Panasonic CS-XE9DKE, CU-XE9DKE, CU-XE12DKE, CS-XE12DKE Service Manual

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Order No. MAC0502030C2

Air Conditioner

CS-XE9DKE CU-XE9DKE CS-XE12DKE CU-XE12DKE

CONTENTS

Page Page

1 Features 2

2 Functions

2.1. REMOTE CONTROL

2.2. INDOOR UNIT

2.3. OUTDOOR UNIT

3 Product Specifications

3.1. CS-XE9DKE CU-XE9DKE

3.2. CS-XE12DKE CU-XE12DKE

4 Dimensions

5 Refrigeration Cycle Diagram

6 Block Diagram

7 Wiring Diagram

8 Operation Details

8.1. Basic Funtion 15

8.2. Protection Control Features

8.3. Oxygen Enrich Operation

9 Operating Instructions

10 Installation Instructions

10.1. Safety Precautions

10.2. Indoor Unit

10.3. Outdoor Unit

11 Installation and Servicing Air Conditioner Using R410A

11.1. Outline

11.2. Tools For Installing/Servicing Refrigerant Piping

11.3. Refrigerant Piping Work

11.4. Installation, Transferring, Servicing

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

12 Servicing Information 80

12.1. Troubleshooting

12.2. Breakdown Self Diagnosis Function

12.3. Remote Control

12.4. Disassembly Of Parts

13 Technical Data

14 Exploded View (Indoor Unit)

14.1. CS-XE9DKE CS-XE12DKE

15 Replacement Parts List (Indoor Unit)

15.1. CS-XE9DKE CS-XE12DKE

16 Exploded View (Outdoor Unit)

16.1. CU-XE9DKE CU-XE12DKE

17 Replacement Parts List (Outdoor Unit)

1 Features

Product

•

Microcomputer-controlled compressor operating

−

frequency.

Vertical and horizontal airflow directions.

−

Five modes of operation selection.

−

Air filter with function to reduce dust and smoke.

−

Ionizer control for generate negative ion in discharge air.

−

Quiet mode to provide quiet operation.

−

Oxygen mode to supply oxygen enrich air to indoor

−

room.

24-hour timer setting.

−

Long installation piping up to 15 meter.

−

Super Alleru-Buster Filter prevent the growth of

−

bacteria, viruses trapped, trap dust, tobacco smoke and tiny particles.

17.1. CU-XE9DKE CU-XE12DKE 95

18 Electronic Circuit Diagram

18.1. Remote Control

18.2. Print Pattern Indoor Unit Printed Circuit Board (Main)

18.3. Print Pattern Indoor Unit Printed Circuit Board (Power)

18.4. Print Pattern Indicator Display

18.5. Print Pattern Outdoor Unit Printed Circuit Board (Main)

18.6. Print Pattern Outdoor Unit Printed Circuit Board (Oxygen)

104

105

106

107

108

Quality Improvement

•

Random auto restart after power failure for safety restart

−

operation.

Gas leakage detection.

−

Serviceability

•

Removeable and washable front panel.

−

Breakdown self diagnosis function.

−

Environmental Protection

•

Non-ozone depletion substances refrigerant (R410A).

−

2 Functions

2.1. REMOTE CONTROL

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

OFF/ON

MODE

QUIET

AIR SWING

Operation OFF / ON

Operation Mode Selection

•

HEAT COOL DRY FAN

Automatic Operation Heating Operation Cooling Operation Soft Dry Operation Fan Operation

Oxygen Mode Operation OFF / ON

Quiet Mode Operation OFF / ON

Ion Mode Operation OFF / ON

Airflow Direction Control

• Vertical Automatic Airflow Direction Control and Manual Airflow Direction Control (5 stages of adjustment).

•

Horizontal Automatic Airflow Direction Control and Manual Airflow Direction Control (5 stages of adjustment).

FAN SPEED

TEMP

TIMER

OFF

∧ ∨

SET

CANCEL

CLOCK

CHECK

RESET

Indoor Fan Speed Selection

• Low

•

AUTO FAN

MediumMedium Medium+ High Automatic Fan Speed

Room Temperature Setting

• Increase or decrease set temperature (16°C to 30°C)

Timer Operation Selection

• 24-hour, OFF / ON Real Timer Setting.

Time / Timer Setting

• Hours and minutes setting.

Timer Operation Set / Cancel

• ON Timer and OFF Timer setting and cancellation.

Clock Setting

• Current time setting.

Check Point

• Breakdown self diagnosis function.

Reset Point

• Clear memory data.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

2.2. INDOOR UNIT

AUTO

OFF / ON

Automatic Operation Switch

• Press for < 5s to operate Automatic operation mode. (Used when the remote control cannot be used.)

• Press continuously for 5s or < 8s to operate Test Run/Pump down. “Beep” sound will be heard. (Used when test running or servicing.)

• Press continuously for 8s or < 11s to operate Forced Heating Operation. “Beep, beep” sound will be heard.

• Press continuously for 11s or < 16s to change different remote control setting (A↔B Mode), or testify oxygen operation “Beep, beep, beep” sound will be heard.

• Press continuously for 16s or < 21s to omit or resume the remote control signal receiving sound or H14 Abnormality Detection Mode.

Operation Indication Lamps (LED)

• POWER (Green) .....

• (Green) .......

• ION (Green) ...........

• QUIET (Orange) .....

• TIMER (Orange) .....

Lights up in operation, blinks in Automatic Operation Mode judging deice, ON Timer sampling and Hot Start operation.

Lights up in Oxygen Mode Operation.

Lights up in Ionizer Mode Operation. Blinks in Ionizer

error. Lights up in Quiet Mode

Operation. Lights up in Timer Setting. Blinks in Self Diagnosis

Control.

Automatic and 5 Manual Indoor Fan Speeds

Automatic and 5 Manual Vertical Airflow Directions

Automatic and 5 Manual Horizontal Airflow Directions

Random Auto Restart Control

• Operation is restarted randomly after power failure at previous setting mode.

Delay ON Timer and OFF Timer

Microcomputer-controlled Room Temperature Control

Breakdown Self Diagnosis Function

Low Pressure Control (Gas Leakeage Detection)

Indoor Power Relay Control

Deodorizing Control

Anti-Dew Formation Control

Anti Freezing Control

Five Operation Modes

• Heating, Cooling, Soft Dry, Fan and Automatic Mode.

Oxygen Operation

• To suppy oxygen enrich air.

Quiet Operation

• To provide quiet operation.

Ionizer Control

• Ionizer control for generate negative ion in discharge air.

Anti-Cold Draft Control

Hot Start

Intake Air Temperature Control

High Pressure Control

Deice Operation

2.3. OUTDOOR UNIT

Time Delay Safety Control

30 seconds Forced Operation

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

Overload Protection

Total Running Current Control

Compressor Overheating Prevention Control

IPM (Power Transistor) Overheating Protection Control

Low Operation Frequency Protection Control

Outdoor Air Temperature Control

Deice Operation

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

3 Product Specifications

3.1. CS-XE9DKE CU-XE9DKE

Unit CS-XE9DKE CU-XE9DKE

Cooling Capacity kW

kcal/h

BTU/h

Heating Capacity kW

kcal/h

BTU/h

Moisture Removal l/h

Pint/h

Power Source (Phase, Voltage, Cycle) ø

Airflow Method OUTLET

INTAKE

2.6 (0.60 - 3.00)

2,240 (520 - 2,580)

8,870 (2,050 - 10,200)

3.6 (0.60 - 5.00)

3,100 (520 - 4,300)

12,300 (2,050 - 17,100)

1.6

(3.4)

Single

230

SIDE VIEW TOP VIEW

Air Volume Lo m3/min (cfm) Cooling; 6.5 (231) —

Heating; 7.1 (249)

Me m3/min (cfm) Cooling; 8.1 (286) —

Heating; 8.8 (312)

Hi m3/min (cfm) Cooling; 9.9 (350) Cooling; 30.0 (1,060)

Heating; 10.6 (370)

dB (A) Cooling; High 39, Low 26 Cooling; 46

Heating; High 40, Low 27 Heating; 47

Noise Level

Power level dB Cooling; High 50 Cooling; High 59

Heating; High 51 Heating; High 60

Electrical Data Input W Cooling; 700 (115 - 880)

Heating; 900 (110 - 1,400)

Running Current A Cooling; 3.3

Heating; 4.0

Piping Connection Port (Flare piping)

EER W/W (kcal/hw), BTU/hw Cooling; 3.71(3.20), 12.7 COP W/W (kcal/hw), BTU/hw Heating; 4.00 (3.44), 13.7 Starting Current A 4.00

inch inch

G ; Half Union 3/8”

L ; Half Union 1/4”

G ; 3-way valve 3/8”

L ; 2-way valve 1/4”

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

Unit CS-XE9DKE CU-XE9DKE

Pipe Size (Flare piping)

Drain Hose

Power Cord Length Number of core-wire

Inner diameter mm 16 — Length m 0.65 —

inch inch

G (gas side) ; 3/8”

L (liquid side) ; 1/4”

2.1 m

3 core wires × 1.0 mm

G (gas side) ; 3/8”

L (liquid side) ; 1/4”

— —

Dimensions Height inch (mm) 10 - 26/32 (275) 21 - 9/32 (540)

Width inch (mm) 31 - 15/32 (799) 30 - 23/32 (780)

Depth inch (mm) 9 - 9/32 (236) 11 - 3/8 (289) Net Weight lb (kg) 22 (10.0) 84 (38) Compressor Type — Involute scroll

Motor Type — Brushless (4-pole)

Rated Output W — 700 Air Circulation Type Cross-flow Fan Propeller Fan

Material AS + Glass Fiber 20% P.P

Motor Type Transistor (8-poles) Induction (6-poles)

Input W — 61.3 Rate Output W 30 25

Fan Speed Lo (Cool/Heat) rpm 800 / 840 —

Me (Cool/Heat) rpm 1,000 / 1,040 — Hi (Cool/Heat) rpm 1,240 / 1,270 770

Heat Exchanger Description Evaporator Condenser

Tube material Copper Copper

Fin material Aluminium (Pre Coat) Aluminium

Fin Type Slit Fin Corrugated Fin

Row / Stage (Plate fin configuration, forced draft)

2/15 1/20 FPI 21 19 Size (W × H × L) mm 610 × 315 × 25.4 732.1 × 508 × 22

Refrigerant Control Device — Capillary Tube Refrigeration Oil (c.c) — RB68A (360) Refrigerant (R410A) g (oz) — 840 (29.7) Thermostat Electronic Control — Protection Device Electronic Control Electronic Control

Length mm — C1, C2 ; 1,100, C3 ; 440

Capillary Tube Flow Rate l/min — C1, C2 ; 5.0, C3 ; 18.6

Inner Diameter mm — C1, C2 ; 1.2, C3 ; 1.7

Air Filter Material

Style

P.P.

Honeycomb

—

Fan Motor Capacitor µF, VAC — 1.8 µF, 400 VAC

•

Specifications are subject to change without notice for further improvement.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

3.2. CS-XE12DKE CU-XE12DKE

Unit CS-XE12DKE CU-XE12DKE

Cooling Capacity kW

kcal/h

BTU/h

Heating Capacity kW

kcal/h

BTU/h

Moisture Removal l/h

Pint/h

Power Source (Phase, Voltage, Cycle) ø

Airflow Method OUTLET

INTAKE

3.45 (0.60 - 4.00)

2,970 (520 - 3,440)

11,800 (2,050 - 13,600)

4.80 (0.60 - 6.50)

4,130 (520 - 5,590)

16,400 (2,050 - 22,200)

2.0

(4.2)

Single

230

SIDE VIEW TOP VIEW

Air Volume Lo m3/min (cfm) Cooling; 7.3 (258) —

Heating; 9.2 (325)

Me m3/min (cfm) Cooling; 9.2 (323) —

Heating; 10.3 (360)

Hi m3/min (cfm) Cooling; 10.9 (380) Cooling; 31.0 (1,090)

Heating; 11.8 (420)

dB (A) Cooling; High 42, Low 29 Cooling; 48

Heating; High 42, Low 33 Heating; 50

Noise Level

Power level dB Cooling; High 53 Cooling; High 61

Heating; High 53 Heating; High 63

Electrical Data Input W Cooling; 950 (120 - 1,280)

Heating; 1,260 (115 - 1,890)

Running Current A Cooling; 4.4

Heating; 5.6

Piping Connection Port (Flare piping)

Pipe Size (Flare piping)

EER W/W (kcal/hw), BTU/hw Cooling; 3.63 (3.13), 12.4 COP W/W (kcal/hw), BTU/hw Heating; 3.81 (3.28), 13.0 Starting Current A 5.60

inch inch

G ; Half Union 1/2”

L ; Half Union 1/4” G (gas side) ; 1/2”

L (liquid side) ; 1/4”

G ; 3-way valve 1/2”

L ; 2-way valve 1/4”

G (gas side) ; 1/2”

L (liquid side) ; 1/4”

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

Unit CS-XE12DKE CU-XE12DKE

Drain Hose

Power Cord Length Number of core-wire

Inner diameter mm 16 — Length m 0.65 —

3 core wires × 1.0 mm

2.1 m

— —

Dimensions Height inch (mm) 10 - 26/32 (275) 21 - 9/32 (540)

Width inch (mm) 31 - 15/32 (799) 30 - 23/32 (780)

Depth inch (mm) 9 - 9/32 (236) 11 - 3/8 (289) Net Weight lb (kg) 22 (10.0) 88 (40) Compressor Type — Involute scroll

Motor Type — Brushless (4-pole)

Rated Output W — 700 Air Circulation Type Cross-flow Fan Propeller Fan

Material AS + Glass Fiber 20% P.P

Motor Type Transistor (8-poles) Induction (6-poles)

Input W — 65.9 Rate Output W 30 29

Fan Speed Lo (Cool/Heat) rpm 880 / 1,100 —

Me (Cool/Heat) rpm 1,100 / 1,230 — Hi (Cool/Heat) rpm 1,310 / 1,410 830

Heat Exchanger Description Evaporator Condenser

Tube material Copper Copper

Fin material Aluminium (Pre Coat) Aluminium

Fin Type Slit Fin Corrugated Fin

Row / Stage (Plate fin configuration, forced draft)

2/15 2/24 FPI 21 17 Size (W × H × L) mm 610 × 315 × 25.4 703.8

× 504 × 36.4

735.0 Refrigerant Control Device — Capillary Tube Refrigeration Oil (c.c) — RB68A (360) Refrigerant (R410A) g (oz) — 1,020 (36.0) Thermostat Electronic Control — Protection Device Electronic Control Electronic Control

Length mm — C1, C2 ; 1,100, C3 ; 750

Capillary Tube Flow Rate l/min — C1, C2 ; 5.0, C3 ; 15.4

Inner Diameter mm — C1, C2 ; 1.2, C3 ; 1.7

Air Filter Material

Style

P.P.

Honeycomb

—

Fan Motor Capacitor µF, VAC — 2.0 µF, 400 VAC

•

Specifications are subject to change without notice for further improvement.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

4 Dimensions

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

5 Refrigeration Cycle Diagram

6 Block Diagram

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

7 Wiring Diagram

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

8 Operation Details

8.1. Basic Funtion

Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating 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.

8.1.1. 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.

Table (a): Auto Operation Mode Setting

Cooling/Soft Dry→Heating -2.0 Heating→Cooling/Soft Dry +2.0

Mode Shift: Temperature Shift (°C)

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

Table (b): Outdoor Air Temperature Shifting

Mode: Outdoor Temperature, X (°C): Temperature Shift (°C)

Cooling/Soft Dry 38 X 0.00 0.00

Heating 21 X 0.00 0.00

Table (c): Fan Speed Shifting

Mode: Fan Speed: Temperature Shift (°C) Cooling All +1.25 Soft Dry All +1.0 Heating Lo +1.0

XE9DK XE12DK

30 X 38 0.00 0.00 23 X 30 0.00 0.00

X 23 0.00 0.00

17 X 21 0.00 0.00

9 X 17 0.00 0.00

5 X 9 +0.50 +1.00 1 X 5 +1.00 +1.25

X 1 +1.50 +2.00

Hi, Me-, Me, Me+, Auto +0.25 (XE9DK), +0.50 (XE12DK)

Table (d): Start-Up Shifting

Cooling/Soft Dry -1.0 Heating +2.0

Mode within 60 Minutes from Start-up: Temperature Shift (°C)

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

8.1.2. Compressor Operation Frequency

Zone Intake Air Temperature - Internal Setting Temperature (°C) Freq. H

Cooling Soft Dry Heating Cooling Soft Dry Heating Remark

XE9DK XE12DK XE9DK XE12DK XE9DK XE12DK 1 -2.0 -3.0 1.0 2 1 5 5 1 1 2 -1.5 -2.5 0.5 2 5 10 10 3 8 3 -1.0 -2.0 0.0 4 8 10 10 6 13 4 -0.5 -1.5 -0.5 9 12 10 12 11 18 5 0.0 -1.0 -1.0 11 14 12 14 15 23 6 0.5 -0.5 -1.5 14 18 12 17 18 27 7 1.0 0.0 -2.0 17 22 14 17 21 30 8 1.5 0.5 -2.5 20 27 14 20 25 32 Fc, Fh 9 2.0 1.0 -3.0 20 27 16 24 25 32 Fc, Fh

10 2.5 1.5 -3.5 20 27 20 27 25 32 Fc, Fh 11 Nil Nil -4.0 Nil Nil Nil Nil 25 32 Fh 12 Nil Nil -4.5 Nil Nil Nil Nil 25 32 Fh

Operating Frequency Calculation Formula:

CompHz = Freq. A × Freq. H + Freq. C

Example Calculation:

Model No.: XE9DK

Operation Mode: Cooling

When Intake Air Temperature - Internal setting Temperature:

1.5°C

CompHz = Freq. A × Freq. H + Freq. C

= 1.9 × 20 + 1.0 = 39 Hz (It cuts down less than a decimal point)

Cooling & Soft Dry XE9DK XE12DK

Freq. A Freq. C Freq. A Freq. C

Low Load (Freq. H 10) 0.9 11.0 0.9 11.0

High Load (Freq. H > 10) 1.9 1.0 1.9 0.7

Heating XE9DK XE12DK

Freq. A Freq. C Freq. A Freq. C

Low Load (Freq. H 12) 1.4 10.6 1.4 10.6

High Load (Freq. H > 12) 2.2 1.0 2.1 1.8

Freq. Range XE9DK XE12DK

Cooling Fc 39 52

Operation Range 12 ~ 86 12 ~ 102

Heating Fh 56 69

Operation Range 14 ~ 128 14 ~ 128

Remarks:

When Freq. H is equal to 20 (XE9DK), 27 (XE12DK) for cooling, 25 (XE9DK), 32 (XE12DK) for heating or above, the Comp. may run at the freq. higher than Fc or Fh up to max. freq. operation.

