RLC-SVX07A-EN 31
Installation - Mechanical
Water Piping
Thoroughly flush all water piping to the RTWA/RTUA unit before making the
final piping connections to the unit.
CAUTION
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.
CAUTION
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.
CAUTION
Use Piping Strainers!
To prevent evaporator or condenser damage, pipe strainers must
be installed in the water supplies to protect components from
water born debris. Trane is not responsible for equipment-only-
damage caused by water born debris.
Evaporator Water Piping (for RTWA and RTUA Units Only)
Figure 15 illustrates typical evaporator piping components. Components and
layout will vary slightly, depending on the location of connections and the
water source.
CAUTION
Equipment Damage!
The chilled water connections to the evaporator are to be grooved
connections. Do not attempt to weld these connections, as the
heat generated from welding can cause internal damage to the
evaporator.
The chilled water connections are on the back of the unit, when facing the
control panel.
A vent is provided on the top of the evaporator at the return end. 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.
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