35
ENG
Installation
g0300122EN rel. 1.0 - 01.12.2021
Both the fl ue gas outlet and the combustion air intake can be moved using the accessories available, based on installation re-
quirements, with reference to the pressure drop values shown in Tables 7.e, 7.f and 7.g.
Notice:
the data shown in Tables 7.e, 7.f and 7.g refer to aluminium or stainless steel ducts.
Unit
DP
UG45 max. 70 Pa (0.0101 PSI)
d=80mm (3")
d=100mm (4")
d=120mm (4"3/4)
linear section of pipe
Pa/m (PSI/ft)
2.5 (1.1 x 10
-4
)
1 (1.5 x 10
-4
)
0.4 (1.8 x 10
-5
)
90° bend r/d=0.5
Pa (PSI)
6.4 (9.3 x 10
-4
)
2.6 (3.8 x 10
-4
)
1.2 (1.7 x 10
-4
)
90° bend r/d=1
Pa (PSI)
2.6 (3.8 x 10
-4
)
1 (1.5 x 10
-4
)
0.5 (7.3 x 10
-5
)
45° bend r/d=0.5
Pa (PSI)
3.2 (4.6 x 10
-4
)
1.3 (1.9 x 10
-4
)
0.6 (8.7 x 10
-5
)
fl ue exhaust terminal
Pa (PSI)
7 (1 x 10
-3
)
2.8 (4.1 x 10
-4
)
1.4 (2 x 10
-4
)
“T” section for condensate collection
Pa (PSI)
7.7 (1.1 x 10
-3
)
3.1 (4.5 x 10
-4
)
1.5 (2.2 x 10
-4
)
expansion in cross-section
Pa (PSI)
1 (1.5 x 10
-4
)
0.4 (5.8 x 10
-5
)
0.2 (2.9 x 10
-5
)
Tab. 7.e
Unit
DP
UG90 max. 70 Pa (0.0101 PSI)
d=80mm (3")
d=100mm (4")
d=120mm (4"3/4)
UG180 max. 70 Pa (0.0101 PSI)
2 x d=80mm (3")
2 x d=100mm (4")
2 x d=120mm (4"3/4)
linear section of pipe
Pa/m (PSI/ft)
7.7 (1.1 x 10
-3
)
2.6 (3.8 x 10
-4
)
1.1 (1.6 x 10
-4
)
90° bend r/d=0.5
Pa (PSI)
19.1 (2.8 x 10
-3
)
7.6 (1.1 x 10
-3
)
3.6 (5.2 x 10
-4
)
90° bend r/d=1
Pa (PSI)
7.6 (1.1 x 10
-3
)
3 (4.4 x 10
-4
)
1.5 (2.2 x 10
-4
)
45° bend r/d=0.5
Pa (PSI)
9.5 (1.4 x 10
-3
)
3.8 (5.5 x 10
-4
)
1.8 (2.6 x 10
-4
)
fl ue exhaust terminal
Pa (PSI)
21 (3 x 10
-3
)
8.3 (1.2 x 10
-3
)
4 (5.8 x 10
-4
)
“T” section for condensate collection
Pa (PSI)
23 (3.3 x 10
-3
)
9 (1.3 x 10
-3
)
4.3 (6.2 x 10
-4
)
expansion in cross-section
Pa (PSI)
3 (4.4 x 10
-4
)
1.2 (1.7 x 10
-4
)
0.6 (8.7 x 10
-5
)
Tab. 7.f
Unit
DP
UG150 max. 260 Pa (0.0377 PSI)
d=80mm (3")
d=100mm (4")
d=120mm (4"3/4)
d=150mm (6")
UG300 max. 260 Pa (0.0377 PSI)
2 x d=80mm (3")
2 x d=100mm (4")
2 x d=120mm (4"3/4)
2 x d=150mm (6")
UG450 max. 260 Pa (0.0377 PSI)
3 x d=80mm (3")
3 x d=100mm (4")
3 x d=120mm (4"3/4)
3 x d=150mm (6")
linear section of pipe
Pa/m (PSI/ft) 22.5 (9.9 x 10
-3
)
7.6 (3.4 x 10
-4
)
4 (1.8 x 10
-4
)
1 (4.4 x 10
-5
)
90° bend r/d=0.5
Pa (PSI)
66 (2.9 x 10
-3
)
26 (1.1 x 10
-3
)
12.3 (5.4 x 10
-4
)
5 (2.2 x 10
-4
)
90° bend r/d=1
Pa (PSI)
27 (1.2 x 10
-3
)
11 (4.9 x 10
-4
)
5 (2.2 x 10
-4
)
2 (8.8 x 10
-5
)
45° bend r/d=0.5
Pa (PSI)
33 (1.5 x 10
-3
)
13 (5.7 x 10
-4
)
6.2 (2.7 x 10
-4
)
2.5 (1.1 x 10
-4
)
fl ue exhaust terminal
Pa (PSI)
73 (3.2 x 10
-3
)
29 (1.3 x 10
-4
)
13.6 (6 x 10
-4
)
5.5 (2.4 x 10
-4
)
“T” section for condensate collection Pa (PSI)
79 (3.5 x 10
-3
)
32 (1.4 x 10
-3
)
15 (6.6 x 10
-4
)
6 (2.7 x 10
-4
)
expansion in cross-section
Pa (PSI)
10 (4.4 x 10
-4
)
4 (1.8 x 10
-4
)
1.9 (8.4 x 10
-5
)
0.8 (3.5 x 10
-5
)
Tab. 7.g
7.1.5
A
ppliance installation with air intake from the room
gaSteam humidifi ers can be also installed as type B appliances in
accordance with EN 1749:2020, i.e. with air intake from the room where
the appliance is installed.
IMPORTANT
:
for fl ues greater than 2 m long, a condensate
collection section or an appropriate drain is required.
300090
_
003
_
R02
B23
B23
Fig. 7.d
7.1.6
C
hecks
Verity that the water connections are correct, as follows:
• the feedwater supply line can be closed using a shut-off valve;
• a mechanical fi lter is installed on the feedwater line;
• water temperature and pressure are within the permitted values;
• the drain pipe is resistant to operating temperatures of 100°C (212°F);
• minimum inside diameter of the drain pipe is 50 mm (1”1/2);
• minimum slope of the drain pipe is greater than or equal to 5°;
• an inspection section is fi tted with connection to a condensate drain.
IMPORTANT:
once installation has been completed, to eliminate any waste and processing substances that may cause
foam when the water is boiling, fl ush the water intake pipe by directing the water directly into the drain, without running it
through the humidifi er.