Mitsubishi Electric CITY MULTI PKFY-WL NKMU-E Serie Manual De Instrucciones página 16

7. Troubleshooting
The vanes do not move or the indoor unit does not respond to input from
the wireless remote controller.
Noise is louder than specifications.
Nothing appears in the wireless remote controller display, the display
is faint, or signals are not received by the indoor unit unless the remote
controller is close.
After battery installation/replacement of remote controller, part of function
cannot be used.
The operation lamp near the receiver for the wireless remote controller
on the indoor unit is blinking.
Warm air blows from the indoor unit intermittently when heat mode is off
or during fan mode.
The wireless remote controller does not operate (the indoor unit beeps
4 times).
The indoor unit which is not operating becomes warm and a sound,
similar to water flowing, is heard from the unit.
Warning:
If the air conditioner operates but does not cool or heat (depending on model) the room, consult your dealer since there may be a
refrigerant leak. Be sure to ask the service representative whether there is refrigerant leakage or not when repairs are carried out.
The refrigerant charged in the air conditioner is safe. Refrigerant normally does not leak, however, if refrigerant gas leaks indoors, and
comes into contact with the fire of a fan heater, space heater, stove, etc., harmful substances will be generated.
8. Specifications
Model
Power source (Voltage/Frequency)
Capacity (Cooling/Heating)
Dimension (Height)
Dimension (Width)
Dimension (Depth)
Net weight
Fan Airflow rate (Low-High)
Noise level (Low-High)
Note
1. Operation temperature of indoor unit.
Cooling mode: 15 °C WB - 24 °C WB
Heating mode: 15 °C DB - 27 °C DB
2. Cooling/Heating capacity indicates the maximum value at operation under the following condition.
Cooling: Indoor 27 °C DB/19 °C WB, Outdoor 35 °C DB
Heating: Indoor 20 °C DB, Outdoor 7 °C DB/6 °C WB
en
14
Having trouble?
PKFY-WL18NKMU-E
<V/Hz>
<BTU/h>
<mm (inch)>
<mm (inch)>
<mm (inch)>
<kg (lbs)>
<CFM>
<dB>
Here is the solution. (Unit is operating normally.)
 The junction wire connectors of the vane motor and signal receiver
may not be connected correctly. Have an installer check the
connections. (The colors of the male and female sections of the
junction wire connectors must match.)
 The indoor operation sound level is affected by the acoustics of the
particular room as shown in the following table and will be higher than
the noise specification, which was measured in an echo-free room.
High sound-
absorbing rooms
Location
examples
Noise levels
 The batteries are low.
Replace the batteries and press the Reset button.
 If nothing appears even after the batteries are replaced, make sure
that the batteries are installed in the correct directions (+, –).
■
Please check that the clock setting is completed. If clock setting is not
done, please complete.
 The self diagnosis function has operated to protect the air conditioner.
 Do not attempt to repair this equipment by yourself.
Turn off the power switch immediately and consult your dealer. Be
sure to provide the dealer with the model name.
 When another indoor unit is operating in heating mode, the control
valve opens and closes occasionally to maintain stability in the air
conditioning system. This operation will stop after a while.
* If this will cause an undesirable rise in the room temperature in
small rooms, etc., stop the operation of the indoor unit temporarily.
■
Switch the auto mode setting to the AUTO (single set point) mode or
AUTO (dual set point) mode. For details, refer to the included Notice
(A5 sheet) or the Installation Manual.
■
A small amount of refrigerant continues to flow into the indoor unit
even though it is not operating.
PKFY-WL24NKMU-E
Single, 208/230 V, 60 Hz
18,000/20,000
636-706
39-42
Normal rooms
Broadcasting Reception room,
studio, music hotel lobby, etc.
room, etc.
3 to 7 dB 6 to 10 dB
PKFY-WL30NKMU-E
24,000/27,000
365 (14-3/8)
1170 (46-1/16)
295 (11-5/8)
20 (44)
636-777
39-45
Low sound-
absorbing rooms
Office, hotel
room
9 to 13 dB
30,000/34,000
636-918
39-49