Evaporator Piping; Drainage - Trane CGAM Installation & Operation Manual

Installation - Mechanical
Table 21. Point Weights (lbs) - 50 Hz - with pump package and buffer tank options
Size
20 ton
26 ton
30 ton
35 ton
40 ton
52 ton
60 ton
70 ton
80 ton
90 ton
100 ton
110 ton
120 ton

Evaporator Piping

Evaporator water connections are grooved.
Thoroughly flush all water piping to the CGAM unit before making the final piping connections to
the unit.
Components and layout will vary slightly, depending on the location of connections and the water
source.
Equipment Damage!
If using an acidic commercial flushing solution, construct a temporary bypass around the unit to
prevent damage to internal components of the evaporator and the pump.
Proper Water Treatment!
The use of untreated or improperly treated water in a Chiller may result in scaling, erosion,
corrosion, algae or slime. It is recommended that the services of a qualified water treatment
specialist be engaged to determine what water treatment, if any, is required. Trane assumes no
responsibility for equipment failures which result from untreated or improperly treated water, or
saline or brackish water.

Drainage

Locate the unit near a large capacity drain for water vessel drain-down during shutdown or repair.
Evaporators are provided with drain connections. Refer to "Water Piping. " All local and national
codes apply.
A vent is provided on the top of the evaporator at the chilled water inlet. Be sure to provide
additional vents at high points in the piping to bleed air from the chilled water system. Install
necessary pressure gauges to monitor the entering and leaving chilled water pressures.
52
Without partial heat recovery
1 2 3
454 439 1601
472 453 1624
676 563 1832
685 566 1869
807 753 2057
824 784 2070
733 685 1104
730 694 1108
1842 1909 1247
1915 2006 1274
1929 1901 1285
1943 1925 1293
1740 1948 1723
CAUTION
CAUTION
Isolator location
4 5 6 1
1532 - - 461
1540 - - 478
1594 - - 686
1618 - - 695
1945 - - 800
1985 - - 817
1035 1688 1587 723
1057 1705 1631 719
1293 868 900 1887
1336 875 919 1947
1856 1255 1236 2025
1877 1261 1248 1836
1931 1163 1305 1771
With partial heat recovery
2 3 4 5
450 1602 1554 -
464 1625 1562 -
583 1831 1615 -
586 1868 1639 -
746 2113 2000 -
776 2126 2041 -
674 1116 1047 1740
683 1120 1070 1757
1954 1279 1324 891
2038 1309 1371 906
1993 1307 1885 1236
2042 1699 1905 1067
1979 1763 1971 1196
CG-SVX17D-EN
6
-
-
-
-
-
-
1639
1682
923
950
1214
1207
1338