HVAC Field Tools

ONE SEARCH. THE RIGHT TOOL.

Search equipment, faults, pressures, boilers, or walk-ins.

Enter a model, serial, fault code, refrigerant reading, or complaint. The site routes you to equipment lookup, boiler diagnostics, refrigeration diagnostics, calculators, or reports.

Equipment lookup

Decode supported model and serial information, then search official manufacturer literature.

Manufacturer Model number Serial number Complaint

Boiler tools

Hydronic, steam, condensing, and burner-control diagnostics.

Boiler type Fuel Supply temperature °F Return temperature °F Flow GPM Complaint

Boiler water-side BTU

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Expansion tank cold fill

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Steam pressure conversion

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Walk-in refrigeration

Cooler and freezer diagnostics covering defrost, pump-down, heaters, airflow, and refrigeration operation.

Box type Refrigerant Box temperature °F Evaporator air in °F Evaporator air out °F Complaint

Defrost heater amperage

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Evaporator air split

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Compressor electrical estimate

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Pump-down sequence

Thermostat closes the liquid-line solenoid, compressor pumps suction down, and the low-pressure control stops the compressor.

Fault code lookup

Starter database for common VFD, HVAC, boiler-control, and refrigeration-control faults.

Manufacturer Fault code

Pressure analyzer

Use pressures as one clue, not the entire diagnosis.

Refrigerant Suction PSI Head PSI

Field calculators

Fast calculations with assumptions shown.

Temperature split

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Total external static

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Three-phase power

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Transformer VA

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Guided diagnostics

Choose a complaint and work through checks in order.

Complaint

Field report

Create a clean service note from the job.

Customer / siteJob numberEquipmentComplaint

Measurements Diagnosis and work performed

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