ECS & CXT-E Control Valve Retrofit for SW Double Wall Heaters
Technical Instruction Document
TID-0140_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 58
1.2
TOOLS & SUPPLIES REQUIRED
The following tools are required to perform the retrofit procedures specified in this Service
Bulletin:
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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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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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Locktite 565 or equivalent
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Manufactures’ installation instructions referenced in text
1.3
RETROFIT KIT CONTENTS
The contents of the Retrofit Kits, Part No. 27004-6-TAB, 27004-6-TAB, and 27004-6-TAB are
included in Appendices A through C of this Bulletin. The contents included in these Appendices
are as follows:
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Appendix D: Lists Valve Kits required for previously installed Pneumatic and Electro -
Hydraulic Actuators
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Appendix E: Valve Kits for previously installed Self-Contained Actuator
WARNING!
HIGH VOLTAGE OF 120 VAC IS USED IN AERCO INDIRECT FIRED
WATER HEATERS. USE EXTREME CARE WHEN ACCESSING
CIRCUITS AND ELECTRICAL CONNECTIONS WITHIN THE
EQUIPMENT. SERIOUS PERSONAL INJURY OR DEATH MAY
OCCUR IF THIS WARNING IS NOT OBSERVED. FOLLOW OSHA
APPROVED LOCKOUT/TAGOUT PROCDURES.