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We have the heat pump unit and Coleman digital thermostat in our unit. I have noticed that when I turn on the electric heat, that the furnace comes on and runs for some time. Is this normal? I have had the furnace come on in the middle of the night when the heat pump was selected on the thermostat. Does it see that the basement is getting to cold and bring the furnace on to protect the stuff down there? Just wondering if anyone else’s works this way. Thanks for your replies.Posted: 11:00 AM – Dec 25, 2012Maybe this will help with your question…..I have the same unit and love the wayit operates…..its seems pretty smart! Merry Christmas! Phillip
The lower the outside temperature the less effective the unit is as a heat pump. That’s why most units don’t work below about 37*F. In our case the gas furnace “assists” the heat pump if the set temperature is more than 4*F below the ambient indoor temperature and over 37*F outside. The gas furnace will blow heat through the floor registers and the heat pump will blow warm air through the ceiling vents. Once the set temp is met the gas furnace will shut off and the heat pump will maintain the set temp.
If the outside temp is less than 37*F the heat pump will attempt to run for 3 cycles. If the outdoor sensor determines the outdoor temperature is cold enough to frost over the cooling coils it shuts down the unit. The thermostat will allow the heat pump to attempt 3 starts before it will turn it off and the gas furnace will take over.
Posted: 11:35 AM – Dec 25, 2012Thank you for the reply. It sounds like some one read the owners manual. Guess I might need to do that sometime That does make a lot of sense.Posted: 11:41 AM – Dec 25, 2012You are most welcome. Yeah, I’m one of those guys I HAVE to know how everything works! LOL PhillipPosted: 3:15 PM – Dec 25, 2012Thanks for that explanation
The other night we were putting away more “STUFF” (where did it all come from?) and noticed that there was warm air from the floor as well as the ceiling…
Now I don’t have to read that sectionPosted: 4:54 PM – Dec 25, 2012I am not sure which heat pump they used in the 2012 without checking. But the assist sounds great if that is what it is supposed to do. On my unit the thermostat has a selection for the heat pump and a selection for the furnace. They are separate.Posted: 7:43 PM – Dec 26, 2012My 2010 does the assist thing too.Posted: 8:12 PM – Jan 20, 2013I have a similar, yet somewhat different issue.
I’m plugged in at home, so I figured I’d save propane and use the electric heat while doing some setup. It had worked before, but now there is a problem. The last time I remember it working, I had the heat and the fireplace on at the same time. The 30 amp breaker in my (home) panel couldn’t handle that, and it tripped. Now, when I try to use it, it goes on for a couple of seconds, then the gas furnace kicks in and the electric shuts off. I thought it was an outside temp issue, but today it was in the mid forties, and it still didn’t work.
Any ideas?
Posted: 9:20 PM – Jan 20, 2013Papa,
Turn off the 5er breaker for the hot water heater!
Posted: 10:06 PM – Jan 28, 2013Running_Bear wrote:I am not sure which heat pump they used in the 2012 without checking. But the assist sounds great if that is what it is supposed to do. On my unit the thermostat has a selection for the heat pump and a selection for the furnace. They are separate.The selector switch is there so that if you are boondocking, you are able to have heat via the furnace which runs on the 12V DC battery service. I have the Coleman on my 2012 and love the way it works. Keeps us cozy and saves the propane without needing to think about it.
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