Roberts Gorden BH-140 Manuel D’Utilisation
SECTION 3: C
LEARANCES
TO
C
OMBUSTIBLES
7
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.
2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream
from where the burner and burner tube connect.
from where the burner and burner tube connect.
*When installed in the first 10' (3 m).
FIGURE 9: U-Tube, Opposite 45° Reflector
(inches)
(centimeters)
Model
A
B
C
D
A
B
C
D
BH-40
- UNAPPROVED -
- UNAPPROVED -
BH-60
8
54
59
22
21
138
150
56
BH-80
8
60
65
22
21
153
166
56
BH-100
10
64
73
22
26
163
186
56
BH-115/125
10
70
77
22
26
178
196
56
BH-140/150
12
74
83
22
31
188
211
56
BH-175/200
12
76
85
22
31
194
216
56
B
A
C
D
FIGURE 10: 2-Foot Deco Grille and Protective Grille
(inches)
(centimeters)
Model
A
B
C
D
A
B
C
D
BH-40
6
27
52
27
16
69
133
69
BH-60
6
35
62
35
16
89
158
89
BH-80
6
38
65
38
16
97
166
97
BH-100
6
40
70
40
16
102
178
102
BH-115/125
6
46
76
46
16
117
194
117
BH-140/150
6
50
79
50
16
127
201
127
BH-175/200
8
52
82
52
21
133
209
133
C
B
D
A
FIGURE 11: Lower Clearance Shield*
(inches)
(centimeters)
Model
A
B
C
D
A
B
C
D
BH-40
6
34
27
34
16
87
69
87
BH-60
6
39
33
39
16
100
84
100
BH-80
6
40
38
40
16
102
97
102
BH-100
6
50
44
50
16
127
112
127
BH-115/125
6
54
48
54
16
138
122
138
BH-140/150
6
55
50
55
16
140
127
140
BH-175/200
- UNAPPROVED -
- UNAPPROVED -
C
B
D
A