Question about Paragon 8145-20 Defrost Timer
A walking freezer unit's temperature is 20f. plus. the evaporator fans are off for a very long period of time, how do I shorten the time or adjust the fan's, on and off cycling?
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Posted on Jan 02, 2017
the problem is not necessarily with the timer. it seems you have more than ample time and time allocations to perform a complete defrost. most walk ins should have roughly 25-40 minutes of defrost every 4 to 8 hours. if you defrost with a heating element, you may have a problem with the strength of the element,or the element may be pulled away from the coil. you could also have a problem with the defrost thermostat(allowing the defrost to terminate prematurely)
Posted on Jun 17, 2009
Your refrigeration circuit should be connected to terminal # 4, as this is the normally closed set of contacts, and the heaters should be powered from terminal # 3 as this is the normally open set of contacts. Hope this helps.
Posted on May 07, 2010
SOURCE: Paragon 8145-20 defrost timer
I am not professional at commercial refrigeration, and can't answer your question directly.
However, you can see 8145-20 240V defrost timer wiring diagrams and manuals on following link.
8145 timer is time initiated, and pressure/temperature terminated, with back-up time termination.
Posted on Feb 06, 2011
SOURCE: I'm looking for a control
Open following link to see wiring diagram and manual for Paragon defrost timers:
8145-20 is 240V time-initiated, pressure or temperature terminated, with back-up time termination.
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Posted on Feb 11, 2011
Is this a hot gas bypass defroster with a switching valve? If so, the compressor should be on.
Posted on May 07, 2014
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