Danfoss · La Mercy
Humidity Control Systems for Danfoss Systems in Potato & Onion Storage | Dube TradePort
Dehumidification and humidification to hold product-specific RH bands. We support Danfoss expansion valves, controllers and pressure protection running R404A, R717 in potato & onion storage across Dube TradePort and Dube TradePort SEZ.
Technical highlights
SAQCC Gas certified humidity control systems
SANS 10147 pressure and gas compliance, genuine Danfoss OEM parts and rapid dispatch to Dube TradePort.
- SAQCC Gas registered technicians handling R404A, 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 weeks to Dube TradePort, La Mercy
Common maintenance vectors
What we find on these systems
- Coil design driving over-dehumidification
- Condensation on cold surfaces
- Steam humidifier scaling
- TXV hunting from a lost bulb charge
- Moisture-frozen orifices on systems with saturated driers
- Drifting AKS probes causing false superheat readings
Dynamic specifications
Potato & Onion Storage duty on Danfoss plant
Bulk stores with plenum ventilation and humidity control
| Typical system duty | +4 °C to +10 °C (45–95% RH depending on product) |
|---|---|
| Design humidity | 85–95% RH |
| Recommended gas / pressure class | R404A, 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 | GLOBALG.A.P., HACCP, SANS 10147, SAQCC Gas registration |
| OEM parts held | Danfoss ETS/TES valve bodies, AKS 32R transmitters and EKC 202 controllers |
| Service deliverable | RH log across a full operating cycle |
| Response / lead time | 1–2 weeks |
| Location hub | Serving Dube TradePort SEZ, Dube AgriZone and surrounds off the N2 / King Shaka corridor |
Local context
Working in Dube TradePort
We service Dube TradePort SEZ, Dube AgriZone and the surrounding blocks of Dube TradePort, La Mercy, with access off the N2 and King Shaka corridor. Sub-tropical coastal humidity keeps wet-bulb temperatures high year-round, which raises evaporative condenser duty and accelerates coil corrosion.
Bulk-bin ventilation with sprout-inhibitor cycles Condensation on bins causes rot spread through the stack
Compliance
Documentation you receive
- GLOBALG.A.P.
- HACCP
- SANS 10147
- SAQCC Gas registration
- RH log across a full operating cycle
FAQ
Danfoss humidity control systems in Dube TradePort
How fast can a technician service Danfoss equipment at a potato & onion storage site in Dube TradePort?
Dube TradePort sits on the N2 and King Shaka corridor, so our La Mercy dispatch reaches most Dube TradePort SEZ sites inside a standard callout window. Emergency humidity control systems runs 24/7 because condensation on bins causes rot spread through the stack.
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 R404A/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 humidity control systems 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 GLOBALG.A.P. documentation your auditors expect.
What operating envelope do you commission this equipment to?
Potato & Onion Storage run at +4 °C to +10 °C at 85–95% RH, with humidity control systems performed against 45–95% RH depending on product. Condensation on bins causes rot spread through the stack
Related services & locations
- Humidity Control Systems — Prospecton
- Humidity Control Systems — Jacobs
- Humidity Control Systems — Mobeni
- Humidity Control Systems — Pinetown
- Humidity Control Systems — New Germany
- Humidity Control Systems — Westmead
- Carel Humidity Control Systems — Dube TradePort
- Citrus Packhouses — Dube TradePort
- Table Grape Packhouses — Dube TradePort
- Avocado Packhouses — Dube TradePort
- Deciduous Fruit Packhouses — Dube TradePort
Get started
Schedule an on-site diagnostic in Dube TradePort
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.