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HM1 W RHRC G Y HM2 6
W
R
H
1
2
6
4
3
HM1 HM2
Y
G
W
RC
RH
H
J
I
M
K
L
6
6
1
4
5
2
B
1
From heating system
2
From 24 VAC transformer
(through zone valve)
3
Red jumper wire (provided)
4
From zone valve system
For humidifier wiring see pages 14-15.
See page 9 for letter identification.
NOTE: Thermostat must have batteries installed.
NOTE: Ensure that RED RH/RC jumper wire (provided with
thermostat) is connected between thermostat's RH and RC
terminals for proper operation with this system.
Figure 5 – Typical wiring diagram for heat only, three-wire, zone valve system
Installation/Configuration