GE Electronic Temperature Control Systems -VCPL User's Manual
Contents
1. Ensure that all wires are properly connected in the appropriate terminal a loose wire could cause sparking and damage the instrument and may be dangerous BUTTON COMMANDS TO SET THE TEMPERATURE In case of an instrument failure or faulty functioning of the instrument return it to your local distributor or direct to the manufacturer If the unit is still in its warranty period it will be replaced free of charge To set the temperature push the temperature set button and the display will intermittently show the letters SP set point and the pre set temperature To increase the temperature use the value up button to decrease the temperature use the value down button v Once the required temperature is selected release the buttons and wait until the display shows the actual temperature again The instrument has now adopted the new setting and will operate in accordance with these new instructions ACTIVATE A MANUAL DEFROST CYCLE It may be possible that from time to time the user wants to use some extra defrost cycle s To activate a manual defrost push the manual defrost button and keep it pressed for a minimum of 5 sec Until the defrost signal shows on the display A manual defrost may be activated as many times as required WARNING SIGNALS In addition to its standard control functions the GE VCPL series also contains a number of diagnostic functions and can show the following alarm signals RSF There is2. a refrigeration system failure Contact your supplier EE There is a microprocessor electronic failure contact your supplier PF1 There is a sensor failure that is very likely caused by a loose connection of the sensor wire in the terminal block of the instrument This sensor is the appliance sensor Contact your local supplier PF2 There is a sensor failure as PF1 but in the sensor of the evaporator PF3 As PF1 and PF2 but this is the sensor connected to the condenser AL1 The temperature of the appliance has exceeded its maximum allowable temperature AL2 The temperature of the appliance has exceeded the minimum allowable temperature HT The condenser is blocked CHANGING PARAMETER VALUES To change the parameter values switch the power to the unit off push the temperature set button and keep it pushed whilst switching the power on again The display will flash and intermittently show the figures 888 Once the display stops flashing the instrument is in parameter mode and the values can now be changed To scroll through the parameters push the temperature set button and to change the value of the parameters use the value buttons When finished release all buttons and wait until the display shows the actual temperature again Please note that the VCPL has two different sets of parameters The first batch can be accessed as described above and the second set can be accessed by holding the set bu
3. A2 Sensor 2 calibr 17 8 F D1 Display stability 1 to 8 D2 Display speed 1 to 255 rt Min rest time 1 to 30 min dE Defrost intervals 1 to 199 hrs dd Defrost duration 1 to 199 min dF Defrost method 1 off 2 heater 3 hot gas dt Max temp in appliance during defrost 40 212 F SP2 Max evap Temp during defrost 40 212 F FP Fan stop during defrost 0 no 1 yes Fd Fan delay to on 0 60 min CT Refr System failure elapse time 1 to 255 hrs dEF Display during defrost 0 temp 1 start temp 2 dEF LL Low alarm temp 40 212 F HL High temp alarm 40 212 F AD Alarm delay 0 255 min B1 Buzzer off for 0 to 255 min B2 Buzzer on for 0 255 min Access through set and up button Ht Blocked condenser temp 176 to 250 F St Time zone for reset 1 to 255 hrs CF Degr C or F 0 C 1 F db Display brightness 0 bright 1 dim C1 Computer interface 0 wireless 1 Infra Red D1 Data intervals 1 255 minutes FL Compressor run after failure 0 yes 1 no cURus Approval Pending GE Electronic Temperature Control Systems should not be exposed to low temperatures or high humidity such as outdoor or refrigerated environments It is the customer s responsibility to determine the proper application of the controls and to specify the optional Conformal Coating if the controls are going to be used in the
4. Electronic Temperature Control Systems DESCRIPTION The VCPL series is especially designed for use in the commercial refrigeration and is available in various different models The VCPL is also available with communication properties In addition to extremely accurate temperature control the VCPL offers the user diagnostics marketing information and current statistics scroll i e average temperature lowest temperature highest temperature number of door openings compressor cycles and compressor running hours As standard all models in the VCPL series are fitted with 6 relays switching compressor heating element or solenoid valve external alarm evaporator fan on off switch and light s All relays in this unit have a switching capacity of 16 Amp 240 Volt WARNING This manual is part of the product and should be kept near the instrument for quick reference The instrument should not be used for purposes other than described and or specified by the manufacturer These controls can only be used with GE double insulated sensors SAFETY PRECAUTIONS Ensure that the supply voltage is correct before connecting the instrument 240 Volt Ensure that the instrument is not exposed to water or any other liquid Ensure that the current that is switched does not exceed the maximum switching capacity of the instrument If the current to be switched is greater than the instrument limits a separate relay should be installed
5. se environments SINGLE STAGE COLD ROOM PANEL Applicable to model numbers 2051 52 53 54 55 56
6. tton and the up button pushed together WARNING If the power to the unit is switched off whilst the instrument is still in parameter mode the system will NOT accept the changes MAINTENANCE The GE VCPL does NOT require any maintenance WARNING To clean the facia of the GE VCPL use wet soapy rag The instrument is an electronic device do not use water or any other cleaning liquid to clean the facia of the instrument as this may cause serious and unnecessary damage to the system and may be dangerous WIRING INSTRUCTIONS All wiring instructions are printed on the housing of the unit and contain all possible information needed to connect the GE VCPL Follow these instructions and ensure that all connections in the terminals of the instrument are properly fastened as loose connections may influence the performance of the instrument and may cause sparking The GE VCPL is powered by 240 Volt and should be connected direct to the mains IMPORTANT Only authorised and competent personnel should connect and or disconnect the GE VCPL INSTALLATION The recommended hole size for the GE VCPL is 9 5 32 x 3 5 8 but in addition there are the holes for the fasteners as per the drawing on the reverse of this instruction manual PARAMETER LISTING Access through set button Param Description Range US Upper SP limit 40 212 F LS Lower SP limit 40 212 F DIF Differential 1 8 178 F CA1 Sensor 1 calibr 17 8 F C
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