ZENIT
80
+
TYPE TUBE RADIANT HEATER
Instructions for Installation and Servicing
32
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.
23.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
