VEAB CWK 315-3-2.5 water duct cooler for round duct – Ø315 mm 1410m3 1260L/PU 8.3KW

VEAB CWK 315-3-2.5 is a professional duct water cooler for Ø315 mm air ducts, designed to cool air in ventilation and air-conditioning systems using cold water. The heat exchanger has copper tubes and aluminium fins, while the built-in stainless-steel tray collects the resulting condensate. This model is suitable for both central ventilation systems and cooling individual rooms or greenhouses.

CWK 315-3-2.5 is installed directly in a round air duct and uses chilled water as the energy carrier. This allows the air passing through the ventilation system to be cooled without the need for a direct evaporative refrigerant heat exchanger.

The construction is designed for easy maintenance – the casing has an opening cover for inspection and cleaning, while condensate is drained via a stainless-steel tray and G½" drain connection.

Technical specifications

• Manufacturer: VEAB
• Model: CWK 315-3-2.5
• Type: Duct water cooler
• Purpose: Ventilation-air cooling
• Heat-transfer medium: Cold / chilled water
• Air-duct diameter: Ø315 mm
• Number of heat exchanger rows: 3
• Fin spacing: 2.5 mm
• Pipe connections: Ø22 mm
• Condensate drain: G½"
• Internal heat exchanger volume: 1.61 l
• Maximum working pressure: 1.0 MPa / 10 bar
• Installation: In a horizontal air duct
• Heat exchanger: Copper pipes with aluminium fins
• Condensate tray: Stainless steel
• Air-duct connections: With rubber seals.

📐 Dimensions

According to the current VEAB technical documentation for CWK 315-3-2.5:

💨 Cooling capacity

Cooling capacity is not a fixed value. It depends on airflow and air temperature, humidity, as well as the temperature and flow rate of the chilled water.

For example, with water at 6/12°C, the VEAB table gives the following indicative results for CWK 315-3-2.5:

These values are example design points, not a constant product output. For a specific system, VEAB recommends calculation according to the actual air and water parameters.

💧 Control and automation

The CWK itself is a water-to-air heat exchanger. For automatic temperature control, the system can be supplemented with:

temperature controller → sensor → control valve → actuator → frost protection.

For example, VEAB specifies for the CWK 315-3-2.5 a two-way valve ZTV15-1.6 (Kvs 1.6) as a suitable option in its selection table.

This is important for the product page – control components must not be presented as included as standard, unless the specific offer explicitly states this.

💦 Condensate drainage

When warm, humid air is cooled, the heat exchanger temperature may fall below the dew point and condensation may form.

For this reason, the CWK is equipped with a stainless-steel tray that collects the water and allows it to drain through a G½" drain connection.

🛠️ Construction and maintenance

The heat exchanger uses copper tubes and aluminium fins, while the casing is made of protected sheet metal. The opening cover provides access to the interior for periodic cleaning and inspection.

Rubber seals on the round connections make integration into the ventilation system easier.

You can view the manual

🏭 Suitable for

VEAB CWK 315-3-2.5 is suitable for:

• ventilation and air-conditioning systems;
• cooling of supply fresh air;
• air-conditioning of individual rooms and zones;
• greenhouses and controlled environments;
• production and technical premises;
• systems with a chiller or another source of cold water.

The manufacturer explicitly states use both for cooling ventilation air and for individual cooling of specific rooms or zones.

📦 Product information

Model: CWK 315-3-2.5
Manufacturer: VEAB Heat Tech AB
Diameter: Ø315 mm
Warranty: 24 months

⭐ Key benefits

✔️ Professional water cooler for Ø315 mm air ducts
✔️ Operates with cold water
✔️ 3-row heat exchanger
✔️ Copper tubes and aluminium fins
✔️ Integrated stainless-steel condensate tray
✔️ Drain connection G½"
✔️ Maximum working pressure 10 bar
✔️ Openable housing for easy cleaning
✔️ Option for automatic temperature control
✔️ Manufactured by VEAB.