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RT+
RT-
S
G
Y1
Y2
O/B
Accessory devices
The T29 can control an accessory HVAV device like a humidifier, dehumidifier, or
ventilation device from its AC terminals
Note:You will need to configure the accessory device when you first power on your T29.
2-wire accessory (ventilator)
C
RC
RH
W1
W2
AC+
AC-
RCGYWWire1 Wire2
Furnace control board
Accessory
RT+
RT-
S
G
Y1
Y2
O/B
1-wire accesory
(ventilator)
C
RC
RH
W1
W2
AC+
AC-
RCGYWWire1
Furnace control board
Accessory
T29 automatically connects Rc to AC- when 1-wire configuration is selected during
accessory setup.
Warning: Damage may occur if accessory is connected to AC-
！
5554
Note:
Do not jumper RH or AC+
A1
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