Lux DMH110-010 Installation Guide
Contents
1. DMH110a Lighted aoe Non Programmable Thermostat LUX Products Corporation Mt Laurel New Jersey 08054 http www luxproducts com WARNING Use Energizer or DURACELL Alkaline Batteries Only Energizer is a registered trademark of Eveready Battery Company Inc DURACELL is a registered trademark of The Gillette Company Inc 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 SYSTEM COMPATIBILITY 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 THERMOSTAT FEATURES e 1 Stage Heat 1 Stage Cool e Electronic Accuracy e Innovative SAVE Feature e Gas Elec Fan Option e Battery Powered or System Powered with battery backup e Set Temperature Range 45 F 7 C degrees to 90 F 32 C degrees e Clean Attractive Design e LuxLight Illuminated Display Screen e Easy to Install e Large Ea2. cooling system The OFF position will disable both the heating and cooling units AUTO ON FAN SWITCH When this switch is in AUTO the blower fan if present in your system will automatically cycle on and off by itself when heating or cooling is running When in the ON position the blower fan will run constantly with or without a demand for heating or cooling even in OFF mode UP AND DOWN BUTTONS While in HEAT or COOL mode you can use the UP and DOWN buttons to raise or lower the set temperature When the thermostat is powered up for the first time it will use the default set temperatures of 68 F 20 C for Heat mode and 72 F 22 C for Cool mode NOTE when you adjust the temperature using UP and DOWN buttons the change occurs immediately and you do not have to press the SAVE button to accept the changes SAVE BUTTON Reducing the amount of heating and cooling energy you use will directly save you money The SAVE feature allows you to use just one button press to easily decrease the current set temperature by 5F 3 C degrees while in Heat mode or raise the set temperature by 5 F 3 C degrees while in Cool mode When you leave the house simply press the SAVE button one time to put the thermostat into Save mode and the word SAVE will be shown on the screen When you return home press the SAVE button again to cancel the Save mode and return back to the previous set temperature that you were using originally After Save mo
3. unit but is used for both cooing and heating JP2 DELAY CLOSED 5 Minutes default This setting changes the length of time il CLOSED that the system must remain either on or off before it will switch to the alternate on or off state The main purpose of this setting is to provide equipment protection by preventing brief or undesirable frequent on off cycling OPEN 2 Minutes This can be OPEN used to decrease the minimum amount of time that occurs between cycles and may be desired for hot water radiator systems to reduce overshoot JP3 SCALE CLOSED Fahrenheit default All temperature values are displayed in F degrees OPEN Celsius This setting displays all temperature values in C degrees d JP4 FAN This option is located separately from the first three settings shown above GAS CLOSED Gas default This setting lets the heating system itself control the blower fan automatically Types of systems that would typically use the Gas fan setting would be natural gas furnace propane furnace and oil furnace OPEN Elec This setting i runs the system s blower fan when heat is called for and is required for systems that do not control their own fan while in HEAT mode Heat pump systems and units with an electric heating element typically require this setting OPERATING INSTRUCTIONS HEAT OFF COOL SYSTEM MODE SWITCH Set this switch to HEAT to control your heating system and COOL to control your
4. ch as in a corner alcove or behind a door that is normally left open 3 Do not locate the thermostat where unusual heating or cooling conditions may be present such as direct sunlight above a lamp television or radiator or on a wall next to an exterior door or window Do not locate in a damp environment as this can lead to corrosion that may shorten thermostat life If painting or construction work is still ongoing cover the thermostat completely or wait until this work is complete before installation af INSTALLATION OF NEW THERMOSTAT Strip wire insulation leaving only 3 8 in 9 5mm bare wire ends and clean off any corrosion present Fill the wall opening with non combustible insulation to prevent drafts from affecting the thermostat s normal operation 3 Route the wires through the opening in the new thermostat base plate and hold the base against the wall Try to line up the screw holes from the prior thermostat and install the mounting screws 4 If the previous holes cannot be used hold the thermostat base against the wall so that it appears straight and level position the base for best appearance and mark for the new screw holes Attach the base to the wall using the screws provided use the supplied plastic anchors if needed when mounting to a soft material such as drywall mo WIRING TERMINAL CONNECTIONS 1 When attaching the wires to the thermostat please ensure that the bare wire ends are he
5. de has been started you can adjust the energy saving set temperature by using the UP and DOWN buttons in either direction Just like above one more press on the SAVE button will cancel the Save mode and return back to the original set temperature that was used prior to starting Save mode LCD DISPLAY BACKLIGHT The display screen has a light that will assist viewing at nighttime or in low lighting areas When any front panel button is pressed the screen will light up for approximately 10 seconds Any button presses that occur while the backlight is on will reset the 10 second timer causing the screen to remain illuminated for an additional 10 seconds STATIC NOTICE This thermostat is protected against normal minor static electric discharges however to minimize the risk of damaging the unit in extremely dry weather please touch a grounded metal object before touching your thermostat ADVANCED FEATURES TEMPERATURE SWING The amount of temperature variation between load on and load off is changed by adjusting the swing setting The default value for this thermostat is 4 and the adjustment range is from 1 to 9 A smaller swing number makes the temperature control more precise and constant and increases the number of cycles per hour A larger swing number will produce a greater variation between load on and load off events and decreases the number of cycles per hour To adjust the Swing setting Set the thermostat to OFF mode using the Sys
