Lochinvar ETN076 User Manual
Energy Saver Models
Lochinvar’s Residential Gas models are available in capacities of 30, 40,
50, 65, 75 & 100 gallons in tall and short configurations. All models
meet or exceed the NAECA and/or ASHRAE Energy Efficiency Standards.
Standard Features
• Shield Flammable Vapor Ignition Resistant (FVIR) Combustion System
Corrosion resistant chamber redirects air through a stainless steel flame
arrestor plate to prevent flame rollout and flammable vapor ignition. A
resettable thermal switch shuts down the burner and pilot operation in the
event of a flammable vapor ignition and also protects against lint, dust and
oil buildup by shutting down when it detects significant air restriction.
• Piezo Ignitor - provides easy pilot ignition with the push of a button
(Shield Combustion System models only).
• Sight Glass - Provides unobstructed view into the combustion chamber
for observation of burner and pilot flames
(Shield Combustion System models only).
• Low NOx Burner - This whisper quiet, 360° burner incorporates
aluminized steel into its die-formed design. The large burner diameter
transfers more heat, while providing clean and efficient combustion.
Satisfies local codes and emissions standards.
• Non-CFC Foam Insulation - Improved formulation provides
uniform tank coverage with a thick blanket of insulating foam.This
non-CFC polyurethane closed cell foam minimizes standby losses
and maximizes heat retention.
• Glass-Lined Steel Tank - The tank is automatically formed, rolled,
and welded to ensure a continuous seam for the glass lining. The
durable glass lining is fused to the interior of the tank at 1600°F to
assure lasting protection against rust and corrosion while providing
clean, clear hot water.
• Magnesium Tank Saver Anode - High capacity anode rod provides
protection from the effects of electrolytic corrosion.
• Adjustable Thermostat - This accurate control provides an easy way
to reset water temperature for best economy. Automatic over-heat safety
device is standard.
• Heat Traps - Factory installed, minimizes heat loss through piping.
• Dielectric Nipples - Factory installed waterways protect the tank from
the corrosive action between dissimilar metals, while providing piping
convenience.
• Side Connections for Space Heating - select models are equipped with
side tappings for space heating applications.
• Temperature & Pressure Relief Valve
• Brass Drain Valve
• 6 Year Limited Warranty*
(See warranty for details)
• 10 Year Extended Warranty Available
(In residential applications)
Residential Gas
Water Heaters
* 3 year limited warranty on tank and 1 year limited warranty on Parts
when installed in commercial applications
Residential Gas Water Heater Dimensions and Specifications:
B
FOR EASE IN ORDERING
BY MODEL NUMBER
L S N 030 G
Residential Gas
Short
This is a short residential
natural gas 30 gallon
water heater that meets
NAECA energy efficiency standards.
Natural Gas
Gallon Capacity
Natural Gas LP Gas 1st
Model Gal. Input GPH @ Input GPH @ Hour Energy Water Vent Ship.
Number Cap. Btu/Hr 90°F Rise Btu/Hr 90°F Rise Gals. Factor A B D E F G H I Conn. Size Wt.
Energy Saver Series - Short Models
LSN030G 30 30,000 31 26,000 27 51 0.61 45-3/4” 18” 48-1/2” 38-3/4” 13” - - 8” 3/4” 3” 100
LSN041G 40 40,000 41 38,000 39 68 0.59 47-1/4” 20” 50” 41” 13” - - 8” 3/4” 3” 128
Energy Saver Series - Tall Models
LTN030G 30 32,000 33 31,000 32 51 0.61 56-1/4” 16” 59-1/4” 49-3/4” 13” - - 8” 3/4” 3” 105
LTN040G 40 34,000 35 34,000 35 63 0.59 56-1/2” 18” 59-1/2” 50” 13” - - 8” 3/4” 3” 120
LTN041G 40 40,000 41 38,000 39 72 0.59 57-1/4” 18” 61-1/4” 50” 13” - - 8” 3/4” 3” 129
LTN050G 50 40,000 42 36,000 38 80 0.58 57” 20” 59-1/2” 50” 13” - - 8” 3/4” 3” 145
LTN065G*† 65 65,000 68 63,000 66 120 0.55 59-3/4” 24” 63-1/4” 53-1/2” 12-1/4” 13-1/2” 53-1/2” 11” 3/4” 4” 210
ETN076†# 75 76,000 82 76,000 82 134 N/A 59” 24” 62-1/2” 51-3/4” 15” 16-1/2” 51-3/4” 11” 1” 4” 238
ETN100*†# 100 85,000 92 88,000 95 162 N/A 65” 28-1/4” 68-3/4” 59-1/4” 15-3/4” 17-3/4” 50-3/4” 16” 1-1/4” 4” 420
High Input Models
LTN040G-4 40 50,000 53 48,000 50 74 0.59 57-1/2” 18” 60-3/4” 51-1/2” 13” - - 8” 3/4” 4” 127
LTN050G-4 50 50,000 53 48,000 50 86 0.58 56” 20” 58-1/2” 50” 13” - - 8” 3/4” 4” 150
LTN051G*† 48 65,000 67 61,000 63 87 0.58 56” 22” 59-1/4” 50” 13” 13-1/2” 50” 11” 3/4” 4” 164
High Efficiency Models
LTN030G-EF†* 30 32,000 34 31,000 33 51 0.62 56-1/2” 18” 59” 49-3/4” 13” - - 8” 3/4” 3” 109
LTN040G-EF†* 40 40,000 43 36,000 38 63 0.62 56-3/4” 20” 59” 50” 13” - - 8” 3/4” 3” 125
LTN050G-EF†* 50 40,000 43 36,000 38 80 0.62 57” 22” 59” 50” 13” - - 8” 3/4” 3” 150
Notes: “N” indicates Natural gas, replace “N” with “L” to indicate LP gas model.
All gas connections are 1/2” NPT
† Indicates models equipped with side tappings for space heating applications.
* Indicates models with 2” of foam insulation (ETN076 has 1 1/4” insulation)
# Indicates models not equipped w/ heat traps
Models fired above 75,000 Btu/Hr are certified to ANSI Z21.10.3. and are not required to meet the NAECA or FVIR standard.
Performance data is based on manufacturer’s test results.
FVIR &
NAECA Compliant
Certified for Potable Water and Space Heating Applications
This water heater is suitable for water heating and space heating.
Toxic chemicals, such as those used for boiler water treatment shall
NEVER be introduced into this system. This water heater may
NEVER be connected to any existing heating system or components
previously used with non-potable water heating appliances.
Lochinvar Corporation • 300 Maddox Simpson Pkwy • Lebanon, TN 37090 • 615-889-8900 / Fax: 615-547-1000
www.Lochinvar.com
RG-05 (Relaces RG-04 1/11)
PDP-5M-4/11-Printed in U.S.A.
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