3M 22 Operation Manual

Summary of 22

  • Page 1

    Statement of use: the 3m-22 can be used with - millivolt, 24vac single and 2-stage dstconventional systems, gas/oil/electric heat, 1-stage heat pumps, 2 -stage heat pumps, zoned hot water (2 or 3 wire), zoned forced air, single and 2-stage cooling, and hybrid systems. It can not be used with 120 vol...

  • Page 2

    Set clock energy saving program fold line set day of the week - • press set clock once to set the day of the week. The day of the week display flashes. (initially su for sunday) • press to select the day. Set time of day - • press set clock again to set the time . The time display will flash. • pres...

  • Page 3

    Program • select heat with the heat/cool mode switch. • to select the day you want to program : press program to enter programming mode. The program icon will come on. The day icon will show su (sunday). Press day again to advance the day selection. • select the time slot you want to program: to cha...

  • Page 4

    Prog 2 : an alternative program can be used for holidays, shift work, etc. Access by pushing the prog 2 button. Prog 2 will then be active until you shut it off by touching the prog 2 button again. The main program will then again be active. To change prog 2 press day until prog 2 is displayed and r...

  • Page 5

    Lock allows you to lock the 3m-22 (to prevent any changes in custom settings) • to enable or disable the program lock, press the following buttons one at a time,in this sequence. Filter , then set clock , and last home . The lock icon (a key) appears when the system is locked. • repeat to unklock ti...

  • Page 6

    Low battery • when the batteries are low, the battery icon will come on and flash. The two aaa batteries in the unit need to be replaced. In some installations your heater system will stop functioning when the thermosat loses power. Replace batteries as soon as you see this warning. The thermostat p...

  • Page 7

    Note: your thermostat comes from the factory calibrated to + or - 1 o f actual temperature. It is an accurate instrument. If you want your thermostat to display the same temperature as another thermometer in your home, you can adjust its calibration. To change the calibration: mode switch of the uni...

  • Page 8

    Pg 14 pg 15 heat pump aux only 1002-006 covers removed aaa aaa customer support: 888-607-5824 or visit our website www.Radiothermostat.Com/filtrete printed in china heat target temp program hold copy review filter time slot time set set clock epa prog2 1 2 3 4 6 8 5 7 this thermostat can be used wit...