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Compressed air
Report BuilderZero-to-Hero Proposal BuilderControl Strategy AdvisorDowntime CostEquipment Health ScorecardHeader Pressure OptimizerLeak Load EstimatorReceiver Sizing CheckCompliance ChecklistDispatch On-Time KPIMulti-Site KPI RollupOvertime ReductionPM Schedule BuilderParts Reorder CheckSLA Response TrackerService Contract HealthTechnician ScorecardWeek Route & Dispatch PlannerAir Quality SelectorBHP ↔ SCFM ConverterCAGI Model FinderMoisture Load / Dryer SizingOil Carryover / ISO ClassPM Interval ReferencePipe SizingQuote BuilderSpecific Power RaterSystem Audit ScorecardSystem Sizing (SCFM)Energy & Leak AuditCompressor TroubleshooterAir Dryer DiagnosticCompressor Fault CodesPipe / Header SizingPM Interval PlannerMaintenance TrackerCAGI Data FinderControl Strategy / Receiver SizingOvertime / Labor CostService SchedulerAirSpec CompareVSD ROI CalculatorAir Quality / ISO 8573-1 SelectorSystem SizingAudit Scorecard
EPA 608 / HVAC-R
Controls & automation
Air Quality Class PickerAnalog ScalerArc-Flash PPE and Boundary PickerCompressor Control Mode SelectorCompressor Trip DiagnoserConduit Fill CheckerElectrical for CompressorsInterlock Trip CheckerLoop Power and Burden CheckerMotor Nameplate DecoderPeck Drill Cycle HelperPower Factor and Capacitor kVAR HelperRTD and Thermocouple ReaderShock Approach Boundary LookupSiemens to Allen-Bradley TranslatorSpeed, Feed and G/M-Code DecoderTapping Feed (G84)Transmitter Range ScalerVFD to Motor Cable-Length CheckerVoltage Drop and Wire-Run CheckerWork Offset and Tool Comp DecoderAddressing DecoderBoolean Ladder TrainerData Type SizerIP / NEMA Enclosure LookupISA Tag DecoderNumber Base ConverterScan Cycle ExplainerTimer Preset HelperPhase Sequence IdentifierPower Factor Correction SizerThree-Phase Power and CurrentTwo-Wattmeter Power ReaderVoltage Imbalance CheckerWye vs Delta ConverterControls Field ToolsPLC 101 ToolkitControls Skills CheckThree-Phase Power ToolsBAS Controls Fault Codes
Pump & pipe
Blower SizingMotor Wire SizerPump-Down TimeAffinity LawsCavitation DiagnosticCompressed-Air PipeFitting LossesLiquid Pressure DropMinimum Continuous FlowNPSH MarginPipe Support SpanPipe Velocity & SizePump Check ReportPump PowerPump Selection SummarySpecific SpeedThermal GrowthVFD Savings (Static-Corrected)Wall Thickness (B31.3)Water HammerEquipment ElevationInstrument Straight RunPipe Rack SizerPlatform & Ladder AccessPlot-Plan SpacingValve AccessPump & Pipe Field ToolsPump & Pipe Layout ToolsPump Equipment & Electrical
Recruiting & hiring
Superheat / Subcool Calc
Live calcMeasure superheat and subcool from suction/liquid pressure and line temp with in-range verdicts.
Open tool →PT Chart Lookup
PT chartPick a refrigerant and temperature, get instant bubble and dew point pressures from NIST-traceable data.
Open tool →Refrigerant Retrofit Wizard
RetrofitPick a from/to refrigerant pair and get oil change, TXV, and drop-in guidance.
Open tool →Refrigerant Price Tracker
Live pricingCurrent bulk pricing per refrigerant with a built-in lbs-to-cost estimator.
Open tool →Every result is cited
Calculators reference NIST refrigerant thermodynamic data, ASHRAE 34, and manufacturer service literature. Compressed-air, three-phase power, and pump/pipe calculators live inside their trade families.