Carel · Bloemfontein

PLC & Controller Programming for Carel Systems in Macadamia Processing | Hamilton

Controller configuration, defrost strategies and supervisory integration. We support Carel electronic controllers and humidity systems running R404A, R134a in macadamia processing across Hamilton and Hamilton Industrial.

Request a site assessment 069 268 0988 WhatsApp

Technical highlights

SAQCC Gas certified plc & controller programming

SANS 10147 pressure and gas compliance, genuine Carel OEM parts and rapid dispatch to Hamilton.

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 Hamilton, Bloemfontein

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 Hamilton Industrial and surrounds off the N1 / N8

Local context

Working in Hamilton

We service Hamilton Industrial and the surrounding blocks of Hamilton, Bloemfontein, with access off the N1 and N8. Dry heat by day and sharp frost by night stress door heaters, oil viscosity and defrost timing in equal measure.

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 Hamilton

How fast can a technician service Carel equipment at a macadamia processing site in Hamilton?

Hamilton sits on the N1 and N8, so our Bloemfontein dispatch reaches most Hamilton 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

Related services & locations

Get started

Schedule an on-site diagnostic in Hamilton

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
Email: 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.