Application Side
B
C
C O M
CS
C O M
HS
63
B
,
C: Cooling and Heating Mode Switchovers
This unit is capable of switching between heating and cooling automatically, according to the ambient
temperature, or external signal input. Please refer to the user’s manual for more detailed explanantions
on ambient temperature setting. For external signal input, the external signal should be connected to
“
Cool Mode Switch” for cooling operation, and “Heat Mode Switch” for heating operation.
4. Installation Walkthrough
4.5. Wiring
4.5.4. Explanation of Terminal Block 4
A:
Signal cable between indoor and outdoor unit.
A