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Mercury Free Heat Only Thermostat with Positive Off for control of single stage low voltage heating systems
It senses for temperature
The Q340A and Q390A thermocouples generate a thermoelectric current that senses a pilot flame on gas-fired heating systems
ENERGY STAR® Certified
ZD6X22TZ/U No Image Mercury Free Heat Only ThermostatThis easy to wire damper includes a 24 volt motor used to control circulating air in HVAC systems. The ZD is a power close and spring open damper used when a normally open damper is required. It's typically used with TrueZONE and other electronic zoning systems.
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