Panasonic cs-me9sb4u service manual

Order No: PAPAMY1604059CE

TEM P

TIMER

OFF1

23C

Air Conditioner

FAN

AUTO

SPEED

HEAT

AIR

COOL

SWING DRY FAN

OFF/ON

FF/ON

MODE

TEMP

AIRSWING

POWERFUL/

QUIET

FANSPEED

TIMER

SET

123

CANCELONOFF

CANCEL

AC RC

SETCHECK CLOCK RESET

HEC

E S O

L C

E P O

E S O

L C

A I R

T I M

F F / O

Indoor Unit CS-ME9SB4U

Destination

USA

Canada

Please file and use this manual together with service manual for Model No. CU-2E18SBU, CU-3E19RBU, CU-4E24RBU, CU-5E36QBU Order No. PAPAMY1604017CE, PAPAMY1505100CE, PAPAMY1312037CE.

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

In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.

PRECAUTION OF LOW TEMPERATURE

TABLE OF CONTENTS

PAGE

1. Safety Precautions ............................................. 3

2. Specifications ..................................................... 5

3. Features ............................................................... 8

4. Location of Controls and Components ............ 9

4.1 Indoor Unit .................................................... 9

4.2 Remote Control ............................................ 9

5. Dimensions ....................................................... 10

5.1 Indoor Unit .................................................. 10

6. Refrigeration Cycle Diagram ........................... 11

7. Block Diagram .................................................. 12

8. Wiring Connection Diagram ............................ 13

8.1 Indoor Unit .................................................. 13

9. Electronic Circuit Diagram .............................. 14

9.1 Indoor Unit .................................................. 14

10. Printed Circuit Board ....................................... 15

10.1 Indoor Unit .................................................. 15

11. Installation Instruction ..................................... 16

11.1 Attached Accessories ................................. 16

11.2 Indoor Unit .................................................. 16

12. Operation Control ............................................. 24

12.1 Basic Function ............................................ 24

12.2 Indoor Fan Motor Operation ....................... 25

12.3 Outdoor Fan Motor Operation .................... 26

12.4 Airflow Direction .......................................... 27

12.5 Quiet Operation (Cooling Mode/Cooling

Area of Dry Mode) ...................................... 27

12.6 Quiet Operation (Heating) .......................... 28

12.7 Powerful Mode Operation ........................... 28

12.8 Timer Control .............................................. 28

12.9 Auto Restart Control ................................... 29

12.10 Indication Panel .......................................... 29

12.11 Drain Pump Control Operation ................... 29

13. Servicing Mode ................................................. 30

13.1 Auto OFF/ON Button .................................. 30

13.2 Remote Control Button ............................... 31

14. Troubleshooting Guide .................................... 32

14.1 Refrigeration Cycle System ........................ 32

14.2 Breakdown Self Diagnosis Function ........... 34

14.3 Error Codes Table ...................................... 35

14.4 Self-diagnosis Method ................................ 37

15. Disassembly and Assembly Instructions ...... 61

15.1 Disassembly of Parts .................................. 61

16. Exploded View and Replacement Parts

List ..................................................................... 64

16.1 Indoor Unit .................................................. 64

16.2 CZ-BT20U (Front Grille Complete) ............. 68

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.

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.

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

3. Do not wrench the fasten terminal. Pull it out or insert it straightly.

Engage dealer or specialist for installation and servicing. If installation of servicing done by the user is defective, it will cause water

4. 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.

Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, water leakage,

6. fire or electrical shock.

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

7. done, the set will drop and cause injury.

For electrical work, follow the local national wiring standard, regulation and the installation instruction. An independent circuit and single

8. outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire.

This equipment is strongly recommended to install with Earth Leakage Circuit Breaker (ELCB) or Residual Current Device (RCD).

9. Otherwise, it may cause electrical shock and fire in case equipment breakdown or insulation breakdown.

Do not use joint cable for indoor / outdoor connection cable. Use the specified Indoor/Outdoor connection cable, refer to installation

10.

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.

Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will

11. cause heat-up or fire at the connection point of terminal, fire or electrical shock.

When install or relocate air conditioner, do not let any substance other than the specified refrigerant, eg. air etc. mix into refrigeration

12. cycle (piping). (Mixing of air etc. will cause abnormal high pressure in refrigeration cycle and result in explosion, injury etc.).

Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit at veranda of high rise building, child may climb

13. up to outdoor unit and cross over the handrail and causing accident.

This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and

14. telephone. Otherwise, it may cause electric 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.

Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet with

16. other electrical appliances. Poor contact, poor insulation or over current will cause electrical shock or fire.

Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the

17. flare may break and cause refrigerant gas leakage.

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.

18.

Thickness or copper pipes used with R410A must be more than 1/32" (0.8 mm). Never use copper pipes thinner than 1/32" (0.8 mm). It is desirable that the amount of residual oil less than 0.0008 oz/ft (40 mg/10 m). During installation, install the refrigerant piping properly before run the compressor. (Operation of compressor without fixing refrigeration

19.

piping and valves at opened condition will caused suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc).

WARNING

During pump down operation, stop the compressor before remove the refrigeration piping. (Removal of compressor while compressor is

20. operating and valves are opened will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.)

After completion of installation or service, confirm there is no leakage or refrigerant gas. It may generate toxic gas when the refrigerant

21. contacts with fire.

22. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when 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 described in catalog and manual.

25. Using of refrigerant other than the specified type may cause product damage, burst and injury etc.

CAUTION

Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of

1. the unit, it may cause fire.

Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the

2. furniture.

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

3. break and cause refrigerant gas leakage.

4. Do not touch outdoor unit air inlet and aluminium fin. It may cause injury.

5. Select an installation location which is easy for maintenance.

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).

Do not release refrigerant during piping work for installation, servicing, reinstallation and during repairing a refrigerant parts.

7. 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.

Do not touch the sharp aluminium fins or edges of metal parts.

11.

If you are required to handle sharp parts during installation or servicing, please wear hand glove. Sharp parts may cause injury.

2. Specifications

Model Indoor CS-ME9SB4U

Performance Test Condition ARI

Power Supply

Min. Mid. Max. Min. Mid. Max.

Capacity

Running Current A – 3.5 – – 3.2 –

Input Power W 340 630 810 340 630 810

Cooling

Indoor Noise (H / L / QLo)

Heating

Indoor Noise (H / L / QLo)

Indoor Fan

Speed

Moisture Removal L/h (Pt/h) 1.2 (2.5)

Indoor

Airflow

EER

Capacity

Running Current A – 5.2 – – 4.7 –

Input Power W 300 940 1.23k 300 940 1.23k

COP

Type BACKWARD FAN

Material ABS

Motor Type DC / Transistor (8-poles)

Input Power W –

Output Power W 40

QLo

SHi

QLo

SHi

Cool rpm 330

Heat rpm 410

Cool rpm 370

Heat rpm 460

Cool rpm 460

Heat rpm 540

Cool rpm 560

Heat rpm 620

Cool rpm 600

Heat rpm 650

Cool m

Heat m3/min (ft3/min) 7.7 (270)

Cool m

Heat m3/min (ft3/min) 8.5 (300)

Cool m

Heat m3/min (ft3/min) 9.8 (350)

Cool m

Heat m3/min (ft3/min) 11.1 (390)

Cool m

Heat m3/min (ft3/min) 11.6 (410)

Phase, Hz Single, 60

V 208 230

kW 1.80 2.52 2.90 1.80 2.52 2.90

BTU/h 6100 8600 9900 6100 8600 9900

W/W 5.29 4.00 3.58 5.29 4.00 3.58

BTU/hW 17.95 13.65 12.20 17.95 13.65 12.20

dB-A 36 / 30 / 27 36 / 30 / 27

Power Level dB 52 / – / – 52 / – / –

kW 1.20 3.60 4.30 1.20 3.60 4.30

BTU/h 4100 12300 14700 4100 12300 14700

W/W 4.00 3.83 3.50 4.00 3.83 3.50

BTU/hW 13.65 13.10 11.95 13.65 13.10 11.95

dB-A 36 / 32 / 29 36 / 32 / 29

Power Level dB 52 / – / – 52 / – / –

/min (ft3/min) 6.7 (240)

/min (ft3/min) 7.3 (260)

/min (ft3/min) 8.8 (310)

/min (ft3/min) 10.5 (370)

/min (ft3/min) 11.2 (400)

Model Indoor CS-ME9SB4U

Height (I/D / PANEL) mm (inch) 260 (10-1/4) / 51 (2-1/32)

Dimension

Weight Net (I/D / PANEL) kg (lb) 18 (40) / 2.5 (6)

Piping

Drain Hose

Indoor Heat

Exchanger

Air Filter

Indoor

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 (66.2°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. Specifications are subjected to change without prior notice for further improvement.

