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