Unical DUA plus, Installation And User Instruction Manual

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Installation info
The DUA plus is a forced draught, room
seled boiler; so it does not need particular
ventilation openings for the combustion air,
in the room in whichit is installed.
POSITIONING OF TERMINALS FOR TYPE ‘’C’’ BOILERS
Position of the terminal Position of the terminal
Position of the terminal Position of the terminal
Position of the terminal Min. Distances Min. Distances
Min. Distances Min. Distances
Min. Distances
mm
-
Under a window
A 600
-
Under a ventilation opening
B 600
-
Under a gutter
C 300
-
Under a balcony (1)
D 300
-
From an adjacent window
E 400
-
From an adjacent ventilation opening
F 600
-
From vertical or horizontal air pipes or drains (2)
G 600
-
From an external corner of the building
H 300
-
From an internal corner of the building
I 1000
-
From the ground or from another floor
L 1800
-
Between two vertical terminals
M 1500
-
Between two horizontal terminals
N 1000
NOTES
(1) Terminals below a practicable balcony shall be arranged in such a way as to assure that the total run of smokes, from their outlet
from terminal up to outlet from balcony external perimeter, including the height of protection baluster, if any, is not less than 2 m.
(2) Distances of not less than 500 mm shall be adopted in placing the terminals, due to the proximity to materials subject to the action
of products of combustion such as plastic gutters or waterspouts, wooden jetties, etc.) unless adequate screening measures are
taken for the said materials.
The forced draught, room seled boilers, nor-
mally should evacuate the smokes on the
roof of the building. When, in some country, it is allowed to eva-
cuate on the front of the building, the fol-
lowing distances of the terminals, have to
be complied with:
TERMINALS POSITION
fig. 10