HVAC Engineering & Thermodynamic Calculators
Comprehensive suite of heat load, refrigerant PT charts, superheat, subcooling, duct CFM, and chiller efficiency tools. Fully managed from the WordPress admin panel.
HVAC/R Engineering & Technician Certification Quiz
Test your knowledge in refrigeration cycles, psychrometrics, superheat calibration, and error code troubleshooting.
Hydronic Closed Expansion Tank Sizing
Calculate required diaphragm expansion tank volume for closed chilled and hot water hydronic loops to prevent relief discharge.
Industrial Chiller IKW/TR & COP Audit
Audit industrial process water chiller specific power consumption (IKW/TR) and COP. Detect tube fouling and energy waste.
Intelligent Refrigerant Selector Tool
Find the best refrigerant gas based on cooling application, operating temperature, safety class, and Montreal Protocol guidelines.
Inverter AC Efficiency ROI & Payback Calculator
Analyze electricity savings and payback period when upgrading to high-efficiency inverter air conditioning in Pune.
Line Set Refrigerant Charge Addition
Calculate exact grams and ounces of refrigerant to weigh in for split AC and VRF systems with extended pipe runs…
Liquid Line Subcooling Charge Check
Calculate subcooling to verify TXV refrigerant charge. Prevent vapor bubbles from entering the expansion valve.
Monthly Electricity Bill & Inverter Savings
Estimate monthly AC power consumption and power bill in Rupees. Calculate payback and savings of 5-star inverter ACs in Maharashtra.
Pressure Unit Converter
Free online pressure unit converter. Convert gauge and absolute pressure across PSI, Bar, kPa, kg/cm², and MPa.
Preventive Maintenance Audit Checklist
Standard operating procedure checklist for commercial AC and industrial chiller maintenance in Pune & MIDC.
Psychrometric Wet Bulb & Dew Point
Calculate wet bulb temperature, dew point, and air enthalpy from dry bulb and relative humidity. Prevent indoor condensation.
Refrigerant Line Pipe Sizing
Size refrigerant copper tubing for R-410A, R-32, R-134a, and R-22 systems. Recommended suction and liquid line outer diameters.
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