Residential/Commercial Gas Tankless Water Heaters€¦ · Residential/Commercial Gas Tankless Water...
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Residential/Commercial Gas Tankless Water Heaters FEATURES 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 MODEL - INCLUDES INTEGRATED TEMPERATURE CONTROLS 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 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 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) COMMON VENT UP TO 8 UNITS COMPLIES WITH LEAD FREE STANDARDS SAFETY FEATURES: ■ Air-Fuel Ratio (AFR) Sensor ■ Exhaust & Water Temperature Safety Control ■ Overheat Cut-Off Fuse 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 ACCESSORIES ■ Pipe Cover ■ Neutralizer Kit ■ Isolation Valve Kits ■ Concentric Termination PRODUCT PRESERVERS ® ANTI-SCALE SYSTEM 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 INDOOR MODELS OUTDOOR MODELS ANSI Z21.10.3 CSA 4.3 A. O. Smith Corporation • 500 Tennessee Waltz Parkway • Ashland City, TN 37015 • 800-527-1953 Toll-free USA Page 1 of 6 www.hotwater.com Revised February 2014 AOSRG46835 TANKLESS HIGH EFFICIENCY CONDENSING MODELS ® 540 model only ATI and ATO240-540H Ultra-Low NOx Gas Tankless Water Heaters with Condensing Technology featuring an unprecedented 0.95 Energy Factor which lowers operating costs and is environmentally friendly Sold by www.GadgetsGo.com Authorized Dealer
Transcript of Residential/Commercial Gas Tankless Water Heaters€¦ · Residential/Commercial Gas Tankless Water...
Residential/Commercial Gas Tankless Water Heaters
FEATURES
CONTINUOUS MAXIMUM FLOWRATES UP TO 10.0 GPM
ENERGY STAR® QUALIFIED
AVAILABLE IN NATURAL GAS ORPROPANE (LP)
ATI 540H & AT0 540H CAN BE USEDIN BOTH RESIDENTIAL ANDCOMMERCIAL APPLICATIONS
INDOOR MODEL - INCLUDESINTEGRATED TEMPERATURECONTROLS AND ADVANCEDDIAGNOSTICS TO SIMPLIFYTROUBLESHOOTING
OUTDOOR MODEL - INCLUDES AWALL MOUNT TEMPERATUREREMOTE CONTROLLER ANDADVANCED DIAGNOSTICS TOSIMPLIFY TROUBLESHOOTING
FACTORY-INSTALLED POWER CORDINCLUDED FOR INDOOR MODELS
DURABLE HEAT EXCHANGER■ Primary Heat Exchanger is constructed of
HRS35, a Commercial-Grade Copper that ismore resilient to erosion. HRS35 is 25xbetter at heat transfer than stainless steelthus stabilizing outgoing watertemperatures quicker
■ Secondary Heat Exchanger is made of Type316L Stainless Steel to protect againstcorrosion
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)
COMMON VENT UP TO 8 UNITS
COMPLIES WITH LEAD FREE STANDARDS
SAFETY FEATURES:■ Air-Fuel Ratio (AFR) Sensor■ Exhaust & Water Temperature Safety
Control■ Overheat Cut-Off Fuse
INTERNAL FREEZE PROTECTIONSYSTEM
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 (solidcore only). Canadian Installations RequireULCS636 Listed PVC or CPVC Pipe forVenting.
■ Category IV Stainless Steel venting canalso be used
ACCESSORIES■ Pipe Cover■ Neutralizer Kit■ Isolation Valve Kits■ Concentric Termination
PRODUCT PRESERVERS®
ANTI-SCALE SYSTEM
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
INDOOR MODELS
OUTDOOR MODELS
ANSI Z21.10.3 CSA 4.3
A. O. Smith Corporation • 500 Tennessee Waltz Parkway • Ashland City, TN 37015 • 800-527-1953 Toll-free USA Page 1 of 6
www.hotwater.com Revised February 2014 AOSRG46835
TANKLESS HIGH EFFICIENCY CONDENSING MODELS
®
540 model only
ATI andATO240-540HUltra-Low NOx Gas Tankless Water Heaters with Condensing
Technology featuring an unprecedented 0.95 Energy Factor whichlowers operating costs and is environmentally friendly
AOSRG46835 R Jan 2014 Condensing ULN Tankless Spec _Layout 1 2/12/14 5:25 PM Page 1
Sold by www.GadgetsGo.com Authorized Dealer
Residential/Commercial Gas Tankless Water Heaters
Page 2 of 6
Revised February 2014 AOSRG46835
For Technical Information call 1-877-737-2840. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.
TANKLESS HIGH EFFICIENCY CONDENSING MODELS
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; 0.5 GPM for activation; 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.
MODEL NUMBER
FUEL TYPE
GAS CONSUMPTION INPUT
INLET GAS PRESSURE
ENERGY FACTOR
MAXGPM*
HOT/COLD AND
GAS CONN.
DIMENSIONS IN INCHESUNITWEIGHT(LBS)
MINIMUMBTU/H
MAXIMUMBTU/H
MINIMUMW.C.
MAXIMUMW.C.
AHEIGHT
BWIDTH
CDEPTH
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
AOSRG46835 R Jan 2014 Condensing ULN Tankless Spec _Layout 1 2/12/14 5:25 PM Page 2
Sold by www.GadgetsGo.com Authorized Dealer
Residential/Commercial Gas Tankless Water Heaters
Page 3 of 6
Revised February 2014 AOSRG46835
For Technical Information call 1-877-737-2840. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.
