Panasonic CS-ME7QKUA User Manual
Order No: PAPAMY1312045CE
Indoor Unit
CS-ME7QKUA
Destination
U.S.A.
Canada
Please file and use this manual together with the service manual for Model No. CU-5E36QBU, Order No. PAPAMY1312037CE.
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the products dealt with in this service information by anyone else could result in serious injury or death.
PRECAUTION OF LOW TEMPERATURE
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
© Panasonic Corporation 2013
TABLE OF CONTENTS
1. Safety Precautions ............................................. 3
2. Specification ....................................................... 5
3. Features ............................................................... 7
4. Location of Controls and Components ............ 8
15.4 Self-diagnosis Method ................................36
16. Disassembly and Assembly Instructions ......63
16.1 Indoor Electronic Controllers,
Cross Flow Fan and Indoor Fan Motor
Removal Procedures ..................................63
4.1 Indoor Unit .................................................... 8
4.2 Outdoor Unit ................................................. 8
4.3 Remote Control ............................................ 8
5. Dimensions ......................................................... 9
5.1 Indoor Unit .................................................... 9
6. Refrigeration Cycle Diagram ........................... 10
7. Block Diagram .................................................. 11
8. Wiring Connection Diagram ............................ 12
8.1 Indoor Unit .................................................. 12
9. Electronic Circuit Diagram .............................. 13
9.1 Indoor Unit .................................................. 13
10. Printed Circuit Board ....................................... 14
10.1 Indoor Unit .................................................. 14
11. Installation Instruction ..................................... 16
11.1 Select the Best Location ............................. 16
11.2 Indoor Unit .................................................. 17
12. Operation Control ............................................. 21
12.1 Basic Function ............................................ 21
12.2 Indoor Fan Motor Operation ....................... 22
12.3 Outdoor Fan Motor Operation .................... 23
12.4 Airflow Direction .......................................... 23
12.5 Quiet Operation (Cooling Mode/Cooling
Area of Dry Mode) ...................................... 24
12.6 Quiet Operation (Heating) .......................... 24
12.7 Powerful Mode Operation ........................... 25
12.8 Timer Control .............................................. 25
12.9 Auto Restart Control ................................... 25
12.10 Indication Panel .......................................... 26
17. Exploded View and Replacement Parts
List .....................................................................67
17.1 Indoor Unit ..................................................67
13. Operation Control
(For Multi Split Connection) ............................ 27
13.1 Cooling operation ....................................... 27
13.2 Soft Dry Operation ...................................... 27
13.3 Heating Operation ...................................... 27
13.4 Automatic Operation ................................... 27
13.5 Indoor Fan Motor Operation ....................... 28
13.6 Powerful Mode Operation ........................... 28
13.7 Auto restart control ..................................... 28
13.8 Indication Panel .......................................... 28
14. Servicing Mode ................................................. 29
14.1 Auto Off/On Button ..................................... 29
14.2 Remote Control Button ............................... 30
15. Troubleshooting Guide .................................... 31
15.1 Refrigeration Cycle System ........................ 31
15.2 Breakdown Self Diagnosis Function ........... 33
15.3 Error Code Table ........................................ 34
2
1. Safety Precautions
Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.
Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the
power plug and main circuit for the model installed.
The caution items stated here must be followed because these important contents are related to safety. The
meaning of each indication used is as below. Incorrect installation or servicing due to ignoring of the instruction
will cause harm or damage, and the seriousness is classified by the following indications.
WARNING
CAUTION
The items to be followed are classified by the symbols:
Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to user the operation,
care and maintenance as stated in instructions. Please remind the customer to keep the operating instructions for
future reference.
1. Do not modify the machine, part, material during repairing service.
This indication shows the possibility of causing death or serious injury
This indication shows the possibility of causing injury or damage to properties.
This symbol denotes item that is PROHIBITED from doing.
WARNING
2. If wiring unit is supplied as repairing part, do not repair or connect the wire even only partial wire break. Exchange the whole wiring unit.
3. Do not wrench the fasten terminal. Pull it out or insert it straightly.
4. Engage authorized dealer or specialist for installation and servicing. If installation of servicing done by the user is defective, it will cause water
leakage, electrical shock or fire.
5. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electric shock or fire.
6. Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, water leakage, fire
or electrical shock.
7. Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not properly done,
the set will drop and cause injury.
8. For electrical work, follow the local national wiring standard, regulation and the installation instruction. An independent circuit and single outlet
must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire.
9. This equipment is strongly recommended to be installed with Earth Leakage Circuit Breaker (ELCB) or Residual Current Device (RCD).
Otherwise, it may cause electrical shock and fire in case equipment breakdown or insulation breakdown.
