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HM1 W RHRC G Y HM2 6
W
R
H
1
2
RC
G
Y
5
3
4
HM1 HM2
6
Y
G
W
RC RH
ED
C
J
I
M
K
L
J
O
M
K
L
1
From heating system
2
From 24 VAC heating transformer
3
From 24 VAC cooling transformer
4
From fan relay
5
From cooling system
For humidifier wiring see pages 14-15.
See page 9 for letter identification.
Figure 6 – Typical wiring diagram for heat/cool, two-transformer system