Heat Controller SMA 18, Installation Instructions Manual, Page: 6 / 14

SMA/SMH 18/24
INSTALLATION INSTRUCTIONS
Heat Controller, Inc.
3. Indoor Unit Installation
secured to
lip at the back
Place the upper lip at the back
of the indoor unit onto the up -
per hook of the installation plate.
Move the indoor unit from side to
side to see that is is secured onto
the hook of the installation plate.
Push the lower part of the indoor
unit up to the wall. Then move
the indoor unit from side to side
and up and down to ensure it is
secured to the installation plate.
B.
D. Piping can easily be installed by
placing a piece of foam between
the unit and the wall to assist in
holding the unit away from the
wall during installation.
C.
A.
4. Electrical Work
E. All wiring to the unit and interconnecting between indoor and out -
door units must comply with local and national electrical codes.
F. Do not exceed the power code by splicing.
G. Voltage should be in range of 90%~110% of unit’s voltage.
H. The indoor unit is powered through the interconnecting cable. The
indoor unit requires no separate power source.
• Connect unit to a dedicated circuit.
• Refer to the unit’s rating plate from proper supply voltage.
A.
B.
C.
D.