Width (I/D / PANEL) mm (inch) 575 (22-21/32) / 700 (27-9/16)

Depth (I/D / PANEL) mm (inch) 575 (22-21/32) / 700 (27-9/16)

Pipe Diameter

(Liquid / Gas)

Inner Diameter mm (ft) 30 (0.098)

Length mm (ft) 193 (0.633)

Fin Material Aluminium (Pre Coat)

Fin Type Slit Fin

Row × Stage × FPI 2 × 10 × 18

Size (W × H × L) mm (ft) 1330:1270 × 210 × 25.4 (4.363:4.166 × 0.689 × 0.083)

Material –

Type –

Power Supply Outdoor

Power Supply Cord A Nil

Thermostat Electronic Control

Protection Device Electronic Control

Dry Bulb Wet Bulb

Cooling

Heating

mm (inch) 6.35 (1/4) / 9.52 (3/8)

Maximum (°F/°C) 89.6/32 73.4/23

Minimum (°F/°C) 60.8/16 51.8/11

Maximum (°F/°C) 86.0/30 –/–

Minimum (°F/°C) 60.8/16 –/–

 Multi split Combination Possibility:

o A single outdoor unit enables air conditioning of up to two separate rooms for CU-2E18SBU. o A single outdoor unit enables air conditioning of up to three separate rooms for CU-3E19RBU. o A single outdoor unit enables air conditioning of up to four separate rooms for CU-4E24RBU. o A single outdoor unit enables air conditioning of up to five separate rooms for CU-5E36QBU.

CONNECTABLE INDOOR UNIT

Type

2.5 kW CS-ME9SB4U ● ● ● ● ● ● ● ● ● ● ● ● ● ●

3.2 kW CS-E12RB4UW ● ● ● ● ● ● ● ● ● ● ● ● ● ●

Wall

5.0 kW CS-E18RB4UW ● ● ● ● ● ● ● ● ● ● ● ● - -

Capacity range of connectable indoor

1 room maximum pipe length

Allowable elevation (m (ft)) 15 (49.2) 15 (49.2) 15 (49.2) 15 (49.2)

Total allowable pipe length (m (ft)) 80 (262.4) 70 (229.6) 50 (164.0) 50 (164.0)

Total pipe length for maximum

Piping Length

Additional gas amount over

chargeless length (g/m (oz/ft))

Remarks for CU-4E24RBU

1. At least two indoor units must be connected.

2. The total nominal cooling capacity of indoor units 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-4E24RBU. (Total nominal capacity of indoor units is between

4.5 kW to 13.6 kW)

1) Two CS-ME9SB4U only. (Total nominal cooling capacity is 5.0 kW)

2) Three CS-E12RB4UW. (Total nominal cooling capacity is 9.6 kW)

units

(m (ft))

chargeless length (m (ft))

ROOM

A B C D E A B C D A B C A B

CU-5E36QBU CU-4E24RBU CU-3E19RBU CU-2E18SBU

From 4.5 kW to 17.5 kW

25 (82.0) 25 (82.0) 25 (82.0) 25 (82.0)

45 (147.6) 45 (147.6) 30 (98.4) 20 (65.6)

20 (0.2) 20 (0.2) 20 (0.2) 20 (0.2)

OUTDOOR UNIT

From 4.5 kW to

13.6 kW

From 4.5 kW to

9.0 kW

Note: “●” : Available

From 3.2 kW to

6.4 kW

3. Features

 Inverter Technology

o Wider output power range o Energy saving o Quick Cooling o Quick Heating o More precise temperature control

 Environment Protection

o Non-ozone depletion substances refrigerant (R410A)

 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 o Blue coated condenser for high resistance to corrosion

 Operation Improvement

o Quiet mode to reduce the indoor unit operating sound o Powerful mode to reach the desired room temperature quickly o 24-hour timer setting

