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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
•
Phone: 800-526-0288
Page 12 of 58
2.6
ELECTRO-HYDRAULIC CONTROL VALVE ACTUATOR REMOVAL
Refer to Figure 2-4 (following) and remove the Control Valve Actuator as follows:
1. Disconnect the electrical connectors from the Actuator.
2. Loosen the Upper Hex Nut above the Lower Crossbar shown in Figure 2-4.
3. While holding the Lower Shaft with a pair of pliers, completely remove the Upper Hex Nut.
4. Remove the four hex head bolts securing the Electro-Hydraulic Actuator to the Valve Top.
5. Lift the entire Actuator off the Valve Top. Also, remove the Actuator Gasket.
PNEUMATIC
ACTUATOR
VALVE
BODY
SEE
DETAIL “A”
VALVE
BODY
UPPER
HEX NUT
LOWER
HEX NUT
VALVE TOP
ACTUATOR
GASKET
HEX HEAD
BOLTS (4)
LOWER
CROSSBAR
DETAIL “A”
Figure 2-4. Electro-Hydraulic Control Valve Actuator Removal