Ventilation system in HYPERLINE outdoor cabinets with free-air-circulation through the doors, walls and top

Diagram of air flow		Air flow in standard roof
Pictorial diagram of supplying fan units PW and heaters	Construction: 1. Fan unit PW 2. Thermostats 3. Heaters HVL031

Diagram of air flow		Air flow in non-standard roof

Pictorial diagram of supplying fan units PW and heaters	Construction: 1. Fan unit PW 2. Thermostat 3. Heater HVL031

Fan unit PW provides additional air cooling, and heater HVL 031 - heating-up outdoor cabinet's inner space

Ventilation system based on use of heat exchanger

In order to intensify the cooling process in cabinets with installed equipment with high heat dissipation, there is solution based on cross heat exchanger. Heat exchanger is a type of radiator, where there are two air flows: warm from the inside of the cabinet (radiator's plates collect heat) and second from the outside of the cabinet (cooled by exchanger). Cross system of the heat exchanger enables to retain tightness of the cabinet and external and internal air flows do not mix together.
Another solution is direct venting of the cabinet. In cabinet's roof or on the door there are mounted fans which pull external air (through double wall and filters system). External air goes through appliances which emit heat and is carried away outside by roof or perforations on the doors.

Pictorial diagram of air circulation in the cabinet with heat exchanger mounted on the door.

1.Roof 2.External wall (external mantle) 3.Double wall panel. Cabinet door 4.Heat exchanger 5.Double wall panel. Rear of the cabinet 6.Chamber of accumulators 7.Fan unit

Pictorial diagram of air circulation in the cabinet with heat exchanger mounted on the roof.

1.Roof cross heat exchanger 2.Roof 3.External wall (external mantle) 4.Double wall panel. Cabinet door 5.Double wall panel. Rear of the cabinet 6.Chamber of accumulators 7.Fan unit

Pictorial diagram of air circulation in the cabinet with direct venting

1.Roof 3.External wall (external mantle) 4.Double wall panel. Cabinet door 5.Double wall panel. Rear of the cabinet 6.Chamber of accumulators 7.Fan unit