Roberts Gorden BH15 Manuel D’Utilisation
SECTION 3: C
RITICAL
C
ONSIDERATIONS
7
NOTE:
1. All dimensions are from the Tube surface.
2. Clearances B, C and D can be reduced by 50% after 7 m of tubing downstream
2. Clearances B, C and D can be reduced by 50% after 7 m of tubing downstream
from the burner.
3. All measurements are in Millimeters.
FIGURE 13: U-TUBE, OPPOSITE 45° TILT
Mode
l
BH
1
5
BH
2
0
BH
2
5
BH
3
0
BH
3
5
BH
4
0
BH
4
5
BH
5
0
A
200
200
200
250
250
275
300
300
B
1370
1530
1530
1630
1780
1830
1880
1930
C
1500
1650
1650
1860
1960
2040
2110
2160
D
560
560
560
560
560
560
560
560
A
C
B
D
FIGURE 14: U-TUBE, PROTECTIVE GRILLE
Mode
l
BH
1
5
BH
2
0
BH
2
5
BH
3
0
BH
3
5
BH
4
0
BH
4
5
BH
5
0
A
150
150
150
150
150
150
200
200
B
890
970
970
1020
1170
1220
1270
1380
C
1580
1730
1730
1910
1980
2050
2110
2210
D
760
940
940
1000
1090
1150
1200
1300
A
C
D
B
FIGURE 15: U-TUBE, VENTING
Mode
l
BH
1
5
BH
2
0
BH
2
5
BH
3
0
BH
3
5
BH
4
0
BH
4
5
BH
5
0
E
1000
1000
1000
1000
1000
1000
1000
1000
F
500
500
500
500
500
500
500
500
Radiant tubes
Fan
Unvented
Vented
E
F