Panasonic CS-MZ5SKE User manual

© Panasonic Corporation 2016.
Order No: PAPAMY1605060AE
Indoor Unit
CS-MZ5SKE
CS-MZ5SKE-M
Destination
Europe
Turkey
L.America
Croatia
Please file and use this manual together with the service manual for Model No. CU-2E12SBE CU-2E15SBE CU-2E18SBE
CU-3E23SBE, Order No. PAPAMY1601015CE, CU-3E18PBE CU-4E23PBE, Order No. PAPAMY1301048CE and CU-4E27PBE
CU-5E34PBE, Order No. PAPAMY1303046CE.
PRECAUTION OF LOW TEMPERATURE
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
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.
WARNING

2
CAUTION
Before performing any of the electrical installation works, please verify on which of the intended connection use. Generally
there are 2 types of indoor-outdoor connections:
○
A Single Connection (Single Indoor Unit connects with Single Outdoor Unit)
○
B Multiple Connection (Multiple Indoor Unit connect with Single Outdoor Unit)
Both connections have different connecting methods. Any mismatch connections will result in malfunctions.
The following illustration demonstrates the correct electrical works for both type.
○
A (Single Connection) ○ B (Multiple Connection)
Colour of wires (connection cable)
Terminals on the indoor unit
Terminals on the outdoor unit
(Power supply cord)
Terminals on the isolating devices
(Disconnecting means)
123
23
L1NS1
*
Connection for multi inverter model
(Outdoor power supply)
Please refer to the provided Installation Instructions for the detailed procedures for connecting cables to Indoor Unit.

3
TABLE OF CONTENTS
1.Safety Precautions ............................................. 4
2.Specifications ..................................................... 6
3.Location of Controls and Components ......... 14
3.1Indoor Unit .................................................. 14
3.2Remote Control .......................................... 14
4.Dimensions ....................................................... 15
4.1Indoor Unit .................................................. 15
5.Wiring Connection Diagram ............................ 16
5.1Indoor Unit .................................................. 16
6.Electronic Circuit Diagram .............................. 17
6.1Indoor Unit .................................................. 17
7.Printed Circuit Board ....................................... 18
7.1Indoor Unit .................................................. 18
8.Installation Instruction ..................................... 21
8.1Select the Best Location ............................ 21
8.2Indoor Unit .................................................. 22
9.Installation and Servicing Air Conditioner
using R32 .......................................................... 28
9.1About R32 Refrigerant ............................... 28
9.2Characteristics of R32 Refrigerant ............. 28
9.3Refrigerant piping installation • Tools used in
services ...................................................... 3 0 
9.4New installation, Relocation, Repairing of
Refrigerant Cycle System The Procedures 34
9.5Piping installation of R32 ............................ 35
9.6Installation, Relocation, and Service .......... 36
9.7Repairing of refrigerant cycle / Brazing point .
.................................................................... 40
9.8<Reference> Analysis method for no error
code, no cooling / no warming ................... 46
10.Operation Control ............................................ 48
10.1Basic Function ............................................ 48
10.2Indoor Fan Motor Operation ....................... 49
10.3Airflow Direction ......................................... 51
10.4Quiet Operation (Cooling Mode/Cooling Area
of Dry Mode) ............................................... 53
10.5Quiet Operation (Heating) .......................... 53
10.6Powerful Mode Operation .......................... 53
10.7Timer Control .............................................. 54
10.8Sleep Mode Operation ............................... 54
10.9Auto Restart Control ................................... 54
10.10Indication Panel .......................................... 55
10.11nanoe Operation ......................................... 55
10.12ECONAVI Operation .................................. 57
11.Operation Control (For Multi Split Connection)
........................................................................... 65
11.1Cooling operation ....................................... 65
11.2Soft Dry Operation...................................... 65
11.3Heating Operation ...................................... 65
11.4Automatic Operation .................................. 66
11.5Indoor Fan Motor Operation ....................... 66
11.6Powerful Mode Operation .......................... 66
11.7Auto Restart Control ................................... 66
11.8Indication Panel .......................................... 66
11.9Mild Dry Cooling Operation ........................ 66
12.Servicing Mode ................................................. 67
12.1Auto OFF/ON Button .................................. 67
12.2Remote Control Button ............................... 68
13.Troubleshooting Guide .................................... 69
13.1Refrigeration Cycle System ........................ 69
13.2Breakdown Self Diagnosis Function .......... 71
13.3Error Codes Table ...................................... 72
13.4Self-diagnosis Method ................................ 74
14.Disassembly and Assembly Instructions .... 103
14.1Indoor Electronic Controllers, Cross Flow
Fan and Indoor Fan Motor Removal
Procedures ............................................... 103
15.Exploded View and Replacement Parts List 110
15.1Indoor Unit ................................................ 110

