Panasonic S-24MF2U6 User manual

F569694
Operating Instructions
VRF System Air Conditioner
Model No.
This air conditioner uses the refrigerant R410A.
Before operating the unit, read these operating instructions thoroughly and keep them for future reference.
* Salt-Air Damage Resistant Specifications.
Indoor Unit
7 9 12 18
Nominal Capacity
F2 Low Silhouette Ducted
S-07MF2U6
S-24MF2U6
36
U-36LE1U6
U-36LE1U6E*
52
U-52LE1U6
U-52LE1U6E*
S-09MF2U6 S-12MF2U6 S-18MF2U6
Indoor Unit Type
Type
Outdoor Units
Nominal Capacity
ME2 2WAY VRF System
MF1 3WAY VRF System
LE1 Mini VRF System
Outdoor Unit Type
Type
15
S-15MF2U6
24 36 48
S-36MF2U6 S-48MF2U6
54
S-54MF2U6
72
U-72ME2U9
U-72MF1U9
96
U-96ME2U9
U-96MF1U9
120
U-120ME2U9
144
U-144ME2U9
zConnectable outdoor unit lineup
This booklet is the operating instructions for indoor unit. Regarding the outdoor unit, see the operating
instructions supplied with the outdoor unit.

2
CONTENTS
Page
PRODUCT INFORMATION ...........................................................................................................2
ALERT SYMBOLS.........................................................................................................................2
INSTALLATION LOCATION...........................................................................................................3
ELECTRICAL REQUIREMENTS ..................................................................................................3
SAFETY INSTRUCTIONS.............................................................................................................3
OPERATION CONDITION ............................................................................................................5
NAMES OF PARTS .......................................................................................................................6
Timer Remote Controller (Optional parts) .....................................................................................6
Refer to the Operating Instructions attached to the optional Timer Remote Controller.
High-spec Wired Remote Controller (Optional parts)....................................................................6
Refer to the Operating Instructions attached to the optional High-spec Wired Remote Controller.
ADJUSTING AIRFLOW DIRECTION ............................................................................................6
SPECIAL REMARKS ....................................................................................................................7
CARE AND CLEANING ................................................................................................................8
TROUBLESHOOTING ..................................................................................................................9
CHECK BEFORE REQUIRING SERVICES................................................................................10
TIPS FOR ENERGY SAVING .....................................................................................................10
SPECIFICATIONS.......................................................................................................................11
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 side of the unit.
Model No. _________________________________ Serial No. _______________________
Date of purchase ______________________________________________________________
Dealer’s address ______________________________________________________________
Phone number________________________________________________________________
ALERT SYMBOLS
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.
NOTE
NOTE
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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
SAFETY INSTRUCTIONS
• Read these Operating Instructions 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 these Operating Instructions.
• 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.
• All wiring must conform to the local electrical codes. Consult your dealer or a qualified
electrician for details.
• It is strongly recommended to be installed with Earth Leakage Circuit Breaker (ELCB) or
Residual Current Device (RCD) to prevent electric shock or fire.
• Each unit must be properly grounded with a ground (or earth) wire or through the supply
wiring.
• Wiring must be done by a qualified electrician.
To warm up the system, the power mains must be turned on
at least five (5) hours before operation. Leave the power
mains ON unless you will not be using this appliance for an
extended period.
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.
• To prevent possible hazards from insulation failure, the unit must be
grounded.
• Do not clean inside the indoor and outdoor units by users. Engage
authorized dealer or specialist for cleaning.
• In case of malfunction of this appliance, do not repair by yourself. Contact to the
sales dealer or service dealer for a repair.
• Check for a leaking refrigerant! Refrigerant gas may produce a toxic gas if it comes
in contact with fire.
Power mains
ON
NOTE
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4
• For safety, be sure to turn the air conditioner off and also to disconnect the
power before cleaning or servicing.
• 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 in case of emergency.
• Do not turn the air conditioner on and off from the power mains switch. Use the ON/
OFF operation button.
