Honeywell RTH2300 Quick Installation Manual page 2

Quick Installation Guide
Identify System Type
This thermostat is compatible with the following systems:
• Gas, oil or electric furnace
• Central air conditioner
• Hot water system with or without pump
• Millivolt system
• Central heating and cooling system
• Heat pump without auxiliary/backup heat
This thermostat cannot be used on heat pumps with
auxiliary/backup heat or on multistage systems.
69-2448EF—03
Do you need assistance?
We are here to help.
Call 1-800-468-1502.
ii