4
1. Safety Precautions
 Read the following “SAFETY PRECAUTIONS” carefully before installation.
 Electrical work must be installed by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit
for the model to be 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 due to ignoring of the instruction will cause harm or damage, and the
seriousness is classified by the following indications.
WARNING This indication shows the possibility of causing death or serious injury.
CAUTION This indication shows the possibility of causing injury or damage to properties only.
 The items to be followed are classified by the symbols:
Symbol with white background denotes item that is PROHIBITED.
Symbol with dark background denotes item that must be carried out.
 Carry out test run to confirm that no abnormality occurs after the installation. 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.
 This appliance is not intended for accessibility by the general public.
WARNING
1. Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit on veranda of a high rise building, child may
climb up to outdoor unit and cross over the handrail causing an accident.
2. 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.
3. Do not tie up the power supply cord into a bundle by band. Abnormal temperature rise on power supply cord may happen.
4. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.
5. Do not sit or step on the unit, you may fall down accidentally.
6. Keep plastic bag (packaging material) away from small children, it may cling to nose and mouth and prevent breathing.
7. When installing or relocating 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.
8. Do not add or replace refrigerant other than specified type. It may cause product damage, burst and injury etc.
9.
• For R410A model, use piping, flare nut and tools which is specified for R410A refrigerant. Using of existing (R22) piping, flare nut
and tools may cause abnormally high pressure in the refrigerant cycle (piping), and possibly result in explosion and injury.
• Thickness for copper pipes used with R410A must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm.
• It is desirable that the amount of residual oil less than 40 mg/10 m.
10. Engage authorized dealer or specialist for installation. If installation done by the user is incorrect, it will cause water leakage, electrical
shock or fire.
11. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or fire.
12. Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or
electrical shock.
13. Install at a strong and firm location which is able to withstand weight of the set. If the strength is not enough or installation is not
properly done, the set will drop and cause injury.
14.
For electrical work, follow the local national wiring standard, regulation and this 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.
15.
Do not use joint cable for indoor / outdoor connection cable. Use the specified indoor/outdoor connection cable, refer to instruction
CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor/outdoor connection. Clamp the cable so that no
external force will have impact on the terminal. If connection or fixing is not perfect, it will cause heat up or fire at the connection.
16. 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 fire or electrical shock.
17. 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 of equipment breakdown or insulation breakdown.

5
WARNING
18.
During installation, install the refrigerant piping properly before running 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.
19.
During pump down operation, stop the compressor before remove the refrigeration piping. Removal of refrigeration piping while
compressor is operating and valves are opened will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in
explosion, injury etc.
20. 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.
21. After completion of installation, 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. 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 of equipment breakdown or insulation breakdown.
CAUTION
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. Do not release refrigerant during piping work for installation, re-installation and during repairing a refrigeration parts. Take care of
the liquid refrigerant, it may cause frostbite.
3. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.
4. Do not touch the sharp aluminium fin, sharp parts may cause injury.
5. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and
damage the furniture.
6. Select an installation location which is easy for maintenance.
7. Installation work.
It may need two people to carry out the installation work.

6
2. Specifications
Model Indoor CS-MZ5SKE CS-MZ5SKE-M
Performance Test Condition EUROVENT EUROVENT
Power Supply Phase, Hz Single, 50 Single, 50
V 230 230
Min. Mid. Max. Min. Mid. Max.
Cooling
Capacity
kW 1.30 1.60 2.30 1.30 1.60 2.30
BTU/h 4430 5460 7840 4430 5460 7840
Running Current A – 2.00 – – 2.00 –
Input Power W 250 400 640 250 400 640
Annual Consumption kWh – 200 – – 200 –
EER W/W 3.59 4.00 5.20 3.59 4.00 5.20
Indoor Noise (H / L / QLo)
dB-A 38 / 26 / 21 38 / 26 / 21
Power Level dB 54 / – 54 / –
Heating
Capacity kW 1.20 2.60 3.20 1.20 2.60 3.20
BTU/h 4090 8870 10900 4090 8870 10900
Running Current A – 3.00 – – 3.00 –
Input Power W 300 600 960 300 600 960
COP W/W 4.00 4.33 3.33 4.00 4.33 3.33
Indoor Noise (H / L / QLo) dB-A 39 / 27 / 21 39 / 27 / 21
Power Level dB 55 / – 55 / –
Indoor Fan
Type Cross-Flow Fan Cross-Flow Fan
Material ASG20K1 ASG20K1
Motor Type DC / Transistor (8-poles) DC / Transistor (8-poles)
Input Power W 44.9 44.9
Output Power W 40 40
Speed
QLo Cool rpm 610 600
Heat rpm 610 610
Lo Cool rpm 700 700
Heat rpm 800 800
Me Cool rpm 865 865
Heat rpm 955 955
Hi Cool rpm 1030 1030
Heat rpm 1110 1110
SHi Cool rpm 1060 1060
Heat rpm 1140 1140
Moisture Removal L/h 1.0 1.0
Indoor
Airflow
QLo
Cool m3/min (ft3/min) 5.06 (178) 5.06 (178)
Heat m3/min (ft3/min) 5.08 (179) 5.08 (179)
Lo
Cool m3/min (ft3/min) 6.03 (213) 6.03 (213)
Heat m3/min (ft3/min) 7.14 (252) 7.14 (252)
Me
Cool m3/min (ft3/min) 7.81 (276) 7.81 (276)
Heat m3/min (ft3/min) 8.82 (311) 8.82 (311)
Hi
Cool m3/min (ft3/min) 9.6 (340) 9.6 (340)
Heat m3/min (ft3/min) 10.5 (370) 10.5 (370)
SHi
Cool m3/min (ft3/min) 9.92 (350) 9.92 (350)
Heat m3/min (ft3/min) 10.82 (382) 10.82 (382)

