30 RTAC-SVX002A-EN
Installation Mechanical
CAUTION
Proper Water Treatment!
The use of untreated or improperly
treated water in a unit may result in
scaling, erosion, corrosion, algae
or slime. It is recommended that
the services of a qualied 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.
If using an acidic commercial
ushing solution, construct a
temporary bypass around the
unit to prevent damage to internal
components of the evaporator.
Dirt, scale, products of corrosion and
other foreign material will adversely
affect heat transfer between the water
and system components. Foreign
matter in the chilled water system
can also increase pressure drop and,
consequently, reduce water ow. Proper
water treatment must be determined
locally, depending on the type of
system and local water characteristics.
el establecimiento de un programa
adecuado para el tratamiento del agua.
La utilización en estas unidades de
agua no tratada o tratada de manera
inadecuada puede provocar un
funcionamiento ineciente y posibles
daños a los tubos. Consultar a un
especialista calicado en tratamiento de
agua para determinar si es necesario
tal tratamiento. La siguiente etiqueta
de exención de responsabilidad está
presente en cada unidad RTAC:
Neither salt nor brackish water is
recommended for use in Trane air-
cooled Series R® chillers. Use of
either will lead to a shortened life to
an indeterminable degree. The Trane
Company encourages the employment
of a reputable water treatment special-
ist, familiar with local water conditions,
to assist in this determination and in
the establishment of a proper water
treatment program.
Using untreated or improperly treated
water in these units may result in
inefcient operation and possible tube
Fig. III-10 – Evaporator Water Pressure Drop
NOTE: Once the unit is installed at a site, one vertical or one diagonal unit support can be permanently removed if it creates an obstruction for water piping.
To read manifolded pressure gauges, open one valve and close the other (depending upon the reading desired). This eliminates errors resulting from differently
calibrated gauges installed at unmatched elevations.
damage. Consult a qualied water
treatment specialist to determine
whether treatment is needed. The
following disclamatory label is provided
on each RTAC unit:
NOTE: The use of improperly treated
or untreated water in this equipment
may result in scaling, erosion, corrosion,
algae or slime. The services of a
qualied water treatment specialist
should be engaged to determine what
treatment, if any, is advisable. The
Trane Company warranty specically
excludes liability for corrosion, erosion
or deterioration of Trane equipment.
Water Pressure Gauges
Install eld-supplied pressure
components as shown in Figure 25.
Locate pressure gauges or taps in a
straight run of pipe; avoid placement
near elbows, etc. Be sure to install
the gauges at the same elevation on
each shell if the shells have opposite
endwater connections.
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