Trane RTWD Installation Operation & Maintenance page 80

Pre-Start Checkout
CAUTION
Proper Water Treatment!
The use of untreated or improperly treated water may
result in scaling, erosion, corrosion, algae or slime. It
is recommended that the services of a qualifi ed 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.
• Close the fused-disconnect switch(es) that supplies
power to the chilled water pump starter and the
condenser water pump starter.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
RTWD HSE version
• Time before to work on the electrical panel of the unit:
once the AFD is off (confi rmed by the extinction of the
display), it is mandatory to wait one minute before
working on the electrical panel.
• However, for any intervention in the AFD, the indicated
time on the label of the AFD must be respected.
• Start the chilled water pump and condenser water
pump (RTWD only).
• to begin circulation of the water. Inspect all piping for
leakage and make any necessary repairs.
• With water circulating through the system, adjust
water fl ow and check water pressure drop through the
evaporator and condenser.
• Adjust the chilled water fl ow switch and condenser
water fl ow switch (if installed) for proper operation.
• Prove all Interlock and Interconnecting Wiring Interlock
and External as described in Section "Installation-
Electrical".
• Check and set, as required, all CH530 Menu Items.
• Stop the chilled water pump and condenser water
pump.
80
Unit Voltage Power Supply
WARNING
Live Electrical Components!
During installation, testing, servicing and troubleshooting
of this product, it may be necessary to work with
live electrical components. Have a qualifi ed licensed
electrician or other individual who has been properly
trained in handling live electrical components perform
these tasks. Failure to follow all electrical safety
precautions when exposed to live electrical components
could result in death or serious injury.
Voltage to the unit must meet the criteria given in.
Measure each leg of the supply voltage at the unit's
main power fused-disconnect. If the measured voltage
on any leg is not within specifi ed range, notify the
supplier of the power and correct the situation before
operating the unit.
CAUTION
Equipment Damage!
Inadequate voltage to the unit may cause control
components to malfunction and shorten the life of relay
contact, compressor motors and contactors.
RLC-SVX14H-GB