7
Model Indoor CS-MZ5SKE CS-MZ5SKE-M
Dimension
Height (I/D) mm (inch) 295 (11-5/8) 295 (11-5/8)
Width (I/D) mm (inch) 919 (36-3/16) 919 (36-3/16)
Depth (I/D) mm (inch) 194 (7-21/32) 194 (7-21/32)
Weight Net (I/D) kg (lb) 9 (20) 9 (20)
Piping Pipe Diameter
(Liquid / Gas) mm (inch) 6.35 (1/4) / 9.52 (3/8) 6.35 (1/4) / 9.52 (3/8)
Drain Hose Inner Diameter mm 16.7 16.7
Length mm 650 650
Indoor Heat
Exchanger
Fin Material Aluminium (Pre Coat) Aluminium (Pre Coat)
Fin Type Slit Fin Slit Fin
Row × Stage × FPI 2 × 15 × 21 2 × 15 × 21
Size (W × H × L) mm 610 × 315 × 25.4 610 × 315 × 25.4
Air Filter Material Polypropelene Polypropelene
Type One-touch One-touch
Indoor
Operation
Range
Cooling
Maximum °C 32 23 32 23
Minimum °C 16 11 16 11
Heating
Maximum °C 30 – 30 –
Minimum °C 16 – 16 –
1. Cooling capacities are based on indoor temperature of 27°C Dry Bulb (80.6°F Dry Bulb), 19.0°C Wet Bulb (66.2°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. Heating low temperature capacity, Input Power and COP measured at 230 V, indoor temperature 20°C, outdoor 2/1°C
4. Heating extreme low temperature capacity, Input Power and COP measured at 230 V, indoor temperature 20°C, outdoor -7/-8°C
5. Standby power consumption ≤10.0w (when switched OFF by remote control, except under self protection control).
6. Specifications are subjected to change without prior notice for further improvement.

8
 Multi Split Combination Possibility:
o A single outdoor unit enables air conditioning of up to two separate rooms for CU-2E12SBE, CU-2E15SBE,
CU-2E18SBE.
o A single outdoor unit enables air conditioning of up to three separate rooms for CU-3E23SBE.
CONNECTABLE INDOOR UNIT CU-2E12SBE CU-2E15SBE CU-2E18SBE CU-3E23SBE
ROOM A B A B A B A B C
Wall
1.6kW CS-MZ5SKE
CS-MZ5SKE-M ● ● ● ● ● ● ● ● ●
2.0kW
CS-Z7SKEW
CS-E7SKEW
CS-XE7SKEW
CS-Z7SKEW-M
CS-XZ7SKEW
CS-E7SKEW-M
● ● ● ● ● ● ● ● ●
2.5kW
CS-Z9SKEW
CS-E9SKEW
CS-XE9SKEW
CS-XZ9SKEW
CS-Z9SKEW-M
CS-E9SKEW-M
● ● ● ● ● ● ● ● ●
3.2kW
CS-Z12SKEW
CS-E12SKEW
CS-XE12SKEW
CS-XZ12SKEW
CS-Z12SKEW-M
CS-E12SKEW-M
– – – – ● ● ● ● ●
4.0kW
CS-Z15SKEW
CS-E15SKEW
CS-Z15SKEW-M
CS-E15SKEW-M
– – – – – – – ● ●
5.0kW
CS-Z18SKEW
CS-E18SKEW
CS-XE18SKEW
CS-XZ18SKEW
CS-Z18SKEW-M
CS-E18SKEW-M
– – – – – – – ● ●
Capacity range of connectable units From 3.2kW to 5.6kW From 3.2kW to 5.6kW From 3.2kW to 7.5kW From 4.8kW to 10.0kW
Pipe length
1 room maximum pipe length (m) 20 20 20 25
Allowable elevation (m) 10 10 10 15
Total allowable pipe length (m) 30 30 30 60
Total pipe length for maximum
chargeless length (m) 20 20 20 30
Additional gas amount over
chargeless length (g/m) 15 15 15 20
Note: “●” : Available
Remarks for CU-2E12SBE / CU-2E15SBE / CU-2E18SBE
1. At least two indoor units must be connected.
2. The total nominal cooling capacity of indoor unit that will be connected to outdoor unit must be within connectable capacity range of indoor
unit. (as shown in the table above)
Example: The indoor units’ combination below is possible to connect to CU-2E15SBE. (Total nominal capacity of indoor units is between
3.2kW to 5.6kW)
1) Two CS-Z7SKEW only. (Total nominal cooling capacity is 4.0kW)
2) One CS-Z7SKEW and one CS-Z9SKEW. (Total nominal cooling capacity is 4.5kW)
Remarks for CU-3E23SBE
1. At least two indoor units must be connected.
2. The total nominal cooling capacity of indoor unit that will be connected to outdoor unit must be within connectable capacity range of indoor
unit. (as shown in the table above)
Example: The indoor units’ combination below is possible to connect to CU-3E23SBE. (Total nominal capacity of indoor units is between
4.8kW to 10.0kW)
1) Two CS-Z9SKEW only. (Total nominal cooling capacity is 5.0kW)
2) Three CS-Z12SKEW. (Total nominal cooling capacity is 9.6kW)

