AERCO BMS 168 - Manual (Page 20)

mA OUT
RS-485
COMM.
+
-
+
-
ANALOG IN
SENSOR COMMON
OUTDOOR SENSOR IN
REMOTE INTL'K IN
B.M.S. (PWM) IN
SHIELD
+
-
+
-
AUX SENSOR IN
NOT USED
EXHAUST SWITCH IN
DELAYED INTL'K IN
FAULT RELAY
120 VAC, 5A, RES
AUX RELAY
120 VAC, 5A, RES
G
NOT USED NOT USED
NC
COM
NO
NC
COM
NO
NOT USED
Remove sheet
metal cover to
access I/O Box
PWM Connections
RS485 COMM Connections
Figure 6
PWM & RS485 CONNECTIONS AT
KC SERIES BOILER WITH C-MORE CONTROL BOX
3-10