Best Amenity Control

Every 90s (Cooling), 120s (Heating) maintain same zone Freq. H + 1 until Fc, Fh.

8.1.3. Cooling Operation

8.1.3.1. Thermostat control

Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -1.5°C.

•

Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > Compressor OFF

•

point.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

8.1.4. Soft Dry Operation

8.1.4.1. Thermostat control

Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -2.5°C.

•

Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > Compressor OFF

•

point.

8.1.5. Heating Operation

8.1.5.1. Thermostat control

Compressor is OFF when Intake Air Temperature - Internal Setting

•

Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature < Compressor OFF

•

point.

+1.0°C.

8.1.6. Automatic Operation

This mode can be set using remote control and the operation is decided by remote control setting temperature, indoor intake air temperature and outdoor air temperature.

During operation mode judgment, indoor fan motor (with speed of Lo-) and outdoor fan motor are running for 30 seconds to detect the indoor intake and outdoor air temperature. The operation mode is decided based on below chart.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

Values of T1, T2, and T3 depend on remote control setting temperature, as shown in below table. After the adjustment of T1, T2 and T3 values, the operation mode for that particular environment and remote control setting is judged and performed, based on the above operation mode chart, every 30 minutes.

Remote Control Setting Temperature (°C) T1 T2 T3

16 ~ 18 +10 +8 -5 19 ~ 22 +8 +7 -7 23 ~ 26 +7 +6 -7 27 ~ 30 +6 +5 -8

There is a temperature shifting on T1, T2, and T3 if the operation mode judged is changed from Cooling/Soft Dry to Heating or vice verse.

Operation Mode change from Temperature shifts (°C)

Cooling/Soft Dry→Heating -2 Heating→Cooling/Soft Dry +2

Example of operation mode chart adjustment:

From the above table, if remote control setting temperature = 25,

T1 = 25 + 7 = 32; T2 = 25 + 6 = 31; T3 = 25 - 7 = 18

The operation mode chart for this example is as shown in below figure and the operation mode to be performed will depend on indoor intake air temperature and outdoor air temperature at the time when the judgment is made.

8.1.7. Indoor Fan Motor Operation

A. Basic Rotation Speed (rpm)

Required rotation speed for fan is set to respond to the remote control setting (10 rpm unit)

•

[Cooling, Dry, Fan]

Remote Control — O O O O O — — —

Tab (rpm) SHI Hi Me+ Me Me- Lo Lo- SLo SSLo

XE9DK 1250 1200 1100 1000 900 800 780 730 720

XE12DK 1340 1310 1200 1090 980 880 780 730 720

[Heating]

Remote Control — O O O O O — — —

Tab (rpm) SSHI SHi Me+ Me Me- Lo Lo- SLo SSLo

XE9DK 1350 1270 1160 1050 940 840 790 730 720

XE12DK 1490 1410 1330 1250 1170 1100 840 730 720

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

B. Indoor Fan Control

i. Indoor fan control operation outline

1. Cooling / Dry / Fan / Ion / Oxygen

2. Heating

ii. Auto Fan Speed

1. Cooling, Ion, Oxygen

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

2. Heating

Note:

a. UP:

If move from Lo, the fan speed will be shifted to Maximum 1160 rpm (XE9DK), 1330 rpm (XE12DK).

•

If move from Maximum, the fan speed no change.

•

In up zone, 10 rpm is added for every 10s until Maximum 1160 rpm (XE9DK), 1330 rpm (XE12DK).

•

b. DOWN:

The fan speed will be decreased one step every 10 sec. until Minimum 840 rpm (XE9DK), 1100 rpm (XE12DK).

•

c. Current Output Fixed:

Maintain at present fan speed.

•

d. Instantaneous Maximum:

Fan speed will be increased to maximum auto fan speed.

•

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

iii. Max Capacity Condition

a) During Cooling operation, if all to the following condition is fulfilled, the indoor fan speed is set to Shi.

1. Indoor intake temperature

24°C.

2. Operation frequency 39 Hz (XE9DK), 52 Hz (XE12DK) & above.

3. Remote Control setting temperature 16°C.

4. Remote Control setting fan speed Hi.

5. Outdoor temperature

6. Operation start

30°C.

within 30 minutes.

* If any of above conditions is not valid, the conditio n is ended.

b) During Heating operation, if all to the following condition is fulfilled, the indoor fan speed is set to SSHi.

1. Indoor intake temperature is 17°C or above and less than 23°C.

2. Operation frequency 56 Hz (XE9DK), 68.5 Hz (XE12DK) & above.

3. Remote Control setting temperature 30°C.

4. Remote Control setting fan speed Hi.

5. Outdoor temperature < 4°C.

6. Operation start

2 hours.

* If any of above conditions is not valid, the conditio n is ended.

C. Fan Motor Control

i. Motor specification

High voltage PWM Sensorless Motor

ii. Feedba ck Control

1. Rotation speed feedback

Immediately after the fan started, rpm is checked and duty is added, and feedback control is performed every 1s.

iii. Abnormal Detection

1. Condition **Step out signal input

2. Control * Fan stop

3. Return * Restart after 5s

Feedback rotation speed is more than 2550 rpm or below 50 rpm. However, 10s after fan start, rotation abnormality is not detected.

However, in case the fan is stopped by the above conditions within 25s after fan has started, and happened continuously for 7 times, restart will not be performed.

Indoor fan motor lock abnormal (H19)

→

iv. Restart Prohibition Control

Prohibit to restart within 5s after fan stop. (except when power is ON)

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

D. Deodorizing Control

i. Control condition

Control at cooling/dry operation and auto fan speed setting.

No Deodorizing Control is performed during ON timer standby operation and during Anti-freezing control prevention.

ii. Operation

The odor status is arranged as below and it is shifted as follow.

* When COMP is ON 1→2→3

(Shift to 4 when COMP is OFF)

* When COMP is OFF 4→5→4

(Shift to 1 when COMP is ON)

* Start from 4 if the Thermostat is OFF during the start operation.

←→

8.1.8. Outdoor Fan Motor Operation

6 pole induction, 1 speed 780 rpm (XE9DK), 810 rpm (XE12DK).

•

It starts when compressor starts operation and it stops 30 seconds after compressor stops operation.

•

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

8.1.9. Airflow Direction

1. There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes).

2. Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchanger temperature and intake air temperature) and manual (angles of direction can be adjusted using remote control).

Vertical Airflow

Operation Mode Airflow Direction Vane Angle (°)

1 2 3 4 5

Heating Auto with Heat Exchanger 17

Temperature 58

Manual 7 17 33 49 67

Cooling, Soft Dry and Fan, Ion, O

Mode Judgement in Auto Auto 7

1. Automatic vertical airflow direction can be set using remote control; the vane swings up and down within the angles as stated

above. For heating mode operation, the angle of the vane depends on the indoor heat exchanger temperature as Figure 1 below. When the air conditioner is stopped using remote control, the vane will shift to close position.

Auto 7~37

Manual 7 17 25 33 41

2. Manual vertical airflow direction can be set using remote control; the angles of the vane are as stated above and the

positions of the vane are as Figure 2 below. When the air conditioner is stopped using remote control, the vane will shift to close position.

Horizontal Airflow

1. Automatic horizontal airflow direction can be set using remote control; the vane swings left and right within the angles as

stated below. For heating mode operation, the angle of the vane depend s on the indoor heat exchanger temperature as Figure 1 below.

Operation Mode Vane Angle (°)

Heating, with heat exchanger temperature A 55 ~ 125

B 90

Cooling, Soft Dry and Fan, Ion, O

55 ~ 125

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

2. Manual horizontal airflow direction can be set using remote control; the angles of the vane are as stated below and the positions of the vane are as Figure 2 above.

Pattern 1 2 3 4 5 Airflow Direction

Patterns at Remote Control

Vane Angle (°) 90 55 70 110 125

8.1.10. Quiet operation (Cooling Mode/Cooling area of Dry Mode)

A. Purpose

To provide quiet cooling operation compare to normal operation.

B. Control condition

a. Quiet operation start condition

When “quiet” button at remote control is pressed.

•

Quiet LED illuminates.

b. Quiet operation stop condition

1. When one of the following conditions is satisfied, quiet operation stops:

a. Quiet button is pressed again.

b. Stop by OFF/ON switch.

c. Timer “off” activates.

d. When change mode to fan only mode.

2. When quiet operation is stopped, operation is shifted to normal operation with previous setting.

3. When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed.

4. When operation mode is changed, quiet operation is shifted to quiet operation of the new mode, except fan only mode.

5. During quiet operation, if timer “on” activates, quiet operation maintains.

6. After off, when on back, quiet operation is not memorised.

C. Control contents

1. Fan speed is changed from normal setting to quiet setting of respective fan speed.

This is to reduce sound of Hi, Me, Lo for 3dB.

2. Fan speed for quiet operation is -100 rpm from setting fan speed.

8.1.10.1. Quiet operation under Soft Dry operation (Dry area at Dry Mode)

Automatic Fan Speed (Dry operation)

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

Manual Fan Speed (Dry operation)

8.1.10.2. Quiet operation (Heating)

A. Purpose

To provide quiet heating operation compare to normal operation.

B. Control condition

a. Quiet operation start condition

When “quiet” button at remote control is pressed.

•

Quiet LED illuminates.

b. Quiet operation stop condition

1. When one of the following conditions is satisfied, quiet operation stops:

a. Quiet button is pressed again.

b. Stop by OFF/ON switch.

c. Timer “off” activates.

d. When change mode to fan only mode.

2. When quiet operation is stopped, operation is shifted to normal operation with previous setting.

3. When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed.

4. When operation mode is changed, quiet operation is shifted to quiet operation of the new mode, except fan only mode.

5. During quiet operation, if timer “on” activates, quiet operation maintains.

6. After off, when on back, quiet operation is not memorised.

C. Control contents

a. Fan Speed manual

1. Fan speed is changed from normal setting to quiet setting of respective fan speed.

This is to reduce sound of Hi, Me, Lo for 3dB.

2. Fan speed for quiet operation is -100 rpm from setting fan speed.

3. Fan Speed Auto

•

If FM

-100 rpm reduce from normal Heating Auto Fan Speed

•

If FM

maintain RPM

Indoor FM RPM depends on pipe temp sensor of indoor heat exchanger.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

8.1.11. Delay ON Timer Control

Delay ON timer can be set using remote control, the unit with timer set will start operate earlier than the setting time. This is to provide a comfortable environment when reaching the set ON time.

Seventy minutes before the set time, indoor (at fan speed of Lo-) and outdoor fan motor start operate for 30 seconds to determine the indoor intake air temperature and outdoor air temperature in order to judge the operation starting time.

From the above judgment, the decided operation will start operate earlier than the set time as shown below.

8.1.12. Delay OFF Timer Control

Delay OFF timer can be set using remote control, the unit with timer set will stop operate at set time.

8.1.13. Auto Restart Control

1. When the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly) after power supply resumes.

2. This type of control is not applicable during ON/OFF Timer setting.

8.1.14. Auto Operation Switch

1. When the switch is pressed between 0 to 5 seconds, Auto Mode operation starts to function.

2. When the switch is pressed between 5 to 8 seconds, the unit is forced to operate in Cooling Mode.

3. When the switch is pressed between 8 to 11 seconds, the unit is forced to operate in Heating Mode.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

4. When the switch is pressed between 11 to 16 seconds and together with the signal from remote control, the unit can be changed to different controlling setting (A-B mode) or to testify oxygen operation.

5. When the switch is pressed between 16 to 21 seconds, either “H14” error detection selection mode or the remote control signal receiving sound can be cancelled or turned on.

8.1.15. Indoor Power Relay Control

Power relay will turn on during operation or in progress of stopping operation. Although operation stops, the power relay continues on for three minutes.

However, during an instantaneous power failure (< 0.5s), power relay will turn off. Then, it will turn on 2 minutes after power recover and the unit will operate as previous operation condition.

8.1.16. Ionizer Operation

Purpose

To provide fresh air effect to users by discharging minus ion to air.

Control Condition

a. Ionizer Only Operation.

1. When an air-conditioner unit is at “OFF” condition (standby) and an ION operation button at remote control is pressed.

Fan & ionizer on, ION LED illuminates, but power LED maintain off. (1→2)

However, fan speed can be adjusted later by customer during this operation.

Airflow direction (Horizontal Vane) control:

Follow vane direction control at cooling mode.

Horizontal vane can be changed by customer during ion only operation.

b. Operation Mode + Ionizer Operation.

1. Ionising Operation Start Condition

When an air conditioner unit is in “ON” condition (Heat, Cool, Dry, Fan, Auto mode) and an ION operation button at remote

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

control is pressed. Ionizer on & ION LED illuminates. (3→4)

Power LED also illuminates.

2. Ionising Operation Stop Condition

When one of the following condition is satisfied, ION operation stops.

a. Stopped by ON/OFF switch.

b. Timer OFF activates.

c. ION operation button is pressed again.

d. ION feedback signal shows error.

3. Ionizer operation status is not memorised by micon. After OFF, when operation is “ON” again, air conditio ner operates without ionizer operation.

c. Timer during ionizer operation

Refer to case study in next page for detail.

8.1.16.1. Ionizer Problem Detection Control

i. Purpose

To inform user of ionizer problems and detection.

ii. Two types of problem detection control:

Control Detection Method Protection Recovery

ERROR PROTECTION

(i) Actual ion: ON (i) Actual ion ON for 10s & OFF for

(ii) ion feedback signal:0V(ii) Within 24 counts, if anytime

BREAKDOWN PROTECTION

(i)

Actual ion: OFF

(ii)

ion feedback signal: 5V

30 min. continuously for 24 times (approx. 11 hr. 30 min.)

CONDITION becomes false then count is cleared.

(i) Actual ion OFF 2s (i)

(i) Actual ion is permanently OFF & ion

LED is blinking.

(ii) Press remote control ion button for

a) ON: Ion LED blink & buzzer = beep b) OFF: Ion LED OFF & buzzer = beep

Case 1: During Air-Con. ON. Air-Cond OFF with abnormal no. H26 is activated with timer LED is blinking permanently.

Case 2: During Air-Con. OFF.

(i)

Abnormal no. H26 is activated with timer LED is blinking permanently for both cases 1 & 2.

(ii) Press remote control ion button for

a) ON: Ion LED blink b) OFF: Ion LED OFF

(iii) Press any remote control button to

a) ON: Buzzer = beep beep beep beep b) OFF: Buzzer = beep beep beep beep

(i) Press ON/OFF button

to OFF

(ii)

Reset power

(iii)

Off by force operation

(i) When anytime

CONDITION becomes false.

(ii) Once recovered, ion &

Timer LED stops blinking permanently.

(iii) Main power reset.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

8.1.16.2. Ionizer Operation case study

Case 1

8.2. Protection Control Features

8.2.1. Protection Control For All Operations

8.2.1.1. Time Delay Safety Control

1. The compressor will not start for three minutes after stop of operation.

2. This control is not applicable if the power supply is cut off and on again or after 4-way valve deices condition.

8.2.1.2. 30 Seconds Forced Operation

1. Once the compressor starts operation, it will not stop its operation for 30 seconds.

2. However, it can be stopped using remote control or Auto Switch at indoor unit.

8.2.1.3. Total Running Current Control

1. When the outdoor unit total running current (AC) exceeds X value, the frequency instructed for compressor operation will be decreased.

2. If the running current does not exceed X value for five seconds, the frequency instructed will be increased.

3. However, if total outdoor unit running current exceeds Y value, compressor will be stopped immediately for three minutes.

XE12DK XE9DK

Operation Mode X(A) Y(A) X(A) Y(A) Cooling/Soft Dry (A) 6.5 17.0 4.5 17.0 Cooling/Soft Dry (B) 6.0 17.0 4.0 17.0 Heating 9.2 17.0 6.1 17.0

4. The first 30 minutes of cooling operation, (A) will be applied.

8.2.1.4. IPM (Power transistor) Prevention Control

A. Overheating Prevention Control

1. When the IPM temperature rises to 110°C, compressor operation will stop immediately.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

2. Compressor operation restarts after three minutes the temperature decreases to 95°C.

B. DC Peak Current Control

1. When electric current to IPM exceeds set value of 22.5 ± 4.0 A, the compressor will stop operate. Then, operation will restart after three minutes.

2. If the set value is exceeded again more than 30 seconds after the compressor starts, the operation will restart after 1 minute.

3. If the set value is exceeded again within 30 seconds after the compressor starts, the operation will restart after one minute. If this conditio n repeats continuously for seven times, all indoor and outdoor relays will be cut off.

8.2.1.5. Compressor Overheating Prevention Control

Instructed frequency for compressor operation will be regulated by compressor top temperature. The changes of frequency are as below figure.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

8.2.1.6. Low Pressure Prevention Control (Gas Leakage Detection)

1. When the conditions listed in below table occur, the compressor stops and restarts after three minutes.

2. If this phenomenon is continuously occurring for twice within 20 minutes, all indoor and outdoor relays will be cut off.

3. This control is not applicable for deice operation.

Conditions XE9DK XE12DK

Cooling/Soft Dry Heating Cooling/Soft Dry Heating

1. Compressor frequency (Hz) 47 56 67 69

2. Outdoor total running current (A) 1.21 1.21 1.21 1.21

3. Indoor heat exchanger temperature (°C) 20 25 20 25

Note: Conditions 1 and 2 needed to be happened continuously for 5 minutes.

8.2.1.7. CT Disconnection Detection

1. Control Starting Condition

a. Total Current is below 0.63 Amp.

b. Operating Frequency is 20 Hz and above.

c. Continuously for 20s.

2. Control Contents

a. Abnormal signal transmitted to indoor unit after 3 minutes outdoor power is supplied. (Indoor unit stop)

3. Control Cancellation Condition

Starting condition, (1) is not fulfilled.

8.2.1.8. Low Frequency Protection Control 1

When the compressor operate at frequency lower than 26 Hz (XE9DK), 28 Hz (XE12DK) for 240 minutes, the operation frequency will be increased to 26 Hz (XE9DK), 28 Hz (XE12DK) for two minutes.