9
 Multi Split Combination Possibility:
o A single outdoor unit enables air conditioning of up to four separate rooms for CU-4E23PBE, CU-4E27PBE.
o A single outdoor unit enables air conditioning of up to five separate rooms for CU-5E34PBE.
CONNECTABLE INDOOR UNIT CU-4E23PBE CU-4E27PBE CU-5E34PBE
ROOM A B C D A B C D A B C D E
Wall
1.6kW CS-MZ5SKE
CS-MZ5SKE-M ● ● ● ● ● ● ● ● ● ● ● ● ●
2.0kW
CS-Z7SKEW
CS-E7SKEW
CS-XE7SKEW
CS-Z7SKEW-M
CS-XZ7SKEW
CS-E7SKEW-M
● ● ● ● ● ● ● ● ● ● ● ● ●
2.5kW
CS-Z9SKEW
CS-E9SKEW
CS-XE9SKEW
CS-XZ9SKEW
CS-Z9SKEW-M
CS-E9SKEW-M
● ● ● ● ● ● ● ● ● ● ● ● ●
3.2kW
CS-Z12SKEW
CS-E12SKEW
CS-XE12SKEW
CS-XZ12SKEW
CS-Z12SKEW-M
CS-E12SKEW-M
– ● ● ● ● ● ● ● ● ● ● ● ●
4.0kW
CS-Z15SKEW
CS-E15SKEW
CS-Z15SKEW-M
CS-E15SKEW-M
– – ● ● – ● ● ● – ● ● ● ●
5.0kW
CS-Z18SKEW
CS-E18SKEW
CS-XE18SKEW
CS-XZ18SKEW
CS-Z18SKEW-M
CS-E18SKEW-M
– – ● ● – – ● ● – – ● ● ●
Capacity range of connectable units From 4.8kW to 11.0kW From 4.8kW to 13.6kW From 4.8kW to 17.5kW
Pipe length
1 room maximum pipe length (m) 25 25 25
Allowable elevation (m) 15 15 15
Total allowable pipe length (m) 70 70 80
Total pipe length for maximum
chargeless length (m) 40 45 45
Additional gas amount over
chargeless length (g/m) 20 20 20
Note: “●” : Available
Remarks for CU-4E23PBE / CU-4E27PBE / CU-5E34PBE
1. At least two indoor units must be connected.
2. The total nominal cooling capacity of indoor unit that will be connected to outdoor unit must be within connectable capacity range of indoor
unit. (as shown in the table above)
Example: The indoor units’ combination below is possible to connect to CU-4E27PBE. (Total nominal capacity of indoor units is between
4.5kW to 13.6kW)
1) Two CS-Z9SKEW only. (Total nominal cooling capacity is 5.0kW)
2) Three CS-Z12SKEW. (Total nominal cooling capacity is 9.6kW)

