Honeywell RTH221B1021 Quick Installation Guide

5 69-2448ES—03
RTH2300/RTH221
Connect Wires (typical wiring)
Loosen the terminal screws using a screwdriver, insert 2.
the wires, then tighten the screws.
Push any excess wire back into the wall opening.3.
Labels don’t match?
If a wire does not match any terminal designation, see next page.
5
Match each labeled wire with the terminal having the 1.
same letter.
O/B Y RC R G W
M32155
A
REMOVE JUMPER
IF YOU HAVE BOTH
R AND RC WIRES

Honeywell RTH221B1021 Specifications

General

Type	Non-programmable
Display	Digital
Power Source	Battery
Temperature Control Range	40°F to 90°F (4°C to 32°C)
Stages	1 Heat/1 Cool
Voltage	24V
Backlight	No
Compatibility	Single-stage heating and cooling systems