AERCO CXT-E Retrofit Kit - Manual (Page 5)

ECS and CXT-E Retrofit Instructions Kit # 27004-TAB
Technical Instruction Document TID-0141_0A
12/30/2014 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288 Page 5 of 76
2. EQUIPMENT ISOLATION AND REMOVAL PROCEDURES
The locations of the major items to be removed from an AERCO Indirect Fired Water Heater are
shown in Figures 2-1 (Helitherm Models) and 2-2 (Double-Wall Models). These items include:
• Currently Installed Control Valve Actuator (Pneumatic, Self-Contained or Electro-
Hydraulic)
• Control Box
• Top Head Solenoid Valve
• Thermal Element
• Shunt Tube
• Temperature Gauges & Capillaries
• Existing Feedback Sensor
• Load Alert Components (Except for Units With Electro-Hydraulic Valves)
In addition to the items listed above, the Drain Ball Valve (if installed) and Cold Water Inlet piping
will be temporarily disconnected to permit installation of a Flow Meter and Orifice Disk.
NOTE
Figure 2-1 shows the locations of the affected components and
assemblies for a typical Helitherm, Model SW1B-Plus II Water Wizard
installation. Figure 2-2 shows component locations for a typical Water-to-
Water Double-Wall, Model WWDW-24.
The actual size and location of affected components and assemblies may
vary, depending on Packaged Water Heater Model, size, and type of
Control Valve being retrofitted. Refer to the applicable AERCO Heat
Exchanger Manual provided with your installation for additional details.