• Do not stick anything into the air outlet of the outdoor unit.
This is dangerous because the fan is rotating at high speed.
• Do not touch the air inlet or the sharp aluminum
fins of the outdoor unit. You may get injured.
• Keep the fire alarm and the air outlet at least
5 feet (1.5 m) away from the unit.
• Do not let children play with the air conditioner.
• Do not cool or heat the room too much if babies or invalids are present.
• Do not sit or step on the unit.
You may fall down accidentally.
• Do not stick any object
into the FAN CASE.
You may be injured and
the unit may be damaged.
The compressor may occasionally stop during thunderstorms.
This is not a mechanical failure. The unit automatically recovers after a few minutes.
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5
OPERATION CONDITION
Use this air conditioner under the following temperature range.
3 way system
2 way system
Mini VRF system
* DBT: Dry bulb temperature
* WBT: Wet bulb temperature
Temperature range (°F/°C) Indoor Outdoor
*DBT *WBT *DBT *WBT
Heating & Cooling Max. 86/30 –/– 86/30 75/24
Min. 59/15 –/– 16/-8.8 14/-10
Cooling Max. 90/32 77/25 115/46 –/–
Min. 64/17.8 57/14 14/-10 –/–
Heating Max. 86/30 –/– 75/24 64/17.8
Min. 61/16 –/– -4/-20 -4/-20
Temperature range (°F/°C) Indoor Outdoor
*DBT *WBT *DBT *WBT
Cooling Max. 90/32 77/25 122/50 –/–
Min. 64/17.8 57/14 14/-10 –/–
Heating Max. 86/30 –/– 75/24 64/17.8
Min. 61/16 –/– -4/-20 -4/-20
Temperature range (°F/°C) Indoor Outdoor
*DBT *WBT *DBT *WBT
Cooling Max. 90/32 77/25 115/46 –/–
Min. 64/17.8 57/14 14/-10 –/–
Heating Max. 86/30 –/– 75/24 64/17.8
Min. 61/16 –/– -4/-20 -4/-20
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NAMES OF PARTS
Timer Remote Controller (Optional parts)
High-spec Wired Remote Controller (Optional parts)
ADJUSTING AIRFLOW DIRECTION
INDOOR UNIT
LOW SILHOUETTE DUCTED
F2 type (standard static pressure)
Refer to the Operating Instructions
attached to the optional Timer Remote
Controller.
Refer to the Operating Instructions
attached to the optional High-spec Wired
Remote Controller.
Low silhouette ducted type (F2)
This air conditioner is not equipped with air outlet parts. These must be obtained locally. Please
refer to the manual of the locally adopted air outlet parts.
Air outlet duct* Suspension bolt*
Air outlet grille*
Bolt anchor*
Indoor unit
Ceiling material*
* Field supplied
Air intake duct*
Air intake grille*
NOTE
(CZ-RTC2)
NOTE
(CZ-RTC3)
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7
SPECIAL REMARKS
How it works • Once the room temperature reaches the level that was set, the unit repeats the cycle of
turning on and off automatically.
• In order to prevent the humidity in the room from rising again, the indoor fan also turns off
when the unit stops operating.
• The fan speed is set to ‘‘LO.’’ automatically, and cannot be adjusted.
• ‘‘DRY’’ operation is not possible if the outdoor temperature is 59°F or less.
Heating performance • Because this appliance heats a room by utilizing the heat of the outside air (heat pump
system), the heating efficiency will fall off when the outdoor temperature is very low. If
sufficient heat cannot be obtained with this heat pump, use another heating appliance in
conjunction with this unit.
Defrosting • When the outdoor temperature is low, frost or ice may form on the outdoor heat exchanger
coil, reducing the heating performance. When this happens, a microcomputer-controlled
defrosting system operates. At the same time, the fan on the indoor unit stops (or runs at
very low speed in some cases) and the ‘‘STANDBY’’ indicator appears on the display until
defrosting is completed. Heating operation then restarts after several minutes. (This interval
will vary slightly depending upon the outdoor temperature and the way in which frost forms.)
