flames

100% 

Содержание EIS 165.3 N/P KW

Страница 1: ...N P KW short version inglese Autori Serralunga M 14 10 2021 1 NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT EIS 165 3 N P KW Service Manual COQ EIS 165 3 N P KW Servi...

Страница 2: ...GERANT GAS CHARGING AND THERMODYNAMIC CIRCUIT CLOSING 18 5 10 CHECK THE CORRECT CLOSING OF THERMODYNAMIC CIRCUIT 20 5 11 REPLACEMENT OF CONDENSER MOTOR FAN 21 5 12 REPLACEMENT OF EVAPORATOR MOTOR FAN...

Страница 3: ...N P KW 270 The propane refrigerant R290 to be used must be technical gas rated with purity grade above 99 5 PROPANE IS HEAVIER THAN AIR WHICH MEANS THAT IT WILL TEND TO CONCENTRATE NEAR THE FLOOR OF T...

Страница 4: ...N ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT 2 REFRIGERATION SCHEMATICS FOR THE EQUIPMENT 2 1 REFRIGERATION DIAGRAM FOR THE COOLING CYCLE EIS 165 3 N P KW GROUP 1 LEFT SIDE REFRI...

Страница 5: ...inglese Autori Serralunga M 14 10 2021 5 NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT GROUP 2 CENTRAL SIDE REFRIGERANT CHARGE 140 g Point into which nitrogen needs to...

Страница 6: ...a M 14 10 2021 6 NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT 2 2 REFRIGERATION DIAGRAM FOR THE DEFROST CYCLE EIS 165 3 N P KW The open solenoid valve runs gas throug...

Страница 7: ...SERVICE MANUAL EIS 165 3 N P KW short version inglese Autori Serralunga M 14 10 2021 7 NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT GROUP 2...

Страница 8: ...VIEW OF THE MOTOR COMPARTMENT AND RELEVANT PIPEWORK EIS 165 3 N P KW VIEW OF MOTOR COMPARTMENT FRONT SIDE VIEW OF MOTOR COMPARTMENT REAR SIDE CONDENSER MOTOR FAN CONDENSER MOTOR FAN DISCHARGE LINE COM...

Страница 9: ...E CABINET There are two probes in the EIS 165 N P KW model Model Position of probe Probe Colour Function Probe Epta code EIS 165 N P KW Evaporator Tank motor compartment Yellow Grey Defrost Display Th...

Страница 10: ...e 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...

Страница 11: ...will mean that any vapor arising from a leak or a release will be rapidly dispersed In case one of the components of the refrigerating hermetic circuit compressor dryer condenser evaporator capillary...

Страница 12: ...PYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT Devices for servicemen LOW PRESSURE SUCTION GAUGE REFRIGERANT PINCH OFF TOOL ELECTRONIC LEAK DETECTOR REFRIGERAT JUNCTIONS LOC...

Страница 13: ...P KW short version inglese Autori Serralunga M 14 10 2021 13 NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT REFRIGERANT SCALE VACUUM PUMP LOKPREP SEALANT ORBITAL CUTTE...

Страница 14: ...opened by using an orbital cutter C Cut the capillary tube D exiting the filter dryer When the inside pressure is equalized with the ambient pressure blow nitrogen at 10 bars in the circuit through t...

Страница 15: ...R COPPER PIPE TUBE After being that no more refrigerant gas is inside the thermodynamic circuit unsolder from compressor the charge pipe A the suction pipe 1 and the discharge pipe 2 EIS 165 3 N P KW...

Страница 16: ...er inlet When the circuit is closed charge the circuit with helium nitrogen up to a pressure of 8 bar Close the circuit to hold the pressure in then search for circuit leaks using a leak detector Adju...

Страница 17: ...RM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT Put a drop of Lokprep sealant 4 on the high pressure pipe B Insert lockring joint 5 on the high pressure pipe B Rotate the joint 5 for correc...

Страница 18: ...the quantity of refrigerant gas in the gas bottle 8 REFRIGERNAT CHARGE Lateral Side Circuit Refrigerant Charge 130 g Central Side Circuit Refrigerant Charge 140 g Disconnect the vacuum machine from t...

Страница 19: ...UT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT Take the plier 3 and pinch the low pressure pipe A then remove refrigerant junction Put a drop of Lokprep sealant 4 on the low pressure pipe A Insert...

Страница 20: ...NAGEMENT By using the lockring plier 6 fix joint 5 on the copper pipe A 5 10 CHECK THE CORRECT CLOSING OF THERMODYNAMIC CIRCUIT Use the electronic leak detector 9 in order to check if leak of gas are...

Страница 21: ...g wires from cable ties Remove the hexagonal head screw marked in figure extract the motor fan from compressor compartment unscrew the hexagonal head screw fixing the motor fan blade and remove the sc...

Страница 22: ...T OF POWER CORD 5 14 REPLACEMENT OF SOLENOID VALVE 1 Disconnect the valve connector 2 By using the screwdriver remove the valve coil 3 Unscrew the solenoid valve 4 Unsolder and replace the mechanic fi...

