Re: choice for heat when temps below freezing
Reply #1 –
Yahoo Message Number: 1225
I've had my 2002 coach only since October so I'm not that well versed on the hydronic but here is the way I understand it. If I'm wrong I'm sure someone will set us both on the right track.
The thermostat is set on either FURNACE or HEAT PUMP. It can't be split. The heat pumps will heat the cabins as long as the outside temp is above the low 40s. Below that the furnace has to be used. The Hurricane controls must be on for it to work. That means for both the cabin and the plumbing bay. The thermostat in the cabin controls the temp in the cabin... not the bay.
There is an access panel in the plumbing bay that gives you access to the water pump and the drain valves in addition to the thermostat for the heat in the plumbing bay. It is a little black knob (in my coach) on the side wall of that little compartment... toward the front of the coach. It's a little difficult to read but is marked with degrees F. I had to adjust mine up a couple of notches to keep the compartment above freezing..... last night it did not go below 35.
Hope that helps answer your question...... and I would suggest that you do what I hate to do..... read the manual. I read them all.... cover to cover.