Optimum Operation; Maintenance - Daikin FXMQ125NFRV16 Operation Manual

• When one outdoor unit is connected with outdoor-
air processing units and indoor units for room air
conditioning, designate one of the remote control-
lers of the indoor units as the master remote con-
troller. (Refer to figure 8)
Otherwise, operation of system will be changed by
outdoor air condition during automatic operation.
• Only the master remote controller can select
heating, cooling or automatic (Only if the remote
controller of outdoor air processing unit is desig-
nated as the master remote controller.) operation.
• The displays of slave remote controllers show
" " (changeover under control) and they
automatically follow the operation mode directed
by the master remote controller.
• However, it is possible to change to fan only oper-
ation with slave remote controllers.
How to designate the master remote con-
troller (Refer to figure 6)
Press the operation mode selector button of the
1
current master remote controller for 4 seconds.
The display showing "
under control) of all slave remote controllers
connected to the same outdoor unit flashes.
Press the operation mode selector button of
2
the controller that you wish to designate as the
master remote controller. Then designation is
completed. This remote controller is desig-
nated as the master remote controller and the
display showing "
under control) vanishes.
The displays of other remote controllers show
" " (changeover under control).
5-4 PRECAUTIONS FOR GROUP CON-
TROL SYSTEM OR TWO REMOTE CON-
TROLLERS CONTROL SYSTEM
This system provides two other control systems
beside individual control (one remote controller con-
trols one indoor unit) system. Confirm the following if
your unit is of the following control system type.
• Group control system
One remote controller controls up to 16 indoor
units. All indoor units are equally set.
• Two remote controllers control system
Two remote controllers control one indoor unit (in
case of group control system, one group of indoor
units). The unit is individually operated.
NOTE
• Contact your Daikin dealer in case of chang-
ing the combination or setting of group control
and two remote controllers control systems.

6. OPTIMUM OPERATION

Observe the following precautions to ensure the
system operates properly.
• Adjust the air outlet properly and avoid direct air
• Adjust the room temperature properly for a com-
• Prevent direct sunlight from entering a room dur-
• Ventilate often.
• Keep doors and windows closed. If the doors and
• Never place objects near the air inlet or the air
• Turn off the power supply to the unit when the unit
" (changeover
• When the display shows "
• Keep the indoor unit and remote controller at least
" (changeover
• It takes time for the room temperature to reach the

7. MAINTENANCE

• ONLY A QUALIFIED SERVICE PERSON IS
• BEFORE OBTAINING ACCESS TO TERMINAL
• DO NOT USE WATER OR AIR OF 50°C OR
flow to room inhabitants.
fortable environment. Avoid excessive heating or
cooling.
ing cooling operation by using curtains or blinds.
Extended use requires special attention to venti-
lation.
windows remain open, air will flow out of your
room causing a decrease in the cooling or heating
effect.
outlet of the unit. It may cause deterioration in the
effect or stop the operation.
is not used for longer periods of time. If the switch
is on, it uses electricity. Before restarting the unit,
turn on the power supply 6 hours before operation
to ensure smooth running. (Refer to the chapter
"OPERATION PROCEDURE".)
air filter), ask a qualified service person to clean the
filters. (Refer to the chapter "MAINTENANCE".)
1 m away from televisions, radios, stereos, and
other similar equipment.
Failing to do so may cause static or distorted pic-
tures.
set temperature.
We recommend starting the operation in advance
using timer operation.
WARNING
ALLOWED TO PERFORM MAINTENANCE.
DEVICES, ALL POWER SUPPLY CIRCUITS
MUST BE INTERRUPTED.
HIGHER FOR CLEANING AIR FILTERS.
" (time to clean the