10
 Indoor Unit : CS-MZ5SKE / CS-MZ5SKE-M
 Outdoor Unit : CU-2E12SBE
2Room 1Room
Indoor Unit Capacity (kW) Total Indoor Capacity (kW) Indoor Unit Capacity (kW) Total Indoor Capacity (kW)
1.6+1.6 3.2 1.6 1.6
1.6+2.0 3.6 2.0 2.0
1.6+2.5 4.1 2.5 2.5
1.6+2.8 4.4 2.8 2.8
1.6+3.2 4.8 3.2 3.2
2.0+2.0 4.0
2.0+2.5 4.5
2.0+2.8 4.8
2.0+3.2 5.2
2.5+2.5 5.0
2.5+2.8 5.3
2.5+3.2 5.7
2.8+2.8 5.6
 Indoor Unit : CS-MZ5SKE / CS-MZ5SKE-M
 Outdoor Unit : CU-2E15SBE
2Room 1Room
Indoor Unit Capacity (kW) Total Indoor Capacity (kW) Indoor Unit Capacity (kW) Total Indoor Capacity (kW)
1.6+1.6 3.2 1.6 1.6
1.6+2.0 3.6 2.0 2.0
1.6+2.5 4.1 2.5 2.5
1.6+2.8 4.4 2.8 2.8
1.6+3.2 4.8 3.2 3.2
2.0+2.0 4.0
2.0+2.5 4.5
2.0+2.8 4.8
2.0+3.2 5.2
2.5+2.5 5.0
2.5+2.8 5.3
 Indoor Unit : CS-MZ5SKE / CS-MZ5SKE-M
 Outdoor Unit : CU-2E18SBE
2Room 1Room
Indoor Unit Capacity (kW) Total Indoor Capacity (kW) Indoor Unit Capacity (kW) Total Indoor Capacity (kW)
1.6+1.6 3.2 1.6 1.6
1.6+2.0 3.6 2.0 2.0
1.6+2.5 4.1 2.5 2.5
1.6+2.8 4.4 2.8 2.8
1.6+3.2 4.8 3.2 3.2
2.0+2.0 4.0
2.0+2.5 4.5
2.0+2.8 4.8
2.0+3.2 5.2
2.5+2.5 5.0
2.5+2.8 5.3
2.5+3.2 5.7
2.8+2.8 5.6
2.8+3.2 6.0
3.2+3.2 6.4
 Cooling capacities are based on indoor temperature of 27°C DRY BULB, 19°C WET BULB and outdoor air
temperature of 35°C DRY BULB, 24°C WET BULB.
 Specifications are subject to change without notice for further improvement.

11
 Indoor Unit : CS-MZ5SKE / CS-MZ5SKE-M
 Outdoor Unit : CU-3E18SBE
3Room 2Room 1Room
Indoor Unit
Capacity (kW)
Total Indoor
Capacity (kW)
Indoor Unit
Capacity (kW)
Total Indoor
Capacity (kW)
Indoor Unit
Capacity (kW)
Total Indoor
Capacity (kW)
1.6+1.6+1.6 4.8 1.6+3.2 4.8 1.6 1.6
1.6+1.6+2.0 5.2 1.6+4.0 5.6 2.0 2.0
1.6+1.6+2.5 5.7 1.6+5.0 6.6 2.5 2.5
1.6+1.6+2.8 6.0 2.0+2.5 4.5 2.8 2.8
1.6+1.6+3.2 6.4 2.0+2.8 4.8 3.2 3.2
1.6+1.6+4.0 7.2 2.0+3.2 5.2 4.0 4.0
1.6+1.6+5.0 8.2 2.0+4.0 6.0 5.0 5.0
1.6+2.0+2.0 5.6 2.0+5.0 7.0
1.6+2.0+2.5 6.1 2.5+2.5 5.0
1.6+2.0+2.8 6.4 2.5+2.8 5.3
1.6+2.0+3.2 6.8 2.5+3.2 5.7
1.6+2.0+4.0 7.6 2.5+4.0 6.5
1.6+2.0+5.0 8.6 2.5+5.0 7.5
1.6+2.5+2.5 6.6 2.8+2.8 5.6
1.6+2.5+2.8 6.9 2.8+3.2 6.0
1.6+2.5+3.2 7.3 2.8+4.0 6.8
1.6+2.5+4.0 8.1 2.8+5.0 7.8
1.6+2.8+2.8 7.2 3.2+3.2 6.4
1.6+2.8+3.2 7.6 3.2+4.0 7.2
1.6+2.8+4.0 8.4 3.2+5.0 8.2
1.6+3.2+3.2 8.0 4.0+4.0 8.0
1.6+3.2+4.0 8.8 4.0+5.0 9.0
2.0+2.0+2.0 6.0
2.0+2.0+2.5 6.5
2.0+2.0+2.8 6.8
2.0+2.0+3.2 7.2
2.0+2.0+4.0 8.0
2.0+2.0+5.0 9.0
2.0+2.5+2.5 7.0
2.0+2.5+2.8 7.3
2.0+2.5+3.2 7.7
2.0+2.5+4.0 8.5
2.0+2.8+2.8 7.6
2.0+2.8+3.2 8.0
2.0+2.8+4.0 8.8
2.0+3.2+3.2 8.4
2.5+2.5+2.5 7.5
2.5+2.5+2.8 7.8
2.5+2.5+3.2 8.2
2.5+2.5+4.0 9.0
2.5+2.8+2.8 8.1
2.5+2.8+3.2 8.5
2.5+3.2+3.2 8.9
2.8+2.8+2.8 8.4
2.8+2.8+3.2 8.8
 Cooling capacities are based on indoor temperature of 27°C DRY BULB, 19°C WET BULB and outdoor air
temperature of 35°C DRY BULB, 24°C WET BULB.
 Specifications are subject to change without notice for further improvement.

