TP-6865 4/14
6
Safety Precautions and Instructions
WARNING
Hazardous voltage.
Can cause severe injury or death.
Close and secure the enclosure door
before energizing the transfer switch.
Grounding electrical equipment.
Hazardous
voltage
can
cause
severe injury or death.
Electrocution
is possible whenever electricity is
present. Ensure you comply with all
applicable codes and standards.
Electrically ground the generator set,
transfer switch, and related equipment
and electrical circuits. Turn off the main
circuit breakers of all power sources
before servicing the equipment. Never
contact electrical leads or appliances
when standing in water or on wet
ground because these conditions
increase the risk of electrocution.
Short
circuits.
Hazardous
voltage/current can cause severe
injury or death.
Short circuits can
cause bodily injury and/or equipment
damage
.
Do not contact electrical
connections with tools or jewelry while
making
adjustments
or
repairs.
Remove all jewelry before servicing the
equipment.
Servicing
the
transfer
switch.
Hazardous
voltage
can
cause
severe injury or death.
Deenergize all
power sources before servicing. Turn
off the main circuit breakers of all
transfer switch power sources and
disable all generator sets as follows:
(1) Move all generator set master
controller switches to the OFF position.
(2) Disconnect power to all battery
chargers. (3) Disconnect all battery
cables, negative (--) leads first.
Reconnect negative (--) leads last when
reconnecting the battery cables after
servicing. Follow these precautions to
prevent the starting of generator sets
by an automatic transfer switch, remote
start/stop switch, or engine start
command from a remote computer.
Before servicing any components
inside the enclosure: (1) Remove all
jewelry. (2) Stand on a dry, approved
electrically insulated mat.
(3) Test
circuits with a voltmeter to verify that
they are deenergized.
Making
line
or
auxiliary
connections.
Hazardous voltage
can cause severe injury or death.
To
prevent electrical shock deenergize the
normal power source before making
any line or auxiliary connections.
Servicing
the
transfer
switch
controls and accessories within the
enclosure. Hazardous voltage can
cause severe injury or death.
Disconnect the transfer switch controls
at the inline connector to deenergize
the circuit boards and logic circuitry but
allow the transfer switch to continue to
supply power to the load. Disconnect
all power sources to accessories that
are mounted within the enclosure but
are not wired through the controls and
deenergized
by
inline
connector
separation.
Test circuits with a
voltmeter to verify that they are
deenergized before servicing.
Testing live electrical circuits.
Hazardous voltage or current can
cause severe injury or death.
Have
trained and qualified personnel take
diagnostic measurements of live
circuits. Use adequately rated test
equipment with electrically insulated
probes and follow the instructions of the
test equipment manufacturer when
performing voltage tests. Observe the
following precautions when performing
voltage tests: (1) Remove all jewelry.
(2) Stand on a dry, approved electrically
insulated mat. (3) Do not touch the
enclosure or components inside the
enclosure. (4) Be prepared for the
system to operate automatically.
(600 volts and under)
Heavy Equipment
Unbalanced weight.
Improper lifting can cause severe
injury or death and equipment
damage.
Use adequate lifting capacity.
Never leave the transfer switch
standing upright unless it is securely
bolted in place or stabilized.
WARNING
Notice
NOTICE
Improper operator handle usage.
Use the manual operator handle on the
transfer
switch
for
maintenance
purposes only. Return the transfer
switch to the normal position. Remove
the manual operator handle, if used,
and store it in the place provided on the
transfer switch when service is
completed.
NOTICE
Electrostatic discharge damage.
Electrostatic
discharge
(ESD)
damages electronic circuit boards.
Prevent
electrostatic
discharge
damage by wearing an approved
grounding wrist strap when handling
electronic circuit boards or integrated
circuits. An approved grounding wrist
strap provides a high resistance (about
1 megohm),
not a direct short
, to
ground
.
Summary of Contents for Decision-Maker MPAC 750
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Page 39: ...TP 6865 4 14 39 Section 6 Accessories Figure 6 9 SPD Wiring Diagram GM89992 ...
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