Document Jzzz4gO47v3M8e7k483ozowr
'''AMERICAN STANDARD
KEWANEE SQUAREHEAT G--A.S
BOILER?.
ies
28529
bulletin 96-16-96G
St'f/cf x '
In:
The dependable performance, durability and efficiency of the Square-Heat boiler design has been proved by thousands of installations. Now an improved Kewanee gas package incorporating all the well known features of compact firebox boiler design ... available for natural or induced draft operation.
' THREE-PASS CONSTRUCTION The large firebox with arched upright crown sheet provides the first pass and assures ample volume for complete and quiet combustion and an unusually large proportion of direct or primary heating surface. The second pass is from rear to front in the direct fire tubes. The third pass is from front to rear in the return fire tubes. This longer gas travel--with no refractory baffles to burn out or short circuit gases--gives the Square-Heat Gas Boiler exceptionally high operating efficiency.
TJ3ES All tubes in Square-Heat Gas Boilers are 3' O.D., secured to the tube sheets by roller expander--no tubes are welded to the tube sheets. Spinner blades in return tubes swirl the hot gases against the tube surfaces for longer gas travel and maximum heat transfer.
C3MPACV I3ESIGN The Kewanee three-pass design requires only minimum boiler room dimen sions for installation and accessability. Low height teamed with a rear smoke outlet makes it a perfect application for compact boiler rooms.
An unbroken disengaging area and ample water content assures steady water line and an adequate reserve of dry steam at all times.
Heavy gauge steel jacket with attractive smooth enamel finish and glass or
mineral fiber insulation . . . reduces heat loss and is quickly and easily in stalled.
' WAVER KEATING COiLS Standard Kewanee "Kl" (instantaneous) and "KT" rtanki coils can be provided for all units. Coil opening at front of boiler eliminates any inter ference with controls, wiring, or breeching.
EaS'' mSS*w3_'.' aNC i <STaU.aT.Cv* The Square-Heat Type R Gas Boiler is shipped ready for field assembly and installation. Simply set the boiler shell on the gas burner iwhich serves as the boiler base), slip on the insulated jacket--and the boiler unit is ready for trim, controls and piping. No sections to handle ... no tie rods, push nipples, or refractory to install. Assembly and installation costs are reduced to an absolute minimum.
' VERSATLE Available for all types of commercial gases--natural, manufactured, or pro pane. AG units are designed for installation with natural draft stacks. IG units are designed with an induced draft fan for installation with stub vents. Flexibility of installation with various stack or draft conditions makes the Square-Heat Gas Boiler ideal for both new construction and modernization of existing buildings. ASME Boiler Construction Code requirements have been followed to the last detail. But more than that, the Square-Heat Gas Boiler gives performance well above and beyond any boiler code requirements.
Flange quality plate . . . gas-tight construction throughout . . . easy access to flues for cleaning . . . heavy cast iron front fire door for access to gas burner ... integral in design and construction... thoroughly tested.
28530
Copyright 1961 by AMERICAN STANDARD Inc
Since product improvement is a continuing effort at American-Standard, the right is reserved to make reasonable changes of any kind without notice
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BOILER NUMBER (--AG or -IG Suffix)
3R1 3R2 3R3 3R4 3R5 3R6 3R7 3R8 3R9 3R10 3R11 3R12
P ring-- MBh
324 396 468 540 648 792 936 1080 1260 1440 1620 1800
41 :ri %Zij m
--horsepower...........................................
10 12 14 16 19 24 28 32 38 43 48 54
--steam per hour 212 F....................
lbs 334 408 482 557 668 816 965 1113 1299 1484 1670 1855
--steam (gross). .
sq ft 1350 1650 1950 2250 2700 3300 3900 4500 5250 6000 6750 7500
17\ri1
--steam (MCA net).................................. sq ft Input--gas........................................................ MBh
1013 405
1238 495
1463 585
1688 675
2026 810
2476 990
2926 1170
3376 1350
3941 1575
4559 1800
5188 2025
5809 2250
Af1
Heating surface--total................................... -- primary..............................
sq ft sq ft
53 20.5
65 22.8
77 25.2
88 27.5
106 33.0
129 36.6
153 40.4
177 44.5
206 49.5
236 54.1
265 58.4
294 62.6
y*I 1 urnace volume--net.................................... cu ft 8.8 10.4 12.0 13.5 17.2 20.1 23.0 26.3 32.6 37.0 41.1 45.3
ms S ilety valve capacity--steam per hour.
