ION SYST0101CW Installation Instructions Manual page 54

Zone Control
User Interface &
Smart Sensor(s)
DX+ DX-
C R
DX+
DX-
C R
Damper
Control
module
Zoning Connection for Communicating Indoor Unit with
NOTE: Some outdoor units do not require "C" and "R" connections. Please see outdoor unit
Installation Instructions.
DX+
DX-
C
2-Stage Communicating Outdoor Unit
Green
Yellow
White
Red
R
Humidifier
Connection
54
Indoor
Communicating
Unit AC or HP
DX+
DX-
C
R
HUM
COM
24V
OAT
Sensor
(Optional)
OAT
DX+
DX-
C
R
A04018I