Vents VUT 300 WH EC, Руководство пользователя

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12
VUT .. WH ЕС
CONDENSATE DRAINAGE
Connect the condensate drain pipes 1, U-trap 3 (not included into delivery set) and the drainage
system 5 with metal, plastic or rubber pipes 2 and 4. The tubes must be sloped down by min. 3 °. 1 m pipe
must be sloped down by 55 mm. Before starting the unit fill the system with water and check that U-trap
is always filled with water. Make sure that the water drainage is correct. Wrong connection to drainage
system may result in condensate accumulation and outflow to the premise .
The condensate drainage system is designed for operation at the ambient temperature above 0 °C.
Do not connect several drain pipes from several air handling units to one U-trap!
Direct condensate outside without connection to drain system is not allowed!
Type А (mm) В (mm)
VUT 300 WH ЕС 140 70
VUT 400 WH ЕС 190 95
VUT 600 WH ЕС 140 70
1. Drain pipe
2. Connecting pipe
3. U-trap
4. Drain pipe
5. Sewage system
Fig. 9. Condensate drainage
Сirculation pump operation (not included into delivery set).
The circulation pump switches automatically on both in summer or winter mode when the fans
are started or at the beginning of the water coils preheating procedure and switches off as the fans
stop.
In case of water coil freezing danger no matter of the active summer/winter mode, the circulation
pump turns on. After the freezing danger is no longer imminent and after the alarm reset the
circulation pump reverts to the previous operation mode.
Bypass operation.
The heat exchanger is equipped with a temperature sensor to control the bypass damper position
to prevent its freezing. In case of the heat exchanger freezing danger, the bypass damper installed
on the supply side is opened to let supply air flow through the bypass air duct and extract air flow
through the heat exchanger to warm up a frozen surface. After defrosting and exhaust air temperature
increase the bypass air duct is closed and supply air flows again through the heat exchanger.