. lbs 324 396 468 540" ' 648 792 936 1080 1260 1440 1620 1800
.- Approximate dry weight--(AG) ..................
lbs : 1700 1875 2050 2225 2600 2925 3200 3550 3975 4475 4625 5000
[:'. m
(IG) lbs 1 1800 1975 2150 2325 2700 3025 3300 3850 4275 4775 4925 5300
dlmezisions-inches
i BOILER NUMBER (--AG or -IG Suffix)
1 j A --Boiler length
..............................
Ai --Overall length--(AG)'.............. fjk --(IG) .
A2 --Overall length including tube removal -(AG)*..........................................
-OG).................................................
B --Boiler width.
C --Overall height.........................
Ci --Shell height..................................
D --Boiler center line to greatest width m E --Rear smokebox depth
--rear smoke outlet (AG) .
m
--top smoke outlet (AG) (oval) --topsmoke outlet (IG)
P F --Front smokebox depth ..
.1
m w %g
ft
!
J --Boiler shell width--inside .
..
Ki --Firebox--length. K2 --width
K3 --height.....................
L --Smoke outlet size--(AG) -(IG) ..
N --Smoke outlet height--(AG) ..............
--(AG) top smoke outJet
-(IG)
P --Supply size.............................................................
Q --Supply location.....................................................
m R --Supply height
S --Return location . . n -- Return size......
.
-Safety valve location
-Normal waterline
Y --Coil connection height
AA --Base width
BB--Base length
HH--Tube removal space Stack size (AG) one boiler--diameter
-- height
3R1 30% 46 % 62
70 85 371/2 68'/2
641/2
21'/2
8 121/2
231/2
8
28v*:' " 251/2 24 211/2 12 10 45 | 511/2 l 53
4 10 65 16 3
HmB
*L-'+
3R2 !
36i/2
52i/2 68
3R3
421/a
581/, 74
3R4 481/2
641/2
80
3R5 421/2 591/2 75
82 94 106 94 97 109 121 109
371/2 371/2 37/2 ; 42
681/2 i 69
69 ! 76%
641/2
641/2 " 641/2
7iy2
211/2 711/2 211/2 23%
mSmSSSSmSmk 3R6 3R7 3R8 1 3R9 3R10 ! 3R11 ! 3R12
50% 58 67 56% 64% 72 79%
67% 75
84
83 90% 106
75% 83% 91 97% 105% 113
98% 120%
143 -J
110 125
123 139 154 169
125 140 165 145 161 176 191
42 42 42 49 "49" ' " 49 "49
76%"" 76% ' IwT 85% 85% 85% " 85%
71% 71% 71%" 80%" "80% 80% 80%
23% 23% 23% 27 27 27 ' " "27
i*
888 121/2 121/2 121/2 23'/. 23% 231/2
888
28V2 28/2 [ 28>/
311/2 371/2 ! 431/2 24 24 1 24 21% 211/, I 211/2 12 12 1 12 10 10 10
45 "45 511/2 511/2 53 53
45 511/2 53
444
12 14 16
65 65 65
16 16 16
333
88 14% 14% 23% 23%
99
"32%" 32%
37% ~45 28 28 26 26
15 15 10 10
50 50 58% 58% 58 58
44
14 17
12 72 :
16% 16% | 4 __4____]|
889
14% 14% 16%
23% 30
31
9 9 10
32% ' 32 %j 39%"
53 " 62 28 28 26 26
51
35 31
15 15 18 10 14+ 14+
50 50 56% 58% 58% 66% 58 60% 67%
4 4 6"
19 22 16
72 72 "84% '
16% 16% 16% |
4___; 4
4!
9 16% 31
10
39%
59 35 31
18 14+
56% 66% 67%
6**
18
84%
16%
4
99 16% 16% 31 31
To" 10
39% 39%"
66% 74 35 35 31 31
18 " 18 14+ 14+
56% 56% 66% 66% 67% 67%
6*" "6" 20 24 vT
84% 84%
16% " 16% 44
54 ; 54
55 ; 56
31% I "31% 44 V) ' 50'A
43% 7 49%
12 - 12 420 i 420
2";/
i if top outlet used. See Dimension E.
