Foreword - A.O. Smith 400 Instruction Manual

TABLE 4: RECOVERY CAPACITIES
Input Rating
MODEL BTU/Hr. (kW)
GW - 1000 990,000 (290.1)
GW - 1300 1,300,000 (380.9)
GW - 1500 1,500,000 (439.5)
GW - 1850 1,850,000 (542.0)
GW - 2100 2,100,000 (615.3)
GW - 2500 2,490,000 (729.6)
TABLE 5: PUMPING PERFORMANCE GUIDE
20 Deg. F Rise
GPM PD-FT
MODEL Head
GB - 1000 83 5.1
GB - 1300 109 7.2
GB - 1500 126 10.1
GB - 1850 154 18.5
GB - 2100 n/a n/a
GB - 2500 n/a n/a
Note: GW models (GB optional) are equipped with pumps capable of handling 50 equivalent feet
(15.2 m) of normal pipe fittings.

FOREWORD

Detailed installation diagrams are in this manual. These diagrams
will provide the installer with a reference of materials needed and a
suggested method of piping. IT IS NECESSARY THAT ALL WATER
AND GAS PIPING, AND THE ELECTRICAL WIRING BE INSTALLED
AND CONNECTED AS SHOWN IN THE DIAGRAMS.
CHECK DIAGRAMS THOROUGHLY BEFORE STARTING
INSTALLATION TO AVOID POSSIBLE ERRORS AND MINIMIZE
TIME AND MATERIALS COST. SEE FIGURES 1 THROUGH 5 AND
TABLES 1, 2, AND 3.
This design complies with the current edition of ANSI Z21.13-CSA
4.9 for Gas-Fired Low-Pressure Steam and Hot Water Boilers.
Water 40°F 50°F
Flow (22.2°) (27.7°) (33.3°) (38.8°) (44.4°) (50°) (55.5°) (61.1°) (66.7°) (72.2°)
GPH 2520 2016
LPH 9526 7620
GPH 3309 2647
LPH 12508 10006
GPH 3818 3055
LPH 14432 11548
GPH 4709 3767
LPH 17800 14239 11865 10172
GPH 5345 4276
LPH 20204 16163 13472 11548 10104 8981 8082
GPH 6338 5071
LPH 23958 19168 15971 13691 11979 10648 9582
GB MODELS-FLOW, HEAD LOSS AND TEMPERATURE RISE
30 Deg. F Rise 40 Deg. F Rise
GPM PD-FT GPM
Head
55 2.7 41.6
72.8 4.2 54.6
84 6.3 63
103.6 10.1 77.7
117.6 14.5 88
139.4 18.5 104.6
TEMPERATURE RISE - DEGREES °F (°C)
60°F 70°F 80°F
1680 1440 1260
6350 5443 4763
2206 1891 1655
8339 7148 6256
2545 2182 1909
9620 8248 7216
3139 2691 2355
8902
3564 3055 2673
4225 3622 3169
Maximum Flow Rate
PD-FT GPM PD-FT
Head Head
1.5 154 12.2
3.2 154 14.5
4.3 154 16.3
6.4 154 18.5
8.3 154 21.3
11.6 154 23.2
MAKE SURE THE GAS ON WHICH THE BOILER WILL OPERATE
IS THE SAME AS THAT SPECIFIED ON THE BOILER RATING
PLATE.
The boiler installation must conform to these instructions and the
local code authority having jurisdiction. In the absence of local
codes, the installation must comply with the latest editions of
the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and the
National Electrical Code, NFPA 70 or CAN/CSA B149.1, and CSA
2 C22.1. The former is available from the Canadian Standards
Association, 8501 East Pleasant Valley Road, Cleveland, OH
44131, and both documents are available from the National Fire
Protection Association, 1 Batterymarch Park, Quincy, MA 02269.
4
90°F 100°F 110°F 120°F
1120 1008 916 840
4234 3810 3462 3175
1471 1324 1203 1103
5560 5005 4547 4169
1697 1527 1388 1273
6415 5772 5247 4812
2093 1884 1712 1570
7912 7122 6471 5935
2376 2138 1944 1782
7348 6736
2817 2535 2305 2113
8713 7987
Minimum Flow Rate
Deg. F GPM PD-FT
Rise Head
11 42 1.5
14 55 3.2
17 64 4.3
20 78 6.4
23 89 8.3
28 105 11.6
130°F
775
2930
1018
3848
1175
4442
1449
5477
1645
6218
1950
7371
Deg. F
Rise
40
40
40
40
40
40