Pressure testing, leak detection, vacuum and accurate weighed re-gas of R410a, R32 and legacy R22 systems. In Montecasino Precinct this is luxury gated estates work on all split types systems, attended within about 60 minutes of dispatch.On Dunham-Bush equipment specifically — industrial chillers, fan coils and commercial hvac plant — the faults we see most in Montecasino Precinct are chiller evaporator fouling and oil return problems on long pipe runs.Every visit starts with a full diagnostic and a written quote before any part is fitted.Precinct permits and after-hours-only work in public areas. Aircon Repairs & Servicing bookings in Montecasino Precinct are logged against Block 12 so we can allow for power availability on site.
- Typical response window
- 60 minutes from Fourways & Northern Suburbs
- Distance from Sandton CBD
- 12.9 km
- Municipal water hardness
- hard (185 ppm)
- Load-shedding schedule
- Block 12
- Access & compliance
- Precinct permits and after-hours-only work in public areas.
- Typical installed systems
- High-volume restaurant refrigeration, coldrooms and central HVAC.
Refrigerant data
| Gas | Classification | Suction pressure | Discharge pressure | Typical use |
|---|---|---|---|---|
| R410a | HFC blend (A1) | 280-320 kPa at 7 degrees C evaporating | 2 600-3 000 kPa at 45 degrees C ambient | Most inverter splits, ducted systems, VRV/VRF and heat pumps installed since 2005. |
| R32 | HFC (A2L, mildly flammable) | 300-340 kPa at 7 degrees C evaporating | 2 700-3 100 kPa at 45 degrees C ambient | Current-generation inverter splits and heat pumps. |
| R22 | HCFC (phased out) | 480-520 kPa at 7 degrees C evaporating | 1 700-2 000 kPa at 45 degrees C ambient | Legacy splits and ducted plant installed before the phase-out. |
Common questions
How often should an aircon need re-gassing?
A correctly installed system should never need gas. If it does, there is a leak, so we pressure test and repair the leak before charging rather than topping up annually.
Can you work after trading hours?
Yes. Retail, restaurant and office work is routinely scheduled at night or early morning under a permit-to-work so trading is not interrupted.
Do you top up gas without finding the leak?
No. A weighed charge into a leaking system is money out the window, so the leak is found and repaired first, then the system is evacuated and charged to the plated weight.
What does an annual service contract include?
Scheduled visits, priority response between visits, a written condition report per unit and fixed labour rates for the contract year.
Request a callout or quote
Send it straight to our WhatsApp for the fastest response, or call 069 268 0988 / email info@reyds.co.za.