Question about Paragon 8145-20 Defrost Timer

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What purpose does the solenoid (wired between terminals 2 and X)serve in a Paragon defrost timer?

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The solenoid switches timer OFF when temperature-or-pressure limit switch reaches trip point.
http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost

Posted on Jan 20, 2011

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The unit I'm working on has a 1 month old 8145-20ex and now the unit wont go into defrost - The compressor and the evap do not stop and the heaters do not energize. I'm thinking the defrost termination...


Copy following links:
http://waterheatertimer.org/Paragon-timers-and-manuals.html#8145
http://waterheatertimer.org/pdf/How-to-test-Paragon-8145-timer.pdf
8145-20 is 240Volt defrost timer.
The defrost cycle will not begin. This implies that trippers are not in place, or trippers are worn out.... or limit switch is stuck ON or solenoid inside timer has gone bad.
Test across terminal N to X for 240Volt. Because voltage here will stop defrost cycle by activating solenoid inside timer, but continuous voltage will also stop next defrost cycle from beginning. Disconnect wire on terminal X and see if defrost cycle will begin at next tripper. If defrost begins, then limit switch is bad.
Gene
h

Aug 06, 2013 | Hardware & Accessories

1 Answer

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

Jun 24, 2013 | Paragon Hardware & Accessories

1 Answer

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

Model 4001-ov trips the circuit breaker.


Assuming you have Paragon 4001 40 amp 120Volt timer
By-pass the timer so only pool pump is connected to breaker.
To do this, move wire from terminal 2 and connect to terminal 1.
If breaker no longer trips, then replace timer with Intermatic T101
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T101
Crossover wiring: Paragon terminal 1 goes to Intermatic terminal 1.
Paragon terminal 2 to Intermatic terminal 2.
Paragon terminal 3 to Intermatic terminal A
If breaker keeps tripping after bypassing timer, then tighten wires on circuit breaker and test again.
If breaker keeps tripping, then move wires to another same-size breaker.
http://waterheatertimer.org/How-to-replace-circuit-breaker.html
Breakers trip when they sense overheating.
If motor is causing problem, you might need electrician to track down source of overheating.

Jun 19, 2012 | Paragon 4001-0G Defrost Timer

1 Answer

Without doing the minimal setting test to see if a time clock works how do you test a time clock with defrost termination the x terminal


8145-20 is 240Volt defrost timer:
http://waterheatertimer.org/Paragon-timers-and-manuals.html#8045

You are testing the 8145-20 timer.
The timer dial should rotate continuously. Trippers on dial rotate around. When they reach the trip switch, the timer starts the defrost cycle.
Terminal 3 has power during defrost cycle.
Terminal 4 has no power during defrost cycle.
With 240Volt timer, terminals 1 and 2 and N and X test for live power to ground at all times.

The limit switch is connected to terminal X and to terminal N.
During the defrost cycle, the limit switch measures the pressure or temperature.
When pressure or temperature reaches the set point, the limit switch closes the circuit and this trips the solenoid inside timer. The solenoid turns off the timer relay, and the defrost cycle ends.
At this point the timer turns off the defrost, and sends power to the refrigeration.
Terminal 3 has no power during refrigeration cycle. (The opposite of defrost cycle).
Terminal 4 has power during refrigeration cycle.
Test these terminals for power to ground. One or the other should have power at all times, but not both.

If timer will not enter defrost cycle, make sure the X-3596 trippers are not worn down.
Disconnect the wire to terminal X and see if defrost cycle will start.
Test terminals 3 and 4 again and see if removing wire from X caused a change.

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Sep 14, 2011 | Paragon 8145-20 Defrost Timer

2 Answers

I need a set of trippers for a Paragon timer Model number 4001-00. Where can I get them. Thank you. My name is Jim Vivone


Google search for X2772 tripper and some places may still have them.

