Carrier AquaForce 30XA Series Installation Instructions Manual page 112

30XA401, 451, 476, 501 Water Line Installation Options
The water lines for the standard coolers for the 401, 451, 476 and
501 unit sizes can be connected through the sections shown in the
dimensional drawings (Fig. 22, 25, 26, and 27).
If the water lines are connected to the coolers by means of elbows
(as shown in Fig. 35), then it is recommended to use 8 in. Victaulic
elbows and 8 in. Victaulic couplings to connect the water lines to
the cooler. It is also recommended to provide a break in the water
lines close to the cooler. This allows them to be uninstalled to give
room for removing the inlet and outlet water heads for cooler tube
cleaning if needed at a later stage.
For the 476 and 501 size units, if the water lines are connect-
ed by straight pipes coming from the side of the unit (Fig. 36)
then it is recommended to use two no. 13 Victaulic elbows
Fig. 35 — 30XA401, 451, 476, 501 Water Line Installation Using Elbows
Fig. 36 — 30XA476, 501 Water Line Connection Using 2 No. 13 Victaulic Elbows Per Line
(8 in., 11 /
1
4
that there is enough clearance from the economizer assembly
for installation. This offset is not required for the 401, 451
size units. For the 401, 451, 476 and 501 size assemblies it is
important to have a short break in the incoming and outgoing
water lines so that the cooler heads can be easily removed if
cleaning of cooler tubes is required in the future.
The above recommendations are also valid for the water inlet on
the minus one pass cooler options for the 401, 451, 476 and 501
size assemblies. The water outlet connection for the minus one
pass cooler options can only be made using an 8 in. Victaulic el-
bow. As mentioned above, keep a short break in the water line
close to the cooler so that the cooler heads can be easily removed
if cleaning of cooler tubes is required in the future.
from the Side of the Unit
112
degree elbows) per line to provide an offset so
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