Panasonic CS-E15DKDW, CU-E15DKD, CS-E18DKDW, CU-E18DKD, CS-E21DKDS Service Manual

...

Order No. MAC0501021C2

Air Conditioner

CS-E15DKDW CU-E15DKD CS-E18DKDW CU-E18DKD CS-E21DKDS CU-E21DKD

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-E15DKDW CU-E15DKD

3.2. CS-E18DKDW CU-E18DKD

3.3. CS-E21DKDS CU-E21DKD

4 Dimensions

4.1. Indoor Unit & Remote Control

4.2. Outdoor Unit

5 Refrigeration Cycle Diagram 15

6 Block Diagram

7 Wiring Diagram

8 Operation Details

8.1. Basic Function

8.2. Protection Control Features

9 Operating Instructions

9.1. CS-E15DKDW

9.2. CS-E18DKDW CS-E21DKDS

10 Installation And Servicing Air Conditioner Using R410A

10.1. Outline

10.2. Tools For Installing/Servicing Refrigerant Piping

CS-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E18DKD / CS-E21DKD S CU-E21DKD

10.3. Refrigerant Piping Work 64

10.4. Installation, Transferring, Servicing

11 Installation Instructions

11.1. Safety Precautions

11.2. Indoor Unit

11.3. Outdoor Unit

12 Installation Instructions

12.1. Safety Precautions

12.2. Indoor Unit

12.3. Outdoor Unit

13 Servicing Information

13.1. Troubleshooting

13.2. Breakdown Self Diagnosis Function

13.3. Remote Control

13.4. Disassembly of Parts

14 Technical Data

14.1. Operation Characteristics

1 Features

Product

•

Four modes of operation selection

−

Powerful Mode operation

−

Delay ON Timer and OFF Timer

−

Ionizer Mode Operation

−

Quiet Mode Operation

−

Automatic air swing and manual adjusted by Remote

−

Control for horizontal and vertical airflow

Supersonic Air Purifying System with Super Alleru-

−

Buster.

Inactive various harmful airbone elements including allergens, viruses and bacteria. Generated supersonic waves enhance the ability to collect dust and dirt in the air.

100

14.2. Sensible Capacity Chart 103

15 Exploded View (Indoor Unit)

15.1. CS-E15DKDW

15.2. CS-E18DKDW CS-E21DKDS

16 Replacement Parts List (Indoor Unit)

16.1. CS-E15DKDW

16.2. CS-E18DKDW CS-E21DKDS

17 Exploded View (Outdoor Unit)

17.1. CU-E15DKD CU-E18DKD CU-E21DKD

18 Replacement Parts List (Outdoor Unit)

18.1. CU-E15DKD CU-E18DKD CU-E21DKD

19 Electronic Circuit Diagram

19.1. Indoor Unit

19.2. Outdoor Unit

19.3. Remote Control

19.4. Print PatternIndoor Unit Printed Circuit Board

19.5. Print PatternOutdoor Unit Printed Circuit Board View

Serviceability Improvement

•

Removable washable Front Panel

−

Breakdown Self Diagnosis function

−

Environmental Protection

•

Non-ozone depletion substances refrigerant (R410A)

−

Quality Improvement

•

Gas leakage detection

−

Deice operation

−

Auto restart control

−

104

105

106

107

108

109

110

114

120

121

122

2 Functions

2.1. Remote Control

CS-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E18DKD / CS-E21DKD S CU-E21DKD

OFF/ON

MODE

POWERFUL

QUIET

AIR SWING

Operation OFF / ON

Operation Mode Selection

•

HEAT COOL DRY

Automatic Operation Heating Operation Cooling Operation Soft Dry Operation

Powerful Mode Operation

Quiet Mode Operation

Ion Mode Operation

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 Setting

• 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-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E1 8DKD / CS-E2 1DKDS CU- E21DKD

2.2. Indoor Unit

Automatic Operation Switch

• Press for < 5s to run Automatic Operation. (Used when the remote control cannot be used.)

• Press continuously for 5s and < 8s to run Forced Cooling Operation.

• Press continuously for 8s and < 11s to run Forced Heating Operation.

• Press continuously for 11s and < 16s to change different remote controlling setting (4 type of transmission code).

• Press continuously for 16s or < 21s to switch OFF / ON Remote Control Receiving Sound or H14 Abnormality Detection Mode.

