23
Rc
Rh
W1
G
Y2
C
O/W2/B
Y1
OAT
RR
S
S
RTN
HUM
D1
D2
V+
Vg
OAT
S
EN
S
OR
REMOTE
ROOM
COMMERCIAL THERMO
S
TAT
S
EN
S
OR
a33-9185
Fig. 32 — Thermostat Wiring — Outdoor Air Temperature and Remote Room Temperature Sensors
Rc
Rh
W1
G
Y2
C
O/W2/B
Y1
OAT
RR
S
S
RTN
HUM
D1
D2
V+
Vg
COMMERCIAL THERMO
S
TAT
DEHUMIDIFIER/
AUX
HUMIDIFIER
a33-9186
Fig. 33 — Thermostat Wiring — Humidifier and Dehumidifier
NOTES:
1. D1 and D2 can be used independently for equipment requiring a
dry contact.
2. If humidifier or dehumidifier has its own low voltage power supply,
do not connect directly to the thermostat. Use isolated relays.
3. For humidifer control, 24-V is provided from the HUM terminal to
operate the equipment.
4. For dehumidifier control, 24-V is applied from Rc to the dehumid-
ifier through relay contacts D1 and D2.
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