036-33072-001 Rev. A (0601)
8
Unitary Products Group
FIGURE 4 : DIMENSIONS CU240/CU300
WATER PIPING
All factory installed water piping terminates inside the unit.
Multi-condenser units feature manifolded single water in and
out connections.
Note: Water connection fittings are threaded copper. Use
caution when tightening steel pipe into copper fittings. Always
use a backing wrench on the hex fittings inside the unit.
It is recommended that flexible connectors be provided on
the water supply and return lines if noise and vibration trans-
mission could be a problem.
Water piping should include shutoff/balancing valves so that
the unit can be serviced without shutting down and draining
the entire water supply circuit. Since units are piped in paral-
lel piping circuits, the shutoff valves may be used to equalixe
the pressure drop to each branch for even condenser water
distribution. A bibcock or a plugged tee fitting should be
installed between the shut-off valves and the unit in both the
inlet and outlet pipes. These connections are to provide for
acid cleaning of the condenser, if this should become neces-
sary.
