Carel · Kathu
PLC & Controller Programming for Carel Systems in Macadamia Processing | Kathu Industrial
Controller configuration, defrost strategies and supervisory integration. We support Carel electronic controllers and humidity systems running R404A, R134a in macadamia processing across Kathu Industrial and Kathu Industrial.
Technical highlights
SAQCC Gas certified plc & controller programming
SANS 10147 pressure and gas compliance, genuine Carel OEM parts and rapid dispatch to Kathu Industrial.
- SAQCC Gas registered technicians handling R404A, R134a
- SANS 10147 pressure vessel and installation compliance
- Genuine Carel OEM parts — Carel EVD Evolution drivers, NTC/ratiometric probes and pGD terminals
- 1–2 days per plant to Kathu Industrial, Kathu
Common maintenance vectors
What we find on these systems
- Default parameter sets left in place
- Defrost timing mismatch
- Alarm bands set too wide
- EVD driver alarms from a mis-set superheat target
- Corroded probe terminations in high-humidity rooms
- Lost parameter sets after unprotected power dips
Dynamic specifications
Macadamia Processing duty on Carel plant
Dry-store climate control and kernel holding rooms
| Typical system duty | +8 °C to +15 °C (Full plant control range) |
|---|---|
| Design humidity | 55–65% RH |
| Recommended gas / pressure class | R404A, R134a — handled by SAQCC Gas registered technicians |
| Equipment platform | Carel Electronic controllers and humidity systems — pCO/pRack controllers, EVD Evolution driver, humiSteam humidification |
| Compliance frameworks | HACCP, FSSC 22000, SANS 10147, SAQCC Gas registration |
| OEM parts held | Carel EVD Evolution drivers, NTC/ratiometric probes and pGD terminals |
| Service deliverable | Parameter backup file and as-programmed schedule |
| Response / lead time | 1–2 days per plant |
| Location hub | Serving Kathu Industrial and surrounds off the N14 / R380 |
Local context
Working in Kathu Industrial
We service Kathu Industrial and the surrounding blocks of Kathu Industrial, Kathu, with access off the N14 and R380. Extreme summer ambients above 40 °C mean condensers, gas charge and high-pressure protection must be specified for worst-case, not average, days.
Dehumidification-dominant load with low sensible duty Moisture pickup drives rancidity and kernel downgrade
Compliance
Documentation you receive
- HACCP
- FSSC 22000
- SANS 10147
- SAQCC Gas registration
- Parameter backup file and as-programmed schedule
FAQ
Carel plc & controller programming in Kathu Industrial
How fast can a technician service Carel equipment at a macadamia processing site in Kathu Industrial?
Kathu Industrial sits on the N14 and R380, so our Kathu dispatch reaches most Kathu Industrial sites inside a standard callout window. Emergency plc & controller programming runs 24/7 because moisture pickup drives rancidity and kernel downgrade.
Do you stock OEM components for Carel systems?
Yes — Carel EVD Evolution drivers, NTC/ratiometric probes and pGD terminals. Carel (Italy) equipment on R404A/R134a 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 HACCP documentation your auditors expect.
What operating envelope do you commission this equipment to?
Macadamia Processing run at +8 °C to +15 °C at 55–65% RH, with plc & controller programming performed against Full plant control range. Moisture pickup drives rancidity and kernel downgrade
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Get started
Schedule an on-site diagnostic in Kathu 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.