Honeywell RTH2300/RTH221 Owners Manual

About Honeywell RTH2300/RTH221

Honeywell RTH2300/RTH221 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

Table of Content

Installation

Installation................................................3
Advanced Installation.................................8

About your new thermostat

Controls and Home screen
quick reference........................................10
Preset energy-saving schedules................11

Programming and operation

Setting the clock......................................11
Adjusting program schedules....................12
Overriding schedules temporarily................13
Overriding schedules permanently..............13
Compressor protection..............................14
Replace batteries......................................14

Appendices

Troubleshooting........................................15
Limited warranty.......................................16

Readmore and Download Honeywell RTH2300/RTH221 Manual PDF Below

Honeywell RTH2300-RTH221 Owners Manual