2.5K views · 42 reactions | Before you install a thermostat, turn the power off by shutting off the breaker and pulling the disconnect to the air handler or furnace. Not shutting off the power in your home before installing a thermostat will result in a blown low voltage fuse. #HVAC #Refrigeration #Cooling #Heating | HVAC School | Facebook

1.7K views · 43 reactions | Humidity or temperature measurements can be affected if you have air coming in behind the thermostat from the wall cavities. Ensure your connections are properly sealed to prevent this from happening. We like to use a little bit of thumb gum for this purpose. #HVAC #Refrigeration #Cooling #Heating | HVAC School | Facebook