DLS Series Side-Blow Coolers — WKDL Narrow-Space Evaporators

How Do You Cool a Narrow Corridor or Tunnel Without Blocking the Passage?

Ceiling coolers need headroom that narrow corridors and processing tunnels often lack. Floor units block forklift lanes. The WKDL DLS Series side-blow evaporators mount flat against a wall and discharge air horizontally across the room, delivering effective cooling in spaces as narrow as 2 metres without sacrificing any usable floor or overhead clearance.

WKDL DLS Series — Side-Blow Evaporators for Narrow Spaces

The DLS Series is designed for applications where conventional ceiling or floor evaporators simply do not fit. Seven models span 1.5 kW to 12.0 kW, with a slim wall-mount profile (typically 250–400 mm depth) that keeps the unit tight to the wall while directing chilled air sideways across the room. This makes the DLS ideal for processing corridors, pre-cooling tunnels, packaging line enclosures, and ante-rooms between temperature zones.

All DLS units use copper tube / aluminium fin coils with fin spacing options of 4.5 mm, 6 mm, and 9 mm. Electric defrost is standard. The compact form factor uses single-row or dual-row fan arrangements to maintain a shallow profile while still achieving effective air throws of 4–10 metres. Wall-mount brackets are included, and optional ceiling-suspension kits are available for corridor installations where wall space is occupied by racking.

The DLS line is popular in food processing plants, pharmaceutical clean rooms, flower cold storage corridors, and supermarket display-adjacent buffer zones throughout Southeast Asia, Eastern Europe, and Africa.

Key Specifications

CE (Manufacturer’s Declaration)
Manufacturer’s ISO 9001

• Operating Temperature — 0 °C to −25 °C
• Cooling Capacity Range — 1.5 kW (DLS-15) to 12.0 kW (DLS-120)
• Air Discharge — Side-blow horizontal, 4–10 m effective throw
• Unit Depth — 250–400 mm (slim wall-mount profile)
• Coil Construction — Copper tubes, hydrophilic aluminium fins
• Fin Spacing — 4.5 mm / 6 mm / 9 mm
• Defrost Method — Electric defrost standard
• Fan Motor — External rotor, IP54, 220 V / 380 V 50 Hz
• Refrigerants — R404A, R507A, R22, R134a

Model Range

DLS (Side-Blow) vs DL (Ceiling) — Which Do You Need?

Rule of thumb: If your room is narrower than 4 metres or ceiling height is restricted, use the DLS. For standard rectangular cold rooms with adequate ceiling clearance, the DL is more cost-effective.

Common Applications

• Processing corridors between production and cold storage areas
• Pre-cooling tunnels for fruit and vegetables before packing
• Narrow ante-rooms and air-lock spaces between temperature zones
• Packaging line enclosures requiring side-directed cooling
• Small pharmaceutical storage rooms with limited ceiling access

Recent Supply Example

A fruit export packing facility in Thailand ordered 12 × DLS-60 units for pre-cooling tunnels (3 m wide × 25 m long). Units were wall-mounted at 2.5 m height with 6 mm fin spacing for the high-humidity fresh produce environment. Delivered FOB Shanghai within 14 days at approximately USD 850 per unit. Total project value: ~USD 10,200.

Why Source Through hicool?

• Direct factory pricing — typically 30–50% below European equivalents
• Authorized WKDL distributor with full manufacturer warranty
• Complete documentation: dimension drawings, airflow diagrams, wiring schematics
• Express delivery: stock models 5–7 days; custom options 12–15 days
• Spare parts readily available: fan motors, defrost heaters, temperature sensors

📩 Need a quotation? Send your requirements to sales@hiqool.com or request a quote online. We respond within 24 hours with pricing, lead time, and technical datasheets.