Specification Sheet

Heavy-Duty Commercial Gas
Tankless Water Heaters
October 2017 Page 2 of 2
www.hotwater.com | 800-265-8520 Toll-free Canada CANCG14001
For Technical Information call 888-599-2837. A. O. Smith Enterprises Ltd. reserves the right to make product changes or improvements without prior notice.
MODEL
FUEL
TYPE
GAS
CONSUMPTION
INPUT
THERMAL
EFFICIENCY
INLET GAS
PRESSURE
GPM**
DIMENSIONS
IN (CM)
VOLT AMP FLUE*** INTAKE
HOT/COLD
GAS
CONN.
UNIT
WEIGHT
LB (KG)
MIN.
BTU/h
MAX.
BTU/h
MIN.
W.C.
MAX.
W.C.
HEIGHT WIDTH DEPTH
ATI-910-N
Natural 15,000 380,000 80% 5.0 10.5 0.5 - 14.5 25 ¼ (64) 24
7
/
8
(63) 12 ¼ (31) 120 1.48 5” O.D. 5” O.D. 1” NPT 112 (51)
ATI-910-P
Propane 15,000 380,000 82% 8.0 14.0 0.5 - 14.5 25 ¼ (64) 24
7
/
8
(63) 12 ¼ (31) 120 1.48 5” O.D. 5” O.D. 1” NPT 112 (51)
ATI-910-AN*
Natural 15,000 380,000 80% 5.0 10.5 0.5 - 14.5 25 ¼ (64) 24
7
/
8
(63) 12 ¼ (31) 120 1.48 5” O.D. 5” O.D. 1” NPT 112 (51)
ATI-910-AP*
Propane 15,000 380,000 82% 8.0 14.0 0.5 - 14.5 25 ¼ (64) 24
7
/
8
(63) 12 ¼ (31) 120 1.48 5” O.D. 5” O.D. 1” NPT 112 (51)
*ASME models
**Current numbers based on factory testing, 0.4 GPM required for continuous fire after initial ignition.
15 - 150 psi water pressure. Pressure only relief valve requires (Min. 380,000 BTUs. 150 PSI). Min 40 PSI or above recommended for maximum flow.
*** Category III required
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
5
-3/8" (137.3mm) HOT
4-3/8" (110.8mm) GAS
6-3/4" (171.3mm) 120V
CLEARANCES:
Top 12Ó,Bottom 12Ó,Front 24Ó,Back0 .5Ó,Sides 2Ó
Flow Rate (gpm)
Temperature Rise (°F)
Flow Rate (gpm)
Pressure Loss( psi)
Head Feet
Aboves hownr atei s based on single unit only
Pressure Loss
Set temperature of 145° or lower Set temperature of 150° or higher
0
25 45 65 85 105 125 145
2
4
6
8
10
12
14
16
10.0
5.0
0.0
0
20
40
15
25
0
10
10
20
30
50
5
15.0
Set temperature of 145° or lower Set temperature of 150° or higher
SUGGESTED SPECIFICATION
Water heater(s) shall be Model _________________ as manufactured by A. O. Smith. The water heater(s) shall be a copper coil integral fin and tube construction with quick release
brass or bronze waterways. Heater(s) will be factory assembled and tested. The heater shall be vented with 5” stainless steel Category III vent pipe a distance not to exceed 50
(equivalent) feet terminating vertically or horizontally as prescribed. Intake air with optional direct vent kit may be of such material as ULC S636 PVC or CPVC, galvanized B-Vent,
corrugated aluminum or stainless steel or Category IV stainless steel not to exceed a total of 50 (equivalent) feet. The heater(s) shall be controlled by onboard solid state printed
circuit board monitoring incoming and outgoing temperatures with factory-installed thermistors, sensing and controlling flow rate to set point temperature with control both air
and gas mixture inputs to maintain thermal combustion efficiency. Unit also consists of ground fault interrupter, inline fusing, spark ignition and sensor system, aluminized stainless
steel burners, air-fuel ratio rod, hi limit switch, modulating and proportional gas valves, freeze protection sensor and heating blocks and overheat cutoff fuses. The water heater(s)
shall be CSA listed, and meets or exceeds the energy efficiency requirements of NRCan and current edition of ASHRAE 90.1.
Flow Rate Vs. Temperature Rise
CLEARANCES:
Top 12”, Bottom 12”, Front* 12”, Back 0.5”, Sides 3”
*Recommended 24” clearance from front of unit for maintenance
Above shown rate is based on a single unit only
Pressure Loss
Set temperature 145°F (63°C) or lower Set temperature 150°F (66°C) or higher
Pressure Lost (psi)
Head (Feet)
Flow Rate (gpm)
Flow Rate (gpm)
Temperature Rise (°F)
Set temperature 145°F (63°C) or lower Set temperature 150°F (66°C) or higher
GAS
GAS
HOT
HOT
COLD
COLD