Edwards TCU 40/80

11. Gently slip the replacement coil onto enclosing tube of solenoid valve body.
12. Pull the base assembly wiring through conduit hole and slip on the strain relief retaining nut.
13. Attach the ground wire to coil.
14. Strip the ends of all wires on base assembly and solenoid valve coils.
15. Crimp on the butt wire splices.
16. Tighten the strain relief retaining nut.
17. Install the original junction box cover and fasten attachment screw.
18. Install the spacer cup.
19. Install and tighten the lock nut.
20. Verify the coil junction box is labeled SV1.
21. Repeat the procedure for Hot Gas Bypass solenoid valve coil (SV2).
22. Discard the old solenoid coils.
23. Perform the System Check procedure.
Retaining nut
Junction box cover
Ground screw
Lock nut
Spacer cup
Figure 12 - Solenoid coil replacement
TCU 40/80 Temperature Control Unit
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