Village Plumbing & Home Services

The Cleanest Techs in Town

How to Calibrate Your Digital Thermostat

The thermostat is the “genie” that does your will when you’re operating your house’s heating, ventilation, and air conditioning system. It is even better when the system is governed by a digital thermostat, which may or may not be part of a bigger home utility network interface. However, even the digital thermostat can be a bit off in determining the proper temperature settings, and you do not want the utility bill to rise because of bad readings.

Your contractor can teach you about how to take a more active stance in the care of your HVAC system, starting with recalibrating the thermostat.

Unscrew the thermostat’s main housing and look for either a mercury switch, or calibration screw. The mercury switch is a glass vial filled with mercury while the calibration screw is in the middle of a metal assembly. Adjusting both requires different methods.

For a calibration screw, twist it counterclockwise until you see the metal contacts, then you set the system to room temperature. A mercury switch will need adjusting so that its heating element sticks to a metal contact, then close the housing. However, be gentle in doing so to prevent breaking the vial and spilling the toxic liquid on your body.

Digital thermostats are the modern way to control the HVAC system. Learning how to properly calibrate it helps keep the furnace operating at maximum efficiency.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: