23
SKOPE OD400
‐
2
Electronic Controller
Service Manual
Cold Climate Protection
The chiller will enter cold climate protection (CCP) mode if the ambient
temperature becomes too cold. This happens if the control probe (at the
evaporator air out) detects the interior temperature below -0.3°C (parameter
St - CCt) for more than 30 minutes (parameter CCd). The lights will stay on
and cannot be switched off while the chiller is in CCP mode. The chiller will
return to Normal operation mode once the control probe reading raises to
1.7°C (parameter St).
Hardware
Setup
Hardware Inputs
The controller has three hardware inputs as detailed in the table below. All
use pin 9 as common.
Electronic controller hardware inputs
Temperature Settings
Standard temperature settings are set-up for perishable product. All product
temperatures are continuously below 5°C. The temperature can be altered
by changing the set point (parameter St).
Temperature Probe Readings
Control probe
If parameter /4 is set to 1, the control probe temperature reading is displayed
on the controller faceplate during normal operation. If parameter /4 is not set
to 1, it can be changed to 1 to view the control probe temperature reading.
Condenser probe
To view the condenser probe temperature reading, press the
ES (up)
and
Set (mute)
buttons simultaneously. The temperature reading will display on
the controller faceplate.
Evaporator probe
To view the evaporator probe temperature reading, enter the parameter
menu and navigate to parameter d/2 to display the evaporator probe
reading.
Wiring Termination
Refer to the diagram below for controller termination details.
Pins (on rear of
controller)
Hardware description
9-8
Control probe
9-10
Condenser probe
9-11
Evaporator probe
Condenser Probe (10)
Evaporator probe (11)
Common (9)
Control probe (8)
Supply (6, 7)
Compressor (4, 5)
Lights (1)
