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General| Cooling Capacity | 24, 000 BTU/h |
|---|---|
| EER | 12.0 |
| HSPF | 8.5 |
| Refrigerant Type | R-410A |
| Voltage | 208/230V |
| Phase | 1 |
| Compressor Type | Scroll |
| Sound Level (Outdoor Unit) | 72 dB |
| Heating Capacity | 24000 BTU/h |
Inspect the unit for damage during shipment and verify it is correct for the intended application.
Ensure adequate power supply for the unit and any supplementary heaters, matching unit nameplate requirements.
Check handling facilities and use proper methods with straps/spreader bars for safe lifting of the unit.
Considerations for unit placement, including clearances, snow drift, water runoff, and noise for optimal installation.
Guidelines for rooftop installations, including structural support, clearances, and ductwork insulation.
Instructions for connecting and pitching the condensate drain line, requiring a trap and 3/4" pipe.
Procedures for outdoor ground-level installations, focusing on pad placement, isolation, and ductwork.
Ensure electrical wiring and grounding comply with local codes and the National Electrical Code.
Provide an approved weather-proof disconnect switch visible from the unit for servicing.
The branch circuit feeding the unit must be protected as indicated on the unit's rating plate.
Run power supply lines in weathertight conduit, ensuring tight connections and strain relief.
The unit must be electrically grounded in accordance with local codes or the National Electrical Code.
All electrical accessories must be installed and wired according to their specific instructions.
Route low-voltage control wiring separately from power wiring, ensuring proper connections.
Units require filters in the return air duct; refer to filter data table for size and specifications.
Perform a thorough pre-start check of unit placement, ductwork, wiring, and clearances.
Initiate cooling by setting the thermostat to COOL, ensuring proper crankcase heat operation.
Check discharge and suction line pressures against normal operating pressures for proper function.
Verify line voltage is within the range shown on the unit nameplate; check supply line size if low.
Shut down cooling by setting the system selector to OFF or thermostat above room temperature.
Initiate heating by setting the thermostat to HEAT, ensuring all access doors are closed.
Shut down heating by setting the system selector to OFF or heating selector below room temperature.
Describes automatic operation for HEAT and COOL cycles and fan switch modes (ON/AUTO).
Details the cooling cycle initiation, including compressor crankcase heat and thermostat control.
Explains the heating cycle, compressor operation, and thermostat control for heating.
Describes how supplementary electric heat engages when indoor temperature drops below thermostat setting.
Explains how the demand defrost control activates cooling to clear outdoor coil frost.
Information on adjusting blower speed using dip switches on the ICM Fan Control.
Periodic tasks for owners, including filter replacement, cabinet cleaning, and coil inspection.
Instructions for cleaning or replacing central duct system air filters monthly for optimal performance.
Guidance on cleaning the outdoor coil by brushing vertically and keeping vegetation clear.
Recommended annual checks by a qualified serviceman for filters, motors, safety controls, and components.
Measures outdoor ambient and coil temperatures to determine defrost needs based on delta-T.
Identifies fault conditions via the defrost control's flashing light indicator.
Details the function of various pins on the defrost control board for testing.
Procedures for checking the defrost control's operation and diagnosing potential issues.
Instructions for measuring sensor resistance at different temperatures to verify functionality.
Interprets LED flash rates to diagnose normal operation or specific fault conditions.
Troubleshooting steps when the defrost control LED is off.
Diagnosing issues when the LED flashes rapidly or continuously.
Checks for conditions preventing normal defrost initiation, including sensor readings.
Troubleshooting steps when forced defrost does not initiate.
Diagnosing manual defrost termination in less than 10 seconds.
Troubleshooting manual defrost termination based on timed intervals.
Checks for defrost initiation at specific intervals, related to sensor accuracy and fan operation.
Diagnosing defrost initiation at longer intervals, checking sensors and system charge.
Troubleshooting when the outdoor fan motor runs during the defrost cycle.
Checks for the correct delay of the switchover valve upon defrost termination.
Diagnosing issues related to a burned-out ODS-A sensor.
Troubleshooting compressor non-operation on SCROLL bearing units.
Diagnosing the absence of a 30-second off delay at defrost initiation on SCROLL units.
Details the limited warranty for Packaged Air Conditioners and Heat Pumps for residential use.
Details the limited warranty for High Efficiency Heat Pumps for commercial use.
Guidance on calling a dealer, including pre-call checks for unit operability.
