Bryan Boilers AB90-W User manual

Form No. 7510
(Rev. 6/05)
Bryan “Flexible Water Tube”
AB Series
Steam & Water Boilers
900,000 to 3,000,000 BTUH
Forced draft gas, oil or dual fuel fired
Steam Boiler
AB250-S150-FDG
Water Boiler
AB120-W-FDGO
Originators of the “Flexible Water Tube” design
BRYAN®BOILERS

Low initial cost, high operating efficiency
deliver substantial return on investment
Quality Construction Features:
•True “flexible water tube”
design guaranteed shock free
•Longer lasting with better
performance
•Full five sq ft of heating
surface per BHP
C
K. Bryan bent water tubes
are flexible, individually
replaceable without welding
or rolling. Never more than
two tube configurations.
L. Pressurized design
firebox with internal water-
cooled furnace with low
heat release rate.
M. Steam boilers with extra
large drum with high steam
release area ensure stable
water level and dry steam.
A. Water side or steam side interior accessible for
cleanout and inspection, front and rear openings,
upper and lower drums.
B. Large volume water leg downcomers promote
rapid internal circulation, temperature equalization and
efficient heat transfer.
C. Boiler tube and furnace area access panels: heavy
gauge steel casing with 2" high-temperature ceramic fiber
insulation, bolted and tightly sealed to boiler frame.
D. Flame observation port in access door at rear of boiler.
E. Singlesideaccess;combustionchamber,tubesandburner
head are completely accessible from one side simplifying
maintenance and minimizing floor space.
F. Minimum sized flue vent.
G. Control panel: all controls installed with connections to
terminal strip.
H. Forced draft, flame retention head type burner. Efficient
combustion of oil or gas, plus quiet operation.
I. Heavy steel boiler frame, built and stamped in accordance
with the appropriate ASME Boiler Code.
J. Heavy gauge steel boiler jacket with rust-resistant zinc
coating and enamel finish, insulated with 1½" fiberglass to
ensure exceptionally cool outer surface.
E
F
G
H
K
J
A
D
L
M
I
Bryan AB Series Boiler Specifications
AB90-W 900 (264) 720 (211) 21 (211) 752 (220) 22 (220) — 113 (10.5) 2,000 (907)
AB90-S 900 (264) 720 (211) 21 (211) — — 742 (337) 113 (10.5) 2,600 (1,179)
AB120-W 1,200 (352) 960 (281) 29 (281) 1,002 (294) 30 (294) — 148 (13.8) 2,250 (1,021)
AB120-S 1,200 (352) 960 (281) 29 (281) — — 990 (449) 148 (13.8) 3,050 (1,384)
AB150-W 1,500 (440) 1,200 (352) 36 (352) 1,253 (367) 37 (367) — 184 (17.1) 2,550 (1,157)
AB150-S 1,500 (440) 1,200 (352) 36 (352) — — 1,237 (561) 184 (17.1) 3,500 (1,588)
AB200-W 2,000 (586) 1,600 (469) 48 (469) 1,670 (489) 50 (489) — 244 (22.7) 3,050 (1,384)
AB200-S 2,000 (586) 1,600 (469) 48 (469) — — 1,649 (748) 244 (22.7) 4,150 (1,882)
AB250-W 2,500 (733) 2,000 (586) 60 (586) 2,088 (612) 62 (612) — 303 (28.2) 3,500 (1,588)
AB250-S 2,500 (733) 2,000 (586) 60 (586) — — 2,062 (935) 303 (28.2) 4,800 (2,177)
AB300-W 3,000 (879) 2,400 (703) 72 (703) 2,505 (734) 75 (734) — 350 (32.5) 3,750 (1,701)
AB300-S 3,000 (879) 2,400 (703) 72 (703) — — 2,474 (1,122) 350 (32.5) 5,100 (2,313)
BOILER
MODEL(1)
INPUT
MBH
(KW)
OUTPUT@ 80%
EFFICIENCY(2)
MBH (KW) HP (KW)
OUTPUT@ 83.5%
EFFICIENCY(3)
MBH (KW) HP (KW)
STEAM OUTPUT(4)
LBS/HR (KG/HR)
HEATING
SURFACE
SQ. FT. (M2)
APPROX.
SHIP
LBS. (KG)
NOTES: (1) W = Water / S = Steam
(2) Output and horsepower based on boiler industry standard of 80% of input.
(3) Output and horsepower based on an average natural gas combustion efficiency of 83.5% for hot water boiler. Actual combustion efficiencies for oil will be higher.
(4) Lbs. steam per hour from and at 212°F.
B

Guaranteed efficiency and easy
maintenance assure low cost operation
All Bryan AB Series boilers offer these operating and performance features
Guaranteed efficiency
The breakthrough in water tube boiler design that pro-
duced the AB Series provides operating efficiency so
reliable, we guarantee it to be 83.5% for hot water boilers
and 82% - 15 PSI / 80% - 150 PSI or better for steam.
The Bryan Flexible Tube
Bryan’s exclusive “Flexible Tube” design
eliminates the possibility of damage
from so-called “thermal
shock.” Tubes are easily re-
movable and replaceable,
without welding or rolling,
eliminating long, expensive
downtime should repairs
ever be required.
