Burnham V903A User manual

Cast Iron Commercial Water or Steam Boiler
447 to 2367 MBH Input
Oil, Gas, or Oil/Gas Combination
30, 50, or 80 PSI
Cast Iron Sectional Design
Water or Steam
Top or Rear Venting
Exclusive Optional SBCªBoiler Control
Ð M aximizes System Efficiency
Series
V9
1

2
Installation & Service Flexibility
ThecastironsectionaldesignoftheV9boilermakesiteasyto
maneuver through doorways and into the boiler room. In addi-
tion to being shipped as loose sections, the boiler is available
with factory-assembled sections or as a completely packaged
andre-testedunit.Packagedunits,fastenedtoasteelskid,
areeasilymaneuveredthroughstandard36"x80"doorways.
•Hassle-free Section Assembly
V9boilersectionshavereinforcedlugsthatareused
to assemble the sections with individual draw rods
resulting in fast, strain-free assembly.
The sections can be assembled using two common
toolsÑ a 3/4" drive ratchet with a 1-1/16" deep socket
and wrench. The sections are surface ground to ensure
smooth surface mating. An elastic sealant and fiberglass
rope are used on all section joints for a completely sealed
and pressure-tight assembly.
•Extensive Testing Methods
Each boiler section is hydrostatically tested at 2-1/2 times
 theratedworkingpressureatthefoundry.Factory 
assembled sections are tested at 1.5 times the rated
working pressure.
•Rear or Top Venting
Asaforceddraftboiler,theV9
provides optimum draft for controlled
efficiency, eliminating the need for
high chimneys or induced draft fans.
AuniquefeatureoftheV9boilerisit
can be vented from the rear or the
top. This enables easy chimney or
sidewall venting for maximum
installation flexibility.
Top outlet venting saves floor space
and reduces installation time and
materials. A plugged tapping is
provided to take flue outlet pressure
readings.
Available in ten sizes with gross output ratings from 347 to
1900MBH,theV9Seriesresgas,oilorcombinationgas/oil
and is available equipped with either steam or water trim. The
productmeetstheenergyefciencyrequirementsofASHRAE
90.1withcombustionefcienciesupto86%.
Cast iron construction, ease of assembly, two venting options,
andstringenttestingmethodsmaketheV9Seriesboilerby
Burnham Commercial your commercial heating solution.
American-Made Cast Iron ConstructionÐ
BC25-HSi
Burnham CommercialÕ s unique
BC25-HSicastironhasanextremely
high silicon content, making it
stronger and more flexible. It offers
better thermal shock resistance and
greater heat transfer capabilities than
othercastironproducts.BC25-HSi's
properties allow Burnham Commercial
to maintain the highest level of quality
from start to finish, and provide a
product that is optimized for hydronic
heating applications
.
•Manufactured with Quality
Cast iron sections are poured at
 BurnhamFoundry,LLCinZanesville
 Ohio.Thefoundryusesstate-of
the-art technology and production
techniques which ensures the availability of high quality
boiler sections.
•Cast Iron Nipple Difference
Whilegasketsusedbyother
manufacturers can break down
from oils and contaminants, the
 V9'scastironnipplesremain
unaffected, ensuring long life and
eliminating costly repairs.
 TheV9sectionassemblyincludesprecisionmachinedcast
iron nipples that expand and contract along with the
sections they join, providing integrity to the entire
assembly. Additionally, cast iron nipples resist boiler flue
gases and petroleum based chemicals, including corrosion
inhibitors, pump lubricants and antifreeze.
Your Commercial Heating Solution!
Cast Iron Commercial Water or Steam Boiler
Cast Iron Commercial Water or Steam Boiler
V9 Series

Front Mounted Controls
for easy adjustment
and maintenance
Top or Rear Outlet
with adjustable lock-type
damper (not shown); includes
plugged tapping for outlet
pressure readings
Removable Side
Jacket Panels
Easy access to all cleanouts
and flue surfaces
Burner Mounting Plate
with flame observation port
4 Burner Manufacturers
Optionstobesttyourneeds
V9 Series - Hot Water or Steam Boiler
Maximum Allowable Working Pressure (MAWP): 80 PSI-Water; 15 PSI-Steam
Commitment to Quality
Burnham Commercial, "America's Boiler Company," has earned
a reputation for quality and dependability. Built for a variety of
applications,theV9Seriesisrightforyournextjob.
