Philips CS-E15DB4EW User Manual

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Order No. MAC0502032C8

Air Conditioner

CS-E15DB4EW CU-E15DBE CS-E18DB4EW CU-E18DBE CS-E21DB4ES CU-E21DBE

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-E15DB4EW CU-E15DBE

3.2. CS-E18DB4EW CU-E18DBE

3.3. CS-E21DB4ES CU-E21DBE

4 Dimensions

4.1. Indoor Unit & Remote Control

3 4 5

6 8

4.2. Outdoor Unit 13

5 Refrigeration Cycle Diagram 6 Block Diagram 7 Wiring Diagram 8 Operation Details

8.1. Basic Operation

8.2. Protection Control Features

9 Operating Instructions 10 Installation And Servicing Air Conditioner Using R410A

10.1. Outline

10.2. Tools For Installing/Servicing Refrigerant Piping

14 15 16 17

17 28

34 42

42 43

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

10.3. Refrigerant Piping Work 47

10.4. Installation, Transferring, Servicing

11 Installation Instructions

11.1. Safety Precautions

11.2. Indoor Unit

11.3. Outdoor Unit

12 Servicing Information

12.1. Troubleshooting

12.2. Breakdown Self Diagnosis Function

12.3. Remote Control

12.4. Auto OFF/ON Button

12.5. Disassembly of Parts

13 Technical Data

13.1. Operation Characteristics

13.2. Sensible Capacity Chart

14 Exploded View (Indoor Unit)

1 Features

Product

•

− Four modes of operation selection

− Powerful Mode operation

− 24-Hour Real Time Timer Control

− Quiet Mode Operation

− Discharged air can be swung automatically or manually

by remote control

− Air filter with function to reduce dust and smoke.

14.1. CS-E15DB4EW CS-E18DB4EW CS-E21DB4ES 79

53 55 62

66 68 70 71 72

75 78

14.2. CZ-BT20E (Front Grille Complete)

15 Replacemen t Parts List (Indoor Unit)

15.1. CS-E15DB4EW CS-E18DB4EW CS-E21DB4ES

15.2. CZ-BT20E (Front Grille Complete)

16 Exploded View (Outdoor Unit)

16.1. CU-E15DBE CU-E18DBE CU-E21DBE

17 Replacemen t Parts List (Outdoor Unit)

17.1. CU-E15DBE CU-E18DBE CU-E21DBE

18 Electronic Circuit Diagram

18.1. Indoor Unit

18.2. Outdoor Unit

18.3. Remote Control

18.4. Print PatternIndoor Unit Printed Circuit Board

18.5. Print PatternOutdoor Unit Printed Circuit Board View

Serviceability Improvement

•

− Removable and washable Intake Grille

− Breakdown Self Diagnosis function

Environmental Protection

•

− Non-ozone-depletion substances refrigerant (R410A)

Quality Improvement

•

− Gas leakage detection

− Deice operation

− Auto restart control

82 83

86 90 95 96 97

2 Functions

2.1. Remote Control

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

OFF / ON I

MODE

Operation OFF / ON

Operation Mode Selection

•

AUTO HEAT COOL DRY

Automatic Operation Heating Operation Cooling Operation Soft Dry Operation

AUTO HEAT

COOL

DRY

OFF

TIMERONTIMER

OFF/ON

MODE

POWERFUL

QUIET

TIMER

123

OFF

CHECK

TEMP

CLOCK RESET

INVENTER

FAN SPEED

AIR SWING

CANCEL

FAN SPEED

AUTO

MANUAL

SET

TEMP

TIMER-ON TIMER-OFF

Room Temperature Setting

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

Timer Setting

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

POWERFUL

QUIET

AIR SWING

FAN SPEED

Powerful Mode Operation

Quiet Mode Operation

Airflow Direction Control

•

AUTO

Vertical Automatic Airflow Direction Control.

MANUAL

•

Vertical Manual Airflow Direction Control.

Indoor Fan Speed Selection

• Low

•

AUTO

MediumMedium Medium+ High Automatic Fan Speed

SET

CANCEL

CLOCK

CHECK

RESET

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-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

2.2. Indoor Unit

Automatic Operation Switch

• To run automatic operation, force cooling or heating operation, or change remote control signal type.

Operation Indication Lamps (LED)

•

POWER

•

TIMER

•

QUIET

•

POWERFUL

•

AIR SWING

(Green)........Lights up in operation,

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

(Orange)......Lights up in Timer Setting.

Blinks in Self Diagnosis Control.

(Orange)......Lights up in Quiet Mode

Operation.

(Orange) ... Lights up when Powerful

Mode is selected.

(Orange).... Lights up in Auto Air

Swing.

Four Operation Modes

• Automatic, Heating, Cooling and Soft Dry

Operation.

Quiet Mode

• To provide quiet operation.

24-Hour Real Time Timer Control

Automatic Restart Control

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

Microcomputer-controlled Room Temperature Control

Breakdown Self Diagnosis Function

Low Pressure Control (Gas Leakeage Detection)

Indoor Power Relay Control

Anti-Dew Formation Control

Anti Freezing Control

Automatic and 5 Manual Indoor Fan Speeds

Airflow Direction Control

• Vertical discharged air can be swung automatically or manually by remote control.

• Horizontal discharged air can be adjusted by hand.

Powerful Mode

• For quick cooling or heating.

Anti-Cold Draft Control

Hot Start

Intake Air Temperature Control

High Pressure Control

Deodorizing Control

Deice Operation

2.3. Outdoor Unit

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

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

Outdoor Air Temperature Control

Standby Control

Deice Operation

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

3 Product Specifications

3.1. CS-E15DB4EW CU-E15DBE

Unit CS-E15DB4EW CU-E15DBE

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

4.10 (0.90 - 4.80)

3,530 (770 - 4,130)

14,000 (3,070 - 16,400)

5.10 (0.90 - 6.20)

4,390 (770 - 5,330)

17,400 (3,070 - 21,100)

2.3

(4.9)

Single

230 - 240

SIDE VIEW TOP VIEW

Air Volume Lo m3/min (cfm) Cooling; 7.5 (260) —

Heating; 9.0 (320)

Me m3/min (cfm) Cooling; 9.0 (320) —

Heating; 10.1 (360)

Hi m3/min (cfm) Cooling; 10.5 (370) Cooling; 46.8 (1,650)

Heating; 10.8 (380) Heating; 48.5 (1,710)

dB (A) Cooling; High 34, Low 26 Cooling; 45

Heating; High 35, Low 28 Heating; 47

Noise Level

Power level dB Cooling; High 47 Cooling; High 58

Heating; High 48 Heating; High 60

Electrical Data Input Power W Cooling; 1,300 (255 - 1,710)

Heating; 1,770 (260 - 2,180)

Running Current A Cooling; 6.0 - 5.9

Heating; 8.0 - 7.9

Piping Connection Port (Flare piping)

EER W/W Cooling; 3.15 (3.53 - 2.81)

BTU/hW Cooling; 10.8 (12.0 - 9.6)

COP W/W Heating; 2.88 (3.46 - 2.84)

BTU/hW Heating; 9.8 (11.8 - 9.7)

Starting Current A 8.0

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-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

Unit CS-E15DB4EW CU-E15DBE

Pipe Size (Flare piping)

Drain Hose

Power Cord Length Number of core-wire

Dimensions Height inch (mm) 10 - 1/4 (260) 29 - 17/32 (750)

Net Weight lb (kg) 40 (18) 106 (48) Compressor Type — Involute scroll

Air Circulation Type Backward Fan Propeller Fan

Heat Exchanger Description Evaporator Condenser

Refrigerant Control Device — Expansion Valve Refrigeration Oil (cm3) — RB68A (400) Refrigerant (R410A) kg (oz) — 1.23 (43.4) Thermostat Electronic Control — Protection Device Electronic Control Electronic Control

Inner diameter mm 30 — Length m 0.193 —

Width inch (mm) 22 - 5/8 (575) 34 - 7/16 (875) Depth inch (mm) 22 - 5/8 (575) 13 - 19/32 (345)

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

Material ABS + GF 10% P.P

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

Rate Output W 40 40

Fan Speed Lo (Cool/Heat) rpm 400 / 480 —

Me (Cool/Heat) rpm 480 / 540 — Hi (Cool/Heat) rpm 560 / 600 640 / 660

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

FPI 18 18 Size (W × H × L) mm 1,330

inch inch

G (gas side) ; 1/2”

L (liquid side) ; 1/4”

—— —

2/10 1/28

× 210 × 25.4 871.7 × 711.2 × 22

1,270

G (gas side) ; 1/2”

L (liquid side) ; 1/4”

—

•

Specifications are subjected to change without notice for further improvement.

