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15
HM1 6 Y G W
HM2
RC RH
HM1 W RH RC G Y HM2 6
A
1
L
M
K
K
J
1
I
Relay
90-290Q
or equivalent
HM
Figure 9 – Typical wiring diagram for 120V humidifier system
1
From humidity system
See page 9 for letter identification.
Installation/Configuration
Emerson 1F97-391 Thermostat User Manual