28531
stan-darci
and. optional eqiaiiDm.en.t
s
i' 1
ah um^s
1 Three-Pass ASME Code Boiler 2 Gas Tight Insulated Front Smokebox 3 Gas Tight Rear Smokebox 4 Cast Iron Front Firedoor 5 3" Firetubes with Spinner Blades in Return Tubes 6 Wrap-around Insulated Steel Jacket 7 Flue Cleaner with Flandle 8 Washout Plug Socket Wrench 9 Operating Limit Control 10 Safety High Limit Control 11 Gas Burner Assembly including: I2V2" Boiler
Base; Gas Manifold; Orifices; Slotted Port Premix Type Cast Iron Burner Heads; Ad justable Secondary Air Inlet Louver; and Primary Air Inlet Dampers 12 Thermocouple Flame Safeguard with Constant Pilot including: Thermocouple; Pilot Safety Relay; Pilot Valve for 100% Safety Shutoff; and Pilot Burner with Shield and Mounting Bracket 13 Gas Control Group including: Automatic Dia phragm Gas Valve; Main Gas Pressure Regulator (Omit for propane gas); Manual Gas Cock; Pilot Cock with Tubing; and Pilot Gas Pressure Regulator 14 Standard Voltage--115 V, 60 cy., 1 ph. 15 Barometric Draft Regulator 16 Necessary Insulation and Compound for AirTight Seal between Boiler and Burner-Base Assembly 17 Boiler Shell; Insulated Jacket; Trim and Controls; and Burner-Base Assembly Shipped Ready for Field Installation
steam units
1 No. 767 Low Water Cut-Off 2 Safety Valve 3 Compound Steam and Vacuum Gauge 4 Water Gauge and Glass
llOt Vv S-LST L.1TX 11.S
1 No. 764 Low Water Cut-Off 2 Relief Valve 3 Combination Altitude Gauge and Thermometer
rrsitivrfi'. ciraf'L fei^i u vj j v.s
1 Horizontal Discharge (Rear) Vent for Natural Draft Stack Application1 2
1 Flue Gas Temperature Gauge 2 Pyrex Observation Port 3 Instantaneous or Tank-Type Hot Water Coils 4 Room Thermostat Control 5 Electronic Flame Safeguard with Gas-Electric
Ignition Assembly for Intermittent Pilot 6 Electronic Flame Safeguard with Gas-Electric
Ignition Assembly for Constant Pilot in cluding: Control Cabinet with Indicating Lights, Switches, Component Check Relay and Mounting Bracket 7 Automatic Motorized Gas Valve with Damper Arm and Linkage for Operation of Secondary Air Inlet Louver 8 Safety Solenoid Gas Valve in addition to Standard Automatic Valve 9 Gas Controls to Meet FM Requirements 10 Gas Controls to Meet Local or Utility Requirements 11 Gas Controls for Other Than Standard Inlet Pressure 12 Starting Service 13 One Year Service
1 Combination Low Water Cut-Off and Pump Control 2 Combination Low Water Cut-Off and Water Feeder 3 Second Low Water Cut-Off
1 Combination Low Water Cut-Off and Water Feeder
1 Vertical Discharge (Top) Vent for Natural Draft Stack Application
1 Induced Draft Fan including: 115 V, 60 cy., 1 ph. Constant Speed Motor with Adjustable Pitch Sheave; Boiler Mounting Brackets; and Vertical Discharge (Top) Vent for Stub Stack Application
2 Draft Safety Switch
1 Pre-Purge Relay 2 Pre-Purge and Post-Purge Relay
28532
Combustion noise is "whispering quiet" . . . The intense blue flame produced by the precision built cast iron burner heads is both efficient and quiet... Makes this boiler unit ideal for office and store buildings, schools, hospitals, apartments, and other medium size buildings where exceptionally quiet boiler operation is desired.
The Kewanee atmospheric premix gas burner is actually the boiler base .. . compact, easy to handle and install. Accurately machined deep slotted ports in the cast iron burner heads provide high capacity, prevent flash back, and insure smooth light-off from a single pilot.
The individually spaced cast fins on the burner heads permit a continuous flow of secondary air between and over each fin ... cooling and adding years of life to the burner heads. Secondary air surrounds both sides of the flame thoroughly mixing gas and air for rapid, quiet combustion ... producing a short flame height without excess air... maximum burner efficiency from a quiet hot blue flame.
Primary air supply and secondary air supply are separately controlled ... permits flame adjustment for all types of gases under varying draft and operating conditions.
Various control and safety combinations are available, all with 100% safety shut off...thermocouple pilot and safety relay with automatic diaphragm gas ,valve is standard. Electronic safety relay . . . electronic safety relay with automatic electric ignition ... motorized gas valve with linkage to operate secondary air inlet louvers... automatic safety gas valve in addition to standard operating gas valve. All these, plus other control options are available to meet specific job and local code requirements.
