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6 18-HD64D1-1
Mounting Sub-Base to Wall
Be sure wires are routed through the center of the
base plate and are long enough to connect to ter-
minals.
Select and mark three holes.
NOTE: The three hole locations indicated at right
are recommended. The top location is an optional
mounting screw location.
A level may be used to ensure professional appear-
ance.
Attach base to wall using 3 screws provided. The
locations indicated provide the most secure mount-
ing and are recommended.
NOTE: Since moderate force is required when re-
moving the thermostat from the sub-base, the sub-
base must be securely attached to the wall.
Do not overtighten screws to avoid damaging the
sub-base.
1) Press tip of SnapSkru
®
an-
chor into drywall using #2 Phillips
screwdriver or screw gun. Drive
anchor clockwise into drywall until
anchor stops flush with wall.
2) Place sub-base over anchor
and insert screw.
3) Tighten screw flush with sub-
base. Screw “pops” open anchor,
locking anchor on wall.
Do not overtighten screws to avoid
damaging the sub-base.
If mounting to drywall, supplied SnapSkru
®
connectors must be used to mount the thermostat sub-base to
the wall. These connectors will ensure that the control is adequately supported.
NOTE: Since moderate force is required when removing the thermostat from the sub-base, a firmly mount-
ed sub-base is essential.
3
Mounting to Studs
Mounting to Drywall
4A
4B
Optional Hole
Three (3)
Recommended
Screw
Locations