SECTION 3: C
LEARANCES
TO
C
OMBUSTIBLES
9 of 59
NOTE:
1. All dimensions are from the s
u
rfaces of all t
ub
es, co
u
plings and el
b
o
w
s.
2. Clearances B, C and D can
b
e red
u
ced
b
y 50% after 25' (7.5 m) of t
ub
ing do
w
nstream
from
w
here the
bu
rner and
bu
rner t
ub
e connect.
FIGURE 12: Ventin
g
(inches)
(centimeters)
Model
A
E
F
A
E
F
BH-40
14
18
18
36
46
46
BH-60
14
18
18
36
46
46
BH-80
20
24
18
51
61
46
BH-100
20
24
18
51
61
46
BH-115/125
20
24
18
51
61
46
BH-140/150
20
30
18
51
77
46
BH-175/200
20
30
18
51
77
46
Radiant Tubes
Vent
Pipes
Unvented
Vented
A
E
F
Summary of Contents for BH-40
Page 2: ......
Page 4: ......
Page 6: ......
Page 51: ...SECTION 10 WIRING 45 of 59 10 3 Internal Wiring ...
Page 58: ...BH SERIES INSTALLATION OPERATION AND SERVICE MANUAL 52 of 59 ...
Page 59: ...SECTION 12 TROUBLESHOOTING 53 of 59 12 2 Manifold Gas Pressure Setting ...
Page 61: ...SECTION 13 REPLACEMENT PARTS 55 of 59 ...
Page 64: ...BH SERIES INSTALLATION OPERATION AND SERVICE MANUAL 58 of 59 ...
Page 66: ......
Page 67: ......
Page 68: ......