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

3.2. CS-E18DB4EW CU-E18DBE

Unit CS-E18DB4EW CU-E18DBE

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

4.80 (0.90 - 5.70)

4,130 (770 - 4,900)

16,400 (3,070 - 19,400)

5.60 (0.90 - 7.10)

4,820 (770 - 6,110)

19,100 (3,070 - 24,200)

2.6

(5.5)

Single

230 - 240

SIDE VIEW TOP VIEW

Air Volume Lo m3/min (cfm) Cooling; 8.0 (280) —

Heating; 9.1 (320)

Me m3/min (cfm) Cooling; 9.5 (340) —

Heating; 10.4 (370)

Hi m3/min (cfm) Cooling; 11.0 (390) 40.0 (1,410)

Heating; 11.5 (405)

dB (A) Cooling; High 36, Low 28 Cooling; 47

Heating; High 37, Low 29 Heating; 48

Noise Level

Power level dB Cooling; High 49 Cooling; High 60

Heating; High 50 Heating; High 61

Electrical Data Input Power W Cooling; 1,530 (255 - 1,930)

Heating; 1,900 (260 - 2,450)

Running Current A Cooling; 7.0 - 6.9

Heating; 8.5 - 8.3

Piping Connection Port (Flare piping)

Pipe Size (Flare piping)

EER W/W Cooling; 3.14 (3.53 - 2.95)

BTU/hW Cooling; 10.7 (12.0 - 10.1)

COP W/W Heating; 2.95 (3.46 - 2.90)

BTU/hW Heating; 10.1 (11.8 - 9.9)

Starting Current A 8.5

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-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

Unit CS-E18DB4EW CU-E18DBE

Drain Hose

Power Cord Length Number of core-wire

Dimensions Height inch (mm) 10 - 1/4 (260) 29 - 17/32 (750)

Net Weight lb (kg) 40 (18) 106 (48) Compressor Type — Involute scroll

Air Circulation Type Backward Fan Propeller Fan

Heat Exchanger Description Evaporator Condenser

Refrigerant Control Device — Expansion Valve Refrigeration Oil (cm3) — RB68A (400) Refrigerant (R410A) kg (oz) — 1.06 (37.4) Thermostat Electronic Control — Protection Device Electronic Control Electronic Control

Inner diameter mm 30 — Length m 0.193 —

—— —

Width inch (mm) 22 - 5/8 (575) 34 - 7/16 (875) Depth inch (mm) 22 - 5/8 (575) 13 - 19/32 (345)

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

Material ABS + GF 10% P.P

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

Rate Output W 40 40

Fan Speed Lo (Cool/Heat) rpm 430 / 490 —

Me (Cool/Heat) rpm 510 / 560 — Hi (Cool/Heat) rpm 590 / 640 660 / 660

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

2/10 2/34 FPI 18 16 Size (W × H × L) mm 1,330

× 210 × 25.4 849.3

1,270

—

× 714 × 36.4

878

•

Specifications are subjected to change without notice for further improvement.

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

3.3. CS-E21DB4ES CU-E21DBE

Unit CS-E21DB4ES CU-E21DBE

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

5.90 (0.90 - 6.30)

5,070 (770 - 5,420)

20,100 (3,070 - 21,500)

7.00 (0.90 - 8.00)

6,020 (770 - 6,880)

23,900 (3,070 - 27,300)

3.3

(7.0)

Single

230 - 240

SIDE VIEW TOP VIEW

Air Volume Lo m3/min (cfm) Cooling; 9.3 (330) —

Heating; 10.6 (370)

Me m3/min (cfm) Cooling; 11.0 (390) —

Heating; 12.3 (430)

Hi m3/min (cfm) Cooling; 12.8 (450) Cooling; 42.8 (1,510)

Heating; 14.0 (495) Heating; 41.5 (1,460)

dB (A) Cooling; High 41, Low 33 Cooling; 49

Heating; High 42, Low 34 Heating; 49

Noise Level

Power level dB Cooling; High 54 Cooling; High 62

Heating; High 55 Heating; High 62

Electrical Data Input Power W Cooling; 2,050 (255 - 2,200)

Heating; 2,450 (260 - 2,820)

Running Current A Cooling; 9.2 - 9.0

Heating; 10.9 - 10.6

Piping Connection Port (Flare piping)

Pipe Size (Flare piping)

EER W/W Cooling; 2.88 (3.53 - 2.86)

BTU/hW Cooling; 9.8 (12.0 - 9.8)

COP W/W Heating; 2.86 (3.46 - 2.84)

BTU/hW Heating; 9.8 (11.8 - 9.7)

Starting Current A 10.9

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-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

Unit CS-E21DB4ES CU-E21DBE

Drain Hose

Power Cord Length Number of core-wire

Dimensions Height inch (mm) 10 - 1/4 (260) 29 - 17/32 (750)

Net Weight lb (kg) 40 (18) 108 (49) Compressor Type — Involute scroll

Air Circulation Type Backward Fan Propeller Fan

Heat Exchanger Description Evaporator Condenser

Refrigerant Control Device — Expansion Valve Refrigeration Oil (cm3) — RB68A (400) Refrigerant (R410A) kg (oz) — 1.15 (40.6) Thermostat Electronic Control — Protection Device Electronic Control Electronic Control

Inner diameter mm 30 — Length m 0.193 —

—— —

Width inch (mm) 22 - 5/8 (575) 34 - 7/16 (875) Depth inch (mm) 22 - 5/8 (575) 13 - 19/32 (345)

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

Material ABS + GF 10% P.P

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

Rate Output W 40 40

Fan Speed Lo (Cool/Heat) rpm 510 / 580 —

Me (Cool/Heat) rpm 600 / 670 — Hi (Cool/Heat) rpm 700 / 770 700 / 680

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

2/10 2/34 FPI 18 18 Size (W × H × L) mm 1,330

× 210 × 25.4 839.5

1,270

—

× 714 × 36.4

868

•

Specifications are subjected to change without notice for further improvement.

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

4 Dimensions

4.1. Indoor Unit & Remote Control

4.1.1. CS-E15DB4EW CS-E18DB4EW CS-E21DB4ES

4.2. Outdoor Unit

4.2.1. CU-E15DBE CU-E18DBE CU-E21DBE

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

5 Refrigeration Cycle Diagram

6 Block Diagram

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

7 Wiring Diagram

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

8 Operation Details

8.1. Basic Operation

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

In order to achieve the suitable operation mode, the microcomputer maintains the set temperature by measuring the temperature of environment and performing temperature shifting.

8.1.1. Temperature Shifting Flow

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.

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

8.1.2. Cooling Operation

8.1.2.1. Thermostat control

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

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

point.

8.1.3. Soft Dry Operation

8.1.3.1. Thermostat control

• Compressor is OFF when Intake Air Temperature - Internal Setting Tempe rature < -2.0°C.

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

point.

8.1.4. Heating Operation

8.1.4.1. Thermostat control

• Compressor is OFF when Intake Air Temperature - Internal Setting Temperature > +2.0°C.

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

point.

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

8.1.5. 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.

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 -3 -5 19 ~ 22 +8 -3 -7 23 ~ 26 +7 -3 -7 27 ~ 30 +6 -3 -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 - 3 = 22; 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.

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

8.1.6. 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) PSHI SHI Hi Me+ Me Me- Lo Lo- SLo SSLo

E15D 600 560 560 495 480 425 400 370 310 200 E18D 680 640 590 563 510 488 430 410 350 200 E21D 800 750 700 660 600 560 510 480 410 200

[Heating]

Remote Control — — O O O O O — — —

Tab (rpm) PSHi SSHi SHi Me+ Me Me- Lo Lo- SLo SSLo

E15D 650 610 600 545 540 495 480 440 300 200 E18D 740 690 640 618 560 553 490 490 320 200 E21D 870 820 770 745 670 655 580 570 370 200

B. Indoor Fan Control

i. Indoor fan control operation outline

1. Cooling / Dry

2. Heating

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

ii. Auto Fan Speed

1. Cooling

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

2. Heating

Note: a. UP:

• If move from Lo, the fan speed will be shifted to Maximum 1520 rpm.

• If move from Maximum, the fan speed no change.

• In up zone, 10 rpm is added for every 10s until Maximum 1520 rpm.

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.

C. Fan Motor Control

1. Motor specification High voltage PWM Motor

2. Feedback Control a. Number-of-rotations feedback

Immediately after the fan started, rpm is checked and duty is added, and feedback control is performed. For high voltage PWM motor, it is done once every 0.5 second.

b. Offset duty T max/min limit

High voltage PWM motor has maximum offset duty. (Refer Indoor fan motor control basic rotation speed)

3. Abnormal Detection Control Conditions: a. Out of rhythm signal input b. If feedback number of rotations exceeded #2550 r/min or when less than #50 r/min. Control: Fans stop Return: Restart after 5 seconds * It will not detect the out of rhythm condition within 5s for phase control motor (PWM motor is when duty=0) after start. A fan stops when condition (1) and (2) happen within 25.0 seconds after fan starting, and if this happens for continuously

7 times, it will not retry. → FM lock processing

4. Restart Prohibition Control Restart is prohibited within 5s for phase control motor (PWM motor is when duty=0) after fan stop (except re-ON the power

supply).

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

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→6→7→6

(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 6 7 6.7.6... 1

Status Shift

according to COMP

Status Shift

according

to time (s) Dry zone ON

Fan Speed

Cooling

zone

Cooling

zone

Dry zone SLo

40 50 — 30 90 20 90 20.90.20...

OFF SSLo

ON OFF ON

Auto Fan Speed

SSLo OFF SSLo OFF SSLo.OFF...

←→

8.1.7. 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 for speed no.8.

No. RPM during Fan Speed (rpm)

E21D E18D E15D 15 75 73 71 14 75 73 71 13 70 68 66 12 68 66 64 11 64 62 60 10 62 60 60

9 58 58 58 8 50 50 50 7 45 45 45 6 40 40 40 5 35 35 35 4 30 30 30 3 25 25 25 2 20 20 20 1 15 15 15

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

8.1.8. Airflow Direction

1. There are one types of airflow, vertical airflow (directed by horizontal vane).

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).