 Serviceability Improvement

o Breakdown Self Diagnosis function

4. Location of Controls and Components

4.1 Indoor Unit

E S O

Airflow direction louver

Air filter

Intake grille

4.2 Remote Control

N E P

E P O

E S O

L C

A I R

T I

F F / O

Control Panel

POWER (Green)

TIMER (Orange)

POWERFUL (Orange)

QUIET (Orange)

AIR SWING (Orange)

Receive

AUTO

Auto OFF/ON button

LCD display

Operation mode

Powerful/Quiet

operation

OFF/ON

Temperature setting

Airflow direction adjustment

Fan speed selection

Timer setting

Clock setting

5. Dimensions

TEM

TIMER

CHEC

)

5.1 Indoor Unit

30 (1-3/16

90 (3-35/64)

190 (7-31/64)

Gas piping

575 (22-21/32)

73 (2-7/8)

575 (22-21/32)

530 (20-55/64) (Hanging bolt)

650 (25-19/32) (Ceiling opening)

44 (1-47/64)

Liquid piping

Drain pipe

Air Intel

60 (2-23/64)60 (2-23/64)

142 (5-19/32)

60 (2-23/64)60 (2-23/64)

530 (20-55/64) (Hanging bolt)

650 (25-19/32) (Ceiling opening)

47 (1-17/32)

FAN

AUTO

SPEED

HEAT

AIR

COOL

SWING

DRY

FAN

OFF/ON

FF/

MODE

TEMP

AIRSWING

POWERFUL/

FAN SP E ED

QUIET

TIMER

SET

123

SETCHECK CLOCK RESET

ANCE

CANCELONOFF

134 (5-9/32)

22 (55/64)

61 (2-13/32)

51 (2-1/64)

260 (10-1/4)

25 (63/64)

100 (3-15/16)

151 (5-15/16)

700 (27-9/16)

Unit:mm(inch)

6. Refrigeration Cycle Diagram

HEA

TIN

INDOO

INTAKE

TEMP.

SENSOR

HEA T EXCHANGER

(EVAPORA T OR)

PIPE

TEMP.

SENSOR 1

PIPE

(INLET)

TEMP.

SENSOR 2

LIQUID

SIDE

2-WAY VALVE

GAS

SIDE

3-WAY VALVE

COOLING

7. Block Diagram

(INDOOR UNIT)

FUSE

DRAIN

PUMP

FAN

MOTOR

8. Wiring Connection Diagram

TRANS

TOOU

NIT

8.1 Indoor Unit

MOTOR

POYRBR

ORM

YYR

(WHT)

CN-STM1

(YLW)

CN-STM2

(WHT)

CN-CNT 1

T-BL K2 T-BLK1

(YLW)

CN-T2

CN-T1

RECTIFICATION

(WHT)

RECTIFICATION

HIGH STATIC

PRESSURE

CIRCUIT

INTAKE AIR TEMPERATURE SENSOR

FLOAT

SWITCH

INDOOR PIPE

TEMPERATURE

SENSOR 2

INDOOR PIPE

TEMPERATURE

SENSOR 1

t˚

BLBLBL

CN-TH1

SW02

DRAIN PUMP

TEST RUN

t˚

(WHT)

CN-DRMTR1

110

CN-DISP(WHT)

(BLU)

BR R R B B WYYW

REMOTE CONTROLLER

CN-DISP(WHT)

ELECTRONIC

CONTROLLER(DISPLAY)

AUTO SW

DRAIN PUMP

t˚

(FAN)

(BLU)

CN-TH2

SW01

ELECTRONIC CONTROLLER (MAIN)

CN-FM

(WHT)

765

MOTOR

CIRCUIT

RECTIFICATION

REMARKS

B:BLUE P:PINK

BR:BROWN O:ORANGE

BL:BLACK Y:YELLOW

CIRCUIT

NOISE FILTER

FUSE01

T3.15A L250V

G01(GRN)

W:WHITE GR:GRAY

R:RED G:GREEN

Y/G:YELLOW/GREEN

AC01(BLK)

AC02(WHT)

TERMINAL

BOARD

CIRCUIT

COMMUNICATION

AC03(RED)

