Danfoss · Secunda
PLC & Controller Programming for Danfoss Systems in Mining & Bulk Air Cooling | Secunda Industrial
Controller configuration, defrost strategies and supervisory integration. We support Danfoss expansion valves, controllers and pressure protection running R134a, R744, R717 in mining & bulk air cooling across Secunda Industrial and Secunda Industrial Complex.
Technical highlights
SAQCC Gas certified plc & controller programming
SANS 10147 pressure and gas compliance, genuine Danfoss OEM parts and rapid dispatch to Secunda Industrial.
- SAQCC Gas registered technicians handling R134a, R744, R717
- SANS 10147 pressure vessel and installation compliance
- Genuine Danfoss OEM parts — Danfoss ETS/TES valve bodies, AKS 32R transmitters and EKC 202 controllers
- 1–2 days per plant to Secunda Industrial, Secunda
Common maintenance vectors
What we find on these systems
- Default parameter sets left in place
- Defrost timing mismatch
- Alarm bands set too wide
- TXV hunting from a lost bulb charge
- Moisture-frozen orifices on systems with saturated driers
- Drifting AKS probes causing false superheat readings
Dynamic specifications
Mining & Bulk Air Cooling duty on Danfoss plant
Bulk air coolers, ice plants and surface chill dams
| Typical system duty | +2 °C to +12 °C chilled water (Full plant control range) |
|---|---|
| Design humidity | 90–100% RH |
| Recommended gas / pressure class | R134a, R744, R717 — handled by SAQCC Gas registered technicians |
| Equipment platform | Danfoss Expansion valves, controllers and pressure protection — TXV/ETS electronic expansion, AKS sensors, EKC controllers, KP pressure switches |
| Compliance frameworks | MHSA, SANS 10147, OHS Act, SAQCC Gas registration |
| OEM parts held | Danfoss ETS/TES valve bodies, AKS 32R transmitters and EKC 202 controllers |
| Service deliverable | Parameter backup file and as-programmed schedule |
| Response / lead time | 1–2 days per plant |
| Location hub | Serving Secunda Industrial Complex and surrounds off the N17 / R546 |
Local context
Working in Secunda Industrial
We service Secunda Industrial Complex and the surrounding blocks of Secunda Industrial, Secunda, with access off the N17 and R546. Lowveld heat and escarpment humidity combine into high wet-bulb loads through the citrus and subtropical pack season.
Bulk air coolers and ice plants for deep-level ventilation Underground heat stress limits shift productivity
Compliance
Documentation you receive
- MHSA
- SANS 10147
- OHS Act
- SAQCC Gas registration
- Parameter backup file and as-programmed schedule
FAQ
Danfoss plc & controller programming in Secunda Industrial
How fast can a technician service Danfoss equipment at a mining & bulk air cooling site in Secunda Industrial?
Secunda Industrial sits on the N17 and R546, so our Secunda dispatch reaches most Secunda Industrial Complex sites inside a standard callout window. Emergency plc & controller programming runs 24/7 because underground heat stress limits shift productivity.
Do you stock OEM components for Danfoss systems?
Yes — Danfoss ETS/TES valve bodies, AKS 32R transmitters and EKC 202 controllers. Danfoss (Denmark) equipment on R134a/R744/R717 charges is supported with the fast-moving spares held at our Pretoria North workshop and non-stock items brought in on OEM order.
What pressure testing and gas compliance certificates are provided?
Every plc & controller programming job closes with a pressure test record and gas handling Certificate of Conformance issued under SANS 10147 by a SAQCC Gas registered technician, plus the MHSA documentation your auditors expect.
What operating envelope do you commission this equipment to?
Mining & Bulk Air Cooling run at +2 °C to +12 °C chilled water at 90–100% RH, with plc & controller programming performed against Full plant control range. Underground heat stress limits shift productivity
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Get started
Schedule an on-site diagnostic in Secunda Industrial
Tell us what you need cooled and where. We respond with a scoped quote, and for emergencies we dispatch straight away.
- Phone / WhatsApp
- 069 268 0988
- info@reyds.co.za
- Workshop
- 386 Eeufees Street, Pretoria North, Gauteng
- Hours
- Mon–Fri 07:00–17:00, Sat 08:00–13:00. 24/7 emergency breakdown line.