8.1.8.1. Vertical Airflow

Operation Mode Airflow Direction Vane Angle (°)

1 2 3 4 5

Heating Auto with Heat Exchanger A Downward fix 70

Temperature B Downward fix 70

C Upward fix 20 D Upward fix 20

Manual 20 - - - 70

Cooling, Soft Dry and Ion Auto 20 ~ 70

Manual 20 - - - 70

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.

8.1.9. 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.

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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 -1 step from setting fan speed.

8.1.9.1. 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 -1 step from setting fan speed.

3. Fan Speed Auto

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

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8.1.10. Powerful Mode Operation

When the powerful mode is selected, the internal setting temperature will shift to achieve the setting temperature quickly.

(a) Cooling Operation

(b) Soft Dry Operation

8.1.11. 24-Hour Real Time Timer Control

ON Timer

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.

Outdoor fan-ON instructions are transmitted to outdoor unit 60 minutes before setting time, then sampling the outdoor / indoor temperature with indoor fan at Lo- for 30 seconds. After detecting the indoor/outdoor temperature, the unit determines the operation starting time according to the load. However, when outdoor unit is operating, the preparation starting time will be set to minimum.

OFF Timer

When the OFF timer is set by using the remote control, the unit stop operate according to the desired setting.

Notes:

1. By pressing ON/OFF operation button, the ON Timer/OFF Timer setting will not be cancelled.

2. To cancel the previous timer setting, press CANCEL button.

3. To activate the previous timer setting, press SET button.

4. If main power supply is switched off, the Timer setting will be cancelled.

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8.1.12. 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.

8.1.13. Indication Panel

LED POWER TIMER QUIET POWERFUL AIR SWING

Color Green Orange Orange Orange Orange

Light ON Operation ON Timer Setting ON Quiet Mode ON Powerful Mode ON Auto Air Swing ON

Light OFF Operation OFF Timer Setting OFF Quiet Mode OFF Powerful Mode OFF Auto Air Swing OFF

Note:

• If POWE R LED is blinking, the possible operations of the unit are Hot Start, during Deice operation, operation mode

judgment, or delay ON timer sampling.

• If Timer LED is blinking, there is an abnormality operation occurs.

8.1.14. Drain Pump Control Operation

• To drain out the condensed watar trapped in the drain pan in order to prevent the condensed water from overflowing from the drain pan and leaking.

• Drain Pump starts to operate 10 sec. after compressor and Indoor fan ON.

• Drain Pump stop to operate 90 sec. after compressor OFF.

Drain Pump Error

Drain Pump Error occurs when:

- Within 20 minutes, the float switch is ON twice.

- Float switch is ON continuously for 2 minutes 30 seconds.

When error occurs, the timer indicator blinks and the unit stops its operation.

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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 for 20 seconds 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 2 minutes.

Model E15D E18D E21D

Operation Mode X(A) Y(A) X(A) Y(A) X(A) Y (A) Cooling/Soft Dry (A) 7.20 17 8.74 17 11.02 17 Cooling/Soft Dry (B) & (C) 6.30 17 7.70 17 9.59 17 Heating 8.60 17 10.71 17 11.53 17

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 100°C, compressor operation will stop immediately.

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 22.33 A, the compressor will stop operate. Then, operation will restart after three minutes.

2. If the set value is exceeded again more than 30seconds 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 condition repeats continuously for seven times, all indoor and outdoor relays will be cut off.

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8.2.1.5. Compressor Overheating Prevention Control

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

8.2.1.6. Low Pressure Prevention Control (Gas Leakage Detection)

a. Control start conditions

Control will perform when (1) - (3) condition continues operation for 5 minute and (4) is fulfill.

1. During cooling and dry operation: Frequency more than normal Fcmax 78 Hz (E15D), 86 Hz (E18D), 102 Hz (E21D). During heating operation: Frequency more than normal Fh 71 Hz (E15D), 86 Hz (E18D), 92 Hz (E21D).

2. Outdoor total current I cooling: Ib Heating: Ib Ic = Ia = 1.65 A Ib = 0.65 A

3. It is not during deice operation.

4. During cooling and dry operation: indoor suction-indoor piping temperature is below 4°C. During of heating operation: Indoor piping temperature-indoor suction is under 5°C. Control contents:

• compressor stops (restart after 3 minutes)

• if happen 2 times within (20 minutes), perform the following operation

1) Unit stop operation

2) Timer LED blink and “F91” indicated

I Ic

I Ia

8.2.1.7. Low Frequency Protection Control 1

When the compressor operate at frequency lower than 25 Hz continued for 20 minutes, the operation frequency will be increased to 24 Hz for two minutes.

8.2.1.8. 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 for cooling mode operation and 20 Hz for heating mode operation.

Temperature, T, for: Cooling/Soft Dry Heating Indoor intake air (°C) T 14 or T 30 T 14 or T 28 Outdoor air (°C) T 13 or T 38 T 4orT 24 Indoor heat exchanger (°C) T 30 T 0

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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. This control will begin one minute after the compressor starts.

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 63°C

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

ii. Electrical part temperature rise protection control

1. Purpose To prevent electronic components temperature rise during cooling overload.

2. Judgement Conditions a) Outdoor temperature

b) Outdoor total current above 5 A.

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3. Control contents In the outdoor fan speed no. i) In protectorate Domain A is referred to as min 660 rpm. ii) In protectorate Domain B, it is referred to as min 600 rpm.

4. Condition resolutive It is canceled when it stops satisfying all of the above-mentioned.

8.2.2.3. Anti-Freezing Control

1. When indoor heat exchanger temperature is lower than 7°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 13°C.

3. At the same time, indoor fan speed increase +20 rpm compared to its normal operation.

4. If indoor heat exchanger temperature is higher than 13°C for five minutes, the fan speed will return to its normal operation.

8.2.2.4. Anti-Dew Formation Control

a. Purpose To prevent dew.

b. Control start conditions When indoor are ceiling floor, duct and mini casette.

c. Control contents Hz control is carried out according to the spray prevention status transmitted from indoor.

Spray prevention

status(transmitted indoor)

0 (it usually controls Usually, control Usually, control

1 (rise) Relative change control priority On tap up/10 seconds

2 (changeless) Changeless Changeless

3 (down) -2 Hz/10 seconds -2 Hz/10 seconds

Relative control domain MAX domain

* Once the standup went into the down domain by Fcmax as for the Fcmax domain, it shifts to relative change control domain.

When the higher rank of relative control has this control and the status signal of 2-3 has come out. Relative change control is stopped and follows directions of spray control. Priority is given to the which is larger when freeze prevention down status and spray prevention down status are transmitted

simultaneously. In the case of spray status

0, it is referred to as maxFc.

Control contents

Change is once to 10 seconds.

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8.2.3. Protection Control For Heating Operation

8.2.3.1. Intake Air Temperature Control

Compressor will operate at Max freq 94 (E15D), 128 (E18D, E21D) Hz if either one of the below conditions occur:

1. When the indoor intake air temperature is less than 21°C and remote control setting fan speed is lower Me-.

2. When the indoor intake air temperature is 35°C or above.

8.2.3.2. Outdoor Air Temperature Control

The Max current value is regulated in accordance to the outdoor air temperature as shown in the below figures.

8.2.3.3. Overload Protection Control

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

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8.2.3.4. Deice Control

• Deice starts to prevent frosting at outdoor heat exchanger.

• Deice operation detection commences after minimum 60 minutes of Heating Operation.

• The outdoor heat exchanger temperature drops below 3°C for long period (minimum 40 minutes) during compressor is in

operation, the deice operation may starts.

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9 Operating Instructions

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10 Installation And Servicing Air Conditioner Using R410A

10.1. Outline

10.1.1. 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 efficiency 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 alkylbenzene 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.

10.1.2. 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 an water leakage, electric shock, fire, etc.

10.2. Tools For Installing/Servicing Refrigerant Piping

10.2.1. 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.

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10.2.2. 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.

Fig. 1 Copper tube gauge for clearance adjustment

Fig. 2 Flaring tool (clutch type)

3. Torque wrenches

Fig. 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

3 3

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

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

3 3

• 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

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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.

Fig. 4 Manifold gauge charging hose

Table 8 Difference between R410A and conventional charging hoses

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)

Conventional hoses R410A hoses

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.

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

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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 cylinder 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 cylinders. (The 10-kg cylinder is recommended.)

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

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 cylinders

• 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

10.2.3. 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

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10.3. Refrigerant Piping Work

10.3.1. 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

10.3.2. 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

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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)

10.3.3. 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.

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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.

10.4. Installation, Transferring, Servicing

10.4.1. 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 condition 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

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10.4.2. 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 counterclockwise. (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 3way 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.

10.4.3. 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 different. 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 cleaning 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.

10.4.4. 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.

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10.4.5. 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.

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 cylinder 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

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10.4.6. 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 cylinder.

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 Cautions

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 oxidation preventive.

10.4.7. 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 models only)

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11 Installation Instructions

11.1. Safety Precautions

• Read the following “SAFETY PRECAUTIONS” carefully before installation.

• Electrical work must be installed by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit

for the model to be installed.

• The caution items stated here must be followed because these important contents are related to safety. The meaning of each indication used is as below.

Incorrect installation due to ignoring of the instruction will cause harm or damage, and the seriousness is classified by the following indications.

WARNING

CAUTION

The items to be followed are classified by the symbols:

• 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.

This indication shows the possibility of causing death or serious injury. This indication shows the possibility of causing injury or damage to properties only.

Symbol with background white denotes item that is PROHIBITED from doing.

WARNING

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 instructions 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, unit will drop and cause injury.

