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Heat and Air Controls

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White-Rodgers
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All Products
tekmar
White-Rodgers
Sensi
WarmlyYours
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LUX Products

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tekmar
White-Rodgers
Sensi
WarmlyYours
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LUX Products

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Home /White-Rodgers /Defrost and Blower Controls

Series (24)Defrost and Blower Controls

Series

HSI Ignitors (26)
Solenoids and Coils (15)
Water Heater Controls (15)
Thermostat Parts and Accessories (14)
Relays (12)
Fan and Limit Controls (11)
Appliance Controls (10)
Line Voltage Thermostats (9)
Flame Sensors (8)
Hydronic Zone Valves (8)
Electric Heat Controls (7)
80 Series Thermostats (6)
Contactors (6)
Thermostat Guards (6)
Transformers (6)
70 Series Thermostats (5)
Blue Series Thermostats (5)
Standard Mechanical Thermostats (5)
Defrost and Blower Controls (3)
Economy Mechanical Thermostats (3)
Thermocouples (3)
Classic 80 Series Thermostats (2)
Electronic Furnace Controls (2)
Remote Sensors (2)

White-Rodgers Defrost and Blower Controls

On heat pump systems White-Rodgers 47D defrost controls time outdoor coil cycles, whereas the 57T relay holds indoor blower run-on for 80 seconds after heat call. Boards run on 24V with plug and spade-wire terminals. Board swap takes about 20 minutes.