Evapco · Johannesburg
Freezer Room Construction for Evapco Systems in Seafood Processing & Fisheries | Nasrec
Freezer envelopes with heated frames, insulated slabs and defrost strategy. We support Evapco evaporative condensers and cooling towers running R717, R744, R404A in seafood processing & fisheries across Nasrec and Nasrec Industrial.
Technical highlights
SAQCC Gas certified freezer room construction
SANS 10147 pressure and gas compliance, genuine Evapco OEM parts and rapid dispatch to Nasrec.
- SAQCC Gas registered technicians handling R717, R744, R404A
- SANS 10147 pressure vessel and installation compliance
- Genuine Evapco OEM parts — Evapco spray nozzles, drift eliminators, fan drives and water treatment kits
- 4–8 weeks per room to Nasrec, Johannesburg
Common maintenance vectors
What we find on these systems
- Under-slab heating
- Door frame heater circuits
- Ice bridging at doorways
- Scale fouling on coil surfaces in hard-water regions
- Fan bearing failure from continuous high-ambient duty
- Blocked bleed lines raising conductivity and corrosion
Dynamic specifications
Seafood Processing & Fisheries duty on Evapco plant
Plate and blast freezers, ice plants and cold stores
| Typical system duty | −40 °C blast to −25 °C hold (−18 °C to −25 °C room design) |
|---|---|
| Design humidity | 85–95% RH |
| Recommended gas / pressure class | R717, R744, R404A — handled by SAQCC Gas registered technicians |
| Equipment platform | Evapco Evaporative condensers and cooling towers — Closed-circuit coolers, evaporative condensers, industrial ammonia packages |
| Compliance frameworks | HACCP, ISO 22000, SANS 10147, SAQCC Gas registration |
| OEM parts held | Evapco spray nozzles, drift eliminators, fan drives and water treatment kits |
| Service deliverable | Slab heating verification and pull-down test |
| Response / lead time | 4–8 weeks per room |
| Location hub | Serving Nasrec Industrial and surrounds off the N1 / N12 |
Local context
Working in Nasrec
We service Nasrec Industrial and the surrounding blocks of Nasrec, Johannesburg, with access off the N1 and N12. Highveld summers push afternoon ambients past 32 °C with heavy thunderstorm humidity, so condensers here are sized with a generous approach and cleaned before every summer.
Blast freezing at landing peaks plus ice plant duty Slow freezing forms large ice crystals and ruins texture
Compliance
Documentation you receive
- HACCP
- ISO 22000
- SANS 10147
- SAQCC Gas registration
- Slab heating verification and pull-down test
FAQ
Evapco freezer room construction in Nasrec
How fast can a technician service Evapco equipment at a seafood processing & fisheries site in Nasrec?
Nasrec sits on the N1 and N12, so our Johannesburg dispatch reaches most Nasrec Industrial sites inside a standard callout window. Emergency freezer room construction runs 24/7 because slow freezing forms large ice crystals and ruins texture.
Do you stock OEM components for Evapco systems?
Yes — Evapco spray nozzles, drift eliminators, fan drives and water treatment kits. Evapco (USA) equipment on R717/R744/R404A 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 freezer room construction 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?
Seafood Processing & Fisheries run at −40 °C blast to −25 °C hold at 85–95% RH, with freezer room construction performed against −18 °C to −25 °C room design. Slow freezing forms large ice crystals and ruins texture
Related services & locations
- Freezer Room Construction — City Deep
- Freezer Room Construction — Aeroton
- Freezer Room Construction — Crown Mines
- Freezer Room Construction — Selby
- Freezer Room Construction — Village Deep
- Freezer Room Construction — Denver
- Isocab Freezer Room Construction — Nasrec
- Poultry Processing Abattoirs — Nasrec
- Red Meat Abattoirs — Nasrec
- Meat Wholesalers & Butcheries — Nasrec
- Game & Venison Processing — Nasrec
Get started
Schedule an on-site diagnostic in Nasrec
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.