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Installation Mechanical
NOTICE
Proper Water Treatment Required!
The use of untreated or improperly treated water
could result in scaling, erosion, corrosion, algae or
slime.
Use the services of a qualified water treatment
specialist 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.
NOTICE
Evaporator Damage!
Failure to follow instructions below could cause
damage to the evaporator.
The chilled water connections to the evaporator are to
be "victaulic" type connections. Do not attempt to
weld these connections, as the heat generated from
welding can cause microscopic and macroscopic
fractures on the cast iron waterboxes that can lead to
premature failure of the waterbox. To prevent damage
to chilled water components, do not allow evaporator
pressure (maximum working pressure) to exceed 150
psig (10.5 bar).
•
Evaporator water connections are grooved.
•
Thoroughly flush all water piping to the unit before
making the final piping connections to the unit.
54
•
Components and layout will vary slightly, depending on
the location of connections and the water source.
•
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.
•
Provide shutoff valves in lines to the gauges to isolate
them from the system when they are not in use. Use
rubber vibration eliminators to prevent vibration
transmission through the water lines.
•
If desired, install thermometers in the lines to monitor
entering and leaving water temperatures.
•
Install a balancing valve in the leaving water line to
control water flow balance.
•
Install shutoff valves on both the entering and leaving
water lines so that the evaporator can be isolated for
service.
Evaporator Piping Components
Piping components include all devices and controls used to
provide proper water system operation and unit operating
safety. These components and their general locations are
given below.
AC-SVX003A-EN
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