Y/G

DOOR

9. Electronic Circuit Diagram

RANSFORME

UTDOORUN

TEMP

TIMER

CANCEL

CHEC

9.1 Indoor Unit

MOTOR

B W BL

TERMINAL BOARD

2 3

TO O

Y/G

ELECTRONIC CONTROLLER (MAIN)

CN-FM

(WHT)

G01(GRN)

FUSE01

T3.15A L250V

AC01(BLK)

AC02(WHT)

AC03(RED)

Sensor (Thermistor)

Characteristics

Resistance (k )

-10 (14)0(32)10(50)

RECTIFICATION

CIRCUIT

NOISE FILTER

CIRCUIT

COMMUNICATION

CIRCUIT

Pipe temp.Sensor

Intake Air Temp. Sensor

(68)30(86)40(104)50(122)

Temperature°C (°F)

CN-T1

(WHT)

RECTIFICATION

CIRCUIT

REMOTE CONTROLLER

AUTO HEAT COOL

DRY FAN

MODE

POWERFUL/

TIMER

DRAIN PUMP

OFF/ON

FF/

TEMP

QUIET

FANSPEED

123

OFF

SET CHECKCLOCK RESET

CN-T2 (YLW)

RECTIFICATION

AIRSWING

SET

CANCEL

CIRCUIT

FAN SPEED AIR SWING

YYR

CN-DRMTR1

(BLU)

T-BL K1

T-BL K2

CN-DISP(WHT)

ELECTRONIC CONTROLLER

(DISPLAY)

CN-CNT

(WHT)

BR R R B B WYYW

5V 12V

*L55V*L6

*C57 *C56

12V

R202

C202

CN-STM2

(YLW)

R82 10k

C51 C52

R203

10k

C201

47 F

(NHG)

R90

10k

110

CN-DISP(WHT)

GND 3

R201

OTO

POYRBR

12V

SSR02

SSR01

IC201 Vout1 Vout2

BZ201

D201

D202

D203

D204 D205

Auto

SW201

Power

Timer

Powerful

Quiet Air Swing

HIGH STATIC PRESSURE (FAN)

8 16 15 14 13 12 11 10

R56

SW01

C30

R13

12V

CN-STM1

(WHT)

12V

IC05IC07

10k

C29

R57

1000p

C04

R31

20.0k

15 14 13 12 11 10

12V

R55 10k

C31

0.01

R54 1k

R33

15.0k

C05

C43

R75

CN-TH1

1 R O

Y P

DRAIN PUMP TEST RUN

SW02

INTAKE AIR TEMPERATURESENSOR (15k 3950)

t˚

CN-TH2

(BLU)

t˚

BL BL

t˚

(WHT)

MOTOR

FLOAT SWITCH

INDOOR PIPE TEMPERATURE SENSOR 2 (20k 3950)

INDOOR PIPE TEMPERATURE SENSOR 1 (20k 3950)

10. Printed Circuit Board

10.1 Indoor Unit

10.1.1 Main Printed Circuit Board

CN-DRMTR1

CN-T2

CN-T1

T-BLK1 T-BLK2

CN-FM

CN-STM1

CN-STM2

10.1.2 Display Printed Circuit Board

SW01

SW02

CN-CNT

CN-TH1

CN-TH2

JP3 (Random Auto Restart enable/disable)

CN-DISP

11. Installation Instruction

11.1 Attached Accessories

yt’QemaN

Drainhosewithaclip

Heat Insulator

Installation parts you should purchase (

Sleeve ( )

Bushing-Sleeve (

Putty (Gum Type Sealer) (

)

Band

Flat washer for M10

Screw M5

Remote Control

Remote control holder

Remote control holder fixing screw

Battery

Applicable piping kit

CZ-3F5, 7BP 3/8" (9.52 mm) 1/4" (6.35 mm)

CZ-4F5, 7, 10BP 1/2" (12.7 mm) 1/4" (6.35 mm)

Piping size

Gas Liquid

Bend the pipe as

or more

8ft(2.4m)

FloororGradelevel

closely on the wall as possible, but be careful that it doesn’t break.

Vinyl tape (Wide) (

• Apply after carrying out a drainage test.

)

Attaching the remote control holder to the wall

Remote control holder fixing screws

Remote control

Remote control holder

Indoor unit

Outdoor

unit

It is advisable to avoid more than 2 blockage directions. For better ventilation & multipleoutdoor installation, please consult au thorized dealer/specialist.

