Quick Charge APU14v/25A - Manual (Page 2)

NORMAL OPERATION POWER SUPPLY:
1). Make sure main power switch is off. Be sure the unit matches the system voltage of aircraft. Plug connector
into APU receptacle.
2). Plug the unit into AC power. 117 volts, or 230 if designed for it.
3). Place selector switch in power supply position.
4). Turn ON aircraft master switch.
5). Flip power switch ON. As loads are placed on the bus, the ammeter and voltmeter should indicate the
current, and output volts. NOTE: The voltmeter may read as much as 1 volt higher than actual buss voltage
when the unit is fully loaded, as the load is reduced, the meter will read more accurate. Current is limited to
25 or 50 amps, depending on model.
6). If nothing happens, slide the third pin power switch to the other position.
7). To discontinue, flip the power switch OFF first, then unplug the AC power cord and disconnect plug from
APU receptacle.
NORMAL OPERATION BATTERY CHARGER:
1). Follow steps 1 and 2, then place selector switch in battery charge position.
2). Turn ON battery switch in cockpit. Master switch (avionics) OFF.
3). Flip power switch ON. Output voltage should be registered on voltmeter. NOTE: The voltmeter may read as
much as 1 volt higher than actual battery voltage when the unit is fully loaded, as the battery becomes
charged, the meter will read more accurate to actual battery voltage. The charge current is up to 10 amps. If
there is no output, slide the third pin power switch to the other position.
4). As the battery charges, amps will decrease as voltage increases, battery is fully charged near 14 or 28
volts, depending on model. Current should be one amp and lower. Charger can be left connected indefinitely
without damage to battery.
5). To discontinue, flip the power switch OFF first, then unplug the AC power cord and disconnect plug from
APU receptacle.
WARNING: Do not disconnect the DC plug when the unit is on. The resulting arcing could cause burning of
the plug and receptacle contacts.
WARNING: Failure to unplug AC and DC power before moving or driving equipment will result in
damage to cords, plugs and receptacles.
TROUBLE SHOOTING:
DANGER: To reduce the risk of electric shock, always disconnect both the AC power supply cord and the
output leads or connector before attempting any maintenance cleaning.