AERCO Packaged WaterWizard Steam-to-Water Heater - Manual (Page 30)

HE-110
1B+ II Water Wizard Water Heaters
OMM-0063_0C Installation, Operation & Maintenance Manual
Page 30 of 50
MC2: 07/26/13 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288
10.3. DISCONNECTING THE HEATER FROM THE FACILITY
To disconnect the Heater from the facility piping and wiring connections, proceed as follows:
Disconnecting the Heater from the Facility Instructions
1) First, check the ceiling height to determine if the Heater Shell and Top Head can be hoisted
up with the Heater remaining in position.
2) If there is sufficient ceiling clearance to permit safe elevation of the Shell assembly, skip to
step 8. If there is insufficient clearance, proceed to step 3 to remove the Heater from its
current location.
3) Using a 5/8” combination wrench, remove the Steam Pressure Line from the Steam Line and
Pressure Gauge.
4) Disconnect the Steam line from the Valve and Bottom Head.
5) Disconnect the water inlet from the Bottom Head.
6) Disconnect the drain line from the Bottom Head.
7) Disconnect the Condensate Drain piping from the Bottom Head.
8) Disconnect all electrical wires to the Control Box. Also, disconnect all wiring between the
Control Box and any external Solenoid Valve(s).
9) Using a 5/8” combination wrench, remove the Steam Pressure line from the Steam Line and
Pressure Gauge, if it was not performed in step 3.
10) Remove the water outlet piping from the Top Head.
11) Remove the pipe drain(s) from the Pressure Relief Valve(s).
12) Disconnect the pipe drain from the Water Solenoid Relief Valve.
13) Using a 13/16” combination wrench, disconnect the compression fittings on the Cold Water
Feed Tube from the Top Head and Bottom Head.
14) If controlled by a Pneumatic Valve, disconnect the incoming air supply to the Control Box and
Steam Valve.
15) If controlled by a Self-contained Valve, remove the thermal well from the Top Head that is
attached to the Valve.