Heat Controller, Inc. INSTALLATION INSTRUCTIONS SMA/SMH 09/12
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5. Connecting Cables
A. Indoor/outdoor connections should be 18 AWG or heavier, SJOW cord. Check the rating plate for minimum
circuit to select wire size.
B. Open the panel, remove the electrical box cover by loosening the screw for (for <12000Btu/h models).
Remove the panel and screw covers, then loosen the screws and take down the frame (for ≥ 12000Btu/h
models).
C. Connect the wires to the terminals on the control board individually according to the outdoor unit connection.
D. Wrap the cables not connected with terminals with electrical tape so that they will not touch any electrical
components.
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