Table of Contents
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Table of Contents
Related Manuals for Gram Eco Plus U 70
Summary of Contents for Gram Eco Plus U 70
- Page 1 GRAM CO storage refrigerator and freezer cabinets IC (integrated controller) Danfoss controller (AKCC550A) Carel Controller (MPXpro) NC (No controller) controller chosen and fitted by external technician Installation- and service manual 765042411 Rev. 000...
- Page 2 Gram Commercial A/S Aage Grams Vej 1 6500 Vojens +45 73 20 12 00 www.gram-commercial.com...
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Page 3: Table Of Contents
Contents Intended use ......................3 Location ........................4 General description ....................6 Electrical connection ....................7 How to connect the IC product to the CO system ..........8 Connection diagrams for CO cabinets ..............12 How to operate the product ................... 17 Operating the product (Danfoss Controller AKCC 550A) ........ -
Page 4: Intended Use
English Thank you for choosing a Gram Commercial CO product. This manual is made to aid the following: • The installer when integrating the Gram CO product into a remote CO installation. • The service technician when servicing the cabinet. -
Page 5: Location
Location When receiving the product, check the packaging material for damage. If any damage occurs at the packaging material, it should be considered if the product might have been damaged too. If the damage is substantial, please contact your dealer. The transport pallet can be removed by loosening the screws that fasten the pallet to the product (see the below illustration). - Page 6 The set-up place must be level and horizontal. It is very important to adjust the legs of the cabinet in order to make sure that the product stands level and upright. In order to avoid tensions in the cabinet construction, it is crucial to make sure that all legs make proper contact with the floor, so that the stress to the cabinet is distributed evenly.
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Page 7: General Description
General description Front panel Display Gasket Air intake Door Air distribution plate Shelves for storage Pedal door opener... -
Page 8: Electrical Connection
As a minimum, servicing and troubleshooting must be carried out by a skilled service technician knowing the installed controller and experienced in servicing a CO cabinet. Gram Commercial A/S Aage Grams Vej 1, 6500 Vojens Denmark CVR nr. 12 00 66 32 Type... -
Page 9: How To Connect The Ic Product To The Co System
How to connect the IC product to the CO system These products have been designed, constructed and built to minimize the time which the installer must use – installation. On cabinets referred to as IC, with a built- before and after connecting them to the remote CO in controller (either Danfoss AKCC 550A or Carel MPXpro), every electrical component is already connected to the controller and the controller is configured accordingly. - Page 10 On PLUS, TWIN and EURO products the pipe ends for connecting to a remote system are in the top compartment (shown on the below fig. 1 – 3). Both pipes are clearly marked in order to avoid connecting the cabinet wrongly. Both connection pipes coming out of the cabinet are 3/8”. The pressure transmitter, which must be connected to the suction line, by the installer, is lying in the top compartment.
- Page 11 Fig. 4 Rear view showing pipe connections on ECO MIDI cabinets Drain water on MIDI products These cabinets are delivered with a re-evaporation tray with an electrical heater (60 Watt) and a float switch which does control the operation of the heater related to water level inside the tray. This system is positioned inside the bottom compartment of the cabinet on the right side seen from the front.
- Page 12 IMPORTANT! People installing these products, should have the right skill level. This does relate to all aspects. (physical installation as well as adapting the controller settings of the chosen controller, in order to avoid problems or potentially dangerous situations) Always make sure that the cabinet is properly leveled when positioned on the installation location. This should be done prior to connecting the pipe work to the remote CO system.
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Page 13: Connection Diagrams For Co Cabinets
As a minimum the re-evaporation system must must not be connected to power in the controller box. Connection diagrams for CO cabinets In order to ease the planning/positioning of pipe work, external drain work and electrical installations related to installing the Gram CO products, the drawings on the next four pages have been created. - Page 14 PLUS...
- Page 15 TWIN...
- Page 16 EURO...
- Page 17 MIDI...
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Page 18: How To Operate The Product
In terms of knowing the Gram factory settings which have been made to the controller installed, the following appendixes have been added at the end of this document (see table of contents) •... - Page 19 = Inside fan running (when this LED is lid, the internal fan is on) If all three LEDs are flashing, this is an indication for an ongoing alarm or error. The 3 buttons placed on the right side of the display read-out, are used to access and adjust different parameters.