Water cooled furnace
The configuration of the
water tubes provides a
water cooled combustion
chamber. A high percent-
age of the heating surface is exposed to direct radiant
heat, increasing water velocities and heat transfer.
Large steam drum
The steam drum has generous water volume and steam
release area. This design, along with effective drum
internal functions, results in a stable water level and
produces extremely dry steam at all load conditions.
Accessibility of furnace and tube area
Inner panel provides easy and complete access to fur-
nace and boiler tube area, as well as to burner head. All
panels are heavily insulated and sealed to boiler frame.
All access is from only one side.
Compact design, minimum floor space
With our compact water tube design, the overall size
of the unit is less than most other types of boilers, yet
maintains a full five square feet of heating surface area
Water boiler
Combination thermometer and alti-
tude gauge, ASME Code rated boiler
relief valve, water temperature control
(240°F max std.), high limit control,
probe LWCO.
Steam boiler
Steam pressure gauge, steam pres-
sure control, combination low water
cutoff and pump control, auxiliary
low water cutoff, high limit pressure
control, ASME-rated safety valve,
water glass set.
Straight gas fired unit
Electronic combustion safety con-
trol, automatic operating gas valve,
safety gas valve, pilot solenoid valve,
pilot ignition assembly, main manual
gas shut-off valve, pilot cock, pilot
and main gas pressure regulators,
per HP. Needing only 24" for tube removal, and on only
one side of the boiler, the AB Series boiler occupies very
little space in the boiler room. This can result in consider-
able savings in building costs. Pressurized firing permits
minimum sized breaching and vent.
Multi-pass flue gas travel
High velocity four-pass flue gas travel is obtained by a
unique baffling system. This contributes to maximum fire
side heat transfer and overall high boiler efficiencies.
Thermal blend water return
Bryan’s unique “thermal blend” return blends cold or
cooler return water with warmer boiler water abridging it
to design operating temperatures. An injector tube directs
the “mixed” water flow through the downcomer to the
lower header and heating surfaces at a temperature above
possible condensing conditions. This reduces the possi-
bility of “cold spots” and
damage from corrosive
condensation.
Positive internal
circulation
Each pass of the Bryan
water tube slopes up-
ward. This configuration,
along with the large
volume downcomer
water legs, provides the
extremely rapid natural
thermal internal circula-
tion, promoting both high
efficiency of heat transfer and
uniform temperature throughout the
boiler. Eliminating stress damage caused
by unequal temperature distribution is especially
important for heating systems, particularly where inter-
mittent or continuous low temperature water returns may
be encountered.
OPTIONAL EQUIPMENT,
EXTRA COST
1. Manual reset high limit control
2. Manual reset low water cutoff
3. Auxiliary low water cutoff
4. Combination low water cutoff
and feeder
5. Alarm bells or horns
6. UL, CUL, CSD-1, FM, IRI or
other insurance approved
control systems
7. Indicating lights, as desired
8. Lead-lag systems for two or
more boilers with or without
outdoor reset control
9. Draft control system
10. Low NOx package
OPTIONAL CONSTRUCTION
When ordering, please specify:
1. Boiler size
2. Supply and return tempera-
tures required
3. Boiler relief valve setting
4. Type of fuel: natural, LP, or
other gas and/or No. 2 oil
5. If gas, type, BTU content,
specific gravity and pressure
available
6. Electric power voltage, phase
and frequency
7. Optional extra equipment or
construction
8. Special approvals required
(UL, CUL, CSD-1, FM, or IRI)
9. Altitude
Steam boiler
Optional construction to ASME Power
Boiler Code requirements for pressure
exceeding 150 psi to maximum of 300
psi design pressure.
Hot water boiler
Optional construction to ASME
Power Boiler Code requirements for
temperatures exceeding 240°F and/or
pressure exceeding 160 psi to maxi-
mum of 285° F operating and 300° F
design temperature and 250 psi.
Bryan AB Series Boilers Standard and Optional Equipment
STANDARD EQUIPMENT FURNISHED
air safety switch, control panel, all
controls installed and wired.
Straight oil fired unit
Electronic combustion safety control,
dual oil valves oil ignition transformer,
two-stage fuel unit, direct spark
ignition of oil, oil nozzle assembly,
control panel, all controls installed
and wired.
Combination gas-oil unit
Electronic combustion safety control,
automatic operating gas valve, safety
gas valve, pilot solenoid valve, pilot
ignition assembly, main manual gas
shut-off valve, pilot cock, pilot and
main gas pressure regulators, air
safety switch, manual fuel selector
switch, dual oil valves, gas pilot for
both fuels, two-stage fuel unit, nozzle
assembly, control panel, all controls
installed and wired.
Water
Boiler
Steam
Boiler

Bryan Steam LLC —Leaders Since 1916
783 N. Chili Ave., Peru, Indiana 46970 U.S.A.
Phone:[phone] • Internet:www.bryanboilers.com
Fax: [phone] • E-mail:[email protected]
Bryan AB Series Steam & Hot Water Boilers
Specifications subject to change without notice. Consult factory to consult on other boiler options.