Individual Draw Rods
with reinforced lugs for
strain free assembly
Optional
Tankless Heater
Providesdomestichotwater
Cast Iron Nipples
ensure the integrity of the section
assembly and resist petroleum
based chemicals and flue gases
Rear Observation Port
Includes plugged tapping
for over-fire draft readings
(not shown)
Wet Base
Watersurroundsthe
combustion chamber for greater
heat transfer.
Cast Iron Vertical Design
with pinned heating surface
for maximum heat extraction
Burnham Commercial, "America's Boiler Company," has earned
3

4
SBCªBoiler Control System
Exclusive Optional Feature for Burnham Commercial Boilers
Boiler Monitoring & Diagnostic Displays
•Two-linebysixteencharacterLCDdisplay
•Automaticallypresents
boiler sequence, alarm,
hold and lockout messages
•Diagnosticmenudisplays
thelast10alarmmessages
and the boiler return
temperature alarm history
Modulation Rate and
On/Off Modes
•Controlstheboiler
modulation and on/ off
output based on the supply water temperature and an
operator adjusted setpoint
•Canrespondtoremotesystemwater,outsideair
temperatures,DomesticHotWaterPriority(DHWP)or
Energy Management Systems (EMS)
Outdoor Air Temperature Reset
•Savesfuelbyreducingthesupplytemperatureofa
heating boiler as the outside air temperature increases
Warm Weather Shutdown (WWSD)
•Preventstheboiler,boilerpumpand/orthesystem
pump from starting during warm weather
Domestic Hot Water Priority (DHWP)
•Continuoussupplyofhotwater,evenduringwarmer
months
System Control Outputs
•Fullyintegratedautomationofmixingvalves,boiler
pumps, system pumps, and standby system pumps
•Controlparametersareeldselectablethroughsimple
yes/no menu selections
The SBC Boiler
Control SystemÉ
Only available from
Burnham Commercial!
Advanced Adaptability
•Easilyintegratedintoexistingornewbuilding
management systems
•Simpliedconnectionsavailabletomostbuilding
management systems through Modbus¨or
standard0-10voltsignals
•UsessophisticatedPIDcontrollogicforcomplete
boiler system control
•Performscontrolfunctionsforbothsingleand
multiple boilers
Peer-To-Peer Network
•Includeslead-lagsequencerforuptoeight(8)fully
modulating boilers
•Capableofautorotation,outdoorresetand
peer-to-peer communication
•“Plugandplay”communicationbysimply
connectingaRJ11telephonelinebetweenboilers
•Providespreciseboilercoordinationbysequencing
boilers based on both remote system water
temperature and boiler modulation rate.
•Boilersaremodulatedin“unison”,allatthesame
firing rate to ensure even heat distribution
Fail-Safe System Operations
•Allowscontinuedboileroperationintheeventof
selected sensor failure or building management
system failure
SBC Exclusives
SBC
Integrated Boiler Control System
The Burnham Commercial SBC is a complete boiler monitoring and
automation system. Available as an option, this exclusive feature
was developed by Burnham Commercial engineers and is designed
specifically for use on Burnham Commercial boilers.
 Designedtomaximizesystemefciencyandminimizeenergyusage
Easily connected to building management systems
 Provencontrolplatform
 Fail-safedesigninsuresboileroperation
POWER LOCKOUT
MENU ENTER
SBC
™

5
V9 Series Dimensions
s Not supplied as standard equipment.
FRONT VIEW
(WATER)
s Not supplied as standard equipment.
All dimensions in inches
* Burnercontrolpanelcongurationmaychangethisdimension.OnJRburner,add10”foroptionalpanel.
**Doesnotincludeburnermountingplate(shippedseperately).Add55lbs.for4”standardburnermountingplate.Add85lbs.for8”extendedburnermountingplate
BOILER
MODEL
# OF
SECTIONS 'A' 'B'
# OF
STEAM
RISERS 'C' 'D'
MAX.
HEATERS
'E'
FLUE
OUTLET
DIA. 'F'
BURNER MOUNTING PLATE/ BURNER DIMENSION* APPROX.
ASSEMB.
SECTION
WEIGHT
LBS.
APPROX.
K.D. BLR/
SHIP
WEIGHT
LBS. **
BECKETT CARLIN POWERFLAME WEBSTER
'CF'
'G'/'H'
'CG'
'G'/'H' 'G'/'H'
'JR.'