8.2.1.9. Low Frequency Protection Control 2

When all the below conditions occur, minimum value (Freq. MIN) for the frequency instructed to compressor will change to 30 Hz (XE9DK), 32 Hz (XE12DK) for cooling and 21 Hz (XE9DK), 21 Hz (XE12DK) for Heating.

Temperature, T, for: Cooling/Soft Dry Heating Indoor intake air (°C) T 15 or T 30 Outdoor air (°C) T 16 or T 38 T 4orT 24 Indoor heat exchanger (°C) T 30 T 0

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

8.2.2. Protection Control For Cooling & Soft Dry Operation

8.2.2.1. Outdoor Air Temperature Control

The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below.

8.2.2.2. Cooling Overload Control

i. Pipe temperature limitation/restriction

Detects the Outdoor pipe temperature and carry out below restriction/limitation (Limit the compressor Operation frequency)

•

The compressor stop if outdoor pipe temperature exceeds 62°C

•

If the compressor stops 4 times in 20 minutes, Timer LED blinking (F95: outdoor high pressure rise protection)

•

8.2.2.3. Anti-Freezing Control

1. When indoor heat exchanger temperature is lower than 2°C continuously for six minutes, compressor will stop operating.

2. Compressor will resume its operation three minutes after the indoor heat exchanger is higher than 10°C.

3. At the same time, indoor fan speed increase +40 rpm compared to its normal operation.

4. If indoor heat exchanger temperature is higher than 10°C for five minutes, the fan speed will return to its normal operation.

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8.2.2.4. Anti-Dew Formation Control

Anti-Dew control is perform if the following conditions is fulfilled during cooling/dry operation.

a. Control Start Condition

1) Indoor Intake Air Temperature 24°C & above

2) Outdoor Air Temperature Refer below

3) Remote Control Setting Temperature 16°C & above, below 30°C

4) Fan tab Refer below Control start after 1) ~ 4) continued for more than 1 minutes.

b. Control Contents

* If the outdoor temperature 30°C

Me & above (include auto air flow)

XE9DK XE12DK

0min T 30 min 47 67

30 min T 90 min 39 52

90 min T 420 min 39 52

Below Me

XE9DK XE12DK

0min T 30 min 33 44

30 min T 90 min 26 36

90 min T 420 min 26 36

* If the outdoor temperature 30°C

Me & above (include auto air flow)

XE9DK XE12DK

0min T 30 min 47 67

30 min T 90 min 39 52

90 min T 420 min 39 52

Below Me

XE9DK XE12DK

0min T 30 min 33 44

30 min T 90 min 26 36

90 min T 420 min 26 36

c. Cancellation Condition

Perform cancellation within 420 minutes after start and return to initial control.

•

When changing the remote control setting temperature or air flow setting during the Anti-Dew control operation.

•

If the above starting conditio n is not fulfilled.

•

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8.2.3. Protection Control For Heating Operation

8.2.3.1. Anti Cold Draft Control

Indoor fan speed varies in accordance to indoor heat exchanger temperature, based on type of air volume and direction, as shown below.

1. Manual Fan Speed

2. Auto Fan Speed

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

Note:

a. UP:

If move from Lo, the fan speed will be shifted to Maximum 1160 rpm (XE9DK), 1330 rpm (XE12DK).

•

If move from Maximum, the fan speed no change.

•

In up zone, 10 rpm is added for every 10s until Maximum 1160 rpm (XE9DK), 1330 rpm (XE12DK).

•

b. DOWN:

The fan speed will be decreased one step every 10 sec. until Minimum 840 rpm (XE9DK), 1100 rpm (XE12DK).

•

c. Current Output Fixed:

Maintain at present fan speed.

•

d. Instantaneous Maximum:

Fan speed will be increased to maximum auto fan speed.

•

8.2.3.2. Intake Air Temperature Control

Compressor will operate at maximum of 56 Hz (XE9DK), 69 Hz (XE12DK) respectively if either one of the below conditions occur:

1. When the indoor intake air temperature is above 10°C and remote control setting fan speed is lower Me-.

2. When the indoor intake air temperature is 30°C or above.

8.2.3.3. Outdoor Air Temperature Control

The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the below figures. This control will begin one minute after the compressor starts.

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8.2.3.4. Overload Protection Control

The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown in below figures.

8.2.3.5. Preliminary Operation Control

1. Purpose

To improve heating cool start characteristich in which compared to previous model, achived 40°C of discharge air in shorter time.

2. Detection method

a. OD air temperature sensor

b. ON timer = ON

c. Control by OD PCB preliminary operation mode ON/OFF jumper wire

3. Preliminary operation control judgement condition

a. Preliminary operation start when all below condition is fulfilled .

i. Air-conditioner is stop

ii. OD air temp

iii. ON Timer is set to ON

b. Either one of below condition is true, the preliminary operation is stopped.

i. Air-conditioning is running

ii. OD air temp

iii. Compressor operation started

-15°C

-10°C

4. Control method

a. Control start

b. Compressor motor winding temp is increase by applying small amount of current with uncomplete power phase

c. Repetition of 1 min ON & 4 min OFF.

min before the On Timer set time.

time (min) 60

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8.2.3.6. Deice Control

A. Deice operation (Normal Deice Operation)

1. Detection methods

Outdoor heat exchanger temperature sensor, timer.

2. Deice operation time chart

Notes

a. During deice operation, the relationship between outdoor pipe temperature and time T5 is such operation will

proceed to next stage.

b. The deice will be performed only after 1 hour from when the operation has started.

c. When Comp. OFF by the sequence No. 1~7 compressor can restart back without 3 minutes waits (immediate

restart).

Outdoor heat exchanger temperature

a 15°C b 18°C c 25°C

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3. Explaination of operation

1) Before the deice is started, compressor frequency is set to the specified value for T1-timer.

2) After deice is started, the 4-way valve, OD Fan and ID fan are OFF.

3) After 4-way valve is OFF for 30 s, compressor frequency is set to the specified value.

4) Before deice is ended, if the outdoor heat exchanger temperature exceeds a°C, set compressor frequency and expansion valve to the specified values.

5) When outdoor heat exchanger temperature exceeds b°C, or 10 minutes has passed since the 4-way valve is OFF, operation at timer T5 will be started.

6) After the above 5) operation, if the outdoor heat exchanger temperature exceeds C°C, or after timer T5, the deice operation ending signal will be produced. The comp. Hz is set to the specified value and at the same time outdoor fan motor ON signal is produced.

7) After T6 the deice ending signal is produced, 4-way valve is set to ON, indoor fan is ON, Compressor frequency is FREE, and return to normal heating operation.

4. Deice operation judgement condition

When any of below a, b, c, d condition is satisfied, deice signal is produced.

a. Continuously, outdoor heat exchanger temperature < 3°C for 120 minutes and outdoor heat exchanger temperature <

-6°C for 3 minutes and outdoor air temperature > -1°C and Comp. is ON.

b. Continuously, outdoor heat exchanger temperature < 3°C for 80 minutes and outdoor heat exchanger temperature < -

7°C for 3 minutes and outdoor air temperature > -1°C and Comp. is ON.

c. Continuously, outdoor heat exchanger temperature < 3°C for 40 minutes and outdoor heat exchanger temperature < -

9°C and outdoor air temperature > -3°C for 3 minutes and Comp. is ON.

d. Continuously, outdoor heat exchanger temperature < 3°C for 40 minutes and outdoor heat exchanger temperature < -

11°C for 3 minutes and outdoor air temperature < -3°C and Comp. is ON.

However, the first deice will start only after minimum of 60 minutes in operation.

(2nd deice and onward shall follow above conditions)

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

8.3. Oxygen Enrich Operation

8.3.1. Purpose

Increase usage range by enable oxygen enrichment only operation.

8.3.2. Oxygen Enrichment Control -1

A. Indoor fan control

1. Air flow volume manual

Air flow volume as set by remote control. Speed same as for Cool mode.

2. Air flow volum auto

Repetition of 8 pattern (a ~ h) as shown below.

Each pattern, 10s

XE9DK XE12DK

Quiet

Program Air

However, if combined operation with other mode, priority is given to fan control of other mode.

Priority: Cool - Dry - Fan - Heat > Ionizer > Oxygen

B. Indoor air direction control

1. Air flow direction manual, auto→same as cooling operation.

However when combined operation with other mode, priority is given to air flow direction control of other mode.

Priority Heat - Cool - Dry - Fan > Ionizer > Oxygen

C. Start & Cancel condition of Oxygen enrich operation

1. By remote control ON/OFF button.

a. During Ionizer and Air Conditioner is OFF, if Oxygen button is pressed

Oxygen only operation.

→

b. During Ionizer only operation, if Oxygen button is pressed

Ionizer + Oxygen enrich operation.

→

c. During Oxygen only operation, If Oxygen button is pressed

Oxygen operation stop.

→

d. During Oxygen only operation, if ON/OFF button is pressed

Mode (as remote control setting) operation + Oxygen operation.

→

e. During Cool, Fan, Heat, Dry, Ionizer operation, if Oxygen button is pressed

Cool, Fan, Heat, Dry, Ionizer + Oxygen operation, if Oxygen button is pressed.

→

f. During Cool, Fan, Heat, Dry, Ionizer + Oxygen operation, if Oxygen button is pressed.

Cool, Fan, Heat, Dry, Ionizer operation.

→

g. During Cool, Fan, Heat, Dry, Ionizer + Oxygen operation, if ON/OFF button is pressed

All operation stop.

→

No. B 820 870 No. A 790 840 No. C 760 810

W C 30 30

2. When operate together with ON/OF timer.

a. ON timer is set during operation stop.

Previous operation is Oxygen only,

Previous mode (Auto, Heat, Cool, Dry, Fan) only will operate.

→

b. ON timer is set during Oxygen only operation.

Previous mode (Auto, Heat, Cool, Dry, Fan) + Oxygen will operate.

→

c. OFF timer during Oxygen only operation.

Oxygen operation stop.

→

d. There is no preliminary operation for Oxygen enrich operation.

3. Remote control setting during Oxygen only operation.

Remote control setting is acceptable during oxygen only operation.

•

D. Oxygen monitor indication

During oxygen enrich operation, oxygen monitor LED lights ON.

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Oxygen LED lights is ON or OFF when Oxygen operation is set to ON or OFF regardless of outdoor oxygen supply level.

•

In case of indoor unit is totally stop and vacuum pump is still running (during delay stop operation) oxygen LED is blinking (ON 1s - OFF 1s).

8.3.3. Oxygen Enrich Control -2

A. Oxygen enrich system

1. Indoor intake air temp sensor

2. Indoor oxygen discharge hole

3. Remote control

4. Oxygen LED

5. Connecting hose

6. Vacuum pump

7. Pump discharge hole

8. Pump suction hole

9. Pump motor cooling fan A

10. Pump motor cooling fan B

11. Pump motor OLP

12. 2 way valve

13. Pressure reduction device

14. Odor filter

15. Oxygen enrich membrance

16. Outdoor air temp sensor

17. Outdoo r oxygen discharge hole

18. Outdoor fan motor

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B. Oxygen enrich control overview

Upon receiving ON signal from indoor unit, the outdoor vacuum pump, fan & 2 way valve will operate according to the various protection control setting.

C. Oxygen enrich protection control (O2supply level judgement)

1. Vacuum pump protection

Base on outdoor air temp., Comp. top temp., the oxygen supply level is decided.

•

Priority is given to the lower level.

•

Vacuum pump operation cycle time = EOPMPS01.

•

supply level change only after vacuum pump ON/OFF operation completed 1 cycle time if the new level is higher than

•

the present level.

supply level change immediately if the new level is lower than the present level (avoid O2supply level hunting).

•

Vacuum pump operate with ON/OFF timing according to O

•

supply level except during continuous running required by

freeze-up prevention control (F-2).

E.g. Oxygen supply level change timing (vacuum pump continuous running control, (C-2) not yet activated).

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Outdoor air temp. status O2supply level Comp. top temp. status O2supply level

5 0 2 1 4 1 1 2 3 2 0 3 2 3 1 Continuous running ( )

(freeze-up prevention control)

0 0

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O2Enrich

Operation

OFF 0 EOPMPS01 - EOPMPS04 EOPMPS04 Continuous OFF

ON 1 EOPMPS01 - EOPMPS02 EOPMPS03 3 min ON 7 min OFF

In this condition, when Oxygen operation is ON, vacuum pump run continuously regardless of O2supply level (vacuum pump continuous running control (C-2) is deactivated).

For detail, refer to freeze-up prevention, vacuum pump continuous running control (F-2).

Protection Control

supply level

2 EOPMPS01 - EOPMPS03 EOPMPS02 7 min ON 3 min OFF 3 0 EOPMPS01 Continuous ON

Vacuum Pump Operation Time Remark

OFF time (min) ON time (min)

Detail Explanation for Specification

Data Name Item Data EOPMPS01 Vacuum pump operation cycle time 10 min EOPMPS02 O2supply level 2, vacuum pump ON time 7min EOPMPS03 O2supply level 1, vacuum pump ON time 3min EOPMPS04 O2supply level 0, vacuum pump ON time 0min

•

Base on outdoor air temp. & comp. top temp., vacuum pump ambient temp. is projected to prevent vacuum pump temp. rise.

•

To prevent ice formation in connecting tube during low outdoor air temperature, continuous running protection control is implemented.

(During low outdoor temp., stagnant water in tube may freeze-up if ON/OFF operation is implemented).

•

If outdoor temp. sensor abnormal, open or short circuit, temperature reading become below -10°C or above 40°C where the O

supply level will become 0 (operation stop).

•

Outdoor air temp. update/renew every 30 min during soft dry mode (instant renewal for other mode).

Data Name Description Data EOPMPT01 Outdoor air temp. control temp. -12°C EOPMPT02 Outdoor air temp. control temp. -10°C EOPMPT03 Outdoor air temp. control temp. -10°C EOPMPT04 Outdoor air temp. control temp. -8°C EOPMPT05 Outdoor air temp. control temp. 3°C EOPMPT06 Outdoor air temp. control temp. 5°C EOPMPT07 Outdoor air temp. control temp. 26°C EOPMPT08 Outdoor air temp. control temp. 27°C EOPMPT09 Outdoor air temp. control temp. 32°C EOPMPT10 Outdoor air temp. control temp. 33°C EOPMPT11 Outdoor air temp. control temp. 44°C EOPMPT12 Outdoor air temp. control temp. 45°C EOPMPT13 Outdoor air temp. correction value, Heat 0 deg EOPMPT14 Comp. top temp. control 44°C EOPMPT15 Comp. top temp. control 45°C EOPMPT16 Comp. top temp. control 69°C EOPMPT17 Comp. top temp. control 70°C

2. Vacuum pump continuous running control

•

Vacuum pump continuous running control

(Life span counter measure)

Direction : O2supply level, continuous running instruction time Control : O2supply level

i. Action explaination : O2supply level when continue for EOPMPS05 min, the proceeding level 3 will limited to maximum level

ii. Exceptional condition : a. Outdoor air temp. status 1 (ice prevention control activated).

MOPMPL01.

b. O2supply level detection is lower than 3.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

Detail Explanation for Specification

Life span counter measure

−

Increase life span by limiting vacuum pump continuous running period (assure life span of over 30,000h).

Temp. rise counter measure.

−

OLP

−

Vacuum pump OLP

i. Open temp. : 120 ± 5°C ii. Close temp. : 76 ± 15°C

Data Name Item Data EOPMPS05 Vacuum pump continuous running control judgement time FF MOPMPL01 Vacuum pump continuous running maximum supply level 2

MOPMPS06 Vacuum pump restart prevention time 30s MOPMPS07 Vacuum pump delay start time 30s

Note: This control is deactivated when EOPMPS05 is set to FF.

3. Vacuum pump restart prevention control

To avoid starting noise cause by frequent restart of vacuum pump in short period of time.

•

If combined with other operation mode where outdoor fan running, restart control time is MOPMPS06.

•

If Oxygen only operation, restart control time is MOPMPS06 + MOPMPS07.

•

Restart prevention control does not operate when Oxygen is pressed ON during Oxygen delay OFF control.

•

4. 2 way valve control

2 way valve is ON periodically to avoid it from locking after long period of idling.

Activation condition

•

When OD power relay ON signal is generated.

Activation content

•

2 way valve is ON for about 5s (valve open).

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

D. Oxygen Enrich Starting Control

1. Purpose

Improve Oxygen supply amount by supplying fresh air to surrounding area of Oxygen enrich membrane during starting

•

time.

Masking of vacuum pump starting sound.

•

Prevent vacuum pump starting difficult y at low outdoor temperature.

•

Flash out water trapped in connecting tube at low outdoor temperature.

•

2. Normal operation

Outdoor fan is ON as operation start. Vacuum pump ON after operation start after MOPMPS07 second. At the same time when fan is ON, 2 way valve is ON for EOBENS01 (EOBENS02) second (2 way valve won’t operate if outdoor air temp higher than EOBENT01).

a. Outdoor fan is ON when Oxygen operation start.

b. Outdoor fan is OFF during deice operation when Oxygen operation start.

At condition a ~ b, vacuum pump & 2 way valve ON immediately as Oxygen operation start.

OD air temp., T 2 way valve ON duration (min) EOBENT01 T 0

EOBENT02 T EOBENT01 EOBENS01

T EOBENT02 EOBENS02

Detail Explanation for Specification

Possibilities of poor start-up of vacuum pump

At low outdoor air temp., O

•

Priority to stopping control.

•

due to deterioration of bearing grease at low

supply level fixed at level 3.

outdoor temperature.

↓

2 way valve open to reduce load

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

Date name Description Data

MOPMPS07 Vacuum pump operation start delay time 30s

EOBENS01 Oxygen enrich start control 2 way valve operation time (Ave) 30 min EOBENS02 Oxygen enrich start control 2 way valve operation time (Low) 30 min EOBENT01 Oxygen enrich start control, outdoor air temperature -5°C EOBENT02 Oxygen enrich start control, outdoor air temperature -10°C

3. Low voltage operation

As counter action at low voltage where starting torque reduce, low voltage detection is done where the 2 way valve opening time is increased.

a. Voltage memory

DC voltage detection is done once power relay is ON and before compressor start. If the detected voltage is lower than EOBENV01, voltage conditio n is set to <Low voltage>. If detected voltage is EOBENV01 or higher, voltage conditio n is set to <Normal>. (Judgement is done every time power relay is ON).

b. Action

Voltage conditio n judge as <Low voltage>.

