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CVHE-SVN02D-EN
Water Piping
Evaporator and Condenser
Water Piping
Figures 3 and 4 illustrate the typical
water piping arrangements
recommended for the evaporator
and condenser.
Note: It is strongly recommended
that the piping contractor refrain
from piping closer than 3' [.91 m]
minimum to the equipment. This will
allow for proper fit-up upon arrival of
the unit at the job site. Any
adjustment that is necessary can be
made to the piping at that time.
Expenses that result from a failure to
follow this recommendation will not
be paid by Trane.
Water piping connection sizes are
identified in Tables 1, 2 and 3.
Remember that with many
waterboxes the entering and leaving
evaporator water can be piped to
either water box connection when
the tube bundles are split vertically.
However, large evaporator
waterboxes, with entering and
leaving connections not at the same
level, must be connected with the
entering water at the bottom of the
leaving water at the top.
Note: Assure that the evaporator
water piping is clear, check it after
the chilled water pump is operated
but before initial chiller start-up. If
any partial blockages exist, they can
be detected and removed to prevent
possible tube damage resulting from
evaporator freeze-up or erosion.
Note: For condenser and large
evaporator connections, arrange the
water piping so that the water supply
enters the shell at the lower
connection, and exits from the top
connection. (Operational problems
may result if this is not obeyed)
Some shells may be piped as
desired since both connections are at
the same level. Ref. Fig. 2.
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