RLC-SVX14H-GB
79
When installation is complete, but prior to putting the
unit into service, the following pre-start procedures must
be reviewed and verifi ed correct:
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.
NOTE: Verify removal of oil separator shipping spaces
as required in Installation-Mechanical chapter. Failure to
remove the spacers could result in excessive noice 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.
•
For RTUD units : oil is not supplied with unit and must
be ordered separately to be charged in the unit when
pipe work is done to avoid moisture polution.
•
Verify that all refrigerant valves are “OPEN”.
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.
CAUTION
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.
•
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. Refer to Paragraph “Unit Voltage
Imbalance”.
•
Check the unit power phasing to be sure that it
has been installed in an “ABC” sequence. Refer to
Paragraph “Unit Voltage Phasing”.
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 quali
fi
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.
•
Fill the evaporator and condenser chilled water
circuits. Vent the system while it is being fi lled. Open
the vents on the top of the evaporator and condenser
during fi lling and close when fi lling is completed.
Pre-Start Checkout
