REMKO VRS 25 INOX - Manual (Page 7)

7
(3) For furnaces with a total rated heat output of more
than 50 kW that are dependent on the air in the
room, evidence of an adequate air supply for com-
bustion has been provided if the furnaces are set up
in rooms that have an opening or a line leading to
the outside.
The cross-section of the opening must be at least
150 cm² plus and additional 2 cm²
for each kW of
rated heat output which is above 50 kW.
The lines’ cross-sections must have equivalent
measurements for air flow. The required cross-
section may not divided among any more than 2
openings or lines.
(4) Combustion air openings and lines may not be
closed or blocked unless the safety mechanisms
can ensure that the furnace can only be operated
when the flap is closed. The required cross-section
may not be constricted by the flap or the grille.
(5) As an exception to Paras. 1 to 3, for furnaces de-
pendent on air in the room, evidence of an ade-
quate air supply for combustion can be provided
other ways.
For example by:
A continuous line to the outside with a sufficient
cross-section that is attached to the burner or its lin-
ing. This must be adjusted to the suction capacity of
the burner and the line resistances (including the
protective air suction grille) so that combustion is
assured.
Important Information about Safe Setup
à The units may only be set up and operated in rooms
where there is enough air for combustion and the ex-
pelled air is guided to the outside via an exhaust sys-
tem.
à Units dependent on air in the room may only be set
up in rooms or buildings from which air is suctioned
out by means of fans (such as ventilation or exhaust
systems) if:
1. Safety mechanisms prevent the units and the air
suctioning system(s) from operating simultane-
ously.
2. The expulsion of exhaust is monitored by special
safety devices.
3. The exhaust produced by the units is expelled by
means of the air suctioning system(s).
4. The design or dimensions of the system ensure
that no dangerous negative pressure can be pro-
duced.
à The units must be placed firmly on a suitable, non-
flammable surface outside of traffic zones, for exam-
ple, away from cranes.
à The units must be set up and operated in such a way
that people are not exposed to exhaust or radiant
heat and fires cannot occur.
à The units must be set up in such a way that they do
not cause any hazards or unreasonable annoyances,
e.g. tremors, vibrations or noise.
à The units must be set up and installed in such a way
that they are easily accessible for monitoring, repair
and maintenance work.
à Operating elements which can result in dangerous
operating conditions when used improperly must be
protected from unauthorised operation if they are
generally accessible.
à We do not recommend suctioning in outside air di-
rectly with the standard combustion chamber. When
mounting the mixed air flaps (accessories), they
must be attached in the opposite direction. The per-
centage of fresh air supplied may not exceed 30%.
à The units may not be set up or operated in rooms or
areas susceptible to fire or explosions.
Setup on the Ground
The units must be placed firmly on non-flammable sur-
face outside of traffic zones, e.g. away from cranes.
A safety zone of 1 m must be maintained around the
units to protect them from damage in commercial
rooms, to ensure unhindered access for maintenance
and repair work on the unit and burner and, if neces-
sary, to prevent air intakes and outlets from blockage.
This safety zone is to be identified with a warning sign
that says:
Maintain a Safety Zone of 1 m
We recommend clearly marking heavily trafficked ar-
eas.
G
The units are suitable for operation when accesso-
ries are attached to the air intake or outlet sides.
G
The units are not suitable exclusively for use
as air supply units.
Heating Rooms
The units only may be operated in closed rooms or
warehouses if they have been equipped with a suitable
room temperature control thermostat (room thermostat).