Demand; Forced Stoppage - Hitachi RPI-0.8FSG1 Service Manual

OPTIONAL FUNCTION
(4.3 Outdoor Unit)

4.3.1 Demand

In the case that the demand input terminals on the outdoor unit printed circuit board are short-circuited,
compressor(s) is stopped. (In this case, the indoor unit(s) is put under thermo-OFF condition.)
The stoppage code No. "10" is given. By disconnecting the demand switch contact, restarting is available.
The following indicates an example for Demand at input 3 (between 1 and 2 pins of CN18).
Wiring Diagram Example of Demand Control

4.3.2 Forced Stoppage

The compressor is stopped and the indoor fan motor is stopped when the forced stoppage input terminals
(CN18 #1 to #2) on the outdoor unit PCB is short-circuited during running. However, the remote control
switch display remains at the same mode with the stoppage code No. "10".
In this case, if the input terminals are opened, operation is resumed.
Wiring Diagram Example of Forced Stoppage
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