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

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

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