•

This illustration is for explanation pu rpose s only. The indoor unit will actually face a different way.

•

Respective outdoor unit installation procedure shall refer to instruction manual provided in the outdoor unit packaging.

Saddle (

)

11.2 Indoor Unit

11.2.1 Selecting the Location for the Indoor Unit

Provide a check port on the piping side ceiling for repair and maintenance.  Install the indoor unit once the following conditions are satisfied and after receiving the customer approval.

1 The indoor unit must be within a maintenance space. 2 The indoor unit must be free from any obstacles in path of the air inlet and outlet, and must allow spreading

of air throughout the room.

3 Mount with the lowest moving parts at least 8 ft (2.4 m) above floor or grade level.

39 (1000)

(Unit: inch (mm))

or more

Obstacles

/8"

96"–118

(2400 – 30 00)

Floor

(500) or more

/16"

1911/16" (500) or more

19 (500) or more

* If the height from the floor to ceiling exceeds three meters, air flow distribution deteriorates and the effect is

decreased.

4 The installation position must be able to support a load four times the indoor unit weight.

5 The indoor unit must be away from heat and steam sources, but avoid installing it near an entrance.

/16"

(300) or less

(Unit: inch (mm))

6 The indoor unit must allow easy draining.

nch

7 The indoor unit must allow easy connection to the outdoor unit. 8 Place the indoor unit according to the height from the ceiling shown in the illustration below. 9 The indoor unit must be from at least 9.8 ft (3 m) away from any noise-generating equipment. The electrical

wiring must be shielded with a steel conduit. 10 If the power supply is subject to noise generation, add a suppressor. 11 Do not install the indoor unit in a laundry. Electric shocks may result.

Note

 Thoroughly study the following installation locations

1 In such places as restaurants and kitchens, considerable amount of oil steam and flour adhere to the turbo

fan, the fin of the heat exchanger and the drain pump, resulting in heat exchange reduction, spraying,

dispersing of water drops, drain pump malfunction, etc.

In these cases, take the following actions:

o Make sure that the ventilation fan for smoke-collecting hood on a cooking table has sufficient capacity so

that it draws oily steam which should not flow into the suction of the air conditioner.

o Make enough distance from the cooking room to install the air conditioner in such place where it may not

suck in oily steam.

Air conditioner

Use the ventilation fan for smoke-

Ensure ample

distance

Cooking table

collection hood with sufficient capacity.

2 Avoid installing the air conditioner in such

circumstances where cutting oil mist or iron

powder exist especially in factories, etc. 3 Avoid places where inflammable gas is

generated, flows-in, contaminated, or leaked. 4 Avoid places where sulphurous acid gas or

corrosive gas can be generated. 5 Avoid places near high frequency generators.

Model Name Height in the ceiling

ME9***

11" (280 mm) or

11.2.2 Installation of Indoor Unit

This air conditioner uses a drain up motor. Horizontally install the unit using a level gauge.

CEILING OPENING DIMENSIONS AND BOLT LOCATION

The paper model for installation expand or shrink according to temperature and humidity. Check on dimensions before using it.

During the installation, care must be taken

Caution

not to damage electric wires.

 The dimensions of the paper model for installation

are the same as those of the ceiling opening dimensions.

 Be sure to discuss the ceiling drilling work with the

workers concerned.

HANGING

it: i

259/16" (650) (Ceiling opening)

23/8"

(60)

/8" (530)

(Hanging bolt)

2213/16" (580)

(Unit size)

" (580)

(Unit size)

Refrigerant pipe

(60)

/8"

23/8"

(mm))

Drain pipe

(60)

" (530)

(Hanging bolt)

(60)

" (650) (Ceiling opening)

POSITIONS OF AIR CONDITIONER BODY AND CEILING SURFACE

andabove

•

angingbolt

(W3/8 or M10)

Nut (W3/8 or M10)

M10Springwasher

Warning

Keep the length of the bolt from

the bracket to 1

Flat washer for M10 (accessory)

Nut (W3/8 or M10)

Tighten the nut and bolt to prevent unit from falling

/16" (40 mm)

Ceiling

Adjust to the same height

Paper model for installation

Air conditioner body

Set screw for paper model (4 pieces)

Open the ceiling board along the outer edge of the paper model.

