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Summary of Contents for Gram COMPACT 220
- Page 1 Service manual COMPACT 220/320/420 Item number: 765042425 Release date: Released by: JABP Revision date: Revision no.: 0000 Gram Commercial (CVR-nr. 41423986) Aage Grams Vej 1 6500 Vojens, Denmark ...
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Page 2: Table Of Contents
Content Scope of this service manual...................................... 3 Introduction to this manual ...................................... 3 Intended use ............................................ 4 Safety information ........................................... 4 Location ............................................ 5 Optimizing the energy consumption .................................... 7 General description ......................................... 8 Refrigerant / GWP ........................................... 8 Climate / temperature class...................................... 9 Electrical connection ........................................ 9 General use ............................................ 10 Operating the product ........................................ 11 Keylock ............................................ 12 Adjusting the cabinet temperature .................................... 12 Setting temperature alarm parameters .................................. 13 Temperature alarms ........................................ 14 Messages and alarms shown in the display ................................... 15 Defrosting ............................................ 15 Defrost water .......................................... 16 Reversing the door ......................................... 16 Light – glass door ........................................... 17 Cleaning ............................................ 17 Door gaskets .......................................... 17 ... -
Page 3: Scope Of This Service Manual
This service manual is made in order to aid service technicians when servicing and troubleshooting on the Gram Compact product range, and in particular related to the electrical controller (GCC). The service manual is not intended to be handed to end-users, since unintended changes of settings potentially can cause situations where the temperature inside the cabinet cannot be kept as intended, (high foodstuff temperatures can occur if wrong adjustments are made). -
Page 4: Intended Use
If these instructions are not observed, the product might be damaged or destroyed. Be aware that Gram Commercial has taken precautions to ensure that the safety of the product is in order. Please read carefully the following information regarding safety. -
Page 5: Location
COMPACT 220 with skids/small wheels: The cabinet can be lifted off the pallet (see Fig.1). COMPACT 220/320/420 with castors or legs: The cabinet is tilted slightly backward, and the front part of the pallet can be removed. Then the cabinet is tilted slightly forward, and the rear part can be removed. (see Fig.2) This task requires at least 2 persons. - Page 6 Clean the product with a mild soap solution before use. The set-up place must be level and horizontal. For versions with legs, use the adjustable legs to make sure that the product stands level and upright, see Fig.3. For versions with castors, the locking devices of the two front castors must be activated, when the product is in place, see Fig.3.
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Page 7: Optimizing The Energy Consumption
The cabinet can be installed freestanding, against a wall or COMPACT 220 can be built under a worktop. The cabinet must have sufficient ventilation and free air circulation beneath, above and behind the cabinet. -
Page 8: General Description
General description Gram Commercial A/S, Denmark Made in DK. CVR nr. 12 00 66 32 Condenser Input: 230 V 50 Hz 231 W 1,29 A Main supply inlet Type BAKER M 625 CCG 20B Defrost 360 w Display Part No 966250101... -
Page 9: Climate / Temperature Class
Climate / temperature class Products are tested according to the following climate and temperature classes. Information about the product’s climate and temperature class can be found at the name plate (see fig.12) Temperature Climate class class 25°C / 60 % RH -18°C 30°C / 55 % RH +5°C... -
Page 10: General Use
Always disconnect the power if interruptions in power supply occur, and when electrical parts are removed/put on, and before cleaning and maintenance of the product. Repairing of electrical/technical parts may only be performed by properly skilled technicians with proper knowledge of the product. Do not use the product before all coverings are installed, so that live or rotating machine parts cannot be touched. -
Page 11: Operating The Product
To ensure correct and efficient air flow in the product, the shaded areas and the area above the top load line must be kept free of items. (see Fig. 7) Do not place products below the bottom shelf support. Fig. 7 ... -
Page 12: Keylock
During a short boot sequence, all light segments in the display are lit. After that the controller does start up in normal operation mode. This does mean that the refrigeration system will work to reach and maintain the factory adjusted default set temperature: For refrigerators (K and KG-models) this set point is 5°C (adjustable from 2 to 12°C) For freezers (F and FG-models) this set point is -18°C (adjustable from -10 to -22°C) -
Page 13: Setting Temperature Alarm Parameters
