AERCO Packaged WaterWizard Steam-to-Water Heater - Manual (Page 42)

HE-110
1B+ II Water Wizard Water Heaters
OMM-0063_0C Installation, Operation & Maintenance Manual
Page 42 of 50
MC2: 07/26/13 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288
12.4. Hydrostatically Testing Coils & Risers
Test the Coils and Risers hydrostatically as follows:
12.5. Anticipator Check Valve Reassembly
Reassemble the Anticipator Check Valve assembly as follows:
Hydrostatically Testing Coils & Risers
1) Install fittings into the inlet and outlet of the Bottom for the Risers that can supply a hydrostatic
pressure source.
2) One fitting should have a valve for the release of internal air pressure.
3) The other fitting should be attached to a source to apply the maximum allowable working
pressure, (MAWP) to the internal Coil and Riser Bundle.
4) Apply MAWP to the Coil Bundle.
5) Close off both inlet and outlet valves to retain the internal pressure for 20 minutes.
6) If leaks are detected, remove the internal pressure.
7) Remove the leaking Coil and inspect for causes for leak.
8) If the leak is due to debris, clean the Coil and reinstall.
9) If there are damages to any surfaces, contact your AERCO Representative for instruction for
returning the failed Coil.
Anticipator Check Valve Reassembly
1) Insert the Valve Plug (36), the Washer (35), the Spring (34), and the Gasket (32). AERCO
recommends that a new Gasket (32) be use whenever the Check Valve is reassembled.
2) Insert the Spring Plate Assembly (33), taking care to center it as closely as possible.
3) Line up the Outlet Flange (31) on the Studs (50) in the Heater top head, making sure that the
Spring Plate Assembly (33) is centered in its groove in the bottom of the Outlet Flange (31).
4) Replace the Nuts (51) and tighten the Outlet Flange (31) leak-tight to the Heater top head.
5) If this is the only reassembly operation, reconnect the hot water outlet piping union and place
the Heater back into operation in accordance with Steps 1, 12, and 13 under OPERATING
PROCEDURES above.