The outside probe can be fitted in the J6 of the board of the first compressor, or in the J3 of the economiser
board.
Whenever the economiser accessory is fitted, the system searches for the outside probe in the
economiser as a first option.
A table with the configuration of probes is provided below.
Probe
Connector
Colour
PUMP COLD
Obligatory Optional Obligatory Optional
Discharge White X X
Liquid green X X
Outdoor
YKN2Open
Orange X X
Suction Black X X
Supply
YKN2Open
Red X X
Supply
2nd Compressor
Orange X X
Economiser
Return
Black X X
Water entry Black X X
Economiser
Outdoor
White X X
The unit will be fitted with a Discharge, Liquid and Suction probe per cooling circuit.
3.1.3 Communications with the thermostat
The board program will attempt to operate with the thermostat via communications. If they are lost it will
be able to operate with the thermostat relay signals. If there is no communication with the thermostat, a
new communication is made every minute. If communication with the thermostat is restored, operation
modes are switched to work with the thermostat using communications; failing this, acknowledgement
of the relay signals is continued.
The board will be able to detect and communicate with a DPC-1 or DPC-1R thermostat.
Configuration
3
Configuration 3.1
7
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