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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
3ES1 00
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 BTU pet 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
Selection of boilersizeshouldbe basedupon"Net1=8=RRatingbeing
equalto or greaterthanthe sq.ft. of radiation alreadyinstalled in the
building.
TheNet I=B=R Ratingsshownare basedon an allowance of 1.333in
accordance w iththefactorsshownon the 1=B=RStandard as publishedby
TheHydronics Institute.
Theseboilersmusthavea non-combustible baseif installed on a combustible
floor.Two-inchcladlitepad maybe used.Theseboilersare lowpressure
sectional c astironboilersconstructed a ndhydrostatically testedfora maximum
working pressure of 15psiin accordance w ith A.SME. (American Societyof
Mechanical E ngineers) S ectionIVStandards for castironheatingboilers.They
are capacity ratedin accordance withthecodeof the1=B=R(Hydronics
Institute).
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