Carrier 50FC 020-099, Installation, Operation And Maintenance Instructions, Page: 16 / 80

16
A
C
B
D
E
β
B
E
F
A
C
D
β
7 - POSITIONING AND INSTALLATION
Side view after installation on roof (position C):
Standard roofcurb
Burner roofcurb
β
= maximum slope
β
= maximum slope
Air ducts connections
For units with vertical air
fl
ow, the ducts must be connected to the
pro
fi
les from underneath the roofcurb.
In order to carry out the air ducts follow the recommendations in
the paragraph 9.4 “Air ducts connections”.
The thickness of the sheet metal pro
fi
les to connect the discharge
and/or return ducts to the roofcurb are shown in the following
tables:
A
E
D
C
A
A
A
B
A
B
A
A
A
Dimensions (mm) A B C D E
Standard
roofcurb
020 to 047 50 798 321 619 243
052 to 062 50 1234 470 745 410
070 to 099 50 1575 470 715 410
Burner roofcurb
Dimensions (mm) A B C D E F G H I J
Burner
roofcurb
020 to 047
50 797 373 0 275 631 52 155 770 89
052 to 062 50 1229 470 376 207 619 85 155 1219 101
070 to 099 50 1570 470 373 126 704 85 155 1491 198
Standard roofcurb
G
E
D
C
F A
A
I
H
B
A
A
J
Important:
Check that the roofcurb height is su
ffi
cient to respect
the minimum sealing height required according to local regulations
(example: 150 mm minimum sealing height in France according
to DTU).
To do this, check that the “D” dimension of the roofcurb exceeds
the thickness of the roof plus the insulation plus the minimum
sealing distance required.
150mm min.
50FF/FC unit
Steel pan Joist
Roofcurb
Sealing
upsweep
D
Insulation
Dimensions (mm) A B C D E F β
Burner
roofcurb
020 to 047 782 750 103 679 34 490 3º (5,1%)
052 to 062 822 750 103 719 34 490 3º (5,5%)
070 to 099 855 752 103 752 34 490 2º (4,0%)
Dimensions (mm) A B C D E
β
Standard
roofcurb
020 to 047 472 440 103 369 34 3º (5,1%)
052 to 062 510 440 103 407 34 3º (5,5%)
070 to 099 486 440 103 383 34 2º (4,0%)