U-5~48MX3 + U-8~48ME3XPQ
Urban Multi air conditioner
4PW16236-1
Operation manual
3
4.
C
HANGEOVER
SWITCH
: N
AME
AND
FUNCTION
OF
EACH
SWITCH
(See figure 2)
1
FAN ONLY/AIR CONDITIONING SELECTOR SWITCH
Set the switch to
for fan only operation or to
for heating or
cooling operation.
2
COOL/HEAT CHANGEOVER SWITCH
Set the switch to
for cooling or to
for heating operation.
5.
O
PERATION
RANGE
Use the system in the following temperature and humidity ranges for
safe and effective operation.
6.
O
PERATION
PROCEDURE
■
Operation procedure varies according to the combination of
outdoor unit and remote controller. Read "2. What to do before
operation" on page 2.
■
To protect the unit, turn on the main power switch 6 hours before
operation.
■
If the main power supply is turned off during operation, operation
will restart automatically after the power turns back on again.
6.1.
Cooling, heating, automatic, and fan only
operation
(See figure 3 and figure 4.1)
■
Changeover cannot be made with a remote controller whose
display shows
(change-over under centralized control).
■
When the display
(change-over under centralized control)
flashes, refer to "6.4. Setting the master remote controller (for
MX3 and ME3 series)" on page 4.
■
Automatic operation can be selected only for ME3 series.
■
The fan may keep on running for about 1 minute after the
heating operation stops.
■
The air flow rate may adjust itself depending on the room
temperature or the fan may stop immediately. This is not a
malfunction.
For systems without cool/heat changeover remote control
switch (See figure 3)
Press the operation mode selector button several times and
select the operation mode of your choice.
Press the on/off button.
The operation lamp lights up and the system starts operation.
For systems with cool/heat changeover remote control switch
(See figure 4.2)
Select operation mode with the cool/heat changeover remote
control switch as follows:
Press the on/off button.
The operation lamp lights up and the system starts operation.
Adjustment
For programming temperature, fan speed and air flow direction, refer
to the operation manual of the remote controller.
Stopping the system
Press the on/off button once again.
The operation lamp goes off and the system stops operation.
U-5~48 U-8~48ME3XPQ
COOLING
HEATING
Outdoor temperature
–5~43°C DB
–20~21°C DB
–20~15.5°C WB
Indoor temperature
21~32°C DB
15~27°C DB
14~25°C WB
Indoor humidity
≤
80%
(*)
(*)
to avoid condensation and water dripping out the unit.
If the temperature or the humidity is beyond these conditions, safety
devices may work and the air conditioner may not operate.
Cooling operation
Heating operation
Automatic operation
Fan only operation
NOTE
Automatic operation (ME3 only)
In this operation mode, cool/heat changeover is
automatically conducted.
Cooling operation (figure 4.1)
Heating operation (figure 4.2)
Fan only operation (figure 4.3)
NOTE
Do not turn off power immediately after the unit stops,
but wait for at least 5 minutes.
1
2
1
2
3
