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T
231/4
ASME
RELIEF
VENT
DAMPER
VALVE
_ I ['--
-- -- --]-._._
I rV/NPT
I
\\
CH"
L____
d
I__
DRAIN VALVE
LEFT SIDE
TEMR/PRESS.GAUGE
!/
,_
A
_,
I7," SUPP_
_ -I
/
iL
ROLLOLIT
GAS
1
SWITCH
VALVE
FRONT
AQUASTAT
1 '/4" RETURN
IN]_ PILOT CONTROL
RIGHT SIDE
®
GAS-FIRED HOT WATER BOILERS
BASIC BOILER UNIT N(_
NATURAL GAS
NQ OF
AGA
HEATING
Electronic
Ignition
With
Vent Damper
229.960021
229.960031
229960041
229.960051
229.960061
229,960071
229.960081
229.960091
Continuous
Pilot
With
Vent Damper
229.960121
229.960131
229.960141
229.960151
229.960161
229,960171
229.960181
229.960191
SECTIONS
2
3
4
5
6
7
8
9
INPUT
*MBH
37.5
7O
105
140
175
210
245
280
CAPACITY
"MBH
3O
57
85
113
142
170
198
226
I=B=R
RATING
FLUE
*MBN
DIAMETER
26
4_
50
5
74
6
98
6
123
7
148
7
172
7
197
7
DIMENSIONS
NET
(Inches)
,,A-
WIDTH
8
11%
14'/2
173/4
21
2474
271/2
303_
* MBH - 1,000 Stuh
Btuh - British Thermal Unit Per Hour
t For aJtitudes above 2,000 ft ratings should be reduced
at the rate of 4% for each 1,000 ft above sea level
Heating Capacity is based on DOE
{Debarirnent
of Energy) test procedure
**Add 5½" to height for Vent Damper
:_2 Section boilers are equipped
with a 3" diameter flue collar on the draft diverter, and use a furnished
3'x4" increaser
fitting to install the furnished
4" vent damper
TheRatings marked "Net I=B=RRatings"indicate theamount o f equivalent
direct radiationeachboiler will take careof under normalconditionsand
thermostaticcontrol. The Net I=B=R Ratingsshown are based on an
allowance of 1.15 in accordance with the factors shownon the I=B=R
Standard as published by TheHydronics Institute.
Selection of boiler size shouldbe basedupon "Net I=B=R Rating"being
equalto or greaterthanthecalculated heatloss of thebuilding.
The manufacturer should be consulted before selectinga boiler for
installations h avingunusual p ipingand pickuprequirements.
Theseboilers musl stand on a non-combustible floor• If installedon a
combustible floor, useCombustible Floor BaseNumber42135-1 or 146-
14-031 (2-6 section boilers) or 42135-2 or 146-14-032 (7-9 section
boilers)•
These Gas-Fired WaterBoilersare low pressure, sectional c astiron boilers
Design Cerritifedby CSA(Canadian Standards Association) f or use with
Gas. T hey areconstructed andhydrostatically testedfora maximum working
pressureof 50 psi (poundsper squareinch)in accordance with A.SM.E.
(American Societyof Mechanical E ngineers) B oiler and Pressure Vessel
CodeSectionIVStandards for castiron heatingboilers.
BOILERS FOR USE AT HIGH ALTITUDES
This boiler is factoryequipped for use at altitudesof 0-2,000 feet above
sea level. For use at altitudesabove 2,000 feet abovesea level, the
inputratings are reducedby a change in mainburnerorificesize.
Foraltitudesabove 2,000 feet abovesea level, input ratingsshouldbe
reducedat the rate of 4% for each1,000 feet abovesea level. Consult
the NationalFuelGasCode(NFPA54/ANS! Z223.1-1atest edition),or the
manufacturer for correct orifice sizing information. H igh altitudeorifices
are available from theboilermanufacturer.
3
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