Installation and Maintenance Manual

168 RLC-SVX09H-EN
Pre-Start Checkout
When installation is complete, but prior to putting the unit
into service, the following pre-start procedures must be
reviewed and verified correct:
Note: For any installation violations of this manual, use
Non-Compliance form PROD-ADF001-EN.
Note: Verify removal of oil separator shipping spaces as
required in Installation-Mechanical chapter. Failure
to remove the spacers could result in excessive
noise and vibration transmission into the building.
• Inspect all wiring connections to be sure they are clean
and tight.
• For RTUD units, verify that unit piping between RTUD
and condenser is as described in ”Installation-
Mechanical” section.
• Verify that all refrigerant valves are “OPEN”
• Check the power supply voltage to the unit at the main
power fused-disconnect switch. Voltage must be
within the voltage utilization range stamped on the unit
nameplate. Voltage imbalance must not exceed 2
percent. See
"Unit Voltage Imbalance", p. 169.
• Check the unit power phasing to be sure that it has
been installed in an “ABC” sequence. See
"UnitVoltage
Phasing", p. 169.
• Fill the evaporator and condenser chilled water
circuits. Vent the system while it is being filled. Open
the vents on the top of the evaporator and condenser
during filling and close when filling is completed.
• Close the fused-disconnect switch(es) that supplies
power to the chilled water pump starter and the
condenser water pump starter.
• 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 flow and check water pressure drop through the
evaporator and condenser.
• Adjust the chilled water flow switch and condenser
water flow switch (if installed) for proper operation.
• Prove all Interlock and 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.
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.
NOTICE:
Compressor Damage!
Do not operate the unit with the compressor, oil
discharge, liquid line service valves and the manual
shutoff on the refrigerant supply to the auxiliary coolers
“CLOSED”. Failure to “OPEN” all valves may cause
serious compressor damage.
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 qualified
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.
NOTICE:
Proper WaterTreatment!
The use of untreated or improperly treated water could
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.
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.