Choose installation location
The indoor unit shall be installed at locations where cold and hot air could evenly circulated.
The following locations should be avoided:
Places with rich saline matters (seaside regions).
Places with plenty of gas sulfides (mainly in warm spring areas where the copper tube and
braze weld is prone to corrosion).
Locations with much oil (including mechanical oil) and steam.
Locations using organic solvents.
Places where there are machines generating HF electromagnetic waves.
Positions adjacent to door or window in contact with high-humidity external air. (Easy to
generate dew).
Locations frequently using special aerosols.
Indoor unit
1. Select suitable places the outlet air can be sent to the
entire room, and convenient to lay out the connection
pipe, connection wire and the drainage pipe to outdoor.
2. The ceiling structure must be strong enough to support
the unit weight.
3. The connecting pipe, drain pipe and connection wire
shall be able to go though the building wall to connect
between the indoor and outdoor units.
4. The connecting pipe between the indoor and outdoor units as well as the drain pipe shall be
as short as possible. (See Figure 1)
5. If its necessary to adjust the filling amount of the refrigerant, please refer to the installation
manual attached with the outdoor unit.
6. The connecting flange should be provided by the user himself.
7. The indoor unit has two water outlets one of which is obstructed at the factory (with a rubber
cap). Only the outlet not obstructed (liquid inlet and outlet side) will be generally used during
installation. If applicable, both the outlets should be used together.
Important
An access port must be provided during installation of indoor unit for maintenance.
Fig 1
Please do not install the unit in places where flammable gases may be leaked. In case
that gas is leaked and accumulated around the unit, it may cause dangers of fire etc.
! Caution
When install the AE072~242FEAHA/AE072~242FEBIA units, need connect the
corresponding PMV Box to the liquid pipe and fasten the PMV Box,When the distance
between PMV Box and indoor unit longer than 1m,please use 8m signal wires (accessory).
15
Troubleshooting
When
failure
occurs, use the remote controller to display the corresponding
failure
code.
Confirm and verify
1. Press the " Check " switch on the remote controller for 1-2 seconds, "Check " will appear,
and the unit number and the
failure
code will be displayed on the remote controller.
2. The displayed number is the
failure
unit number.
3. Example is listed as follows:
Check
Normal
:
One
failure:
Two
failure:
OC
14
OC
OC
The signs will be displayed for
a very short time. If not seen
clearly, press the " Check "
switch again.
All stop
Running continues
All stop
93/94
11
12
14
17
18
1C
1d
1F
21
b5
b6
97
98
99
Indoor heat exchanger & sensor circuit (TC1/TC2), including indoor heat
exchanger & sensor (TC1/TC2) and indoor PC board
Indoor fan system, including revolution detecting circuit, indoor fan motor
and indoor PC board
Outdoor defrosting sensor circuit, including outdoor defrosting sensor
(TE) and outdoor converter PC board
Compressor system, including compressor lock and phase absence
External abnormal input, including external machine and indoor PC board
External interlocked input, including external machine and indoor PC board
Connecting wire, indoor PC board and wire controller
Setting of indoor unit number and wire controller
Current detecting circuit, including power Pressure and overload of
refrigerant circulation
Center controlled communication circuit, including communication wire,
centralized controller, indoor power and indoor PC board
Center controlled address setting, including address setting (SW02),
central wire controller and indoor PC board
Fault codes and failure place
Fault code
Reacons
Phenomenon
Running continues
0C
Room-temperature sensor(TA)circuit,including Room-temperature
sensor(TA),indoor PC board.
All stop
All stop
All stop
All stop
All stop
All stop
Running continues
All stop
Stops
Runs
Running continues
Running continues
Running continues
2
Outdoor unit, including outdoor interface control (I/F) PC board
Converter overcurrent protection circuit, including G-Tr, outdoor PC board,
converter wiring and compressor
Current sensor circuit, including current detecting circuit and outdoor
converter PC board
Indoor unit, including PC board (EEPROM and peripheral circuit)
High pressure switch circuit, including high pressure switch and overload
of refrigerant circulation