Honeywell RTH8580 Thermostat for Replacement

[capnbobby]

I have to replace my thermostats as one has LED failure and does not indicate proper temperature.

My Heating System is: Goodman GMN95/GCH/95 GCH9 Gas Fired Warm Air Furnace and Air Conditioner.

EWC TB226 Model NCM300 Zone Control Panel using Two (2) zones upstairs and main floor

Current Thermostats: RobertShaw RS2110 Battery Powered 3A. (two)


I wish to replace current thermostats with Honeywell RTH 8580 WF requiring 24Volt power.


Current set up has Robertshaw thermostat terminal blocks: [Y] [R] [G] [W] [RC/O] [RH/B] The current wires go to:

yellow, Green, White, Red to RC/O and a red "jumper" from RC/O to RH/B. There is NO wire connected to [R]

There is an available "blue" wire" which is NOT connected.

Current set up in the NCM300 control panel Thermostat terminal blocks for each of the thermostats do NOT have a wire connected to the [C] terminal. There is a Blue wire available coming from the thermostat.

I wish to be sure that connecting the available "Blue" wire to the [C] terminals at both the control panel and the thermostat will provide the correct wiring connection and the 24 volt power required for the thermostats.

I am new to the forum and




Thank you,
capnbobby

[Erik W.]

yes connecting the blue wire to "C" on both the panel and the thermostat will give you 24 volt power to operate the thermostat.

Erik Wnoroski
EWC Controls, Inc.
385 State Route 33
Englishtown, NJ 07726
800-446-3110 ext 483