5. For electrical work, please follow the local national wiring standard & regulation and this installation instructions. 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 and connect tightly for indoor/outdoor connection. Please clamp the cable firmly 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, please take care not to let air or other 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. When connecting the piping, do not allow air or any substances other than the specified refrigerant (R410A) to enter the refrigeration cycle. Otherwise, this may lower the capacity, cause abnormally high pressure in the refrigeration cycle, and possibly result in explosion and injury.

10.

When connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such same may cause

•

abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. Use only R410A materials.

Thickness of copper pipes used with R410A must be more than 0.8 mm. Never use copper pipes thinner than 0.8

•

mm. It is desirable that the amount of residual oil is less than 40 mg/10 m.

•

11. 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.

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CAUTION

1. This 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.

ATTENTION

1. Selection of the installation location and installation. 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 socket using a power plug.

Use an approved 15A 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 3.5 mm contact gap.

3. Do not release refrigerant. Do not release refrigerant during piping work for installation, re-installation and during repairing a refrigeration parts. Take care o f 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.

Attached accessories

Applicable piping kit CZ-4F5, 7, 10BP

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Select the best location

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 indicated 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 10m, additional refrigerant should be added as shown in the table.

11.2. Indoor Unit

• This illustration is for explanation purposes only. The indoor unit will actually face a different way.

11.2.1. SELECTING THE LOCATION FOR THE INDOOR UNIT

Provide a check port on the piping side ceiling for repair and maintenance.

• Install the indoor unit once the following conditions are satisfied and after receiving the customer approval.

1. The indoor unit must be within a maintenance space.

2. The indoor unit must be free from any obstacles in path of the air inlet and outlet, and mustallow spreading of air throughout the room.

3. Recommended installation height for indoor unit shall be at least 2.5 m.

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

WARNING

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

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

6. The indoor unit must allow easy draining.

7. The indoor unit must allow easy connection to the outdoor unit.

8. Place the indoor unit according to the height from the ceiling shown in the illustration below.

9. The indoor unit must be from at least 3m away from any noise-generating equipment. The electrical wiring must be shielded with a steel conduit.

10. If the power supply is subject to noise generation, add a suppressor.

11. Do not install the indoor unit in a laundry. Electric shocks may result.

NOTE

− Thoroughly study the following installation locations

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

of the heat exchanger and the drain pump, resulting in heat exchange reduction, spraying, dispersing of water drops, drain pump malfunction, etc.

In these cases, take the following actions:

− Make sure that the ventilation fan for smoke-collecting hood on a cooking table has sufficient capacity so that it draws oily steam which should not flow into the suction of the air conditioner.

− Make enough distance from the cooking room to install the air conditioner in such place where it may not suck in oily steam.

2. Avoid installing the air conditioner in such circumstances where cutting oil mist or iron powder exist especially in factories, etc.

3. Avoid places where inflammable gas is generated, flows-in, contaminated, or leaked.

4. Avoid places where sulphurous acid gas or corrosive gas can be generated.

5. Avoid places near high frequency generators.

Model Name Height in the ceiling

CS-E15DB4** CS-E21DB4** CS-E18DB4**

280 mm or more

11.2.2. INSTALLATION OF INDOOR UNIT

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

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CEILING OPENING DIMENSIONS AND HANGING BOLT

LOCATION

The paper model for installation expand or shrink according to temperature and humidity.

Check on dimensions before using it.

CAUTION During the installation, care must be taken not to

damage electric wires.

• The dimensions of the paper model for installations the same as those of the ceiling opening dimensions.

• Be sure to discuss the ceiling drilling work with the workers concerned.

POSITIONS OF AIR CONDITIONER BODY AND CEILING SURFACE

11.2.3. REFRIGERANT PIPING

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

1. Brazing for piping. a. Execute brazing before tightening the flare nut. b. Brazing must be executed while blowing nitrogen gas.

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

2. When there is a lot of brazings for long piping, install a strainer midway of the piping. (The strainer is locally supplied.)

3. Use clean copper pipe with inner wall surface free from mist and dust. Blow nitrogen gas or air to blow off dust in the pipe before connection.

4. Form the piping according to its routing. Avoid bending and bending back the same piping point more than three times.

(This will result in hardening of the pipe).

5. After deforming the pipe, align centers of the union fitting of the indoor unit and the piping, and tighten them firmly with wrenches.

6. Connect pipe to the service valve or ball valve which is located below the outdoor unit.

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

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Vacuum drying

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

CAUTION Use two wrenches and tighten with regular torque

Flare nut fastening torque N·m (kgf·cm)

ø6.35 mm 18 (180) ø12.7 mm 55 (560) ø19.05 mm 100 (1020) ø9.52 mm 42 (430) ø15.88 mm 65 (660)

Liquid size piping Gas side piping

ø6.35 mm (1/4”) ø12.7 mm (1/2”)

11.2.4. INDOOR UNIT DRAIN PIPING

•

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

•

Be sure to check no air trap and to ensure smooth water flow and no abnormal.

•

During drain piping connection, be careful not to exert extra force on the drain port at the indoor unit.

•

The outside diameter of the drain connection at the indoor unit is 32mm.

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

•

Be sure to perform heat insulation on the drain piping.

Heat insulation material: Polyvinylene foam with thickness more than 8 mm (local supply).

•

The height of drain may be possible up to 750 mm.

Drain Test

•

Connect the main drain pipe to exterior and leave it provisionally until the test comes to an end.

•

Feed water to the flexible drain hose and check the piping for leakage.

•

Be sure to check the drain up motor for normal operating and noise when electric wiring is complete.

•

When the test is complete, connect the flexible drain hose to the drain port.

•

Pour about 600-700cc of water in the drain pan of the indoor unit. (Pour from the position specified in the drawing by using a

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

•

When drain set piping, install as shown in the figure below.

water supply bottle or other suitable tool.)

•

Press the drain pump test run on pcb to start the drain motor, and verity water drainage. (The drain motor will automatically stop after operating for about five minutes.)

11.2.5. HEAT INSULATION

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

to water leakage.

1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120°C).

2. Precautions in high humidity circumstance. This air conditioner has been tested according to the “JIS Standard Conditions with Mist” and have been confirmed that there

are no faults. However, if it is operated for a long time in high humid atmosphere (dew point temperature: more than 23°C), water drops are liable to fall. In this case, add heat insulation material according to the following procedure:

• Heat insulation material to be prepared Adiabatic glass wool with thickness 10 to 20 mm.

• Stick glass wool on all air conditioners that are located in ceiling atmosphere.

• In addition to the normal heat insulation (thickness: more than 8 mm) for refrigerant piping (gas piping: thick piping) and

drain piping, add a further of 10 mm to 30 mm thickness material.

Wall seal

• When the outdoor unit is installed on a higher position

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

• Stuff the space among piping, the electric wire, and- the

drain hose with “Putty” and seal the penetration wall hole.

Make sure that rain water do not instill into the wall.

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11.2.6. CONNECTING THE CABLE TO THE INDOOR

• Remove the mounting screw, remove the control box cover, and then connect the wires by following the procedure given in the illustration.

11.2.7. INSTALLATION OF DECORATIVE PANEL

Earth lead wire shall be longer than other wires as shown in the figure for the electrical safety in case of the slipping out of the cord from anchorage.

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

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

2. Fitting the decorative panel

• Temporarily secure the fixing screws (3 pcs.) before fitting the decorative panel. (For temporarily securing the front grille.)

• Place decorative panel on the screws (3 pcs.) before fitting, move decorative panel as illustrated and tighten all the screws (4 pcs.).

CAUTION

• Check before hand the height from the ceiling to the

unit.

• The front grille fitting direction is determined by the unit

direction.

• Only use the screws with the length of 35mm which is

provided, to fix the decorative panel.

• Do not use other screw which is longer it may cause

damage to the drain-pan and other components.

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

3. Fit the decorative panel and ceiling wall together and confirm no gap in between. Readjust indoor unit height, if there is a gap between ceiling wall and decorative panel.

4. Open the indoor control box cover. (2 pcs)

5. Insert firmly the connector of cosmetic louver to indoor pcb CN-STM1, CN-DISP and CN-STM2.

Be caution not to clamp the cord in between control board and control board cover.

6. After complete, install back removed part follow opposite procedure.

WARNING Be sure to hook the air inlet grill string, to prevent

grill from falling and causing injury from it.

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

11.3. Outdoor Unit

11.3.1. SELECT THE BEST LOCATION

(Refer to “Select the best location” section)

11.3.2. 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.

11.3.3. 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.

Piping size (Torque)

Gas Liquid

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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11.3.4. EVACUATION OF THE EQUIPMENT

WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE 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 vacuum pump 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 from 0 cmHg (0 MPa) to

-76 cmHg (-0.1 MPa). Then evacuate the air approximately ten minutes.

4. Close the Low side valve of the charging set and 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 IN ORDER TO AVOID REFRIGERANT GAS LEAKAGE.

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

6. Tighten the service port caps of the 3-way valve at 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 leak stops when the piping connections are tightened further, continue working from 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.

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

11.3.5. CONNECT THE CABLE TO THE OUTDOOR UNIT

(FOR DETAIL REFER TO WIRING DIAGRAM AT 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 × 1.5 mm type designation 245 IEC 57 or heavier cord.

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

4. Cable connection to the power supply through knife switch (Disconnecting means).

• Connect the approved polychloroprene sheathed power supply cable (3 x 2.5 mm cord to the terminal board, and connect the other end of the cable to knife switch (Disconnecting means).

