Download A.O. Smith ATI-340H-N Technical Documents

Residential/Commercial Gas
Tankless Water Heaters
TANKLESS HIGH EFFICIENCY
CONDENSING MODELS
FEATURES
ULTRA-LOW NOx CONDENSING TECHNOLOGY PROVIDES UNPRECEDENTED
0.95 ENERGY FACTOR
DURABLE HEAT EXCHANGER
■
Primary Heat Exchanger is constructed of HRS35, a Commercial-Grade Copper that is more
resilient to erosion. HRS35 is 25x better at heat transfer than stainless steel thus stabilizing
outgoing water temperatures quicker
■
Secondary Heat Exchanger is made of Type 316L Stainless Steel to protect against corrosion
CONTINUOUS MAXIMUM FLOW RATES UP TO 10.0 GPM
ENERGY STAR® QUALIFIED
AVAILABLE IN NATURAL GAS OR PROPANE (LP)
ATI 540H & AT0 540H CAN BE USED IN BOTH RESIDENTIAL AND
COMMERCIAL APPLICATIONS
INDOOR MODELS
ATI-240H, ATI-340H, ATI-540H
ELECTRONIC IGNITION - NO PILOT LIGHT
INDOOR MODEL - INCLUDES A BUILT-IN TEMPERATURE CONTROLLER AND
ADVANCED DIAGNOSTICS TO SIMPLIFY TROUBLESHOOTING
OUTDOOR MODEL - INCLUDES A WALL MOUNT TEMPERATURE REMOTE
CONTROLLER AND ADVANCED DIAGNOSTICS TO SIMPLIFY TROUBLESHOOTING
FACTORY-INSTALLED POWER CORD INCLUDED FOR INDOOR MODELS
EASY-LINK UP TO 4 UNITS (540H MODELS ONLY)
■ With no additional parts or accessories needed
MULTI-LINK UP TO 20 UNITS (540H MODELS ONLY)
COMPLIES WITH LEAD FREE STANDARDS
SAFETY FEATURES:
■ Air-Fuel Ratio (AFR) Sensor
■ Exhaust & Water Temperature Safety Control
■ Overheat Cut-Off Fuse
OUTDOOR MODELS
ATO-240H, ATO-340H, ATO-540H
INTERNAL FREEZE PROTECTION SYSTEM
POWER DIRECT VENT DESIGN
■
■
■
Exhaust, 3" PVC Venting up to 70 Feet or 4" PVC Venting up to 100 Feet
Provides flexible venting with PVC, CPVC, or ABS Pipe for Intake and Exhaust (solid core
only). Canadian Installations Require ULCS636 Listed PVC or CPVC Pipe for Venting.
Category IV Stainless Steel venting can also be used
540 model
only
ACCESSORIES
■
■
■
■
Pipe Cover
Neutralizer Kit
Isolation Valve Kits
Concentric Termination
WARRANTY
■ 15-year limited warranty on heat exchanger in residential applications
■ 10-year limited warranty on heat exchanger in commercial applications
■ 5-year limited warranty on all parts
®
ANSI Z21.10.3
CSA 4.3
Page 1 of 6
Revised March 2013
AOSRG46835
Residential/Commercial Gas
Tankless Water Heaters
TANKLESS HIGH EFFICIENCY CONDENSING MODELS
GAS CONSUMPTION
INPUT
MODEL
NUMBER
FUEL
TYPE
MINIMUM
BTU/H
MAXIMUM
BTU/H
INLET GAS
PRESSURE
DIMENSIONS IN INCHES
HOT/COLD
MINIMUM MAXIMUM ENERGY MAX
AND
W.C.
W.C.
FACTOR GPM* GAS CONN.
