Thermostat problems

Bill_4

Ive got a customer with a new Honeywell Round thermostat,he sets it at 70' but it comes on at 64' and goes off at 68' any ideas? Bill

ed wallace

tstat

can only be 2 things faulty tstat or heat anticapater needs setting you would need a micro amp tester to set heat anticipater probably easier to check setting on old tstat or put in a digital tstat

hr

Got it mounted level?

If it is a mercury type stat it needs to be level. There is a place on the backing plate to place a level.

hot rod

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Unknown

Thermostat

1. Is it level if mercury it has to be level.

2. What is the thermostat controlling, gas valve, zone valve, relay, vent damper what ever it controls the anticpator has to be set to match the amperage draw of that control.

3. Is the thermostat in a location to sense average temperature in the facility.

4. Last of all is it calibrated, get out your calibration wrench and calibrate it to match the measured room temperature.

If none of that works return it as it is defective.

Boilerpro

Mulitpliers for anticipator

Scorched air: 1 times amperage;
Forced hot water baseboard: 1.4 times;
Gravity hot water(including pumped conversions)/ steam: 2 times;
Radiant; ? (probably 2 times)

Boilerpro