I have no manual for my Noma programmable thermostat. The only numbers I could pull off the unit are as follows:

THM301MA3

And in a different location

HFD2/003-S-L2-D

I'm hoping that one of these is a model number.

Your thermostat is located here


UPM Marketing Inc. -Programmable Thermostats (http://www.upm-marketing.com/products/productlist.cfm?CFID=7984165&CFTOKEN=92819866&pt=!(%20OL%0A)



You will have to down load the wiring operator manual.