Do you have a question about the Honeywell RTH221 Series and is the answer not in the manual?
Stages | 1 Heat/1 Cool |
---|---|
Voltage | 24V |
Temperature Range | 40°F to 90°F (4°C to 32°C) |
Backlight | No |
Display | Digital |
Power Source | Battery |
Temperature Control | Manual |
Compatibility | Gas, Oil, Electric |
Type | Non-Programmable Thermostat |
Program Periods | Not Applicable |
Specific settings for gas/oil vs. electric/heat pump systems.
Procedure to enter the thermostat's system setup mode.
Specific settings for gas, oil, electric, hot water, and steam systems.
Details on the function and purpose of compressor protection.
Reference chart and important notes for alternative wiring methods.
Special wiring instructions for heat pumps without auxiliary heat.
Steps to fix a blank display or unresponsive heating/cooling system.