TI47UH1 MPU-24
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4
Operating Procedures
4.3 – General
Correct operation of the unit 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 8, 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 unit to AC Power Supply