Страница 23: ...onic controller 5 16 REPLACEMENT OF LED BARS ELECTRONIC BALLAST LED BARS 5 17 REPLACEMENT OF TEMPERATURE SWITCH 1 Unscrew and remove upper command panel 2 Disconnect and remove the temperature switch...

Страница 24: ...ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT 5 18 REPLACEMENT OF TEMPERATURE YELLOW LIGHTS 1 Unscrew and remove upper command panel 2 Disconnect and remove the temperature light 5...

Страница 25: ...sion inglese Autori Serralunga M 14 10 2021 25 NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT 3 Unscrew the front grid 4 Open the fasteners and disconnect the connector...

Страница 26: ...26 NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT 6 Unscrew and remove the electric components panel WARNING Pay utmost attention during next steps so as avoid the fal...

Страница 27: ...a M 14 10 2021 27 NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT 9 Remove the door and the heater wires from the lower support 10 Insert the wires into the lower frame...

Страница 28: ...NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT 12 Screw the door hinge screw use the same screw previously removed 13 Insert and screw the upper door support use the s...

Страница 29: ...alunga M 14 10 2021 29 NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT 15 Connect the connectors 16 Insert and fix all component previously removed 17 Remove the magneti...

Страница 30: ...a M 14 10 2021 30 NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT 5 20 REPLACEMENT OF PROBS Position of probe Probe Colour Probe Epta code Evaporator Tank motor compartm...

Страница 31: ...lese Autori Serralunga M 14 10 2021 31 NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT 5 21 REPLACEMENT OF DEFROST HEATER 5 22 REPLACEMENT OF DOOR HANDLE Remove Remove D...

Страница 32: ...OM EPTA QUALITY MANAGEMENT 5 23 REPLACEMENT OF FEET CASTORS Epta code 57185000 Model Adjustable feet 150mm 60 Epta code 57185000 Model Adjustable feet 12MAX100 Epta code I0402003 Model Pirouette wheel...

Страница 33: ...EIS 165 3 N P KW short version inglese Autori Serralunga M 14 10 2021 33 NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT 5 24 REPLACEMENT OF SHELF RACK Unscrew Unscrew U...

Страница 34: ...y on ON Measurement unit FLASHING Programming phase 6 3 HOW TO CHANGE A PARAMETER VALUE To change any parameter operate as follows 1 Enter the Programming mode by pressing both SET DOWN keys for 3 sec...

Страница 35: ...SERVICE MANUAL EIS 165 3 N P KW short version inglese Autori Serralunga M 14 10 2021 35 NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT 6 4 EIS 165 3 N P KW PARAMETERS...

Страница 36: ...he appropriate pre established temperature inside the tank This temperature adjuster is gauged by the factory and should not be touched by the user Only if the average internal temperature is too cold...

Страница 37: ...IG GENERAL SWITCH IDT POSITIVE TEMP RANGE SWITCH INV INV1 INVERTER IP IP1 IP2 EVAPORATOR MOTOR FAN SWITCH LDV INNER TANK LED LIGHT LPS LOD POWER SUPPLY MC MC1 CONDENSING MOTOR FAN MI EVAPORATOR MOTOR...

Страница 38: ...SERVICE MANUAL EIS 165 3 N P KW short version inglese Autori Serralunga M 14 10 2021 38 NO COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT 7 2 WIRING DIAGRAM...

Страница 39: ...MISSION FROM EPTA QUALITY MANAGEMENT 8 COMMON PROBLEM AND TROUBLESHOOTING 8 1 UNIT NOT IN TEMPERATURE Check controller display temperature icons and possible alarms Check compressor and inverter conne...

Страница 40: ...UALITY MANAGEMENT Check evaporator status if iced up the unit must be emptied switched off and completely defrosted check controller parameters probes and door gaskets status Check condenser status if...

Страница 41: ...OISY UNIT Check presence of abnormal objects touching fans blades both on evaporator and motor side Check presence of abnormal objects touching fans blades both on evaporator and motor side Check inte...

Страница 42: ...O COPYING IN ANY FORM WITHOUT WRITTEN PERMISSION FROM EPTA QUALITY MANAGEMENT Check doors closing system and gaskets status Check water drainage components defrost tray discharge and discharge heater...

Страница 43: ...MANAGEMENT 8 4 POSSIBLE PROBLEMS AFTER CIRCUIT REWORKS Incorrect gas charge symptoms insufficient quantity cold condenser unit not in temperature or slow to pull down excessive quantity iced return li...

Страница 44: ...stops Temperature too high at inverter Check air stream from fan Must be 3m sec Load too high at Compressor Condenser too hot Line Voltage too low Line voltage below 80Vac Signal lost from temperatur...

Страница 45: ...or defect Hardware failure replace unit 7 Input signal failure Input frequency out of range Frequency signal either distorted or above 200Hz Main Error Sub Error Reason Supply voltage low 105N4710 Sup...

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