Installation And Initial Setup - Trane HUV Installation, Operation And Maintenance Manual

Installation and Initial Setup

WARNING
Hazardous Voltage w/Capacitors!
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 disconnect
power and discharge capacitors before servicing could
result in death or serious injury.
UV-SVN02C-EN
WARNING
Safety Alert!
You MUST follow all recommendations below. Failure
to do so could result in death or serious injury.
• The BLDC motors contain capacitors which store
residual energy. Please keep clear of the fan wheels
for 5 minutes after the power has been removed from
the system, as a power request with the motor
powered off, could result in a very short period of
actuation.
• All settings take effect immediately, including fan
startup and enabling of electric heat. Caution should
be taken to stay clear of hazardous voltages, moving
parts and electric heat elements while making
adjustments to the ECM engine board. If it is not
practical to stay clear of these areas during
adjustment of the ECM engine board, please contact
Trane Global Parts for configuration kit that allows
easy powering of the engine board outside of the unit
with a 9V battery.
• The adapter boards contain high voltage.
Configuration adjustments to the ECM engine board
should be made through the SMALLER of the two
low-voltage lids on the front of the control panel,
through the low-voltage insulation/shielding.
• Changes to switch settings on the CSTI adapter
board take effect immediately. Changes should be
made to the CSTI configuration switches with the
power off.
• Initial hookups to the CSTI and Standard Adapter
board, including low voltage interconnections, must
be made with the power off.
• Do not make connections to the motors or the
adapter boards while power is ON. Do not remove
connections to the motor or the adapter boards while
the power is ON.
• Do not free spin the fan wheels with your hands while
the unit is powered on. The system is constantly
scanning and responding to the operational status of
the motors.
Installation and Initial Setup
Note: Normally, the Trane BLDC motors are configured
for soft ramps and transitions between speeds.
However, to aid in commissioning of the unit, for
approximately 10–15 minutes, the ramps will be
shortened to quickly observe proper unit behavior
and response to speeds.
For new installations, all boards and motors are pre-
installed and pre-configured according to the unit
configuration, indicated by its model number.
Under normal and intended operation, the only required
intervention specific to the new BLDC units is the wiring of:
ECM Overview and Setup
45