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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