Güntner · Tzaneen

Evaporator Coil Descaling for Güntner Systems in Potato & Onion Storage | Letsitele

Chemical and mechanical coil cleaning to recover lost evaporator duty. We support Güntner air coolers and finned condensers running R404A, R717 in potato & onion storage across Letsitele and Letsitele packhouse precinct.

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Technical highlights

SAQCC Gas certified evaporator coil descaling

SANS 10147 pressure and gas compliance, genuine Güntner OEM parts and rapid dispatch to Letsitele.

SAQCC Gas registered technicians handling R404A, R717
SANS 10147 pressure vessel and installation compliance
Genuine Güntner OEM parts — Güntner EC fan modules, defrost heaters and coil blocks
Same or next-day attendance to Letsitele, Tzaneen

Common maintenance vectors

What we find on these systems

Biofilm and scale removal
Drain and trap clearing
Fin comb and airflow verification
Fin corrosion in coastal and abattoir atmospheres
Incomplete defrost building an ice bridge on the coil face
EC fan controller faults after voltage surges

Dynamic specifications

Potato & Onion Storage duty on Güntner plant

Bulk stores with plenum ventilation and humidity control

Typical system duty	+4 °C to +10 °C (−30 °C to +8 °C air-off)
Design humidity	85–95% RH
Recommended gas / pressure class	R404A, R717 — handled by SAQCC Gas registered technicians
Equipment platform	Güntner Air coolers and finned condensers — GACC/GHF air coolers with EC fan technology and hot-gas defrost options
Compliance frameworks	GLOBALG.A.P., HACCP, SANS 10147, SAQCC Gas registration
OEM parts held	Güntner EC fan modules, defrost heaters and coil blocks
Service deliverable	Airflow and air-off temperature report
Response / lead time	Same or next-day attendance
Location hub	Serving Letsitele packhouse precinct and surrounds off the R71 / R529

Local context

Working in Letsitele

We service Letsitele packhouse precinct and the surrounding blocks of Letsitele, Tzaneen, with access off the R71 and R529. Long, hot lowveld summers regularly exceed 36 °C, so high-ambient head pressure control and shaded plant rooms are non-negotiable.

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
Airflow and air-off temperature report

FAQ

Güntner evaporator coil descaling in Letsitele

How fast can a technician service Güntner equipment at a potato & onion storage site in Letsitele?

Letsitele sits on the R71 and R529, so our Tzaneen dispatch reaches most Letsitele packhouse precinct sites inside a standard callout window. Emergency evaporator coil descaling runs 24/7 because condensation on bins causes rot spread through the stack.

Do you stock OEM components for Güntner systems?

Yes — Güntner EC fan modules, defrost heaters and coil blocks. Güntner (Germany) 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 evaporator coil descaling 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 evaporator coil descaling performed against −30 °C to +8 °C air-off. Condensation on bins causes rot spread through the stack

Related services & locations

Get started

Schedule an on-site diagnostic in Letsitele

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.