York HIDS006B21S Service Manual page 145

(3) Picking Up Cooling Operation Signal [ Output Setting: Code (03) ]
This function is utilized to pick up a cooling operation signal that has nothing to do with the compressor
stoppage by a thermistor. An example of basic wiring is shown below. The contact of the auxiliary
relay "RYa" is closed when this operation signal is given.
(Example: Cooling Operation Output is set to terminals 1 and 3 of CN7.)
(4) Picking Up Cooling Thermo-ON Signal [ Output Setting: Code (04) ]
This function is utilized to pick up a thermo-ON signal during the cooling operation. An example of
basic wiring is shown below. The contact of the auxiliary relay "RYa" is closed during thermo-ON in
cooling operation.
(Example: Cooling Thermo-ON Output is set to terminals 1 and 3 of CN7.)
(5) Picking Up Heating Operation Signal [ Output Setting: Code (05) ]
This function is utilized to pick up a heating operation signal that has nothing to do with the compressor
stoppage by a thermistor. An example of basic wiring is shown below. The contact of the auxiliary
relay "RYa" is closed when this operation signal is given.
(Example: Heating Operation Output is set to terminals 1 and 3 of CN7.)
SM-18001-rev.1
EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING
CN7 Connector
CN7
1
3
3 P Connector
Picking Up Operation Signal
CN7 Connector
CN7
1
3
3 P Connector
Picking Up Cooling Operation Signal
CN7 Connector
CN7
1
3
3 P Connector
Picking Up Operation Signal
Indoor Unit PCB
Auxiliary Relay
RYa
RY
Indoor Unit PCB
Auxiliary Relay
RYa
RY
Indoor Unit PCB
Auxiliary Relay
RYa
RY
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