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Install AAA Batteries
• The 3M-22 requires 2 AAA batteries to operate .
• Switch MODE switch to OFF and the FAN switch to AUTO.
• Install 2 AAA alkaline batteries according to the polarity noted in
the compartment. LCD segments will go on.
• Press the RESET button (under top cover) to clear transient
program memory. NOTE: Replace the batteries when this LOW
battery indicator appears on the display or once a year.
• Replace top and bottom covers on unit.
Wall
Wires
3M-22
Wall anchor
• Hold the 3M-22 against the wall, with the wires coming
over the top above terminal block. The 3M-22 will cover the
hole in the wall.
• Position 3M-22 for best appearance. Use the optional stand-
offs if more space for wires is needed behind the 3M-22.
• Attach the base to the wall with the screws provided.
• If you are mounting the base to sheet rock or if you are using
the old mounting holes, use the plastic anchors provided. Drill
a 3/16-in.(4.8mm) hole for the insert at
each screw location, then mount the base.
Mount the 3M-22
AAA
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AAA
+
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W
W