10. Do not use joint cable for indoor/outdoor connection cable. Use the specified indoor/outdoor connection cable, refer to installation instruction
CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor/outdoor connection. Clamp the cable so that no external force
will be acted on the terminal. If connecting or fixing is not perfect, it will cause heat up or fire at the connection.
11. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will cause
heat-up or fire at the connection point of terminal, fire or electrical shock.
12. When install or relocate air conditioner, do not let any substance other than the specified refrigerant, eg. air etc. mix into refrigeration cycle
(piping). (Mixing of air etc. will cause abnormal high pressure in refrigeration cycle and result in explosion, injury etc.).
13. Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit at veranda of high rise building, child may
climb up to outdoor unit and cross over the handrail and causing accident.
14. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and
telephone. Otherwise, it may cause electrical shock in case equipment breakdown or insulation breakdown.
15. Keep away from small children, the thin film may cling to nose and mouth and prevent breathing.
16. Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet with
other electrical appliances. Poor contact, poor insulation or over current will cause electrical shock or fire.
17. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare may
break and cause refrigerant gas leakage.
18. For R410A models, when connecting the piping, do not use any existing (R22) pipes and flares nuts. Using such same may cause
abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. In case of using existing (R22)
pipes during installation of R410A models, must carry out pump down properly to collect back the refrigerant and oil before installation
new unit.
Thickness of copper pipes used with R410A must be more than 1/64". Never use copper pipes thinner than 1/64".
It is desirable that the amount of residual oil is less than 0.0014 oz/32.8ft.
3
19. During installation, install the refrigerant piping properly before run the compressor. (Operation of compressor without fixing refrigeration piping
and valves at opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.).
20. During pump down operation, stop the compressor before remove the refrigeration piping. (Removal of refrigeration piping while compressor is
operating and valves are opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury
etc.).
21. After completion of installation or service, confirm there is no leakage of refrigerant gas. It may generate toxic gas when the refrigerant
contacts with fire.
22. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when the refrigerant contacts with fire.
23. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.
24. Must not use other parts except original parts describe in catalog and manual.
25. Using of refrigerant other than the specified type may cause product damage, burst and injury etc.
1. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the
unit, it may cause fire.
2. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage
the furniture.
3. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare
may break and cause refrigerant gas leakage.
4. Do not touch outdoor unit air inlet and aluminium fin. It may cause injury.
CAUTION
5. Select an installation location which is easy for maintenance.
6. Pb free solder has a higher melting point than standard solder; typically the melting point is 50°F – 70°F (30°C – 40°C) higher. Please use
a high temperature solder iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C).
Pb free solder will tend to splash when heated too high (about 1100°F / 600°C).
7. Do not release refrigerant during piping work for installation, servicing, reinstallation and during repairing a refrigerant parts. Take
care of the liquid refrigerant, it may cause frostbite.
8. Installation or servicing work: It may need two people to carry out the installation or servicing work.
9. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.
10. Do not sit or step on the unit, you may fall down accidentally.
11. Do not touch the sharp aluminium fins or edges of metal parts.
If you are required to handle sharp parts during installation or servicing, please wear hand glove.
Sharp parts may cause injury.
4
2. Specification
Model
Performance Test Condition ARI
Power Supply
Min. Mid. Max. Min. Mid. Max.
