Pressure testing, leak detection, vacuum and accurate weighed re-gas of R410a, R32 and legacy R22 systems. In Sandton CBD this is sandton prime work on all split types systems, attended within about 35 minutes of dispatch.On Alliance equipment specifically — locally supported inverter splits, ducted units and heat pumps — the faults we see most in Sandton CBD are heat pump flow switch faults and sensor drift causing short-cycling.Every visit starts with a full diagnostic and a written quote before any part is fitted.Building management induction and permit-to-work required for plant rooms. Aircon Repairs & Servicing bookings in Sandton CBD are logged against Block 4 so we can allow for power availability on site.
- Typical response window
- 35 minutes from Sandton
- Distance from Sandton CBD
- 0.4 km
- Municipal water hardness
- moderate (140 ppm)
- Load-shedding schedule
- Block 4
- Access & compliance
- Building management induction and permit-to-work required for plant rooms.
- Typical installed systems
- Towers on central HVAC and chillers, plus retail and restaurant refrigeration.
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
Do you stock Alliance parts in Sandton CBD?
Yes. Alliance is locally supported, so boards, sensors, capacitors and fan motors are available quickly, which keeps repair times short.
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.
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.