Note: Knife switch (Disconnecting means) should have minimum 3.5 mm contact gap.

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

), type designation 245 IEC 57 or heavier

flexible cord,

11.3.6. 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, for the drain water freezes and the fan will not rotate.

AUTO SWITCH OPERATION

The following operations can be performed by pressing the “AUTO” switch.

1. AUTO OPERATION 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 8 sec. A “beep” sound will occur at the fifth sec., in order to identify the starting of Test Run operation.

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CHANGING THE REMOTE CONTROL TRANSMISSION

CODE

1. Press AUTO SW continuously for 11 seconds (buzzer sound = pep pep pep)

2. After 11 seconds, release AUTO SW, then press RemoCon TIMER “

” SW continuously for 5 seconds. Reset code will be transmitted. After the reset code is transmitted, release TIMER “

” SW.

3. Press Remo-Con “OFF/ON” button. The new Remo-Con No. will be accepted and memorized, after which the new Remo-Con No. can be used.

REMO-CON NO. CHANGE IN REMOTE CONTROL

1. Remove the batteries from the battery compartment of the Remote Control.

2. On the left side of the battery compartment, there is a small opening in the centre in which Jumper (J_A) can be seen. In the accepted Remo-Con PCB shown beside, Jumper (J_B) can be seen.

J_A J_B Remo-Con No. Short Open A (Default) Open Open B Short Short C Open Short D

CHECK ITEMS

Is there any gas leakage at flare nut connections?

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

Is the connecting cable being fixed to the terminal board firmly?

Is the connecting cable being clamped firmly?

Is the drainage OK?

Is the Earth wire connection properly done?

Is the cooling operation normal?

Is the indoor unit property secured to the installation plate?

Is the power supply voltage complied with rated value?

Is there any abnormal sound?

Is the thermostat operation normal?

Is the remote control’s LCD operation normal?

HAND OVER

• Teach the customer the operation and maintenance procedures, using the operation manual (air filter cleaning, temperature control, etc.)

As to parts to be sold separately

• With regards to installation of the parts sold separately, follow the installation manual which is provided with the parts sold separately.

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

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-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

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 identified through the below breakdown diagnosis method:

•

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

•

By pressing the TMER “ displayed.

•

If error code displayed matches the error code saved in unit memory (abnormality detected), “beep, beep, beep....” sounds will

be heard for 4 seconds 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 displayed; press “V” button once, previous error code will be

Error Codes Table

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Diagnosis

display

H11 Indoor / outdoor abnormal

H12 Connection capability rank abnormal — — — H14 Indoor intake air temperature sensor

H15 Outdoor compressor temperature sensor

H16 Outdoor Current Transformer open

H19 Indoor fan motor merchanism lock — —

H21 Indoor float switch operation abnormal — — — H23 Indoor heat exchanger temperature

H27 Outdoor air temperature sensor

H28 Outdoor heat exchanger temperature

H30 Discharge temperature sensor

H33 Indoor/Outdoor wrong connection — — H35 Indoor drain water adverse current

H38 Indoor/Outdoor mismatch (brand code) — — — H97 Outdoor Fan Motor lock abnormality — —

H98 Indoor high pressure protection — —

H99 Indoor heat exchanger anti-freezing

F11 Cooling / Heating cycle changeover

F90 PFC control 4 times occurance

F91 Refrigeration cycle abnormality 7 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

abnormality

abnormal

protection

abnormality

protection

detection

Judgement

> 1 min after starting operation

Continue for 5 sec. —

— —

Continue for 5 sec. O

Continue for 5 sec. —

— — —

— —

4 times occurance within 30 minutes

within 10 minutes

continuously

within 20 minutes

— —

4 times occurance within 20 minutes

within 20 minutes 7 times occurance

continuously

Emergency

operation

Indoor fan 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)

• Outdoor temperature sensor (defective or disconnected)

• Outdoor heat exchanger temperature sensor (defective or disconnected)

• Discharge temperature sensor

• 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

• Voltage at PFC

• 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 Control.

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

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12.3. Remote Control

Remote Control Reset

• When the batteries are inserted for the first time or the batteries are replaced, you may notice the indications at remote control’s display screen blink continuously and not functionable. If this condition happens, try to reset the remote control by pushing the reset terminal with a pointing device.

• You may also do the reset to erase the setting at remote control and restore back the default setting.

Setting Remote Control Transmission Code

• There are 4 types of remote control transmission code could be selected. The indoor unit will only operate when received signal with same transmission code from remote control. This could prevent signal interference when there are 2 or more indoor unit installed nearby together.

• To change remote control transmission code, short or open jumpers at the remote control printed circuit board.

• Under various setting mode, after select the transmission code combination of remote control, press “Timer Decrement”

button of remote control for 5 seconds to transmit a signal to indoor unit. The transmission code will be stored in EEPROM.

• After signal is received, the various setting mode is cancelled and return to normal operation.

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12.4. Auto OFF/ON Button

• The “Auto OFF/ON” button is used to operate the air conditioner if remote control is misplaced or malfunctioning.

• Auto operation is started once “Auto OFF/ON” button is pressed.

• Forced cooling operation is possible by pressing the “Auto OFF/ON” button for more than 5 seconds where “beep” sound is

heard, then release the button.

• By continuously pressing the “Auto OFF/ON” button, it will enable standby states for Forced Heating Operation, Various Setting Mode and Individual Correspondence Mode. At standby state, the unit still operates with Forced Cooling Operation.

• Press “Timer Decrement” button of remote control for 5 seconds to activate the standby mode, where “beep” sound is heard.

• In Various Setting Mode, the unit captures remote control transmission code when “Check” button is pressed.

• In Individual Correspondence Mode, press “Check” button at remote control to enter remote control signal receiving sound

selection mode. Press “Auto OFF/ON” button to trigger the remote control signal receiving sound.

− Short “Beep”: Turn OFF remote control signal receiving sound.

− Long “Beep”: Turn ON remote control signal receiving sound.

• After signal is received, the unit returns to normal operation.

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12.5. Disassembly of Parts

1. Open the Intake Grille from the Front Grille by moving the catchers to center (Fig. 1).

2. Remove the Control Board Cover by removing the screws (Fig. 2).

Fig. 1

3. Release the (Fig. 3):

• CN-STM1 (WHT) connector.

• CN-STM2 (YLW) connector.

• CN-DISP (WHT) connector.

• CN-FM (WHT) connector.

• CN-TH1 (WHT) connector.

• CN-TH2 (BLU) connector.

• CN-DRMTR1 (BLU) connector.

• AC01 (BLK), AC02 (WHT) and CN-DRMTR2 (RED)

from Terminal Board.

• G01 (GRN) screw.

• Two T-BLK connectors.

• CN-T1 (WHT).

• CN-T2 (YLW).

4. To remove the Electronic Controller, release the 6 hooks that hold it to the Control Board (Fig. 4).

Fig. 2

Fig. 3

Fig. 4

5. Remove the Front Grille by removing the screw A and screws B, C & D half way open (Fig. 5).

6. Remove the Air Guider and Drain Pan complete by removing the screws (Fig. 6).

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

Fig. 5

7. Remove the Turbo Fan by removing the bolt (Fig. 7).

8. Remove the Fan Motor by release the Fan Motor lead wire connectors and Fan Motor screws (Fig. 8).

Fig. 6

Fig. 7

Fig. 8

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

Outdoor Electronic Controller Removal Procedure

1. Remove the top panel and front panel

Fig. 9

Be save to return the wiring to its original position

•

There are many high voltage components within the heat

•

sink cover so never touch the interior during operation. Wait at least two minutes after power has been turned off.

2. Remove the Outdoor Electronic Controller

Fig. 10

Fig. 11

Fig. 12

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

13 Technical Data

13.1. Operation Characteristics

13.1.1. CS-E15DB4EW CU-E15DBE

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

13.1.2. CS-E18DB4EW CU-E18DBE

13.1.3. CS-E21DB4ES CU-E21DBE

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

13.2. Sensible Capacity Chart

CS-E15DB4EW CU-E15DBE

●

Indoor wet

bulb temp.

17.0°C 4.07 3.08 1.19 3.80 2.96 1.28 3.53 2.84 1.37 3.21 2.70 1.48

19.0°C 4.10 1.30

19.5°C 4.46 3.23 1.21 4.17 3.10 1.31 3.88 2.99 1.40 3.53 2.84 1.51

22.0°C 4.87 3.35 1.24 4.55 3.22 1.33 4.23 3.11 1.42 3.85 2.96 1.53

CS-E18DB4EW CU-E18DBE

●

Indoor wet

bulb temp.

17.0°C 4.76 3.61 1.40 4.45 3.46 1.51 4.14 3.33 1.61 3.76 3.16 1.74

19.0°C 4.80 1.53

19.5°C 5.23 3.78 1.43 4.89 3.63 1.54 4.55 3.50 1.64 4.13 3.33 1.77

22.0°C 5.70 3.92 1.45 5.32 3.77 1.56 4.95 3.64 1.67 4.50 3.47 1.80

CS-E21DB4ES CU-E21DBE

●

Indoor wet

bulb temp.

