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I/2" NPT
TANKLESS
HEATER
, o i
F , t , t i
, t , * ,
LEFT SIDE
3/4 _ NPT
_LOW UMIT
CONTROL ON
COIL PLATE
I/2" NPT
PRESSURETROL
PRESSURE GAUGE
COMBINATION
\
1-1/2" NPT
RETURN
i
FRONT
T
27"
WATER
IJNE
_l
2-I/2" NPT
SUPPLY
iq°p
i-i/2" NPT
i SKIM TAPPING
i
'L
,-V2 ° NPTi
RETURN
REAR
5/4" ASNE
POP SAFETY
VALVE
35
EMPIRE OIL-FIRED STEAM BOILER RATINGS
BOILER MODEL NO.
With Without
Tankless Tankless
Coil Cotl
3ESt O0C 3ES100 3
3ES1.25C 3ES1,25 3
3ES1.35C 3ES1.35 3
4ES1,50C 4ES1,50 4
4ES1.75C 4ES1 75 4
4ES1.85C 4ES1.85 4
* MBH = 1,000 BTUpet hour
No.
9ec.
Input
*MBH
140
175
189
2!0
245
259
Nesting
Capacity
*MBH
118
145
156
177
204
215
Net
I=B-R
Rating
"MBH
89
109
117
133
153
161
Not I-S-R
Rating
Sq. Ft,
Radiation
371
454
488
554
638
671
*Tonldelm
Cell
Ratings
GPM*
2.75
3,10
3.25
3.50
3.85
4,00
Typl©al
Chimney
Size and
Height
8" x 8'x 15'
8" x 8' x 15'
8" x 8' x 15'
8' x 8' x 15'
8" x 8" x 15'
8" x 8' x 20'
CIMF31SIONS- INCHES
A B C
16% 7 9
16½ 7 9
16% 7 9
20% 8 11
20% 8 11
20% 8 11
BTUH = British Thermal Unit Per Hour
GPH _ Gallons per Hour Oil at 140,000 BTU per Gallon
** Heating Capacity is based on a 13% CO2 with a -,02' w.c, draft over fire, and a #1 smoke or less. The testing on the boilers
was done in accordance with lhe DOE. (Department of Energy) test procedure
NewYorkCityMEANumber134-98-E
Selectionofboilersizeshouldbe basedupon"Net1=8=RRatingbeing
equaltoorgreaterthanthesq.ft.ofradiationalreadyinstalledinthe
building.
TheNetI=B=RRatingsshownarebasedonanallowanceof1.333in
accordancewiththefactorsshownonthe1=B=RStandardaspublishedby
TheHydronicsInstitute.
Theseboilersmusthavea non-combustiblebaseifinstalledon acombustible
floor.Two-inchcladlitepadmaybeused.Theseboilersarelowpressure
sectionalcastironboilersconstructedandhydrostaticallytestedfora maximum
workingpressureof 15psiin accordancewithA.SME. (AmericanSocietyof
MechanicalEngineers)SectionIVStandardsforcastironheatingboilers.They
arecapacityratedinaccordancewiththecodeofthe1=B=R(Hydronics
Institute).
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