Honeywell TH5110D1006/U Non-Programmable Thermostat User Manual

Introduction

This manual provides instructions for the installation, operation, and maintenance of your Honeywell TH5110D1006/U Non-Programmable Thermostat. This thermostat is designed for simple and reliable control of your heating and cooling system.

It features a large, clear backlit digital display for easy viewing of both room and set temperatures, and offers basic control for 1 Heat/1 Cool conventional systems and heat pumps without auxiliary heat.

Safety Information

Always turn off power to the heating/cooling system at the main fuse or circuit breaker panel before installing or servicing the thermostat.
Installation should be performed by a qualified technician.
Do not short (jumper) across the electrical terminals on the thermostat. This can damage the thermostat and/or the heating/cooling system.
This thermostat is designed for 24 Vac conventional and heat pump systems or 750 mV heating systems. Ensure compatibility with your HVAC system.

Product Overview

Figure 1: Honeywell TH5110D1006/U Non-Programmable Thermostat. This image shows the front view of the thermostat with its digital display and control buttons.

The Honeywell TH5110D1006/U thermostat features a large, clear backlit digital display for easy viewing. It includes simple push-button controls for adjusting temperature, fan settings, and system mode. The unit is dual-powered, operating on either 2 AA batteries or hardwired to your system.

Setup

1. Installation

For detailed wiring instructions, please refer to the installation guide provided with your thermostat packaging. It is recommended that a qualified HVAC technician performs the installation to ensure proper wiring and system compatibility.

2. Powering the Unit

The thermostat can be powered in two ways:

Battery Powered: Requires 2 AA alkaline batteries (not included). The thermostat features an easy-access battery replacement door. A "Replace Battery" indicator will appear on the display when batteries are low.
Hardwired: Can be hardwired to your HVAC system for continuous power. Batteries can still be installed as a backup.

3. Initial Configuration (Installer Setup)

After installation, the thermostat may require initial configuration to match your specific HVAC system (e.g., conventional or heat pump, gas or electric heat). This is typically done through an "Installer Setup" menu, often accessed by holding specific buttons (e.g., Fan and Up buttons) for a few seconds. Refer to your detailed installation manual for specific steps to configure system type and other advanced settings.

Operating Instructions

1. Adjusting Temperature

Use the Up (▲) and Down (▼) arrow buttons on the right side of the thermostat to set your desired temperature. The display will show both the current room temperature and your set temperature.

2. Fan Settings

Press the Fan button (left button below the display) to cycle through the fan modes:

Auto: The fan runs only when the heating or cooling system is actively operating. This is the most energy-efficient setting.
On: The fan runs continuously, regardless of whether the heating or cooling system is active. This can help with air circulation.

3. System Mode

Press the System button (right button below the display) to cycle through the system modes:

Cool: The thermostat will activate your cooling system to maintain the set temperature.
Heat: The thermostat will activate your heating system to maintain the set temperature.
Off: Turns off both heating and cooling systems. The fan can still be operated manually if set to "On".
EmHeat (Emergency Heat): (If applicable to your system) Used for heat pumps when the outdoor temperature is too low for the heat pump to operate efficiently, or if the heat pump requires service. This mode uses auxiliary heat.
Auto: (If applicable to your system) The thermostat automatically switches between heating and cooling to maintain the set temperature range.

4. Backlight Feature

The large digital display is backlit for easy viewing, especially in low-light conditions. The backlight typically activates when any button is pressed and remains on for a short period.

Maintenance

1. Battery Replacement

When the "Replace Battery" indicator appears on the display, it's time to replace the 2 AA alkaline batteries. The thermostat features an easy-access battery compartment, usually located on the side or front of the unit. Slide open the compartment, remove old batteries, and insert new ones, ensuring correct polarity. The thermostat settings are typically retained during battery replacement if done promptly.

2. Cleaning

Clean the thermostat's exterior with a soft, damp cloth. Do not use abrasive cleaners or solvents, as these can damage the finish or internal components.

Troubleshooting

Problem	Possible Cause	Solution
Display is blank	No power, dead batteries.	Replace batteries or check circuit breaker/power supply.
No heating/cooling	Incorrect system mode, thermostat setting too high/low, power issue.	Verify system mode (Heat/Cool), adjust set temperature, check power. If issue persists, contact a qualified technician.
Fan runs continuously in Auto mode	Fan setting is "On" instead of "Auto".	Press the Fan button to select "Auto".
Temperature reading seems inaccurate	Thermostat location, drafts, or direct sunlight.	Ensure thermostat is not in direct sunlight or near drafts. Allow time for temperature stabilization.

If you encounter problems that cannot be resolved using the troubleshooting steps above, please contact a qualified HVAC service professional.

Specifications

Model: TH5110D1006/U
Brand: Honeywell
Dimensions: 1.5"D x 3.4"W x 4.5"H
Controller Type: Push Button
Special Feature: Non-Programmable (Note: While some product data may list 'Programmable', this model is specifically designed as a non-programmable thermostat for straightforward operation.)
Color: Premier White
Compatible Systems: 1 Heat/1 Cool Conventional Systems, Heat Pumps (no auxiliary heat)
Power Source: Dual-powered (2 AA batteries and/or hardwire)
Voltage: 30 Volts (for hardwired connection)
Display Type: Digital with Backlight
Screen Size: 1.5 Inches
Mounting Type: Wall Mount

Official Product Videos

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Warranty and Support

For warranty information or technical support, please refer to the documentation included with your product or visit the official Honeywell website. You can also contact Honeywell customer service for assistance with your TH5110D1006/U thermostat.

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