A
HEIGHT
B
WIDTH
C
DEPTH
UNIT
WEIGHT
(LBS)
INDOOR
ATI-240H-N
Natural
15,000
160,000
5.0
10.5
0.95
6.6
3/4” NPT
23-5/8
17-3/4
11-1/4
58
ATI-240H-P
Propane
13,000
160,000
8.0
14.0
0.95
6.6
3/4” NPT
23-5/8
17-3/4
11-1/4
58
ATI-340H-N
Natural
15,000
180,000
5.0
10.5
0.95
8.0
3/4"NPT
23-5/8
17-3/4
11-1/4
58
ATI-340H-P
Propane
13,000
180,000
8.0
14.0
0.95
8.0
3/4"NPT
23-5/8
17-3/4
11-1/4
58
ATI-540H-N
Natural
15,000
199,000
5.0
10.5
0.95
10.0
3/4"NPT
23-5/8
17-3/4
11-1/4
59
ATI-540H-P
Propane
13,000
199,000
8.0
14.0
0.95
10.0
3/4"NPT
23-5/8
17-3/4
11-1/4
59
OUTDOOR
ATO-240H-N
Natural
15,000
160,000
5.0
10.5
0.95
6.6
3/4” NPT
23-5/8
17-3/4
11-1/4
58
ATO-240H-P
Propane
13,000
160,000
8.0
14.0
0.95
6.6
3/4” NPT
23-5/8
17-3/4
11-1/4
58
ATO-340H-N
Natural
15,000
180,000
5.0
10.5
0.95
8.0
3/4"NPT
23-5/8
17-3/4
11-1/4
58
ATO-340H-P
Propane
13,000
180,000
8.0
14.0
0.95
8.0
3/4"NPT
23-5/8
17-3/4
11-1/4
58
ATO-540H-N
Natural
15,000
199,000
5.0
10.5
0.95
10.0
3/4"NPT
23-5/8
17-3/4
11-1/4
59
ATO-540H-P
Propane
13,000
199,000
8.0
14.0
0.95
10.0
3/4"NPT
23-5/8
17-3/4
11-1/4
59
All dimensions are in inches.
15-150 psi Water Pressure. 40 psi or above is recommended for maximum flow.
*Current numbers based on factory testing; 0.4 GPM required for continuous fire after initial ignition.
Indoor models are certified from sea level to 10,100 ft. elevations.
In accordance with ANSI Z21.10.3, CO emission does not exceed 400 PPM for normal input.
The manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligation.
For Technical Information call 1-877-737-2840. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.
Page 2 of 6
AOSRG46835
Residential/Commercial Gas
Tankless Water Heaters
INDOOR MODEL
11-1/4" (285 mm)
4" (101 mm)
∅ 4" (102 mm)
Female
5-3/4" (147 mm)
Exhaust
2-5/8" (65 mm)
∅ 4" (102 mm)
Female
22-1/2" (570 mm)
23-5/8" (600 mm)
24-7/8" (631 mm)
6-1/4" (159mm)
Intake
2-5/8" (68 mm)
17-3/4" (450 mm)
7" (180 mm)
10-3/4" (272mm)
Condensate drain port
7-1/2" (189 mm)
GAS 5-7/8" (147 mm)
120 VAC 3" (77 mm)
COLD 5/8" (17 mm)
5-3/4" (147 mm)
17-5/8" (448 mm)
Condensate drain port
7-7/8" (199 mm)
COLD 6-3/4" (172 mm)
120 VAC 6-7/8" (174 mm)
HOT 5-1/2" (140 mm)
HOT 4-3/4" (120 mm)
1/2 (13 mm)
GAS 5-1/8" (131 mm)
HOT 5-1/2" (140 mm)
Drain port 6" (152 mm)
COLD 6-3/4" (172 mm)
120 VAC 6-7/8" (174 mm)
Condensate drain port
7-7/8" (199 mm)
COLD 5/8" (17 mm)
120 VAC 3" (77 mm)
GAS 5-3/4" (147 mm)
Condensate drain port
7-1/2" (189 mm)
GAS 5-1/8" (131 mm)
HOT 4-3/4" (120 mm)
Drain port
6-3/4" (170 mm)
6-1/4" (159 mm)
For Technical Information call 1-877-737-2840. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.