6. ld ALL the way into the terminal block while the screw is being tightened 2 Securely tighten all of the electrical terminal screws including any unused ones Be careful not to over tighten the screws they only need to be snug Complete heating and or cooling system wiring can be found in the WIRE IDENTIFICATION AND WIRING SCHEMATICS section of this instruction sheet The schematics shown provide component information for brand new installations or for unreferenced wires SYSTEM CONFIGURATION AND SETUP OPTIONS On the circuit board there are hardware settings called jumpers These settings can be changed from their default values by removing its black cap and reinstalling the cap so that it is positioned on only one 1 of the metal pins and not both A CLOSED jumper means the black cap is on both of the metal pins and an OPEN jumper means the cap is on only one 1 metal pin CLOSE Furnace OPEN HARDWARE RESET BUTTON A change to ANY of the jumper settings will not be recognized by the thermostat until the white HARDWARE RESET button on the circuit board is pressed JP1 SYSTEM CLOSED Furnace default This setting is used for the majority of all heating systems that are not heat pumps Examples for this setting would be natural gas furnace hot water baseboard heat and oil heat OPEN Heat Pump Use this i setting if you have a heat pump unit which looks just like an outside air conditioning
7. mitation may not apply to you Please return malfunctioning or defective units to the location from which the purchase was made along with proof of purchase Please refer to TECHNICAL ASSISTANCE before returning thermostat Purchaser assumes all risks and liability for incidental and consequential damage resulting from installation and use of this unit Some states do not allow the exclusion of incidental or consequential damages so the above exclusion may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state Applicable in the U S A and Canada only MERCURY WARNING AND RECYCLING NOTICE Mercury is considered to be a hazardous material If this product is replacing a thermostat that contains mercury in a sealed tube contact your local waste management authority for instructions regarding recycling and proper disposal It may be unlawful in your state to place it in the trash 2012 LUX PRODUCTS CORPORATION ALL RIGHTS RESERVED
8. sy to Read Display e F C Selectable Temperature Display e Adjustable Temperature Differential Cycle Rate e User Temperature Display Calibration e 5 2 Minute Selectable Minimum Run Off Time e On Screen Low Battery Indicator e 3 Year Warranty e No Leveling Required TOOLS YOU MAY NEED Screwdrivers wire stripper cutter and possibly a drill with assorted bits new installations only REMOVAL OF OLD THERMOSTAT 1 Turn OFF the electricity to all heating and cooling components Do not turn the electricity back on until all work is completed 2 Remove the front portion of your old thermostat to expose the wiring connections 3 Write down the letters printed near each wire terminal that is used and also the color of each wire that is connected to it Self adhesive wire labels are also enclosed 4 Carefully remove the wires one at a time and bend them in a manner so that they do not fall back inside the wall Do not allow bare wire ends to touch each other 5 Loosen the mounting screws for the old thermostat and carefully remove it from the wall THERMOSTAT MOUNTING LOCATION On replacement installations mount the new thermostat in place of the old one unless the conditions listed below suggest otherwise On new installations please follow these general guidelines 1 Mount the thermostat on an inside wall about 5 ft 1 5m above the floor 2 Do not locate the thermostat where air circulation is poor su
9. tem Mode switch and hold down the SAVE button for at least 5 seconds When the screen changes to a single digit this is the current Swing setting value and it can be adjusted using the UP or DOWN buttons The thermostat will return back to the normal Run mode screen if no buttons are pressed for 4 seconds TEMPERATURE CALIBRATION This thermostat is accurately calibrated at the factory and in most cases alteration to this setting should not be required The Calibration feature allows you to manually offset the room temperature measurement by as much as plus or minus 5 F 3 C degrees from its original value 0 F 0 C is the default setting To adjust the Calibration setting Set the thermostat to OFF mode using the System Mode switch press both the UP and DOWN together for at least 2 seconds When the screen changes to a single digit this is the current Calibration setting value and it can be adjusted using the UP or DOWN buttons The thermostat will return back to the normal Run mode screen if no buttons are pressed for 4 seconds BATTERY REPLACEMENT This thermostat is powered by two AA Alkaline batteries The batteries should be replaced AT LEAST once per year or sooner if the LOW BAT battery symbol appears in the display screen When the LO BAT symbol is shown the temperature digits will also display the word Lo The batteries are located on the back of the circuit board and can be accessed by pulling the front por
10. tion of the thermostat straight outwards and removing it from the wall When installing new batteries we recommend using only brand new Energizer or DURACELL AA size alkaline batteries Please observe the polarity markings shown in the battery compartment to ensure proper installation When finished line up the front of the thermostat to the base and firmly press together TECHNICAL SUPPORT If you have any problems installing or using this thermostat please carefully and thoroughly review the instruction manual If you require assistance please contact our Technical Assistance department at 856 234 8803 during regular business hours between 8 00AM and 4 30PM Eastern Standard Time Monday through Friday You can also receive technical assistance online anytime day or night at http www luxproducts com Our web site offers you answers to the most common technical questions and also permits you to email your questions to our technical support staff at your convenience LIMITED WARRANTY If this unit fails because of defects in materials or workmanship within three years of the date of original purchase LUX will at its option repair or replace it This warranty does not cover damage by accident misuse or failure to follow installation instructions Implied warranties are limited in duration to three years from the date of original purchase Some states do not allow limitations on how long an implied warranty lasts so the above li
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