Pfannenberg PWI 6152 230V Air/Water Heat Exchanger 1.5 kW

PWI 6152 230V air/water heat exchanger, 1,500 W, partially recessed

The PWI 6152 230V is a partially recessed air/water heat exchanger of the Pfannenberg Ecool PWx 6000 series, rated 1,500 W at a water flow of 200 l/h with a 230 V single-phase fan. It removes heat from an electrical enclosure into a cooling water loop without letting outside air into the cabinet. Seven Star LLC supplies the PWI 6152 230V in Oman and the GCC as an independent supplier in Muscat.

The name decodes as PWI for the partially recessed form (the PWS siblings are side mounted), 6152 for the 1.5 kW class model and 230V for the supply. The manufacturer article number is 12892301055. The unit is part of a family with the PWS 6152, the same capacity in a side-mounted housing, and the PWI 6302C with a higher capacity.

PWI 6152 230V technical specifications

How the PWI 6152 230V removes heat

Warm air from the enclosure is drawn through a finned coil, where cooling water flowing inside copper tubes absorbs the heat. The cooled air returns to the enclosure. Because the enclosure air circulates in a closed loop, no dust, oil mist or humidity from outside reaches the electronics. The water carries the heat to a chiller, cooling tower or process water circuit.

The cooling capacity depends on the difference between the air temperature in the cabinet and the water inlet temperature, and on the water flow. The rating of 1,500 W is stated at 200 l/h under the manufacturer test condition with a water temperature of 10 °C and air at 35 °C (W10/A35). With warmer water the capacity falls, so confirm the actual water temperature available on site.

Water side requirements of the PWI 6152 230V

The data sheet permits inlet water above +1 °C up to +35 °C and a maximum operating pressure of 10 bar. Connections are 13 mm hose nozzles, and other connectors can be ordered. Use clean water; where the loop carries glycol or inhibitors, make sure they are compatible with copper and aluminium. A strainer in the supply line protects the coil from debris.

Condensation is an important design issue. If the water is much colder than the dew point of the enclosure air, moisture condenses on the coil. The unit includes a condensate drain, which must be routed to a safe place. Keep the cabinet doors sealed to prevent humid room air from entering.

Fit in the system and related parts

The PWI form sits partly in the cabinet wall with an installation depth of 60 mm, while the PWS 6152 230V sits on the outside. Other sizes of the PWx 6000 range include the PWS 6102 for 1,000 W, the PWI 6302C and PWS 6302 for larger loads and the PWS 6502 for 5,000 W. Compare with the cooling unit DTI 6X1E 230V when no water loop exists.

PWI 6152 230V selection and ordering checklist

• Heat load of the enclosure in watts
• Water inlet temperature and flow available, against 1,500 W at 200 l/h
• Water pressure, below 10 bar
• Whether partial recess or side mount is preferred
• 230 V supply and 2 A gG fuse
• Cut-out for a unit of 945.5 x 410 mm
• Condensate drain and hose connections

Installing and maintaining the PWI 6152 230V

Cut the opening, fit the gasket, secure the 17 kg unit and connect the hoses with clamps. Open the water valves slowly and bleed air from the circuit. Connect the plug-in electrical terminal and set the thermostat within +8 to +50 °C.

Inspect the coil for dust deposits on the enclosure side and check hoses for ageing. Test the condensate drain during humid months and flush the water side if the loop contains scale or biological growth.

Typical PWI 6152 230V applications in Oman and the GCC

Desalination, power, oil and gas and petrochemical plants in Oman and the GCC usually have a chilled water or cooling water loop available, and the electrical rooms are dusty, hot and sometimes corrosive. An air/water heat exchanger of this size suits drive and PLC cabinets, analyser racks and MCC sections next to a chilled water supply, in plants that need a sealed enclosure with no fan exchange of air.

PWx 6000 range in the family

Information to send with an RFQ for the PWI 6152 230V

• Part number PWI 6152 230V and quantity
• Heat load, set temperature and water data
• Cabinet size
• Supply voltage
• Delivery destination
• Required date

Documents and quotation

A product sheet for the series that includes the PWI 6152 230V is attached on this page; it carries the data tables, dimensions and the article numbers for the other variants of the size.

Seven Star LLC is an independent supplier in Muscat and is not an official channel of the manufacturer. Send the quantity, delivery location and project reference with your request and we will reply with availability, lead time and a formal quotation.