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?
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.
Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on timer or any do-it-yourself project.
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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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