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4 _ _TING5
& CAPACITI£5
Table % RATINGS
& CAPACITIES
OIL-FIRED
HOT WATER BOILERS
=
J
I
Net
I
Min relief
Max
J Chimney
Chimney
Heat ng
MAvvv
"
Liner
Flue
Number
F iring
In ut ' '
I
.
AHRI
. .
AFUE
Valve
Water
Liner Size
of
Rate
:MPh .
_apacIzy
vvazer
o
,
,
Size
Size
Sections
[GPH]
[
J
rMbh]
Rating
r_s _
[ Yo]
Capacty
Temp
Round
[Square
, [Inches]
!
!
L
J
. [Mbh]
.
L_ J
.
i.
[Mbh]
.
[°F]
. [Inches]
Inches]
4
4
4
5
5
5
6
6
6
7
7
7
0.75
105
0.95
133
i.i0
154
1.00
140
1.15
161
1.35
189
1,30
182
1.45
203
1,65
231
1,65
231
1,80
252
1,90
266
91
114
132
122
139
161
159
176
198
201
217
228
79
99
115
106
121
140
138
153
172
175
189
198
65
86.0
91
250
65
85.0
115
250
65
84.0
132
250
65
86.5
122
250
65
85,0
139
250
65
84,0
161
250
65
86,5
159
250
65
85.0
176
250
65
84,0
198
250
65
86,0
201
250
65
85.0
217
250
65
84.0
227
250
6
6
6
6
6
7
6
7
7
7
7
8
6 3/4
5
6 3/4
5
6 3/4
5
6 3/4
5
6 3/4
5
6 3/4
5
6 3/4
5
6 3/4
5
6 3/4
5
6 3/4
6
6 3/4
6
6 3/4
6
GPH = U.5. Gallons per Hour
Mbh = i 000 Btu (British thermal units) per hour.
psi = Pounds per square inch
*MAWP = Maximum allowable working pressure.
This low pressure oil fired hot water boiler is constructed
and
hydrostatically
tested for maximum
working pressure of 65 psi in accordance with the latest revision of the A.5. M. E.
(American 5ociety of Mechanical Engineers) Boiler and Pressure Vessel Code Section IV Standards for heating boilers.
AFUE= Annual Fuel Utilization Efficiency
Heating Capacity and AFUE based on i3.i%
CO2 (i3.5%
C02at 0.95 GPH and i.i0
GPH), -0.02" w.c. draft in breech, and
# i smoke or less. Testing is done in accordance with U.S. DOE (Department
of Energy) test procedure.
Heating Capacity indicates amount of heat available after subtracting
losses up the stack. Remaining heat is available
to heat water. Smafl portion is heat from jacket and surfaces of boiler and this heat stays in structure.
Net AHRI rating
represents portion of remaining
heat appfied to heat radiation or terminal units (i. e. finned tube baseboard, cast iron
radiators, radiant floor, etc.). Difference between Heating Capacity and Net AHRI Rating, cafled piping and pickup
aflowance, establishes reserve for heating volume of water in system and offsetting
heat losses from system piping. Net
AHRI ratings shown are based on piping and pickup factor of i5% in accordance with AHRI Standard as published by
Hydronics Institute.
Net AHRI rating of boiler selected should be greater than or equal to calculated peak heating load (heat loss) for building
or area(s) served by boiler and associated hot water heating systems. Consult manufacturer
before selecting boiler for
installations
having unusual piping and pickup requirements.
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