Question about Paragon 8145-20 Defrost Timer
Posted by Anonymous on
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
SOURCE: I have installed 3 paragon
You need someone to come in and trace the wiring if you cannot figure it out. You said you had the Paragon wiring diagram already, if not the link below can be used.
This defrost time can be used for both hot gas and electric heater defrosting so check to see which defrost type is being used.
Posted on Nov 13, 2010
Link below has wiring diagrams and wiring manuals for 240V 8145-20
I am not expert installing defrost timers.
According to information from Paragon, 8145 is for hot gas defrosting. 8140 series are time initiated, and pressure-or-temperature terminated.
Wiring diagram does not show compressor wired to timer.
The cycle works like this:
Timer is running but defrost is not switched ON.
Fan is ON.
Timer switches ON and activates defrost cycle.
Fan turns OFF. Hot gas valve turns ON for defrosting.
Cycle limit switch is temperature or pressure sensitive.
Cycle limit switch reaches trip point, timer switches OFF.
Hot gas valve turns OFF. Fan turns ON.
So fan is off during defrost cycle.
Hot gas valve turns ON when timer switches ON.
Timer is switched OFF by pressure-or-temperature limit switch.
Posted on Jan 20, 2011
Testimonial: "good info very helpful thank you"
Tips for a great answer:
Aug 06, 2013 | Hardware & Accessories
Oct 07, 2011 | Paragon 8145-20 Defrost Timer
Sep 14, 2011 | Paragon 8145-20 Defrost Timer
Mar 05, 2011 | Paragon 8145-20 Defrost Timer
Feb 11, 2011 | Paragon 8145-20 Defrost Timer
Jan 10, 2011 | Paragon 8145-20 Defrost Timer
Dec 09, 2010 | Paragon 8145-20 Defrost Timer
Aug 01, 2010 | Paragon 8145-20 Defrost Timer
Feb 05, 2010 | Paragon 8145-20 Defrost Timer
Nov 14, 2008 | Paragon 8145-20 Defrost Timer
May 01, 2016 | Paragon 8145-20 Defrost Timer
196 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: