13
Installation/Configuration
HM1
HM2
6
Y
G
W
RC
RH
D
C
J
I
M
K
L
HM1 W RH RC G
Y
HM2 6
1
R
C
G
Y
3
2
1
From 24 VAC cooling transformer
2
From fan relay
3
From cooling system
For humidifier wiring see pages 14-15.
See page 9 for letter identification.
Figure 7 – Typical wiring diagram for three-wire cooling system