Operation Indication Lamps (LED)

•

POWER

•

TIMER

•

QUIET

•

POWERFUL

•

SUPER ALLERU-BUSTER ....

•

(Blue) operation.

(Green) ......

(Orange) .... Lights up in Timer

(Orange) .... Lights up in Quiet

(Orange) ... Lights up when

(Green) ............ Lights up in Ionizer

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

Setting. Blinks in Self Diagnosis Control.

Mode Operation.

Powerful Mode is selected.

Mode Operation. Blinks in Ionizer error.

Lights up in

Four Operation Modes

• Automatic, Heating, Cooling and Soft Dry Operation.

Automatic and 5 Manual Indoor Fan Speeds

Automatic and 5 Manual Vertical Airflow Directions

Automatic and 5 Manual Horizontal Airflow Directions

Powerful Mode

• For quick cooling or heating.

Quiet Mode

• To provide quiet operation.

Ionizer Control

• Ionizer control for generate negative ion in discharge air.

Delay ON Timer and OFF Timer

Automatic Restart Control

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

Microcomputer-controlled Room Temperature Control

2.3. Outdoor Unit

CS-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E1 8DKD / CS-E2 1DKDS CU- E21DKD

Breakdown Self Diagnosis Function

Low Pressure Control (Gas Leakeage Detection)

Indoor Power Relay Control

Anti-Dew Formation Control

Anti Freezing Control

Anti-Cold Draft Control

Hot Start

Intake Air Temperature Control

Time Delay Safety Control

30 seconds Forced Operation

Overload Protection Control

Total Running Current Control

Compressor Overheating Prevention Control

IPM (Power Transistor) Overheating Protection Control

Low Operation Frequency Protection Control

Mininum Operation Frequency Protection Control

High Pressure Control

Deodorizing Control

Deice Operation

Outdoor Air Temperature Control

Standby Control

Deice Operation

CS-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E1 8DKD / CS-E2 1DKDS CU- E21DKD

3 Product Specifications

3.1. CS-E15DKDW CU-E15DKD

Unit CS-E15DKDW CU-E15DKD

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

4.40 (0.90 - 5.00)

3,780 (770 - 4,300)

15,000 (3,070 - 17,100)

5.50 (0.90 - 7.10)

4,730 (770 - 6,110)

18,800 (3,070 - 24,200)

2.4

(5.1)

Single

220 - 230

SIDE VIEW TOP VIEW

Air Volume Lo m3/min (cfm) Cooling; 7.4 (260) —

Heating; 8.8 (310)

Me m3/min (cfm) Cooling; 9.2 (320) —

Heating; 10.3 (360)

Hi m3/min (cfm) Cooling; 11.0 (390) Cooling; 48.5 (1,710)

Heating; 11.8 (420) Heating; 46.8 (1,650)

dB (A) Cooling; High 43, Low 32 Cooling; 46

Heating; High 43, Low 35 Heating; 46

Noise Level

Power level dB Cooling; High 54 Cooling; High 59

Heating; High 54 Heating; High 59

Electrical Data Input Power W Cooling; 1,370 (215 - 1,600)

Heating; 1,570 (245 - 2,250)

Running Current A Cooling; 6.5 - 6.3

Heating; 7.3 - 7.1

EER W/W Cooling; 3.21 (4.19 - 3.13)

BTU/hW Cooling; 10.9 (14.3 - 10.7)

COP W/W Heating; 3.50 (3.67 - 3.16)

BTU/hW Heating; 12.0 (12.5 - 10.8)

Starting Current A 7.3

CS-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E1 8DKD / CS-E2 1DKDS CU- E21DKD

Unit CS-E15DKDW CU-E15DKD

Piping Connection Port (Flare piping)

Pipe Size (Flare piping)

Drain Hose

Power Cord Length Number of core-wire

Dimensions Height inch (mm) 11 - 1/32 (280) 29 - 17/32 (750)

Net Weight lb (kg) 20 (9) 106 (48) Compressor Type — Involute scroll

Air Circulation Type Cross-flow Fan Propeller Fan

Heat Exchanger Description Evaporator Condenser

Refrigerant Control Device — Expansion Valve Refrigeration Oil (c.c) — RB68A (360) Refrigerant (R410A) kg (oz) — 1.06 (37.4) Thermostat Electronic Control — Protection Device Electronic Control Electronic Control

