1 Use
1.1 Intended use
TopVent
®
DGV units are heaters intended for heating high
spaces operating with air recirculation.
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
®
DGV 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
®
DGV has been specially developed for use in high
spaces. It fulfils the following functions:
■
Heating (with gas-fired heat exchanger)
■
Recirculation operation
■
Air distribution with Air-Injector
■
Air filtration (optional)
The unit is mounted under the ceiling and draws in interior
air. The air is heated in a gas-fired heat exchanger and
injected back into the room through the Air-Injector.
Thanks to its high performance and efficient air distribution
the TopVent
®
DGV 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
®
DGV consists of the heater unit and the air injector.
Both 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.
6
TopVent
®
DGV
Use
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