Question about Icm 302c 302 Heat Pump Defrost Timer Control Board

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Defrost control panel

Need diagram to rewire my a/c defrost control panel for my HEIL 5000 model #CA5536. Thank you

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How to set the defrost duration on a timer


Copy following link for defrost timers:
http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost

There are 2 general types defrost timers.
Time activated - Time terminated
Time activated - Temperature-pressure terminated, with timed termination back-up

Here is basic image:
http://waterheatertimer.org/images/8145-work-image.jpg
Rotate dial until current time lines up with pointer, insert tripper pin on outside edge of dial to select defrost start-time, move defrost duration tripper on inner dial to set termination time.

Each defrost timer is slightly different:
If timer is time-terminated, then wiring follows certain diagram.
If timer is temperature-pressure terminated, then different wiring diagram is used.

Nov 11, 2012 | Paragon 8145-20 Defrost Timer

1 Answer

I need to replace a Frididaire Defrost Timer for a 15cuft topmount frig. I bought the timer from Frigidaire with PN#4092799. The guy on the phone at Frigidaire told me that it is behind the control knob...


Hi and welcome to FixYa, I am Kelly.
Actually... You may have bought the incorrect part to repair your refrigerator. The symptom your describing is most often caused by the defrost heater element itself being open. (<-Burned out) The reason I say this is your unit is shutting off.... starting the defrost cycle... but NOT terminating the cycle until the compartment reaches 60 deg F. The fact that it restarts at 60 Deg F is telling you the defrost timer control AND the defrost bi-metal 60 deg F thermostat are both working normally. I would bet if you removed the evaporator coil access panel in the back of the freezer compartment that you would immediately notice the heating element in the glass tube UNDER the evaporator coils has failed or... one of the wires on the end of the heater has failed. It is not difficult to gain access to the evaporator coils. You remove all racks in the freezer compartment and ALL of the screws including the one usually under the light cover and the panel is pulled toward you from the TOP. To remove the light cover there are 2 tabs on one side of the plastic cover that you gently squeeze the cover to release it. The problem can be the defrost timer but... as you described the symptoms; I seriously doubt it.
If in the future you need more assistance PLEASE respond with your MODEL number so we can discuss exact repair procedures applicable to your unit.
Thanks for choosing FixYa,
Kelly

Feb 15, 2011 | Frigidaire Maytag R0131577 215846602...

1 Answer

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

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Feb 11, 2011 | Paragon 8145-20 Defrost Timer

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I need a three phase wiring diagram for 8145-20 model timer.


8145-20 240Volt Paragon timer is not 3-phase.
Clock motor is 240V.
You need a transformer to convert 3-phase to single phase 240V to operate timer.
Then timer outputs can control 3-phase power using 3-phase contactors
Contactor below is 3 phase with 240V coil
http://www.grainger.com/Grainger/DAYTON-Contactor-2UTP7?Pid=search

Defrost timer wiring diagrams show below:
http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost

Dec 21, 2010 | Paragon 8145-20 Defrost Timer

1 Answer

I have a paragon 8145-20 defrost timer. do you wire the compressor to the timer? I cant seem to find a wiring diagram on how to wire this correctly


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.

Dec 09, 2010 | Paragon 8145-20 Defrost Timer

1 Answer

I need wiring diagram for Paragon 8154-20. The plastic board has melted


I think you have the 8145-20 240V
This is a time-initiated defrost timer

Paragon 8145 page
http://www.uni-line.com/modules/catalog/SearchResults.aspx?mode=productsearch&prodID=8145

Wiring for 8145
http://www.uni-line.com/images/docs/refrigeration-8140series-wiring.jpg

Wiring diagram shows both 120V and 240V
L1 L2 is 240V
L N is 120V

090794f.jpg

Website that explains defrost cycle
http://www.appliance411.com/faq/howdefrostworks.shtml

Oct 11, 2010 | Paragon 8145-20 Defrost Timer

1 Answer

I HAVE A HEIL 5000 A/C CONDENSING UNIT.\r\nCAN YOU TELL ME WHAT SIZE IT IS (TON)? MODEL # CA5560 VKD2 STYLE # 60MCE-000095ZR SERIAL # L9811 50209MANF # NCA5560 VKD2 I APPRECIATE YOUR HELP. THANK YOU VERY...


Hi,
It looks like you have a 60,000 BTU unit or a 5 ton unit...12,000 BTU/ton is how you figure that...
The 60 in the model number indicates the nominal btu's of the unit... the exact output could be a bit more or less depending on the air handler...

heatman101

Aug 04, 2010 | Honeywell International Heil Quaker...

1 Answer

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.

Feb 05, 2010 | Paragon 8145-20 Defrost Timer

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