Run Refrigerant Charge Verification by Subcool and Superheat — Free

Inspection Setup and System Identification

Equipment model, serial number, and location recorded

Refrigerant type verified against nameplate and service data critical (required)

Yes No N/A

Metering device identified as TXV/EEV or fixed orifice critical (required)

Yes No N/A

System has operated long enough to reach stable conditions before measurement critical (required)

Yes No N/A

Outdoor and indoor ambient conditions recorded

Manufacturer charging data or service chart available on site critical (required)

Yes No N/A

Operating Conditions and Measurement Readiness

Cooling mode confirmed for charge verification critical (required)

Yes No N/A

Indoor airflow and filters are in acceptable condition for measurement

Yes No N/A

Suction line, liquid line, and service ports accessible for measurement critical (required)

Yes No N/A

Temperature clamps and pressure gauges calibrated or verified critical (required)

Yes No N/A

Measurement instruments zeroed and attached without leaks critical (required)

Yes No N/A

TXV / EEV Systems - Subcooling Verification

System identified as TXV/EEV controlled critical (required)

Yes No N/A

Liquid line temperature measured

Note (optional)

Liquid line pressure measured

Note (optional)

Calculated subcooling recorded critical (required)

Note (optional)

Measured subcooling matches manufacturer target within acceptable tolerance critical (required)

Yes No N/A

Superheat not used as the primary charge verification method for this TXV/EEV system

Yes No N/A

Fixed Orifice Systems - Superheat Verification

System identified as fixed orifice / piston / cap tube controlled critical (required)

Yes No N/A

Suction line temperature measured

Note (optional)

Suction pressure measured

Note (optional)

Calculated superheat recorded critical (required)

Note (optional)

Measured superheat matches manufacturer target within acceptable tolerance critical (required)

Yes No N/A

Final Verification and Corrective Actions

Charge verification result accepted or rejected critical (required)

Deficiencies or non-conformances documented

Corrective action completed or assigned

Inspector signature captured critical (required)

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Run: Refrigerant Charge Verification by Subcool and Superheat

Inspection Setup and System Identification

Operating Conditions and Measurement Readiness

TXV / EEV Systems - Subcooling Verification

Fixed Orifice Systems - Superheat Verification

Final Verification and Corrective Actions

Get your results