Bryan Boilers 390BHW4T7 - Manual (Page 2)

Bryan electric hot water or steam boilers...
For commercial, institutional and industrial applications
Bryan BH Series Boiler Specifi cations
Model
Input KW MBH BHP lbs/hr (kg/hr) Water lbs (kg) Steam lbs (kg) Input KW MBH BHP lbs/hr (kg/hr) Water lbs (kg) Steam lbs (kg)
60BH 196 6 207 (93) 900 (408) 1,000 (454) 660BH 2,156 66 2,277 (1,033) 3,350 (1,520) 3,600 (1,633)
75BH 245 7.5 259 (117) 900 (408) 1,000 (454) 720BH 2,352 72 2,484 (1,127) 3,500 (1,588) 3,800 (1,724)
90BH 294 9 311 (141) 1,000 (454) 1,100 (499) 780BH 2,548 78 2,691 (1,221) 3,600 (1,633) 4,000 (1,814)
105BH 343 10.5 362 (164) 1,000 (454) 1,300 (590) 840BH 2,744 84 2,898 (1,315) 3,700 (1,678) 4,100 (1,860)
120BH 392 12 414 (187) 1,000 (454) 1,300 (590) 900BH 2,940 90 3,105 (1,408) 3,850 (1,746) 4,200 (1,905)
135BH 441 13.5 466 (211) 1,200 (544) 1,400 (635) 960BH 3,136 96 3,312 (1,502) 4,000 (1,814) 4,400 (1,996)
150BH 490 15 518 (234) 1,200 (544) 1,400 (635) 1020BH 3,332 102 3,519 (1,596) 4,500 (2,041) 5,000 (2,268)
165BH 539 16.5 569 (258) 1,300 (590) 1,500 (680) 1080BH 3,528 108 3,726 (1,690) 4,500 (2,041) 5,100 (2,313)
180BH 588 18 621 (281) 1,300 (590) 1,500 (680) 1140BH 3,724 114 3,933 (1,784) 5,000 (2,268) 5,500 (2,495)
195BH 637 19.5 673 (305) 1,400 (635) 1,700 (771) 1200BH 3,920 120 4,140 (1,878) 5,250 (2,381) 5,700 (2,586)
210BH 686 21 725 (328) 1,400 (635) 1,700 (771) 1260BH 4,116 126 4,347 (1,972) 5,500 (2,495) 6,000 (2,722)
225BH 735 22.5 776 (352) 1,500 (680) 1,800 (816) 1320BH 4,312 132 4,554 (2,066) 5,600 (2,540) 6,100 (2,767)
240BH 784 24 828 (375) 1,600 (726) 1,900 (862) 1380BH 4,508 138 4,761 (2,160) 5,700 (2,586) 6,300 (2,858)
270BH 882 27 932 (422) 1,600 (726) 2,000 (907) 1440BH 4,704 144 4,968 (2,253) 5,800 (2,361) 6,400 (2,903)
300BH 980 30 1,035 (469) 1,700 (771) 2,200 (998) 1530BH 4,999 153 5,279 (2,394) 6,000 (2,722) 6,600 (2,994)
330BH 1,078 33 1,139 (516) 1,800 (816) 2,300 (1,043) 1620BH 5,293 162 5,589 (2,535) 6,200 (2,812) 6,800 (3,084)
360BH 1,176 36 1,242 (563) 1,800 (816) 2,400 (1,089) 1710BH 5,587 171 5,900 (2,676) 6,400 (2,903) 7,000 (3,175)
390BH 1,274 39 1,346 (610) 2,000 (907) 2,500 (1,134) 1800BH 5,881 180 6,210 (2,817) 6,600 (2,994) 7,200 (3,266)
420BH 1,372 42 1,449 (657) 2,000 (907) 2,600 (1,179) 1920BH 6,273 192 6,624 (3,005) 6,800 (3,084) 7,400 (3,357)
450BH 1,470 45 1,553 (704) 2,100 (953) 2,700 (1,225) 2040BH 6,665 204 7,038 (3,192) 7,000 (3,175) 7,600 (3,447)
480BH 1,568 48 1,656 (751) 2,150 (975) 2,800 (1,270) 2160BH 7,057 216 7,452 (3,380) 7,200 (3,266) 7,800 (3,538)
510BH 1,666 51 1,760 (798) 2,500 (1,134) 2,900 (1,315) 2280BH 7,449 228 7,866 (3,568) 7,400 (3,357) 8,100 (3,764)
540BH 1,764 54 1,863 (845) 2,500 (1,134) 3,000 (1,361) 2400BH 7,841 240 8,280 (3,756) 7,600 (3,447) 8,300 (3,765)
600BH 1,960 60 2,070 (939) 3,000 (1,361) 3,500 (1,588)
NOTES: * Lbs. steam per hour from and at 212°F. ** Not intended for use as a principal heating source for living space of any individual residence.
Effi ciency
Bryan Electric Boilers are nearly 95% effi cient at all load levels.
Varying loads do not effect the effi ciency since the resistive type
heating elements are immersed and designed to heat the water
directly. With a modulating step control only the elements that
are required to heat the water to the desired temperature/
pressure will be energized in order to encourage a balanced
load during operation.
