Читать книгу Installation, starting and adjustment of ventilation and air conditioning systems A Guide - - Страница 13

Duct air coolers (Fig. 11) are designed for cooling and dehumidification of supply, recirculating air or a mixture thereof in ventilation and air conditioning systems of industrial, public or residential buildings.

Fig. 11. Air cooler with ducted water and freon coolers

Water or non-freezing mixtures can be used as a refrigerant in ducted water coolers. The maximum allowable liquid pressure in them is 1.6 Mpa.

Freons are used as a refrigerant in ducted freon coolers. Upon delivery, the heat exchangers are filled with inert gas, which must be removed during connection to the refrigeration circuit.

The design of the cooler is a housing made of galvanized steel, inside which a heat exchanger, a drop trap and a pallet are installed.

The heat exchanger is made of copper tubes with aluminum fins arranged in a staggered order.

The freon cooler is distinguished by the design of the distribution unit ("spider") and the specifics of the refrigerant supply.

The collectors of the freon heat exchanger are made of copper tubes.

The drip trap (Fig. 12) is a set of special plastic plates that effectively trap condensate and collect it into a tray located in the lower part of the cooler body.

Fig. 12. The shape of the droplet trap plates.

The pallet is additionally thermally insulated and equipped with a discharge pipe for draining condensate

When installing the air cooler, it is necessary to ensure its horizontal position.