Panasonic Cs Mk7nku 9nku Operating Instructions Manual

							20
ADJUSTING THE AIRFLOW DIRECTION
1. HorizontalThe horizontal airflow can be adjusted by moving the vertical vanes with your 
hands to the left or right.
When the humidity is high, the vertical vanes should be in the front 
position during the cooling or dehumidifying operation. If the vertical 
vanes are positioned all of the way to the right or left, condensation may 
begin to form around the air vent and drip down.
2. VerticalThe vertical airflow can be adjusted by moving the flap with the remote controller. 
Do not move the flap with your hands. Confirm that the remote controller has 
been turned on. Use the FLAP button to set either the sweep function or one of 
the six airflow direction settings.
• The flap automatically closes when the unit is off.
• Use the FLAP button on the remote controller to adjust the position of 
the flap. If you move the flap by hand, the flap position according to the 
remote controller and the actual flap position may no longer match. If 
this should happen, shut off the unit, wait for the flap to close, and then 
turn on the unit again; the flap position will now be normal again.
• Do not have the flap pointed down during cooling operation. 
Condensation may begin to form around the air vent and drip down.
CAUTION
A. Sweep function 
The flap starts moving up and down to 
deliver air over the sweep range.
C. Auto flap function 
The flap is set to the recommended 
position.B. Setting the airflow manually
Referring to the above illustration, use the 
FLAP button to set the airflow direction 
within the range used during the cooling or 
dehumidifying operation.
COOL
DRY
FA NSWEEP
NOTE
CAUTION 
						

							21
OPERATION WITHOUT THE REMOTE CONTROLLER
CARE AND CLEANING
INDOOR UNITIf you have lost the remote controller or it has trouble, follow the steps below.
When the air conditioner is not running 
Each time the OPERATION button is pressed, the operation mode changes 
cyclically. 
The temperature is set to the room temperature minus 4 °F during the cooling 
operation, and the fan speed and flap are set to Auto.
1. For safety, be sure to turn the air conditioner off and also to disconnect 
the power before cleaning.
2. Do not pour water on the indoor unit to clean it. This will damage the 
internal components and cause an electric shock hazard.
Casing and Grille (Indoor Unit)Clean the casing and grille of the indoor unit with a vacuum cleaner brush, or 
wipe them with a clean, soft cloth.
If these parts are stained, use a clean cloth moistened with a mild liquid 
detergent. When cleaning the grille, be careful not to force the vanes out of place.
1. Never use solvents, or harsh chemicals when cleaning the indoor unit. 
Do not wipe the plastic casing using very hot water. 
2. Some metal edges and the fins are sharp and may cause injury if 
handled improperly; be especially careful when you clean these parts.
3. The internal coil and other components of the outdoor unit must be 
cleaned every year. Consult your dealer or service center.
OPERATION button
Cooling operation  Stop
NOTE
CAUTION 
						

							22
CARE AND CLEANING (CONTINUED)
FilterThe filter behind the air intake grille should be checked and cleaned at least once 
every two weeks.
How to remove the filter 1.Grasp both ends of the air 
intake grille, and remove it by 
opening towards the front and 
pulling towards you.
2.Remove the filter attached to 
the rear of the air intake grille.
CleaningUse a vacuum cleaner to remove light dust. If there is sticky dust on the filter, 
wash the filter in lukewarm, soapy water, rinse it in clean water, and dry it.
How to replace the filter 1.With the FRONT mark of the  
filter at the front, align the two 
indentions near the mark with 
the hooks at the rear of the air 
intake grille, and then mount 
the filter.
2.Allow the edge of the air intake 
grille to slide into the top of the 
indoor unit, and then insert it 
all the way inside. 
3.Press in the bottom right and 
left corners of the air intake 
grille to attach the indoor unit.
Attach so that the round pins at the top right and left corners of the air intake grille 
are inserted into the grooves at the top right and left of the indoor unit.
Air intake grille
filter
filter
FRONT mark
Hook
Air intake grilleGroove
Pin
Air intake grille
NOTE 
						

							23
CARE AND CLEANING (CONTINUED)
WIRED REMOTE CONTROLLER
Cleaning the main unit and
Remote Controller• Wipe clean using a soft, dry cloth.
• To remove stubborn dirt, moisten a cloth in warm water no hotter than 104 °F, 
wring thoroughly, and then wipe.
• The air intake grille can be removed in order to wash it with water.
Removing and remounting the
air intake grilleRefer to “How to remove the filter” and “How to replace the filter” on page 22.
When using a footstool or the like, be careful not to let it tip over.
Washing the grille with water• Clean the grille gently using a soft sponge, or the like. Then wipe away any 
remaining moisture.
• Neutral detergent may be used to remove stubborn dirt. Then rinse thoroughly 
with water and wipe away any remaining moisture.
A separately sold wired remote controller (CZ-RD515U) used with this air 
conditioner is also available. If you wish to use the wired remote control function, 
you will need to purchase both the optional wired remote controller and its 
connection kit (CZ-RC515U).
CAUTION 
						

