Manualshelf

Water Heater Brochure

ManualsBrandsA.O. Smith ManualsWater HeatersX3 - 5.8 GPM at 60° F Rise - 0.95 UEF - Propane Tankless Water Heater - Indoor
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Accessories
Dimensions
Side viewFront view
13-7/8" (352mm)
4" (102mm)4" (102mm)
6-1/4" (158.5mm)
10" (254mm)
10-5/16" (262.2mm)
10-13/16" (274.6mm)
6" (152.1mm)
2-9/16" (64.8mm)
2-3/4" (70.2mm)
22-7/8 (580mm)
Gas 4/1/2" (113.7mm)
Hot 4-3/4" (121.1mm)
Condensate drain port
5-1/16" (129.1mm)
7-1/16" (180mm)
120VAC 3-1/16" (77mm)
Cold 1/2" (13.3mm)
Condensate drain port 3-1/4" (82.1mm)
Gas 4-1/8" (105.4mm)
Hot 6-1/2" (164.6mm)
Cold 7" (178.5mm)
120VAC 7-3/4" (196.5mm)
1" (25.5mm)
24" (609.4mm)
5-3/8" (137mm)
13-5/16" (338.1mm)
6" (152.1mm)
2-5/16" (58.4mm)
6-1/4" (158.5mm)
58.4
4-3/16" (106.1mm)
7-1/16" (179.2mm)
7-3/4" (197.2mm)
3-1/4" (82.8mm)
HOT 6-1/2" (165.3mm)
1/2" (13.3mm)
3-1/16" (77mm)
4-1/2" (113.7mm)
4-3/4" (121.1mm)
5-1/16" (129.1mm)
GAS
COLD
120VAC
Condensate drain port
Bo om view
Top view
INDOOR MODEL
Side viewFront view
13-7/8" (352mm)
4" (102mm)4" (102mm)
6-1/4" (158.5mm)
10" (254mm)
10-5/16" (262.2mm)
10-13/16" (274.6mm)
6" (152.1mm)
2-9/16" (64.8mm)
2-3/4" (70.2mm)
22-7/8 (580mm)
Gas 4/1/2" (113.7mm)
Hot 4-3/4" (121.1mm)
Condensate drain port
5-1/16" (129.1mm)
7-1/16" (180mm)
120VAC 3-1/16" (77mm)
Cold 1/2" (13.3mm)
Condensate drain port 3-1/4" (82.1mm)
Gas 4-1/8" (105.4mm)
Hot 6-1/2" (164.6mm)
Cold 7" (178.5mm)
120VAC 7-3/4" (196.5mm)
1" (25.5mm)
24" (609.4mm)
5-3/8" (137mm)
13-5/16" (338.1mm)
6" (152.1mm)
2-5/16" (58.4mm)
6-1/4" (158.5mm)
58.4
4-3/16" (106.1mm)
7-1/16" (179.2mm)
7-3/4" (197.2mm)
3-1/4" (82.8mm)
HOT 6-1/2" (165.3mm)
1/2" (13.3mm)
3-1/16" (77mm)
4-1/2" (113.7mm)
4-3/4" (121.1mm)
5-1/16" (129.1mm)
GAS
COLD
120VAC
Condensate drain port
Bo om view
Top view
INDOOR MODEL
Recess Box Std Retrofit
(100266729)
Recess Box Flange
(100266730)
Pipe Cover
(100187904)
Remote
Temperature
Controller
(100209924)
140H: Flow Rate vs. Temperature Rise
Temperature Rise (°F)
Flow Rate (gpm)
0
1
2
3
4
5
6
7
8
9
10
0 20 40 60 80 100
110
140H Output Temp vs. GPM
140H: Pressure Loss
Pressure Loss (psi)
Head (ft)
Flow Rate (gpm)
20
0
40
100
120
140
60
80
0
5
10
15
20
25
30
35
40
45
50
55
60
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
140H Pressure Loss
3" Concentric
Termination
(100112163)
Model Number
Clearances (inches)
Top Bottom Side Front
ATI-140H-N 12 12 3 4
ATO-140H-N 36 12 3 24
Isolation Valves
(100112255)
22