Capillary Tube Flow Rate l/min — —

Air Filter Material

Inner diameter mm 12 — Length m 0.65 —

Width inch (mm) 31 - 15/32 (799) 34 - 7/16 (875) Depth inch (mm) 7 - 7/32 (183) 13 - 19/32 (345)

Motor Type — Brushless (4-pole) Rated Output W — 700

Material ASHT-18 P.P

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

Rate Output W 30 40

Fan Speed Lo (Cool/Heat) rpm 980 / 1,160 —

Me (Cool/Heat) rpm 1,220 / 1,360 — Hi (Cool/Heat) rpm 1,460 / 1,560 660 / 640

Tube material Copper Copper Fin material Aluminium (Pre Coat) Aluminium (Blue Coated) Fin Type Slit Fin Corrugated Fin Row / Stage (Plate fin configuration, forced draft)

FPI 21 18 Size (W × H × L) mm 610 × 315 × 25.4 871.7 × 711.2 × 22

Length mm — —

Inner Diameter mm — —

Style

inch inch

G ; Half Union 1/2”

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

L (liquid side) ; 1/4”

—— —

2/15 1/28

P.P.

Honeycomb

G ; 3-way valve 1/2”

L ; 2-way valve 1/4”

G (gas side) ; 1/2”

L (liquid side) ; 1/4”

—

•

Specifications are subjected to change without notice for further improvement.

CS-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E1 8DKD / CS-E2 1DKDS CU- E21DKD

3.2. CS-E18DKDW CU-E18DKD

Unit CS-E18DKDW CU-E18DKD

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

5.30 (0.90 - 6.00)

4,560 (770 - 5,160)

18,100 (3,070 - 20,500)

6.60 (0.90 - 8.00)

5,680 (770 - 6,880)

22,500 (3,070 - 27,300)

2.9

(6.1)

Single

220 - 230

SIDE VIEW TOP VIEW

Air Volume Lo m3/min (cfm) Cooling; 12.3 (430) —

Heating; 13.0 (460)

Me m3/min (cfm) Cooling; 13.9 (490) —

Heating; 14.6 (520)

Hi m3/min (cfm) Cooling; 15.2 (540) 40.0 (1,410)

Heating; 16.7 (590)

dB (A) Cooling; High 44, Low 37 Cooling; 47

Heating; High 44, Low 37 Heating; 47

Noise Level

Power level dB Cooling; High 57 Cooling; High 60

Heating; High 57 Heating; High 60

Electrical Data Input Power W Cooling; 1,650 (215 - 2,050)

Heating; 1,790 (245 - 2,650)

Running Current A Cooling; 7.7 - 7.5

Heating; 8.3 - 8.1

Piping Connection Port (Flare piping)

EER W/W Cooling; 3.21 (4.19 - 2.93)

BTU/hW Cooling; 11.0 (14.3 - 10.0)

COP W/W Heating; 3.69 (3.67 - 3.02)

BTU/hW Heating; 12.6 (12.5 - 10.3)

Starting Current A 8.3

inch inch

G ; Half Union 1/2”

L ; Half Union 1/4”

G ; 3-way valve 1/2”

L ; 2-way valve 1/4”

CS-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E1 8DKD / CS-E2 1DKDS CU- E21DKD

Unit CS-E18DKDW CU-E18DKD

Pipe Size (Flare piping)

Drain Hose

Power Cord Length Number of core-wire

Dimensions Height inch (mm) 10 - 13/16 (275) 29 - 17/32 (750)

Net Weight lb (kg) 24 (11) 108 (49) Compressor Type — Involute scroll

Air Circulation Type Cross-flow Fan Propeller Fan

Heat Exchanger Description Evaporator Condenser

Refrigerant Control Device — Expansion Valve Refrigeration Oil (c.c) — RB68A (360) Refrigerant (R410A) kg (oz) — 1.18 (41.7) Thermostat Electronic Control — Protection Device Electronic Control Electronic Control

Capillary Tube Flow Rate l/min — —

Air Filter Material

Inner diameter mm 12 — Length m 0.65 —

Width inch (mm) 39 - 9/32 (998) 34 - 7/16 (875) Depth inch (mm) 9 - 1/16 (230) 13 - 19/32 (345)