17.0°C 5.85 4.44 1.88 5.47 4.26 2.02 5.09 4.09 2.16 4.63 3.89 2.33

19.0°C 5.90 2.05

19.5°C 6.43 4.65 1.91 6.01 4.46 2.06 5.59 4.30 2.20 5.08 4.09 2.37

22.0°C 7.00 4.82 1.95 6.54 4.63 2.10 6.09 4.47 2.24 5.53 4.26 2.42

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

30 35 40 46

Outdoor Temp. (°C)

TC - Total Cooling Capacity (kW) Indoor 27°C/19°C SHC - Sensible Heat Capacity (kW) Outdoor 35°C/24°C IP - Input Power (kW)

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14 Exploded View (Indoor Unit)

14.1. CS-E15DB4EW CS-E18DB4EW CS-E21DB4ES

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

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.

14.2. CZ-BT20E (Front Grille Complete)

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

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-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

15 Replacement Parts List (Indoor Unit)

15.1. CS-E15DB4EW CS-E18DB4EW CS-E21DB4ES

REF. NO. PARTS NAME & DESCRIPTION QTY CS-E15DB4EW CS-E18DB4EW CS-E21DB4ES REMARKS

1 BASE PAN ASS’Y 1 CWD52K1100 2 INNER POLYSTYRENE COMPLETE 1 CWG07C1047 3 CABINET SIDE PLATE ASS’Y 1 CWE041121 4 CABINET SIDE PLATE ASS’Y 1 CWE041122 5 LEAD WIRE - FAN MOTOR 1 CWA67C5136 6 FAN MOTOR 1 EHDS50A40AC 7 ANTI - VIBRATION BUSHING 3 CWH501065 8 CORD HOLDER 1 CWD741024

9 SCREW - FAN MOTOR 3 CWH7080300 11 TURBO FAN 1 CWH03K1022 12 NUT for TURBO FAN 1 CWH561042 13 SP WASHER 1 XWA8 14 WASHER 1 XWG8H22 15 EVAPORATOR COMPLETE 1 CWB30C1668 16 FLARE NUT (1/2”) 1 CWT251032 17 HEATPROOF TUBE 1 CWG021024 18 HEATPROOF TUBE 1 CWG021064 19 FLARE NUT (1/4”) 1 CWT251030 21 PIPE COVER 1 CWD93C1050 22 SENSOR - EVAPORATOR 1 CWA50C2274 23 HOLD SENSOR 1 CWH32143 24 EVAPORATOR SUPPORTER 3 CWD911529A 25 TUBE ASS’Y (CAPIL. TUBE) 1 CWT07K1188 26 DRAIN PUMP COMPLETE 1 CWB53C1015 27 PANEL DRAIN PUMP ASS’Y 1 CWD93K1008 28 DRAIN PUMP 1 CWB532043 29 ANTI - VIBRATION BUSHING 3 CWH501080 30 FLOAT SWITCH - DRAIN PUMP 1 CWA121215 31 FLEXIBLE PIPE 1 CWH85C1033 32 DRAIN NOZZLE 1 CWH411011 33 DRAIN HOSE HEAT INSULATION 1 CWG321050 35 DRAIN PAN - COMPLETE 1 CWH40C1034 36 DRAIN PLUG 1 CWB821008 37 AIR GUIDER BLOWER WHEEL 1 CWD321058 38 CONTROL BOARD CASING 1 CWH10K1048 39 ELECTRONIC CONTROLLER (MAIN) 1 CWA73C1778 CWA73C1779 CWA73C1780 O 40 SPACER 6 CWH541026 41 TRANSFORMER 1 CWA40C1030 43 TERMINAL BOARD - (3 PIN) 1 CWA28K1076 44 LEADWIRE-AIR TEMP. SENSOR 1 CWA67C5139 47 CONTROL BOARD COVER 1 CWH13C1100 48 ACCESSORY COMPLETE 1 CWH82C1270

48A HEATPROOF TUBE 1 CWG021025

51 WIRELESS REMOTE CONTROL COMPLETE 1 CWA75C2610

← ←

←

← ←

CWB30C1526

O O

(Note)

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

•

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

•

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

15.2. CZ-BT20E (Front Grille Complete)

REF. NO. PART DESCRIPTION QTY PART NO.

1 FRONT GRILLE - COMPLETE 1 CWE11C3105 2 FRONE - FRONT GRILLE CO. 1 CWE11C3353 4 A.S MOTOR DC SINGLE 12V 250 OHM 2 CWA981105 5 BRACKET - A.S.MOTOR 1 CWD932522 6 VANE 4 CWE241159 7 SHAFT 6 CWH631038 8 SHAFT 2 CWH631045

9 CONNECTOR - SHAFT 4 CWH081007 10 BEARING 6 CWH641008 11 LEAD WIRE - A.S.MOTOR 1 CWA67C5117 12 PLATE COVER FOR A.S.MOTOR 1 CWD911459 13 PLATE COVER FOR CONNECTING SHAFT 2 CWD911460 14 PLATE COVER FOR END SHAFT 1 CWD911461 21 ELECTRONIC CONT. (RECEIVER & INDICATOR) 1 CWA743610 22 LEAD WIRE - COMPLETE 1 CWA67C5576 24 INTAKE GRILLE 1 CWE221131 28 LEVER ARM 2 CWH651029 29 AIR FILTER 1 CWD001142

(Note)

• All parts are supplie d from PHAAM, Malaysia (Vendor Code: 061).

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

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

16 Exploded View (Outdoor Unit)

16.1. CU-E15DBE CU-E18DBE CU-E21DBE

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-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

17 Replacement Parts List (Outdoor Unit)

17.1. CU-E15DBE CU-E18DBE CU-E21DBE

REF NO. DESCRIPTION & NAME QTY. CU-E15DBE CU-E18DBE CU-E21DBE REMARKS

1 CHASSY ASSY 1 CWD50K2085 2 ANTI-VIBRATION BUSHING 3 CWH50077 3 COMPRESSOR 1 5CS130XAD04 4 NUT-COMPRESSOR MOUNT 3 CWH56000 5 SOUND PROOF MATERIAL 1 CWG302302 6 FAN MOTOR BRACKET 1 CWD541084 CWD541054 7 FAN MOTOR 1 CWA981166 8 SCREW - FAN MOTOR BRACKET 2 CWH551060

9 SCREW - FAN MOTOR MOUNT 3 CWH551106 10 PROPELLER FAN ASSY 1 CWH03K1016 11 NUT - PROPELLER FAN 1 CWH56053 12 CONDENSER 1 CWB32C1583 CWB32C1527 CWB32C1526 14 TUBE ASS’Y COMPLETE (CAP TUBE/EXP.VALVE) 1 CWT023679 15 4 WAYS VALVE 1 CWB001026 16 STRAINER 1 CWB11094 18 HOLDER - COUPLING 1 CWH351035 19 3 WAYS VALVE (GAS) 1 CWB011170 20 2 WAYS VALVE (LIQUID) 1 CWB021292 22 SOUND PROOF BOARD 1 CWH151050 23 TERMINAL COVER 1 CWH171001 24 NUT-TERMINAL COVER 1 CWH7080300 25 SENSOR COMPLETE (COMP. TOP) 1 CWA50C2185 26 HOLDER SENSOR 1 CWH321010 27 V-COIL COMPLETE (4-WAYS VALVE) 1 CWA43C2168 28 V-COIL COMPLETE (EXPAND VALVE) 1 CWA43C2141 29 SENSOR COMPLETE (COMP. DISC.) 1 CWA50C2180 30 SENSOR COMPLETE 1 CWA50C2181 31 REACTOR 1 CWA421069 32 CONTROL BOARD CASING (SIDE) 1 CWH102273 33 TERMINAL BOARD ASSY 1 CWA28K1110 34 FUSE HOLDERS 1 K3GB1PH00016 35 FUSE 1 K5D303BBA002 36 CONTROL BOARD CASING (TOP) 1 CWH102204 37 CONTROL BOARD CASING (BOTTOM) 1 CWH102282 38 ELECTRONIC CONTROLLER - MAIN 1 CWA73C1767R CWA73C1768R CWA73C1769R O 40 CONTROL BOARD COVER (TOP) 1 CWH131167 41 CABINET SIDE PLATE (LEFT) 1 CWE041082A 42 HANDLE 1 CWE161010 43 CABINET SIDE PLATE (RIGHT) 1 CWE041083A 44 HANDLE 2 CWE16000E 45 CABINET FRONT PLATE CO. 1 CWE06K1043 46 WIRE NET 1 CWD041041A 47 CABINET TOP PLATE 1 CWE031031A 48 CONTROL BOARD COVER (BOTTOM) 1 CWH131168 49 CONTROL BOARD COVER (TOP) 1 CWH131169A 50 OPERATING INSTRUCTION 1 CWF564379 51 OPERATING INSTRUCTION 1 CWF564380 52 INSTALLATION INSTRUCTION 1 CWF612604 53 INSTALLATION INSTRUCTION 1 CWF612605 54 INSTALLATION INSTRUCTION 1 CWF612606 56 DRAIN HOSE 1 CWH5850080 57 PACKING 1 CWB81012 58 SOUND PROOF MATERIAL 1 CWG302290 CWG302270 59 SOUND PROOF MATERIAL 1 CWG302301 CWG302300

← ←

←

← ←

←

← ←

CWT023610 O

CWB021306 O

←

(Note)

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

•

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

•

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

18 Electronic Circuit Diagram

18.1. Indoor Unit

CS-E15DB4EW CS-E18DB4EW CS-E21DB4ES

●

SCHEMATIC DIAGRAM 1/4

INDICATOR COMPLETE

IC201

HAJEM-A

(XH4)

