Powers ETV400 Emergency Tempering Valves with Internal Cold Water Bypass - Manual (Page 3)

Index Description
Part No.
ETV200 ETV400
1 Temperature Adjustment Screw 390 777 390 787
2 Adjustment Locking Screw 390 795 390 795
3 Actuator 390 808 390 810
4 Plunger Kit 390 802 390 803
5 Spring 390 620 390 162
6 O-Ring 1101575 2101003
7 Checkstop Rebuild Kit 390 800 390 801
ETV500
Index Description Part No.
1 Temperature Adjustment Screw 390 787
2 Adjustment Locking Screw 390 795
3 Actuator Kit 390 815
4 Plunger Kit 390 816
5 Spring 390 162
6 O-Ring 2101003
7 Checkstop Rebuild Kit 390 811
3
Disassembly
1. Close supply valves and/or checkstops
2. Remove valve from its outlet piping. Work should be performed on a
clean table or workbench.
3. To remove thermal actuator from top
a) Loosen adjustment locking setscrew.
b) Remove bonnet and overload assembly.
c) Lift out thermal actuator.
d) Assemble in reverse order
4. To remove the plunger assembly from bottom
a) Remove the bottom cap.
Spring is under tension.
b) Pull out spring
c) Pull out plunger using a pair of pliers.
d) Reassemble in reverse order.
After reassembling go back to thermal actuator section and make sure it
is sitting in its holder properly.
Inspection
1. Inspect body for any damage, deposits or pitting. Clean or replace as
necessary.
2. Check the actuator for proper operation at room temperature. Hold
actuator between your finger and thumb. Apply force on end of stem.
Measure the entire length of the actuator and then place it in the hot
water (105-110°F) for 10 seconds. Actuator stem should extend at
least 1/8" longer than when at room temperature.
Due to the safety nature of this product, we recommend
removal of the valve by a licensed contractor and full
inspection of all components whenever the valve is disas-
sembled for any reason. Temperature must be checked and
adjusted. For temperature adjustment see Adjustment &
Testing section.
Disassembly and Inspection
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ETV 200
ETV 400
ETV 500 Parts List
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NOTICE
CAUTION !