Paragon 8145-20 Defrost Timer Logo
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Anonymous Posted on Oct 21, 2012

How to wire a paragon defrost timer with liquid line solenoid valve t-stat electric heater for walk in freezer

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Ken Buster

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  • Posted on Jun 12, 2014
Ken Buster
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Page 20 in the heatcraft refrigeration manual shows how to interface a paragon defrost timer with the t-stat and evaporator coil.

5 Related Answers

Anonymous

  • 308 Answers
  • Posted on May 07, 2010

SOURCE: how to wire the paragon defrost time with the

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.

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Anonymous

  • 2 Answers
  • Posted on Jun 17, 2009

SOURCE: Set defrost timer on Paragon Electric Defrost-O-Matic

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)

Anonymous

  • 52 Answers
  • Posted on Feb 26, 2010

SOURCE: install and use Paragon 8145 defrost timer

try the uniline website

Anonymous

  • 16 Answers
  • Posted on Nov 13, 2010

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.

http://www.uni-line.com/images/docs/refrigeration-8140series-wiring.jpg

This defrost time can be used for both hot gas and electric heater defrosting so check to see which defrost type is being used.

A

Anonymous

  • Posted on Jan 20, 2011

SOURCE: I have a paragon 8145-20 defrost timer. do you

Link below has wiring diagrams and wiring manuals for 240V 8145-20
http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost

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.

Testimonial: "good info very helpful thank you"

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Freezer working but no cool in Fridge/No Ice making

This is one of the common problem throughout the world. It's because of not going through User Manual before using the fridge. <br /><br />To get better cooling, dispensing water, ice cubes from your refrigerator, please follow the steps. <br />1. Keep temp setting between 3 degree and 5 degree Centigrade.<br />2. Ensure, freezer door and mail door of Refrigerator are closed properly.<br />3. Check freezer fan is working. If struck by frosting behind the freezer, you have to defrost it.<br />4. Defrost cycling is not functioning properly. Because your set temp is less than 3 degree or in minus.<br />5. Auto defrost cycle not activated due to thermostat, timer, heater malfunction. <br />First, locate the defrost timer which may hiddenbehind corners of the fridge at the back bottom, in some models located in theceiling of the fresh food section or behind the cold control cover. Once youlocate the defrost timer, slowly turn the screw in the middle of the defrosttimer with straight screwdriver until the fridge shuts off. Now it's indefrost. If the defrost heater(s) starts, replace the defrost timer and defrostthermostat. If the heater(s) does not start, unplug wire cord to check ohm testfor continuity of heater. If continuity is there, plug cord wire which givespower 120volts (check specification) to heater. If heater no starts, bypassdefrost thermostat by join the 2 wires in the defrost thermostat. If the heaternow comes on, replace the defrost timer and defrost thermostat. If the heateritself is bad, replace it<br />6. Check water line to make ice are not tint or remove kinks in water source line in the back of refrigerator to increase water pressure.<br />7. Check solenoid valve in the rear side of refrigerator back is activated. <br />8. If solenoid activated,no water flow means, have to clean solenoid valve. <br />9. Check shut off arm is not struck due to over ice stores in the ice bucket. Remove it.
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Paragon Model 632-00 Manual

Copy following link:
http://waterheatertimer.org/Paragon-timers-and-manuals.html#632
632-00 is 120Volt defrost timer. Electric heat defrosting with fan delay.
Hot connects to terminal 4
Neutral to terminal 6.
One wire from Fan, compressor, heater each connect to terminal 6, and other wire connects to one of the other terminals depending on electric heat, hot gas, or water spray defrost

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

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Wiring walk freezer

Copy following link to identify defrost timer.
http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost
Add a comment and say which defrost timer you have, which voltage and phase the incoming line

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

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I'm looking for a control wiring diagram for this set up; The condenser is on the roof with a paragon 8145-20 in it. I want to control the defrost cycle of the walk in freezer that is downstairs. The...

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.
http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost

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.
Fixya is always less expensive than a service call.
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I need trippers for an older model Paragon water heater timer Model TC-2. Can you help?

I don't recognize Paragon TC-2.
http://waterheatertimer.org/Paragon-timers-and-manuals.html

Intermatic cross reference does not have that model number either.
http://www.intermatic.com/customer%20service/competitive%20cross%20reference.aspx

Paragon sent e-mail last month saying they were no longer making timers and parts, except for defrost timers. Your water heater timer is not defrost timer.

Here is a wide selection of water heater timers, electro-mechanical and digital:
http://waterheatertimer.org/Boxtype.html
Manuals and wiring diagrams are shown for most products on page.

I recommend simple 240Volt Intermatic WH-40 for price and reliability. Drawback is minimum 1 hour on-off.
Or Intermatic T-101 for 120Volt heater or T-104 for 240Volt heaters sold at Lowes.
Intermatic trippers and motors are available and interchangeable, and are made of steel.

Some new timers are made with plastic parts:
GE 15207 is universal 120V 240V and sold at Home Depot.
Tork has new universal electro-mechanical timer, TU-40 for 120 and 240 applications

I use GE 15070 in-wall timer from Home Depot for my water heater because I change times frequently and try to shave every dollar:
http://waterheatertimer.org/Compare-13-electric-water-heater-timers.html

Add a comment if you need more help.

You can also take advantage of fixya phone support.
Fixya expert will walk you through any problem for a price.
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I have installed 3 paragon timers and this is the first to give me trouble. When the defrost cycle started it did cut off but the timer was stuck on defrost. Many techs have done strange things to the...

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.

http://www.uni-line.com/images/docs/refrigeration-8140series-wiring.jpg

This defrost time can be used for both hot gas and electric heater defrosting so check to see which defrost type is being used.
4helpful
3answers

Set defrost timer on Paragon Electric Defrost-O-Matic

If the air flow and temperature are not being compromised leave it alone. If there is a gradual build up of ice on the evaporator you may have a defrost element or defrost limit switch problem. Set the defrost duration duration to 45 minutes and see if that solves the icing problem. 4 defrost cycles a day should be enough to keep the icing problem at bay. 3 defrost cycles at night about 1 hour apart may also remedy the problem. Experiment until you find the right combination of defrost cycles for your freezer. Watch for any thawing of the product in the freezer and adjust accordingly.
Bills Refrigeration/Montana.
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