HVAC/R Resources.
Categorized diagnostic flowcharts, interactive calculators, technical specs, and standard operating procedures for industrial & domestic cooling systems.
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All Services
Comprehensive list of all our HVAC, refrigeration, and mechanical services.
Service details for Pcb Voltas Smps Switch Mode Power Supply 15v Rail Repair 1
Service details for Pcb Blue Star Optocoupler Communication Loop Refurbishment 2
Service details for Pcb Lg Microcontroller Eeprom Data Flashing Tuning 3
Service details for Pcb Hitachi Current Sensing Shunt Resistor Calibration 4
Service details for Pcb Carrier Bldc Condenser Fan Motor Driver Ic Repair 5
Service details for Pcb Panasonic Dc Bus High Voltage Capacitor Refurbishment 6
Service details for Pcb Godrej Inverter Drive Phase Voltage Unbalance Fix 7
Service details for Pcb O General Pcb Heatsink Compound Repasting Descaling 8
Locations & Hubs
Find localized HVAC services in your city or industrial area.
Brands Supported
OEM-specific resources, manuals, and service details.
Brand Comparisons
Head-to-head comparisons of major HVAC/R brands.
Compare specifications and costs
Compare specifications and costs
Compare specifications and costs
Compare specifications and costs
Compare specifications and costs
Compare specifications and costs
Compare specifications and costs
Compare specifications and costs
Refrigerants Data
Pressure and specifications for common refrigerants.
Industrial Solutions
Heavy mechanical and plant operations.
Calculators
Interactive sizing and unit converters for refrigeration loop diagnostics.
Room dimensions to BTU cooling load.
Estimate AC tonnage from sq ft.
Pressure to saturation temp lookup.
TXV and fixed-orifice diagnostic calculations.
Condenser liquid subcooling checks.
CFM volume from tonnage and delta T.
Equal friction method duct diameter.
Liquid and suction copper line sizing.
Troubleshooting Guides
Step-by-step diagnostic articles to debug complex AC and chiller faults.
15 common causes for no cooling.
Low side pressure drops diagnostics.
Condenser heat dissipation faults.
Why compressors turn off rapidly.
Preventing liquid washback and ice blocks.
Troubleshooting warm commercial coolers.
Spotting bubbles and oil spots on piping.
How to place sensors and gauge lines.
Formulas & References
Core mechanical engineering calculations and formula cheat sheets.
Interactive Tools
Diagnostics wizards, technician quizzes, and payback selectors.
10-question technical competency quiz.
Interactive symptom diagnostic flow tree.
GWP and safety class refrigerant match.
AC installation material and labor cost estimate.
Custom preventative maintenance checklists.
Inverter energy upgrade payback periods.
Latest Blogs & Insights
Industry news, SEO articles, and expert HVAC advice.
Dedicated Platform Portals
Access your customer account log or submit technician dispatch forms.
Downloadable Technical Resources & checklists
Free engineering specs and field servicing templates for technicians.
Fast Field Tools
Diagnostic Superheat & Subcooling
Technicians can calculate superheat or subcooling on location. Simply enter suction/liquid pressure and temperature measurements to get diagnostic assessments.
Energy & Savings
Calculate Savings ROI
Compare modern 5-star inverter split systems or high-COP chillers with older systems. Calculate electrical payback periods instantly.
Try ROI Calculator →