2-Fan Refrigeration Evaporator

Typical Applications

This evaporator was developed around the realities of seafood processing: rooms are washed down every shift, air carries salt and moisture, and product quality depends on fast, even cooling. Typical installations include fish receiving and sorting rooms, filleting and packing rooms at 0°C to +4°C, shellfish holding rooms, shrimp freezing preparation areas, and ice storage rooms adjacent to processing lines. The unit also serves meat and poultry preparation rooms, dairy handling areas and any hygienic cold space where stainless construction is specified. For facilities expanding processing capacity, multiple units can be distributed along the ceiling to keep air movement even over long processing tables.

Defrost Strategy for High-Humidity Processing Rooms

Seafood rooms introduce heavy moisture loads every time doors open and product moves, so frost builds quickly on evaporator coils. Electric defrost uses resistance heaters in the coil and drain line and suits rooms that can schedule defrost during breaks or low-activity periods. Hot-gas defrost routes compressor discharge vapor through the coil to melt frost using refrigeration energy already being produced, which shortens defrost time and reduces room temperature swing – valuable where product sits exposed on processing tables. Our engineers select the defrost method and cycle timing from your room’s humidity load, door openings and production schedule, so the coil stays frost-free without wasting energy or warming the room excessively.

Manufacturing Quality and Project Support

Each evaporator is assembled with mechanically expanded copper tubes in aluminum or stainless fins, pressure-tested and leak-checked, then fitted with balanced fan assemblies. Casings are fabricated for drainage with sloped pans and accessible service panels. Arteco matches the evaporator to room load and condensing unit capacity, and provides guidance on mounting height, throw distance and drain routing to keep the room at stable temperature and humidity.

Frequently Asked Questions

Is stainless steel construction necessary for seafood rooms?

For rooms washed down with salt-bearing water or acidic sanitizers, stainless casings and drain pans significantly extend service life compared with painted steel. Aluminum is a cost-effective alternative where washdown chemicals are milder. We recommend the material based on your sanitation program.

What room size does an 8–12 kW evaporator cover?

Capacity depends on room temperature, product load and door traffic. As a guide, units in this class serve processing rooms of roughly 40–120 m³ at chilling temperatures. Provide your room dimensions and duty details through our RFQ form for exact selection.

Can this evaporator run at -25°C freezer duty?

Yes. With the appropriate expansion device and defrost configuration, the unit operates down to -25°C room temperature. Coil spacing and fan selection are confirmed for frost behavior at low temperature during order review.

How often should the coil be cleaned in a processing plant?

Most seafood plants include evaporator coil rinsing in the weekly sanitation cycle, with drain pan checks daily. The unit’s open service access makes this quick; we provide a maintenance schedule with each installation.