AFDE-SVU02F-EN
49
AFDE Startup Procedure
Note:
Graphic labels (shown above) are used for CE
application only.
Important:
•
Before servicing, disconnect all power sources and
allow at least 10 minutes for capacitors to discharge.
•
All electrical enclosures-unit or remote-are IP2X.
The refrigerant-cooled adaptive frequency drive is unit-
mounted on CenTraVac™ chillers. It is installed and
programmed completely in the factory. Follow the
procedure below when starting the water chiller and drive.
1. The UC800 is the primary controller for the
CenTraVac™ chiller and is located in the control panel.
The UC800 starts, stops, and monitors all unit and
AFDE run functions.
Complete all items on the commissioning checklist and
in the startup procedures for the chiller as defined in
the chiller
Installation, Operation, and Maintenance
manual, or other applicable manual.
2. Check the following on the drive:
a. 380–480 volt input wiring to the drive is sized
correctly and connected as noted in this manual.
b. Check the drive ground connection as detailed in
“Input Power and Control Wiring,” p. 31
, check
cabinet wire routing and grounding.
c.
For CVHH and CDHH chillers
, verify the overload
setting on the oil pump motor starter assembly
(refer to
for location of the oil pump motor
starter assembly).
NOTICE
Perform Visual Inspection!
Before powering up this drive for the first time conduct
a visual inspection for the following:
•
Shipping damage.
•
Signs of moisture.
•
Signs of debris or dust from storage.
•
Signs of corrosion on components and/or enclosure.
These conditions could cause equipment damage. Do
not power up equipment if you have concerns
regarding equipment condition. Upon initial power up,
remain in the area for the first two hours of operation
and observe the chiller and drive for any abnormalities.
Contact CenTraVac™ Chiller Technical Support for
assistance if needed.
WARNING
Hazardous Voltage!
Failure to follow the instructions below could result in
death or serious injury. Be sure all enclosure doors are
closed and properly secured with fasteners when
operating equipment.
X39003893001A
WARNING
Hazardous Voltage w/Capacitors!
Failure to disconnect power and discharge capacitors
before servicing could result in death or serious injury.
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. For variable frequency drives
or other energy storing components provided by Trane
or others, refer to the appropriate manufacturer’s
literature for allowable waiting periods for discharge of
capacitors. Verify with an appropriate voltmeter that all
capacitors have discharged.
Failure to follow the instructions below could result in
death or serious injury. DC bus capacitors retain
hazardous voltages after input power has been
disconnected. Follow proper lockout/tagout procedures
to ensure the power cannot be inadvertently energized.
after disconnecting input power, wait ten (10) minutes
for the DC capacitors to discharge and then check the
voltage with a voltmeter to ensure the DC bus
capacitors are discharged before touching any internal
components.
For additional information regarding the safe discharge
of capacitors, see PROD-SVB06*-EN
