Brochure

SWH-02 (Reprint SWH-02 2/12)
FG-5M-7/12-Printed in U.S.A
300 Maddox Simpson Parkway, Lebanon, TN 37090 | 615-889-8900 | fax: [phone] | www.Lochinvar.com
Shield
tm
Water Heater Dimensions and Specifications
Shield
tm
Payback Calculator
> Low Gas Pressure Operation
> Direct-Spark Ignition
> Certified for Installation on Combustible Floors
> ASME Temperature and Pressure Relief Valve
> 8-Foot Power Cord
> 3-Year Limited Warranty
> 1-Year Parts Warranty
Optional Equipment
> Alarm Bell
> Concentric Vent Kit
> Condensate Neutralization Kit
> Low Water Cutoff
Standard Features
> 96% Thermal Efficiency
> Modulating Burner with 5:1 Turndown
> Operates at Temperatures up to 180˚F for
Sanitizing Applications
> Stainless Steel Heat Exchanger
> Glass-Lined Steel Tank
> 150 PSI Working Pressure
> ASME Construction (SNA285–500)
> Zero Clearances to Combustible Material
> PVC, CPVC, Polypropylene and Stainless
Steel Venting up to 100 Equivalent Feet
> Direct-Vent Sealed Combustion
> Brass Drain Valve
> Rooftop and Sidewall Venting
> Sidewall Vent Termination
> Room Air Venting up to 100 Equiv. Feet
> Advanced Electronic Control, with:
> 2-Line, 16-Character LCD Display
> Time Clock
> Night Setback
> Alarm Contacts
> Runtime Contacts
> Manual Reset High Limit
> 3 Water Temperature Sensors
> Flue Temperature Sensor
> Low-NOx Operation
Model Btu/hr Capacity GPH
@
First Gas Water Air Vent Shipping
Number Input (Gal) 100° Rise Hour A B D E F G H I J Conn. Conn.
Inlet Size Wt. (lbs.)
SNR150-100 150,000 93 175 249 80" 28" 44" 61-1/4" 73-3/4" 62-1/2" 68-3/4" 72-3/4" 74-1/4" 1/2" 1-1/2" 3" 3" 700
SNR200-100 199,999 93 233 307 80" 28" 44" 61-1/4" 73-3/4" 62-1/2" 68-3/4" 72-3/4" 74-1/4" 1/2" 1-1/2" 3" 3" 725
SNA285-125 285,000 125 332 432 80" 34" 32-3/4" 52-3/4" 75" 53" 59-3/4" 73-1/4" 70-1/2" 3/4" 2" 4" 4" 800
SNA400-125 399,999 125 465 565 80" 34" 32-3/4" 52-3/4" 75" 53" 59-3/4" 73-1/4" 73-1/4" 1" 2" 4" 4" 850
SNA500-125 500,000 125 582 682 80" 34" 32-3/4" 52-3/4" 75" 53" 59-3/4" 72" 75" 1" 2" 4" 4" 875
Change "N" to "L" for LP Gas. All information is subject to change. Electrical Requirements: 120VAC/60Hz/1 phase
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 $1.58 per therm.
Bottom line, these numbers show that because of its 96% efficiency and immunity to lime scale,
SHIELD will pay back the initial cost difference in energy savings alone in just 1.43 years!
SHIELD
™
WATER HEATER
STANDARD 80%
EFFICIENT UNIT
OPERATING COST
DIFFERENCE
EFFICIENCY OPERATING
COST
EFFICIENCY OPERATING
COST
YEARLY CUMULATIVE
Year 1
96% $7,930 75% $10,123
$2,193 $2,193
Year 2
96% $7,930 71% $10,769
$2,839 $5,032
Year 3
96% $7,930 66% $11,456
$3,527 $8,559
Year 4
96% $7,930 62% $12,188
$4,258 $12,817
Year 5
96% $7,930 58% $13,125
$5,195 $18,012
HLW
Model Number Guide
S N A 400 125
SHIELD
Btu/hr Input
Natural Gas
ASME Construction
SHIELD Water Heater
Natural Gas
ASME
400,000 Btu/hr Input
125 Gallon Tank
Tank Capacity