3M 3M-08 Install Manual - Install Batteries
When you have finished making connections.
Re-attach the the body onto the base by
pressing it firmly onto the base.
Install Batteries
Wiring complete
Check Unit
The 3M-08 requires 2AA batteries if the C-wire
is not available in your furnace installation.
Switch MODE switch to OFF and
the FAN switch to AUTO.
Remove the control unit form the wall unit.
Install 2 AA alkaline batteries according to the
polarity noted in the compartment.
(DO NOT USE Rechargable Batteries)
NOTE: Replace the batteries when the red LOW battery LED
indicator blinks or once a year.
Caution: The thermostat will go "off" if the batteries die. This exposes
your house to unexpected heat or cold and should be avoided.
Follow these procedures to verify you have correctly installed the unit.
To check Fan: (If you connected the G wire - fan relay)
Switch the FAN switch to the ON position.
Verify that air is blowing from the system.
Return to AUTO position for normal operation.
To check HEAT mode:
Set the mode switch to HEAT. Set the fan switch
AUTO.
Turn TEMP DIAL counter clockwise to its stop.
Allow the system 5 min to respond.
Verify that heat is blowing from the system.
To check COOL mode:
Turn TEMP DIAL clockwise to its stop.
Allow the system 5 min to respond.
Verify that cool air is blowing from the system.
PG
7
PG
8
AA
AA
Temperature
Dial
HEAT/COOL
Mode Switch
Fan
Switch