—8—
RATINGS AND CAPACITIES
*
*
Ratings are for altitudes to 2000 ft. Ratings for units for altitudes over 2000 ft are 4% less for each 1000 ft above sea level. Ratings in sq ft are computed at
240 Btuh/sq ft for steam boilers.
UNIT
GAS
TYPE
NUMBER
OF
SECTIONS
MAX
INPUT
(BTUH)
HEATING
CAPACITY
(BTUH)
NET RATING
AFUE %
(WITH DAMPER)
APPROX
SHIP.
WT (Lb)
Btuh
Sq Ft
BS1AAN075
Natural
3
75,000
62,000
47,000
196
81.1
256
BS1AAN112
Natural
4
112,500
91,000
68,000
283
78.8
404
BS1AAN150
Natural
5
150,000
122,000
92,000
383
79.2
483
BS1AAN187
Natural
6
187,500
153,000
115,000
479
79.6
564
BS1AAN225
Natural
7
225,000
183,000
137,000
571
80.1
649
BS1AAN262
Natural
8
262,500
214,000
161,000
671
80.5
719
BS1AAN299
Natural
9
299,000
245,000
184,000
767
80.9
800
BS2AAN075
Natural
3
75,000
62,000
47,000
196
82.7
256
BS2AAN112
Natural
4
112,500
91,000
68,000
283
80.4
404
BS2AAN150
Natural
5
150,000
122,000
92,000
383
80.6
483
BS2AAN187
Natural
6
187,500
153,000
115,000
479
80.9
564
BS2AAN225
Natural
7
225,000
183,000
137,000
575
81.1
649
BS2AAN262
Natural
8
262,500
214,000
161,000
671
81.3
719
BS2AAN299
Natural
9
299,000
245,000
184,000
767
81.6
800
DIMENSIONS
MODELS BS1 and BS2
26
1
⁄
2
″
A
VENT
DAMPER
RELIEF
VALVE
LEFT SIDE
RIGHT SIDE
FRONT
29
″
12
1
⁄
4
″
2
1
⁄
2
″
N.P.T.
PRESSURE
GAGE
LOW WATER
CUT-OFF PROBE
GAS LINE
PRESSURE
LIMIT CONTROL
2
1
⁄
2
″
TRANSFORMER
S86
GAS
VALVE
LOW WATER
CUT-OFF
2
1
⁄
2
″
GLASS
GAGE
WATER
LINE
4
3
⁄
4
″
24
″
36
3
⁄
8
″
DIMENSIONS (In
.)
UNIT SIZE
A
VENT DIAMETER
075
11-1/4
5
112
14-1/2
6
150
17-3/4
6
187
21
7
225
24-1/4
7
262
27-1/2
7
299
30-3/4
7
CLEARANCES (In.
)
*
Service clearance requirement 24 in.
RIGHT SIDE
6
*
LEFT SIDE
6
*
TOP
6
*
BACK
6
*
FRONT
6
*
Summary of Contents for BS1
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