•

Oxygen enrich start control outdoor air temperature EOBENT01(02) is shifted by adding EOBENT03 and 2 way valve start control activation range is enlarge.

•

Oxygen enrich start control 2 way valve open duration EOBENS01(02) is increased by adding EOBENS03.

Outdoor air temp. T Valve ON duration

EOBENT01 + EOBENT03 T 0

EOBENT02 + EOBENT03 T EOBENT01 + EOBENT03 EOBENS01 + EOBENS03

T EOBENT02 + EOBENT03 EOBENS02 + EOBENS03

Date name Description Data EOBENV01 Low voltage judgement DC voltage 180V EOBENT03 Low voltage start control, outdoor air temp. shift valve +10°C EOBENS03 Low voltage start control, 2 way valve activation prolong time 40 min

E. Oxygen Enrich Stop Control

•

Masking stopping sound of vacuum pump.

•

Blow out residual water in the tube.

Action outline

•

Vacuum pump

•

OD fan

•

2 way valve

: O2supply level→0, vacuum stop after EOTteisi second. : After vacuum pump stop, OD fan stop after OTfan1 second. : As O2supply level→0, 2 way valve ON for EOTteisi second and then OFF.

(Note: EOTteisi varies as outdoor air temp. change)

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

Exceptional condition

During vacuum pump delay ON within MOPMPS07 second in the start control

•

Outdoor air temp. T EOTteisi

EOBENT04 T EOBENS04 EOBENT05 T EOBENT04 EOBENS05 EOBENT06 T EOBENT05 EOBENS06

T EOBENT06 EOBENS07

Detail Explaination for Specification

In order to blow out water from tube, 2 way valve is open before vacuum pump stop during stop operation. At this condition,

•

air flow increase 4 ~ 5 times, where indoor O

Freeze-up countermeasure (2 way valve)

•

supply sound will increase but not noticeable at normal operation.

In order to blow out residual moisture in tube during stop operation (flow velocity up, low humid air intake). Stop delaying time change as the amount of dew formed depend on outdoor air temperature.

Date name Description / Designation Data

OTfan1 Outdoor fan delay stop time 30s EOBENS04 Hi OD temp., stop control, pump & valve ON time 0s EOBENS05 Me OD temp., stop control, pump & valve ON time 150s EOBENS06 Lo OD temp., stop control, pump & valve ON time 150s EOBENS07 SLo OD temp., stop control, pump & valve ON time 270s EOBENT04 Stop control, Outdoor air temp. 10°C EOBENT05 Stop control, Outdoor air temp. 2°C EOBENT06 Stop control, Outdoor temp. -3°C

Power relay delay stop time is 5 min during stop operation. Therefore maximum delay stop time is 270s.

•

F. Oxygen Enrich Freeze-Up Preven tion Control

1. Control outline

To avoid water in tube from freeze-up during low outdoor temperature.

•

Only vacuum pump restart control of protection control is operating.

•

2. Freeze-up prevention, vacuum pump continuous running control

Avoid freeze-up in tube by vacuum pump continuous running at low outdoor temp.

•

Start condition

•

a. OD temp status 1(a,b)

b. O

supply level 0

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

Control content

•

a. Continuous running disregard of oxygen supply level

Cancellation condition

•

Start condition not fulfilled

−

Exceptional condition

•

During deice & MOPMPS08 after deice, OD temp. status does not update as the OD fan is stop. (Air temp. detection disable).

3. Freeze-up prevention, 2 way valve control

Open valve periodically to prevent freeze-up during low OD air temp.

•

Open valve duration change according to air temp. status (1a or 1b).

•

a. Start condition

Either one of below condition is fulfilled .

supply leve 0 & OD air temp status shift to 1(a,b).

i. O

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

ii. OD air temp. status 1(a, b) & O2supply level 0

b. Control content

2 way valve is ON periodically as shown below.

→

Freeze-up prevention, 2

way valve control

OD air temp. 2 way valve OFF time 2 way valve ON time

Status 1a EOBENS08 - EOBENS09 EOBENS09 Status 1b EOBENS08 - EOBENS10 EOBENS10

c. Control cancellation condition

i. O

supply level shift to 0

ii. OD air temp status shift from 1

→

Either i. or ii. is true, timer reset & 2 way valve ON/OFF operation end.

Note: 2 way valve control for freeze-up prevention at start condition ii. include Oxygen enrich start control.

Detail Explanation for Specification

Date name Designation Data EOBENS08 Freeze prevention, 2 way valve control cycle time 20 min EOBENS09 OD air status 1a, 2 way valve ON time 15 min EOBENS10 OD air status 1b, 2 way valve ON time 15 min EOPMPT01 OD air temp. control -12°C EOPMPT02 OD air temp. control -10°C EOPMPT03 OD air temp. control -10°C EOPMPT04 OD air temp. control -8°C EOPMPT05 OD air temp. control 3°C EOPMPT06 OD air temp. control 5°C

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

G. Installation (O2) Check Control

From the installation check signal release by indoor unit, vacuum pump & 2 way valve is ON continuously for installation fault detection.

(Pump & valve delay start & delay OFF control is inactive).

H. OD Fan Control (ON or OFF)

1. Oxygen only operation

OD fan is ON or OFF according to Oxygen enrich control.

2. Combined operation with other mode

When combined operation with other mode, OD fan control is as follows;

OD Fan = ON : If OD fan status is ON in any of the combined operation mode

(except during deice operation of Heating mode)

OD Fan = OFF : i) Deice operation in progress

ii) If OD fans status is OFF in all of the combined operation mode

Installation Precautions

Operation

Precautions

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

9 Operating Instructions

Thank you for purchasing Panasonic Air Conditioner

■ Definition

To prevent personal injury, injury to others and property damage, the following instructions must be followed.

Incorrect operation due to failure to follow instructions will cause harm or damage, the seriousness of which is classiﬁ ed as below:

Warning

This sign warns of death

or serious injury.

Caution

This sign warns of injury

or damage to property.

The instructions to be followed are classiﬁ ed by the following symbols:

This symbol denotes

an action that is

PROHIBITED.

SAFETY PRECAUTIONS

Installation Precautions

Warning

Do not install, remove and reinstall the unit by yourself.

• Improper installation will cause leakage, electric shock or ﬁ re. Please consult an authorized dealer or specialist for the installation work.

Caution

• This air conditioner must be earthed. Improper grounding will cause electric shock.

• Ensure that the drainage piping is connected properly. Otherwise, water will leak.

• Current leakage protection equipment must be installed. Otherwise, electric shock or ﬁ re may occur.

• Do not install the unit in a potentially explosive atmosphere.

Operation

• Do not share power outlet.

• Do not modify power cord.

• Do not use an extension cord.

• Do not operate with wet hands.

• Do not operate or stop the unit by inserting or pulling out the power plug.

• Do not insert ﬁ nger or other objects into the indoor or outdoor unit.

• Do not attempt to repair the unit by yourself.

• Do not use rechargeable (Ni-Cd) batteries.

• Keep the remote control away from infants and small children to prevent them from accidentally swallowing the batteries.

Precautions

Warning

• Insert the power plug properly.

• Use speciﬁ ed supply cord.

• If the supply cord is damaged or needed to be replaced, it must be replaced by the manufacturer or its service agent or a similarly qualiﬁ ed person in order to avoid a hazard.

• Remove the batteries if the unit is not going to be use for a long period of time.

New batteries of the same type must be

• inserted following the polarity stated to prevent malfunction of the remote control.

• In case of emergency or abnormal condition (burnt, smell, etc) occurs, turn off the power supply and unplug.

These symbols denote

actions that are

COMPULSORY.

• Do not pull the cord to disconnect the plug.

• Do not wash the unit with water, benzene, thinner or scouring powder.

• Do not use for other purposes such as preservation of food.

• Do not use any combustible equipment at airﬂ ow direction.

• Do not sit or place anything on the indoor or outdoor unit.

• Do not expose directly to cold air for a long period.

Safety Regulation

The appliance is not intended for use by young children or inﬁ rm person without supervision. Young children should be supervised to ensure that they do not play with the appliance.

Replacement or installation of power plugs shall be performed by authorized/qualiﬁ ed personnel only. The wires in this mains lead are coloured in accordance with the following code:

Different countries may have different colour coding for the wires.

(GB Standard)

Caution

• Ventilate the room regularly.

• Pay attention as to whether the installation rack is damaged after long period of usage.

• Switch off the power supply and unplug before cleaning or servicing.

• Turn off the power supply and unplug if the unit is not used for a long period of time.

Operation Condition (OC)

Use this air conditioner under the following temperature range.

DBT: Dry Bulb Temperature WBT: Wet Bulb Temperature

Maximum Temperature (COOL)

Maximum Temperature (HEAT)

Minimum Temperature (COOL)

Minimum Temperature (HEAT)

Indoor Outdoor

DBT WBT DBT WBT

32 23 43 26

30–2418

16 11 16 11

1 6 – - 5 - 6

Note: The illustrations in this manual are for explanation purposes only and may differ from the

Remote Control

IIndoor Unit

Outdoor

Unit

actual unit. It is subjected to change without notice for future improvement.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

PRODUCT OVERVIEW

ndoor Unit

Decorative panel

Auto OFF/ON button

Air filter

Outdoor

Air inlet

(side)

Remote Control

Oxygen operation

Operation mode

Airflow direction adjustment

Memory reset

Discharged air

Unit

Air inlet

LCD display

Check

(rear)

Airflow direction louver

Air outlet

Air intake

Front panel

Super alleru-buster Filter

Receiver

Indicators

Transmitter

Temperature setting

Off/On

Quiet operation

Ion operation

Fan speed selection

Timer setting

Clock setting

Ionizer

Do not touch during operation

■ About

Remote Control Preparation

2. Insert

1. Pull out

3. Press CLOCK button

5. Press again to conﬁ rm

• Timer operation will be based on current time set.

• The batteries can be used for approximately 1 year.

• The batteries must be recycled or disposed of properly.

Remote Control Signal

• Make sure it is not obstructed.

• Maximum distances: 10m.

• Certain fluorescent lights may interfere with signal transmission. Consult your dealer.

Auto OFF/ON Button

• To operate the unit if the

remote control is misplaced or malfunctioning.

Action

Press once

Press until “beep”

sound and release.

Press until “beep-

beep” sound and

release. Press until 3“beep” sound and release.

Press again until

“beep” sound and

release.

• To OFF, press again the Auto OFF/ ON button.

batteries

(AAA or

R03)

4. Set current time

Operation

mode

Automatic

Operation

Cooling

Operation

Heating

Operation

Oxygen

Operation

Troubleshooting

● Operation delayed for few minutes after restart.

● Sound like water ﬂ owing during operation.

● Mist emerges from indoor unit.

● Noisy during operations.

● Remote control/display does not work.

● The unit cannot operate.

● Outdoor unit emits water/steam.

➤ This is a normal self protection control.

➤ Caused by refrigerant ﬂ ow inside.

➤ Condensation effect due to cooling process.

➤ Installation work could be slanted or front panel didn’t close properly.

➤ Check whether batteries are correctly inserted or needs replacement.

➤ Check either circuit breaker is tripped, power plug is inserted correctly or

timer is used correctly.

➤ Condensation or evaporation happens at piping surface.

Auto, Heat, Cool, Dry, Fan

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

■ Operation Details

AUTO - Automatic Operation

• The unit will automatically select the operation mode according to the setting, outdoor and room temperature. During operation mode selection, power indicator blinks. For every 30 minutes, the operation mode is reselected.

• The range of temperature can be selected from 16°C~30°C.

HEAT - Heating Operation

• Enables you to enjoy the warming effect at your preferred setting temperature.

• For cold air prevention, air might not blow out immediately and power indicator blinks when operation starts.

• Also operates in defrost mode (maximum 10 minutes) where by the power indicator blinks. The melted frost is drained at outdoor unit and indoor fan is stopped.

• The range of temperature can be selected from 16°C~30°C.

COOL - Cooling Operation

• Enables you to enjoy the cooling effect at your preferred setting temperature.

• The range of temperature can be selected from 16°C~30°C.

DRY - Soft Dry Operation

• Enables you to set the desired temperature at low fan speed which provides you with the dehumidifying surroundings.

• The range of temperature can be selected from 16°C~30°C.

FAN - Air Circulation Operation

• Fan operation to circulate air in the room.

HOW TO OPERATE

Auto, Heat, Cool, Dry, Fan

Select the desired operation.

AUTO

FAN

DRY

HEAT

COOL

Start the operation.

Set the temperature.

● Oxygen, Quiet and Ion operations could be activated in all operation modes.

● Press

Hint

● To save electricity, close the curtains when using air conditioner to prevent sunlight and heat from coming in.

● Approximately 10% of electricity can be saved if you set the temperature 1°C higher in cooling operation or 2°C lower in heating

operation than the desired temperature.

● If you wish to have the cool air blowing directly on you, set the airﬂ ow direction downward but not for an excessive length of time,

as it may harm your health.

Troubleshooting

● The room has a peculiar odour.

● Air conditioner does not cool or heat efﬁ ciently.

button again to stop the operation.

➤ This may be a damp smell emitted by the wall, carpet, furniture or clothing

in the room.

➤ Ensure the temperature has been set correctly. ➤ Ensure windows and doors have been closed properly. ➤ Ensure ﬁ lters are cleaned or replaced when necessary. ➤ Ensure inlet and outlet vents of the units have not been obstructed.

OXYGEN

Oxygen

Quiet,

Ion, Fan Speed,

Air Swing

ION

FAN SPEE

AIR SWING

QUIET

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

HOW TO OPERATE

Oxygen, , Air Swing

OXYGEN

Enables oxygen operation.

AIR SWING

Adjust the vertical or horizontal airﬂ ow direction louver.

Quiet,

Ion, Fan Speed,

QUIET

Enables quiet operation.

ION

Enables ion operation.

DFAN SPEED

Select fan speed.

■ Operations Details

OXYGE N

• Enriches oxygen content in fresh air.

• Oxygen operation could be activated independently.

QUIET

• To provide a quiet environment.

ION

• To provide fresh air effect by producing negative ions.

• Ion operation could be activated independently.

• Press operation.

FAN SPEED

• To provide you with the various fan speed selections.

• There are 5 levels of fan speed in addition to automatic fan speed.

• Automatic fan speed:

The speed of the indoor fan is

automatically adjusted according to the operation.

AIR SWING

• To ventilate air in the room.

• There are 5 selections in addition to automatic vertical air ﬂ ow direction.

• If automatic vertical airﬂ ow direction has been set, the louver swings up and down automatically.

• To ventilate air in the room.

• There are 5 selections in addition to automatic horizontal air ﬂ ow direction.

• If automatic horizontal airﬂ ow direction has been set, the louver swings left and right automatically.

button to stop the

● Oxygen, Quiet and Ion operations could be cancelled by pressing the respective button again.

Troubleshooting

● ION indicator on the indoor unit is blinking.

● Indoor fan stops occasionally during Automatic

Fan Speed setting.

● Indoor fan stops occasionally during heating

operation.

● Soft splashing sound from indoor unit during

oxygen operation.

● Smell during oxygen operation.

● Slight increase in sound level from outdoor unit.

➤ Press ION button twice. If the indicator is still blinking, please consult the dealer.

➤ This is an advanced feature that helps to remove smell from the surrounding

area during operation.

➤ To avoids unintended cooling effect.

➤ Sound emitted by high humidity airﬂ ow from oxygen tube.

➤ Oxygen brought in from the outside air may contain odour. Remove source of

odour around the outdoor unit.

➤ Sound increased cause by oxygen operation.

• Please do not adjust the vertical and horizontal airﬂ ow direction louver manually.

Timer

CANCEL

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

■ Operation Details

TIMER

• Use the ON timer to turn on the air conditioner at the desired time. This will give you a cooling or warming environment, e.g. when you return from work or wake up.

• When the ON timer is set, operation will start up to 35 minutes before the actual set time.

• Use the OFF timer to stop the air conditioner operation at the desired time. This can save electricity while you are going out or sleeping.

• The set timer will repeat daily once it is set.

• If there is a power failure, you can press SET button to restore the previous setting once the power is resumed.

• If the timer is cancelled, you can restore the previous setting by pressing SET button.

CHECK

• When there is error, the unit stops its operation and timer indicator blinks.

1. Press for 5 seconds.

HOW TO OPERATE

Timer

Select ON or OFF timer.

Set the desired time.

Conﬁ rm the setting.

2. Browse for respective error code, where “beep” sounds are heard.

3. Turn off the power supply and call authorized distributor.

Note: Press the ‘Reset’ button to quit checking.

Unit might operate with limited function depending on error found. (Operation starts, 4 “beep” sounds are heard)

Hint

● For your convenience, you could set the air conditioner to operate automatically by using both ON and OFF timer.

Troubleshooting

● TIMER indicator always on.

● POWER indicator is blinking 35 minutes before ON

timer is activated.

CANCEL

Cancel the selected timer.

● Ensure the clock on the remote control has been set correctly.

● You could use the ON and OFF timers at the same time.

● To cancel either the ON or OFF timer, press

press

➤ Timer is activated and the setting will repeat itself daily.

➤ The unit is determining the operation mode by sensing the room

temperature. This happens when it has been set to AUTO operation mode.

or , then

Switch off the power supply before cleaning

SUPER ALLERUBUSTER

FILTER

IONIZER

FRONT PANEL

INDOOR UNIT

AIR FILTER

ECORATIVE

PANEL

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

CARE & CLEANING

DECORATIVE

Remove, wash and dry.

Release carefully.

AIR FILTER

Vacuum, wash and dry.

Switch off the power supply before cleaning

FRONT PANEL

PANEL

Raise and pull to remove. Wash and dry.

Remove

SUPER ALLERUBUSTER

Vacuum the super alleru-buster ﬁ lter.

FILTER

IONIZER

Clean with cotton bud.

INDOOR UNIT

Wipe gently.

■ Washing Instructions

• Do not use benzene, thinner or scouring powder.

• Use soaps or neutral household detergent (

• Do not use water with temperature higher than 40°C.

INDOOR UNIT

• Wipe the unit gently with a soft, dry cloth.

AIR FILTER

• It is recommended to clean the air ﬁ lters once every 2 weeks.

• Purchase the replacement ﬁ lter if it is damaged.