'G'/'H'
'C'
'G'/'H'
'JB'
'G'/'H'
V903A 3 18-1/4 12 1 Ñ 9-1/8 1 7 8 / 9-3/4 8/20-7/8 8 / 23-1/4 8/20-1/8 Ñ Ñ 908 1278
V904A 4 24-1/4 18 1 Ñ 12-1/8 1 7 8 / 11-3/4 8 / 21-5/8 8 / 23-1/4 8/20-1/8 8/30 Ñ 1194 1590
V905A 530-1/4 24 1 Ñ 15-1/8 1 8 8 / 11-3/4 8 / 21-5/8 4 / 27-3/8 8/20-1/8 8/30 4 / 25 1480 1902
V906A 6 36-1/4 30 1 Ñ 18-1/8 2 8 4/20-5/8 4 / 21-5/8 4 / 27-3/8 4/20-1/8 4/30 4 / 25 1766 2218
V907A 7 42-1/4 36 2 Ñ 21-1/8 2 8 4/20-5/8 4 / 28-5/8 4 / 27-3/8 4 / 23-5/8 4/30 4 / 25 2052 2534
V908A 8 48-1/4 42 2 Ñ 24-1/8 2 10 4/20-5/8 4 / 28-5/8 4 / 27-3/8 4 / 23-5/8 4 / 35 4 / 25 2338 2846
V909A 9 54-1/4 48 2 Ñ 27-1/8 3 10 4 / 21-1/8 4 / 29-1/8 4 / 29-7/8 4 / 23-5/8 4 / 35 4 / 25 2624 3227
V910A 10 60-1/4 54 2 Ñ 30-1/8 310 4 / 21-1/8 4 / 29-1/8 4 / 29-7/8 Ñ 4 / 35 4 / 25 2910 3559
V911A 11 66-1/4 60 2 Ñ 33-1/8 3 12 4 / 22-5/8 4 / 29-1/8 4 / 29-7/8 Ñ 4 / 35 4 / 25 3196 3870
V912A 12 72-1/4 66 3 30 36-1/8 4 12 4 / 22-5/8 4 / 29-1/2 4 / 29-7/8 Ñ 4 / 35 4 / 25 3482 4197

6
NOTES:
1. Allpipingisschedule40.
2. Pipesizeslistedarebasedona20°For40°Fdifferential
(temperature drop). Select one to match application.
Consult factory if boilers are used in low temperature
applications or blending/mixing devices.
3. Whenspeciedreturnpipingsizeislessthan3”,install
 3”X12”nippleandappropriatesizebellreducerdirectly
into boiler return tapping as shown.
4. Drainvalve—ballvalvepreferable,gatevalveacceptable
alternative (supplied by others).
-MinimumvalvesizeperASMEcodeis3/4”NPT
5. Formultiplewaterboilerpiping,consultfactory.
WATER BOILER PIPING
To be used when system return water is not lessthan135°Fforprolongedperiodsoftimeandsystemowdoes not impact flow through the boiler
MODEL
SUPPLY PIPING SIZE
(IN.) (1)
RETURN PIPING SIZE (IN.)
RETURN (2) RETURN
HEADER (2A)
RETURN BRANCH
(QTY.) SIZE (2B)
20¡F D ROP 40¡F D ROP
20¡F
DROP
40¡F
DROP 20¡F D ROP
20¡F
DROP
V903A
V904A
V905A
V906A
V907A
V908A
V909A
V910A
V911A
V912A
2
2
2
2-1/2
2-1/2
2-1/2
3
3
3
4
1-1/2
1-1/2
1-1/2
1-1/2
2
2
2
2-1/2
2-1/2
2-1/2
2
2
2
2-1/2
2-1/2
2-1/2
3
3
3
4
1-1/2
1-1/2
1-1/2
1-1/2
2
2
2
2-1/2
2-1/2
2-1/2
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
3
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
(2) 3
STEAM BOILER PIPING
NOTES:
1. Allpipingisschedule40.
2. To prevent condensate from being trapped in header, do not reduce
equalizer elbow at header connection.
3. Drain/blowoffvalve—ballvalvepreferable,gatevalveacceptable
alternative (supplied by others).
–MinimumvalvesizeperASMEcodeis3/4”NPT903A/905A;
  1”NPT906A/910A;1-1/4”NPT911A/912A.