(standby) on the display • For several minutes after the start of heating operation, the indoor fan will not start running
(or it will run at very low speed in some cases) until the indoor heat exchanger coil has
warmed up sufficiently. This is because a cold draft prevention system is operating. During
this period, the ‘‘ ’’ (standby) indicator remains displayed.
•
(standby) remains displayed during defrosting or when the compressor has been turned
off (or when the unit is running at very low speed) by the thermostat when the system is in
the heating mode.
• Upon completion of defrosting and when the compressor is turned on again, ‘‘ ’’ (standby)
will turn off automatically as heating operation resumes.
Should the power fail while the unit is running
If the power supply for this unit is temporarily cut off, the unit will automatically resume
operation (once the power is restored) using the same settings before the power was cut off.
‘‘DRY’’ Operation
Heating Operation
NOTE
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CARE AND CLEANING
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.
Air intake and outlet side
(Indoor unit)
Clean the air intake and outlet side 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 air outlet side, 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
plastic parts 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.
Air filter
(Field supplied)
The air filter collects dust and other particles from the air and should be cleaned at regular
intervals as indicated in the table below. If the filter gets blocked, the efficiency of the air
conditioner drops greatly.
Ty p e F 2
Period (depending on filter specifications)
* Low Silhouette Ducted (F2) An air filter is not provided with this air conditioner at the time of shipment. To get clean air and
to extend the service life of the air conditioner, an air filter must be installed in the air intake.
For installation and cleaning the air filter, consult your dealer or service center.
The frequency with which the filter should be cleaned depends on the environment in which
the unit is used.
NOTE
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TROUBLESHOOTING
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 a service center.
INDOOR UNIT
OUTDOOR UNIT
Symptom Cause
Noise Sound like streaming water during
operation or after operation
• Sound of refrigerant liquid flowing inside unit
• Sound of drainage water through drain pipe
Cracking noise during operation or
when operation stops.
Cracking sound due to temperature changes of parts
Odor Discharged air is smelled during
operation.
Indoor odor components, cigarette odor and cosmetic odor accumurated in
the air conditioner and its air is discharged.
Unit inside is dusty. Consult your dealer.
Dewdrop Dewdrop gets accumurated near air
discharge during operation
Indoor moisture is cooled by cool wind and accumulated by dewdrop.
Fog Fog occurs during operation in cooling
mode.
(Places where large amounts of oil
mist exist at restaurants.)
• Cleaning is necessary because unit inside (heat exchanger) is dirty.
Consult your dealer as technical engineering is required.
• During defrost operation
Fan is rotating for a while even though operation
stops.
• Fan rotating makes operation smoothly.
• Fan may sometimes rotates because of drying heat exchanger due to
settings.
Dust Dust accumulation inside indoor unit is discharged.
At the initial high-speed operation, the fan may
sometimes rotate faster (for 3 to 30 minutes) than
the setting speed.
This is for operation check in order to confirm whether the fan motor rotation is
within use range.
Symptom Cause
No
operation
When power is turned ON instantly. Operation is not activated for the first approx. 3 minutes because compressor
protection circuit is activated.
When operation is stopped and
resumed immediately.
Noise Noise often occurs in heating mode. During defrost operation
Steam Steam often occurs in heating mode.
When stopped by remote controller, outdoor unit fan
is sometimes operating for a while even though
outdoor compressor is stopped.
Fan rotating makes operation smoothly.
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CHECK BEFORE REQUIRING SERVICES
If your air conditioner still does not work properly although you checked the points as described above, first stop the operation and
turn off the power switch. Then contact your dealer and report the serial number and symptom. Never repair your air conditioner by
yourself since it is very dangerous for you to do so. You also report if the inspection mark and the letters E, F, H, L, P in
combination with the numbers appear on the LCD of the remote controller.
