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General| Brand | American Standard |
|---|---|
| Model | YHC120A |
| Category | Air Conditioner |
| Language | English |
Warnings and guidance for safely lifting heavy units.
Warning about clearances for combustible materials.
Details on power supply and wiring requirements.
Guidance for field-installed power wiring.
Safety warnings for electrical and rotating parts.
Requirements and calculation for three-phase voltage imbalance.
Procedure for checking and correcting three-phase motor phasing.
Precautions when working with live electrical components.
Checking airflow for direct drive fan units.
Checking airflow for belt drive fan units.
Verifying airflow for electro-mechanical units.
Checking airflow for 5-tap direct drive fans.
Verifying airflow using ReliaTel control.
Steps for starting compressors.
Procedures for adjusting and maintaining fan belts.
Procedures for cleaning evaporator and condenser coils.
Checking ReliaTel module for diagnostics and system status.
Checking system status via LED indicators or voltage readings.
Listing causes for various system failure indicators.
Methods to reset cooling and ignition lockouts.
Troubleshooting the unit's economizer control system.
Testing economizer actuator and sensors.
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