Rivonia · Johannesburg
Sirac Heat Pump Regassing in Rivonia
Sirac heat pump regassing in Rivonia. Modular banks where lead/lag sequencing faults are frequently mistaken for capacity shortfall.
Sirac equipment we work on includes commercial modular heat pumps. Commonly replaced parts on this brand are controllers, contactors, sensors, and we keep or source these against the unit's model and serial plate rather than by guesswork.
A heat pump is a sealed system: if it is short of gas, there is a leak. Simply topping up sends the same refrigerant back into the atmosphere within months and masks the fault. We pressure-test, trace the leak, repair it, evacuate to vacuum and then charge by weight to the manufacturer's plate data.
Office parks, medical facilities and lodges with commercial heat pumps and calorifiers. Planned maintenance contracts suit the office-park plant in this area. Gauteng municipal water is moderately hard, so scale on elements and heat exchangers is the single most common cause of falling performance.
- Area
- Rivonia, Johannesburg
- Parts
- Controllers, contactors, sensors
- Call
- 069 268 0988
Sirac · Rivonia
Scope of work
- Nitrogen pressure test and vacuum hold test
- Electronic and UV dye leak tracing
- Braze repairs to pipework, joints and coils
- Charge by weight with digital scales
- Superheat and subcooling verification after charging
- Filter drier replacement
Technical detail
Specifications
| Refrigerants | R410A, R32, R134a, R417A, R407C |
|---|---|
| Method | Recover, evacuate to 500 microns, charge by weight |
| Verification | Superheat/subcooling within manufacturer band |
| Warranty | Leak repair warranted; unrelated leaks quoted separately |
| Local context | Office parks, medical facilities and lodges with commercial heat pumps and calorifiers. |
Coverage
Nearby areas
Related
Other Sirac services in Rivonia
FAQs
Frequently asked questions
Are you an authorised Sirac agent?
We are an independent specialist. We repair and maintain Sirac equipment using correct-specification parts, and where a unit is still under manufacturer warranty we will tell you before doing anything that could affect it.
Can you get Sirac parts?
Controllers, contactors, sensors for Sirac are ordered against the model and serial plate. Where an original part has a long lead time we will offer a compatible equivalent and say clearly which one is being fitted.
What does Sirac heat pump regassing include?
Nitrogen pressure test and vacuum hold test, Electronic and UV dye leak tracing, Braze repairs to pipework, joints and coils, plus verification that the unit performs to the manufacturer's stated figures after the repair.
Do you service Sirac units in Rivonia?
Yes. Rivonia is inside our service area. Technicians work out of the central Johannesburg base, which keeps travel time short for northern-suburb call-outs.
Is it worth repairing an older Sirac unit?
If the compressor and heat exchanger are sound, repair is almost always cheaper than replacement. Modular banks where lead/lag sequencing faults are frequently mistaken for capacity shortfall.
Sirac service in Rivonia
Planned maintenance contracts suit the office-park plant in this area.