Table of Contents
Advertisement
6.3 Exhaust duct
• Only rigid or flexible metal duct should be used for exhausting.
• Plastic ducting is not to be used.
• Recommended material for exhaust is galvanized steel.
• The duct is not to be assembled with screws or other fastening means that extend into the duct and catch lint.
• The exhaust air should not be vented into a wall, a ceiling, or a concealed space of building.
• The exhaust duct must lead clear of the building as condensation may cause frost damage to the building.
• The exhaust duct must lead to the outdoors.
• The exhaust duct must be placed in such a way that it is protected on the outside.
• The exhaust duct must be smooth on the inside (low air resistance).
• The exhaust duct must have gentle bends.
6.4 Shared exhaust duct
It is recommended that each machine is connected to a separate exhaust duct.
When several machines shall use the same exhaust duct the exhaust duct must increase after each machine. The
recommended diameter increase progression is the one in the table.
If several machines are installed on the same exhaust pipe, it is recommended to adjust the airflow on the machines
when all machines are started and running a program with no heat.
Please consider that unnecessarily large ducts create issues with the draught.
Number of machines
Exhaust duct
⌀ mm
Recommended area
of fresh air intake
Minimum area of
fresh air intake
The exhaust duct diameter must not be reduced.
Installation manual
1
2
125
200
m
2
0.06
0.16
0.25
m
2
0.03
0.06
0.09
3
4
5
250
250
315
0.25
0.39
0.12
0.15
6
7
8
315
400
400
0.39
0.63
0.63
0.18
0.21
0.24
19
fig.6329
9
10
400
400
0.63
0.63
0.27
0.3
Advertisement
Table of Contents