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Page 20: Errors And Alarms
• Push the upper or the lower button until r12 is displayed. • Push the centre button. • Push the lower or the upper button in order to switch between the settings 0 and 1 (-1 is only for service). o Setting 0 means the cabinet is OFF. -
Page 21: User Menu
User menu User menu overview: For information on user menu please see manual over the selected CO2 controller... -
Page 22: Operating The Product (Carel Mpxpro Controller)
Operating the product (Carel MPXpro controller) Starting up Plug in the appliance Default setting of the cabinet controller is that it is delivered turned on. This means that the controller will start regulating, when power supply is connected, and the main switch is in the on position. - Page 23 Buttons: The 4 buttons placed on the right side of the display, are used to access and adjust different parameters. These buttons can be pressed alone or in combination in order to operate the controller. The below explained settings are the only once which should be changed by the end user. The end user should not modify any parameters which are not explained here.
- Page 24 Setting the temperature alarm limits • Press and hold Prg/mute for more than 5 sec. during normal operation, in order to open the parameter list. The display will show /c1 • . The first category of parameters, “Pro”, is shown Press Prg/mute •...
- Page 25 In order to create temperature alarm thresholds and alarm delay time suitable for a refrigerator or a freezer the below alarm setting examples can be suggested: Setpoint Refrigerator +5°C +1°C 8°C 120 minutes Freezer -18°C -50°C -15°C 120 minutes How to display the alarm log •...
- Page 26 How to display the HA and HF alarms • Press Prg/mute and DOWN simultaneously • Scroll the list of alarms pressing UP and DOWN • Press Set to select the required alarm • Use UP or DOWN to see the description of the alarm: year, month, day, hours, minutes and duration in minutes of the selected alarm •...
- Page 27 Cabinet light On all cabinets, besides the MIDI glass door cabinets with internal light, the cabinet light is placed on the cabinet outside, above the door. This light is operated by the main controller in co-operation with the door input. When the cabinet door is opened the light above the door is turned on.
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Page 28: Errors And Alarms
Appendix: Additional settings for the technician: On the last pages of this manual the Gram settings for the MPXpro can be found. For information on additional menus and settings please look in the manual related to the selected CO2 controller... -
Page 29: Troubleshooting
Troubleshooting Noise: • If abnormal noise occurs, request service assistance. • Operating sounds due to air distribution from the interior/evaporator fan are normal. • If sheet metal parts, front panels or panels in front of the “compressor” compartment are noisy due to vibrations, these might be open. Close the panels. Frosting inside compartment: •... -
Page 30: Some Of The Food Is Frozen
Some of the food is frozen: • Cabinet too packed with foods - air inlet/outlet blocked. • Temperature set point adjusted too low. • Evaporator fan might be defective. Condensation around the door: • Ambient humidity too high. • The door is not closed tightly. •... -
Page 31: Defrost Water
Do not use sharp or pointed objects to accelerate the defrosting process. Defrost water PLUS/TWIN/EURO cabinets The product produces water during defrosting, which is led into a defrost water pipe going to the rear bottom of the cabinet. The cabinet is mounted with a re-evaporation tray, with a heating element underneath the cabinet as a standard. -
Page 32: Cleaning
Cleaning Insufficient cleaning will cause the product not to work at optimum performance, or eventually it can result in a higher failure rate. Before cleaning, the product main power supply should always be disconnected. Do not flush the product with water, do not use water jet or steam hose as this may cause short-circuits in the electrical system. -
Page 33: Service
If this is not possible the minimum of needed info is the cabinet type and the serial number (S/N). This information is stated on the name plate, see Fig. 8. Location of the name plate: Gram Commercial A/S Aage Grams Vej 1, 6500 Vojens Denmark CVR nr. 12 00 66 32... -
Page 34: Wiring Diagrams Danfoss Akcc 550A
Wiring diagrams Danfoss AKCC 550A... -
Page 41: Wiring Diagrams Carel Mpxpro
Wiring diagrams Carel MPXpro... -
Page 48: Wiring Diagrams - No Controller
Wiring diagrams – no controller... -
Page 55: Piping Diagrams
Gram Commercial A/S VOJENS DENMARK All rights to this drawing belongs to Gram Commercial A/S, cf. law of Copyright. Thus the drawing should notwithout our written permission be copied, presented or passed over to a third person. Misuse will lead to prosecution. -
Page 56: Declaration Of Incorporation Of Partly Completed Machinery
The product must not be used until the finished machine for which it is to be incorporated in, has been declared as complying with the relevant provisions of the Machinery Directive. Person Company: Gram Commercial A/S responsible for address: Aage Grams Vej 1 technical dossier... -
Page 57: Appendix I (Danfoss Akcc550A Settings)
Appendix I Gram factory settings for AKCC550A (U/KG/FG cabinets) Appendix I (Danfoss AKCC550A settings) Menu survey SW = 1.9x Parameter Gram default Gram default Gram default X = Parameters settings U models settings KG models settings MIDI FG to be... - Page 58 Appendix I Gram factory settings for AKCC550A (U/KG/FG cabinets) Min. OFF-time Time delay for cut in of comp.2 Defrost Defrost method: 0=Off, 1= EL, 2= Gas Defrost stop temperature Interval between defrost starts Max. defrost duration Displacement of time on cut in of defrost at start-up...
