Honeywell RTHL3550D Installation Guide

Honeywell RTHL3550D Installation Guide

The Honeywell Deluxe non-programmable thermostat offers simple push-button operation and premium features such as automatic shut-off and precise comfort control. An easy-to-use programmable digital flashlight with a large digital display back and push-button operation. Additional features such as the ability to switch from automatic heating to cooling, precise comfort control and DIY installation make this easy to access and flexible.

Honeywell RTHL3550D Spesification

• Product Number: RTHL3550D
• Product Dimensions: 5.8 x 3.6 x 1.5 in.
• UPC: 085267965491
• MPN: RTHL3550D1006
• Easy to use
• Large backlit digital display
• Display options include degree Celsius or Fahrenheit temperature
• Easy-access battery replacement
• Set point retained in memory (in the event of power outage)
• One-year warranty
• DIY installation

Installation Honeywell RTHL3550D is Easy

• Label wires and remove your old thermostat
• Install and wire your new thermostat
• Set your new thermostat to match your heating/cooling system

– It is preset for the most common system

If your system type is:

• Multistage Heat and Cool
• Heat Pump* without Backup Heat
• Heat Pump* with Backup Heat
• Heat Only
• Cool Only

Continue with advanced installation
on page 11 to match your thermostat to your system type. *Heat Pump—an air conditioner that provides cooling in the summer, and also runs in reverse in the winter to provide heating. If you are not sure of your system type or if you have other questions, call us toll-free at 1-800-468-1502.
This thermostat works on 24 volt or 750 mV systems. It will NOT work on 120/240 Volt systems.

Advanced Installation
System setup........................................................................12
Wiring...................................................................................22
Troubleshooting....................................................................25
Customer assistance............................................................27
Limited warranty...................................................................28

Readmore and Download Honeywell RTH6580WF User's Guide PDF