Part no.: CWD001053 (Left)

CWD001054 (Right)

SUPER ALLERU-BUSTER

• It is recommended to clean the ﬁ lter every 6 months.

• Replace the ﬁ lter every 3 years or purchase the replacement ﬁ lter if it is damaged.

Part no.: CZ-SA14P

IONIZER

• It is recommended to clean the ionizer every 6 months.

■ Preparation for extended Non-operation

• Operate the unit for 2~3 hours using heating operation to dry the internal parts.

• Turn off the power supply and unplug.

• Remove the remote control batteries.

■ Pre-season Inspection

• This inspection is recommended before operating the air conditioner at every season.

• Check if the remote control batteries needed to be replaced.

• Ensure there is no obstruction at all air intake and outlet vents.

• After the start of operation for 15 minutes, it is normal if the temperature differences between air intake and outlet vents at indoor unit is:-

Operation Temperature

Cooling

Heating 14°C

pH7) only.

≃

8°C

Hints

● Clean the ﬁ lter regularly as dirty ﬁ lters will cause unpuriﬁ ed air, low cooling or heating capacity, unpleasant smells and higher

energy consumption.

● The unit will become dirty and the performance of the unit will decrease after used for several seasons. Please consult an

authorized dealer to perform seasonal inspections in addition to regular cleaning.

● This air conditioner is equipped with a built-in surge protective device. However, in order to further protect your air conditioner

from being damaged by abnormally strong lightning activity, you may switch off the power supply.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

10 Installation Instructions

Required tools for Installation Works

1. Philips screw driver 5. Spanner 9. Gas leak detector 13. Multimeter

2. Level gauge 6. Pipe cutter 10. Measuring tape 14. Torque wrench

3. Electric drill, hole core drill (ø70 mm)

4. Hexagonal wrench (4 mm) 8. Knife 12. Megameter 16. Gauge manifold

7. Reamer 11. Thermometer 15. Vacuum pump

10.1. Safety Precautions

•

Read the following “SAFET Y 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.

This indication shows the possibility of causing death or serious injury.

18 N.m (1.8 kgf.m) 42 N.m (4.2 kgf.m) 55 N.m (5.5 kgf.m)

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 background white denotes item that is PROHIBITE D from doing.

•

Carry out test running 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.

1. Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage, electrical shock or fire.

2. Install according to this installation instruction strictly. If installation is defective, it will cause water leakage, electrical shock or fire.

3. Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or electrical shock.

4. 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.

5. 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.

6. Use the specified cable (1.5 mm2) and connect tightly for indoor/outdoor connection. Connect tightly and clamp the cable so that no external force will be acted on the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection.

7. 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 at connection point of terminal, fire or electrical shock.

8. When carrying out piping connection, take care not to let air substances other than the specified refrigerant go into refrigeration cycle. Otherwise, it will cause lower capacity, abnormal high pressure in the refrigeration cycle, explosion and injury.

9. Do not damage or use unspecified power supply cord. Otherwise, it will cause fire or electrical shock.

10. Do not modify the length of the power supply cord or use of the extension cord, and do not share the single outlet with other electrical appliances. Otherwise, it will cause fire or electrical shock.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

1. The equipment must be earthed. It may cause electrical shock if grounding is not perfect.

2. 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.

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

1. Selection of the installation location. Select an installation location which is rigid and strong enough to support or hold the unit, and select a location for easy maintenance.

2. Power supply connection to the room air conditioner. Connect the power supply cord of the room air conditioner to the mains using one of the following method. Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency. In some countries, permanent connection of this room air conditioner to the power supply is prohibited.

1. Power supply connection to the receptacle using a power plug.

Use an approved 15A/16A power plug with earth pin for the connection to the socket.

2. Power supply connection to a circuit breaker for the permanent connection. Use an approved 16A circuit breaker for the permanent

connection. It must be a double pole switch with a minimum 3 mm contact gap.

3. Do not release refrigerant. Do not release refrigerant during piping work for installation, reinstallation and during repairing a refrigeration parts. Take care of the liquid refrigerant, it may cause frostbite.

4. Installation work. It may need two people to carry out the installation work.

5. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.

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Attached accessories

Indoor/Outdoor Unit Installation Diagram

Applicable piping kit

CZ-3F5, 7BP (XE9DK)

CZ-4F5, 7, 10BP (XE12DK)

SELECT THE BEST LOCATION

INDOOR UNIT

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.

Recommended installation height for indoor unit shall be

•

at least 2.3 m.

OUTDOOR UNIT

If an awning is built over the unit to prevent direct

•

sunlight or rain, be careful that heat radiation from the condenser is not obstructed.

There should not be any animal or plant which could be

•

affected by hot air discharged.

Keep the spaces indicate d by arrows from wall, ceiling,

•

fence or other obstacles.

Do not place any obstacles which may cause a short

•

circuit of the discharged air.

If piping length is over the common length, additional

•

refrigerant should be added as shown in the table.

This illustration is for explanation purposes only.

•

The indoor unit will actually face a different way.

10.2. Indoor Unit

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10.2.1. SELECT THE BEST LOCATION (Refer to “Select the best location” section)

10.2.2. HOW TO FIX INSTALLATION PLATE

The mounting wall is strong and solid enough to prevent it from the vibration.

10.2.3. 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 15 mm from the wall.

Caution

When the wall is hollow, please be sure to use the sleeve for tube ass’y to prevent dangers caused by mice biting the connecting cable.

4. Finish by sealing the sleeve with putty or caulking

compound at the final stage.

The centre of installation plate should be at more than 450 mm at right and left of the wall.

The distance from installation plate edge to ceiling should more than 67 mm.

From installation plate left edge to unit’s left side is 47 mm.

From installation plate right edge to unit’s right is 73 mm.

For left side piping, piping connection for liquid should be about 14 mm from this line.

For left side piping, piping connection for gas should be about 56 mm from this line.

For left side piping, piping connecting cable should be about 785 mm from this line.

1. Mount the installation plate on the wall with 5 screws or more. (If mounting the unit on the concrete wall, consider using anchor bolts.)

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 ø70 mm hole-core drill.

Line according to the arrows marked on the lower left

•

and right side of the installation plate. The meeting point of the extended line is the centre of the hole. Another method is by putting measuring tape at position as shown in the diagram above. The hole centre is obtained by measuring the distance namely 150 mm and 125 mm for left and right hole respectively.

Drill the piping hole at either the right or the left and the

•

hole should be slightly slanted to the outdoor side.

10.2.4. INDOOR UNIT INSTALLATION

For the right rear piping

For the right and right bottom piping

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For the embedded piping

(This can be used for left rear piping & left bottom piping also.)

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10.2.5. CONNECT THE CABLE TO THE INDOOR UNIT

1. The inside and outside connecting cable can be connected

without removing the front grille.

2. Connecting cable between indoor unit and outdoor unit

shall be approved polychloroprene sheathed 4 (XE9DK, XE12DK) × 1.5 mm 57 or heavier cord.

Ensure the color of wires of outdoor unit and the

•

terminal Nos. are the same to the indoor’s respectively.

Earth lead wire shall be longer than the other lead wires

•

as shown in the figure for the electrical safety in case of the slipping out of the cord from the anchorage.

Secure the cable onto the control board with the holder

•

(clamper).

flexible cord, type designation 245 IEC

INSTALLATION OF AIR PURIFYING FILTER

1. Open the front panel.

2. Remove the air filters.

3. Put Super Alleru-Buster filter into place as shown in

illustration below.

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HOW TO TAKE OUT FRONT GRILLE

Please follow the steps below to take out front grille if necessary such as when servicing.

1. Set the vertical airflow direction louver to the horizontal position.

2. Slide down the two caps on the front grille as shown in the illustration below, and then remove the two mounting screws.

3. Pull the lower section of the front grille towards you to remove the front grille.

Caution

When reinstalling the front grille, first set the vertical airflow direction louver to the horizontal position and then carry out above steps 2 - 3 in the reverse order.

AUTO SWITCH OPERATION

The below operations will be performed by pressing the “AUTO” switch.

1. AUTO OPERA TION MODE

The Auto operation will be activated immediately once the Auto Switch is pressed.

2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE)

The Test Run operation will be activated if the Auto Switch is pressed continuously for more than 5 sec. to below 10 sec.. A “pep” sound will occur at the fifth sec., in order to identify the starting of Test Run operation.

3. HEATING TRIAL OPERATION

Press the AUTO switch continuously for more than 8 sec. to below 11 sec. and release when a “pep pep” sound is occurred at eight sec.. (However, a “pep” sound is occurred at fifth sec..)

4. REMOTE CONTROLLER RECEIVING SOUND ON/OFF

The ON/OFF of Remote Controller receiving sound can be change over by followin g steps:

a. Press “AUTO” Switch continuously for more than 16

sec. to below 21 sec. A :pep”, “pep”, “pep” sound will occur at the sixteenth sec..

b. Press the “Check” button once to select remote control.

A “pep” sound will occur.

c. Press the “AUTO” switch once to select remote control

receiveing sound ON/OFF. A “pep” sound indicates receiving sound ON, and a “pep” sound indicates receiving sound OFF.

10.3. Outdoor Unit

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

10.3.1. SELECT THE BEST LOCATION (Refer to “Select the best location” section)

10.3.2. INSTALL THE OUTDOOR UNIT

After selecting the best location, start installation according

•

to Indoor/Outdoor Unit Installation Diagram.

1. Fix the unit on concrete or rigid frame firmly and horizontally

by bolt nut. (ø10 mm).

2. When installing at roof, please consider strong wind and

earthquake. Please fasten the installation stand firmly with bolt or nails.

10.3.3. CONNECTING THE PIPING

Connecting The Piping To Indoor Unit

Please make flare after inserting flare nut (locate at joint portion of tube assembly) onto the copper pipe. (In case of using long piping)

Connect the piping

Align the center of piping and sufficiently tighten the flare

•

nut with fingers.

Further tighten the flare nut with torque wrench in specified

•

torque as stated in the table.

MODEL Piping size (Torque)

Gas Liquid XE9DK 3/8” (42 N.m) 1/4” (18 N.m) XE12DK 1/2” (55 N.m) 1/4” (18 N.m)

Connecting The Piping To Outdoor Unit

Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (located at valve) onto the copper pipe.

Align center of piping to valves and then tighten with torque wrench to the specified torque as stated in the table.

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 is 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.

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10.3.4. EVACUATION OF THE EQUIPMENT (FOR EUROPE & OCEANIA DESTINATION)

WHEN INSTALLING AN AIR CONDITIONAL, BE SURE TO EVACUTE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure.

1. Connect a charging hose with a push pin to the Low and High side of a charging set and the service port of the 3-way valve.

Be sure to connect the end of the charging hose with the push pin to the service port.

•

2. Connect the center hose of the charging set to a vacuumpump with check valve, or vacuum pump and vacuum pump adaptor.

3. Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves form 0 cmHg (0 MPa) to 76cm Hg (-0.1 MPa). Then evacuate the air approcimately ten minutes.

4. Close the Low side valve of the charging set the turn off the vacuum pump. Make sure that the needle in the gauge does not move after approximately five minutes.

Note: BE SURE TO FOLLOW THIS PROCEDURE INORDER TO AVOID REFRIGERANT GAS LEAKAGE.

5. Disconnect the charging hose from vacuum pump and from the service port of the 3-way valve.

6. Tighten the service port caps of the 3-way valve at a torque of 18 N.m with a torque wrench.

7. Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to “OPEN” using a hexagonal wrench (4 mm).

8. Mount valve caps onto the 2-way valve and the 3-way valve.

Be sure to check for gas leakage.

•

Caution

If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step 3 above take the following measure:

•

If the leag stops when the piping connections are tightened further, continue working form step 3.

•

If the leak does not stop when the connections are retightened, repair the location of leak.

•

Do not release refrigerant during piping work for installation and reinstallation. Take care of the liquid refrigerant, it may cause

•

frostbite.

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10.3.5. CONNECT THE CABLE TO THE OUTDOOR UNIT

1. Remove the control board cover from the unit by loosening the screw.

2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 (XE9DK, XE12DK) × 1.5

flexible cord, type designation 245 IEC 57 or heavier cord.

3. Secure the cable onto the control board with the holder (clamper).

4. Attach the control board cover back to the original position with the screw.

10.3.6. PIPE INSULATION

1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrap the insulated piping end to prevent water from going inside the piping.

2. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by using POLY-E FOAM with thickness 6 mm or above.

DISPOSAL OF OUTDOOR UNIT DRAIN WATER

If a drain elbow is used, the unit should be placed on a

•

stand which is taller than 3 cm.

If the unit is used in an area where temperature falls below

•

0°C for 2 or 3 days in succession, it is recommended not to use a drain elbow, fot the drain water freezes and the fan will not rotate.

CHECK THE DRAINAGE

Open front panel and remove air filters.

•

(Drainage checking can be carried out without removing the front grille.)

Pour a glass of water into the drain traystyrofoam.

•

Ensure that water flows out from drain hose of the indoor

•

unit.

Measure the temperature of the intake and discharge air.

•

Ensure the difference between the intake temperature and

•

the discharge is more than 8°C.

CHECK ITEMS

Is there any gas leakage at flare nut connection?

Has the heat insulation been carried out at flare nut connection?

Is the connecting cable being fixed to terminal board firmly?

Is the connecting cable being clamped firmly?

Is the drainage OK? (Refer to “Check the drainage” section)

Is the earth wire connection properly done?

EVALUATION OF THE PERFORMANCE

Operate the unit at cooling operation mode for fifteen

•

minutes or more.

Is the indoor unit properly hooked to the installation plate?

Is the power supply voltage complied with rated value?

Is there any abnormal sound?

Is the cooling operation normal?

Is the thermostat operation normal?

Is the remote control’s LCD operation normal?

Is the air purifying filter installed?

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

10.3.7. OXYGEN TUBE CONNECTION

Precautions during oxygen tube connec tion

1. Tube allowable length and height difference is the same as pipes.

2. Tube should be pulled without folding it along the path of refrigerant pipe, providing sufficient allowance and cut to length.

If there is no allowance, tube length will contract when

•

temperature changes and it may cause trouble.

On the other hand, tube length used without cutting and

•

in the form of loop

3. When the tube is passed throught the pipe hole, it should not form the inner wall of the pipe bends.

The tube may be pressed to the corner of the hold and crushed.

4. Cutting of tube should be done with cutter or knife,

suface should be straight and even

Finishing should be done and leave no scratches behind .

5. Tube end’s last 15 mm (the section to be inserted to the joint during connection) should be free from any damages.

6. Take note that the inside of tube should be

stones, dirt, dust, and other impurities

1. Oxygen tube connection

too should be avoided.

cutting

free from

complete. To make sure that it’s done properly, pull out lightly to check if can be removed.

2. Connection check

Do connection check after normal running of

•

cooling/heating has been confirmed during trial operation.

(You cannot do proper oxygen tube connection check before normal running has been confirmed during trial operation).

Operate according to the sequence listed below, and check

•

tube connection.

1. Open the cap (1) to check.

2. Put your ear close to the window to listen if there is oxygen flowing out (a shuuuu sound).

If it’s hard to hear, push the cap (2) in the window with your finger, then release your finger. The sound of flow will be louder and easier to hear.

(If there is no air release, the cause may be tube collapse, or the insert at join section not proper. Check again and make correction if found not properly done.)

3. After checking,

cap (1) and return to its original position

(If it is not returned to its position, it may cause abnormal noise.)

Finishing should be carried out for pipe and drain hose.

•

Refer to 10.3.6 Pipe insulation of outdoor unit.

•

make sure that you push down the

3. Finishing

Insert oxygen tube

•

fully reaches its limit (about 15 mm)

If the insert does not fully reach the limit, oxygen may leak

•

out from the joint causing abnormal noise.

In both indoor and outdoor unit, the tube inserted will be

•

locked inside the joint by the stopper, and the job is

into the joint section of indoor unit till

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11 Installation and Servicing Air Conditioner Using R410A

11.1. Outline

11.1.1. About R410A Refrigerant

1. Converting air conditioners to R410A Since it was declared in1974 that chlorofluorocarbons (CFC), hydro chlorofluorocarbons (HCFC) and other substances pose a destructive danger to the ozone layer in the earth’s upper stratosphere (20 to 40 km above the earth), measures have been taken around the world to prevent this destruction. The R22 refrigerant which has conventionally been used in ACs is an HCFC refrigerant and, therefore, possesses this ozonedestroying potential. International regulations (the Montreal Protocol on Ozone-Damaging Substances) and the domestic laws of various countries call for the early substitution of R22 by a refrigerant which will not harm the ozone layer.

In ACs, the HFC refrigerant which has become the mainstream alternative is called R410A. Compared with R22, the

•

pressure of R410A is approximately 1.6 times as high at the same refrigerant temperature, but the energy efficien cy is about the same. Consisting of hydrogen (H), fluorine (F) and carbon (C), R410A is an HFC refrigerant. Another typical HFC refrigerant is R407C. While the energy efficiency of R407C is somewhat inferior to that of R410A, it offers the advantage of having pressure characteristics which are about the same as those of R22, and is used mainly in packaged ACs.

2. The characteristics of HFC (R410A) refrigerants

a. Chemical characteristics

The chemical characteristics of R410A are similar to those of R22 in that both are chemically stable, non-flammable refrigerants with low toxicity. However, just like R22, the specific gravity of R410A gas is heavier than that of air. Because of this, it can cause an oxygen deficiency if it leaks into a closed room since it collects in the lower area of the room. It also generates toxic gas when it is directly exposed to a flame, so it must be used in a well ventilated environment where it will not collect.

Table 1 Physical comparison of R410A and R22

Composition (wt%) R32/R125 (50/50) R22 (100) Boiling point (°C) -51.4 -40.8 Vaporizing pressure (25°C) 1.56 Mpa (15.9 kgf/cm2) 0.94 Mpa (9.6 kgf/cm2) Saturated vapor density 64.0 kg/m Flammability Non-flammable Non-flammable Ozone-destroying point (ODP) 0 0.055 Global-warming point (GWP) 1730 1700

R410A R22

44.4 kg/m

b. Compositional change (pseudo-azeotropic characteristics)

R410A is a pseudo-azeotropic mixture comprising the two components R32 and R125. Multi-component refrigerants with these chemical characteristics exhibit little compositional change even from phase changes due to vaporization (or condensation), which means that there is little change in the circulating refrigerant composition even when the refrigerant leaks from the gaseous section of the piping. Accordingly, R410A can be handled in almost the same manner as the single-component refrigerant R22. However, when charging, because there is a slight change in composition between the gas phase and the liquid phase inside a cylinder or other container, charging should basically begin with the liquid side.

c. Pressure characteristics

As seen in Table 2, the gas pressure of R410A is approximately 1.6 times as high as that of R22 at the same refrigerant temperature, which means that special R410A tools and materials with high-pressure specifications must be used for all refrigerant piping work and servicing.

