Operation manual
11
LRYEQ16A7Y1 + LCBKQ3AV1(E)
CONVENI-PACK
4P448940-1A – 2016.07
• If “Centralized Control” is displayed on
the remote controller and pressing the
operation button causes the display to
blink for a few seconds.
This indicates that the central device is con-
trolling the unit.
The blinking display indicates that the remote
control cannot be used.
• The system does not start immediately
after the power supply is turned on.
Wait one minute until the micro computer is
prepared for operation.
2. It stops sometimes
• The remote controller display reads “U4”
or “U5” and stops but then restarts after a
few minutes.
This is because the remote control is inter-
cepting noise from electrical appliances other
than the air conditioner, and this prevents
communication between the units, causing
them to stop.
Operation automatically restarts when the
noise goes away.
3. COOL/HEAT cannot be changed over.
• When the display shows “ ”
(changeover under control).
It shows that this is a slave remote controller.
Refer to “Setting the master remote control-
ler”.
• When the cool/heat selector switch is
installed and the display shows
“ ” (changeover under control).
This is because cool/heat changeover is con-
trolled by the cool/heat selector. Ask your Dai-
kin dealer where the remote control switch is
installed.
4. Fan operation is possible, but cooling and
heating do not work.
• Immediately after the power is turned on.
The micro computer is getting ready to oper-
ate.
Wait 10 minutes.
5. The fan strength does not correspond to the
setting.
• The fan strength does no change even if
the fan strength adjustment button in
pressed.
During heating operation, when the room
temperature reaches the set temperature, the
outdoor unit goes off and the indoor unit
changes to whisper fan strength.
This is to prevent cold air blowing directly on
occupants of the room.
The fan strength will not change even if the
button is changed, when another indoor unit
is in heating operation.
6. White mist comes out of a unit.
<Indoor unit for air conditioning>
• When humidity is high during cooling
operation.
If the interior of an indoor unit is extremely
contaminated, the temperature distribution
inside a room becomes uneven. It is neces-
sary to clean the interior of the indoor unit.
Ask your Daikin dealer for details on cleaning
the unit. This operation requires a qualified
service person.
• Immediately after the cooling operation
stops and if the room temperature and
humidity are low.
This is because warm refrigerant gas flows
back into the indoor unit and generates
steam.
<Indoor unit for air-conditioning, outdoor
unit>
• When the system is changed over to heat-
ing operation after defrost operation.
Moisture generated by defrost becomes
steam and is exhausted.
7. Noise of air-conditioners.
<Indoor unit for air-conditioning>
• A continuous low “shah” sound is heard
when the system is in cooling operation or
at a stop.
When the drain pump (optional accessories)
is in operation, this noise is heard.
• A low “sah”, “choro-choro” sound is
heard while the indoor unit is stopped.
When the other indoor unit is in operation, this
noise is heard. In order to prevent oil and
refrigerant from remaining in the system, a
small amount of refrigerant is kept flowing.
<Outdoor unit, booster unit>
•
When the tone of operating noise changes.
This noise is caused by the change of fre-
quency.
<Indoor unit for air-conditioning, outdoor
unit, booster unit>
• A continuous low hissing sound is heard
when the system is in cooling or defrost
operation.
This is the sound of refrigerant gas flowing
through both indoor and outdoor units.
• A hissing sound which is heard at the start
or immediately after stopping operation or
defrost operation.
This is the noise of refrigerant caused by flow
stop or flow change.
8. Dust comes out of the unit.
• When the unit is used after stopping for
a long time.
This is because dust has gotten into the unit.
4PEN448940-1A.book Page 11 Thursday, August 25, 2016 11:23 AM
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