12
 Indoor Unit : CS-MZ5SKE / CS-MZ5SKE-M
 Outdoor Unit : CU-3E23SBE
3Room 2Room 1Room
Indoor Unit
Capacity (kW)
Total Indoor
Capacity (kW)
Indoor Unit
Capacity (kW)
Total Indoor
Capacity (kW)
Indoor Unit
Capacity (kW)
Total Indoor
Capacity (kW)
1.6+1.6+1.6 4.8 1.6+3.2 4.8 1.6 1.6
1.6+1.6+2.0 5.2 1.6+4.0 5.6 2.0 2.0
1.6+1.6+2.5 5.7 1.6+5.0 6.6 2.5 2.5
1.6+1.6+2.8 6.0 1.6+6.0 7.6 2.8 2.8
1.6+1.6+3.2 6.4 2.0+2.5 4.5 3.2 3.2
1.6+1.6+4.0 7.2 2.0+2.8 4.8 4.0 4.0
1.6+1.6+5.0 8.2 2.0+3.2 5.2 5.0 5.0
1.6+1.6+6.0 9.2 2.0+4.0 6.0 6.0 6.0
1.6+2.0+2.0 5.6 2.0+5.0 7.0
1.6+2.0+2.5 6.1 2.0+6.0 8.0
1.6+2.0+2.8 6.4 2.5+2.5 5.0
1.6+2.0+3.2 6.8 2.5+2.8 5.3
1.6+2.0+4.0 7.6 2.5+3.2 5.7
1.6+2.0+5.0 8.6 2.5+4.0 6.5
1.6+2.0+6.0 9.6 2.5+5.0 7.5
1.6+2.5+2.5 6.6 2.5+6.0 8.5
1.6+2.5+2.8 6.9 2.8+2.8 5.6
1.6+2.5+3.2 7.3 2.8+3.2 6.0
1.6+2.5+4.0 8.1 2.8+4.0 6.8
1.6+2.5+5.0 9.1 2.8+5.0 7.8
1.6+2.5+6.0 10.1 2.8+6.0 8.8
1.6+2.8+2.8 7.2 3.2+3.2 6.4
1.6+2.8+3.2 7.6 3.2+4.0 7.2
1.6+2.8+4.0 8.4 3.2+5.0 8.2
1.6+2.8+5.0 9.4 3.2+6.0 9.2
1.6+2.8+6.0 10.4 4.0+4.0 8.0
1.6+3.2+3.2 8.0 4.0+5.0 9.0
1.6+3.2+4.0 8.8 4.0+6.0 10.0
1.6+3.2+5.0 9.8 5.0+5.0 10.0
1.6+3.2+6.0 10.8 5.0+6.0 11.0
1.6+4.0+4.0 9.6
1.6+4.0+5.0 10.6
2.0+2.0+2.0 6.0
2.0+2.0+2.5 6.5
2.0+2.0+2.8 6.8
2.0+2.0+3.2 7.2
2.0+2.0+4.0 8.0
2.0+2.0+5.0 9.0
2.0+2.0+6.0 10.0
2.0+2.5+2.5 7.0
2.0+2.5+2.8 7.3
2.0+2.5+3.2 7.7
2.0+2.5+4.0 8.5
2.0+2.5+5.0 9.5
2.0+2.5+6.0 10.5
2.0+2.8+2.8 7.6
2.0+2.8+3.2 8.0
2.0+2.8+4.0 8.8
2.0+2.8+5.0 9.8
2.0+2.8+6.0 10.8
2.0+3.2+3.2 8.4
2.0+3.2+4.0 9.2
2.0+3.2+5.0 10.2
2.0+4.0+4.0 10.0
2.0+4.0+5.0 11.0
2.5+2.5+2.5 7.5
2.5+2.5+2.8 7.8
2.5+2.5+3.2 8.2
2.5+2.5+4.0 9.0
2.5+2.5+5.0 10.0
2.5+2.5+6.0 11.0
2.5+2.8+2.8 8.1
2.5+2.8+3.2 8.5
2.5+2.8+4.0 9.3
2.5+2.8+5.0 10.3
2.5+3.2+3.2 8.9
2.5+3.2+4.0 9.7
2.5+3.2+5.0 10.7
2.5+4.0+4.0 10.5
2.8+2.8+2.8 8.4

13
3Room 2Room 1Room
Indoor Unit
Capacity (kW)
Total Indoor
Capacity (kW)
Indoor Unit
Capacity (kW)
Total Indoor
Capacity (kW)
Indoor Unit
Capacity (kW)
Total Indoor
Capacity (kW)
2.8+2.8+3.2 8.8
2.8+2.8+4.0 9.6
2.8+2.8+5.0 10.6
2.8+3.2+3.2 9.2
2.8+3.2+4.0 10.0
2.8+3.2+5.0 11.0
2.8+4.0+4.0 10.8
3.2+3.2+3.2 9.6
3.2+3.2+4.0 10.4
 Cooling capacities are based on indoor temperature of 27°C DRY BULB, 19°C WET BULB and outdoor air
temperature of 35°C DRY BULB, 24°C WET BULB.
 Specifications are subject to change without notice for further improvement.

