15
7 - POSITIONING AND INSTALLATION
■
Standard roof curb:
The roof curb is shipped from the factory with its maximum
height.
First, the lifting grips must be removed. Each grip is
fi
xed to
the roof curb using four M10 screws.
When the roof curb is perfectly level, the adjusting screws
must be tightened again and the
fi
xing screws must be placed.
At this time the lifting grips must be removed, because they
prevent the correct waterproof sealing.
C
D
α
β
A
B
E
30mm
30mm
C
Dimensions
(mm)
Roof curb with burner
A
B
C
α
D =
f(
α
)
β
E =
f(
β
)
100 to 120
2188 3385 1374 6,5º (11,4%) 1164 3,8º (6,7%) 1164
130 to 170
2188 3689 1374 6,5º (11,4%) 1164 3,5º (6,1%) 1164
180 to 220
2188 5021 1374 6,5º (11,4%) 1164 2,5º (4,4%) 1164
250 to 280
2188 5975 1374 6,5º (11,4%) 1164 2,1º (3,9%) 1164
Dimensions
(mm)
Standard roof curb
A
B
C
α
D =
f(
α
)
β
E =
f(
β
)
100 to 120
2188 3385 655
6,5º (11,4%) 445 3,8º (6,7%) 445
4,8º (8,4%) 500 3,4º (5,9%) 500
4,0º (7,0%) 526 3,0º (5,2%) 518
3,0º (5,2%) 558 2,0º (3,5%) 564
130 to 170
2188 3689 655
6,5º (11,4%) 445 3,5º (6,1%) 445
4,8º (8,4%) 500 3,0º (5,2%) 475
4,0º (7,0%) 526 2,6º (4,5%) 500
3,0º (5,2%) 558 2,0º (3,5%) 535
180 to 220
2188 5021 655
6,5º (11,4%) 445 2,5º (4,4%) 445
4,8º (8,4%) 500 2,0º (3,5%) 487
4,0º (7,0%) 526 1,9º (3,2%) 500
3,0º (5,2%) 558 1,5º (2,6%) 529
250 to 280
2188 5975 655
6,5º (11,4%) 445 2,1º (3,9%) 445
4,8º (8,4%) 500 2,0º (3,5%) 455
4,0º (7,0%) 526 1,5º (2,6%) 500
3,0º (5,2%) 558 1,0º (1,7%) 555
When the roof curb is perfectly level, the adjusting screws must
be tightened again and the
fi
xing screws must be placed.
The following table lists both the maximum angle and di
ff
erent
adjustment angles:
Then the
fi
xing screws of the reinforcing angle pieces have to
be removed and all the adjusting screws have to be loosened
(M10). At that time the roof curb can be aligned to correct the
angle of the roof. It is recommended to use a leveler.
C
D
α
β
A
B
E
30mm
C
30mm
Joist
Adjustable
angle pieces
Self-drilling
screws
Reinforcing
angle piece
Then, the adjustable angle pieces must be
fi
xed with 4.8 hexagonal
self-drilling screws (supplied from the factory) or by means of
electric spot welding.
■
Roof curb with burner:
The roof curb is shipped from the factory with its minimum
height. In this case, due to the weight of the gas burner, lifting
grips and slings can be used to carry out leveling.
The
fi
xing screws of the reinforcing angle pieces have to be
removed and all the adjusting screws have to be loosened
(M10). At that time the roof curb can be aligned to correct the
angle of the roof. It is recommended to use a leveler.
The following table lists both the maximum adjustment angles:
The next step will be to check the leveling of the roof curb. The
procedure is di
ff
erent for the standard roof curb and for the roof
curb with burner:
Short side:
Long side:
Short side:
Long side:
Reinforcing angle piece
Adjusting screw
Fixing screw
Summary of Contents for 50FC Series
Page 63: ......