more info here handle multiple zones and provide a cushty atmosphere for a large number of occupants concurrently.If you need to do, eyeball the vial to make certain it is completely straight. You might require to utilize a level. Try to be capable to regulate the vial with your fingers, but bear in mind there’s real mercury inside of, which need to by no means are available contact with your pores and skin. Be very very careful!Should you be nevertheless getting two unique readings, continue on adjusting the calibration right up until you’re pleased with The end result. If you’ve adopted all of the ways and you still can’t calibrate read more the thermostat properly, Call your area electrician or HVAC technician.