Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater

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Replacing Old York TS to HoneyWell RTH230B

I want ot replace YorK thermostat to Programable Honeywell RTH230
York has these many wires
R - red
G - green
Y - yellow
O - orange
H - black
W - white
B - blue
X - brown

While RTH230 Has only five terminals

Rh Heating power supply
Rc Cooling power supply
W Heating signal
Y Cooling signal
G Fan

Rh and RC are jumperd together. Please let me know What wire need to connect to Rh and Rc.

Thanks

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  • 340 Answers

Rh is hot for heating rc is hot for cooling looks to me like ya need a heat pump stat some thing to control the reversing valve.Tom

Posted on Jun 18, 2009

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