tankless condensing high efficiency water heaters …lochinvar.com/_linefiles/trh1-02.pdf · indoor...

INDOOR MODELLTI-140H-N

OUTDOOR MODELLTO-140H-N

FEATURES:ULTRA-LOW NOX CONDENSING TECHNOLOGY PROVIDES UP TO 0.91 UNIFORM ENERGY FACTOR (UEF)

ENERGY STAR® QUALIFIED

COMPLIES WITH CALIFORNIA SCAQMD RULE 1146.2 AND OTHER AIR QUALITY MANAGEMENT DISTRICTS WITH SIMILAR NOX EMISSION REQUIREMENTS OF 14 NG/J OR 20 PPM

OPERATES ON 1/2” GAS LINE WITH STANDARD GAS PRESSURE

DURABLE HEAT EXCHANGER• Copper Primary Heat Exchanger

• Secondary Heat Exchanger is made of Marine Grade Type 316L Stainless Steel to protect against corrosion

CONTINUOUS MAXIMUM FLOW RATES UP TO 6.6 GPM

AVAILABLE IN NATURAL GAS OR PROPANE (LP)

LTI-140H-N & LTO-140H-N CAN BE USED IN RESIDENTIAL HOT WATER AND HEATING APPLICATIONS (CHECK LOCAL CODES)

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

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).

• Category IV Stainless Steel venting can also be used

ACCESSORIES• Pipe Cover

• Neutralizer Kit

• Isolation Valve Kits

• Concentric Termination

• Recess Box

WARRANTY• 15-year limited warranty on heat

exchanger in residential applications

• 6-year limited warranty on heat exchanger in commercial applications

• 5-year limited warranty on all parts

Tankless Residential Water Heater Series

Tankless Condensing High Efficiency Water Heaters

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 required 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 TypeGas Consumption Input Inlet Gas Pressure

UEF Maximum GPM*

Hot/Cold Connections

Gas Connection

Dimensions in Inches Unit Weight

(lbs)Minimum

BTU/HMaximum

BTU/HMinimum

W.C.Maximum

W.C. Height Width Depth

Indoor Models

LTI-140H-N Natural 15,000 120,000 4.0 10.5 0.90 6.6 3/4" NPT 1/2" NPT 22-7/8 13-7/8 10-13/16 54

LTI-140H-P Propane 13,000 120,000 8.0 14.0 0.90 6.6 3/4" NPT 1/2" NPT 22-7/8 13-7/8 10-13/16 54

Outdoor Models

LTO-140H-N Natural 15,000 120,000 4.0 10.5 0.91 6.6 3/4" NPT 1/2" NPT 22-7/8 13-7/8 10-13/16 52

LTO-140H-P Propane 13,000 120,000 8.0 14.0 0.91 6.6 3/4" NPT 1/2" NPT 22-7/8 13-7/8 10-13/16 52

Tankless Residential Water Heater Series

INDOOR MODEL

OUTDOOR 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 (5

80m

m)

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

.4m

m)

5-3/8" (137mm)

13-5/16" (338.1mm)

6" (1

52.1

mm

)

2-5/16" (58.4mm)6-1/4" (158.5mm)

58.44-

3/16

" (1

06.1

mm

)

7-1/

16"

(179

.2m

m)

7-3/

4" (1

97.2

mm

)

3-1/

4" (8

2.8m

m)

HOT

6-1/

2" (1

65.3

mm

)

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

120V

AC

Cond

ensa

te d

rain

por

t

Bo om view Top view

INDOOR MODEL

Side viewFront view

13-7/8" (352mm)10" (254mm)

10-5/16" (262.2mm)

22-7

/8 (5

80m

m)

Gas 4/1/2" (113.7mm)

Hot 4-3/4" (121.1mm)

5-1/16" (129.1mm)Condensate drain port 7-1/16" (180mm)

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)

1" (25.5mm)

5-3/8" (137mm)7-1/16" (180mm)

5-3/8" (137mm)

2-9/

16"

(65.

