Question 1

Need to know the adjustable swing..1, 2, 3 degrees ?

Accepted Answer

This was an important question to me because of where I was installing the thermostat.  The first thermostat installed was a Honeywell - that was when I found out Honeywell thermostats do not have the temp swing/differential feature - they are designed to keep a room at an even temp.  The problem with this is that it was causing my furnace to short-cycle a lot because the area was not well insulated!  After some research I discovered that because of the room not being well insulated, I needed to have a thermostat with a temp swing/differential feature.  In looking at this thermostat (DMH110) on-line I was seeing conflicting answers on this question.  One person here said it was up to a 1.25 degree swing whereas on another website they said it went up to a 2.25 degree swing.  I decided to contact Lux directly via email and they got back to me right away.  Here is a copy and paste of their answer to my question specifically related to the DMH110: "The Temperature Swing feature will be from Swing #1 - .25 ÃÂ F +/- to Swing #9 ? 2.25ÃÂ F +/-.  For Example swing set on #4 (1.00ÃÂ F +/-) and the room set point 70ÃÂ F; the turn on point will be 69.0ÃÂ F and turn off point will be 71.0ÃÂ F; 1 degree + or ? around the room set temperature.SWING SETTINGS:#1=        0.25ÃÂ° F +\- (from Set Temperature)#2=        0.50ÃÂ° F +\- (from Set Temperature)#3=        0.75ÃÂ° F +\- (from Set Temperature)#4=        1.00ÃÂ° F +\- (from Set Temperature)#5=        1.25ÃÂ° F +\- (from Set Temperature)#6=        1.50ÃÂ° F +\- (from Set Temperature)#7=        1.75ÃÂ° F +\- (from Set Temperature)#8=        2.00ÃÂ° F +\- (from Set Temperature)#9=        2.25ÃÂ° F +\- (from Set Temperature)

Question 2

How do you change from Celsius to  fahrenheit?

Accepted Answer

On the lower left side of the circuit board will be 3 jumpers, JP1, JP2, JP3.  Jumper JP3 should be across both pins on the circuit board then press the reset button on the left side of the circuit board for 3-5 seconds. Fahrenheit temperature will now be displayed. LUX Technical Support

Question 3

Can this unit be powered solely off the 24v AC "common" wire?  (leaving out the batteries entirely)

Accepted Answer

The bullet point description is incorrect. Battery powered ONLY

Question 4

Does this Lux thermostat display ambient room temperature only?  How can  I get the set temperature to display?

Accepted Answer

Sorry, you have to push the up or down arrow button to display the set temperature. On the other hand, after your system has operated for a while, the displayed ambient temp. is pretty much the set temp. because of the rather narrow temp. "swing" (even with the maximum "swing" of 1-1/4 degree F).

Product Dimensions	3.3 x 20.32 x 26.67 cm; 191 Grams
Item Weight	191 Grams
Batteries required	No
Included components	Thermostat

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LuxProducts DMH110 Non-Programmable Digital Thermostat

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