Sirac · China
Sirac Heat Pump Regassing in Johannesburg
Sirac heat pump regassing across Gauteng. 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.
Peak draw-off matters more than total daily volume: plant that satisfies a whole day of demand can still fail at a 45-minute shower peak. Sites with long, poorly insulated pipework lose more heat in distribution than most owners expect, which reads as a capacity problem at the outlet.
- Parts
- Controllers, contactors, sensors
- Turnaround
- Leak test and repair usually one visit; coil replacement quoted separately.
- Call
- 069 268 0988
What is included
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 |
| Sirac ranges | Commercial modular heat pumps |
When to call
Symptoms we see on this equipment
- Unit runs but water only reaches lukewarm
- Evaporator icing in mild weather
- Oil residue at pipe joints or coil bends
- Regassed within the last year and already weak
Coverage
Sirac Heat Pump Regassing by area
- Sirac Heat Pump Regassing Johannesburg
- Sirac Heat Pump Regassing Sandton
- Sirac Heat Pump Regassing Randburg
- Sirac Heat Pump Regassing Midrand
- Sirac Heat Pump Regassing Fourways
- Sirac Heat Pump Regassing Bedfordview
- Sirac Heat Pump Regassing Germiston
- Sirac Heat Pump Regassing Boksburg
- Sirac Heat Pump Regassing Benoni
- Sirac Heat Pump Regassing Kempton Park
- Sirac Heat Pump Regassing Edenvale
- Sirac Heat Pump Regassing Alberton
- Sirac Heat Pump Regassing Roodepoort
- Sirac Heat Pump Regassing Krugersdorp
- Sirac Heat Pump Regassing Centurion
- Sirac Heat Pump Regassing Pretoria
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.
Where do you service Sirac equipment?
Across Johannesburg, Ekurhuleni, West Rand, Midrand, Centurion and Pretoria. Call 069 268 0988 to confirm attendance for your address.
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 heat pump regassing
Serving Johannesburg, Ekurhuleni, West Rand, Midrand, Centurion and Pretoria.