Brochure

7474
8" (203mm)
5" (127mm)
24-7/8" (632.9mm)
28-7/8" (734mm)
25-1/4" (642mm)
2-1/2" (62.1mm)
1/2" (11.9mm)
12-1/4" (311.5mm)
5-7/8" (150mm) HOT
4-7/8" (122.9mm)
4" (100mm) 120V
7-3/8" (186mm)GAS
1-5/8" (40mm) COLD
15" (381mm)
1/2" (12.5mm)
7-5/8" (194.3mm) COLD
-3/8" (137.3mm) HOT
4-3/8" (110.8mm) GAS
6-3/4" (171.3mm) 120V
*”-AN” means ASME rated. For propane models, change “N” to “P”.
**For propane models, minimum inlet gas pressure is 8.0 in. W.C. and maximum inlet gas
pressure is 14.0 in. W.C.
† Cold climate represents 70°F temperature rise
‡ Warm climate represents 50°F temperature rise
Model
Number*
Type
Gas Consumption Input Inlet Gas Pressure**
Minimum
(BTU/H)
Maximum
(BTU/H)
Minimum
(in. W.C.)
Maximum
(in. W.C.)
ATIO-910-N
Natural 15,000 380,000 5.0 10.5
ATIO-910-AN
Natural 15,000 380,000 5.0 10.5
Model
Number*
Thermal
Efficiency
Connections
Sizing Chart
(Number of Showers)
Water Gas
Cold
Climate†
Warm
Climate‡
ATIO-910-N
80% 1” NPT 1” NPT 5 7
ATIO-910-AN
80% 1” NPT 1” NPT 5 7
Model
Number*
Clearances
(inches)
Approx
Shipping
Weight
(lbs)
Top Bottom Side Front
ATIO-910-N
12 12 2 24 113
ATIO-910-AN
12 12 2 24 113