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Old 05-21-2015, 01:49 AM   #1
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Coleman heat pump

I just purchased a used - none working Coleman 15000 btu heat-pump. I am looking for a wiring diagram (Diagram in the unit is very bad). anybody have one?

Model # 9001C876, serial 030421050,

This is what it look like; Airxcel | RV Products | Rooftop Air

Please... with all due respect; I am not interested in debating the merits of fixing or junk it. I only wanted the wiring diagram, appreciated if you can help me out.
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Old 05-21-2015, 02:00 AM   #2
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Sounds like this is going to be a nice experiment.

I would direct you to the colman web site, since I can't upload the ones I have.
Plenty to chose from there.


DTW
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Old 05-21-2015, 02:16 AM   #3
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Quote:
Originally Posted by Dtwallace View Post
Sounds like this is going to be a nice experiment.

I would direct you to the colman web site, since I can't upload the ones I have.
Plenty to chose from there.


DTW
I've been refrig tech past 30 years (home and commercial). so no problem for me. Ever since I was born - I like to fix things.

I been googling for hours, went to many sites, just can not find what I am looking for. Can you provide a link? please.
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Old 05-21-2015, 02:30 AM   #4
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I found what I am looking for.

Anybody else need that information? here is a link.

http://www.rvcomfort.com/pdf_documen...6470_copy1.pdf
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Old 05-21-2015, 04:42 AM   #5
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Dan,
check bryantrv.com..
my macbook is broken, i am using a tablet so i don't have access to my bookmark resources.
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Old 05-22-2015, 11:18 AM   #6
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Quote:
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I found what I am looking for.

Anybody else need that information? here is a link.

http://www.rvcomfort.com/pdf_documen...6470_copy1.pdf
Thanks for posting that info Dan.

Thats exactly the one I've been looking for .....

I was looking for a way to trick my heat pump into working at temps below 40F.
I see what I need to do now.

DTW
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Old 05-22-2015, 03:25 PM   #7
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Quote:
Originally Posted by Dtwallace View Post
Thanks for posting that info Dan.

Thats exactly the one I've been looking for .....

I was looking for a way to trick my heat pump into working at temps below 40F.
I see what I need to do now.

DTW
Not wise to goes below 40F.
1) If air temp is at 40F, that means Freon temp at about 25F (also coil is at 25F), moister will accumulate on fins, restricting air flo, eventually a cake of ice on coil.

2) System is designed to run at certain hi- pressure range and certain low pressure range. Once un-balance, efficiency suffer. My advice is set it at factory spec. (Exception; you are an engineer and is doing it for experiment)
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Old 05-22-2015, 06:46 PM   #8
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I have one of those gizmos. It works great but mine won't shut off when it gets too cold and ends up tripping the breaker. What I would like is a way to direct the propane to come on at a certain temp. My existing thermostat won't do it. It's the thermostat form coleman that is designed for use with the roof top heat pump and propane furnace. I don't know why they use lockouts, etc. instead of set points.
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Old 05-23-2015, 02:27 PM   #9
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Quote:
Originally Posted by Pirate View Post
I have one of those gizmos. It works great but mine won't shut off when it gets too cold and ends up tripping the breaker. What I would like is a way to direct the propane to come on at a certain temp. My existing thermostat won't do it. It's the thermostat form coleman that is designed for use with the roof top heat pump and propane furnace. I don't know why they use lockouts, etc. instead of set points.
My best Guess; 1) Wrong thermostat 2) Mis-wired thermostat, 3) bad thermostat 4) bad / stuck contactor.

1) Location of thermostat; Example; Let say it is located by window - in direct path of sun light; Thermostat temp is probably 10F higher than The rest of your coach. Even thought couch temp is 75F, but thermostat think it is 85F.

2) wrong or mis-wired thermostat; You need a two stage heating thermostat. Inside this thermostat, you should see terminal Labled; W1, W2. W1 should be wired to air condition unit, W2 should wired to Furnace.

3) bad thermostat; in this case simply replace it.

4) Stuck main contactor. - replace it.

My advice, if don't understand above, you should not attempt to do this yourself. Have a qualify ac technician look at it.

(In Phoenix, Az. we normally charge $60.00 to check out, FREE if we do the work. I don't know where you live, Chances are good, you can have this fix very cheap)
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Old 05-23-2015, 04:13 PM   #10
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Quote:
Originally Posted by Dan Wong View Post
My best Guess; 1) Wrong thermostat 2) Mis-wired thermostat, 3) bad thermostat 4) bad / stuck contactor.

1) Location of thermostat; Example; Let say it is located by window - in direct path of sun light; Thermostat temp is probably 10F higher than The rest of your coach. Even thought couch temp is 75F, but thermostat think it is 85F.

2) wrong or mis-wired thermostat; You need a two stage heating thermostat. Inside this thermostat, you should see terminal Labled; W1, W2. W1 should be wired to air condition unit, W2 should wired to Furnace.

3) bad thermostat; in this case simply replace it.

4) Stuck main contactor. - replace it.

My advice, if don't understand above, you should not attempt to do this yourself. Have a qualify ac technician look at it.

(In Phoenix, Az. we normally charge $60.00 to check out, FREE if we do the work. I don't know where you live, Chances are good, you can have this fix very cheap)
You are wrong on all 4 of points. It is wired up correctly, it is the right thermostat.
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Old 05-23-2015, 09:56 PM   #11
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Quote:
Originally Posted by Pirate View Post
You are wrong on all 4 of points. It is wired up correctly, it is the right thermostat.
Sorry, those are just guess w/o actually looking at the problem.

Just couriers, what was the problem / fix ? if you don't mind sharing.
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