Motor Type — Brushless (4-pole) Rated Output W — 900

Material ASHT-18 P.P

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

Rate Output W 30 40

Fan Speed Lo (Cool/Heat) rpm 1,170 / 1,240 —

Me (Cool/Heat) rpm 1,330 / 1,395 — Hi (Cool/Heat) rpm 1,450 / 1,580 660 / 640

Tube material Copper Copper Fin material Aluminium (Pre Coat) Aluminium (Blue Coated) Fin Type Slit Fin Corrugated Fin Row / Stage (Plate fin configuration, forced draft)

FPI 21 16 Size (W × H × L) mm 810 × 315 × 25.4 849.3

Length mm — —

Inner Diameter mm — —

Style

inch inch

G (gas side) ; 1/2”

L (liquid side) ; 1/4”

—— —

2/15 2/34

P.P.

Honeycomb

G (gas side) ; 1/2”

L (liquid side) ; 1/4”

—

× 714 × 36.4

878

—

•

Specifications are subjected to change without notice for further improvement.

CS-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E1 8DKD / CS-E2 1DKDS CU- E21DKD

3.3. CS-E21DKDS CU-E21DKD

Unit CS-E21DKDS CU-E21DKD

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

6.30 (0.90 - 7.10)

5,420 (770 - 6,110)

21,500 (3,070 - 24,200)

7.20 (0.90 - 8.50)

6,190 (770 - 7,310)

24,600 (3,070 - 29,000)

3.5

(7.4)

Single

220 - 230

SIDE VIEW TOP VIEW

Air Volume Lo m3/min (cfm) Cooling; 12.5 (440) —

Heating; 13.5 (480)

Me m3/min (cfm) Cooling; 14.4 (510) —

Heating; 14.9 (530)

Hi m3/min (cfm) Cooling; 16.2 (570) Cooling; 42.8 (1,510)

Heating; 17.3 (610) Heating; 41.5 (1,460)

dB (A) Cooling; High 45, Low 37 Cooling; 48

Heating; High 45, Low 37 Heating; 49

Noise Level

Power level dB Cooling; High 58 Cooling; High 61

Heating; High 58 Heating; High 62

Electrical Data Input Power W Cooling; 2,210 (215 - 2,540)

Heating; 2,100 (245 - 2,750)

Running Current A Cooling; 10.4 - 9.9

Heating; 9.7 - 9.3

Piping Connection Port (Flare piping)

EER W/W Cooling; 2.85 (4.19 - 2.80)

BTU/hW Cooling; 9.7 (14.3 - 9.5)

COP W/W Heating; 3.43 (3.67 - 3.09)

BTU/hW Heating; 11.7 (12.5 - 10.5)

Starting Current A 9.7

inch inch

G ; Half Union 1/2”

L ; Half Union 1/4”

G ; 3-way valve 1/2”

L ; 2-way valve 1/4”

CS-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E1 8DKD / CS-E2 1DKDS CU- E21DKD

Unit CS-E21DKDS CU-E21DKD

Pipe Size (Flare piping)

Drain Hose

Power Cord Length Number of core-wire

Dimensions Height inch (mm) 10 - 13/16 (275) 29 - 17/32 (750)

Net Weight lb (kg) 24 (11) 112 (51) Compressor Type — Involute scroll

Air Circulation Type Cross-flow Fan Propeller Fan

Heat Exchanger Description Evaporator Condenser

Refrigerant Control Device — Expansion Valve Refrigeration Oil (c.c) — RB68A (360) Refrigerant (R410A) kg (oz) — 1.29 (45.5) Thermostat Electronic Control — Protection Device Electronic Control Electronic Control

Capillary Tube Flow Rate l/min — —

Air Filter Material

Inner diameter mm 12 — Length m 0.65 —

Width inch (mm) 39 - 9/32 (998) 34 - 7/16 (875) Depth inch (mm) 9 - 1/16 (230) 13 - 19/32 (345)

Motor Type — Brushless (4-pole) Rated Output W — 900

Material ASHT-18 P.P

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

Rate Output W 30 40

Fan Speed Lo (Cool/Heat) rpm 1,170 / 1,270 —

Me (Cool/Heat) rpm 1,355 / 1,400 — Hi (Cool/Heat) rpm 1,520 / 1,610 700 / 680

Tube material Copper Copper Fin material Aluminium (Pre Coat) Aluminium (Blue Coated) Fin Type Slit Fin Corrugated Fin Row / Stage (Plate fin configuration, forced draft)

FPI 19 18 Size (W × H × L) mm 810 × 315 × 25.4 839.5

Length mm — —

Inner Diameter mm — —

Style

inch inch

G (gas side) ; 1/2”

L (liquid side) ; 1/4”

—— —

2/15 2/34

P.P.

