Operating kitchen exhaust systems in sub-zero temperatures introduces challenges unknown in temperate and tropical climates: condensation freezing in ducts, ice formation on discharge louvres, make-up air heating costs that can exceed kitchen energy budgets, and maintenance access limited by snow and ice. Souniny ESP systems with cold-climate adaptations address all of these.
| Parameter | Specification |
|---|---|
| Cold Climate Adaptations | Insulated ESP enclosure, heated drain lines, freeze-protected water systems, low-temperature rated electronics |
| Heat Recovery Option | Run-around coil system recovering 50-60% of exhaust heat for make-up air pre-heating |
| Condensation Control | Sloped internal surfaces, heated collection trays |
| Outdoor Rating | IP65 enclosure for external installations |
| Operating Range | Ambient -40°C to +40°C (with adaptations) |
| Energy Impact | Heat recovery reduces make-up air heating cost by 50%+ |
Application Scenarios
- Restaurant chain in northern Sweden: A hamburger chain with locations above the Arctic Circle in Sweden installed Souniny Heavy-duty Series with cold-climate adaptations including heated drain lines and IP65-rated external enclosures. The ESP modules are installed in outdoor rooftop housings at ambient temperatures reaching -35°C. The heated enclosure maintains internal temperature above +5°C, preventing ice formation on ESP plates. The system has operated through 3 winters without cold-related failures.
- Hotel kitchen in Harbin, China: A hotel in Harbin, where winter temperatures regularly drop below -30°C, installed Heavy-duty Series with a run-around coil heat recovery system. The heat recovery captures 55% of exhaust heat, pre-heating the -25°C make-up air to -5°C — reducing the main heating coil load by approximately 40 kW. The hotel’s engineering team calculated a 3.5-year payback on the heat recovery addition.
- University kitchen in Montreal, Canada: A campus dining facility in Montreal specified Souniny ESP with winter-specific features after a previous system (non-Souniny) suffered repeated freeze-related failures. The key difference: Souniny’s sloped internal drain channels and heated collection trays prevent ice accumulation that had previously caused cell deformation and electrical shorts in the competitor’s system.
- Ski resort restaurant (Swiss Alps): A mountaintop restaurant at 2,800m elevation in the Swiss Alps installed Heavy-duty Series with extreme cold adaptations. The system is accessed only by gondola and helicopter, making reliability paramount. The ESP has a satellite communication module that reports performance data to the valley maintenance base, allowing technicians to diagnose issues before scheduling a site visit. No unscheduled maintenance calls have been required in 2 years of operation.
