Multistat Smart Thermostat Deployment Guide (CLI-W210x/W200x)
10 of 21
45 Perseverance Way, Hyannis MA 02601
009-1959-00 | 200723
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Humidifier or Dehumidifier Wiring - Auxiliary Relay
Humidifier or Dehumidifier Wiring - Any Relay
o
G
AUX
OUT
AUX
IN
RS2
RS1
GND
GND
R
X-
RX+
GND
1-
WIRE
5V
DC
Y2
Y1
W2
W1
RC
RH
TX+
TX- 24C
120V AC
C
R
24V AC
Thermostat Power
Transformer for
Humidifier
120V AC
24V AC
Humidifier or
Dehumidifier
Solenoid
o
G
AUX OUT
AUX
IN
RS2
RS1
GND
GND
R
X-
RX+
GND
1-
WIRE
5V
DC
Y2
Y1
W2
W1
RC
RH
TX+
TX- 24C
120V AC
C
R
24V AC
Thermostat Power
Humidifier or
Dehumidifier
Solenoid
–
The Aux Out and Aux In terminals connect to a normally open relay.
These connections short when the relay is energized
–
Refer to the
Assign an Aux Relay to Control a Humidifier
or Dehumidifier
section in the Multistat Smart Thermostat
Programming Guide available on the
–
Savant recommends using standard #18 AWG HVAC wiring.
–
The W1 and RH terminals connect to a normally open relay. These
connections short when the relay is energized.
–
A humidifier or dehumidifier is switched on or off using any available
relay. When connecting one side of the transformer to the RH
connection, use either W1, W2, or O to complete the circuit. When
connecting the transformer to the RC connection, use either Y1, Y2,
or G (see diagram above).
–
Savant recommends using standard #18 AWG HVAC wiring.