Ð Increasing the valve size will improve the blowdown operation.
Ð In all cases, piping connection blowoff valve to boiler should be
full size to the point of discharge.
4. Forpumpedreturnsystems,seeV9Ainstallationmanual.
5. Formultiplesteamboilerpiping,consultfactory.
MODEL
PIPING SIZE (IN INCHES)
RISER SPACING
(INCHES)
RISER
(Qty.) SIZE (1)
HEADER &
SUPPLY (2)
RETURN
(3)
EQUALIZER
(4) 'A' 'B'
V903A
V904A
V905A
V906A
V907A
V908A
V909A
V910A
V911A
V912A
(1) 3
(1) 4
(1) 4
(1) 4
(2) 4
(2) 4
(2) 4
(2) 4
(2) 4
(3) 4
3
4
4
4
6
6
6
6
6
6
1-1/2
2
2
2-1/2
2-1/2
2-1/2
2-1/2
3
3
3
2
2
2
2-1/2
2-1/2
2-1/2
2-1/2
3
3
3
Ñ
Ñ
Ñ
Ñ
36
42
48
54
60
30
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
36
V9 Series Piping Recommendations
Water and Steam

7
V9 Series Burner Schedule
OIL BURNERS
Standard Burner Motor Voltage:
Beckett–CF500,CF800,CF1400,andCF2300Aare120/60/1.CF2500Ais240/60/1.
Carlin–301CRDand702CRDare120/60/1.801CRDis240/60/1.
Power Flame–C1-OSis120/60/1.C2-OASandC2-OBare240/60/1.
Webster–JB1O-02,JB1O-03,andJB1O-05are120/60/1.JB1O-07is240/60/1.
GAS BURNERS*
Standard Motor Voltage:
Beckett–V903throughV911120/60/1,V912240/60/1
Power Flame C Series –C1-G-10,C1-G-12,C2-G-15are120/60/1.C2-G-20AandC2-G-20Bare240/60/1.
Power Flame JR Series–Allburnersare120/60/1.
Webster–JB1G-02,JB1G-03andJB1G-05are120/60/1.JB1G-07is240/60/1.
GAS/OIL BURNERS
Standard Burner Motor:
Power Flame–C1-GO-10andC1-GO-12are120/60/1.C2-GO-15,C2-GO-20AandC2-GO-20Bare240/60/1.
Webster–JB1C-02,JB1C-03,andJB1C-05are120/60/1.JB1C-07andJB1C-10are240/60/1.
BOILER
MODEL
BECKETT CARLIN POWER FLAME WEBSTER
BURNER
MODEL H.P.
BURNER
MODEL H.P.
BURNER
MODEL H.P.
BURNER
MODEL H.P.
V903A
V904A
V905A
V906A
V907A
V908A
V909A
V910A
V911A
V912A
CF500
CF800
CF800
CF1400
CF1400
CF1400
CF2300A
CF2300A
CF2500A
CF2500A
1/3
1/3
1/3
1/2
1/2
1/2
3/4
3/4
2
2
301CRD
301CRD
301CRD
702CRD
702CRD
702CRD
801CRD
801CRD
801CRD
801CRD-B
1/4
1/4
1/4
1/2
1/2
1/2
3/4
3/4
3/4
1-1/2
Ñ
C1-OS
C1-OS
C1-OS
C1-OS
C2-OAS
C2-OAS
C2-OAS
C2-OB
C2-OB
Ñ
1/3
1/3
1/2
1/2
3/4
3/4
3/4
1-1/2
1-1/2
Ñ
Ñ
JB1O-02
JB1O-03
JB1O-03
JB1O-03
JB1O-05
JB1O-05
JB1O-07
JB1O-07
Ñ
Ñ
1/4
1/3
1/3
1/3
1/2
1/2
3/4
3/4
BOILER
MODEL
BECKETT
POWER FLAME*
C SERIES
POWER FLAME
JR SERIES WEBSTER
BURNER
MODEL H.P.
MIN. GAS
PRESSURE
INCHES
BURNER
MODEL H.P.
BURNER
MODEL H.P.
