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Gaztech
Gaztech, HVAC Technician
Category: HVAC
Satisfied Customers: 455
Experience:  Owner at Gaztech
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I just installed a new Honewell thermostat rth8500d. My old

Customer Question

I just installed a new Honewell thermostat rth8500d. My old Honeywell thermostat was a th8320u. My old thermostat had HEAT PUMP COMPRESSOR LOCKOUT setup function # ***** I can not find this function on my new thermostat. I would set this function to 20. How do I set the new one to 20?
Submitted: 1 year ago.
Category: HVAC
Expert:  Gaztech replied 1 year ago.

Hello, I am here to assist you

Do you have the installers manual?

Customer: replied 1 year ago.
Expert:  Gaztech replied 1 year ago.

OK, just go into system setup

Expert:  Gaztech replied 1 year ago.

Page 13

Expert:  Gaztech replied 1 year ago.

The RTH8500D Thermostat has built-in compressor protection (minimum-off timer) that prevents the compressor from restarting too early after a shutdown. The minimum-off timer is activated after the compressor turns off. If there is a call during the minimum-off timer, the thermostat shows Wait in the display. When the minimum-off timer expires, Cool On or Heat On appears solidly in the display and the compressor and fan turn on

Expert:  Gaztech replied 1 year ago.

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