ECOSTOR2™ SC SOLAR INDIRECT SYSTEM SINGLE COIL ECO-DEFENDER GAS BACKUP MODELS (CLOSED LOOP)

The Eco-Defender gas backup models also utilize some of the same design features as the atmospheric vent models but incorporate the latest advances in technology and components to meet the most stringent air quality requirements for allowable NOx emissions in the country. With 75% less NOx emissions and efficient water heating from the sun, these models have the most ecologically friendly features for any solar water heating application in the industry.

Product Highlights
ICON
Defender
Integrated Mixing Device
Hydrojet
Brass Drain Valve
Vitraglas<sup>®</sup>

Features

Standard Features

  • Backup Ultra Low NOx Burner
  • 1½" O.D. Glass Coated(Vitraglas®) Carbon Steel Heat Exchanger Coil
  • Sensor Wires for Solar Thermistor Connections
  • Natural Gas Only
  • Integrated Mixing Device
  • Honeywell Self Diagnostic Gas Control
  • Advanced ScreenLok® Technology Flame Arrestor Design
  • Maintenance Free
  • Resettable Thermal Switch
  • Factory Installed Hydrojet® Total Performance System
  • Vitraglas® Lining
  • 2" Non-CFC Foam Insulation
  • ¾" NPT Factory Installed Dielectric Waterway Fittings
  • ¾" NPT Supply and Return Connections
  • Two Protective Anode Rods
  • T&P Relief Valve
  • Brass Drain Valve
  • Meets SCAQMD Rule 1121 (10ng/J NOx limit)

Model Numbers

S-DW4-U5036FRN 45 Gallon Capacity Tall
S-DW2-U65T6FRN 60 Gallon Capacity Tall

 

Product Literature

Click the links below to download the PDF files
ECOSTOR2™ SC SOLAR INDIRECT SYSTEM
SINGLE COIL ECO-DEFENDER GAS BACKUP MODELS
MODEL NUMBERS
S-DW4-U5036FRN S-DW2-U65T6FRN
Spec Sheet
Parts List
Operation Manual
Service Manual
Winter / Summer Optional Kit
Setback Control Supplement
509-B 48223-A 238-44219-00J
238-47632-00B
238-47870-00C
Coming Soon 47683A 48930A