low voltage system. i have a supplemental heating system running hot water through a coil in the furnace. i want to hook up the blower to come on when it calls for heat, and leave the main thermostat hooked up as is for emergency backup. thanks
2006-12-01 02:28:12 · 3 answers · asked by mongo862001 5 in Home & Garden ➔ Do It Yourself (DIY)
You would need a new thermostat for the hot water coil, when that reaches a certain temperature have it start the blower. If you are using the low voltage you would need the 24 volts to activate a solenoid which would run the 110 to the fan motor.
2006-12-01 03:10:21 · answer #1 · answered by Thomas S 6 · 0⤊ 0⤋
How Many Wires on old Thermostat? You need at least 3 . If You Have that many or more Buy a Heating & cooling Thermostat And follow Direction's That Come with It.
2006-12-01 03:24:58 · answer #2 · answered by bob r 4 · 0⤊ 0⤋
Add a switch to the fan and disconnect it from the thermostat that way you can turn it on any time you want.
2006-12-01 14:48:34 · answer #3 · answered by smakswac 1 · 0⤊ 0⤋