Table 2 Comparison of R410A and R22 saturated vapor density

Refrigerant Temperature (°C) R410A R22

-20 0.30 0.14 0 0.70 0.40

20 1.35 0.81 40 2.32 1.43 60 3.73 2.33 65 4.15 2.60

Unit: MPa

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d. R410A refrigerating machine oil

Conventionally, mineral oil or a synthetic oil such as alkylbe nzene has been used for R22 refrigerating machine oil. Because of the poor compatibility between R410A and conventional oils like mineral oil, however, there is a tendency for the refrigerating machine oil to collect in the refrigerating cycle. For this reason, polyester and other synthetic oils which have a high compatibility with R410A are used as refrigerating machine oil. Because of the high hygroscopic property of synthetic oil, more care must be taken in its handling than was necessary with conventional refrigerating machine oils. Also, these synthetic oils will degrade if mixed with mineral oil or alkylbenzene, causing clogging in capillary tubes or compressor malfunction. Do not mix them under any circumstances.

11.1.2. Safety Measures When Installing/Servicing Refrigerant Piping

Cause the gas pressure of R410A is approximately 1.6 times as high as that of R22, a mistake in installation or servicing could result in a major accident. It is essential that you use R410A tools and materials, and that you observe the following precautions to ensure safety.

1. Do not use any refrigerant other than R410A in ACs that have been used with R410A.

2. If any refrigerant gas leaks while you are working, ventilate the room. Toxic gas may be generated if refrigerant gas is exposed to a direct flame.

3. When installing or transferring an AC, do not allow any air or substance other than R410A to mix into the refrigeration cycle. If it does, the pressure in the refrigeration cycle can become abnormally high, possibly causing an explosion and/or injury.

4. After finishing the installation, check to make sure there is no refrigerant gas leaking.

5. When installing or transferring an AC, follow the instructions in the installation instructions carefully. Incorrect installation can result in an abnormal refrigeration cycle or water leakage, electric shock, fire, etc.

6. Do not perform any alterations on the AC unit under any circumstances. Have all repair work done by a specialist. Incorrect repairs can result in a water leakage, electric shock, fire, etc.

11.2. Tools For Installing/Servicing Refrigerant Piping

11.2.1. Necessary Tools

In order to prevent an R410A AC from mistakenly being charged with any other refrigerant, the diameter of the 3-way valve service port on the outdoor unit has been changed. Also, to increase its ability to withstand pressure, the opposing dimensions have been changed for the refrigerant pipe flaring size and flare nut. Accordingly, when installing or servicing refrigerant piping, you must have both the R410A and ordinary tools listed below.

Type of work Ordinary tools R410A tools

Flaring Flaring tool (clutch type), pipe cutter,

Bending, connecting pipes Torque wrench (nominal diameter 1/4,

Air purging Vacuum pump. Hexagonal wrench

Gas leak inspection Gas leak inspection fluid or soapy water Electric gas leak detector for HFC

*1) You can use the conventional (R22) flaring tool. If you need to buy a new tool, buy the R410A type.

*2) Use when it is necessary to detect small gas leaks.

For other installation work, you should have the usual tools, such as screwdrivers (+,-), a metal-cutting saw, an electrical drill, a hole core drill (65 or 70 dia.), a tape measure, a level, a thermometer, a clamp meter, an insulation tester, a voltmeter, etc.

Type of work Ordinary tools R410A tools

Refrigerant charging Electronic scale for refrigerant charging.

Brazing (Replacing refrigerating cycle part*1)

Table 3 Tools for installation, transferring or replacement

reamer

3/8,1/2). Fixed spanner (opposing sides 12 mm, 17 mm, 19 mm). Adjustable wrench, Spring bender

(opposing sides 4 mm)

Table 4 Tools for serving

Nitrogen blow set (be sure to use nitrogen blowing for all brazing), and brazing machine

Copper pipe gauge for clearance Adjustment, flaring tool (clutch type)*1)

Manifold gauge, charging hose, vacuum pump adaptor

refrigerant*2)

Refrigerant cylinder. Charging orifice and packing for refrigerant cylinder

*1) Always replace the dryer of the outdoor unit at the same time. The replacement dryer is wrapped in a vacuum pack. Replace it last among the refrigerating cycle parts. Start brazing as soon as you have opened the vacuum pack, and begin the vacuuming operation within 2 hours.

11.2.2. R410A Tools

1. Copper tube gauge for clearance adjustment (used when flaring with the conventional flaring tool (clutch type))

This gauge makes it easy to set the clearance for the

•

copper tube to 1.0-1.5 mm from the clamp bar of the flaring tool.

2. Flaring tool (clutch type)

In the R410A flaring tool, the receiving hole for the

•

clamp bar is enlarged so the clearance from the clamp bar can be set to 0-0.5 mm, and the spring inside the tool is strengthened to increase the strength of the pipeexpanding torque. This flaring tools can also be used with R22 piping, so we recommend that you select it if you are buying a new flaring tool.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

Fig. 1 Copper tube gauge for clearance adjustment

3. Torque wrenches

Table 5

Conventional wrenches R410A wrenches For 1/4 (opposite side x torque) 17 mm x 18 N.m (180 kgf.cm) 17 mm x 18 N.m (180 kgf.cm) For 3/8 (opposite side x torque) 22 mm x 42 N.m (420 kgf.cm) 22 mm x 42 N.m (420 kgf.cm) For 1/2 (opposite side x torque) 24 mm x 55 N.m (550 kgf.cm) 26 mm x 55 N.m (550 kgf.cm)

4. Manifold gauge

Because the pressure is higher for the R410A type, the conventional type cannot be used.

•

Table 6 Difference between R410A and conventional high/low-pressure gauges

High-pressure gauge (red) -76 cmHg - 35 kgf/cm

Low-pressure gauge (blue) -76 cmHg - 17 kgf/cm

Conventional gauges R410A gauges

Fig. 2 Flaring tool (clutch type)

Fig. 3 Torque wrenches

-0.1 - 5.3 Mpa -76 cmHg - 53 kgf/cm

-0.1 - 3.8 Mpa -76 cmHg - 38 kgf/cm

The shape of the manifold ports has been changed to prevent the possibility of mistakenly charging with another type of

•

refrigerant.

Table 7 Difference between R410A and conventional manifold port size

Port size 7/16 UNF 20 threads 1/2 UNF 20 threads

Conventional gauges R410A gauges

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

5. Charging hose

The pressure resistance of the charging hose has been

•

raised to match the higher pressure of R410A. The hose material has also been changed to suit HFC use, and the size of the fitting has been changed to match the manifold ports.

Pressure resistance

Material NBR rubber HNBR rubber Nylon coating inside

Working pressure 3.4 MPa (35 kgf/cm3) 5.1 MPa (52 kgf/cm3) Bursting pressure 17.2 MPa (175 kgf/cm3) 27.4 MPa (280 kgf/cm3)

6. Vacuum pump adaptor

When using a vacuum pump for R410A , it is necessary

•

to install an electromagnetic valve to prevent the vacuum pump oil from flowing back into the charging hose. The vacuum pump adaptor is installed for that purpose. If the vacuum pump oil (mineral oil) becomes mixed with R410A, it will damage the unit.

Fig. 4 Manifold gauge charging hose

Table 8 Difference between R410A and conventional charging hoses

Conventional hoses R410A hoses

7. Electric gas leak detector for HFC refrigerant

The leak detector and halide torch that were used with

•

CFC and HCFC cannot be used with R410A (because there is no chlorine in the refrigerant).

The present R134a leak detector can be used, but the

•

detection sensitivity will be lower (setting the sensitivity for R134a at 1, the level for R410A will drop to 0.6).

For detecting small amounts of gas leakage, use the

•

electric gas leak detector for HFC refrigerant. (Detection sensitivity with R410A is about 23 g/year).

Fig. 5 Vacuum pump adaptor

Fig. 6 Electric gas leak detector for HFC refrigerant

8. Electronic scale for refrigerant charging

Because of the high pressure and fast vaporizing speed

•

of R410A, the refrigerant cannot be held in a liquid phase inside the charging cylinder when charging is done using the charging cylinde r method, causing bubbles to form in the measurement scale glass and making it difficult to see the reading. (Naturally, the conventional R22 charging cylinder cannot be used because of the differences in the pressure resistance, scale gradation, connecting port size, etc.)

The electronic scale has been strengthened by using a

•

structure in which the weight detector for the refrigerant cylinder is held by four supports. It is also equipped with two connection ports, one for R22 (7/16 UNF, 20 threads) and one for R410A (1/2 UNF, 20 threads), so it can also be used for conventional refrigerant charging.

There are two types of electronic scales, one for 10-kg

•

cylinders and one for 20-kg cylinde rs. (The 10-kg cylinder is recommended.)

Refrigerant charging is done manually by opening and closing the valve.

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Fig. 7 Electronic scale for refrigerant charging

9. Refrigerant cylinders

The R410A cylinders are labeled with the refrigerant

•

name, and the coating color of the cylinder protector is pink, which is the color stipulated by ARI of the U.S.

Cylinders equipped with a siphon tube are available to

•

allow the cylinder to stand upright for liquid refrigerant charging.

10. Charging orifice and packing for refrigerant cylinde rs

The charging orifice must match the size of the charging

•

hose fitting (1/2 UNF, 20 threads).

The packing must also be made of an HFC-resistant

•

material.

Fig. 8 Refrigerant cylinders

Fig. 9 Charging orifice and packing

11.2.3. R410A Tools Which Are Usable for R22 Models

Table 9 R410A tools which are usable for R22 models

R410A tools Usable for R22 models (1) Copper tube gauge for clearance adjustment OK (2) Flaring tool (clutch type) OK (3) Manifold gauge NG (4) Charging hose NG (5) Vacuum pump adaptor OK (6) Electric gas leak detector for HFC refrigerant NG (7) Electronic scale for refrigerant charging OK (8) Refrigerant cylinder NG (9) Charging orifice and packing for refrigerant cylinder NG

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

11.3. Refrigerant Piping Work

11.3.1. Piping Materials

It is recommended that you use copper and copper alloy jointless pipes with a maximum oil adherence of 40 mg/10m. Do not use pipes that are crushed, deformed, or discolored (especially the inside surface). If these inferior pipes are used, impurities may clog the expansion valves or capillaries. Because the pressure of ACs using R410A is higher than those using R22, it is essential that you select materials that are appropriate for these standards. The thickness of the copper tubing used for R410A is shown in Table 10. Please be aware that tubing with a thickness of only 0.7 mm is also available on the market, but this should never be used.

Soft pipe Thickness (mm)

Nominal diameter Outside diameter (mm) R410A (Reference) R22

1/4 6.35 0.80 0.80 3/8 9.52 0.80 0.80 1/2 12.7 0.80 0.80

11.3.2. Processing and Connecting Piping Materials

When working with refrigerant piping, the following points must be carefully observed: no moisture od dust must be allowed to enter the piping, and there must be no refrigerant leaks.

1. Procedure and precautions for flaring work

a. Cut the pipe

Use a pipe cutter, and cut slowly so the pipe will not be deformed.

b. Remove burrs and clean shavings from the cut surface

If the shape of the pipe end is poor after removing burrs, or if shavings adhere to the flared area, it may lead to refrigerant leaks. To prevent this, turn the cut surface downward and remove burrs, then clean the surface, carefully.

c. Insert the flare nut (be sure to use the same nut that is

used on the AC unit)

d. Flaring

Check the clamp bar and the cleanliness of the copper pipe. Be sure to use the clamp bar to do the flaring with accuracy. Use either an R410A flaring tool, or a conventional flaring tool. Flaring tools come in different sizes, so be sure to check the size before using. When using a conventional flaring tool, use the copper pipe gauge for clearance adjustment, etc., to ensure the correct A dimension (see Fig. 10)

Table 10 Copper tube thickness (mm)

Fig. 10 Flaring dimensions

Fig. 11 Relation between the flare nut structure and flaring tool end

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

Nominal

diameter

1/4 6.35 0.8 0 - 0.5 1.0 - 1.5 1.5 - 2.0 3/8 9.52 0.8 0 - 0.5 1.0 - 1.5 1.5 - 2.0 1/2 12.70 0.8 0 - 0.5 1.0 - 1.5 2.0 - 2.5

Nominal

diameter

1/4 6.35 0.8 0 - 0.5 0.5 - 1.0 1.0 - 1.5 3/8 9.52 0.8 0 - 0.5 0.5 - 1.0 1.0 - 1.5 1/2 12.70 0.8 0 - 0.5 0.5 - 1.0 1.5 - 2.0

Nominal

diameter

1/4 6.35 0.8 9.1 9.2 6.5 13 17 3/8 9.52 0.8 13.2 13.5 9.7 20 22 1/2 12.70 0.8 16.6 16.0 12.9 23 26

Nominal

diameter

1/4 6.35 0.8 9.0 9.2 6.5 13 17 3/8 9.52 0.8 13.0 13.5 9.7 20 22 1/2 12.70 0.8 16.2 16.0 12.9 20 24

Outside

diameter

(mm)

Outside

diameter

(mm)

Outside

diameter (mm)

Outside

diameter (mm)

Table 13 R410A flare and flare nut dimensions Unit: mm

Wall thickness

(mm)

Table 14 R22 flare and flare nut dimensions Unit: mm

Wall thickness

(mm)

Table 11 R410A flaring dimensions

Wall thickness

(mm)

Table 12 R22 flaring dimensions

Wall thickness

(mm)

A +0, -0.4 B

R410A flaring

tool, clutch type

R410A flaring

tool, clutch type

dimension

A (mm)

Conventional flaring tool

Clutch type Wing-nut type

A (mm)

Conventional flaring tool

Clutch type Wing-nut type

dimension

Flare nut

width

Flare nut

width

2. Procedure and precautions for flare connection

a. Check to make sure there is no scratches, dust, etc., on the flare and union.

b. Align the flared surface with the axial center of the union.

c. Use a torque wrench, and tighten to the specified torque. The tightening torque for R410A is the same as the conventional

torque value for R22. Be careful, because if the torque is too weak, it may lead to a gas leak. If it is too strong, it may split the flare nut or make it impossible to remove the flare nut.

Nominal

diameter

1/4 6.35 14 - 18 (140 - 180) 18 (180) 3/8 9.52 33 - 42 (330 -420) 42 (420) 1/2 12.70 55 (550) 55 (550)

Table 15 R410A tightening torque

Outside

diameter (mm)

Tightening torque

N.m (kgf.cm)

Torque wrench tightening torque

N.m (kgf.cm)

11.3.3. Storing and Managing Piping Materials

1. Types of piping and their storage The following is a general classification of the refrigerant pipe materials used for ACs.

Because the gas pressure of R410A is approximately 1.6 times as high as that of R22, copper pipes with the thickness shown in Table 10, and with minimal impurities must be used. Care must also be taken during storage to ensure that pipes are not crushed, deformed, or scratched, and that no dust, moisture or other substance enters the pipe interior. When storing sheathed copper pipes or plain copper pipes, seal the openings by pinching or taping them securely.

2. Makings and management

a. Sheathed copper pipes and copper-element pipes

When using these pipes, check to make sure that they are the stipulated thickness. For flare nuts, be sure to used the same nut that is used on the AC unit.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

b. Copper pipes

Use only copper pipes with the thickness given in table 10, and with minimal impurities. Because the surface of the pipe is exposed, you should take special care, and also take measures such as marking the pipes to make sure they are easily distinguished from other piping materials, to prevent mistaken use.

3. Precautions during refrigerant piping work Take the following precautions on-site when connecting pipes. (Keep in mind that the need to control the entry of moisture and dust is even more important that in conventional piping).

a. Keep the open ends of all pipes sealed until connection with AC equipment is complete.

b. Take special care when doing piping work on rainy days. The entering of moisture will degrade the refrigerating machine oil,

and lead to malfunctions in the equipment.

c. Complete all pipe connections in as short a time as possible. If the pipe must be left standing for a long time after removing

the seal, it must be thoroughly purged with nitrogen, or dried with a vacuum pump.

11.4. Installation, Transferring, Servicing

11.4.1. Inspecting Gas Leaks with a Vacuum Pump for New Installations (Using New

Refrigerant Piping)

1. From the viewpoint of protecting the global environment, please do not release refrigerant into the atmosphere.

a. Connect the projecting side (pin-pushing side) of the charging hose for the manifold gauge to the service port of the 3-way

valve. (1)

b. Fully open the handle Lo of the manifold gauge and run the vacuum pump. (2) (If the needle of the low-pressure gauge

instantly reaches vacuum, re-check step a).)

c. Continue the vacuum process for at least 15 minutes, then check to make sure the low-pressure gauge has reached -0.1

MPa (-76 cmHg). Once the vacuum process has finished, fully close the handle Lo of the manifold gauge and stop the vacuum pump operation, then remove the charging hose that is connected to the vacuum pump adaptor. (Leave the unit in that conditio n for 1-2 minutes, and make sure that the needle of the manifold gauge does not return.) (2) and (3)

d. Turn the valve stem of the 2-way valve 90° counter-clockwise to open it, then, after 10 seconds, close it and inspect for a

gas leak (4)

e. Remove the charging hose from the 3-way valve service port, then open both the 2-way valve and 3-way valve. (1) (4) (Turn

the valve stem in the counter-clockwise direction until it gently makes contact. Do not turn it forcefully).

f. Tighten the service port cap with a torque wrench (18 N.m (1.8 kgf.m)). (5) Then tighten the 2-way valve and 3-way valve

caps with a torque wrench (42 N.m (4.2 kgf.m)) or (55 N.m (5.5 kgf.m)). (6)

g. After attaching each of the caps, inspect for a gas leak around the cap area. (5) (6)

Precautions

Be sure to read the instructions for the vacuum pump,

•

vacuum pump adaptor and manifold gauge prior to use, and follow the instructions carefully.

Make sure that the vacuum pump is filled with oil up to

•

the designated line on the oil gauge.

The gas pressure back flow prevention valve on the

•

charging hose is generally open during use. When you are removing the charging hose from the service port, it will come off more easily if you close this valve.

