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CHAPTER 2
UNIT DESCRIPTION AND OPERATION
SECTION I. UNIT
2-1. GENERAL
The TI2000GPU-24 (Turbo Start 2000) (Figure 2-1 and 2-2) is a compact, portable
and highly versatile 24/28.5 VDC electrical ground power unit. The unit incor-
porates a 120-240 VAC to 28.5 VDC converter, a 24 volt unique (dry) power cell
and an internal intelligent 120 to 240 volt AC charger to recharge the power
cells. These built-in features give the Turbo Start 2000 self-sufficiency and
mobility for short-term operations without AC electrical power or long term
operations with AC electrical power. Short term operations rely solely on
power cell output and the fast recharge rates that the unit’s internal charger
provides from any standard 120 or 240 VAC electrical outlet. Longer term op-
erations incorporate the continuous 20 amp output of the 120-240 VAC to 28.5
VDC converter, or a combination of converter and power cell output to provide
24 VDC output. The following are the unit’s four (4) main operational support
capabilities:
a. 24 VDC 3000 amp peak power output for engine starting or constant (one
hour) rated power output (without a 120-240 VAC power source) for short term
trouble shooting and flexible flight line support ground power.
b. 24 VDC constant (one hour) rated power output or variable high load de-
mand output (less than one hour) with a 120-240 VAC power source for extended
maintenance (hangar) and routine flight line maintenance, ground support
power.
c. 28.5 VDC continuous rated (AC to DC converter) power output with a 120-
240 VAC power source for hangar and routine flight line maintenance support,
and avionics bench testing.
d. Rapid recharge of the unit’s power cells from any 120-240 VAC common
power source. This feature eliminates the need for special recharge equip-
ment and dedicated maintenance support man-hours.
WARNING
Check fuse holder window to ensure the fuse setting reads either 120 or
240 prior to connecting recharge cord to AC power source.
Fuse setting (120/
240) must match AC power source (hangar wall, flight line AC power) prior to
connecting TURBO START for recharging.
(SEE PAGE 2-4 FOR
FUSE SETTING PROCEDURES)