1210SHH_AMEN,page 8/29
A properly sized flue system is required for safe
operation of the heater. An improperly sized flue system
can cause unsafe conditions and/or create condensation.
The air heaters may be installed as a balanced flue (type
C) heater requiring both a combustion air inlet duct and a
flue pipe or as a power vented heater (type B) (the
combustion air is taken from the space where heater is
installed), which requires only a flue pipe exhausting to
outdoors.
All products of combustion must be flued to outdoor
atmosphere. Each heater installed as a type B appliance
must be fitted with an individual flue pipe and the
combustion air inlet opening must be provided with a
protection grill.
Each heater installed as a type C appliance must be
fitted with an individual combustion air/flue pipe system.
Type C2 appliance, with single duct system for supply of
combustion air and evacuation of flue gasses, are not
allowed.
6.1.2
Diameter & maximum flue pipe lengths
Flue pipe diameters and maximum pipe lengths in table 3
apply to both horizontal and vertical systems.
Add all straight sections and equivalent lengths for
elbow. The total combined length must not exceed the
maximum flue length.
6.1.3
Venter outlet attachment requirements
Depending on the size of flue pipe as determined in table
3, attach either the flue pipe directly to the collar or a
taper-type connector.
Table 3 : Maximum flue system pipe lengths
flue pipe
100
130
130
inlet pipe
100
130
130
flue pipe
9
9
9
inlet pipe
9
9
9
flue pipe
9
9
9
inlet pipe
9
9
9
flue pipe
0,75
0,75
0,75
inlet pipe
0,75
0,75
0,75
flue pipe
1,5
1,5
1,5
inlet pipe
1,5
1,5
1,5
Equivalent length of 90°
elbow
m
Max straight length vert.
flue outlet connection
m
Equivalent length of 45°
elbow
m
Heater socket & pipe dia
mm
Max straight length hor.
flue outlet connection
m
BSHH
055
083
102
- Use only one type of flue pipe dia
- recommended minimum flue length = 1m
IMPORTANT : CONDENSE DRAIN
A condense drain with trap must be fitted to the unit to
properly drain all condensation. The flue must be
installed in accordance with national and local
regulations. Failure to provide proper flueing could result
in death, serious injury and/or property damage. The air
heater must be installed with a flue to the outside of the
building. Safe operation of any power vented gas
apparatus requires a properly operating flue system,
correct provision for combustion air and regular
maintenance and inspection. The combustion products
are loaded with moisture, some of which will condense
out within the flue. No condensate leakage is permitted.
BSHH indoor horizontal flue runs must rise by 1° (17mm
per meter) from the appliance to ensure that the
condense returns to the flue drain.
Gasket sealed single wall seamless heavy gauge
aluminium pipes are required for use with condensing
gas appliances. All joints must be sealed to prevent
leakage of flue gases or condensation into the building.
For testing, the flue pipe should include a sealable test
point. Ideally the test point should be at least 450mm
away from the air heater flue connection socket.
However if a concentric flue is attached directly to the
connection sockets then the combustion should be tested
through the flue outlet collar via a drilled test point which
must be securely plugged on completion. Follow the flue
pipe manufacturer’s installation instructions for making
joints, including connections to the air heater, for
passing through a building element and for support
requirements.
Figure 5a
Figure 5b
Figure 5c
Electrical heating resistance
Figuur 5d
Figuur 5e
Antifrost thermostat
inside unit
to be set
at 3 - 5°C
Electrical heating
resistance
External sensor for
antifrost thermostat
Electrical heating resistance
positioned inside condensate
trap
Connection for PVC
tube dia 40mm
Condensate trap
(option nr OP928)
Sensor
thermostat
Dia 32mm connection
