Quebec refrigeration field tool: P-T, diagnostics, electrical circuits and invoicing in one app
Why Quebec refrigeration techs need a complete digital field toolbox: P-T charts, diagnostics, Mollier cycle, electrical circuit solver, PDF reports and GST/QST invoicing.
A refrigeration tech does not open an app only to create an invoice. They open it in the field, in front of a walk-in cooler, a heat pump, a noisy condensing unit or a control circuit that will not respond.
That is why a real HVAC-R trade app must be more than an administrative tool. It must help during the service call: take measurements, convert pressure to temperature, validate superheat, understand an electrical circuit, produce a clear report and close the job with a quote or GST/QST invoice built for Quebec.
The field need: make decisions quickly with the right data
On a service call, the technician rarely has perfect information. They may have a low-side pressure, a high-side pressure, a line temperature, an unusual noise, a client waiting for an answer and sometimes weak mobile signal.
A useful digital toolbox should keep the most consulted references together:
- P-T charts to convert pressure and temperature by refrigerant.
- Superheat and subcooling calculators to validate charge and operation.
- Symptom-based diagnostic assistant to structure likely causes.
- H1 to H5 Mollier cycle to visualize system behavior.
- Electrical circuit solver for series, parallel and mixed circuits with voltage, current and resistance.
The new strong piece: the electrical circuit solver
In refrigeration, many failures pass through electricity: contactor, relay, fuse, capacitor, fan motor, low-voltage control, voltage drop or abnormal current.
FrigoTechPro's electrical circuit calculator works with series, parallel and mixed circuits. The user enters the values they know: resistance, voltage or current. The app deduces the rest with Ohm's law and circuit rules.
Example: a circuit with R1 in series, R2 and R3 in parallel, then R4 in series. Instead of redoing the full calculation manually, the app shows equivalent resistance, total current, voltage per resistance and branch currents. It is the kind of tool a DEP student, solo technician or HVAC-R company can reuse in the field.
But administration must follow the field
The best diagnostic has limited value if the client report is incomplete, photos stay on the phone, the quote is rebuilt later or the GST/QST invoice takes too long to send.
The right workflow is simple:
- The technician measures and diagnoses.
- Field results are documented in the client file.
- The PDF report is ready to send.
- The quote or invoice uses the right information.
- The client receives a clear, professional and consistent document.
This is where FrigoTechPro is different: technical tools and administration are not separated. P-T charts, diagnostics, electrical circuits, reports, quotes and GST/QST invoicing live in the same environment.
Why it matters in Quebec
Quebec has its own realities: Quebec French, GST/QST, refrigerant logs, Law 25, DEP Refrigeration and field tools used by local refrigeration techs.
A generic tool can manage an invoice. A trade tool must understand that refrigeration technicians work with refrigerants, pressures, temperatures, electricity, job photos, customer equipment, reports and local obligations.
The result: fewer back-and-forths, more perceived value
When a client sees a clear report with measurements, diagnostic notes, photos, quote and invoice, the work feels more professional. For the technician, it reduces wasted time between the jobsite and the office.
FrigoTechPro is not only about paperwork. It gives Quebec refrigeration techs a complete digital workstation: field tools, trade references and administration in one app.