TIPS FOR ENERGY SAVING
Avoid
• Do not block the air intake and outlet of the unit. If either is obstructed, the unit will not work well, and may be damaged.
• Do not let direct sunlight into the room. Use sunshades, blinds or curtains. If the walls and ceiling of the room are warmed by the
sun, it will take longer to cool the room.
Do
• Always try to keep the air filter clean. (Refer to “CARE AND CLEANING”.) A clogged filter will impair the performance of the unit.
• To prevent conditioned air from escaping, keep windows, doors and any other openings closed.
Should the power fail while the unit is running
If the power supply for this unit is temporarily cut off, the unit will automatically resume operation once power is restored using the
same settings before the power was interrupted.
Symptom Cause Remedy
Air conditioner does not run at
all although power is turned
on.
Power failure or after power failure Press ON/OFF operation button on remote controller
again.
Operation button is turned off. • Switch on power if breaker is turned off.
• If breaker has been tripped, consult your dealer
without turning it on.
Fuse blow out. If blown out, consult your dealer.
Poor cooling or heating
performance
Air intake or air discharge port of indoor
and outdoor units is clogged with dust or
obstacles.
Remove dust or obstruction.
Wind speed switch is set to “Low”. Change to “High” or “Strong”.
Improper temperature settings Refer to “TIPS FOR ENERGY SAVING”.
Room is exposed to direct sunlight in
cooling mode.
Doors and /or windows are open.
Air filter is clogged. Refer to “CARE AND CLEANING”.
Too much heat sources in room in cooling
mode.
Use minimum heat sources and in a short time.
Too many people in room in cooling mode. Reduce temperature settings or change to “High” or
“Strong”.
NOTE
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SPECIFICATIONS
Low Silhouette Ducted (F2 type)
Model Name S-07MF2U6 S-09MF2U6 S-12MF2U6 S-15MF2U6 S-18MF2U6 S-24MF2U6
Power Source 208 / 230 V, 60 Hz, 1PH
Cooling Capacity BTU/h 7,500 9,600 12,000 15,000 19,000 25,000
kW 2.2 2.8 3.5 4.4 5.6 7.3
Heating Capacity BTU/h 8,500 11,000 14,000 17,000 21,000 27,000
kW 2.5 3.2 4.1 5.0 6.2 7.9
Sound Pressure Level
(H/M/L) dB(A) 33/29/25 33/29/25 33/29/25 34/32/28 34/32/28 35/32/26
Unit Dimensions
H : inch (mm) 11-7/16 (290) 11-7/16 (290) 11-7/16 (290) 11-7/16 (290) 11-7/16 (290) 11-7/16 (290)
W : inch (mm) 31-1/2 (800) 31-1/2 (800) 31-1/2 (800) 31-1/2 (800) 31-1/2 (800) 39-3/8 (1000)
D : inch (mm) 27-9/16 (700) 27-9/16 (700) 27-9/16 (700) 27-9/16 (700) 27-9/16 (700) 27-9/16 (700)
Net Weight lbs. (kg)64 (29) 64 (29) 64 (29) 64 (29) 64 (29) 75 (34)
Model Name S-36MF2U6 S-48MF2U6 S-54MF2U6
Power Source 208 / 230 V, 60 Hz, 1PH
Cooling Capacity BTU/h 36,000 47,800 54,600
kW 10.6 14.0 16.0
Heating Capacity BTU/h 39,000 54,600 61,400
kW 11.4 16.0 18.0
Sound Pressure Level
(H/M/L) dB(A) 39/35/32 40/36/32 41/37/33
Unit Dimensions
H : inch (mm) 11-7/16 (290) 11-7/16 (290) 11-7/16 (290)
W : inch (mm) 55-1/8 (1400) 55-1/8 (1400) 55-1/8 (1400)
D : inch (mm) 27-9/16 (700) 27-9/16 (700) 27-9/16 (700)
Net Weight lbs. (kg)99 (45) 99 (45) 99 (45)
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F569694
BE0414-10814
© Panasonic Corporation 2014
Printed in China