Vents VUT 300 WH EC, Руководство пользователя

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8
VUT .. WH ЕС
STRUCTURE AND OPERATING LOGIC
The unit has the following operating logic (fig. 3):
Warm stale extract air from the room flows through the air ducts to the unit, is purified in the
extract filter and is supplied to the heat exchanger and exhausted outside by exhaust fan. Clean cold
air from outside is moved by supply fans to the unit where from it is directed to the supply filter. Then
cleaned air flows through the heat exchanger and is supplied to the room along air ducts.
Thermal energy of warm extract air is transferred to clean intake fresh air from outside and
warms it up. Heat recovery minimizes thermal energy losses, energy demand and operating costs for
climatization accordingly.
Intake air
Exhaust air Supply air
Extract air
Fig. 3. Unit operating logic
The unit is a framework construction that includes a frame made of sis rigidly fixed 25 mm thick
sandwich panels. The three-layer sandwich panels are made of two galvanized sheets, internally filled
with thermal- and sound-insulated layer.
The fig. 4 shows the unit design. The unit is equipped with quick-detachable service panels 14 for
scheduled repair and maintenance operations. The panels are specially sealed. The terminal box 15 is
detached to inner side of one of the side walls 13.
The terminal box incorporates a terminal block with the wires from the control block. While
connecting the unit to power mains route the wires though the screwed cable glands. The terminal
box inner side shows a wiring diagram for the unit connection.
The unit basic modification includes:
The remote control panel 9 is connected to the control system inside the unit casing
though the data cable;
Two single-inlet centrifugal fans, a supply 1 and an extract 2 fan with forward curved
blades and maintenance-free motors with external rotor and integrated overheating protection;
Plate counter-flow heat exchanger 3.
One water heater compatible with a threaded pipe G ¾.
Two filters: supply filter 4 with F7 filter class and extract filter 5 with G4 filter class. The
supply filter prevents dirt ingress from outside air to the room and protects the unit inner parts from
soiling. The extract filters protect the unit parts from soiling.
Some condensate may appear during heat recovery. Condensate is collected in the drain pan and
removed from the unit through the drain pipe 6.