ECS Upgrade for SW Double Wall Heaters, Kits 27035, 27036, 27037
Technical Instruction Document
TID-0142_0A
12/30/2014
AERCO International, Inc.
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100 Oritani Dr.
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Blauvelt, New York 10913
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Phone: 800-526-0288
Page 4 of 24
1.2
Tools & Supplies Required
The following tools are required to perform the retrofit procedures specified in this document:
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Combination Wrenches: 7/16”, 9/16”, 5/8”, 13/16”, 1-1/16”, 1-1/8”, 8 mm
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Pipe Wrenches: 12”, 24”
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Plumbers tools to handle pipe sizes up to 3”
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Vise-Grip Pliers
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Flat Tip Screwdriver, 1/2” Blade
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Phillips Head Screwdriver, No. 3
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Brass Wire Brush
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Needle Nose Pliers
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Tape Measure
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Black Marker
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Loctite 565 or equivalent
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Manufactures’ installation instructions referenced in text
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Brazing equipment for assembling P/N 97049 (if burn permit available)
1.3
Upgrade Kit Contents
The contents of the Upgrade Kits, P/N 27035, 27036, and 27037 are included in Appendices A
through C at the end of this document.
2. EQUIPMENT ISOLATION AND REMOVAL PROCEDURES
Figure 1 shows component locations for a typical Double-Wall, Model DW-24. The actual size and
location of affected components and assemblies may vary, depending on Packaged Water Heater
model and size. Refer to the applicable AERCO Heat Exchanger Manual provided with your
installation for additional details.
