He- 111 − disassembly and reassembly – AERCO SWDW68 U-Tube Double-Wall Heaters w/ECS User Manual
Page 85
HE-
111 − DISASSEMBLY AND REASSEMBLY
Rev B Mar 2013
9-5
c. Reassemble the studs, lifting lugs (11), and nuts (18) into the head and shell flanges. Tighten the
nuts in the same manner as outlined in step 3d above.
d. Replace the water solenoid valve (2), if any, the relief valve (1), and all piping. Reconnect all
connecting wiring, if any, required for accessories on the upper head assembly. Replace the
thermocouple into its proper locations in the upper head assembly.
7. Reinstall the circulation piping.
8. Reconnect the pressure gauge to the Steam Input flange.
9. Reconnect any power supply wiring to the heat exchanger Control Box, and reconnect any wiring
between the Control Box and any solenoid valves included in the system.
10. Reconnect all external piping to the heat exchanger upper head assembly, including the piping to the
relief valve (1) and the water solenoid valve (2).
11. Refill and put the heat exchanger back into service in accordance with 5.3, steps 1 through 15.