AERCO Packaged WaterWizard Steam-to-Water Heater - Manual (Page 33)

1B+ II Water Wizard Water Heaters
HE-110
Installation, Operation & Maintenance Manual OMM-0063_0C
MC2: 07/26/13 Page 33 of 50 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288
10.6. REMOVING THE HEATER SHELL
Remove the Heater Shell as follows:
10.7. REMOVING COILS AND RISERS
The Coil Assemblies, Riser and Condensate Return are removed as follows:
Heater Shell Removal Instructions
1) Using a black marker, mark the edge of the Heater Bottom Head flange and Shell flange in order to
indicate their correct relative positions upon reassemble. The Top Head can remain attached to the
Shell.
2) Using the 1-1/16” combination wrench, unbolt the sixteen studs and nuts around the bottom ring of the
Shell. The two nuts located in-line with the mounting skid legs are to be removed with the stud left in
place.
3) Attach a chain hoist to the two lifting lugs on the Top Head. Lift the Shell up to clear the internal coil
bundle.
4) Using a light source, visually inspect the inside of the Heater Shell for evidence of damage to the
Copper Shell Liner. If any area of the Copper Liner is damaged, replace the Shell down on the Bottom
Head and contact your local AERCO Representative to process return of the Heater to AERCO for
repair.
5) Move the heat exchanger bundle a few feet to the side so that the Shell can be lowered to the floor.
Set the Shell on clean surface. Use care to avoid damaging the bottom edge of the Copper Shell Liner.
Removal of Coils and Risers Instructions
1) Using the proper size open-end wrench, loosen the two Union Nuts securing the Coils to the
Steam Riser and Condensate Return.
2) Using a pipe wrench, remove the Steam Riser and Condensate Return from the Bottom Head.