Capacity
Running Current A - 2.8 - - 2.5 -
Input Power W 340 500 810 340 500 810
Cooling
Indoor Noise (H / L / QLo)
Heating
Indoor Noise (H / L / QLo)
Indoor Fan
Speed
Moisture Removal L/h (Pt/h) 0.4 (0.8)
Indoor Airflow
Dimension
Weight Net (I/D) kg (lb) 9 (20)
Piping
EER
Capacity
Running Current A - 4.1 - - 3.7 -
Input Power W 300 740 1.23k 300 740 1.23k
COP
Type Cross-flow fan
Material ASG20K1
Motor Type Transistor (8 poles)
Input Power W 47.0
Output Power W 40
QLo rpm
Lo rpm
Me rpm
Hi rpm
SHi rpm
QLo m
Lo m3/min (ft3/min)
Me m3/min (ft3/min)
Hi m3/min (ft3/min)
SHi m3/min (ft3/min)
Height(I/D) mm (inch) 290 (11-7/16)
Width (I/D) mm (inch) 870 (34-9/32)
Depth (I/D) mm (inch) 204 (8-1/16)
Pipe Diameter
(Liquid / Gas)
Indoor CS-ME7QKUA
Outdoor CU-5E36QBU
Phase, Hz Single, 60
V 208 230
kW 1.80 2.01 2.90 1.80 2.01 2.90
BTU/h 6100 6900 9900 6100 6900 9900
W/W 5.29 4.02 3.58 5.29 4.02 3.58
Btu/hW 17.95 13.80 12.20 17.95 13.80 12.20
dB-A 39 / 25 / 20 40 / 25 / 20
Power Level dB 55 / - / - 56 / - / -
kW 1.20 3.21 4.10 1.20 3.21 4.10
BTU/h 4100 10900 14000 4100 10900 14000
W/W 4.00 4.34 3.33 4.00 4.34 3.33
Btu/hW 13.65 14.75 11.40 13.65 14.75 11.40
dB-A 41 / 29 / 26 42 / 29 / 26
Power Level dB 57 / - / - 58 / - / -
Cooling : 620
Heating : 750
Cooling : 720
Heating : 850
Cooling : 920
Heating : 1060
Cooling : 1120
Heating : 1270
Cooling : 1250
Heating : 1390
3
/min (ft3/min)
mm (inch) 6.35 (1/4) / 9.52 (3/8)
Cooling : 5.2 (185)
Heating : 6.4 (225)
Cooling : 6.4 (225)
Heating : 7.5 (265)
Cooling : 8.8 (310)
Heating : 9.8 (345)
Cooling : 11.1 (390)
Heating : 12.1 (425)
Cooling : 12.6 (445)
Heating : 13.5 (475)
5
Model
Drain Hose
Indoor Heat
Exchanger
Air Filter
Power Supply Cord A -
Indoor Operation Range
Outdoor Operation Range
Indoor Operation Range
Outdoor Operation Range
1. Cooling capacities are based on indoor temperature of 27°C DRY BULB (80.6°F DRY BULB), 19.0°C WET BULB (66°F WET BULB) and
outdoor air temperature of 35°C DRY BULB (95°F DRY BULB), 24°C WET BULB (75.2°F WET BULB)
2. Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and outdoor air temperature of 7°C Dry Bulb (44.6°F
Dry Bulb), 6°C Wet Bulb (42.8°F Wet Bulb)
3. Specifications are subjected to change without prior notice for further improvement.
Inner Diameter mm (inch) 16.7 (5/8)
Length mm (inch) 650 (25-5/8)
Fin Material Aluminium (Pre Coat)
Fin Type Slit Fin
Row x Stage x
FPI
Size (W x H x L) mm (inch) 25.4 x 315 x 610 (1 x 12-3/8 x 24)
Material Polypropelene
Type One-touch
Power Supply Outdoor
DRY BULB WET BULB
(Cooling)
(Cooling)
(Heating)
(Heating)
Indoor CS-ME7QKUA
Outdoor CU-5E36QBU
2 x 15 x 21
Maximum °F (°C) 89.6 (32) 73.4 (23)
Minimum °F (°C) 60.8 (16) 51.8 (11)
Maximum °F (°C) 114.8 (46) 78.8 (26)
Minimum °F (°C) 14.0 (-10) -
Maximum °F (°C) 86.0 (30) -
Minimum °F (°C) 60.8 (16) -
Maximum °F (°C) 75.2 (24) 64.4 (18)
Minimum °F (°C) 5.0 (-15) 3.2 (-16)
6
3. Features
Inverter Technology
o Wider output power range
o Energy saving
o Quick Cooling
o More precise temperature control
Environment Protection
o Non-ozone depletion substances refrigerant (R410A)
Long Installation Piping
o Long piping up to 82 ft (25 meters) for 1 room
Easy to use remote control
Quality Improvement
o Random auto restart after power failure for safety restart operation
o Gas leakage protection
o Prevent compressor reverse cycle
o Inner protector to protect Compressor
o Noise prevention during soft dry operation
Operation Improvement
o Quiet mode to reduce the indoor unit operating sound
o Powerful mode to reach the desired room temperature quickly
Serviceability Improvement
o Breakdown Self Diagnosis function
7
4. Location of Controls and Components
4.1 Indoor Unit
4.2 Outdoor Unit
4.3 Remote Control
8
5. Dimensions
5.1 Indoor Unit
9
6. Refrigeration Cycle Diagram
10
7. Block Diagram
11
8. Wiring Connection Diagram
8.1 Indoor Unit
12
9. Electronic Circuit Diagram
9.1 Indoor Unit
13
10. Printed Circuit Board
10.1 Indoor Unit
10.1.1 Main Printed Circuit Board
14
10.1.2 Power Printed Circuit Board
10.1.3 Indicator Printed Circuit Board
15
11. Installation Instruction
11.1 Select the Best Location
11.1.1 Indoor Unit
Do not install the unit in excessive oil fume area
such as kitchen, workshop and etc.
