a second, multi-speed fan and control means responsive to the system high side pressure for controlling the second fan speed; the control means including a time delay relay means for assuring a high speed operation of the fan upon initial operation of the system regardless of outdoor temperature...
the control will energize a time delay relay. If the suction pressure does not rise above the preset point with-in the 60-second time delay, the control will close the solenoid valve. This control must be manually reset, it will
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time delay circuit 64, which can be set for from 1 to 10 minutes, or other selectable time period if desired, to provide an output signal at output terminal 65 thereof. This signal is, in turn, applied to an input of circuit 48, as illustrated, to provide an alarm signal when high ...
When the temperature is satisfied, a defrost termination fan delay thermostat (DTFD) terminates the defrost cycle. The fan delay allows the warm coil to cool after a defrost cycle before the fans turn on. A heater safety thermostat is installed to prevent heaters from overheating above 75°F....
1.This products is a universal single sensor temperature controller, it has the function of refrigeration, temperature overrun alarm, etc.Co,pressor protection delay time can adjust. After electrify temperature overrun alarm delay is adjustable. It is suitable for cold storag...
1/4HP 115V Thermal Overload Safety Protection Relay Time Delay for Air Conditioner Refrigeration Commercial Freezer Compressor US$0.26-0.32 / Piece Wholesale HVAC Parts Copper Filter Drier Compressor Filter Drier US$0.20-0.45 / Piece HVAC Parts Air Conditioner Insulated Connecting Coppe...
2.Compressor protection delay time can adjust; 3.After electrify temperature overrun alarm delay is adjustable;4.It is suitable for cold storage,refrigerated truck refrigeration industry,etc.Specifications: 1.Product size:75*34.5*85mm2.Installation size:71*29mm3.Sensor:2 meters(pro...
is satisfied. Also, if a defrost is already underway when the DSM event occurs, the opening of contact C2will terminate the defrost until the event is over or until the time delay latching relay timer “times out” and returns the system back to normal, i.e., unlatches the relay. ...