ION SYST0101CW Installation Instructions Manual page 56

Zone Control
User Interface &
Smart Sensor(s)
DX+
C
DX- R
DX+
DX-
C R
Damper
Control
module
Zoning Connection diagram for FCM4 Fan Coil with
Non-communicating 1-Stage Heat Pump
DX+ DX- C R
Non-comm ODU
IDU
Furnace 1-stage A/C
Furnace
2-stage A/C
Furnace
1-stage HP
Furnace
2-stage HP
Fan Coil 1-stage A/C
Fan Coil
2-stage A/C
Fan Coil
1-stage HP
Fan Coil
2-stage HP
CRM Chart
Variable-Speed
Fan Coil
Green
Yellow
White
Red
Humidifier
Connection
CRM required?
No
Yes
Yes
Yes
No
Yes
No
Yes
56
DX+
DX-
C
R
1-Spd. HP
HUM
C
G
R
O
W
Y
OAT
C
R
O
W2
Y
OAT
Sensor
A07149I
A160170i