MIN. GAS
PRESSURE
INCHES
BURNER
MODEL
MIN. GAS
PRESSURE
INCHES
V903A
V904A
V905A
V906A
V907A
V908A
V909A
V910A
V911A
V912A
CG10-1S
CG10-4S
CG10-5S
CG10-6S
CG15-3S
CG15-4S
CG25-2S
CG25-3S
CG25-4S
CG50-2S
1/3
1/3
1/3
1/3
1/2
1/2
3/4
3/4
3/4
2
3.3
3.7
4.7
5.5
5.4
6.2
4.7
5.0
4.9
3.9
Ñ
C1-G-10
C1-G-10
C1-G-12
C1-G-12
C2-G-15
C2-G-20A
C2-G-20A
C2-G-20B
C2-G-20B
Ñ
1/3
1/3
1/2
1/2
1/2
3/4
3/4
1
1
JR15A-10
JR30A-10
JR30A-12
JR30A-12
JR50A-15
JR50A-15
JR50A-15
Ñ
Ñ
Ñ
1/4
1/3
1/3
1/3
1/3
1/3
1/3
Ñ
Ñ
Ñ
4.0
4.2
5.9
4.3
5.4
4.4
5.0
Ñ
Ñ
Ñ
Ñ
JB1G-02
JB1G-02
JB1G-02
JB1G-02
JB1G-03
JB1G-05
JB1G-05
JB1G-07
JB1G-07
Ñ
5.0
8.0
5.0
6.0
8.0
6.0
6.0
7.0
9.0
BOILER
MODEL
POWER FLAME - C SERIES WEBSTER**
BURNER
MODEL H.P.
INLET GAS
CONNECTION
INCHES
MIN. GAS
PRESSURE
INCHES
BURNER
MODEL H.P.
INLET GAS
CONNECTION
INCHES
V904A
V905A
V906A
V907A
V908A
V909A
V910A
V911A
V912A
C1-GO-10
C1-GO-10
C1-GO-12
C1-GO-12
C2-GO-15
C2-GO-20A
C2-GO-20A
C2-GO-20B
C2-GO-20B
1/3
1/3
1/2
1/2
3/4
1
1
1-1/2
1-1/2
1
1
1
1
1
1-1/4
1-1/4
1-1/4
1-1/2
4.4
4.4
4.8
5.2
6.4
4.9
5.2
5.4
5.0
Ñ
JB1C-02
JB1C-03
JB1C-03
JB1C-05
JB1C-05
JB1C-05
JB1C-07
JB1C-10
Ñ
1/4
1/3
1/3
1/2
1/2
1/2
3/4
1
Ñ
1-1/4
1-1/4
1-1/2
1-1/2
1-1/2
1-1/2
2
2
V9 Series Burners
Optional Motor Voltage:
Mostmodelshave208-240or480volts/3phaseavailable
at additional cost as an option. Consult your Burnham
Commercial sales representative.
Optional Burner Motor Voltage:
Mostmodelshave208-240or480volts/3phase
available at additional cost as an option. Consult your
Burnham Commercial sales representative.
*ForgasconnectionsizeonGordon-Piatt,Websterand
 PowerFlameCburnersandminimumgaspressure
for C burner see gas/oil burner chart.
Optional Burner Motor Voltage:
Mostmodelshave208-240or480volts/
3phase available at additional cost as an
option. Consult your Burnham Commercial
sales representative.
** Forminimumgaspressure
requirements, see gas burner chart.
OIL BURNERS

V9 Series Ratings
& Equipment Listing
8
BurnhamCommercial-Lancaster,PA

www.burnhamcommercial.com
PL81401291000-10/10-4Ms
1. Sufx“S”indicatessteamboiler,“W”indicateswaterboiler.Sufx“G”indicatesgas-red,“O”indicatesoilredand“GO”indicatescombination
gas/oil fired.
2. Boilerratingsarebasedon12.5%CO2onoil;9.7%CO2ongas,and.10in.watercolumnpressureatboilerueoutlet.
3. I=B=Rnetratingsshownarebasedonpipingandpickupallowanceswhichvaryfrom1.333to1.289forsteamand1.15forwater.Consultmanufacturerfor
installations having unusual piping and pick up requirements, such as intermittent system operation, extensive piping systems, etc.
4. TheI=B=RburnercapacityinGPHisbasedonoilhavingaheatvalueof140,000BTUpergallon.
Ratingsshownaboveapplytoaltitudesupto1000feetonoiland2000feetongas.Foraltitudesabovethoseindicated,theratingsshouldbereducedattherate
of4%foreach1000feetaboveabovesealevel.
