Hitachi RPI-0.8FSG1 Service Manual page 319

(2) Remote Control 2 (Pulse Signal Input)
This is an ON/OFF function from a remote place by using pulse signal. The basic wiring and time
chart are shown below.
(In Case of "ON" Signal Input to 2# and 3# of CN3 and "OFF" Signal Input to 1# and 2# of CN3)
NOTES:
1. Picking up signal within 10 seconds after power supply is turned ON is not available due to initializing of
components.
Do not change the signal (RUN/STOP) in this period.
2. Remote Control Switch is required for this function.
3. KPI series is applicable for "A/C + VENTI Mode" only.
OPTIONAL FUNCTION
(4.2 Indoor Unit)
4-15