muskie
New Member
I have a lennox am 30 and a newmac add on wood furnace. I currently have 2 thermostats hooked up. I am using the wood furnace as a main source of heat and the am 30 as a back up. My question is how do I wire the thermostats up so that when the wood furnace calls for heat only the fan on the am 30 comes on? As it is now, the circulator pump also comes on. Both thermostats are 1 heat and 1 cool. They both have a auto or manual fan option also. The am 30 has w,r,y,c,g and the wood add on has r,w,g,t,t. Any help you could provide would be greatly appreciated.