*
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IhbIwkwhwkBhBbB
1 | 1
.1 .............. __
Unit --AG
or --G
3R1
3R2
Input
Number of Burner
Heads i
MBh
Natural Gas
405 4 !
495 4
3R3 585
4
3R4 675
6
3R5 810
6
3R6 990
8
3R7 1170
8
3R8 1 1350 i
10
*
- s 'I4*:. -
3R9 1575
12
*y=vL
3R10
1800
15
3R11
2025
3R12 - 2250 .I
__1_5__
18 :
'I,'*
' ' * i
Dimensions Inches
Burner (Boile r Base)
JWidth Length
Height
j j
31`/2 : 32% 31% , 38%
' 12% 12%
1
Gas Controls
Natural Gas*
Required
Size 1
Inlet
Pressure
i" 1 6" w.c.
i" j 6" w.c.
31% 44% ; 12% 1`A" 6" w.c.
31% 35%
50% 12% 1 1!4" i 6" w.c. 44% ; 12% 1 l'A" j| c6,, w.c.
35% 52% I 12% | 1%" 35% 60% 12% 1%"
6" w.c. 6" w.c.
35% I 69
1 12% i 1%" ! 6" w.c.
43 58% 12% - 1%" 6" w.c.
43 66% 12% 2" 6" w.c.
43 74 12% 2" 6'' w.c.
43 j 81% 12% 2"
6" w.c.
IG Units Induced
Draft Fan Data**
Size HP 10 DI-1% 10 Dl-- Vs
lODI-%
10 Dl-- % 10 Dl -- %
10 Dl--%
10 DI-%
14 DL-%4 C
14 DL-'A C
14 DL-% C
14 DL- 'A C
14 D->/4 C
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The contractor shall furnish and install........ Model No.........
Square-Heat GasBoiler(s)for (natural) (manufactured)(propane)
gas. The unit.shall <be ofthree-pasfirebox design wi|harcbed upright crown sheet and two passes of fire tubes, and con-, structed in accordance with the ASME Code for (IS pounds* steam) (30 pounds water).
The boilerfs) shall contain not less than furnace vol ume and shaft havea gross outp
. MBh. Heat release shall not exceed cubic foot of furnace volume.
cubic feet of notress than
tu per
An insulated cast iron fire door shall ba provided for access to thegas burner heads A front flue access cover with refractory securely keyed in place and of a size permitting easy access to
all: fire tubes shall be mounted on a gas tight, insulated front smokebox. Gas tight rear smokebox shall be provided With a (rear) (top) outlet.
Boiler(s) shall be provided with a wrap-around Steel jacket with 1" mineral fiber insulation and smooth enamel finish.
All tubes shall be set with a roller expander at each end. No .welding af tubes to the tube sheets nor use of refractory baffling
to provide the second or thirdrpaiSs will bdbmQritted^ ^friner blades Shall be
NOTE: Strike out clauses in parenthesis which am not applicable.
Gas burner equipment shall ba an infe and shall include: atmosphe with accurately machined d* dampers for control of primary an necessary safely burner pilots; air regulators (omit for propane jh$IL; pilot and main burnar. V! y
Automatic type with linkage an additional automatic
Combustion safety... b6 by (erectibhrt fe constant pilot, lights, switches,
(SWr*--"
-draft stack .
inches in diameter and
feet in-*'
height) (with an induced (IG Series) draft fan with safety draft
switch with a
inch.diameter vent)
Electrical characteristics shall h
Mppl
... American-Standard offers all the major components for air handling, heating, and air conditioning? You can look to one company for your total requirements for systems of any size or degree of complexity... whether you need fan coil, induction or thru-the-wall terminal units, package units, multi-zone air conditioners, fans, centrifugal refrigerating machines, water chillers, boilers or roof ventilators. You'd be sur prised at the convenience. You talk to product specialists who speak your language. You have one source responsible lor quality and perform ance in.equipment designed and manufactured to work together.
.AMERICAN STANDARD
HEAT TRANSFER PRODUCTS DEPT
DETROIT. MICH. 48232
Bulletin 96-16-96G 5M 11-67 JM
CONTACT YOUR NEAREST KEWANEE SALES OFFICE
SALES OFFICES IN ALL PRINCIPAL CITIES
tn Canada: 1 201 Dupont St . Toronto 4. Ontano
For Export: 40 West 40th St. New York. N. Y. 10018
28534
litho m U.S.A