The room in which the device FUWI on Pellets is installed has to serve exclusively to this aim, it
should always be in conformity with the technical standards valid for this range of equipment, as well
as there should be appropriate ventilating openings and air blowing.
The built-in on solid fuel boiler rooms should fulfil the requirement of standard PN-
87/B-02411 the " built-in on solid fuel Boilers".
Boiler room according to above mentioned standard should follow the following requirements:
1. boiler should be placed in separate room, possibly centrally in relation of heated rooms,
2. boiler room should have artificial lighting, or natural lighting is recommended also,
3. distance of boiler from walls of room should be enough to have free access to boiler when
cleaning and preservation.
4. height of boiler room should be at least 2,2 m, in existing buildings the height of boiler room allows
minimum 1,9 m only with correct ventilation (supply-exhaust ventilation),
5. supply-exhaust ventilation should be with opening that can be closed, it goes for section of
minimum 200cm2, outlet should be 1,0 m over floor level.
6. ventilation exhaust channel should be made of non-flammable material with minimum diameter
14cm x 14cm of inlet opening under ceiling of boiler room. Exhaust channel should led out over roof
and be placed in vicinity of chimney.
7. in vicinity of heating room should be fuel store likely in separate room. The fuel store should be
such big that it would be possible to accumulate fuel for whole heating season,
Distance of back of boiler from wall should not be smaller than 0,7 m, the side of
boiler from wall not smaller than 1,0 m, however the front of boiler from opposite
wall not smaller than 2,0 m
Smoking channels and funnels of unsuitable type or dimensions (see: Table page 6)
can cause condensation problems, and influence negatively on burning parameters.
page 20
Controller of boiler is two-module device (in standard), consisting from following units:
1. Operator Panel, installed in front unit of boiler and for user is visible part of device together with
keyboard and alphanumeric display.
2. Operating Unit, is installed on DIN rail in front of boiler and built-up with electrical distribution box,
where all sensors and operator panel are connected to.
Operation Unit has to be connected with all sensors needed for proper functioning of boiler as well
as all executive unit – standard or optional (see page 10):
Tzew - external temperature sensor,
Tco - temperature sensor of heating medium after mixing valve,
Tk - temperature sensor of heating medium on exit from boiler,
Tcwu - temperature sensor of warm usable water,
Tpow - temperature sensor of heating medium return to boiler,
Tpod - temperature sensor of fuel feeder,
Foto - photocell (clearness probe).
page 9
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