Honeywell RTH221B1021 Quick Installation Guide

RTH2300/RTH221
15 69-2448ES—03
WIRING ASSISTANCE TROUBLESHOOTING
When correct setting is selected, press the s and t
buttons to save any changes and exit the menu.
Compressor Protection
Press the s or t button to select compressor protec-
tion:
Damage can occur if the compressor is
restarted too soon after shutdown. This fea-
ture forces the compressor to wait 5 minutes
before restarting. During the wait time, the
message Cool On or Heat On flashes on the
screen. When the safe wait time has elapsed,
the message stops flashing and the compres-
sor turns on.
1 On
0 Off
4
1

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