TI47UH1-46AH MPU-24
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4
Operating Procedures
4.3 – General
Correct operation of the TI47UH1-46AH MPU-24 includes both pre-use and operational checks of the unit.
Knowledge of the operating limits, restrictions, performance, unit capabilities and functions is fundamental
to correct and safe operation. The operator shall ensure compliance with the instructions in this manual
that affect operational safety and the warranty of the unit.
4.4 – Operating Limits and Restrictions
The minimum, maximum and normal operating ranges result from careful engineering and evaluation of
test data. These limitations must be adhered to during all phases of operation.
4.5 – Performance
Refer to Chapter 9, PERFORMANCE DATA to determine the capability of the MPU-24. Consideration must
be given to changes in performance resulting from variations in ambient temperature, mode of operation,
state of charge (with or without 120 or 240 Vac power), and aircraft DC bus system inefficiency (voltage
drops).
4.6 – Operating with AC Power Connected
When the unit is plugged into ac power, the output is 28.5 volts. This voltage allows the system to
recondition and recharge the vehicles battery(ies). It is also an optimum voltage for powering avionics and
lighting on most aircraft. The unit’s ac to dc converter produces continuous amps depending on the size of
the system.
Connect to ac power
Figure 4.6.1 Connecting TI47UH1-46AH MPU-24
to AC Power Supply
