Century COMFORT-AIRE VMH-SG Series Service Manual page 19

Service Manual - VMHxxSG
No. Name
10 HEAT_D
11 HEAT_Y
12 4-WAY
13 /
Note: This section is for reference only. Please take practicality as standard.
CN#
CN8
CN20
connect to the heater, 208-230V AC when is ON
CN21
CN36
CN38 connect to 4 way valve, 208-230V AC when is ON.
CN27 connect to key board CN1
Meaning