Alfa
9
hot air gas-
fi
red air heaters
In support of engineering, installation, servicing, and maintenance
52.10.03.2017.eng
Method of Use
Only properly skilled personnel may install the unit in compliance with the
applicable regulations and decrees; wrong installation could cause people or
animal injury or damage to property for which the manufacturer cannot be
responsible. See “Gas/Electro Connections” (page 24-26).
The fuel supply inlet piping should thoroughly be cleaned and any foreign
material that might cause damage to the unit removed before connection of this
hot air unit. In the event of disrespect the manufacturer renounces responsibility
for any damage or injuries. Warranty claims are excluded in this case.
Consider carefully the schedule of hot air units’ locations and capacities, based
on the space you want to heat or ventilate. For a pertinent example see Fig. 1.
It is moreover necessary to satisfy the minimum installation parameters – see
Fig. 2. A clear space has to be allowed for on the side, making the burner and
exchanger accessible.
It is recommendable to use the WINDMAX secondary cowl
fl
aps that will
extend the air
fl
ow reach where the installation height is more than 3 m.
Installation in General
400
mm
600
mm
200
mm
V = 2 000 - 2 500mm
DIRECTION OF THERMAL RADIATION
obr. 2
Minimum installation space and recommendable working height
Fig. 1 Example of the units’ locations in space
Installation Safe Distances
Information on in
fl
ammability degrees/classes of responses to
fl
ames for a
choice of materials:
A –
fl
ameproof
– granite, sandstone, heavy porous concrete, bricks, ceramic tiles, special
plaster materials,
B – uneasily in
fl
ammable – Heraklit, Itaver,
C1 – hardly in
fl
ammable
– deciduous wood, plywood, hardened paper, composite board,
C2– medium in
fl
ammable
– chipboards, corkboards, rubber
C3– easily in
fl
ammable
– wood-
fi
bre boards, polystyrene, polyurethane, “lightweight” PVC
Safe distances from in
fl
ammable objects must be observed in the event
of on-pallet storage. See
Č
SN 06 1008 a
Č
SN EN 13501-1. For safe
distances of the units and
fl
ue ducts see
Č
SN 06 1008. Safe distance in the
direction of thermal radiation (for wooden
fi
xtures - Ds2,d0 Class) is not less than
1500 mm.
