Honeywell RTH2510 Series Operating Instructions

Operating Manual
69-2601ES—01 20
Temperature
settings do not
change
Make sure heating and cooling temperatures are set to acceptable ranges:
• Heat:40°to90°F(4.5°to32°C).
• Cool:50°to99°F(10°to37°C).
“Cool On” or
“Heat On” is
flashing
• Compressor protection feature is engaged. Wait 5 minutes for the system
to restart safely, without damage to the compressor (see page 15).
“Heat On” is not
displayed
• Set the System switch to Heat, and set the temperature level above the
current room temperature (see page 7).
“Cool On” is not
displayed
• Set the System switch to Cool, and set the temperature level below the
current room temperature (see page 7).
In case of difficulty

Honeywell RTH2510 Series Specifications

General

Display Type	Digital
Programmable	Yes
Power Source	Battery
Battery Type	AA Alkaline
Number of Batteries	2
Temperature Control	Digital
Compatibility	Single Stage Heating and Cooling Systems
Stages	1 Heat/1 Cool
Voltage	24V
Temperature Range	40°F to 90°F (4°C to 32°C)
Programming Options	7-Day, 5-2 Day
Display	Backlit
Weight	0.5 lbs (227 g)