Product Overview

Optional Equipment
> Alarm Bell
> Concentric Vent Kit
> Condensate Neutralization Kit
> Low Water Cutoff
> Tank Side Tappings for Alternate Heat Source
Change N to L for LP gas. Field convertible to LP Gas *A = ASME Construction Electrical Requirements: 120 VAC/60Hz/Phase All Information is subject to change.
SWH-03 (Reprint 10/13)
PDP-5M-3/14-Printed in U.S.A.
Shield
tm
Water Heater Dimensions and Specifications
Shield
tm
Payback Calculator
> Enable/Disable Contacts
> Low-NOx Operation, meets SCAQMD Rule 1146.2
> Low Gas Pressure Operation
> Direct-Spark Ignition
> Full Port Brass Drain Valve
> 8-Foot Power Cord
> 3-Year Limited Warranty
> 1-Year Parts Warranty
Standard Features
> 96% Thermal Efficiency (AHRI Certified)
> Modulating Burner with 5:1 Turndown
> Operates at Temperatures up to 180˚F for
Sanitizing Applications
> Stainless Steel Heat Exchanger
> Glass-Lined Steel Tank
> Magnesium Anode Rods
> 150 PSI Working Pressure
> ASME Construction (SNA151–501)
> ASME Temperature and Pressure Relief Valve
> Zero Clearances to Combustible Material
> Certified for Installation on Combustible Floors
> PVC, CPVC, Polypropylene and Stainless Steel
Venting up to 100 Equivalent Feet
> Direct-Vent Sealed Combustion
> Rooftop and Sidewall Venting
> Sidewall Vent Termination
> Advanced SMART CONTROL, with:
> LCD Display
> Time Clock
> Night Setback
> Alarm Contacts
> Runtime Contacts
> Manual Reset High Limit
> 3 Water Temperature Sensors
> Flue Temperature Sensor
> Contacts for Louvers
> Adjustable Pump Delay
> Security Protection
Model Btu/hr Capacity GPH
@
First Gas Water Air Vent Shipping
Number Input (Gal) 100° Rise Hour A B D E Conn. Conn.
Inlet Size Wt. (lbs.)
SNR126-065 125,000 65 145 197 60-1/4" 28" 29-1/2" 45-1/4" 1/2" 1-1/2" 3" 3" 377
SNR151-100 150,000 90 175 247 75-1/2" 28" 44" 59-1/2" 1/2" 1-1/2" 3" 3" 700
SNR201-100 199,999 90 233 305 75-1/2" 28" 44" 59-1/2" 1/2" 1-1/2" 3" 3" 725
SNA151-100* 150,000 90 175 247 75-1/2" 28" 44" 59-1/2" 1/2" 1-1/2" 3" 3" 700
SNA201-100* 199,999 90 233 305 75-1/2" 28" 44" 59-1/2" 1/2" 1-1/2" 3" 3" 725
SNA286-125* 285,000 120 332 428 75-1/2" 34" 31" 49" 3/4" 2" 4" 4" 800
SNA401-125* 399,999 120 465 561 75-1/2" 34" 31" 49" 1" 2" 4" 4" 850
SNA501-125* 500,000 120 582 678 75-1/2" 34" 31" 49" 1" 2" 4" 4" 875
SHIELD™ innovation makes the difference! The following estimated comparisons show the effects of lime scale buildup on thermal efficiency
and yearly operating cost for the 96% efficient SHIELD and a standard 80% efficient tank-type commercial water heater. Comparison is based
on 200,000 Btu/hr units delivering 2,000 gallons of hot water per day, 365 days per year, at an 80°F temperature rise, with a natural gas rate of
$1.22 per therm. (Based on DOE Energy Guide price per therm).
Bottom line, these numbers show that because of its 96% efficiency and lime scale free performance, SHIELD will pay back the initial cost difference in
energy savings alone in less than 1.5 years!
SHIELD WATER HEATER STANDARD 80% EFFICIENT UNIT OPERATING COST DIFFERENCE
Efficiency Operating Cost Efficiency Operating Cost Yearly Cumulative
Year 1 96% $6,123 72% $8,164 $2,041 $2,041
Year 2 96% $6,123 65% $9,043 $2,920 $4,961
Year 3 96% $6,123 58% $10,134 $4,011 $8,972
Year 4 96% $6,123 52% $11,304 $5,181 $14,153
Year 5 96% $6,123 47% $12,506 $6,383 $20,536
126-65 151-100 201-100 286-125 401-125 501-125
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Lochinvar, LLC
300 Maddox Simpson Parkway
Lebanon, Tennessee 37090
P: 615-889-8900 / F: 615-547-1000
www.Lochinvar.com
HLW
SHIELD Water Heater
Natural Gas
ASME
400,000 Btu/hr Input
125 Gallon Tank
Model Number Guide
S N A 401 125
SHIELD
Btu/hr Input
Natural Gas
ASME Construction
Tank Capacity