RLC-SVX14H-GB
37
Electrical Parts
When reviewing this manual keep in mind.
• All fi eld-installed wiring must be in accordance with
local regulations, CE directives and guidelines. Be sure
to satisfy proper equipment grounding requirements
according CE
• The following standardized values - Maximum Amps -
Short Circuit Amps - Starting Amps are displayed on
unit nameplate.
• All fi eld-installed wiring must be checked for proper
terminations, and for possible shorts or grounds.
Note:
always refer to wiring diagrams shipped with
chiller or unit submittal for specifi c electrical schematic
and connection information.
WARNING! Hazardous Voltage with Capacitor!
Disconnect all electric power, including remote
disconnects and discharge all motor start/run and
AFD (Adaptive Frequency TM Drive) capacitors before
servicing. Follow proper lockout/tagout procedures to
ensure the power cannot be inadvertently energized.
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.
Before installing the chiller with HSE version, the user
must evaluate the potential electromagnetic problems
in the surrounding area. The following should be
considered:
a)
the presence above , below and adjacent to the
unit of for example: welding equipment or other power
cables, control cables or signaling and telephone cables;
b)
receivers and transmitters, radio and television;
c)
computer and other control equipment;
d)
the critical safety equipment, eg protection of
industrial equipment;
e)
the health of neighboring persons, for example,
use of pacemakers or appliances against deafness;
f)
the immunity of other equipment in the
environment. The user must ensure that the other
materials used in the environment are compatible. This
may require additional protection measures;
If electromagnetic disturbances are detected, it shall be
the responsibility of the user to resolve the situation. In
any case, the electromagnetic interferences have to be
reduced until they are no longer troublesome.
• 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 discharges capacitors. Verify with
an appropriate voltmeter that all capacitors have
discharged
• 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 twenty (20)
minutes for units which are equipped with variable
frequency drive (0V DC) before touching any internal
components.
Failure to follow these instructions could result death or
serious injury.
For additional information regarding the safe discharge
of capacitors, see “Adaptive Frequency™ Drive (AFD3)
Capacitor Discharge” and BAS-SVX19B-E4.
Hazardous Voltage – Pressurized Burning Fluid!
Before removing compressor terminal box cover for
servicing, or servicing power side of control panel,
CLOSE COMPRESSOR DISCHARGE SERVICE VALVE
and disconnect all electric power including remote
disconnects. Discharge all motor start/run capacitors.
Follow lockout/tagout procedures to ensure the
power cannot be inadvertently energized. Verify with
an appropriate voltmeter that all capacitors have
discharged.
The compressor contains hot, pressurized refrigerant.
Motor terminals act as a seal against this refrigerant.
Care should be taken when servicing NOT to damage or
loosen motor terminals.
Do not operate compressor without terminal box cover
in place.
Failure to follow all electrical safety precautions could
result in death or seriously injure.
General Electrical Recommendations