CN-STM2

1 2 3

VERTICAL

Vout

Vcc

GND

R201

BZ201

4 3 2 1

1 2

4 5

R202

C201

47µF

C03

0.01µ

C28

0.01µ

C202

25V

SW201

Auto

D205POWER D204TIMER D203POWERFUL D202QUIET D201AIR SWING

R42

10k

R41

10k

SSR02 SSR01

15 14 13 12 11 10

IC07

B1HBGFF00005

R203

MAIN ELECTRONIC CONTROLLER

C25

100µ

16V

CN-DISP

9 8 7 6 5 4 3 2 1

1 2 3

5 6 7 8 9

CN-DISP

R03

C02

0.01µ

R35

10kΩ

R38

10kΩ

R34

10kΩ

R43

1 2 3 4 5 6 7

C20

0.01µ

R32

100kΩ

C32

0.01µ

S-TEST

C26

0.1µ

JP5

F-TEST

JP6

R14 5.1k

R11

SCK

C27

2.2µ 50V

JP7

R29

10k

C01

0.01µ

R12

10k

R04 360 R15 360 R16 360

RST

BUSY

IC02

IC06

C0EBH0000282

R37

10kΩ

JP8

R28

R22

R21

10k

C15

0.01µ

CN-STM1

1 2 3

VERTICAL

IC05

B1HBGFF00005

1 2

4 5

SCHEMATIC DIAGRAM 2/4

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

X01

C21

R30

150k

JP1

JP2

C22

1µ

JP3

JP4

SW01

High Static

Pressure

R18 360 R17 360

P16

T06

RXD

TXD

S1 S0

6 7

SCK

RESET Vdd

Vss

12 13

IC(VPP)

P90

P91

P92

P93

P94

P95

P40

RTP07

RTP06

C38

RTP05

C30

0.01µ

RTP04

RTP03

RTP02

Vss

R60

10kΩ

R13

10k

R48

R62 1kΩ

727374757677787980

P07

INTP5

INTP4

INTP3

IC01

UPD784956GC

INTP2

INTP1

NMI

INTP0

C34

0.047µ 25V

R46 10k

AVSS

AVREF

AN17

AN16

AN15

4.7k

10k

Q01

DTC114EK

AN14 AN13 AN12 AN11 AN10

ADVV

Vdd

Vss P37 P36 P35 P34 P33 P32 T01 T00 P67 P66 P65 P64

C35

0.1µ 25V

60 59 58 57 56 55 54 53 52

C23

1µ

R40

10k

48 47 46 45 44 43 42 41

P41

P42

P43

P44

P45

P46

P47

21 22 23 24 25 26 27 28 29

R09

10k

P50

R10

10k

P51

P52

P53

P54

Vss

P55

P56

P57

P60

P61

P62

37643863396240

3467356636

326933

R19

10k

P63

R20

10k

JX1

R27

C10

0.1µ

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

SCHEMATIC DIAGRAM 3/4

T01

A40C1030

C18

100µF

16V

CN-V2

IC03

ZNR01

511U

1 2

CN-T1

CN-T2

SSR02

FUSE01

T3.15A L 250V

SSR01

R61

IC04

C16 25V

22kΩ 1/4W

R69

12V

R05 22kΩ 1/4W

470µF

C19 L01

C33

C24

5.1kΩ

3300µF

C17

DB01

35V

DB03

C13

470µF

63V

R59

7.5Ω

C11

0.22µ

10W

DB02

C37 270µ 450V

R66 82kΩ 1/4W

R65

82Ω

1/4W

R64 82kΩ 1/4W

R63

82kΩ

1/4W

CR02

CR01

R54

R55 10k

DRAIN PUMP

TEST RUN

C31

0.01µ

R57

SW02

C29

1000p

C05

1µ

R33

15k

AIR

TEMP

SENSOR

(15k 3950)

R56

10k

C40

1000p

C04

1µ

CN-V1

B3PAA0000209 1

PC05

R26

6.2kΩ 1/4W

R23

6.2kΩ 1/4W

R02

R31

20k

R39

160

CN-TH2

FLOAT

CN-TH1

SENSOR

(20k 3950)

PIPE

TEMP

20kΩ

R36

B3PAA0000209

PC03

SCHEMATIC DIAGRAM 4/4

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

DRAIN

MOTOR

CN-DRMTR1

250VAC

C39

100p

R45

6.2k

ZD01

ZD02

DRAIN

MOTOR

R44

6.2k

R25

330k

A52LP421GR

R24

1.21k

CN-DRMTR2

C07

4700p

250VAC

C08

4700p

250VAC

C09

2200p

250VAC

D03

PC01

AC01(BLK)

G01 (GRN)

AC02 (WHT)

AC03 (RED)

R49 620

PC02

TLP421

R50

10k

Table 1

High Static Pressure

High

1 2

1 2 33

Table 2

Drain Pump Test Run SW SW02

Usual

SW01

OFF

Table 3

MIST Protection

Without Mist Protection

With Mist Protection

JX1

Jumper

None

R51

20k

R53

5.6k

R67

6.2kΩ 1/4W

R68

6.22kΩ 1/4W

0.22µ 630V

UNR211L

C14

Q03

2SD2531

ZD03

Q04

C06

1000p

C41

0.01µ

ZD04

R07

4.75k

R08

5.62k

Q02

C42

100µ

25V

R01 1kΩ

R06

10kΩ

C12

22µ

50V

R52

47k

B3PAAD000209

R47

7.5k

PC04

ZD05

C36

0.47µ 25V

1 2 3 4 5 6 7

CN-FM

1 2

AC-WHT

AC-BLK

FUSE

30A

ZNR3 ERZV10D102

ZNR2 ERZVEAV511

ZNR6 ERZVEAV511

DATA

ERA15-06

PC1

TLP421

(BL)

PC2

TLP421(GR)

RED

R11

R27 330k

R2 510k 1/4W

R1 510k 1/4W

ZD3

D12

ZD4

R15

1.21k 1%

ERA15-10

13k 2W

GD1

GRN

ZNR1

ERZVEAV511

ZNR4

ERZVEAV511

G08902N00D01

1.0µ

250V

C11

1.0µ

250V

C13

4700p

250V

C14

4700p

250V

C22

220µ

10V

RY-PWR

FUSE1

(T 3.15A L 250V)

PTC1

PTC2

CR1

RY-HOT

K6B1AGA00096

9.1k

1/4W

D5~D8

MA165TA5

CT1

ETQ19Z59BZ

REACTOR

GRY2

GRY1

R34

1.65k 1%

D10

MA165TA5

R33

698Ω

R32

100k

R89 10k

R97

2SC3852

R21

5.6k

R20

20k 1%

R26 47k

Q2 RT1N432

10k

4.7k

R29

680Ω

R93

100k

1/4W

R94

100k

1/4W

R95 100k 1/4W

LJP2LJP3

LJP4 LJP5

LJP6

LJP8

LJP9

LJP10

RY-C

R61

10k

R65

47Ω

Q5 2SC3441

2SA1366

R58

0.839Ωx2 5W+5W

R60 10Ω

R63

200Ω

C30

1500p

PC5

TLP421

PC4

TLP421

R70

470Ω

DB2 RBV-1506

DB1

Q3 IMRH50-60

C1 2200p 250V

4-WAYS

VALVE

RY-AC1

BLK HOT2

BLK HOT1

C20 22µ

100V

1.0µ

250V

R12

9.1k

1/4W

R16

9.1k

1/4W

R22

9.1k 1/4W

9.1k

1/4W

R13

9.1k

1/4W

R17

9.1k

1/4W

R23

9.1k 1/4W

C47

65µ

350V

C53 850µ 400V

C52 850µ 400V

JP2

JP1

JP3

JP4

R71

10k

ZD1

RD36EB1

ZD2

RD36EB1

C42

1000P

LJP7

LJP11

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

18.2. Outdoor Unit

CU-E15DBE CU-E18DBE CU-E21DBE

●

SCHEMATIC DIAGRAM 1/4

SCHEMATIC DIAGRAM 2/4

FUSE2

(T 3.15A L 250V)

