John Wood Commercial - 300-400K BTU - Manual (Page 10)

10
figure 6
These designs comply with the current edition of the American National Standard for gas Water Heaters, Volume III, ANSI Z21.10.3
/ CSA 4.3 as an automatic circulating tank water heater, and automatic storage water heaters.
rough in dimensions
gas line connection siZe
table 1
Model
Series Natural Gas Propane Gas
AJWSH130300 100/101 1 1/4” NPT 1 1/4” NPT
AJWSH130400 101/104
1 1/4” NPT 1 1/4” NPT
This table shows connections sizes only - see Table 4 on page 13 for minimum required supply gas line sizes. Depending on the installed equivalent length, and/or the
number of appliances connected, the supply gas line size may have to be increased beyond the minimum required sizes - see gas Line Sizing on page 36.
table 2
u. s. gallons/hr & liters/hr at temperature rise indicated
Model Type of
Gas
Input °F 20°F 30°F 40°F 50°F 60°F 70°F 80°F 90°F 100°F 110°F 120°F 130°F 140°F
btu/hr
kW
°C 11°C 17°C 22°C 28°C 33°C 39°C 44°C 50°C 56°C 61°C 67°C 72°C 78°C
AJWSH130300
Natural
300,000 88
GPH 1746 1164 873 699 582 499 436 388 349 318 291 269 250
Propane lPH 6610 4406 3304 2644 2203 1888 1652 1469 1322 1201 1102 1017 945
AJWSH130400
Natural
399,900 117
GPH 2328 1552 1164 931 776 665 582 517 466 423 388 359 332
Propane lPH 8813 5875 4406 3525 2938 2518 2203 1958 1763 1602 1469 1356 1259
recovery capacities are based on 96% thermal efficiency.
installation considerations
35°
20°
70°
18°
45°
45°
CLEANOUT
T &
P
VALVE
GAS
*1 1/2” NPT
WATER
OUTLET
FRONT
TOP
DRAIN V
AL
VE
INTAKE AIR
4 INCH PVC
VENT
4 INCHPVC
FRONT BACK
CLEANOUT
T & P
3/4” NPT
DRAIN
1 1/2” NPT
WATER INLET
4” PVC
VENT CONNECTION
(exhaust elbow)
4” PVC
INTAKE AIR
CONNECTION
1 1/4” SUPPLY GAS
CONNECTION
33.12” (84.1 cm)
OUTSIDE
DIAMETER
4.86”
(12.34 cm)
50.77”
(129 cm)
75.50”
(191.8 cm)
69”
(175.3 cm)
69”
(175.3 cm)
12”
(30.5 cm)
* Center line of water outlet on top of the water heater is 7 inches from the front edge of the water heater.
WATER
OUTLET
HEIGHT
63 INCHES
(160 cm)
CONDENSATE
DRAIN CONNECTION
1/2 INCH PVC
recoVery capacities