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Old 01-08-2017, 05:12 PM   #1
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Coach Heater Low out put when -10

I have a 2002 Country Coach Magna 36' triple slide that is new to me and I have the Hurricane CO45D in it. I have it all serviced and up and running, but on my first cold test the temp inside the coach got down to 45deg. It was -10 outside but I would think it would do better that that.



I found that there is a valve in the system that is failing and allowing coolant to back feed into the engine and heat the engine block. I assume this is my problem, but I can not find where to get this valve. Any help?
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Old 01-08-2017, 09:25 PM   #2
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I would give Kevin Waite former Country Coach Tech a call. Have your coach number handy then after the call you could send him a picture of the part. I just got a ECM oil pressure switch from him that Cat could not find, had the part in 5 days and it was a Cat part.
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Old 01-09-2017, 09:56 PM   #3
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I have a 2001 CC Affinity 42 tag with a hurricane heater. We are work camping in Leavenworth WA and -10 here is a warm night. The hurricane system can overheat this coach even on the coldest nite. I'm not sure about the valve in the picture but my hurricane system heats the entire engine cooling system. The engine expansion tank gets up to approx. 140deg. And the engine block warms to about 110deg. I've been told on the forum that this a normal situation. When the furnace starts it takes about 5 min before heat is produced but after that I set the thermostats to 70deg and the system cycles to hold that temp. Sorry I can't be more helpful. Jim Barone
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Old 01-10-2017, 05:19 PM   #4
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[QUOTE=James Barone;3410563]I have a 2001 CC Affinity 42 tag with a hurricane heater. We are work camping in Leavenworth WA and -10 here is a warm night. The hurricane system can overheat this coach even on the coldest nite. I'm not sure about the valve in the picture but my hurricane system heats the entire engine cooling system. The engine expansion tank gets up to approx. 140deg. And the engine block warms to about 110deg. I've been told on the forum that this a normal situation. When the furnace starts it takes about 5 min before heat is produced but after that I set the thermostats to 70deg and the system cycles to hold that temp. Sorry I can't be more helpful. Jim Barone[/QUOTE

On my 2002 Magna, the Hurricane heats the expansion tank only. Not the engine block. It has an electric block heater for that purpose. Some are set up so the Hurricane heats the block

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Old 01-28-2017, 07:32 AM   #5
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After finding that my Hurricane was not running efficient enough I started with it. A new burn chamber and fuel nozzle I am running clean and putting out big heat. The hurricane was putting out some black soot and deposites before.

Thank you International Thermal Research | Advanced Diesel Heating & Hot Water Solutions for the fast parts and techinal assistance.

The valve is still bad, but the Hurricane puts out so many BTU I am at -10 now outside, and 72deg. inside with engine tempatures of 54deg.

No heating problems here.

With a small circulation fan in the lower portion of the water bay I am not freezing my pipes either.
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Old 01-28-2017, 09:44 AM   #6
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Are you sure the valve in your picture is part of the Hurricane system and not part of the OTR heater? On my coach the Hurricane system uses green hoses while the OTR uses black hoses. My system also heats the block and water heater.

Have you checked the circulation pumps? I have two for Hurricane and one for the OTR heater.

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Old 01-28-2017, 02:34 PM   #7
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Quote:
Originally Posted by TR4 View Post
Are you sure the valve in your picture is part of the Hurricane system and not part of the OTR heater? On my coach the Hurricane system uses green hoses while the OTR uses black hoses. My system also heats the block and water heater.



Have you checked the circulation pumps? I have two for Hurricane and one for the OTR heater.



Bill

I agree with that valve looking like the OTR heater, I have a connection similar just forward of the trans.

Also with the fan speed knobs on the inside above the door I have two others switches.

One says Interior Heat Exchangers which is pretty self explanatory.

The other says Central Heat Control which I thought with that turned off it would not heat the block when parked. Is this not correct?


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Old 01-29-2017, 10:58 AM   #8
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Quote:
Originally Posted by bneukam View Post
I agree with that valve looking like the OTR heater, I have a connection similar just forward of the trans.

Also with the fan speed knobs on the inside above the door I have two others switches.

One says Interior Heat Exchangers which is pretty self explanatory.

The other says Central Heat Control which I thought with that turned off it would not heat the block when parked. Is this not correct?


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Brett,

My HH system loops the coolant from a connection on the back of the engine head and returns at the water pump inlet tube. This is the same for a different OTR heater loop. These four areas are where I've installed gate valves so I can shut down one or both systems.

After driving for about an hour I have hot domestic water. All my HH switches are off until I use the heater, so I would think the motor coolant pump is circulating the HH coolant. The OTR heater coolant circulates the same way (even after I removed the school bus pump).

CC made different versions of th HH system, this is how mine works.
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Old 01-30-2017, 07:22 AM   #9
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Would be helpful to post the HH model when in this discussion as there are differences. Thanks. Safe travels. 2003 45XL Hurricane.
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