Pretty simple, really. They typically have 3 wires, labelled to match terminals on the furnace, with pass through controls to the AC. Since the furnace fan is used to blow AC.
Buy a programmable and read the instructions. If you need to fish the wire through a wall, that's the the trickiest part.
If you have an OLD furnace, and you still need to ask this, you should probably get a por to do it.
You can learn to install a central heating thermostat on Energysavingtrust. You can also learn how to do it on Doityourself. These websites teach you how to install a central heating thermostat.
The thermostat only opens when it reaches a set temperature. For instance a 195 degree thermostat opens at 195 degrees. Just install the thermostat, and do not mess with it. Install it spring down.The thermostat only opens when it reaches a set temperature. For instance a 195 degree thermostat opens at 195 degrees. Just install the thermostat, and do not mess with it. Install it spring down.
the thermostat is in the coolant cap
Remove old thermostat. Install new thermostat.
Wish side the thermostat is place it inside
It is not hard if you have the proper tools. Drain the radiator and remove the upper hose at the engine. Remove the thermostat housing and install the thermostat. Clean the surfaces and install the new thermostat.
1. Drain the cooling system.2. Remove the lower radiator hose from thermostat outlet.3. Remove the thermostat outlet bolts and outlet. Remove the thermostat.4. Clean the mating surfaces of the radiator outlet and the radiator outlet pipe.To install:1. Install the thermostat.2. Install the thermostat outlet and bolts.3. Install the coolant outlet attaching bolts and tighten the thermostat outlet bolts to 10 ft. lbs. (14 Nm).4. Install the lower radiator hose to thermostat outlet.5. Fill the cooling system.6. Inspect for leaks.
Drain the radiator into a container. Remove the upper hose at the engine end. Remove the 2 bolts in the thermostat housing and remove the thermostat. Clean both surfaces and install the thermostat "O" ring. Install the thermostat ,housing and 2 retaining bolts. Install the upper hose and fill the coolant recovery tank.jd
To install a thermostat on a 1987 Nissan 300ZX, remove the two nuts and one bolt on the lower water neck. Slip off the old thermostat and use a gasket sealant to secure the new thermostat.
Drain the radiator into a container. Remove the upper hose at the engine end. Remove the 2 bolts in the thermostat housing and remove the thermostat. Clean the surfaces and install the thermostat and housing. Install the upper hose and refill the radiator.
Remove the top water line from the radiator to the water pump. The thermostat is found there.
You remove the old thermostat and install a new one.