Paragon is no longer making timers and parts except defrost timers.
Paragon 4001-00 120Volt timer uses X2772 tripper:
http://waterheatertimer.org/Paragon-timers-and-manuals.html#4000

Paragon 4001-00 crossover to Intermatic is T101 120Volt timer.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T101

Crossover wiring:
Paragon 4001-00 has terminals 1 2 3
T101 has terminals A 1 2

Paragon terminal 1 connects to Intermatic terminal 1
Paragon terminal 2 connects to Intermatic terminal 2
Paragon terminal 3 connects to Intermatic terminal A

Aug 03, 2011 | Hardware & Accessories

1 Answer

What is the purpose of the solenoid.


You posted under Paragon 8145-20 defrost timer
The solenoid resets timer, and ends defrost cycle when pressure or temperature switch calls for termination.
http://waterheatertimer.org/Paragon-timers-and-manuals.html#8145

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Mar 05, 2011 | Paragon 8145-20 Defrost Timer

1 Answer

I need trippers for parogon elect timer model # 4004-20


1) Paragon is no longer making timers or parts except defrost timers.
4004-20 240V 24-hour mechanical timer is not a defrost timer.

2) paragon 4000 series uses X2772 tripper.
http://waterheatertimer.org/Paragon-timers-and-manuals.html#4000

3) Some sites still show the X2772 tripper.
Some sellers are seriously overcharging for the tripper.

4) If you want to buy new timer: Intermatic cross-reference guide shows T-104 240V 24 hour is correct replacement timer
http://www.intermatic.com/customer%20service/competitive%20cross%20reference.aspx

5) Amazon sells new T104 for 50$ which is cheaper than some folks are selling the paragon tripper:
http://www.amazon.com/Intermatic-T104-208-277-Volt-Mechanical-Switch/dp/tags-on-product/B000BQOX88

6) Change-over wiring from Paragon 4004-20 to T-104:
Hot wires from breakers. Paragon terminals 1 and 4. Intermatic terminals 1 and 3
Load wires. Paragon terminals 2 and 3. Intermatic terminals 2 and 4.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

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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.

Feb 08, 2011 | Hardware & Accessories

1 Answer

Not keeping correct time


You posted under Paragon 4001-00 120Volt SPST timer

1) If timer is not keeping correct time, generally you need to buy new clock motor.
However Paragon is no longer making timers and parts, except for defrost timers.
4001-00 is not defrost timer.
http://waterheatertimer.org/Paragon-timers-and-manuals.html#Paragon4000

2) You probably need to replace timer
Intermatic cross reference shows T101 timer is correct replacement.
http://www.intermatic.com/customer%20service/competitive%20cross%20reference.aspx

3) Amazon sells T101 for $43.
This price is a lot lower than trying to find somebody who has specific Paragon clock motor
http://www.amazon.com/Intermatic-T101-Hour-Dial-Timer/dp/B00002N5FN

4) Grainger and many other places sell T100 series replacement trippers and motors.
No worry about defunct product

5) Wiring for T101 appears below:
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T101

Cross-over wiring is as follows:
Paragon terminal 1 goes to T101 terminal 1
Paragon terminal 2 goes to T101 terminal 2
Paragon terminal 3 goes to T101 terminal A

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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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Jan 27, 2011 | Paragon 4001-00 24-hr Timer Control 120v...

1 Answer

On a Paragon 8145-20 Defrost Timer, I know you land the refrigeration circuit on terminal 4, the heater on terminal 3, but what goes on terminal "X" and terminal "N"


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

Terminal N is 2nd wire needed to complete circuit.
In 240V 8145-20, there are two hot wires.
One Hot connects to terminal 1, with jumper to terminal 2.
Second Hot connects to terminal N, and this will power the clock motor and timer.
Terminal X is for temperature or pressure termination switch.

Defrost cycle works like this:
Timer is running but switched OFF.
Refrigeration fan is ON.
Timer switches ON, defrost cycle begins.
Refrigeration fan turns OFF.
Hot gas defrost turns ON.
When temperature-or-pressure limit switch reaches trip point, it switches timer OFF.
Refrigeration fan turns ON again.
Hot gas defrost turns OFF.

Aug 01, 2010 | Paragon 8145-20 Defrost Timer

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