14
3. Location of Controls and Components
3.1 Indoor Unit
Front panel
Air Filters
Auto OFF/ON button
Use when remote control is misplaced
or a malfunction occurs.
Vertical airflow direction louver
Do not adjust by hand.
Horizontal airflow direction louver
Do not adjust by hand.
Aluminium fin
Human activity
sensor
Sunlight Sensor and
Remote Control Receiver
Indicator
TIMER
ECONAVI
nanoe
POWER
(White)
(White)
(White)
(White)
3.2 Remote Control
Timer setting
Airflow direction
selection
Mild dry operation
nanoe operation
Fan speed selection
Transmitter
Operation mode
Sleep mode operation
Powerful/Quiet
operation
ECONAVI operation
Remote control
display
Clock setting
OFF/ON
Check
Temperature setting

15
4. Dimensions
4.1 Indoor Unit
(194)
919
295
2 ±0.5 2 ±0.5
194
45 61
6060 139149
(41-61)410
16.4
264.6
Unit: mm
B
A
C
PIPE
HOLE
CENTER
PIPE
HOLE
CENTER
128mm TO
PIPE HOLE
CENTER
128mm TO
PIPE HOLE
CENTER
496.6
128
266 266
128
Right
piping
hole
Left
piping
hole
Installation
plate
Indoor unit
external
dimensions
line
460460
43
95
<Top View>
<Front View>
<Bottom View>
<Rear View>
Relative position between the indoor unit and the installation plate <Front View>
<Side View> <Side View>
Gas side
Liquid side
Left piping
hole Air outlet
direction
Air intake
direction
Right piping
hole
22
<Remote Control>
160
59
<Remote Control Holder>
64
87

16
5. Wiring Connection Diagram
5.1 Indoor Unit
ELECTRONIC CONTROLLER (SUB)
ELECTRONIC CONTROLLER (MAIN)
TERMINAL
BOARD
GROUNDING
TERMINAL
TO OUTDOOR UNIT
TEMPERATURE FUSE 102°C 3A
ELECTRONIC CONTROLLER
(COMPARATOR)
HIGH VOLTAGE
POWER SUPPLY NANOE
GENERATOR
1
W
5
15
CN-DATA2
(WHT)
CN-DATA2
(YLW)
FUSE301
T.3.15A L250V
CN-NANO
(GRN)
AC306
(BLK)
AC303
(WHT)
AC304
(RED)
G301
(GRN)
BLK
WHT
RED
GRN
Y B
R
W
BL
YLW/GRN
EVAPORATOR
1 3 5
CN1
(WHT)
4 1
4 1
41
CN-MSENS
(BLU)
SW01
4 1
CN-RMT
(WHT) CN-MSENS
(BLU)
41
CN-SENS 2
(YLW)
31 31
CN-SENS 1
(WHT)
ELECTRONIC
CONTROLLER
(ECO SENSOR)
CN-SENS 1 (YLW)
W W
WWW
W W
W W W W W W W W
W
BLK
W
1 2
CN2
(WHT)
31
ELECTRONIC CONTROLLER
(ECO SENSOR)
CN-SENS 2 (YLW)
W W W
1 2 3
FAN MOTOR
7 4 1
CN-FM
(WHT)
NOISE FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
M
COMMUNICATION
CIRCUIT
GR
BR
W
G
Y
5 1
CN-CNT
(WHT)
5 1
UP DOWN LOUVER MOTOR (OUTER)
BR
O
R
Y P
1 5
CN-STM1
(WHT)
1 5
M
UP DOWN LOUVER MOTOR (INNER)
BR
O
R
Y P
1 5
CN-STM3
(BLU)
1 5
M
LEFT RIGHT LOUVER MOTOR
BR
O
R
Y P
1 5
CN-STM2
(YLW)
1 5
M
6 1
CN-TH
(RED)
t° t° t°
SUCTION TEMP. SENSOR (THERMISTOR) PIPING TEMP. SENSOR 2 (THERMISTOR) PIPING TEMP. SENSOR 1 (THERMISTOR)
ELECTRONIC CONTROLLER (DISPLAY)
16
CN-DISP
(WHT)
CN-DISP
(YLW)
16
WWWWWW
ELECTRONIC CONTROLLER (RECEIVER)
41
CN-RCV
(WHT)
CN-RCV
(YLW)
14
WWWW
LIGHT SENSOR
REMOTE CONTROLLER
REMARKS B/BLU : BLUE P : PINK BR : BROWN O : ORANGE BL/BLK : BLACK G/GRN: GREEN Y/YLW : YELLOW W/WHT : WHITE R : RED YLW/GRN : YELLOW/GREEN GR : GRAY

