BH-S
ERIES
I
NSTALLATION
, O
PERATION
AND
S
ERVICE
M
ANUAL
58
SECTION 14: GENERAL SPECIFICATIONS
14.1 Material Specifications
14.1.1 Reflectors
.024 Aluminum
(Optional .024 Stainless Steel Type 304)
14.2 Heater Specifications
14.2.1 I
g
nition
Fully automatic spark ignition with safety shut-off.
14.3 Suspension Specifications
Hang heater with materials with a minimum working
load of 75 lbs (33 kg).
See Page 14, Figure 14
.
14.4 Controls Specifications
Time switches, thermostats, etc. can be wired into
the electrical supply. External controls supplied as an
optional extra.
General Specifications for BH-Series heaters are as follows:
*
See Page 4, Section 3
for clearances to combustibles.
GAS PRESSURE AT MANIFOLD:
Natural Gas:
3.5" wc
LP Gas:
10.5" wc
PIPE CONNECTION:
1/2" NPT (for BH-40, 60, 80, 100, 115 & 125)
3/4" NPT (for BH- 140, 150,175 & 200)
DIMENSIONS:
Vent Connection Size:
4" (10 cm)
Outside Air Connection Size: 4" (10 cm)
Refer to figure above for dimensional information.
GAS INLET PRESSURE:
Natural Gas:
for BH-40, 60, 80, 100,
115, 125, 140, 150
4.6" wc Minimum
for BH-175, 200
5.0" wc Minimum
14.0" wc Maximum
LP Gas:
11.0" wc Minimum
14.0" wc Maximum
ELECTRICAL RATING (ALL MODELS):
120 V - 60 Hz, 1 A
Turbulator
(
select
m
odels
)
Si
de
V
i
e
w
Reflector
12.5"
(32
c
m)
E
nd
V
i
e
w
11"
(28
c
m)
M
ini
m
u
m L
engt
h
A
Burner
Tube
12.5"
(32
c
m)
Heat Input Rate
Len
g
th “A”
Recommended
Minimum Mountin
g
Hei
g
ht*
Model
(Btu/h) x (1000)
Minimum
Space
Spot
BH-40
40
10
'
(3 m)
8-10
'
(2.4 - 3 m)
8
'
(2.4 m)
BH-60
60
20
'
(6 m)
10-12
'
(3 - 3.6 m)
9
'
(2.7 m)
BH-80
80
20
'
(6 m)
12-15
'
(3.6 - 4.5 m)
11
'
(3.3 m)
BH-100
100
30
'
(9 m)
12-15
'
(3.6 - 4.5 m)
12
'
(3.7 m)
BH-115
115
30
'
(9 m)
15-20
'
(4.5 - 6 m)
15
'
(4.6 m)
BH-125
125
40
'
(12 m)
15-20
'
(4.5 - 6 m)
15
'
(4.6 m)
BH-140
140
40
'
(12 m)
20-25
'
(6 - 7.6 m)
20
'
(6.1 m)
BH-150
150
50
'
(15 m)
20-25
'
(6 - 7.6 m)
20
'
(6.1 m)
BH-175
175
50
'
(15 m)
25
'
(7.6 m)
23
'
(7 m)
BH-200
200
60
'
(18 m)
25
'
(7.6 m)
25
'
(7.6 m)