							24
TROUBLESHOOTING (BEFORE CALLING FOR SERVICE)
If your air conditioner does not work properly, first check the following points before requesting service. If it still does not
work properly, contact your dealer or service center.
OPERATING RANGE
The air conditioner is operable within the temperature ranges as listed below: 
Trouble Possible Cause Remedy
Air conditioner does not run at all. 1.  Power failure.  1. Restore power.
2. Leakage circuit breaker tripped.
2. Contact service center.
3. Line voltage is too low. 3. Consult your electrician or dealer.
4.  Batteries in remote controller have 
run down.4. Replace batteries.
OPERATION lamp blinks and air 
conditioner does not operate.Trouble in system. Contact service center.
Compressor runs but soon stops. Obstruction in front of condenser coil.
(Outdoor Unit)Remove obstruction.
Poor cooling performance. 1.  Dirty or clogged air filter. 1.  Clean air filter to improve airflow.
2.  Heat source or many people in room. 2.  Eliminate heat source if possible.
3.  Doors and/or windows are open. 3.  Shut them to keep the heat out.
4.  Obstacle near air intake or air 
discharge port.4.  Remove it to ensure good airflow.
5.  Thermostat is set too high for cooling. 5.  Set the temperature lower.
Clicking sound is heard from the air 
conditioner.In cooling operation, any plastic parts 
may shrink due to a sudden 
temperature change. In this event, a 
clicking sound may occur.This is normal, and the sound will soon 
disappear.
OPERATION lamp lights but outdoor 
unit will not run.The use of cellular phones near the air 
conditioner may cause disturbance to 
its normal operation.1.  Turn off the power then restart the 
air conditioner after a while.
2.  Consult your dealer.
Temperature  Indoor air temperature  Outdoor air temperature
COOLING Max.  95 °F DB / 71 °F WB  115 °F DB
Min.  67 °F DB / 57 °F WB  14 °F DB 
						

							25
SPECIFICATIONS
Model No.Indoor Unit
CS-MKS9NKU CS-MKS7NKU
Single-phase, 208-230 V, 60 Hz
Heating Capacity
Operation
Sound
Unit Dimensions (H×W×D)
(Indoor unit : Include panel)
Net Weight Power Source
Cooling CapacitykW
BTU/h
kW
BTU/h
inch(mm)
lbs.(kg)
Cooling Operation (H/M/L)
Heating Operation (H/M/L)dB(A)
dB(A)33/30/27
- -
7,5002.20
-
11-7/32×32-15/32×7-7/16
(285×825×189)
19.8(9.0)34/31/28
- -
9,0002.65
-
11-7/32×32-15/32×7-7/16
(285×825×189)
19.8(9.0)36/33/29
- -
11,9003.50
-
11-7/32×32-15/32×7-7/16
(285×825×189)
19.8(9.0) CS-MKS12NKU
Model No.Outdoor Unit
CU-4KS24NBU CU-3KS19NBU
Single-phase, 208-230 V, 60 Hz
Heating Capacity
Operation
Sound
Unit Dimensions (H×W×D)
Net Weight Power Source
Cooling CapacitykW
BTU/h
kW
BTU/h
inch(mm)
lbs.(kg)
Cooling Operation (Hi)
Heating Operation (Hi)dB(A)
dB(A)50
- -
18,800 [ 9,800 ~ 18,800 ]5.50 [ 2.90 ~ 5.50 ]
-
29-1/8×35-7/16×12-19/32
(740×900×320)
138.9(63.0)50
- -
25,400 [ 9,800 ~ 25,400 ]7.50 [ 2.90 ~ 7.50 ]
-
29-1/8×35-7/16×12-19/32
(740×900×320)
138.9(63.0)53
- -
30,600 [ 9,800 ~ 30,600 ]9.00 [ 2.90 ~ 9.00 ]
-
35-1/32×35-7/16×12-19/32
(890×900×320)
174.2(79.0) CU-4KS31NBU 
						

							Operating Instructions
CS-MKS18NKU
CS-MKS24NKU
(852-6-4181-215-00-1)
APPENDIX B
A-2 
						

							This air conditioner uses the refrigerant R410A.
Split System Air Conditioner
Model No.
Panasonic Corporation
1006 Kadoma, Kadoma City, Osaka, Japan
85264181215001
Indoor Units
CS-MKS18NKU
CS-MKS24NKU
Outdoor Units
CU-3KS19NBU
CU-4KS24NBU
CU-4KS31NBU
Operating Instructions
Before operating the unit, read these operating instructions thoroughly and keep them for future reference.
CV6233187631 
						