17
6. Electronic Circuit Diagram
6.1 Indoor Unit
ELECTRONIC CONTROLLER
(SUB) HIGH VOLTAGE
POWER SUPPLY NANOE
GENERATOR
CN-NANO
BLUE
1
3
5
CN1
WHITE
4
3
2
1
W
W
W
WW
BLK
W
1
2
CN2
WHITE
ELECTRONIC CONTROLLER
(MAIN)
TERMINAL
BOARD
GROUNDING
TERMINAL
TO OUTDOOR UNIT
TEMPERATURE
FUSE 102°C 3A
12345
12345
W
CN-DATA2
WHITE
CN-DATA2
YELLOW
FUSE301
T.3.15A L250V
AC306
(BLK)
AC303
(WHT)
AC304
(RED)
G301
(GRN)
BLK
WHT
RED
GRN
Y
B
R
W
BL
YLW/GRN
EVAPORATOR
SW01
CN-RMT
W W W W
1
2
3
FAN MOTOR
7
4
1
CN-FM
(WHT)
NOISE FILTER
CIRCUIT
RECTIFICATION
CIRCUIT
M
COMMUNICATION
CIRCUIT
CN-CNT
WHITE
CN-TH
RED
t°
t°
t°
SUCTION TEMP. SENSOR
(THERMISTOR)
PIPING TEMP. SENSOR 2
(THERMISTOR)
PIPING TEMP. SENSOR 1
(THERMISTOR)
CN-DISP
YELLOW
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0-10 0 10
Temperature (ºC)
Resistance (kΩ)
20 30 40 50
1
2
1
2
Pipe temp. Sensor
Intake Air Temp. Sensor
ELECTRONIC CONTROLLER
(RECEIVER)
LIGHT SENSOR
REMOTE CONTROLLER
ELECTRONIC
CONTROLLER
(COMPARATOR)
CN-SENS1
CN-SENS1
YELLOW
CN-SENS2
YELLOW
CN-SENS2
YELLOW
ELECTRONIC
CONTROLLER
(ECO SENSOR)
SENSOR 2
ELECTRONIC
CONTROLLER
(ECO SENSOR)
SENSOR 1
1
2
3
1
2
31
2
3
4
G2
G2
G2
5V_3
5V_3
5V_3
5V_3
1
2
3
G2
CN-MSENS
BLUE
CN-MSENS
BLUE
CN-RCV
YELLOW
CN-RCV
WHITE
5V_3
G2
4
3
2
1
1
2
3
4
5V_
GND-A
GND-A
1
4
3
2
1
1
2
3
4
*CN-DISP
WHITE
2
3
4
5
6
1
2
3
4
5
6
ELECTRONIC
CONTROLLER
(DISPLAY)
5V
13V
*LED201 White
*R201 1k
*R202 1k
*R203 1k
*R204
1k
*R222
0
AK
*LED202 White
AK
*LED203 White
A
C
B
E
K
*LED204
White
AK
GND-A
*R221
*R214
*Q1
G7
G7
12V
JR4
0
R64
1k
C3
0.1µ
16V
C40
0.1µ
C25
1µ
16v
C28
1µ
16v
C27
1µ
16v
R58
1M
1%
C38
0.1µ
25V
C14
1000p
50V
*R89
*C45 *C49
*C47 *C48
C56 C57
L5L6
5V
5V
G2
R40
0
5V
R37
10k
R85
5.1k
R77
10k
R74
10k
R54
270
454321321
5V
5V
R82
10k
F301
32V
500mA
R90
10k
5V12V
UP DOWN
LOUVER MOTOR
(INNER)
BR
O
R
Y
P
1
5
4
3
2
CN-STM3
BLUE
1
5
M
*IC06 12V
1
2
3
4
5
6
7
16
15
14
13
12
11
10
LEFT RIGHT
LOUVER MOTOR
BR
O
R
Y
P
1
5
M
1
5
4
3
2
CN-STM2
YELLOW
*IC03 12V
1
2
3
4
5
6
7
16
15
14
13
12
11
10
1
5
6
4
3
2
UP DOWN
LOUVER MOTOR
(OUTER)
BR
O
R
Y
P
1
5
M
1
5
4
3
2
CN-STM1
WHITE
*IC05 12V
1
2
3
4
5
6
7
16
15
14
13
12
11
10
5V
R62
15k
1%
R61
20k
1%
R63
20k
1%

18
7. Printed Circuit Board
7.1 Indoor Unit
7.1.1 Main Printed Circuit Board
AC303
CN-STM1
CN-STM3
CN-STM2
CN-RCV
CN-DISP
CN-DATA2
CN-RMT
CN-TH
JP1 (Random Auto Restart enable/disable)
CN-MSENS
CN-CNT
CN-DATA1
CN-FM

19
7.1.2 Indicator Printed Circuit Board
LED201LED203
LED206 LED204 LED202
LED205
CN-DISP
7.1.3 Receiver Printed Circuit Board
CN-RCV
7.1.4 High Voltage Power Supply Printed Circuit Board
CN2

20
7.1.5 Sub Printed Circuit Board
CN-NANO CN-DATA2
ACN502
ACN501
ACL501
A
C306
A
C302
CN-DATA1
7.1.6 Human Activity Sensor Printed Circuit Board
7.1.7 Comparator Printed Circuit Board
CN-SENS2 CN-SENS1
CN-MSENS