There should not be any heat source or steam
near the unit.
There should not be any obstacles blocking the air
circulation.
A place where air circulation in the room is good.
A place where drainage can be easily done.
A place where noise prevention is taken into
consideration.
Do not install the unit near the door way.
Ensure the spaces indicated by arrows from the
wall, ceiling, fence or other obstacles.
Mount with the lowest moving parts at least 8 ft
(2.4 m) above floor or grade level.
11.1.2 Indoor/Outdoor Unit Installation
Diagram
16
11.2 Indoor Unit
11.2.1 How to Fix Installation Plate
The mounting wall shall be strong and solid enough to prevent it from the vibration.
The center of installation plate should be at more than at right and left of the wall.
The distance from installation plate edge to ceiling should more than .
From installation plate left edge to unit’s left side is .
From installation plate right edge to unit’s right side is .
B : For left side piping, piping connection for liquid should be about from this line.
○
: For left side piping, piping connection for gas should be about from this line.
1 Mount the installation plate on the wall with 5 screws or more (at least 5 screws).
(If mounting the unit on the concrete wall, consider using anchor bolts.)
o Always mount the installation plate horizontally by aligning the marking-off line with the thread and using
a level gauge.
2 Drill the piping plate hole with ø2 3/4" (ø70 mm) hole-core drill.
o Line according to the left and right side of the installation plate. The meeting point of the extended line is
the center of the hole. Another method is by putting measuring tape at position as shown in the diagram
above. The hole center is obtained by measuring the distance namely 5 1/16" (128 mm) for left and right
hole respectively.
o Drill the piping hole at either the right or the left and the hole should be slightly slanting to the outdoor
side.
11.2.2 To Drill a Hole in the Wall and
Install a Sleeve of Piping
1 Insert the piping sleeve to the hole.
2 Fix the bushing to the sleeve.
3 Cut the sleeve until it extrudes about 19/32"
(15 mm) from the wall.
1 Finish by sealing the sleeve with putty or
caulking compound at the final stage.
17
11.2.3 Indoor Unit Installation
11.2.3.1 For the right rear piping
11.2.3.2 For the right bottom piping
11.2.3.3 For the embedded piping
(This can be used for left rear piping and bottom
piping also.)
18
11.2.4 Connect the Cable to the Indoor Unit
1. The inside and outside connection cable can
be connected without removing the front grille.
2. Unscrew the conduit cover and fix the conduit
connector to conduit cover with lock nut, then
secure it against chassis.
3. Connection cable between indoor unit and
outdoor unit should be UL listed or CSA
approved 4 conductor wires minimum AWG16
in accordance with local electric codes.
o Ensure the colour of wires of outdoor unit
and terminal number are the same as the
indoor's respectively.
o Earth lead wire shall be Yellow/Green
(Y/G) in colour and shall be longer than
other lead wires as shown in the figure for
electrical safety in case of the slipping.
19
11.2.5 Wiring Stripping and connecting requirement
11.2.5.1 Cutting and flaring the piping
1 Please cut using pipe cutter and then remove the burrs.
2 Remove the burrs by using reamer. If burrs are not removed, gas leakage may be caused. Turn the piping
end down to avoid the metal powder entering the pipe.
3 Please make flare after inserting the flare nut onto the copper pipes.
20
12. Operation Control
12.1 Basic Function
Inverter control, which equipped with a microcomputer in determining the most suitable operation mode as time
passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operation
mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and
performing temperature shifting. The compressor at outdoor unit is operating following the frequency instructed by
the microcomputer at indoor unit that judging the condition according to internal setting temperature and intake air
temperature.
12.1.1 Internal Setting Temperature
Once the operation starts, remote control setting temperature will be taken as base value for temperature shifting
processes. These shifting processes are depending on the air conditioner settings and the operation environment.
The final shifted value will be used as internal setting temperature and it is updated continuously whenever the
electrical power is supplied to the unit.
12.1.2 Cooling Operation
12.1.2.1 Thermostat control
Compressor is OFF when intake Air Temperature - Internal Setting Temperature < 2.7°F.
Compressor is ON after waiting for 3 minutes, if the Intake Temperature - Internal Setting Temperature >
Compressor OFF point.
12.1.3 Soft Dry Operation
12.1.3.1 Thermostat control
Compressor is OFF when Intake Temperature - Internal Setting Temperature < -3.6°F.
Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature >
Compressor OFF point.
12.1.4 Heating Operation
12.1.4.1 Thermostat control
Compressor is OFF when Intake Temperature - Internal Setting Temperature > 3.6°F.
Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature <
Compressor OFF point
21
Loading...