Fig. 12 Vacuum pump air purging configuration

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

11.4.2. Transferring (Using New Refrigerant Piping)

1. Removing the unit

a. Collecting the refrigerant into the outdoor unit by pumping down

The refrigerant can be collected into the outdoor unit (pumping down) by pressing the TEST RUN button, even when the temperature of the room is low.

Check to make sure that the valve stems of the 2-way valve and 3-way valve have been opened by turning them counter-

•

clockwise. (Remove the valve stem caps and check to see that the valve stems are fully opened position . Always use a hex wrench (with 4-mm opposing sides) to operate the valve stems.)

Press the TEST RUN button on the indoor unit, and allow preliminary operation for 5-6 minutes. (TEST RUN mode)

•

After stopping the operation, let the unit sit for about 3 minutes, then close the 2-way valve by turning the valve stem in

•

the clockwise direction.

Press the TEST RUN button on the indoor unit again, and after 2-3 minutes of operation, turn the valve stem of the 3-

•

way valve quickly in the clockwise direction to close it, then stop the operation.

Tighten the caps of the 2-way valve and 3-way valve to the stipulated torque.

•

Remove the connection pipes (liquid side and gas side).

•

b. Removing the indoor and outdoor units

Disconnect the pipes and connecting electric cables from between the indoor and outdoor units.

•

Put capped flare nuts onto all of the pipe connections of the indoor and outdoor units, to make sure no dust or other

•

foreign matter enters.

Remove the indoor and outdoor units.

•

2. Installing the unit Install the unit using new refrigerant piping. Follow the instructions in section 4.1 to evacuate the pipes connecting the indoor and outdoor units, and the pipes of the indoor unit, and check for gas leaks.

11.4.3. AC Units Replacement (Using Existing Refrigerant Piping)

When replacing an R410A AC unit with another R410A AC unit, you should re-flare the refrigerant piping. Even though the replacement AC unit uses the R410A, problems occur when, for example, either the AC unit maker or the refrigerating machine oil is differen t. When replacing an R22 AC unit with an R410A AC unit, the following checks and cleaning procedures are necessary but are difficult to do because of the chemical characteristics of the refrigerating machine oil (as described in items c) and d) of section

About R410A Refrigerant

1. Piping check Because of the different pressure characteristics of R22 and R410A, the design pressure for the equipment is 1.6 times different. The wall thickness of the piping must comply with that shown in Table 10, but this is not easy to check. Also, even if the thickness is correct, there may be flattened or bent portions midway through the piping due to sharp curves. Buried sections of the piping also cannot be checked.

2. Pipe cleanin g A large quantity of refrigerating machine oil (mineral oil) adheres to existing pipes due to the refrigeration cycle circulation. If the pipes are used just as they are for the R410A cycle, the capacity will be lowered due to the incompatibility of this oil with the R410A, or irregularities may occur in the refrigeration cycle. For this reason, the piping must be thoroughly cleaned, but this is difficult with the present technology.

). In this case, you should use new refrigerant piping rather than the existing piping.

11.4.4. Refrigerant Compatibility (Using R410A Refrigerant in R22 ACs and Vice Versa)

Do not operate an existing R22 AC with the new R410A refrigerant. Doing so would result in improper functioning of the equipment or malfunction, and might lead to a major accident such as an explosion in the refrigeration cycle. Similarly, do not operate an R410A AC with R22 refrigerant. The chemical reaction between the refrigerating machine oil used in R410A ACs and the chlorine that is contained in R22 would cause the refrigerating machine oil to degrade and lead to malfunction.

11.4.5. Recharging Refrigerant During Servicing

When recharging is necessary, insert the specified amount of new refrigerant in accordance with the following procedure.

1. Connect the charging hose to the service port of the outdoor unit.

2. Connect the charging hose to the vacuum pump adaptor. At this time, fully open the 2-way valve and 3-way valve.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

3. Fully open the handle Lo of the manifold gauge, turn on the power of the vacuum pump and continue the vacuum process for at least one hour.

4. Confirm that the low pressure gauge shows a reading of -0.1 Mpa (-76 cmHg), then fully close the handle Lo, and turn off the vacuum pump. Wait for 1-2 minutes, then check to make sure that the needle of the Low pressure gauge has not returned. See Fig. 13 for the remaining steps of this procedure.

5. Set the refrigerant cylinder onto the electronic scale, then connect the hose the cylinder and to the connection port for the electronic scale. (1)(2)

Precaution:

Be sure to set up the cylinde r for liquid charging. If you use a cylinder equipped with a siphon tube, you can charge the liquid without having to turn the cylinder around

6. Remove the charging hose of the manifold gauge from the vacuum pump adaptor, and connect it to the connection port of the electronic scale. (2)(3)

7. Open the valve of the refrigerant cylinder, then open the charging valve slightly and close it. Next, press the check valve of the manifold gauge and purge the air. (2)(4) (Watch the liquid refrigerant closely at this point.)

8. After adjusting the electronic scale to zero, open the charging valve, then open the valve Lo of the manifold gauge and charge with the liquid refrigerant. (2)(5) (Be sure to read the operating instructions for the electronic scale.)

9. If you cannot charge the stipulated amount, operate the unit in the cooling mode while charging a little of the liquid at a time (about 150 g/time as a guideline). If the charging amount is insufficient from one operation, wait about one minute, then use the same procedure to do the liquid charging again.

Precaution:

Never use the gas side to allow a larger amount of liquid refrigerant to be charged while operating the unit.

10. Close the charging valve, and after charging the liquid refrigerant inside the charging hose, fully close the valve Lo of the manifold gauge, and stop the operation of the unit. (2)(5)

11. Quickly remove the charging hose from the service port. (6) If you stop midway through, the refrigerant that is in the cycle will be discharged.

12. After putting on the caps for the service port and operating valve, inspect around the caps for a gas leak. (6)(7)

Fig. 13 Re-charging refrigerant

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

11.4.6. Brazing

As brazing requires sophisticated techniques and experiences, it must be performed by a qualified person. In order to prevent the oxide film from occurring in the pipe interior during brazing, it is effective to proceed with brazing while letting dry nitrogen gas (N

1. Attach a reducing valve to the nitrogen gas cylinde r.

2. Apply a seal onto the clearance between the piping and inserted pipe for the nitrogen gas in order to prevent the nitrogen gas from flowing backward.

3. When the nitrogen gas is flowing, be sure to keep the piping end open.

4. Adjust the flow rate of nitrogen gas so that it is lower than 0.05 m

5. After taking the steps above, keep the nitrogen gas flowing until the piping cools down to a certain extent (i.e. temperature at which pipes are touchable with finger).

6. Completely remove the flux after brazing.

) flow.

/h, or 0.02 MPa (0.2 kgf/cm2) by means of the reducing valve.

Fig. 14 Prevention of Oxidation during Brazing

Cautions during brazing

1. General Caution s

a. The brazing strength should be high as required.

b. After operation, airtightness should be kept under pressurized condition.

c. During brazing do not allow component materials to become damaged due to overheating.

d. The refrigerant pipe work should not become blocked with scale or flux.

e. The brazed part should not restrict the flow in the refrigerant circuit.

f. No corrosion should occur from the brazed part.

2. Prevention of Overheating

Due to heating, the interior and exterior surfaces of treated metal may oxidize. Especially, when the interior of the refrigerant circuit oxidizes due to overheating, scale occurs and stays in the circuit as dust, thus exerting a fatally adverse effect. So, make brazing at adequate brazing temperature and with minimum of heating area.

3. Overheating Protection

In order to prevent components near the brazed part from overheating damage or quality deterioration due to flame or heat, take adequate steps for protection such as (1) by shielding with a metal plate, (2) by using a wet cloth, and (3) by means of heat absorbent.

4. Movement during Brazing

Eliminate all vibration during brazing to protect brazed joints from cracking and breakage.

5. Oxidation Preventative

In order to improve the brazing efficiency, various types of antioxidant are available on the market. However, the constituents of these are widely varied, and some are anticipated to corrode the piping materials, or adversely affect HFC refrigerant, lubricating oil, etc. Exercise care when using an oxidatio n preventive.

11.4.7. Servicing Tips

The drier must also be replaced whenever replacing the refrigerant cycle parts. Replacing the refrigerant cycle parts first before replacing the drier. The drier is supplied in a vacuum pack. Perform brazing immediately after opening the vacuum pack, and then start the vacuum within two hours. In addition, the drier also needs to be replaced when the refrigerant has leaked completely. (Applicable for drier model only.)

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

12 Servicing Information

Caution:

• Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F(30-40°C) higher. Please use

a high temperature soldering 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).

12.1. Troubleshooting

Rated Frequency Operation

During troubleshooting and servicing, rated compressor operating frequency must be obtained in order to check the specification and technical data. Below are the methods used to obtain rated compressor operating specification.

(a) Cooling

(i) Press the Auto button continuously for 5 seconds or less than 8 seconds, the air conditioner starts operation at Cooling rated frequency.

(“beep” will be heard at the 5th second.)

(ii) Short the service terminal (CN-S) of the outdoor printed circuit board. The operation of air conditioner is Cooling rated frequency.

(b) Heating

Press the Auto button continuously for 8 seconds or less than 11 seconds, the air conditioner starts operation at Heating rated frequency. (“beep”“beep” will be heard at the 8th second.)

Troubleshooting Air Conditioner

Refrigeration cycle system

In order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a fan.

The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions, the standard values for them are shown in the table to the right.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

1. Relationship between the condition of the air conditioner and pressure and electric current

Cooling Mode Heating Mode

Condition of the air

conditoner Low Pressure High Pressure Electric current

during operation

Insufficient refrigerant (gas leakage)

Clogged capillary tube or Strainer

Short circuit in the indoor unit

Heat radiation deficiency of the outdoor unit

Low Pressure High Pressure Electric current

during operation

Inefficient compression

•

Carry on the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started.

12.2. Breakdown Self Diagnosis Function

Once abnormality detected during operation, the unit will immediately stop its operation (Timer LED is blinking) and maximum of three error codes (abnormality) will be saved in memory. The abnormality of the operation can be identifie d through the below breakdown diagnosis method:

•

Press “CHECK” button at remote controller continuously for more than five seconds to turn on the diagnosis mode, “H11” will be displayed at remote controller.

•

By pressing the TMER “ displayed.

•

If error code displayed matches the error code saved in unit memory (abnormality detected), four “beep” sounds will be heard and Power LED will light on. Otherwise, one “beep” sound is heard.

If “CHECK” button is press again or without any operation for 30 seconds, the diagnosis mode will turn off.

” button once, next error code will be display ed; press “V” button once, previous error code will be

Error Codes Table

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

Diagnosis

display

H11 Indoor / outdoor abnormal

H14 Indoor intake air temperature sensor

H15 Outdoor compressor temperature sensor

H16 Outdoor Current Transformer open

H19 Indoor fan motor merchanism lock — —

H23 Indoor heat exchanger temperature

H26 Ionizer abnormality — —

H27 Outdoor air temperature sensor

H28 Outdoor heat exchanger temperature

H33 Indoor/Outdoor wrong connection — — H97 Outdoor Fan Motor lock abnormality — —

H98 Indoor high pressure protection — —

H99 Indoor heat exchanger anti-freezing

F11 Cooling / Heating cycle changeover

F91 Refrigeration cycle abnormality 2 times occurance

F93 Outdoor compressor abnormal revolution 4 times occurance

F95 Cool high pressure protection 4 times occurance

F96 IPM (power transistor) overheating

F97 Outdoor compressor overheating

F98 Total running current protection 3 times occurance

F99 Outdoor Direct Current (DC) peak

Abnormality / Protection control Abnormality

communication

abnormality

circuit

sensor abnormality

abnormality

sensor abnormality

protection

abnormality

protection

detection

Judgement

> 1 min after starting operation

— —

Continue for 5 sec. —

— —

Continue for 5 sec. O

— —

4 times occurance within 30 minutes

within 20 minutes

— —

4 times occurance within 10 minutes

within 20 minutes

7 times occurance continuously

Indoor fan operation

Emergency

operation

only

(Cooling only)

—

Primary location to verify

• Internal / external cable connections

• Indoor / Outdoor PCB

• Intake air temperature sensor

(defective or disconnected)

• Compressor temperature sensor

(defective or disconnected)

• Outdoor PCB

• IPM (Power transistor) module

• Indoor PCB

• Fan motor

• Heat exchanger temperature sensor

(defective or disconnected)

• Indoor PCB

• Ionizer

• Outdoor temperature sensor

(defective or disconnected)

• Outdoor heat exchanger

temperature sensor (defective or disconnected)

• Indoor/Outdoor supply voltage

• Outdoor PCB

• Outdoor Fan Motor

• Air filter dirty

• Air circulation short circuit

• Insufficient refrigerant

• Air filter dirty

• 4-way valve

• V-coil

• No refrigerant

(3-way valve is closed)

• Outdoor compressor

• Outdoor refrigerant circuit

• Excess refrigerant

• Improper heat radiation

• IPM (Power transistor)

• Insufficient refrigerant

• Compressor

• Excess refrigerant

• Improper heat radiation

• Outdoor PCB

• IPM (Power transistor)

• Compressor

Note:

“O” - Frequency measured and fan speed fixed.

The memory data of error code is erased when the power supply is cut off, or press the Auto Switch until “beep” sound heard following by pressing the “RESET” button at remote controller.

Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error Codes Table) by using remote controller or Auto Switch at indoor unit. However, the remote controller signal receiving sound is changed from one “beep” to four “beep” sounds.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

12.3. Remote Control

Remote Control Reset

•

When the batteries are inserted for the first time, or the batteries are replaced, all the indications will blink and the remote control might not work.

If this happen , remove the cover of the remote control and push the reset point once to clear the memory data.

Changing the wireless remote control transmission

•

code

When there are more than one indoor units installed in the same room, it is possible to set different remote control receiving signal by modifying the jumpers inside remote controller.

12.4. Disassembly Of Parts

12.4.1. Indoor Control Board Removal Procedures

1. Remove the Front Grille

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

Fig. 1

2. Remove the Indoor Control Board

Fig.3

Fig. 2

Fig. 4

Fig. 5

Fig. 6

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

12.4.2. Indoor Electronic Controller Removal Procedures

1. Remove Main Electronic Controller

Fig. 7

2. Remove Power Electronic Controller

Fig. 10

Fig. 8

Fig. 9

Fig. 11

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

12.4.3. Cross Flow Fan and Indoor Fan Motor Removal Procedures

1. Remove Cross Flow Fan

2. Remove the Fan Motor

Fig. 15

Fig. 12

Fig. 13

Fig. 14

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

12.4.4. Outdoor Electronic Controller Removal Procedures

1. Remove the top panel and front panel

Fig. 16

2. Remove the Outdoor Electronic Controller

CAUTION

Due to high voltage, do not touch the terminals in the

•

hatching area during operation and during one minute after switching OFF.

Fig. 17

Fig. 18

Caution! When handling electronic controller, be careful of electrostatic discharge.

Fig. 19

Fig.20

13 Technical Data

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

230V Outdoor Temp. (°C)

Indoor wet bulb temp.

TC SHC IP TC SHC IP TC SHC IP TC SHC IP

30 35 40 46

17.0°C 2.58 1.96 0.64 2.41 1.88 0.69 2.24 1.80 0.74 2.04 1.71 0.80

19.0°C 2.60 0.70

19.5°C 2.83 2.05 0.65 2.65 1.97 0.70 2.46 1.89 0.75 2.24 1.80 0.81

22.0°C 3.09 2.12 0.67 2.88 2.04 0.72 2.68 1.97 0.77 2.44 1.88 0.83

230V Outdoor Temp. (°C)

Indoor wet bulb temp.

TC SHC IP TC SHC IP TC SHC IP TC SHC IP

30 35 40 46

17.0°C 3.42 2.59 0.87 3.20 2.49 0.94 2.97 2.39 1.00 2.70 2.27 1.08

19.0°C 3.45 0.95

19.5°C 3.76 2.72 0.89 3.51 2.61 0.95 3.27 2.51 1.02 2.97 2.39 1.10

22.0°C 4.10 2.82 0.90 3.83 2.71 0.97 3.56 2.61 1.04 3.24 2.49 1.12

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

14 Exploded View (Indoor Unit)

14.1. CS-XE9DKE CS-XE12DKE

Note:

The above exploded view is for the purpose of parts disassembly and replacement.

The non-numbered parts are not kept as standard service parts.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

15 Replacement Parts List (Indoor Unit)

15.1. CS-XE9DKE CS-XE12DKE

REF. NO. PART NAME & DESCRIPTION QTY. CS-XE9DKE CS-XE12DKE REMARKS

1 CHASSY COMPLETE 1 CWD50C1435

2 FAN MOTOR 1 CWA981056

3 CROSS FLOW FAN COMPLETE 1 CWH02C1028

4 BEARING ASS’Y 1 CWH64K007

5 SCREW - CROSS FLOW FAN 1 CWH4580304

6 EVAPORATOR 1 CWB30C1439 CWB30C1438

7 FLARE NUT 1 CWT25086 (1/4”)

8 FLARE NUT 1 CWT251031 (3/8”) CWT251032 (1/2”)

9 INTAKE AIR SENSOR HOLDER 1 CWH32142

10 DISCHARGE GRILLE COMPLETE 1 CWE20C2448

11 VERTICAL VANE 12 CWE241088

12 CONNECTING BAR 1 CWE261035

13 AIR SWING MOTOR 2 CWA98260

14 LEAD WIRE - AIR SWING MOTOR 1 CWA67C3977

15 CAP - DRAIN TRAY 1 CWH52C1001

16 HORIZONTAL VANE 1 CWE241070A

17 BACK COVER CHASSIS 1 CWD932162

18 CONTROL BOARD CASING 1 CWH102103

19 TERMINAL BOARD COMPLETE 1 CWA28C2128

20 POWER SUPPLY CORD 1 CWA20C2208

21 ELECTRONIC CONTROLLER - MAIN 1 CWA73C1594 CWA73C1595 0

22 ELECTRONIC CONTROLLER - P. SUPPLY 1 CWA743304

23 ELECTRONIC CONTROLLER - RECEIVER 1 CWA742724

24 SENSOR COMPLETE 1 CWA50C2122

25 CONTROL BOARD FRONT COVER 1 CWH131090

26 ELECTRONIC CONTROLLER - INDICATOR 1 CWE39C1107

27 LEAD WIRE - AIR SWING MOTOR 1 CWA67C3849

28 INDICATOR HOLDER 1 CWD932338

29 CONTROL BOARD TOP COVER 1 CWH131091

30 REMOTE CONTROL COMPLETE 1 CWA75C2428

31 FRONT GRILLE COMPLETE 1 CWE11C3239

32 INTAKE GRILLE 1 CWE22C1187

33 CONTROL PANEL 1 CWE312421

34 DECORATION BASE (R) 1 CWE351075

35 DECORATION BASE (L) 1 CWE351076

36 GRILLE DOOR 1 CWE141064

37 AIR FILTER 1 CWD001053

38 SCREW - FRONT GRILLE 2 XTN4+16C

39 CAP - FRONT GRILLE 2 CWH521062A

40 DRAIN HOSE 1 CWH851044

41 INSTALLATION PLATE 1 CWH36K1018

42 FRONT PANEL ASS’Y 1 CWE13K1005

43 BAG COMPLETE - INSTALLATION SCREW 1 CWH82C067

44 SUPER ALLERU-BUSTER FILTER 1 CWD00C1132

46 FULCRUM 1 CWH621013

47 ELECTRONIC CONTROLLER - IONIZER 1 CWA743099

48 CASING - IONIZER 1 CWD932228

49 ION GENERATOR 1 CWH94C0001

50 AIR FILTER 1 CWD001054

51 BOX SHAPED PIECE COMPLETE 1 CWD76C1027

← ← ← ← ←

←

← ← ← ← ← ← ← ← ← ← ← ←

← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ←

(Note)

All parts are supplied from PHAAM, Malaysia (Vendor Code: 061).

