Heat exchanger WATER-AIR

o Designed for air heating/ cooling in ventilation and air-conditioning installations using working fluid: water or low temperature liquid. o Heating/ cooling water coils work with clean air, without any aggressive mixtures. o Units are provided with 2 openings 1/8 for draining and installation of air valves. Construction o Corpus of galvanized metal sheets with incorporated heat exchanger water-air constructed of cuprum pipes with aluminum lamellas. o Good contact between pipes and lamellas is achieved with mechanical distension. o All water coils are tested in density at 30 bar. o Maximal working pressure 10 bar. Water coils types: o Two-rows (2R) mainly used in heating mode. o Four-rows (4R) mainly used in cooling mode. o By customer request could be produced: six-rows (6R) and eight-rows (8R). Options only by request in the offices of Tangra-AV Ltd. o Drop separator with condensation tray suitable for installation after cooling water coils with air speed in the inlet section > 2 m/s. o Flexible connectors Hollander type for dimensions up to 2, flange type for dimensions over 2. o Frost protection recommended to be installed on each water coils after heat exchanger. o 3-way valve with electric motor (actuator) temperature regulation after heat exchanger with air flow regulation or temperature of the working fluid. o Circulation pump. o Power board, controllers and automation equipment. Installation Units are designed for direct installation on the air ducts (in-line systems) and also for incorporation in ventilation and air-conditioning equipment (air handling units).