Heat Pump Question

[coach]

Today I put the "emergency heat" on which cuts out the heat pump and turns on the heating strips and heat comes out of the vents which means they are working. It appears that the heat pump is not communicating with the heat strips to come on when the heat pump can't keep up with the demand. Is there a relay or something that tells the strips to come on?

It's generally done at the thermostat. Thermostats for heat pumps have dual bulbs and the second one starts a second stage, the electric resistance heat. The second stage bulb is probably adjustable. That's why moving the temperature setting up on a heat pump will start the auxiliary heat, which is more costly than the heat pump. But if you need the auxiliary heat you want it to come on. I have adjusted the second stage bulb before. It's a trial and error thing, but if you understand how the second bulb works you'll figure it out. It's possible you need a new thermostat.
Edit to add the bulb is a tiny glass bulb with mercury on it that opens and closes the circuit with contacts at each end. The tilting of the bulb is what makes it work. The second bulb should have a screw for adjustment.

 

[joyce19]

Hey guys,

I have a query about a Heat pump, What's the distinction between "aerial' warmth pumps and "earth-to-air" warm pumps? Are warm pumps proficient? and also the last question is How would I work a warmth draw in winter...?
Please solve my queries.

Thank you in advance.

 

[blume357]

Original question in this post was from over a year ago... you might be better just starting a new post here.... I can't help you with your question because I have never heard of this aerial and earth thing.