NOTE:  Maximumallowableworkingpressure(MAWP):
  Steam:15PSI
  Water–USA:80PSI(standardreliefvalveprovidedis50PSI)(30PSIand80PSIreliefvalveoptional)
  Water–Canada:45PSI(standardreliefvalveprovidedis45PSI)(30PSIreliefvalveoptional)
STANDARD EQUIPMENT
ALL BOILERS: Sections unassembled, flush insulated jacket, burner mounting plate, burner adapter plate, rear flue outlet damper (top outlet optional), flue
canopy,rearobservationportcover,targetwall(V-903A),andmiscellaneousplugs,bushingandttings,L4006B(lowreholdaquastat).
STEAM TRIM:15PSIsafetyvalve,L404FApressuretrol,gaugeglassassembly,steamgauge
WATER TRIM:50PSIsafetyreliefvalve,L4006Ahighlimit,pressure/temperaturegauge
OIL BOILERS:Flangemountedameretentionoilburnerfurnishedwith2stagefuelunit,primarycontrolanddualoilvalves
GAS BOILERS:FlangemountedgasburnerwithstandardcontrolsmeetingthelatestULrequirements,dualgasvalves,gas-electricignitionwithprovengaspilot,
amerodonJRburner,ultravioletamedetectoronothers,electronicprogrammingcontrolsandcomponentsarefactorywiredinaburnermountedcontrolpanel.
GAS/OIL BURNERS:Flangemountedcombinationgas/oilburnerwithstandardcontrolsmeetinglatestULrequirements,manuallyoperatedfueltransferswitchfor
dual fuel changeover, dual gas valves and oil valves, electric ignition with proven gas pilot on both fuels (direct spark ignition of oil is optional), ultra-violet flame
detector, electronic programming controls and components are factory wired in a burner mounted control panel.
OPTIONAL EQUIPMENT
Assembled sections; completely packaged (includes manual reset
high limit and manual reset low water cutoff); packaged and fire-
tested; top outlet flue damper; tankless heaters; side inspection
tappingswithbrassplugs;30PSIand80PSIsafetyreliefvalves
(water); combustion and hydronic controls to meet special
applicationsincludingF.M.,I.R.I.,andASMECSD-1.
BOILER
MODEL (1) BOILER H.P.
GROSS
OUTPUT
MBH (2)
NET I=B=R RATINGS (2) (3) BURNER INPUT NET
FIREBOX
VOLUME
(CU. FT)
PRESSURE
IN FIREBOX
(IN. WTR.
COLUMN)
I=B=R VENT
DIA. (IN.)
STEAM WATER
MBH
OIL
(GPH) (4)
GAS
(MBH)
MBH SQ. FT.
V-903A
V-904A
V-905A
V-906A
V-907A
V-908A
V-909A
V-910A
V-911A
V-912A
10.3
14.4
19.3
24.1
28.6
33.2
40.1
45.6
51.2
56.8
347
483
646
808
959
1110
1342
1528
1714
1900
260
362
485
606
719
833
1014
1168
1323
1474
1083
1508
2021
2525
2996
3471
4225
4867
5513
6142
302
420
562
703
834
965
1167
1329
1490
1652
3.1
4.2
5.6
7.0
8.3
9.6
11.6
13.2
14.8
16.4
447
606
808
1010
1198
1386
1674
1905
2136
2367
3.2
4.8
6.4
7.9
9.5
11.0
12.6
14.2
15.7
17.3
.33
.38
.31
.38
.36
.35
.35
.40
.45
.49
7
7
8
8
8
10
10
10
12
12
BOILER
MODEL
NUMBER OF V9-2 TANKLESS*
HEATERS INSTALLED
1234
V-903A 6.75 Ñ Ñ Ñ
V-904A 7.5 Ñ Ñ Ñ
V-905A 7.5 Ñ Ñ Ñ
V-906A 7.5 15 Ñ Ñ
V-907A 7.5 15 Ñ Ñ
V-908A 7.5 15 Ñ Ñ
V-909A 7.5 15 22.5 Ñ
V-910A 7.5 15 22.5 Ñ
V-911A 7.5 15 22.5 Ñ
V-912A 7.5 15 22.5 30.0
TANKLESS
HEATER
RATINGS*
(Water and
Steam)
* Ratings are given in
gallons per minute
continuous draw of
water heated from
40°Fto140°Fwith
200°Fboilerwater.
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