Hitachi RPI-0.8FSG1 Service Manual page 328

OPTIONAL FUNCTION
(4.2 Indoor Unit)
(6) Picking Up "Thermo-ON" Signal during Cooling Operation (Except for KPI Series)
This function is utilized to pick up the cooling "Thermo-ON" signal of compressor running. Connect
the wires as shown below.
The contact of RYa is closed when "THERMOSTAT" is ON during cooling operation mode.
(In Case of Giving "Thermo-ON" Signal during Cooling Operation to 1# and 3# of CN7)
NOTES:
1. "Thermo-ON" indicates that one of the micro-computer control function "THERMOSTAT" is ON as a
thermostat.
2. See the item 4.2.1 regarding remote control switch setting for wiring and output signal.
(7) Picking Up Total Heat Exchanger Signal
This function is utilized to pick up the total heat exchanger signal when the ventilation is operated by
PC-P1H. Connect the wires as shown below.
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