Ensure that the power supply to the cooling accessory can be isolated in a fault condition if required.
The ACX air-cooler requires a 24 V d.c. electrical supply. You can connect the ACX air-cooler to an EXC Controller, a
TIC or an EXT DX podule, or you can use your own electrical supply.
Note: For combined use of both axial and radial ACX400 air-coolers, a TIC can be used to supply power to one ACX.
A separate 24 V power supply is required.
Use the following procedure to make the electrical connections.
1. Shorten the cable to the required length and reconnect the ring terminal.
2. Connect the cable cores to an EXC Controller (refer to the EXC Controller instruction manual), to a TIC (refer to
the TIC instruction manual), to a podule connector plug (refer to Figure 21), or to your own electrical supply.
3. Connect the cable screen to a suitable earth (ground) connection. For EXTPX, an uninsulated braid may be used.
Use the M5 x 10 screw and shake-proof washer supplied (attached to fan cowling) to secure the earth conductor
to the air-cooler.
4. Switch on the ACX air-cooler (refer to the EXT DX, EXC or TIC instruction manual, or switch on your own
electrical supply) and ensure that the fan in the ACX air-cooler rotates in the correct direction (that is, that
cooling-air is blown towards the EXT pump). If the direction of rotation is incorrect, check and correct the
electrical connections.
3.4 Operation
Operation of the ACX air-cooler depends on how you have connected it:
z If you have connected the ACX air-cooler to an EXC Controller, use the EXC Controller to operate the ACX
air-cooler: refer to the EXC Controller instruction manual.
z If you have connected the ACX air-cooler to the podule of an EXT DX pump, reconfigure the podule to
operate the fan: refer to the EXT DX pump instruction manual.
z If you have connected the ACX air-cooler to a TIC: refer to the TIC instruction manual for operating
instructions.
z If you have connected the ACX air-cooler to your own electrical supply, switch on the electrical supply to
operate the ACX air-cooler.
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