Honeycomb

G (gas side) ; 1/2”

L (liquid side) ; 1/4”

—

× 714 × 36.4

868

—

•

Specifications are subjected to change without notice for further improvement.

CS-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E1 8DKD / CS-E2 1DKDS CU- E21DKD

4 Dimensions

4.1. Indoor Unit & Remote Control

4.1.1. CS-E15DKDW

4.1.2. CS-E18DKDW CS-E21DKDS

CS-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E1 8DKD / CS-E2 1DKDS CU- E21DKD

4.2. Outdoor Unit

4.2.1. CU-E15DKD CU-E18DKD CU-E21DKD

5 Refrigeration Cycle Diagram

CS-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E1 8DKD / CS-E2 1DKDS CU- E21DKD

6 Block Diagram

7 Wiring Diagram

CS-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E1 8DKD / CS-E2 1DKDS CU- E21DKD

8 Operation Details

8.1. Basic Function

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)

Table (b): Outdoor Air Temperature Shifting

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

Cooling/Soft Dry 38 X 1.50 2.00

Heating 21 X -2.25 -1.50

Table (c): Powerful Mode Shifting

Mode: Period, X (min): Temperature Shift (°C)

Cooling X 20 -2.0

Soft Dry X 20 -1.0

Heating X 20 +3.5

CS-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E1 8DKD / CS-E2 1DKDS CU- E21DKD

Manual Operation Auto Operation

30 X 38 1.25 1.25 23 X 30 1.25 1.25

X 23 1.75 1.75

17 X 21 -1.75 -1.00 13 X 17 -0.75 0.00

9 X 13 0.25 0.25

5 X 9 1.25 1.00 1 X 5 0.75 1.00

-3 X 1 1.50 1.00 X -3 1.50 1.00

X 20 0.0

X 20 +3.25

Table (d): Quiet (Lo) Mode Shifting

Mode: Period, X (min): Temperature Shift (°C)

Cooling, Soft Dry 20 min X 50 min -3.0

Table (e): Fan Speed Shifting

Mode: Fan Speed: Temperature Shift (°C)

Cooling Lo -0.25

Soft Dry All +0.25 Heating Lo +1.50

Table (f): Start-Up Shifting

Mode within 60 Minutes from Start-up: Temperature Shift (°C) Cooling/Soft Dry -1.0 Heating +2.0

50 min X 110 min -4.0

110 min X 440 min -5.0

Me-, Me, Me+, Auto 0.00

Hi +0.25

Me-, Me, Me+, Auto +0.75

Hi +0.75

CS-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E1 8DKD / CS-E2 1DKDS CU- E21DKD

8.1.2. Compressor Operation Frequency

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

Zone Cooling & Soft Dry Heating Cooling Soft Dry Heating Remark

1 -2.0 1.5 1 1 1 2 -1.5 1.0 1 1 1 3 -1.0 0.5 14 8 11 4 -0.5 0.0 20 8 15 5 0.0 -0.5 27 8 22 6 0.5 -1.0 35 11 27 7 1.0 -1.5 43 11 36 8 1.5 -2.0 46 11 39 Fc, Fh

9 2.0 -2.5 46 11 39 Fc, Fh 10 2.5 -3.0 46 11 39 Fc, Fh 11 Nil -3.5 Nil Nil 39 Fh 12 Nil -4.0 Nil Nil 39 Fh

Operating Frequency Calculation Formula:

CompHz = Freq. A × Freq. H + Freq. C

Example Calculation:

Model No.: E18DK

Operation Mode: Cooling

When Intake Air Temperature - Internal setting Temperature:

1.5°C

CompHz = Freq. A × Freq. H + Freq. C

= 1.53 × 46 + 2.5 = 72 Hz (It cuts down less than a decimal point)

