Lux Products DMH110b User Manual

1
Thank you for your confidence in our product. To obtain the best results from your investment, please read these
instructions and acquaint yourself with your purchase. Follow the installation procedures carefully, and save these
instructions for future reference. This will save you time and minimize the chance of damaging either the thermostat or
the systems that it controls.
This thermostat can be used with most single-stage 24 volt: gas, oil or electric heating and cooling systems, single-stage
heat pumps, or gas Millivolt heating systems.
It cannot be used with: 3-wire zone valves, 120/240 volt heating elements, or multi-stage heat pumps. Ask your dealer
for other LUX thermostats to control those systems.
WARNING: Use Energizer
®
or DURACELL
®
Alkaline Batteries Only.
E
nergizer
®
i
s a registered trademark of Eveready Battery Company, Inc.
DURACELL
®
is a registered trademark of The Procter & Gamble Company
LUX Products Corporation - Mt. Laurel, New Jersey 08054 - http://www.luxproducts.com
SYSTEM COMPATIBILITY:
• 1-Stage Heat / 1-Stage Cool
• Electronic Accuracy
• Innovative SAVE Feature
• Gas / Elec Fan Option
• Battery Powered Only
• Set Temperature Range 45°F (7°C) degrees to 90°F
(32°C) degrees
• Clean, Attractive Design
• LuxLight
®
Illuminated Display Screen
• Easy to Install
• Large, Easy to Read Display
• F/C Selectable Temperature Display
• Adjustable Temperature Differential / Cycle Rate
• User Temperature Display Calibration
• 5/2 Minute Selectable Minimum Run/Off Time
• On-Screen Low Battery Indicator
• 3-Year Warranty
• No Leveling Required
THERMOSTAT FEATURES:
I N S TA L L AT I O N A N D
O P E R AT I N G I N S T R U C T I O N S
DMH110b Lighted
Non-Programmable Thermostat
5
2154

Lux Products DMH110b Specifications

General

Programmable	Yes
Stages	1 Heat / 1 Cool
Voltage	24V
Battery	2 AA batteries
Type	Digital
Compatibility	Single Stage Heat/Cool
Display	LCD
Power Source	Battery
Temperature Range	40°F to 90°F (4°C to 32°C)

Summary

Thermostat Overview and Compatibility

System Compatibility

Details the types of heating and cooling systems compatible with the thermostat.

Thermostat Features

Lists key features of the DMH110b thermostat, such as display, accuracy, and design.

Thermostat Installation Procedures

Removal of Old Thermostat

Step-by-step guide for safely removing the existing thermostat from the wall.

Thermostat Mounting Location

Guidelines for selecting an optimal location for the new thermostat to ensure accurate readings.

Installation of New Thermostat

Instructions for mounting the new thermostat base plate and attaching the unit to the wall.

Wiring and System Configuration

Wiring Terminal Connections

Guidance on securely attaching wires to the thermostat's terminal blocks.

System Configuration and Setup Options

Explanation of jumper settings for system type, delay, temperature scale, and fan control.

Thermostat Operation

System Mode and Fan Switch

How to operate the HEAT/OFF/COOL switch and FAN AUTO/ON switch.

Temperature Adjustment

Using UP/DOWN buttons to set temperature and the function of the SAVE button.

LCD Display Backlight

Information on the display screen's backlight activation and duration.

Advanced Features and Maintenance

Advanced Features

Details on temperature swing adjustment and manual temperature calibration.

Battery Replacement

Instructions for replacing the thermostat's AA alkaline batteries and recommended brands.

Support and Warranty Information

Technical Support

Contact information and resources for technical assistance with the thermostat.

Limited Warranty

Details on the product's warranty coverage, duration, and limitations.

Mercury Warning and Recycling Notice

Important notice regarding mercury content in older thermostats and proper disposal.

Wiring Diagrams

Wiring Diagram Notes

Key notes and explanations for interpreting the thermostat wiring diagrams.

Heating Only Wiring

Diagram for 2, 3, or 4 wire heating-only systems, including millivolt systems.

1-Stage Cooling Only Wiring

Diagram for 3 or 4 wire 1-stage cooling-only systems.

Specific Wiring Configurations

Conventional System Wiring

Diagram for 4 or 5 wire conventional (non-heat pump) 1-stage heating/cooling.

Heat Pump System Wiring

Diagram for 4 or 5 wire single-stage heat pump systems without auxiliary heat.

Dual Transformer System Wiring

Diagram for 5 or 6 wire systems with two separate 24V transformers for heating and cooling.