Multistat Smart Thermostat Deployment Guide (CLI-W210x/W200x) 10 of 21 45 Perseverance Way, Hyannis MA 02601
009-1959-00 | 200723 Savant.com | 508.683.2500
Humidifier or Dehumidifier Wiring - Auxiliary Relay Humidifier or Dehumidifier Wiring - Any Relay
o
G
AUX OUT
AUX IN
RS2
RS1
GND
GND
RX-
RX+
GND
1-WIRE
5V DC
Y2
Y1
W2
W1
RC
RH
TX+
TX-
24C
C
R
24V AC
Thermostat Power
Transformer for
Humidifier
24V AC
Humidifier or
Dehumidifier
Solenoid
o
G
AUX OUT
AUX IN
RS2
RS1
GND
GND
RX-
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 Community.
– 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 o 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.