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Inspect unit for damage and verify rating plate matches job specifications before installation.
Install unit on a solid, level mounting pad, ensuring proper airflow clearance and stability.
Check and replace the indoor coil piston if it does not match the required specifications.
Connect outdoor to indoor sections using appropriate tubing, ensuring proper evacuation.
Ensure field wiring complies with codes, check voltage limits, and connect per diagrams.
Install an adequate branch circuit disconnect within sight and accessible from the unit.
Route wires through the access panel and connect ground and power wires to the control box.
Route 24-v control wires and connect them to the unit's splice box according to diagrams.
Understand crankcase heater requirements for tubing length and proper operation.
Install any electrical kits or accessories following their specific instructions.
Energize heater, back seat valves, seal caps, energize system, and set thermostat for operation.
Perform procedures to check and adjust refrigerant charge using pressure and temperature readings.
Measure pressures/temperatures, compare to tables to add or bleed refrigerant for optimal performance.
Perform regular maintenance to ensure high performance and minimize potential equipment failures.
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