Manualshelf

Submittal Sheet

ManualsBrandsAO Smith ManualsPlumbing Supplies190,000 BTU Non-Condensing Outdoor Tankless Water Heater (NG/LP)
1234
Page 2 of 4
AOSBG45100
Residential/Commercial Gas
Water Heaters
15-150 PSI water pressure. 40 PSI or above recommended for maximum flow.
*Field gas convertible from natural gas to propane. Conversion kit is included with the heater.
**For Propane, minimum inlet gas pressure is 8.0 in W.C. and maximum inlet gas pressure is 14.0 in W.C.
***Current numbers based on factory testing; 0.5 GPM required for activation; 0.4 GPM required for continuous fire after initial ignition.
+Suitable for commercial applications.
Indoor models are certified from sea level to 10,100 ft. elevations. Outdoor models are certified from sea level to 6,000 ft. elevation.
Model Number Type*
Gas Consumption Input Inlet Gas Pressure**
Energy
Factor
(EF)
Maximum
GPM***
Hot/Cold
Connections
Gas
Connection
Dimensions in Inches
Unit
Weight
(lbs)
Minimum
BTU/H
Maximum
BTU/H
Minimum
in. W.C.
Maximum
in. W.C.
Height Width Depth
Indoor Models
ATI-110U 200 Natural 15,000 140,000 4.0 10.5 0.82 6.6 3/4" NPT 3/4" NPT 20-1/2 13-3/4 10 38
ATI-310U 200 Natural 15,000 190,000 4.0 10.5 0.82 8 3/4" NPT 3/4" NPT 20-1/2 13-3/4 10 38
ATI-510U 200+ Natural 15,000 199,000 4.0 10.5 0.82 10 3/4" NPT 3/4" NPT 20-1/2 13-3/4 10 40
Outdoor Models
ATO-110U 200 Natural 15,000 140,000 4.0 10.5 0.82 6.6 3/4" NPT 3/4" NPT 20-1/2 13-3/4 9-1/2 38
ATO-310U 200 Natural 15,000 190,000 4.0 10.5 0.82 8 3/4" NPT 3/4" NPT 20-1/2 13-3/4 9-1/2 38
ATO-510U 200+ Natural 15,000 199,000 4.0 10.5 0.82 10 3/4" NPT 3/4" NPT 20-1/2 13-3/4 9-1/2 40
120 VAC 1-5/8" (40 mm)
COLD 1-5/8" (41 mm)
GAS 5" (127 mm)
HOT 4-5/8" (116 mm)
20-1/2" (520 mm)
1" (26 mm)
13-3/4" (350 mm)
10" (254 mm)
1-3/4" (45 mm) 1-3/4" (45 mm)
21-1/2" (545 mm)
1-3/8" (36 mm)
4-3/8" (113mm)
19-3/8" (493 mm)
120 VAC 3" (75 mm)
GAS 5-1/4" (135 mm)
HOT 6" (153 mm)
COLD 6" (153 mm)
2-1/4" (58 mm)
3-5/8"(93 mm)
10" (256 mm)
1-7/8"(47 mm)
HOT 5"(127mm)
120VAC 1-7/8" (49 mm)
GAS 4-1/4" (109 mm)
COLD 5" (127 mm)
5-1/8" (130 mm)
13-1/8" (334 mm)
4-3/8" (113 mm)
AT-KJr3U/K5U/D3U-IN
120 VAC 1-5/8" (40 mm)
COLD 1-5/8" (41 mm)
GAS 5" (127 mm)
HOT 4-5/8" (116 mm)
20-1/2" (520 mm)
1" (26 mm)
13-3/4" (350 mm)
10" (254 mm)
1-3/4" (45 mm) 1-3/4" (45 mm)
21-1/2" (545 mm)
1-3/8" (36 mm)
4-3/8" (113mm)
19-3/8" (493 mm)
120 VAC 3" (75 mm)
GAS 5-1/4" (135 mm)
HOT 6" (153 mm)
COLD 6" (153 mm)
2-1/4" (58 mm)
3-5/8"(93 mm)
10" (256 mm)
1-7/8"(47 mm)
HOT 5"(127mm)
120VAC 1-7/8" (49 mm)
GAS 4-1/4" (109 mm)
COLD 5" (127 mm)
5-1/8" (130 mm)
13-1/8" (334 mm)
4-3/8" (113 mm)
AT-KJr3U/K5U/D3U-IN
120 VAC 1-5/8" (40 mm)
COLD 1-5/8" (41 mm)
GAS 5" (127 mm)
HOT 4-5/8" (116 mm)
1" (26 mm)
13-3/4" (350 mm)
10" (254 mm)
1-3/4" (45 mm) 1-3/4" (45 mm)
21-1/2" (545 mm)
19-3/8" (493 mm)
120 VAC 3" (75 mm)
GAS 5-1/4" (135 mm)
HOT 6" (153 mm)
COLD 6" (153 mm)
9-1/2" (241 mm)
HOT 5" (127 mm)
120VAC 1-7/8" (49 mm)
GAS 4-1/4" (109 mm)
COLD 5" (127 mm)
13-1/8" (334 mm)
8" (203 mm)
1-5/8" (43 mm)
AT-KJr3U/K5U/D3U-OS
120 VAC 1-5/8" (40 mm)
COLD 1-5/8" (41 mm)
GAS 5" (127 mm)
HOT 4-5/8" (116 mm)
1" (26 mm)
13-3/4" (350 mm)
10" (254 mm)
1-3/4" (45 mm) 1-3/4" (45 mm)
21-1/2" (545 mm)
19-3/8" (493 mm)
120 VAC 3" (75 mm)
GAS 5-1/4" (135 mm)
HOT 6" (153 mm)
COLD 6" (153 mm)
9-1/2" (241 mm)
HOT 5" (127 mm)
120VAC 1-7/8" (49 mm)
GAS 4-1/4" (109 mm)
COLD 5" (127 mm)
13-1/8" (334 mm)
8" (203 mm)
1-5/8" (43 mm)
AT-KJr3U/K5U/D3U-OS
INDOOR MODEL DIMENSIONS
CLEARANCES: TOP 12”, BOTTOM 12”, FRONT 4”, BACK 1”, SIDES 3”
OUTDOOR MODEL DIMENSIONS
CLEARANCES: TOP 36”, BOTTOM 12”, FRONT 24”, BACK 1”, SIDES 3”
FRONT VIEW FRONT VIEW
SIDE VIEW SIDE VIEW
BOTTOM VIEW BOTTOM VIEWTOP VIEW TOP VIEW