- Page 59 Appendix I Gram factory settings for AKCC550A (U/KG/FG cabinets) Menu survey SW = 1.9x Parameter Gram default X = Parameters Gram default Gram default settings MIDI FG to be settings U models settings KG models models (Glass considered/set (Solid door)
- Page 60 Appendix I Gram factory settings for AKCC550A (U/KG/FG cabinets) Input signal on DI2. Function: (0=not used. 1=status on DI2. 2=door function with alarm when open. 3=door alarm when open. 4=defrost start (pulse- signal). 5=ext. main switch 6=night operation 7=thermostat band changeover (activate r21). 8=alarm function when closed.
- Page 61 Appendix I Gram factory settings for AKCC550A (U/KG/FG cabinets) Menu survey SW = 1.9x Parameter Gram default X = Parameters Gram default Gram default settings MIDI FG to be settings U models settings KG models models (Glass considered/set (Solid door)
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Page 62: Appendix Ii (Carel Mpxpro Settings)
Full English Danfoss Manual software 1.9x please see the Danfoss web side. Appendix II (Carel MPXpro settings) On the following pages you will find Appendix II. This appendix does include the Gram factory settings for the Carel MPXpro (U/KG/FG cabinets). - Page 63 8. TABLE OF PARAMETERS Parameter levels: F = frequent, C=configuration (password=22), A=advanced (password=33) Description Type Gram U Gram KG Gram FG /Pro (=PROBES) Analogue probe measurement stability Virtual probe composition 0 = Outlet probe Sm 100 = Intake Temperature unit of measure...
- Page 64 Par. Description Type Gram U Gram KG Gram FG Assign dewpoint value (SdP) to a serial probe 0 = Function disabled 3 = Serial probe S10 1 = Serial probe S8 4 = Serial probe S11 2 = Serial probe S9 Probe 1 calibration (°C/°F...
- Page 65 Par. Description Gram U Gram KG Gram FG Defrost delay on power-up or (for Slave) after control from Master 0 = delay disabled Display on terminals during defrost 0 = temperature alternating with ‘dEF’ 1 = freeze display 2 = ‘dEF’...
- Page 66 Par. Description Type Gram U Gram KG Gram FG Select digital input propagated from Master to Slaves (only on Master) 0 = from supervisor 3 = DI3 1 = DI1 4 = DI4 2 = DI2 5 = DI5 Configure function of digital input DI3 on S6 see A4 Configure function of digital input DI4 on S7 see A4...
- Page 67 Par. Description Gram U Gram KG Gram FG Saturated evaporation temperature calibration °C/°F PWM expansion valve Ton + Toff period Initial valve position when control starts Initial valve position maintenance time after defrost Valve standby position step Valve opening steps (supervisor)
- Page 68 Type Description Gram U Gram KG Gram FG HcP (HACCP Alarms) HACCP alarms present Number of type HA alarms HA to Type HA HACCP alarms activated (press Set) Alarm 1 to 3 - Year year Alarm 1 to 3 - Month month Alarm 1 to 3 –...