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Electronic Temperature Control Systems
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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.
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 is 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 button
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
CA2 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 these environments.
SINGLE STAGE COLD ROOM PANEL
*(9&3/
Applicable to model numbers: 2051/52/53/54/55/56