Form No. 7510 ©2005 Bryan Steam LLC Printed in USA
65-7097
STEAM BOILER DIMENSIONS — inches (cm)
A B C D E F G H I J K L
Boiler Length Width Height Gas Train
Supply Clearance for Min. Tube Floor to
Model of Outside Over Overall Connection
Nozzle Return Flue Flue Servicing Removal Flow
Number Jacket Jacket Jacket Length (Approx.) 15 psi 150 psi Conn. Size Location Burner Clearance Nozzle
AB-90 44
15
/
16
38
1
/
2
77
1
/
4
76 1
1
/
4
4 FLG 3 NPT 1
1
/
2
NPT 10 12 36 24 79
5
/
8
(114.1) (97.79) (196.21) (193.0) (3.2) (10.16) (7.62) (3.81) (25.4) (30.5) (91.4) (60.9) (202.24)
AB-120 54
3
/
16
38
1
/
2
77
1
/
4
85
3
/
8
1
1
/
4
4 FLG 3 NPT 1
1
/
2
NPT 10 12 36 24 79
5
/
8
(137.6) (97.79) (196.21) (216.8) (3.2) (10.16) (7.62) (3.81) (25.4) (30.5) (91.4) (60.9) (202.24)
AB-150 63
1
/
2
38
1
/
2
77
1
/
4
94
3
/
4
1
1
/
2
6 FLG 3 NPT 1
1
/
2
NPT 10 12 36 24 79
5
/
8
(161.3) (97.79) (196.21) (260.7) (3.8) (15.24) (7.62) (3.81) (25.4) (30.5) (91.4) (60.9) (202.24)
AB-200 78
15
/
16
38
1
/
2
77
1
/
4
110 2 6 FLG 3 NPT 1
1
/
2
NPT 10 16
1
/
2
36 24 79
5
/
8
(200.5) (97.79) (196.21) (279.4) (5.1) (15.24) (7.62) (3.81) (25.4) (41.9) (91.4) (60.9) (202.24)
AB-250 94
7
/
16
38
1
/
2
77
1
/
4
125
1
/
2
2 6 FLG 3 NPT 1
1
/
2
NPT 12 15 36 24 79
5
/
8
(239.9) (97.79) (196.21) (318.8) (5.1) (15.24) (7.62) (3.81) (30.5) (38.1) (91.4) (60.9) (202.24)
AB-300 108
13
/
16
38
1
/
2
77
1
/
4
140
15
/
16
2 6 FLG 3 NPT 1
1
/
2
NPT 12 15 36 24 79
5
/
8
(276.4) (97.79) (196.21) (358.0) (5.1) (15.24) (7.62) (3.81) (30.5) (38.1) (91.4) (60.9) (202.24)
WATER BOILER DIMENSIONS — inches (cm)
A B C D E F G H I J K L
Boiler Length Width Height Gas Train Clearance for Min. Tube Floor to
Model of Outside Over Overall Connection Supply Return Flue Flue Servicing Removal Flow
Number Jacket Jacket Jacket Length (Approx.) Nozzle Nozzle Size Location Burner Clearance Nozzle
AB-90 44
15
/
16
34
3
/
4
69
1
/
2
76 1
1
/
4
3-F 3-F 10 12 36 24 74
7
/
8
(114.1) (88.3) (176.5) (193.0) (3.2) (7.6) (7.6) (25.4) (30.5) (91.4) (60.9) (190.2)
AB-120 54
3
/
16
34
3
/
4
69
1
/
2
85
3
/
8
1
1
/
4
3-F 3-F 10 12 36 24 74
7
/
8
(137.6) (88.3) (176.5) (216.8) (3.2) (7.6) (7.6) (25.4) (30.5) (91.4) (60.9) (190.2)
AB-150 63
1
/
2
34
3
/
4
69
1
/
2
94
3
/
4
1
1
/
2
3-F 3-F 10 12 36 24 74
7
/
8
(161.3) (88.3) (176.5) (260.7) (3.8) (7.6) (7.6) (25.4) (30.5) (91.4) (60.9) (190.2)
AB-200 78
15
/
16
34
3
/
4
69
1
/
2
110 2 3-F 3-F 10 16
1
/
2
36 24 74
7
/
8
(200.5) (88.3) (176.5) (279.4) (5.1) (7.6) (7.6) (25.4) (41.9) (91.4) (60.9) (190.2)
AB-250 94
7
/
16
34
3
/
4
69
1
/
2
125
1
/
2
2 3-F 3-F 12 15 36 24 74
7
/
8
(239.9) (88.3) (176.5) (318.8) (5.1) (7.6) (7.6) (30.5) (38.1) (91.4) (60.9) (190.2)
AB-300 108
13
/
16
34
3
/
4
69
1
/
2
140
15
/
16
2 3-F 3-F 12 15 36 24 74
7
/
8
(276.4) (88.31) (176.5) (353.0) (5.1) (7.6) (7.6) (30.5) (38.1) (91.4) (60.9) (190.2)