Hoval DGV-6/30, Руководство по конструкции

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1 Use
1.1 Intended use
TopVent ® MG units are used for the heating of high spaces,
operating with fresh air, mixed air or recirculating air.
Intended use also includes compliance with the operating
instructions. Any use beyond this is considered improper
use. The manufacturer can accept no liability for damage
resulting from improper use.
1.2 User group
The units are only allowed to be installed, operated and
maintained by authorised and instructed personnel who
are well acquainted with the units and are informed about
possible dangers.
The operating instructions are for operating engineers and
technicians as well as specialists in building, heating and
ventilation technology.
1.3 Hazards
TopVent ® MG units are state-of-the-art and safe to operate.
Despite every precaution being taken, potential and not
immediately obvious risks always remain, for example:
■ Dangers when working with the electrical system
■ Dangers when working with components of the gas circuit
■ When working on the unit, objects (e.g. tools) could be
dropped.
■ Malfunctions as a result of defective parts
■ Danger caused by coming in contact with hot components
when carrying out work inside the unit or on the flue gas
system
2 Construction and operation
TopVent ® MG has been specially developed for use in high
spaces. It fulfils the following functions:
■ Heating (with gas-fired heat exchanger)
■ Fresh air supply
■ Mixed air operation
■ Recirculation operation
■ Air distribution with Air-Injector
■ Air filtration
The unit is installed under the ceiling and connected to a
fresh air duct. According to the position of the dampers,
it draws in fresh air and/or interior air, filters it, heats it in
the gas-fired heat exchanger and injects it into the interior
through the Air-Injector.
Thanks to its high performance and efficient air distribution
the TopVent ® MG covers a large area. Therefore, compared
to other systems, fewer units are needed to achieve the
required conditions.
2 different unit sizes and diverse output levels, as well as a
broad range of accessories make possible solutions tailored
to the requirements of each individual hall.
2.1 Unit construction
TopVent ® MG consists of the following components:
■ Mixed air box
■ Filter box
■ Heating section
■ Air-Injector
The components are bolted together, but can be dismantled
separately again.
2.2 Air distribution with the Air-Injector
The patented air distributor – called the Air-Injector – is the
core element. The air discharge angle is set by means of the
adjustable guide vanes. It depends on the air flow rate, the
mounting height and the temperature difference between
the supply air and room air. The air is therefore blown into
the room vertically downward, conically or horizontally. This
ensures that:
■ with each unit a large area of the hall can be covered,
■ the occupied area is draught-free,
■ the temperature stratification in the room is reduced, thus
saving energy.
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TopVent ® MG
Use