3M 22 Operation Manual - 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 TIME Spec. Featr. cont. Temp HOLD To change and hold the temperature until you return. • Open the door and push the HOLD button. The HOLD icon comes on. Push the UP or DOWN arrow buttons to set the hold temperature. • HOLD is canceled if the MODE switch is moved, or press HOLD again. PG 9 Manual • With the MODE switch in HEAT or COOL, push the TEMP +/- buttons to temporarily change the control temperature by 1 degree per step. Press and hold for faster setting. • The OVERRIDE icon flashes to shows the displayed temperature may be different from the programmed setting. • The OVERRIDE is canceled at the start of the next time period, or when the MODE switch is moved, or if TEMP HOLD is pressed twice. PG 8 TEMP UP button TEMP DOWN button