(113 mm)

" (292 mm)

(282 mm)

11.2.3 Refrigerant Piping

Refrigerant is charged to the outdoor unit. For details, see the manual for installation work of outdoor unit. (Additional charging, etc.)

1 Brazing for piping.

a. Execute brazing before tightening the flare

nut.

b. Brazing must be executed while blowing

nitrogen gas. (This prevents generation of oxidized scale in copper pipe.)

2 When there is a lot of brazings for long piping,

install a strainer midway of the piping. (The strainer is locally supplied.)

3 Use clean copper pipe with inner wall surface

free from mist and dust. Blow nitrogen gas or air to blow off dust in the pipe before connection.

4 Form the piping according to its routing. Avoid

bending and bending back the same piping point more than three times. (This will result in hardening of the pipe).

5 After deforming the pipe, align centers of the

union fitting of the indoor unit and the piping, and tighten them firmly with wrenches.

6 Connect pipe to the service valve or ball valve

which is located below the outdoor unit.

7 After completed the piping connection, be sure to check if there is gas leakage in indoor and outdoor

connection.

Vacuum drying

After completing the piping connection, execute vacuum drying for the connecting piping and the indoor unit. The vacuum drying must be carried out by using the service ports of both the liquid and gas side valves.

Union

Red mark

Confirm the red mark of the union (thin side) is always at lower direction after connecting piping.

CAUTION

Use two wrenches and tighten with regular torque.

Do not overtighten, overtightening may cause gas leakage.

Piping size Torque 1/4" (6.35 mm) 13.3 Ibf•ft [18 N•m (1.8 kgf•m)] 3/8" (9.52 mm) 31.0 Ibf•ft [42 N•m (4.3 kgf•m)] 1/2" (12.7 mm) 40.6 Ibf•ft [55 N•m (5.6 kgf•m)]

5/8" (15.88 mm) 47.9 Ibf•ft [65 N•m (6.6 kgf•m)] 3/4" (19.05 mm) 73.8 Ibf•ft [100 N•m (10.2 kgf•m)]

11.2.4 Indoor Unit Drain Piping

henconnectingwithth

 During drain piping connection, be careful not to exert extra force on the drain port at the indoor unit.  The outside diameter of the drain connection at the indoor unit is 1-1/4" (32 mm).

Piping material: Polyvinyl chloride pipe VP-25 and pipe fittings.

 Be sure to perform heat insulation on the drain piping.

Heat insulation material: Polyethylene foam with thickness more than 5/16" (8 mm) (local supply).

 Drain piping must have down-slope (1/50 to 1/100); be sure not to provide up-and-down slope to prevent reversal

flow.

 Be sure to check no air trap on drain hose and to ensure smooth water flow and no abnormal sound.

Upward-slope

No Air Trap

Indoor

unit

Pipe clamp

Down-slope

Upward routing

Tra p

Down-slope

Air Trap

 The height of drain may be possible up to 29-1/2"

(750 mm).

ainport

Indoor unit

Down-slope (1/50 ~ 1/100)

Elbow

" (750 mm)

or less

Elbow

 When drain set piping, install as shown in the

figure below.

Indoor

unit

own-slope (1/50 ~ 1/100)

Apply thehead confluence pipe. (about 3

Use VP30 or more confluence

/16" (100 mm))

The air conditioner uses a drain up motor to drain water. Use the following procedure to test the drain

Drain Test

up motor operation.

 Connect the main drain pipe to exterior and leave it provisionally until the test comes to an end.  Feed water to the flexible drain hose and check the piping for leakage.  Be sure to check the drain up motor for normal operating and noise when electric wiring is complete.  When the test is complete, connect the flexible drain hose to the drain port.  Pour about 600-700cc of water in the drain pan of the indoor unit. (Pour from the position specified in the drawing

by using a water supply bottle or other suitable tool.)

 Press the drain pump test run on PCB to start the drain motor, and verify water drainage.

(The drain motor will automatically stop after operating for about five minutes.)

