BENSON OUHA 100, Инструкция по установке и эксплуатации

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BENSON OIL UNIT HEATER
6
2.0 Installation
Note
It is a requirement that only qualified and
competent personnel may undertake
installation commissioning and servicing of
OUHA ( C ) Range Heaters.
Warning
All of the basic criteria must be satisfied prior
to commencing installation and
commissioning, additionally, the Unit Heater
must be positioned and installed so as to
comply with all the relevant standards and
guide lines as well as meeting national and
local fire regulations and insurance criteria,
especially if it is proposed that the heater is
to be installed within a special risk area (e.g.
proximity to where petrol engined vehicles
are stored or parked, where cellulose
spraying takes place, where woodworking
machinery is operated, etc,).
Indirect fired heaters must not be located in
hazardous areas, however, it is permissible
for the heater to supply air to such areas.
The heater must not be installed within an
environment where there is a high
concentration of chlorides, fluorides, salts, or
other aggressive or volatile chemicals /
compounds.
Nor should the heater be positioned where
the burner could be adversely affected by
high winds or draughts.
The heater must be installed so that it is
level. Supports for the heater must be
sufficiently robust to withstand the weight of
the heater and any ancillary equipment. Any
combustible material adjacent to the heater
or flue system must be so placed or shielded
so that its surface temperature does not
exceed 65C
The location chosen for the heater must
allow for the fitting of an effective flue
system.
The location must also allow for adequate
clearance for the air supply, return air
circulation, oil supply, electrical supply, whilst
also providing good and safe working
access.
Suspended free blowing Unit Heaters are at
their most effective when located as close to
the working area as possible. However care
should be exercised to avoid directing the
discharged air directly onto the occupants of
the area to be heated.
Where the passage of cold air causes
problems (e.g by entrances, loading bays
etc) it is considered favourable if the heater
is positioned so as to discharge towards or
across the cold air source from a distance
from 1.5m - 6m dependent upon the size of
the entrance and the air throw characteristics
of the heater. On exposed walls heaters
should be positioned so as to discharge
towards, or along the length of the exposed
wall. In areas where it is proposed that more
than one heater is to be installed, a general
scheme of circulation should be drawn up
and maintained, thereby offering the best
heat distribution.
Air pressure within the area heated and the
outside air pressure must remain the same,
factors influencing this would be the
presence of extraction systems, ventilation
systems, and various types of process plant.
OUHA 200-350 models can be installed to
allow the fans to work in opposite directions .
This enables the heater to be installed
centrally in the area to be heated and allows
warm air to be discharged to both the front
and rear of the heater
2.1 Installation Mounting Heights
OUHA models
The Heater must be installed within the
mounting heights indicated below in metres
Model OUHA 100 140 200
Min
2.0 2.0 2.4
Max
2.7 2.7 3.0
Model OUHA 250 300 350
Min 2.4 2.4 2.4
Max
3.5 3.5 3.5