Installation manual
19
Number of
machines
1
2
3
4
5
6
7
8
9
10
Exhaust duct
⌀
mm
100
200
300
300
400
400
500
500
600
600
Recommended
area of fresh air
intake
m
2
0.04
0.16
0.35
0.35
0.63
0.63
0.98
0.98
1.41
1.41
Minimum area of
fresh air intake
m
2
0.03
0.117
0.223
0.31
0.351
0.468
0.585
0.702
0.846
1.17
The exhaust duct diameter must not be reduced.
The multiple dryers must have separate backdraft dampers when connected through a shared exhaust duct.
If not, the load in the dryer will be affected by other dryers and become moist.
5.5
Exhaust dimensioning
It is important that the machine has correct air volume compared to each machines power. If the air flow is smaller or
larger this will result in a longer drying period.
If the outlet pipe is long or the ventilation is not properly designed we recommend to clean the outlet pipes periodi-
cally. The exhaust pipes shall be short in order for the machine to work in the best way.
Failure to install back draft dampers in shared dryer exhaust ducts can cause hazardous conditions such backflow
of combustible gases. Single or independent dryer venting is recommended. It is suggested that the use of 90° turns
be avoided; use 30° and/or 45° bends.
It is recommended that exhaust or booster fans not be used in the exhaust ductwork system. If an exhaust booster
fan is required, care must be taken to meet all other installation requirements.
The exhaust duct must be designed the static back pressure measured from the exhaust outlet connection does not
exceed the maximum allowable back pressure specified in Technical data.
Note!
1. The flue outlet of gas dryer shall be female and shall allow connection to a flue duct whose diameter com-
plies with the standards in force in the country where the appliance is to be installed.
2. When installing the exhaust duct of the gas dryer, keep a certain angle with the vertical wall so that any
condensate formed when operating the appliance from cold can be discharged.
3. The connection where the exhaust duct connects to the dryer should be sealed with steel clamp or duct
tape to prevent escaping the combustion products from the machine.
4. For gas dryer, vertical venting is prohibited.
87°
fig.W01619