Panasonic U-5MX3XPQ Operation Manual page 6

Explanation of heating operation
Defrost operation
In heating operation, freezing of the outdoor unit coil increases.
Heating capability decreases and the system goes into defrost
operation.
The indoor unit fan stops and the remote controller displays
.
After maximum 10 minutes of defrost operation, the system
returns to heating operation again.
Hot start
In order to prevent cold air from blowing out of an indoor unit at
the start of heating operation, the indoor fan is automatically
stopped. The display of the remote controller shows
6.2. Program dry operation
The function of this program is to decrease the humidity in your
room with a minimum temperature decrease.
The micro computer automatically determines temperature and
fan speed.
The system does not go into operation if the room temperature
is low.
For systems with cool/heat changeover remote control switch
(See figure 5)
Select cooling operation mode with the cool/heat changeover
1
remote control switch.
Press the operation mode selector button several times and
2
select (program dry operation).
Press the on/off button.
3
The operation lamp lights up and the system starts operation.
Press the air flow direction
4
S-20~125LM3, S-20~125UM3,
S-25~63DM3HPS, S-20~63KM3HPR). Refer to
the air flow direction" on page 4
Stopping the system
Press the on/off button once again.
5
The operation lamp goes off and the system stops operation.
NOTE Do not turn off power immediately after the unit stops,
but wait for at least 5 minutes.
Operation manual
4
.
adjust button (only for
S-32~100TM3JPR,
"6.3. Adjusting
for details.
6.3. Adjusting the air flow direction
Refer to the operation manual of the remote controller.
Movement of the air flow flap (See figure 10)
For the following conditions, a micro computer controls the air flow
direction which may be different from the display.
COOLING
—
• When operating continuously at horizontal air flow direction.
• When continuous operation with downward air flow is performed at the time of cooling with a
ceiling-suspended or a wall-mounted unit, the microcomputer may control the flow direction,
and then the remote control indication also will change.
The air flow direction can be adjusted in one of the following ways.
The air flow flap itself adjusts its position.
The air flow direction can be fixed by the user.
Automatic " " and desired position "
NOTE The movable limit of the flap is changeable.
Contact your dealer for details. (Only for Double-
flow, Multi-flow, Corner, Ceiling-suspended and
Wall-mounted.)
Avoid operating in the horizontal direction
" ". It may cause dew or dust to settle on the
ceiling.
6.4. Setting the master remote controller (for MX3
and ME3 series)
(See figure 7)
When the system is installed as shown in figure 11 and figure 12, it is
necessary to designate one of the remote controllers as the master
remote controller.
For MX3 series (See figure 11)
When one outdoor unit is connected with several indoor units.
For ME3 series (See figure 12)
When one HR unit is connected with several indoor units.
Only the master remote controller can select heating, cooling or
automatic (only ME3 series) operation.
The displays of slave remote controllers show
over under centralized control) and they automatically follow the
operation mode directed by the master remote controller.
However, it is possible to changeover to program dry with slave
remote controllers if the system is in cooling operation set by the
master remote controller.
How to designate the master remote controller
Press the operation mode selector button of the current master
1
remote controller for 4 seconds.
The display showing
control) of all slave remote controllers connected to the same
outdoor unit or HR unitflash.
Press the operation mode selector button of the controller that
2
you wish to designate as the master remote controller. Then
designation is completed. This remote controller is designated
as the master remote controller and the display showing
(change-over under centralized control) vanishes.
The displays of other remote controllers show
over under centralized control).
HEATING
• When starting operation.
• When the room temperature is lower
than the set temperature.
• At defrost operation.
".
(change-
(change-over under centralized
(change-
U-5~48MX3 + U-8~48ME3XPQ
Urban Multi air conditioner
4PW16236-1