							2
FEATURES
This air conditioner is an inverter type unit that automatically adjusts capability as appropriate. Details on these functions
are provided below; refer to these descriptions when using the air conditioner.
• Microprocessor Controlled Operation
The interior compartment of the remote controller
contains several features to facilitate automatic operation, 
easy logically displayed for easy use.
• Simple One-touch Remote Controller
The remote controller has several features to facilitate 
automatic operation.
• 24-Hour ON or OFF Timer
This timer can be set to automatically turn the unit on or 
off at any time within a 24 hour period.
• 1-Hour OFF Timer
This timer can be set to automatically turn off the unit at 
any time after one hour.
• Night Setback
This function saves energy by controlling operation to 
provide a quieter operating sound than normal.
• Automatic and 3-step Fan Speed
Auto/High/Medium/Low• Air Sweep Control
This function moves a flap up and down in the air outlet, 
directing air in a sweeping motion around the room and 
providing comfort in every corner.
• Auto. Flap Control
This automatically sets the flap to the optimum position 
during heating, cooling, and drying operation.
• Automatic Restart Function for Power Failure
Even when power failure occurs, preset programmed 
operation can be reactivated once power resumes.
• High Power Operation
The unit operates at maximum output for 30 minutes, 
regardless of the desired temperature.
The fan speed is 1 step above “High”.
• Quiet Operation
The fan rotates slower than the fan speed setting to 
provide a quieter operating sound.
CONTENTS
Page Page
FEATURES ............................................................................. 2
PRODUCT INFORMATION .................................................... 2
SAFETY PRECAUTIONS ....................................................... 2
INSTALLATION LOCATION .................................................... 3
ELECTRICAL REQUIREMENTS ........................................... 3
SAFETY INSTRUCTIONS...................................................... 3
NAMES OF PARTS ................................................................ 5
USING THE REMOTE CONTROLLER ................................ 10
OPERATION WITH THE REMOTE CONTROLLER ............ 12
1. Operation .............................................................. 12
2. Adjusting the Fan Speed ....................................... 13
3. Fan Only ................................................................ 13
4. Night Setback Mode .............................................. 14
5. QUIET Mode ......................................................... 15
6. HIGH POWER Mode............................................. 15SPECIAL REMARKS ........................................................... 16
SETTING THE TIMER ......................................................... 17
USING THE 1-HOUR OFF TIMER....................................... 19
TIPS FOR ENERGY SAVING .............................................. 19
ADJUSTING THE AIRFLOW DIRECTION........................... 20
OPERATION WITHOUT THE REMOTE CONTROLLER ..... 21
CARE AND CLEANING ....................................................... 21
WIRED REMOTE CONTROLLER........................................ 23
TROUBLESHOOTING (BEFORE CALLING FOR SERVICE) .... 24
OPERATING RANGE ........................................................... 24
SPECIFICATIONS ................................................................ 25
PRODUCT INFORMATION
If you have problems or questions concerning your Air 
Conditioner, you will need the following information. 
Model and serial numbers are on the nameplate on the 
bottom of the cabinet.
Model No.  __________________________________
Serial No. ___________________________________
Date of purchase _____________________________
Dealer’s address _____________________________
Phone number _______________________________
SAFETY PRECAUTIONS
The following symbols used in this manual, alert you 
to potentially dangerous conditions to users, service 
personnel or the appliance:
This symbol refers to a hazard or 
unsafe practice which can result in 
severe personal injury or death.
This symbol refers to a hazard or 
unsafe practice which can result in 
personal injury or product or property 
damage.
CAUTION 
						

							3
INSTALLATION LOCATION
• We recommend that this air conditioner be installed properly by qualified 
installation technicians in accordance with the Installation Instructions 
provided with the unit.
• Before installation, check that the voltage of the electric supply in your home or 
office is the same as the voltage shown on the nameplate.
ELECTRICAL REQUIREMENTS
1.All wiring must conform to the local electrical codes. Consult your dealer or a 
qualified electrician for details.
2.Each unit must be properly grounded with a ground (or earth) wire or through 
the supply wiring.
3.Wiring must be done by a qualified electrician.
SAFETY INSTRUCTIONS
• Read this Instruction Manual carefully before using this air conditioner. If 
you still have any difficulties or problems, consult your dealer for help.
• This air conditioner is designed to give you comfortable room conditions. 
Use this only for its intended purpose as described in this Instruction 
Manual. • Do not install this air conditioner where there are fumes or flammable 
gases, or in an extremely humid space such as a greenhouse.
• Do not install the air conditioner where excessively high heat-
generating objects are placed.
Avoid:To protect the air conditioner from heavy corrosion, avoid installing the outdoor 
unit where salty sea water can splash directly onto it or in sulphurous air near a 
spa.
Pull off the power plug from a receptacle, or switch off the breaker, or switch off 
the power disconnecting mean to isolate the air conditioner from the main power 
supply when not in use for a long time.
• Confirm to authorized dealer or specialist on usage of specified 
refrigerant type.
Using of refrigerant other than the specified type may cause product 
damage, burst and injury etc.
• Never touch the unit with wet hands.
• Never use or store gasoline or other flammable vapor or liquid near the 
air conditioner — it is very dangerous.
• Do not use this appliance in a potentially explosive atmosphere.
• This air conditioner has no ventilator for intaking fresh air from 
outdoors. You must open doors or windows frequently when you use 
gas or oil heating appliances in the same room, which consume a lot of 
oxygen from the air. Otherwise there is a risk of suffocation in an 
extreme case.
• Do not swallow the battery.
• After removing the battery from remote controller, keep it away from the 
reach of children. The battery can cause death by suffocation if 
swallowed.
• When inserting the battery, make sure the polarities (+ and -) are correct.
NOTE