7-7/
8" (1
99 m
m)
GA
S 5-
1/8"
(131
mm
)
COLD
6-3
/4"
(172
mm
)
HO
T 5-
1/2"
(140
mm
)
7-1/2" (189 mm)GAS 5-7/8" (147 mm)
Condensate drain port
COLD 5/8" (17 mm)
HOT 4-3/4" (120 mm)
17-5/8" (448 mm)
6-1/4" (159 mm)
5-3/
4" (1
47 m
m)
120 VAC 3" (77 mm)
120
VAC
6-7/
8" (1
74 m
m)
∅
Drain port
Female
10-3/4" (272mm)
22-1
/2"
(570
mm
)
Cond
ensa
te d
rain
por
t
4" (102 mm)
2-5/
8" (6
8 m
m)
Exha
ust
Inta
ke
Female∅
7-7/8" (199 mm)
7-1/2" (189 mm)
7" (180 mm) 4" (101 mm)
17-3/4" (450 mm)
HOT 4-3/4" (120 mm)
6-3/4" (170 mm)
COLD 5/8" (17 mm)
GAS 5-3/4" (147 mm)Condensate drain port
23-5
/8"
(600
mm
)
2-5/
8" (6
5 m
m)
5-3/4" (147 mm)
11-1/4" (285 mm)
1/2 (13 mm)GAS 5-1/8" (131 mm)HOT 5-1/2" (140 mm)
COLD 6-3/4" (172 mm)
Condensate drain port
6-1/4" (159mm)
4" (102 mm)
24-7
/8"
(631
mm
)
120 VAC 3" (77 mm)
Drain port 6" (152 mm)
120 VAC 6-7/8" (174 mm)
INDOOR MODEL
AOSRG46835 R Jan 2014 Condensing ULN Tankless Spec _Layout 1 2/12/14 5:25 PM Page 3
Sold by www.GadgetsGo.com Authorized Dealer
Residential/Commercial Gas Tankless Water Heaters
Page 4 of 6
Revised February 2014 AOSRG46835
For Technical Information call 1-877-737-2840. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.
17-5/8" (448 mm)
6-1/4" (159 mm) COLD 5/8" (17 mm)
120
VAC
3" (7
7 m
m)
HO
T 5-
1/2"
(140
mm
)
HOT 4-3/4" (120 mm) 7-1/2" (189 mm)Condensate drain port
GA
S 5-
1/8"
(131
mm
)
COLD
6-3
/4"
(172
mm
)
7-7/
8" (1
99 m
m)
Drain port7-1/2" (189 mm)
10-3/4" (272 mm)22
-1/2
" (5
70 m
m)
120 VAC
Cond
ensa
te d
rain
por
t
7-7/8" (199 mm)
Condensate drain port
11" (281 mm)
1/2" (13 mm)120 VAC 3" (77 mm)GAS (131 mm)HOT (140 mm)
COLD 6-3/4" (172 mm)Condensate drain port
COLD 5/8" (17 mm)GAS 5-3/4" (147 mm)
HOT 4-3/4" (120 mm)
6-3/4" (170 mm)
1-1/
2" (3
7 m
m)
11-1/4" (285 mm)
120 VAC 6-1/4" (159 mm)
17-3/4" (450 mm)
7" (180 mm)
23-5
/8"
(600
mm
)
24-7
/8"
(631
mm
)
3-5/
8" (9
2 m
m)
4-1/2" (114 mm)
Drain port 6" (152 mm)
OUTDOOR MODEL
AOSRG46835 R Jan 2014 Condensing ULN Tankless Spec _Layout 1 2/12/14 5:25 PM Page 4
Sold by www.GadgetsGo.com Authorized Dealer
Residential/Commercial Gas Tankless Water Heaters
Page 5 of 6
Revised February 2014 AOSRG46835
For Technical Information call 1-877-737-2840. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.
FLOW RATE vs TEMPERATURE RISE
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
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10.0
11.0
0 20 40 60 80 100 120 140
Flow
Rat
e (G
PM
)
Temperature Rise (˚F)
Set temperature 125˚F (52˚C) or lower
Set temperature 130˚F (55˚C) or higher
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Flow
Rat
e (G
PM
)
540H
240H 340H
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Flow
Rat
e (G
PM
)
Flow Rate vs. Temperature Rise Flow Rate vs. Temperature Rise
Temperature Rise (°F)
Flow Rate vs. Temperature Rise
Temperature Rise (°F)
Temperature Rise (°F)
AOSRG46835 R Jan 2014 Condensing ULN Tankless Spec _Layout 1 2/12/14 5:25 PM Page 5
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PRESSURE LOSS
Residential/Commercial Gas Tankless Water Heaters
A. O. Smith Corporation • 500 Tennessee Waltz Parkway • Ashland City, TN 37015 • 800-527-1953 Toll-free USA Page 6 of 6
www.hotwater.com Revised February 2014 AOSRG46835
For Technical Information call 1-877-737-2840. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.
0
20
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60
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120
0
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15
20
25
30
35
40
45
50
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
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sure
Los
s (p
si)
Hea
d (F
eet)
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Hea
d (F
eet)
Pres
sure
Los
s (p
si)
240H 340H
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d (F
eet)
Pres
sure
Los
s (p
si)
Flow rate (GPM)
Set temperature 125˚F (52˚C) or lowerSet temperature 130˚F (55˚C) or higher
S
540H
Pressure Loss
Flow Rate (GPM)
Pressure Loss
Flow Rate (GPM)
Pressure Loss
Flow Rate (GPM)
Specification
Water heater(s) shall be Model_________________ as manufactured by A. O. SmithWater 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 exceed70’ (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 pointtemperature, 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 steelburners, 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.
AOSRG46835 R Jan 2014 Condensing ULN Tankless Spec _Layout 1 2/12/14 5:25 PM Page 6
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