•

“O” marked parts are recommended to be kept in stock.

•

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

16 Exploded View (Outdoor Unit)

16.1. CU-XE9DKE CU-XE12DKE

Note:

The above exploded view is for the purpose of parts disassembly and replacement.

The non-numbered parts are not kept as standard service parts.

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

17 Replacement Parts List (Outdoor Unit)

17.1. CU-XE9DKE CU-XE12DKE

REF NO. DESCRIPTION & NAME QTY. CU-XE9DKE CU-XE12DKE REMARKS

1 CHASSY ASSY 1 CWD50K2073

2 ANTI-VIBRATION BUSHING 3 CWH50077

3 COMPRESSOR 1 5CS102XEC

4 NUT-COMPRESSOR MOUNT 3 CWH56000

5 SOUND PROOF MATERIAL 1 CWG302242

6 FAN MOTOR BRACKET 1 CWD541030

7 FAN MOTOR 1 CWA951321 CWA951309 O

8 SCREW - FAN MOTOR BRACKET 2 CWH551060

9 SCREW - FAN MOTOR MOUNT 4 CWH55406

10 PROPELLER FAN ASSY 1 CWH03K1006

11 NUT - PROPELLER FAN 1 CWH56053

12 CONDENSER 1 CWB32C1661 CWB32C1599

13 TUBE ASS’Y (CAPILLARY TUBE) 1 CWT01C3123 CWT01C3122

14 HOLDER-COUPLING 1 CWH351023

15 3 WAYS VALVE (GAS) 1 CWB011353 CWB011332 O

16 4 WAYS VALVE 1 CWB001011

17 TUBE ASS’Y (STRAINER) 1 CWT023220

18 2 WAYS VALVE (LIQUID) 1 CWB021285

19 DRYER 1 CWB101017

20 V-COIL COMPLETE 1 CWA43C2072

21 REACTOR 1 CWA421050 -

22 SENSOR COMPLETE 1 CWA50C2115

23 CONTROL BOARD CASING (SIDE) 1 CWH102122

24 TERMINAL BOARD ASSY 1 CWA28K1036

26 CONTROL BOARD CASING (BOTTOM) 1 CWH102114

27 CONTROL BOARD CASING (TOP) 1 CWH102115

28 ELECTRONIC CONTROLLER - MAIN 1 CWA73C1596R CWA73C1597R 0

29 CONTROL BOARD COVER (TOP) 1 CWH131104

30 SENSOR COMPLETE 1 CWA50C2066

31 2-WAY VALVE COMPLETE (OXYGEN PUMP) 1 CWB02C1008

32 TERMINAL COVER 1 CWH171001

33 NUT-TERMINAL COVER 1 CWH7080300

34 CABINET SIDE PLATE CO. 1 CWE04C1036

35 CABINET SIDE PLATE (LEFT) 1 CWE041031A

36 HANDLE 1 CWE161010

37 WIRE NET 1 CWD041053A CWD041054A

38 CABINET FRONT PLATE CO. 1 CWE06C1039

39 CABINET TOP PLATE 1 CWE031014A

40 CONTROL BOARD COVER 1 CWH131110

41 CONTROL BOARD COVER CO. 1 CWH13C1064

42 OPERATING INSTRUCTION (ENG., FRA., NED. & DEU.) 1 CWF564740

43 INSTALLATION INSTRUCTION (ENG., FRA., ESP. & DEU.) 1 CWF612771

44 L-TUBE 1 CWH5850080

45 INSTALLATION INSTRUCTION (ITA., NED., POR. & GRE.) 1 CWF612772

46 INSTALLATION INSTRUCTION (RUS.) 1 CWF612773

47 OPERATION INSTRUCTION (ENG., ITA., POR. & ESP.) 1 CWF564741

48 OPERATION INSTRUCTION (ENG., BUL., GRE. & RUS.) 1 - -

49 CAPACITOR - VACUUM PUMP (1.2µF, 440 VAC) 1 DS441125BLQA

50 FLEXIBLE PIPE COMPLETE 1 CWH85C1021

51 VACUUM PUMP 1 CWB532034

52 FILTER - OXYGEN GENERATOR 1 CWD071010

53 FLEXIBLE PIPE COMPLETE 1 CWH851087

54 TUBE CONNECTOR COMPLETE 1 CWT29C1021

55 FLEXIBLE PIPE COMPLETE 1 CWH85C1027 CWH85C1013

56 SOUND PROOF BOARD 1 CWH151071

57 PACKING-L TUBE 1 CWB81012

58 FLARE NUT 1 CWT25086 (1/4”)

59 FLARE NUT 1 CWT25087 (3/8”) CWT25096 (1/2”)

60 INSTALLATION INSTRUCTION OXYGEN TUBE 1 CWF612774

61 INSTALLATION INSTRUCTION OXYGEN TUBE 1 CWF612775

62 FUSE CAP TERMINAL 1 K5D203BBA002

63 FUSE HOLDER 1 K3GB1PH00016

← ← ← ← ← ←

← ← ← ←

←

← ← ← ← ←

← ← ← ← ← ← ← ←

← ← ← ← ← ← ← ← ← ←

← ← ← ← ← ←

← ← ←

← ← ← ←

(Note)

All parts are supplied from PHAAM, Malaysia (Vendor Code: 061).

•

“O” marked parts are recommended to be kept in stock.

•

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

18 Electronic Circuit Diagram

• CS-XE9DK CS-XE12DK

SCHEMATIC DIAGRAM 1/3

TO OUTDOOR

DISPLAY

TEMPERATURE

FUSE

POWER SUPPLY

WHT AC5

WHT AC3

C29

FG1

FG2

C30

AC4

AC6

AC2

AC1

CN-HA

4 3 2 1

RY-PWR

C31

654321

100

16V

C6 47

25V

0.01

R20 10k

7 1098

330

1000p

CN-MAIN

PH10

(WHT)

100

RY-PWR

R17 1k

BZ1 2KHz

R21 1k

R4 20k

0.1

R14 510

611

IC2

R1 43

1/2W

R2 43

1/2W

R5 20k

TD62003AF

IC2

16 15 14 13 10

20k

1 2 3 4 7

R8 5.1k

100

0.022

IC2

POWER

TIMER

OXYGEN

QUIET

C10

R19

AUTO

SW101

D101 D102

D104

D105

D106

ION

CN-DISP1

CN-DISP

C20

0.01

10k

R18 1k

R51 180 R49 270 R46 220

R45 270

R42 180

C15

C16C17

BUSY

R33

10k

RST

IC3

BR9080F

10k

R34

R35

R36

10k

SCHEMATIC DIAGRAM 2/3

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

P47

P45

P46

P50

P51

P52

P53

R30

6.2k

P54

P55

P56

P57

Vss0

Vdd0

P30

P31

P32

P33

TXD2

RXD2

R38

6.2k

OXYGEN LED

QUIET LED

ION LED

OPERATION LED

TIMER LED

TRANSMISSION

DATA RECEPTION

RXD

SI1

P36

DATA

S01

P44

SCK1

P43

RXD0

P42

A52D0076G526

INTAKE AIR TEMP

P25

TXD0

C12

0.01

P40

P41

IC01

PIPE TEMP

TEST

GROUND

Vdd1

C13

0.01

P67

BUZZER

Avss

R12 1k

P66

FAN MOTOR

ON/OFF 15V

P17

26252423222120191817

R54 10k

R26 10k

P64

P65

POWER RELAY

AUTO OPERATION

REMOTE CONTROL

P15

P16

R31 10k

C4 1000p

P74

BUZ

50/60Hz

DETECTION

FAN MOTOR

REVOLUTION

DETECTION

8 MHz

OSC

RESET

POWER

ANI3

P14

30292827

R13 20k

P73

ANI2

R41 10k

P72

TOD0

INTP3

INTP2

INTP1

INTP0

Vss1

IC(VPP)

Reset

AVref

ANI0

ANI1

P71

XT1

XT2

P80

R27 1k

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

RECEIVER

IC4

22k

1 2 3

16 15 14 13 12 11 10

C18

CN-RCV

1 2 3

IC5

TD62003AF

1 2 3 4 5 6 7

IC6

TD62003AF

(MX-3)

C101 22 F 10V

(PH5)

CN-STM1

5 4 3 2 1

(PH5)

CN-STM2

11 10

CN-ION

4 3 2 1

CN-TH

1 2 3 4

CN-RCV

R15 1k

C14 0.01

1 2 3 4 5 6 7

R16 5.1k

C21

R55 10k

R23 20k

X01

R37

150k

8 MHz (15pF x 2) CSTS0800MG03

IC-PST600DMT

R32 100k

C19

2.2 50V

C11

R29

10k

R28 1k

TEST

R22

10 50V

15k

10 50V

R101 1k

IC101

1 2 3

5 4 3 2 1

VERTICAL

5 4 3 2 1

HORIZONTAL

AIR TEMP. SENSOR (15k 3950)

PIPE TEMP. SENSOR (20k 3950)

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

SCHEMATIC DIAGRAM 3/3

ELECTRONIC CONTROL UNIT

CN001

CN002

1 2 3 4 5 6

FAN MOTOR

CN002

CN101

F001

Z001

9 8 7 6 5 4 3

2 1

1 2 3 4 5 6 7

1 2 3 4 5

R023

R024

R032

D007 R030

R114

R116

R118

R117

R053

C014

R115

C002

R052

R051

R050

R048

Z002

C016

Q102

PC001

PC002

C003

L001

C004

R056

R046

L002

C015

R033

R034

IC001

C017

R054

R002

R001

ZD005

C005

TH001 TH002

R003

R004

R005

R007 R006

D003

R016

R031

R017

C007

R013

Q005

Q006

R055

R012

R014

C009

ZD002

ZD003

C010

C018C008

D006

D014

R008

PC003

D002

R058 R059 R060

R057

Q003

ZD006 ZD007

DB004

PC004

feedback

Q004

R048

D013

C012

R020

R026

R027

R018

ZD001

R047

D005

Q002

R015

R025

ZD004

C011

R019

R028

C006

R021

R010R009

R011

R029

10k

T02

549

C013

PC005

Q001

4.7k

D101

R113

PC006

R112

R105

L101

C103

ZD101

C016

IC101

C105

EH-4P

R101

R102

C07

-4.2k

GND

CN2

CN3

D101

D06

D05

R10

T01

D102

C101

R012

F01

CH1

VIN

GND

ERR

R02

R16

C02 C01

Q01

R03

Q02

C03

C08

R04

R05

D02

ZD01

D01

Q04

Q05

D03

R13

R14

R15

R09

ZD02

C05

C010

C09

C06

D04

• CU-XE9DK CU-XE12DK

SCHEMATIC DIAGRAM 1/3

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

TO INDOOR

GRN

GREEN

FG1

R174

ZNR109

R175

R178

R184

R185

R176

R181

R180

ZNR102

ZNR103

FM1

FM2

FM3

HOT1

HOT2

DATA

RED

R104

ZNR107

ZNR108

D1 ERA15-06

C140 2200p 250V

C77

C78

C144

C-FM

J0HBJY000004

R170

R171

13k 2W

PC1

TLP421

CR101

RY - HOT

1.21k

C137

CR102

RY - FM

R140

20k

2SC2412XRTX

R172

5.6k

LF101

47k

R177

AC - BLK

R179

BLACK

R182

R183

AC-WHT

WHITE

FAN MOTOR

4-WAY S VALV E

ERA 15-10

TLP421

R147 10k

C-AC3

BLACK

PTC3

PTC2

PTC1

RY-PWR

C49

JP1

JP2

R64 680

4.7k

10k

DTC143XK

JP3

C48

R61 590 1%

VR1 200

C46 22 100V

JP4

JP11

CT101

ETQ19Z59BZ

R62

C47 220 10V

ZD1 RD30EB1

R66 100k

R31

D17 ERA15-01

ZD3 RD30EB1

C50

ZD2

R65 330k

PC4

REACTOR

GRY2 GRY1

DB102

1/4W 1%

R143

JP12

JP13

R30

PC2

124

1/4W

C-PFC2

BLUE

DC-1

BLACK

BLACK DB -

C-PFC1

BLUE

RY-C

R139

R36

R145

R81

R144

R82

R37

C131

D12

R32

RY-C

C132

R196

R195

R194

JP10

DB +

PC3

PC5

ZD4

RED

DB101

ACC1

YLW

124

C410

10 50V

431

D402

R411

10k

Q403

A55C2411KRTTX

DC-2

BLACK

JP8 JP9

C411

R402

10 50V

1.8k

C403

0.047

RB501V-40

AN1393S

R409

1.8k

R410

100

ECU2:A742693

DTA143XK

25V

IC402

C406

0.82

JP5 JP6 JP7

ACC2 YLW

Q401

C404

0.01

C1C2

R404

49.9k

R412

3.74k

D400

IC401

C407

0.01

R407

15k 1%

DC+1 RED

R401

374k1%

C402

0.01

C412 1000p

D401

R413

15.0k1%

R405 100

C405

0.82

R414

3.73k1%

AN1393S

IC402

C408

0.01

DC+2 RED

R33 232k 1/4W 1%

R197 232k 1/4W 1%

R34 232k 1/4W 1%

R198 232k 1/4W 1%

R35

11.5k 1/4w 1%

R400

R403

51.1k1% Q402

DTA143XK

R406

7.87k 1%

R408

2.74k 1%

R415

3.74k 1%

R416

82.5k 1%

C413 1000p

10k10k

C414 1000p

C401

0.01

4.7k4.7k

C409

0.01

CS-XE9DKE CU-XE 9DKE / CS-XE12DKE CU- XE12DKE

SCHEMATIC DIAGRAM 2/3

RY-HOT

RY-PWR

A52PST600DR

C203

0.047 25V

C206

0.01

C205 10 50V

IC 203

R205 10k

R204 100k

C204

3.3 50V

IC204

R/B

752

Vcc

GND

16 15 14

ETXMJ326X1C

FUSE 101

T101

R148

R199

R149

R200

0.22 630V

C53

D11 ERA22-04

R150

C130

R141

R227 10k

INTP2

DC PEAK

DETECTION

PFC DRIVE

RY-C DRIVE

P54

R229

10k

INTP1

DETECTION

TEST

Vss

DC VOLTAGE

6667

NMI

INTP0

AVRF F

RUNNING CURRENT

COMPRESSOR TEMP

OUTDOOR AIR TEMP

PIPE TEMP

P57

P55

P56

R210

R74 10k

R228

10k

ANI5

ANI6

ANI4

ANI7

AVSS

ANI3

ANI2

ANI1

ANI0

AVDD

Vdd Vss

P37

P36

P35

P34

P33

P32

T01

T00

P67

P66

P65

P64

P60

P61

P62

P63

R211 1k

R238

10k

C37

TEST

0.01

R233

R234 10

C208

1000p

C415

0.01 25V

12 11 10

R203 150k

X201

6.14MHZ

R208 10k

R207 10k

R206 10k

1 2 3 4 5

IC202

TD62003AF

RTP07

RTP06

RTP05

P16

UVW

VUW

T06

COMPRESSOR DRIVE

RXD

DATA RECEPTION

TXD

DATA TRANSMISSION

SCK

RESET

Vdd

6 MHz

OSC

Vss

GROUND

IC(VPP)

RY-HOT DRIVE

P90

RY-PWR DRIVE

P91 P92

RY-FM DRIVE

P93

P94

P95 P40

P41

P42

P43

P44

R231

47k

2XfHZ

RTP04

RTP03

P45

LED1

7374

RTP02

Vss

P07

IC201

A52D4956G131

P46

P47

P50

282726

R63

R239 1k

INTP5

P51

R217

POWER

10k

P52

R235 1k

R236 1k

707172

INTP3

INTP4

REVOLUTION

COMPRESSOR

PFC ABNORMALITY

IPM TEMP SWITCH

SERVICE SWITCH

P53

D201

R215

10k

C201

0.01

R237 10k

R73 10k

C204

0.01

R232

JP201

R209

10k

C209

0.01

51k

R202

100k

R240

R216

10k

D202 R8500V-40

R201 3k

C202

0.01

C210 10 50V

R241

R218

C211

10k

0.01

Q202

4.7k

10k

R213 1k

D9 ERA2204-04

C61

470

25V

D16

D10

ERB83-006

C67

470

25V

C72

470

25V

R223

20K

R71 R72

R128

R102 10

R126

4.7k 1/4W

Q201

10k

4.7k

R214

NJM78M15F

IC2

C62

0.01

(JUMPER)

R101

R103

C69

0.01

R127

R230

C213

0.01

R226

R224

R225

10k

ECU1: A743413

C63

0.01

NJM78M05F

IC1

C212

C113

100 25V

C11

0.01

C70

100

16V

R133

R134

R135

C124

R137

C123

R136

100

Panasonic CS-XE9DKE, CU-XE9DKE, CU-XE12DKE, CS-XE12DKE Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual