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by mgseal
Mon Sep 23, 2019 6:12 pm
Forum: Help and Advice
Topic: REplace HAI RC-80 Thermostat with Nest Gen3
Replies: 1
Views: 8128

Re: REplace HAI RC-80 Thermostat with Nest Gen3

The HAI RC-80 is a device that attaches to your home HAI system for control from your home alarm keypad and control board. those additional 4 wires go to the alarm panel for that integration. If you swap out the thermostat to a Nest or any other type of thermostat other than the one designed to be ...