Page 3 of 6
AOSRG46835
Residential/Commercial Gas
Tankless Water Heaters
OUTDOOR MODEL
17-3/4" (450 mm)
7" (180 mm)
11-1/4" (285 mm)
11" (281 mm)
22-1/2" (570 mm)
3-5/8" (92 mm)
1-1/2" (37 mm)
23-5/8" (600 mm)
24-7/8" (631 mm)
4-1/2" (114 mm)
10-3/4" (272 mm)
HOT 4-3/4" (120 mm)
120 VAC 6-1/4" (159 mm)
Drain port
6-3/4" (170 mm)
COLD 5/8" (17 mm)
GAS 5-3/4" (147 mm)
Condensate drain port
7-1/2" (189 mm)
1/2" (13 mm)
120 VAC 3" (77 mm)
GAS (131 mm)
HOT (140 mm)
Drain port 6" (152 mm)
COLD 6-3/4" (172 mm)
Condensate drain port
7-7/8" (199 mm)
HOT 4-3/4" (120 mm)
Condensate drain port
7-1/2" (189 mm)
120 VAC
6-1/4" (159 mm)
Condensate drain port
7-7/8" (199 mm)
COLD 6-3/4" (172 mm)
GAS 5-1/8" (131 mm)
120 VAC 3" (77 mm)
HOT 5-1/2" (140 mm)
17-5/8" (448 mm)
COLD 5/8" (17 mm)
For Technical Information call 1-877-737-2840. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.
Page 4 of 6
AOSRG46835
Residential/Commercial Gas
Tankless Water Heaters
FLOW RATE vs TEMPERATURE RISE
240H
340H
Flow Rate vs. Temperature Rise
10.0
10.0
9.0
9.0
8.0
8.0
Flow Rate (GPM)
11.0
7.0
6.0
5.0
4.0
3.0
7.0
6.0
5.0
4.0
3.0
2.0
2.0
1.0
1.0
0.0
0.0
0
20
40
60
80
0
100
20
40
60
80
100
Temperature Rise (°F)
Temperature Rise (°F)
540H
Flow Rate vs. Temperature Rise
11.0
10.0
9.0
8.0
Flow Rate (GPM)
Flow Rate (GPM)
Flow Rate vs. Temperature Rise
11.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
0
20
40
60
80
100
120
140
Temperature
TemperatureRise
Rise(°F)
(˚F)
Set temperature 125˚F (52˚C) or lower
Set temperature 130˚F (55˚C) or higher
For Technical Information call 1-877-737-2840. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.
Page 5 of 6
AOSRG46835
Residential/Commercial Gas
Tankless Water Heaters
PRESSURE LOSS
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Specification
Water heater(s) shall be Model_________________ as manufactured by A. O. Smith Water Heaters, 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 3” or 4” Schedule 40 PVC, CPVC, or ABS vent pipe, or stainless steel Category III vent pipe at a distance not to exceed 70’ (equivalent) for 3” vent or 100’ (equivalent) for 4” vent,
terminating vertically or horizontally as prescribed. Intake air pipe may be of such material as ABS, PVC, galvanized B-Vent, corrugated aluminum or stainless steel, or Category IV stainless steel not to exceed
70’ (equivalent) for 3” vent or 100’ (equivalent) for 4” vent.
The heater(s) shall be controlled by an onboard solid-state printed circuit board monitoring incoming and outgoing temperatures with factory installed thermistors, sensing and controlling flow rate to set point
temperature, controlling both air and gas mixture inputs to maintain thermal combustion efficiency. The heater(s) shall also consist of inline fusing, a spark ignition and sensor system, aluminized stainless steel
burners, an air-fuel ratio sensor, a hi-limit temperature switch, modulating and proportional gas valves, a freeze protection sensor with ceramic heating blocks, and an overheat cutoff fuse.
The water heater(s) shall be CSA listed, exceed the energy efficiency requirements of ASHRAE 90.1b-1992, and shall comply with SCAQMD Rule 1146.2 Ultra-Low NOx Standards.
For Technical Information call 1-877-737-2840. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.
Page 6 of 6
www.hotwater.com
AOSRG46835