8mm

)1-

11/1

6" (4

2.5m

m)

3" (75.5mm)8" (203mm)

10-3/4" (272.4mm)

120VAC 3-13/16" (96.1mm)120VAC 1-7/16" (36.8mm)

13-5/16" (338.1mm)

Cond

ensa

te d

rain

por

t

GAS

COLD

HOT

6-1/

2" (1

65.3

mm

)

3-1/

4" (8

2.8m

m)

4-3/

16"

(106

.1m

m)

7-1/

16"

(179

.2m

m)

1/2" (13.3mm)

4-1/2" (113.7mm)4-3/4" (121.1mm)

5-1/16" (129.1mm)1-7/16" (36.8mm)

Bo om view Top view

OUTDOOR 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 (5

80m

m)

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

.4m

m)

5-3/8" (137mm)

13-5/16" (338.1mm)

6" (1

52.1

mm

)

2-5/16" (58.4mm)6-1/4" (158.5mm)

58.4

4-3/

16"

(106

.1m

m)

7-1/

16"

(179

.2m

m)

7-3/

4" (1

97.2

mm

)

3-1/

4" (8

2.8m

m)

HOT

6-1/

2" (1

65.3

mm

)

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

120V

AC

Cond

ensa

te d

rain

por

t

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 (5

80m

m)

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

.4m

m)

5-3/8" (137mm)

13-5/16" (338.1mm)

6" (1

52.1

mm

)

2-5/16" (58.4mm)6-1/4" (158.5mm)

58.4

4-3/

16"

(106

.1m

m)

7-1/

16"

(179

.2m

m)

7-3/

4" (1

97.2

mm

)

3-1/

4" (8

2.8m

m)

HOT

6-1/

2" (1

65.3

mm

)

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

120V

AC

Cond

ensa

te d

rain

por

t

Bo om view Top view

INDOOR MODEL

Side viewFront view

13-7/8" (352mm)10" (254mm)

10-5/16" (262.2mm)

22-7

/8 (5

80m

m)

Gas 4/1/2" (113.7mm)

Hot 4-3/4" (121.1mm)

5-1/16" (129.1mm)Condensate drain port 7-1/16" (180mm)

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)

1" (25.5mm)

5-3/8" (137mm)7-1/16" (180mm)

5-3/8" (137mm)2-

9/16

" (6

5.8m

m)

1-11

/16"

(42.

5mm

)

3" (75.5mm)8" (203mm)

10-3/4" (272.4mm)

120VAC 3-13/16" (96.1mm)120VAC 1-7/16" (36.8mm)

13-5/16" (338.1mm)

Cond

ensa

te d

rain

por

t

GAS

COLD

HOT

6-1/

2" (1

65.3

mm

)

3-1/

4" (8

2.8m

m)

4-3/

16"

(106

.1m

m)

7-1/

16"

(179

.2m

m)

1/2" (13.3mm)

4-1/2" (113.7mm)4-3/4" (121.1mm)

5-1/16" (129.1mm)1-7/16" (36.8mm)

Bo om view Top view

OUTDOOR MODEL

Side viewFront view

13-7/8" (352mm)10" (254mm)

10-5/16" (262.2mm)

22-7

/8 (5

80m

m)

Gas 4/1/2" (113.7mm)

Hot 4-3/4" (121.1mm)

5-1/16" (129.1mm)Condensate drain port 7-1/16" (180mm)

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)

1" (25.5mm)

5-3/8" (137mm)7-1/16" (180mm)

5-3/8" (137mm)

2-9/

16"

(65.

8mm

)1-

11/1

6" (4

2.5m

m)

3" (75.5mm)8" (203mm)

10-3/4" (272.4mm)

120VAC 3-13/16" (96.1mm)120VAC 1-7/16" (36.8mm)

13-5/16" (338.1mm)

Cond

ensa

te d

rain

por

t

GAS

COLD

HOT

6-1/

2" (1

65.3

mm

)

3-1/

4" (8

2.8m

m)

4-3/

16"

(106

.1m

m)

7-1/

16"

(179

.2m

m)

1/2" (13.3mm)

4-1/2" (113.7mm)4-3/4" (121.1mm)

5-1/16" (129.1mm)1-7/16" (36.8mm)

Bo om view Top view

OUTDOOR MODEL

Flow Rate vs. Temperature RiseF

low

Rate

(gpm

)

1

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140

2

3

4

5

6

7

8

0

Temperature Rise (°F)

TRH1-02 (Revised 1/17)

Lochinvar, LLC 300 Maddox Simpson ParkwayLebanon, Tennessee 37090P: 615.889.8900 / F: 615.547.1000

Lochinvar.comANSI Z21.10.3 CSA 4.3

ASB -2.5M- 7/17 - Printed in U.S.A.