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Warning about high voltage risks and safe disconnection procedures.
Warning for qualified personnel only, emphasizing electrical shock prevention.
Importance of proper grounding for equipment and personal safety.
Warning regarding R-410A refrigerant and required service equipment.
Warning about operating unit without access panels installed, risking severe injury.
Warning about potential exposure to chemicals like lead.
Guide to reading the manual, installation by qualified technicians, and unit design.
Instructions for checking unit for damage after unloading and reporting issues.
Procedure for charging the unit in cooling mode at low outdoor temperatures.
Guidelines for unit placement, service clearance, and ductwork for horizontal airflow.
Guidelines for unit placement, service clearance, and ductwork for down airflow.
Instructions for installing the unit on a ground-level pad for proper drainage and support.
Steps for converting airflow and installing a roof mounting curb for rooftop units.
Safety procedures and methods for lifting and rigging the unit for installation.
Procedure for rooftop installations using field-fabricated frames and ducts.
Connecting downflow ductwork to the roof curb for easy installation.
Guidelines for constructing and attaching downflow ductwork to roof frames.
Instructions for insulating and weatherproofing horizontal ductwork for optimal performance.
Guidelines for making electrical connections according to local codes and standards.
Ensuring adequate and correct electrical power supply for the unit operation.
Requirements for installing an approved weatherproof disconnect switch near the unit.
Proper routing and connection of power supply lines to the unit's control box.
A checklist to ensure all installation steps are completed before unit startup.
Procedure for starting the unit in cooling mode and setting the thermostat.
Steps to check operating pressures against service facts for proper system performance.
Procedure to verify the unit's line voltage is within the specified range.
Instructions on how to properly shut down the unit in cooling mode.
Procedure for starting the unit in heating mode and setting the thermostat.
Overview of automatic heating and cooling cycles, and fan operation modes.
Detailed explanation of the two-stage cooling operation sequence.
Detailed explanation of the two-stage heating operation sequence.
Explanation of how supplementary electric heat engages and its control logic.
Periodic maintenance tasks for the unit owner, including filter replacement and coil cleaning.
Instructions on inspecting, cleaning, or replacing air filters for optimal performance.
Guidance on keeping the condenser coil area clear of obstructions for efficient operation.
Recommended annual service checks for the unit during the cooling season.
Recommended annual service checks for the unit at the start of the heating season.
Information on adjusting indoor fan motor speed settings for optimal airflow.
Explanation of fault indicators and PIN identification for troubleshooting unit issues.
General