Push to change the temperature set point. The new set point temperature is confirmed/saved by pushing once. The display returns to normal operation. To exit without change push once, or do not touch any key for 60 seconds After power failure the controller returns to stored settings. ... -
Page 14: Temperature Alarms
Temperature alarms The following temperature alarms can be displayed: Alarm high temperature Alarm Low temperature If an alarm occur, Ah or AL will be shown alternating with the current temperature. If the temperature gets back within the accepted limits, the current temperature will be shown in the display and will remain lit until the alarm has been reset. -
Page 15: Messages And Alarms Shown In The Display
Resetting alarm symbol Look through all non-present alarms, after each alarm Push to verify having seen the alarm. To exit an alarm without verifying, push . Once all alarms have been verified, will turn off, unless there is a present alarm. Push , to leave alarm log. -
Page 16: Defrost Water
Defrost water The cabinet produces water during defrosting, which is led into a tray in the compressor compartment (see Fig.6). A re-evaporation pipe from the refrigeration system, placed in the tray, re-evaporates the water It is recommended to clean the tray and water trap when necessary - at least once a year. Remember to disconnect the cabinet before cleaning. -
Page 17: Light - Glass Door
Models with glass door: The door should only be reversed by a properly skilled service technician with knowledge of the product. Light – glass door The light in the glass door, can be switched to work in two different ways. Light constantly on (Lco) or light off when door closed (Ldo). -
Page 18: Long Term Storage
Long term storage If the product is taken out of operation, and need to be prepared for long-term storage, clean the inside compartment, the door and door gasket thoroughly with a hot soapy damp cloth. Eventual remnants of food do create mold. It is advisable to leave the cabinet door open during long term storage, in order to minimize the risk of bad smell and the building of mold inside the cabinet. -
Page 19: Entering/Adjusting Factory Default Parameter Settings
Entering/adjusting factory default parameter settings This part of the manual should not be handed to anyone outside the Gram/Hoshizaki organisation, unless it is necessary. Prior to entering the controller for whatever reason, it is important to make sure that the controller keys are not locked. -
Page 20: Parameters And Default Settings
Parameters and default settings Setting Setting Adjustment Default Default Default Default Relation Parameter name Unit Range Group name resolution SYSTEM Default setpoint ° S2 to S3 SYSTEM Minimum limit for SP setting ° -30 to S3 SYSTEM Maximum limit for SP setting °... - Page 21 Setting Setting Adjustment Default Default Default Default Relation Parameter name Unit Range Group name resolution K KG F FG DEF d 4, 6, 8 or DEF d1 Defrosting interval Hours ‐ 6 6 6 ...
- Page 22 Setting Setting Adjustment Default Default Default Default Relation Group name Parameter name Unit Range resolution K KG F FG FAN F Fan activity during normal operation (compressor on) FAN F0 0 = Switched on NUMERIC 0 to 1 N/A 1 1 ...
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Page 23: Test Of Inputs / Outputs
Test of inputs / outputs In order to ease the trouble shooting for the field engineer, the different inputs and outputs can be forced on and off manually. Doing so makes it possible to force an output on, in order to measure if the different components are powered. -
Page 24: How To Physically Access The Controller
By testing rE1 (the compressor output) and at the same time measuring at the compressor connections using a voltmeter, it can easily be determined if there is 230 Volt on the compressor inlet. The 12V DC Fan (current draw approx. 350 mA), the 230V defrost heater (current draw approx. 440mA) and the drip water heater (current draw approx. -
Page 25: How To Boot The Correct Software On A Spare Part Controller
How to boot the correct software on a spare part controller If making sure that the controller does have a fault, which can be clearly identified e.g the controller not being able to switch the compressor on/off when using the test of inputs and outputs, and all connections are correct, it can be necessary to replace the controller. -
Page 26: Controller Layout And Description
Controller layout and description ... -
Page 27: Reversing The Glassdoor
Reversing the glassdoor When changing the glass door from a right version to a left version, the self closing device and the bronze bushing hinge must change position. Inside the frame behind the self close device is the LED light cord. This must be pulled out and now go through the bronze bushing. -
Page 28: Ec-Declaration Of Conformity
DS/EN ISO 22041:2019 – Refrigerated storage cabinets and counters for professional use. Performance and energy consumption Person Company: Gram Commercial (CVR-nr. 41423986) responsible for Address: Aage Grams Vej 1 technical dossier Name: John Lund... -
Page 29: Wiring Diagram - K 220/320/420
Wiring diagram – K 220/320/420 ... -
Page 30: Wiring Diagram - Kg 220/320/420
Wiring diagram – KG 220/320/420 ... -
Page 31: Wiring Diagram - F 220/320/420
Wiring diagram – F 220/320/420 ... -
Page 32: Wiring Diagram - Fg 220
Wiring diagram – FG 220 ... -
Page 33: Piping Diagram
Piping diagram K/KG 220/320/420 F/FG 220/320/420 Kompressor Compressor Kompressor Kondensator Condenser Verflüssiger Tørrefilter Filter drier Trockenfilter Varmeudveksler Heat exchanger Wärmeaustauscher Fordamper Evaporator Verdampfer ...
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