Replaceable Hairpins
Each element hairpin is fi eld replaceable with no welding,
soldering, or brazing required. Each hairpin, as standard for
all Bryan Electric Boilers, is Incoloy sheathed and industrial size
0.430
؆ diameter. Elements are designed for 75 watts/sq. inch
for long life (optional 50 W/D available). Elements are individually
installed in a standard ANSI 150 lb. blind fl ange.
Steam Disengaging Area
Steam release area is near the middle of the horizontal vessel
for maximum steam disengaging area for dry steam and stable
water level.
Water Boiler Design
Vessel is designed for proper circulation around individual
elements to maximize heat transfer. High velocities, i.e. heat
pump applications, are handled with very little pressure drop
when using a horizontal tank for the pressure vessel. Supply
and return nozzle sizes can be made larger to accommodate
the fl ow requirements. Pressure drop is minimal through the
boiler and no dangers are involved with low fl ow conditions.
Bryan Series BH Electric hot water** or steam boilers are
compact, completely packaged and wired units with automatic
controls and featuring long life Incoloy sheathed elements.
Applications include hot water heating, steam heating, process
heating, and supplemental heat for heat pump type equipment.
All Bryan Boilers are built in accordance with the requirements
of the ASME boiler and pressure vessel code and are UL listed.
Water boilers are 150 psig MAWP and steam boilers either 15
psig or 150 psig. Higher pressures are available.
Electric Element Bundle
Each element
replaceable with
hand tools. Incoloy
sheathed, 75 watts/
sq. in. Spacing disc
for support and
proper circulation
around individual
elements Removable
threaded fi ttings
for ease of indi-
vidual element
replacement
150 lb. ANSI fl ange
Water boiler trim and controls Steam boiler trim and controls
Step
indicating
lights
Control panel
Lifting
lugs
ASME
relief
valve
Pressure and
temperature
gauges
(2) High
limit controls
Drain
Operating
control
Probe type low
water cutoff
control
Power
panel
Fused control
circuit
transformer
Blowdown
Fused control
circuit
transformer
Step
Indicating lights Control panel
Power
panel
Lifting
lugs
Standard Equipment Supplied:
HOT WATER DESIGN BOILERS:
Model “W” (150# ASME Design)
Temperature and pressure gauge, Operating
immersion aquastat, 2 high limit aquastats, Low
water cutoff, Relief valve, Metal jacket with 4
؆
fi berglass, 75 W/D Incoloy sheathed elements with
pressure connector power lugs. Separate power panel
and control panel, On/Off control switch, 120 volt
control transformer (fused), Magnetic contactors with
120 volt coil, Individual circuit Class JKS fusing, step
indicating lamps, First on/fi rst off progressive step
controller, National Board Inspection and UL Label.
Power Circuit Design:
All Bryan BH Series boilers feature copper bus bar distri-
bution, wherein the fuse clip for each branch circuit and
the main power lugs are all bolted directly to a bus bar.
The bus bar can carry the full load current of the
boiler, withstanding the largest available fault
current from the entering power system. Use of
the bus bar protects all current-carrying parts
and prevents damage to the boiler.
Optional Equipment Available:
Power panel door electric interlock. Preheat
switch. Flow switch. Manual reset controls.
Manual blowdown valve. Automatic blowdown
with 24 hour time clock. Alarms. Indicating lights.
Larger connection for heat pump applications.
Other Designs Available:
1) BE – Economical Electric Boilers
(Form 3600)
2) WT – Indirect Hot Water Supply Heaters
(Form
4800)
Standard Equipment Supplied:
STEAM DESIGN BOILERS:
Model “S” (15# ASME Design)
Model “Q” (150# ASME Design)
Steam pressure gauge w/gauge clock, Operating
pressure control, 2 high limit pressure controls,
Combination low water cutoff and pump control,
Auxiliary low water cutoff, Relief valve, Water glass
set, Metal jacket with 4
؆ fi berglass, 75 W/D Incoloy
sheathed elements with pressure connector power
lugs. Separate power panel and control panel,
On/off control switch, 120 volt control transformer
(fused), Magnetic contactors with 120 volt coil,
Individual circuit Class JKS fusing, Step indicating
lamps, First on/ fi rst off progressive step controller,
National Board Inspection and UL Label.
Standard Design Features
Nom. Output Steam Output* Approx. Shipping Weight Model Nom. Output Steam Output* Approx. Shipping Weight
ASME
relief
valve
Pressure
gauge
Probe type
low water
cutoff control
(2) high limit
controls
Operating
control
Water level
gauge glass
Low water
cutoff and
pump control
Heavy duty 11
gauge power
panel cabinet Single point
electric
connection
Each branch
circuit is fused
individually using
copper bus bar
for power
distribution
Separate
control panel
for 120V
controls
4" channel base
Louvered panel cover for
proper cooling air circulation
Immersion heating
bundles broken down in
150 KW bundles or less
Hinged
access
door for
access
to vessel,
ASME and
elements
4" fi berglass
insulation
16 gauge jacketing all
around structural frame
(zinc-coated rust
resistant primer and
enamel fi nished)