Board-level diagnostics for inverter heat pumps showing intermittent faults or poor COP. In Fourways Mall Precinct this is luxury gated estates work on inverter heat pump systems, attended within about 60 minutes of dispatch.We work across every major brand installed in Fourways Mall Precinct, and diagnostics start from the plated design data rather than a guess.Leaks are found before gas goes in: nitrogen pressure test, electronic sniffer and UV dye, then a triple evacuation and a weighed charge.Centre management contractor booking and night work windows. Heat Pump Services bookings in Fourways Mall 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
12.7 km
Municipal water hardness
hard (185 ppm)
Load-shedding schedule
Block 12
Access & compliance
Centre management contractor booking and night work windows.
Typical installed systems
Retail display refrigeration and packaged HVAC.

Refrigerant data

GasClassificationSuction pressureDischarge pressureTypical use
R410aHFC blend (A1)280-320 kPa at 7 degrees C evaporating2 600-3 000 kPa at 45 degrees C ambientMost inverter splits, ducted systems, VRV/VRF and heat pumps installed since 2005.
R32HFC (A2L, mildly flammable)300-340 kPa at 7 degrees C evaporating2 700-3 100 kPa at 45 degrees C ambientCurrent-generation inverter splits and heat pumps.

Common questions

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.

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.

How fast can you get to me?

Emergency callouts are dispatched to the next available technician, with the arrival window confirmed by SMS when the vehicle leaves.

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.