TM 55-8145-201-14
4-6. INSTALLATION INSTRUCTIONS- cont.
d. External Power Connection (230 Vac, 3-Phase).
WARNING
To prevent injury to personnel and damage to the equipment, make sure generator set is
not operating when connecting or disconnecting power cable. Refer to TM 5-6115-585-
12/34 for generator set shutdown instructions.
(1) If connected, disconnect 5-foot generator set power cable from 30-foot refrigeration unit power cable.
CAUTION
To prevent damage to the refrigeration unit, external power must not exceed 230 volts at
any time during operation. Do not use an external power source that may fluctuate
above maximum voltage.
(2) Connect 30-foot refrigeration unit power cable to external 230 Vac, 3-phase external power source.
e. External Power Connection (380 Vac, 50 Hz, 3-Phase, with 2/1 Stepdown Transformer).
WARNING
To prevent injury to personnel and damage to the equipment, make sure generator set is
not operating when connecting or disconnecting power cable. Refer to TM 5-6115-585-
12/34 for generator set shutdown instructions.
(1) If connected, disconnect 5-foot generator set power cable from 30-foot refrigeration unit power cable.
WARNING
To prevent injury to personnel and damage to equipment from electrical hazards, all
appropriate and pertinent national and local electrical codes shall be complied with.
CAUTION
When operating with this external power source, be sure that voltage at the
secondary terminals does not exceed 190 volts at any time. The voltage range
using 50 hz power for continuous operation of the refrigeration unit is limited to 173
to 190 volts.
Due to reduced refrigeration capacity when operating with a 50 hz power, monitor
container interior temperature to prevent damage to cargo.
(2) Connect 30-fot refrigeration unit power cable to external 380 volt, 3-phase external power source with a
2/1 stepdown transformer between power source and refrigeration unit.
4-8