Cooling & Soft Dry E18DK E21DK

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

Low Load (Freq. H 9) 1.2 5.0 1.7 7.0

High Load (Freq. H > 10) 1.53 2.5 2.0 4.0

Heating E18DK E21DK

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

Low Load (Freq. H 11) 1.6 8.0 1.9 7.0

High Load (Freq. H > 12) 2.2 1.0 2.35 1.0

Freq. Range E18DK E21DK

Cooling Fc 72 96

Operation Range 12 ~ 86 12 ~ 102

Heating Fh 86 92

Operation Range 14 ~ 128 14 ~ 128

Remarks:

When Freq. H is equal to 46 (Cooling), 39 (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 (46), Fh (39).

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 +0.5°C.

CS-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E1 8DKD / CS-E2 1DKDS CU- E21DKD

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 > +1.5°C.

•

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

•

point -0.5°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-E15DKDW CU-E15DKD / CS-E1 8DKDW CU-E1 8DKD / CS-E2 1DKDS CU- E21DKD

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

E18DK 1530 1440 1360 1290 1220 1150 850 760 630 E21DK 1610 1520 1420 1330 1240 1150 890 800 630

[Heating]

Remote Control — O O O O O — — —

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

E18DK 1590 1560 1480 1410 1340 1270 850 400 300 E21DK 1640 1610 1520 1440 1350 1270 890 400 300

B. Indoor Fan Control

i. Indoor fan control operation outline

1. Cooling / Dry

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2. Heating

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ii. Auto Fan Speed

1. Cooling

2. Heating

Note:

a. UP:

If move from Lo, the fan speed will be shifted to Maximum 1520 rpm (E21DK), 1480 rpm (E18DK).

•

If move from Maximum, the fan speed no change.

•

In up zone, 10 rpm is added for every 10s until Maximum 1520 rpm (E21DK ), 1480 rpm (E18DK).

•

b. DOWN:

The fan speed will be decreased one step every 10 sec. until Minimum 1270 rpm.

•

c. Current Output Fixed:

Maintain at present fan speed.

•

d. Instantaneous Maximum:

Fan speed will be increased to maximum auto fan speed.

•

e. Temperature in ( ) is for Powerful Mode operation.

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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 72 Hz (E18DK), 95 Hz (E21DK) & 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 condition 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 86 Hz (E18DK), 93 Hz (E21DK) & 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 condition is ended.

C. Fan Motor Control

i. Motor specification

High voltage PWM Motor

ii. Feedba ck Control

1. Rotation speed feedback

Immediately after the fan started, rpm is checked and duty is added, and feedba ck control is performed.

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)

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D. Deodorizing Control

i. Control condition

Control at cooling/dry operation and auto fan speed.

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.

Odor Status 1 2 3 4 5 4 5 4.5.4... 1

Status Shift

according to COMP

Status Shift

according to time (s) Dry zone ON

Fan Speed

Cooling

zone

Cooling

zone

Dry zone OFF SLo OFF

40 50 — 20 90 20 90 .......

OFF

ON OFF ON

Auto Fan Speed

SLo

←→

OFF

SLo OFF .......

8.1.8. Outdoor Fan Motor Operation

Outdoor fan motor is operated with 15 fan speed. It starts when compressor starts operation and it stops 30 seconds after compressor stops operation.

Basic Rotation Speed

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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 exchan ger 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 A 16

B 50

Temperature C 8

D 8

Manual 8 17 33 49 60

Cooling, Soft Dry and Ion Auto 8~38

Manual 8 17 25 33 38

Mode Judgment in Auto Auto 8

Manual 8 17 25 33 38

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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.

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 depends on the indoor heat exchanger temperature as Figure 1 below.

Operation Mode Vane Angle (°)

Heating, with heat exchanger temperature A 68 ~ 112

B 90

Cooling, Soft Dry and Ion 68 ~ 112

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 68 79 101 112

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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. Powerful button is pressed.

b. Stop by OFF/ON switch.

c. Timer “off” activates.

d. Quiet button is pressed again.

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.

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

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

D. 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)

Manual Fan Speed (Dry operation)

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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. Powerful button is pressed.

b. Stop by OFF/ON switch.

c. Timer “off” activates.

d. Quiet button is pressed again.

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.

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