AERCO CXT-E Retrofit Kit - Manual (Page 13)

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 13 of 76
FLANGE
GASKET
SPRING PLATE
ASSEMBLY
SPRING
VALVE PLUG
ASSEMBLY
HEX NUTS (4)
HOT WATER
OUTLET FLANGE
OUTLET
FLANGE
Figure 2-3. Anticipator Check Valve (Load Alert) Assembly
NOTE
For Water-to-Water Double-Wall Heater Models (WWDW-24, WWDW-45,
WWDW-68), the items removed in section 2.4 are located on the Shell of
the Heater instead of the Bottom Head. Therefore, refer to Figure 2-2 for
Water-to-Water Double-Wall Models.
2.4 REMOVAL OF ITEMS CONNECTED TO BOTTOM HEAD
In order to install several new ECS components, the Drain Ball Valve must be disconnected and
the Cold Water Inlet Orifice Disc replaced. The locations of these items are shown in Figure 2-1,
sheet 3. Proceed as follows:
1. Disconnect any external piping connected to the Cold Water Inlet and Drain Ball Valve
Outlet on the Bottom Head.
2. Locate the Orifice Disc in the Cold Water Inlet (Figure 2-1, sheet 3).
3. Using a pair of pliers, disconnect the snap ring securing the Disc in the Bottom Head.
4. Remove the clip and the Orifice Disc from the Bottom Head. This Orifice Disc will be
replaced in Section 4 with a new Disc provided in the Retrofit Kit.
5. Next, temporarily remove the Drain Ball Valve from the Bottom Head (Figure 2-1, sheet 3).
Retain this Ball Valve for reinstallation in Section 4.