ZENIT
80
+
TYPE TUBE RADIANT HEATER
User’s Manual
12
Combustion air may be drawn in from more spaces.
a) from inside (heated) space
b) from outside, in case outside combustion-air system is connected to the fan.
The combustion air must not drawn in from internal space in the following cases:
•
if the heated building is under lower pressure than the outside
•
if the athmosphere is contaminated with acid fumes, fluorocarbons, corrosive substances,dirt, oil, etc.,which can damage the
fan and pipe system
Tube length for combustion-air supply
6 meter with one elbow from 100 mm diameter tube.
15 m with two elbows from 150 mm diameter tube. More elbows can be used. One 90° elbow is correspond to 1 meter tube length
Combustion-air supply
Example for outside combustion-air supply:
When two appliances are controlled by one thermostat in that case a common combustion-air sypply can be used.The common duct of
two appliance must be Ø 150mm and should not exceed 15 m in lenght.Maximum two 90° elbows may be used.
10.picture: Outside combustion-air supply
Inhale opening
End plate
Exhaust arrangements of combustion products
•
Flue channel to the outside of building at each appliance
•
Common flue channel for two appliances
Flue pipe is not allowed to have a low point, it must be made of
Ø
100mm stainless steel or aluminium.The minimum ascent of flue
piping must be 2cm/m≈1°
Type of the exhaust system:
• Leading of combustion products across the wall
• Vertical leading of combustion products
The lenght of exhaust system:
The lenght of the exhaust system depend on the allowed maximal lenght and the used length of the appliance.The total lenght of ex-
haust system can be the difference of allowed maximum lenght (m) as per types (ZENIT-12…58) and the used lenght – at the installation
– plus 6 m.
L
:Total lenght of exhaust system
L
max
:The allowed maximal lenght of appliance (it is defined as per types)
L
used
:The used lenght of appliance (at the installation)
L = L
MAX
- L
used
+ 6 [m]
The total lenght of exhaust system can be completed with 1pc 90° elbow without any correction.
6.
exhaust system possibilities
