7
7. Repeat steps 2 and 3 for 2nd top section on NC8411 through NC8414
models.
8. Repeat steps 4 through 7 for any remaining cells.
9. Attach your cold water supply piping to the cold water basin outlet connec-
tion in accordance with drawing instructions, utilizing gaskets provided.
Do not support your pipe from the tower or outlet connection—
support it externally.
Normally, one of the following three outlet arrangements is provided:
Case face connection:
This is a factory-installed, galvanized pipe nipple,
extending horizontally from the side of the cold water basin. It is both beveled
for welding—and grooved for a mechanical coupling. If a weld connection is
used, it is recommended that the weld area be protected against corrosion.
Cold galvanizing is suggested, applied according to the manufacturer’s
instructions.
Bottom outlet connection:
This is a factory-installed, circular opening
in the cold water basin floor of one or more cells. An appropriately-sized
circular opening has been provided to accept a 125# ANSI B16.1 flat-face
flange connection.
Side outlet sump connection:
Unless otherwise specified, sumps are
manufactured of heavy duty FRP (fiber-reinforced polyester) construction.
Because of their size, they are attached upside down in the basin to pre-
vent damage in shipment. They must be inserted into the square opening
prepared in the floor of the cold water basin of one or more cells—sealed
against leakage, and attached by machine bolts, according to the installa-
tion drawing included. An appropriately-sized circular opening in the vertical
face of the sump has been provided to accept a 125# ANSI B16.1 flat-face
flange connection.
10. Attach makeup water supply piping to appropriately-sized float valve con-
nection located in cold water basin side wall. Install the drain and overflow
according to the “NC Field Installation Manual”
Assembly Instruction
s.
If you wish to pipe overflow and drain water to a remote discharge point,
make those connections at this time also.
11. Attach your warm water return piping to the inlet connections of the
tower.
Caution
installation
➠