Drain up motor

Feed water

Drain hose

Main drain pipe

Drain

Glue the joint

port

Drain hose connection Use the clip (accessory)

Drain pan

Air outlet vent

11.2.5 Heat Insulation

pedow

Be sure to perform heat insulation on the drain, liquid and gas piping. Imperfection in heat insulation work leads to water leakage.

1 Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 248°F

(120°C)).

Overlapwithheat insulator for piping.

Heat insulator for piping (Local supply)

Heat insulator (Accessory)

Indoor

nit

Band (Accessory)

2 Precautions in high humidity circumstance.

This air conditioner has been tested according to the “JIS Standard Conditions with Mist” and have been confirmed that there are no faults. However, if it is operated for a long time in high humid atmosphere (dew point temperature: more than 73.4°F (23°C)), water drops are liable to fall. In this case, add heat insulation material according to the following procedure: o Heat insulation material to be prepared… Adiabatic glass wool with thickness 3/8" to 1 3/16" (10 to

20 mm).

o Stick glass wool on all air conditioners that are located in ceiling atmosphere. o In addition to the normal heat insulation (thickness: more than 5/16" (8 mm) for refrigerant piping (gas

piping: thick piping) and drain piping, add a further of 3/8" (10 mm) to 1 3/16" (30 mm) thickness material.

Wall seal

 When the outdoor unit is installed on a higher

position than the indoor unit, install the trap so as not to instill rain water into the wall by transmitting in piping.

 Stuff the space among piping, the electric wire,

and- the drain hose with “Putty” and seal the penetration wall hole. Make sure that rain water do not instill into the wall.

Hose clip (Accessory)

Heat insulator (Local supply) (The thickness must be at

least

/16" (8 mm).)

It may be required to take off this part for checking or servicing the drain up motor. Please do not glue.

Make sure that there is no clearance here.

Indoor unit

Drain pipe

 Put the incision at the trap part of the heat

sulator (for waterdrain)

Flexible hose with heat insulator (Accessory)

To be glued

PVC pipe (O.D. ø1" (ø26) (Local supply)

Putty

Pipe

Trap

Incision

11.2.6 Connect the Cable to the Indoor

cre

 Open the control board cover by removing 2 pcs of screw.  Unscrew and open the conduit cover upper case. Remove the plug and fix the conduit connector to conduit cover

with lock nut.

 Connecting wire between indoor unit and outdoor unit should be UL listed or CSA approved 4 conductor UL listed

or CSA approved 4 conductor wires minimum AWG16 in accordance with local electric codes. Allowable connection cable length of each indoor unit shall be 98.4 ft (30 m) or less.

 Secure the connection cable onto the control board with the holder (clamper).  Ensure the colour of wires of outdoor unit and the terminal Nos. are the same to the indoor’s respectively.  Earth wire shall be Yellow/Green (Y/G) in colour and longer than other AC wires for safety reason.

Terminals on the indoor unit 1 2 3

Colour of wires

Terminals on the outdoor unit 1 2 3

Wire inser tion hole

WARNING

This equipment must be properly ear thed.

WIRE STRIPPING, CONNECTING REQUIREMENT

No loose strand when inserted

Indoor/outdoor connection terminal board

7/32" (5 mm)

or more

(gap between wires)

WARNING

Do not joint wires

RISK OF FIRE

JOINING OF WIRES MAY CAUSE OVERHEATING AND FIRE.

Conductor

fully inserted

ACCEPT PROHIBITED PROHIBITED

Wire stripping

(10±1 mm)

13/32" ±1/16"

Conductor

over inserted

Conductor not

fully inserted

Screw

Lock nut

Connector inlet hole

Terminal

Installer should open the ear th wire screw on the metal part when necessary for installation or service purpose.

Control box cover

Conduit Cover upper case

Connector

Indoor

123

Plug

Indoor-Outdoor connection wire inlet

OROR

Use com p lete wire without jo in ing.

Use approved socket and plug with earth pin.

Wire conn ection in this area must follow to national wiring rules.

11.2.7 Installation of Decorative Panel

The decorative panel has its installation direction. Confirm the direction by displaying the piping side.

1 Remove the air inlet grille by moving the catchers to center.

Air inlet grill

tch

Decorative panel

Hinge

Air inlet grill

* Hang the hinge on the hole of

decorative panel. (The direction of the ins ta llatio n is free.)

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