R111

R114

464k

1/4W

R112

R115

464k

1/4W

R116

10.7k

R113

1/4W

11k

1/4W

ZNR5

R49

39k

1/4W

R53

39k

1/4W

R190

R46 39k

1/4W

R54 39k

1/4W

RY-C

7.5Ω 5W

DB3

D21

R47

39k

1/4W

R52

39k

1/4W

ZD5 RD10EB2

D14 ERA15-01

C56 56µ

450V

4 3

TLP620

CN-JP2

R69 33Ω

1/4W

2SC3441

PC3

R48 39k

1/4W

R51 39k

1/4W

D20 1A5-E 600V

C57

0.22µ 630V

C59

220P

2kV

ZD6

MAZ4047

C60 10µ 50V

2 1

C32

10µ

50V

AM01Z

STR-V152

D11

C33

1µ

10V

R80

100Ω

R79 10k

IC7

D22

0.047µ

R62

4.7k

C39

0.047µ 25V

R82

1.8k

C37

0.047µ 25V

R125

R122

0.1Ω

C115

C35 10µ

47k

IC4

IC3

0.82µ

3 2

C40

R83

1.8k

R128

47k

R136

4.7Ω

1/4W

C61

22µ

35V

C41

0.01µ

R126

C65

100Ω

R91

49.9k

R90

C43

0.01µ

C68

0.01µ 400V

D23

EG01Z

D25

AL01Z

C67

680P

R98

3.74k 1%

ET529AK7NLAC

C75

D16

374k 1%

IC4

Q11

4.7k

C45

1000p

R92

15k

D17

IC3

R99

15.0k 1%

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

EG01Z

D31

RL4Z

D28

EX16

D29

AL01Z

PC6

PC817E7

MM1431

R100

5 6

C48

0.01µ

10k

R101 100Ω

C44

0.82µ 50V

R102

3.74k

5 6

C49

0.01µ

D30

IC5

R107

3.74k 1%

R108

82.5k 1%

R141

R140

2.2k

R103

9.53k 1%

R104

51.5k 1%

L01

C88

680µ

16V

10k

R109

11.3k

R110

3.74k 1%

R144

27k

1000p

Q13

4.7k

C51

1000p

C54

0.01µ

C94

470µ

25V

C50

0.01µ

C55

R151

510

C96

470µ

10V

3900P

C89

0.1µ 16V

C85 50V

R154 1/4W

C98

470µ

25V

R159

1/4W

R147

1/4W

R148

R149

3.30k

R161 470Ω

18k 1%

R150 100Ω

R204

CN-JP1

R158

1 2

D33 D34

NJM78M05F

C100

0.01µ

2SC3052

R64

4.7k

C125

0.047µ

Q12 RT1N432

4.7k

10k

R160

IC6

D35

D36

C116 100µ

25V

C105

220µ

10V

1.5k

39k

0.01µ

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

SCHEMATIC DIAGRAM 3/4

C113

0.1µ

C117

0.1µ

C12

C15

3900p

C25

10µ

50V

C26

0.047 25V

SW1

3900p

R10

0.1µ 16V

D4CE35030002

R35

C19

R36

12.1k 18V

CN-CPU

R14

200k

R25

R203

C124

0.047µ

R199

R28

1µ

1k R30

10k C16

0.047µ 25V

R76 10k

R24

JX1

C18

0.01µ

0.047µ

C122

R68

R67

R38 47k

C21

0.1µ 16V

P70 P71

2 3

P72

P73 P74/IRQ00

P75/IRQ01

P76/IRQ02

P77/IRQ03

P80/ADIN00

P81/ADIN01

P82/ADIN10

P83/ADIN11

VSS

VREF-

P84/ADIN20

VREF+

VDD

P85/ADIN21

P86/ADIN22

P87/ADIN23

P90/ADIN24

P91/ADIN25

P92/ADIN26

P93/ADIN27

P94/ADIN28

R41

10k

R66 1k

D13

HRU0103A2

100

P61

P67/PNM15

P66/PNM14

P65/PNM13

P64/PNM12

P63/PNM11

P62/PNM10

P95/

ADIN29

P96/

ADIN30

P97/ADIN31

TEST3

TEST2

TEST1

R43 10k

R40

10k

VDD

26 27 28 29 30 31 32 33 34

9293949596979899

P60

P56/PWN02

P57/NPNM02

P55/NPNM01

IC1

MN103S52G

OSCO

OSCI

VSS

PVSS

P54/PNM01

P53/NPMM00

TCPOUT

PVDD

3987408641

378938

C23

10µ

50V

R75

R44

10k

VDD

P52/PMM10

P51/TM1080

VDD2

VOUT

42844383448245

C24

0.047µ 25V

VSS

VDD2

P50/TM1010

VDD

VDDLOVSS

VPP

P47/TM10B1

P46/FM10A1

P67/NRST

P10/IRQ04

468047794878497750

P44/

P43/

TM910

P42/TM9A1

P45/TM9B0

P41/TM8810

P40/TMA10 P37/TM710 P36/TM610 P35/TM510

P34/TM410

P33/TM310 P32/TM210 P31/TM110 P30/TM010

P27/SBI0

P26/SBT0

P25/SBO0

P24/SBI1

P23/SBT1

P22/SBO1

P21/SBT2 P20/SBT2

P17/SBO2

P11/IRQ05

P12/IRQ06

P13/IRQ07

R197

10k

TM9B1

VDD

VSS

P16 P15

P14/

IRQ08

R198

10k

75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51

100µ

R195

R196

10k

C27

6.3V

10k

C29

0.1µ 16V

C28

0.1µ 16V

C31

0.047µ 25V

R81 1kR84

R72

10k

DISCHARGE

SENSOR

(50kΩ 3950)

C112

C114 220µ

10V

TEMP.

0.1µ 16V

C119

0.047µ

4.99k 1%

10V

C2 1µ

R201

R200

C121

10µ

50V

C120

10µ 50V

CN-DIS

SENSOR

(4.96kΩ 3800)

C118

0.047µ

C111

10V

PIPE

TEMP.

C110

1µ

10V

1µ

3 21

R19

15.0k

R18

15.8k

CN-TH

OUTDOOR TEMP. SENSOR (15kΩ 3950)

R37

150k

C123

0.047µ

R202

C17 10V

CN-TANK

TANK TEMP. SENSOR (50kΩ 3950)

3 21

R/B

Vcc GND

ICX1

CN-STEST

R88 10k

R96 10k

CN-FTEST

R55

1k R56

470Ω

CN-NMODE

C36

0.01µ

R78 30k

C34

0.1µ 16V

R77

10k

C116 220µ

10V

R45

10k

CN-S

R50

R74 10k

IC2

BD4844G

C38

0.1µ 16V

R31

1µ

4.99k

SCHEMATIC DIAGRAM 44

D41

R117

332Ω

39.2k

0.047µ

R124

C62 10µ 50V

C63

25V

C69 16V

ZD7

R134

C72

1000p

R127

20k

R135

10k

R146

27.4k

C82

100µ

16V

C74

47µ 25V

IC8 TL3472

Q16 RT1N432

4.7k

R142

2.49k

R129

4.99k

R152

20k

C66

10k

R138

33Ω

D27

D26

D24

C70

47µ 25V

R132

4.99k

C97

0.1µ 16V

TD620W3AF

C73 47µ 25V

R137

39.2k

IC8 TL3472

C83 10µ 50V

Q18 RT1P432

IC11

C78

47µ

25V

R143

1.40k

7 6 5 4 3 2 1

C81

0.047µ

C76

0.047µ 25V

C71

0.047µ 25V

C87

470p

R162

5.11k

R163

5.11k

10 11 12 13 14 15 16

25V

C77

C99

0.022µ 25V

C101

0.022µ

25V

R164

RY-HOT

RY-ACL

RY-PWR

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

C106

0.47µ 630V

Q17

C90

0.047µ 25V

C84

1000p

C92

0.047µ 25V

C86

470p

C93

0.047µ 25V

C95

0.047µ 25V

C79

1000p x3

R167

82.5Ω C103

0.022µ 25V

C80

C91

0.047µ 25V

12 13

14 19 20 21 18

R168R169

3 4

HV1C1 2 1

7 8

6 5

R170R171

Vcc

IN(X) IN(Y)

IN(X)

VFO

GND

R172R173

Vcc IN

COM

HV1C2

Vcc IN

COM

HV1C3

Vcc IN

COM

LVIC

U OUT

V OUT

W OUT

R174R175

CF0

roc

R176R177

R178R179

R180R181

R182R183

R184R185

R186

R187

R192

R191

RED

BLUE

YELLOW

R194

R193

0.1Ω 2% 1/4W X20

Q19 RT1P432

10k

C102

10µ

R205

8.0Ω

R166 200k

R156

LED

C126

C104

10k

R118

R119

C58

1000P

4.7k

R123

10k

Q28

D37 D38 D39

IC10 TD620W3AF

4.7k

C107

0.022µ 630V

R189

C108

0.047µ 25V

HRD0103A2 X4

D40

C109

0.047µ 25V

CN-FM

1 2 3 4 5 6 7

CN-STM

6 5 4 3 2 1

EXPAND

COMPRESSOR

VALVE

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

How to use electronic circuit diagram

TIMER TABLE <INDOOR>

4 way valve abnormality 4 min. 24 sec. Outdoor air temp. for Hz No. decision 30 min. 0 sec. Anti-dew formation control 20 min. 0 sec. Anti-freezing control 6 min. 0 sec. Thermo OFF delay 3 min. 0 sec. Low pressure control (gas leakage) compressor OFF time 3 min. 0 sec. Time delay safety control 2 min. 58 sec. 0 sec.

Odour timer status shift time 90 sec. 0 sec.

Intake air temp. sampling time 2 min. 0 sec. Self diagnosis display time 10 sec. 0 sec. Auto mode judgement sampling time 20 sec. 0 sec. 24 hours Real Timer 1 hour 1 min. Heating SSHi fan speed shift 120 min. 12 sec. Cooling SHi fan speed shift 30 min. 3 sec. Hot start forced completion 4 min. 0.4 sec. Auto mode judgement interval 30 min. 3 sec. After Hot start / Deice 2 min. 12 sec.

Test mode

Name Time (When test point

Short-circuited)

20 sec.

120 sec.

TIMER TABLE <OUTDOOR>

DC PEAK 30 sec. 3 sec.

Deice detection 80 min. 16 sec.

Hz lock time 30 sec. 0 sec. Outdoor fan delay operation control 30 sec. 3 sec. 4 way valve delay operation control 3 min. 18 sec.

Test mode

Name Time (When test point

Short-circuited)

120 min. 24 sec.

40 min. 8 sec. 40 min. 8 sec.

18.3. Remote Control

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

18.4. Print Pattern Indoor Unit Printed Circuit Board

18.5. Print Pattern Outdoor Unit Printed Circuit Board View

CS-E15DB4EW CU-E15DBE / CS-E18DB4EW CU-E18DBE / CS-E21DB4ES CU-E21DBE

[PHAAM] Printed in Malaysia

Philips CS-E15DB4EW User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual