ECS & CXT-E Control Valve Retrofit for SW Double Wall Heaters
Technical Instruction Document
TID-0140_0A
12/30/2014
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, New York 10913
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Phone: 800-526-0288
Page 30 of 58
4. INSTALLATION OF RETROFIT KIT ITEMS
When installing the new Electronic Control Valve Actuator and Electronic Control System (ECS)
Control Box, a number of ancillary items must also be installed or replaced. These include a
replacement Water Solenoid Valve and several Temperature Sensors.
4.1
INSTALLATION OF CONTROL VALVE ACTUATOR AND LINKAGE ASSEMBLY
Identical Actuator Assemblies, part no. 69170 are used on all AERCO Control Valve sizes from 1
inch to 4 inches. However, there are two types of Linkage Assemblies designated part no. 24038-
1 and -2 used with different sizes of AERCO Control Valves. Linkage Assembly, part no. 24038-1
is used on AERCO Valve sizes ranging from 1 inch to 3 inches. The 24038-2 Linkage Assembly is
used only on 4 inch Valves. The primary difference between these two assemblies is the Linkage
Assembly Adapter shown in Figure 4-1. In addition, the linkage pin location for 24038-1
assemblies will vary for 1 to 2 inch Valves and for 2 ½ to 3 inch Valves as shown in the upper
portion of Figure 4-1. (AND FOLLOWING)
Figure 4-1. Linkage Assemblies Part No. 24038-1 & 24038-2
The installation procedures for the Linkage Assembly and Actuator Assembly are provided in
paragraphs 4.1.1 and 4.1.2 which follow.
ADAPTER
PART NO. 24038-1
(FOR 1 TO 3 IN. VALVES)
USE THIS PIN
LOCATION FOR
4 IN. VALVES
USE THIS PIN
LOCATION FOR
1 - 2 IN. VALVES
ADAPTER
PART NO. 24038-2
(FOR 4 IN. VALVE ONLY)
13 - 3/8 IN.
4–1/2 IN. x
1-15/16 IN. WIDE
USE THIS PIN
LOCATION FOR
2 -1/2 & 3 IN.
VALVES
INDICATOR
PLATE
INDICATOR
PLATE