Old Mercury Thermostat Wiring Diagram. Old honeywell thermostat wiring diagram source. They connect to a two wire thermostat generally a mechanical thermostat with a mercury filled ball connected to a coiled bi metal strip.
I am replacing an old mercury trane weathertron baystat 240 with a wiring info to replace weathertron bay28x139 with honeywell trane weathertron heat pump thermostat youtube. They connect to a two wire thermostat generally a mechanical thermostat with a mercury filled ball connected to a coiled bi metal strip. Remove the motherboard of the old 2 wire thermostat and put the new 2 wire thermostat in its place.
Print the cabling diagram off and use highlighters to trace the signal.
Costing as much as 300000 per spill clean contractors and homeowners want to avoid a costly cleanup. Wiring diagram sheets detail. Honeywell mercury thermostat wiring diagram medium size of how to wire a room thermostat to a boiler relocate thermostat without wires. I just bought a new digital honeywell thermostat th i am replacing an old mercury one the writing in the back is janitrol hpt thermostat wiring colors.