hey guys. This past may i installed a lennox xp15, matched with a lennox el furnace with propane and a honeywell pro 6000. We can just the heat pump for the cooler spring days, and just recently had the gas company come install the tank, and run the lines to the furnace.
So, im heading up there tomorrow to set up the system for winter operation.
Now please keep in mind, that this is a cottage, and people are only here on the odd weekend, so for the majority of the winter, the system is going to be just used to keep cottage water lines from freezing.
So i have already determined i will set my cutout at 2 degrees C for our switchover. I have installed an outdoor sensor for the switchover.
A couple questions i need answers for.
1) Thermostat set backs.
Considering we will not be here most of the week, if i set my thermostat to maintain lets say, 12 dgrees C, is this going to be ok? Then when someone comes up for the weekend, they can just jack it up to 19C, this would bring on my propane.
2) New Tank start up
So the gas company never fired the furnace after installing tank, all i know is the tank is full. Whats involved in firing it up for the first time, do i just open up my shutoff valve, and measure my "wc at the burners? And then purge it until LP is present?
3) Automatic backup
If i have our system set for heat pump, and propane back up, if there is an issue with the heat pump, or the furnace, will the system automatically run the backup? Let say the furnace locks out due to a press. switch fault, will the heat pump automatically kick in and humm away? My biggest concern here is having a breakdown on my propane, and pipes freezing, as we just did 100,000$ of remodeling.
4) im thinking of possibly setting my switchover to -5C, any comments on this?
Also, the furnace is a 2 stage, should i run a jumper from w1 to w2 to maintain my 11"wc? or is LP ok to run on low fire?