2.5
Air intake and
flue connections
The gaSteam humidifier is an approved type C appliance (sealed appliance). Regarding the installation
type, the following configurations are possible: B23, C13, C33, C43, C53.
Important: the air intake pipes and flues must be installed and positioned according to the
corresponding legislation and standards in force, as well as to the any national or local provisions, and
therefore the validity of the diagrams below should always be verified.
The air intake/flue gas exhaust pipes must be connected as shown in the following figure.
Fig.2.b
Ref. Description
A Flue gas outlet
B Combustion air intake
For further requirements, use flue gas accessories available on the market. The maximum lengths
specified in the following installation diagrams have been verified using CAREL pipes.
For the position of the combustion air intake and flue gas outlet, see the paragraph “Dimensions by
model”.
The indoor version is factory-set as follows:
o
flue gas outlet from the top of the humidifier;
o
air intake from the rear;
o
supplied with a 135 mm long inspectable section of piping (two sections for UG180/UG300) and a
135 mm section for condensate collection.
Note: assemble the condensate collection section and connect a pipe to the hole on the side to drain
the condensate and prevent it from causing the burner to malfunction.
Both the flue gas outlet and the combustion air intake can be moved using the accessories available,
based on installation requirements, with reference to the pressure drop values shown in the table.
pipe diameter (aluminium or stainless steel)
UG45 DP d=80mm d=100mm d=120mm
linear section of pipe l=
1m
Pa
2.5 1 0.4
90° bend r/d=0.5 Pa 6.4 2.6 1.2
90° bend r/d=1 Pa 2.6 1 0.5
45° bend r/d=0.5 Pa 3.2 1.3 0.6
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