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Honeywell DB7110U 1000 universal heat pump defrost control. Works on nearly every single-stange heat pump.
Features / Benefits:
Universal Defrost Control for Single Stage On/Off Heat Pumps. It provides control of the outdoor equipment compressor contactor, reversing valve, and outdoor fan in response to thermostat requests and air and coil temperatures. It also controls the indoor auxiliary heat source that is used during defrost operations and often as a second stage of heat. A defrost cycle is triggered based on outdoor air and outdoor coil temperatures that are measured using included temperature sensors. Application: Single Stage Heat Pumps
Includes: Air temperature sensor with 2 pin connector, Coil temperature sensor with 3 pin connector, wire leads, wire nuts, mounting screws.
Comments: All terminals except FAN-IN and FAN-OUT are NEC Class 2 low voltage, FAN-IN and FAN-OUT are line voltage.
Mounting: Any Orientation, but recommended to mount so display is easily readable
Electrical Ratings: Maximum Input Current: 200 mA, Compressor Contactor: 1A @ 24 Vac, Aux Heat: 1A @ 24 Vac, Reversing Valve: 1A @ 24 Vac, Outdoor Fan: 1/2 HP motor, 5A full load, 30A locked rotor, 240 Vac.
Frequency: 60 Hz
Stages: Single Stage On/Off
Electrical Connections: 1/4 in. quick connect Operating Humidity Range (% RH): Less than 95% RH, non-condensing
Supply Voltage: 24 Vac
Operating Temperature Range (F): -40 F to 150 F
LEDs: System LED, Fauult LED
Ambient Temperature Range (F): Coil Enable: 30 F to 36 F, Termination Temperature: 50 F to 100 F, Auxiliary Lockout Temp: 0 F to 40 F, Compressor Lockout Temp: -10 F to 40 F
Display: 4 character 7 segment display for Menu and Settings
Operation: All outputs rated for 100,000 operations