Philips CS-E15DB4EW 8.1.9.1. Quiet operation (Heating)

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

Contents

Main CS-E15DB4EW CU-E15DBE CS-E18DB4EW CU-E18DBE CS-E21DB4ES CU-E21DBE Air Conditioner Page Page CONTENTS 1 Features 2 Functions 2.1. Remote Control Powerful Mode Operation Airflow Direction Control Quiet Mode Operation 2.2. Indoor Unit 2.3. Outdoor Unit 3.1. CS-E15DB4EW CU-E15DBE 3 Product Specifications Page 3.2. CS-E18DB4EW CU-E18DBE Page 3.3. CS-E21DB4ES CU-E21DBE Page Page Page Page Page Page 8 Operation Details 8.1. Basic Operation 8.1.1. Temperature Shifting Flow Page 8.1.5. Automatic Operation 8.1.6. Indoor Fan Motor Operation Page Page 8.1.7. Outdoor Fan Motor Operation 8.1.8. Airflow Direction 8.1.8.1. Vertical Airflow 8.1.9. Quiet operation (Cooling Mode/Cooling area of Dry Mode) 8.1.9.1. Quiet operation (Heating) 8.1.10. Powerful Mode Operation 8.1.11. 24-Hour Real Time Timer Control 8.1.12. Auto Restart Control 8.1.13. Indication Panel 8.1.14. Drain Pump Control Operation 8.2. Protection Control Features 8.2.1. Protection Control For All Operations 8.2.1.1. Time Delay Safety Control 8.2.1.2. 30 Seconds Forced Operation 8.2.1.3. Total Running Current Control 8.2.1.4. IPM (Power transistor) Prevention Control 8.2.1.5. Compressor Overheating Prevention Control 8.2.1.6. Low Pressure Prevention Control (Gas Leakage Detection) 8.2.1.7. Low Frequency Protection Control 1 8.2.1.8. Low Frequency Protection Control 2 Page 8.2.2.3. Anti-Freezing Control 8.2.2.4. Anti-Dew Formation Control Page Page Page Page Page Page Page Page Page Page 10 Installation And Servicing Air Conditioner Using R410A 10.1. Outline 10.1.1. About R410A Refrigerant 10.1.2. Safety Measures When Installing/Servicing Refrigerant Piping 10.2. Tools For Installing/Servicing Refrigerant Piping 10.2.1. Necessary Tools 10.2.2. R410A Tools Page 10.2.3. R410A Tools Which Are Usable for R22 Models 10.3. Refrigerant Piping Work 10.3.1. Piping Materials 10.3.2. Processing and Connecting Piping Materials 10.3.3. Storing and Managing Piping Materials 10.4. Installation, Transferring, Servicing 10.4.1. Inspecting Gas Leaks with a Vacuum Pump for New Installations (Using New Refrigerant Piping) 10.4.2. Transferring (Using New Refrigerant Piping) 10.4.3. AC Units Replacement (Using Existing Refrigerant Piping) 10.4.4. Refrigerant Compatibility (Using R410A Refrigerant in R22 ACs and Vice Versa) 10.4.5. Recharging Refrigerant During Servicing 10.4.6. Brazing 10.4.7. Servicing Tips 11 Installation Instructions 11.1. Safety Precautions CAUTION 11.2. Indoor Unit 11.2.1. SELECTING THE LOCATION FOR THE INDOOR UNIT Page 11.2.2. INSTALLATION OF INDOOR UNIT 11.2.3. REFRIGERANT PIPING 11.2.4. INDOOR UNIT DRAIN PIPING 11.2.5. HEAT INSULATION 11.2.6. CONNECTING THE CABLE TO THE INDOOR 11.2.7. INSTALLATION OF DECORATIVE PANEL Page 11.3. Outdoor Unit 11.3.3. CONNECTING THE PIPING 11.3.4. EVACUATION OF THE EQUIPMENT 11.3.5. CONNECT THE CABLE TO THE OUTDOOR UNIT 11.3.6. PIPE INSULATION Page 12 Servicing Information 12.1. Troubleshooting Page 12.2. Breakdown Self Diagnosis Function Error Codes Table 12.3. Remote Control 12.4. Auto OFF/ON Button 12.5. Disassembly of Parts Page Page Page Page Page 13.2. Sensible Capacity Chart CS-E15DB4EW CU-E15DBE CS-E18DB4EW CU-E18DBE CS-E21DB4ES CU-E21DBE Page Page Page 15 Replacement Parts List (Indoor Unit) 15.1. CS-E15DB4EW CS-E18DB4EW CS-E21DB4ES 15.2. CZ-BT20E (Front Grille Complete) Page 17 Replacement Parts List (Outdoor Unit) 17.1. CU-E15DBE CU-E18DBE CU-E21DBE 18.1. Indoor Unit 18 Electronic Circuit Diagram 5V CS-E15DB4EW CS-E18DB4EW CS-E21DB4ES INDICATOR COMPLETE MAIN ELECTRONIC CONTROLLER JP7 SCHEMATIC DIAGRAM 2/4 IC01 UPD784956GC c e 10k b SCHEMATIC DIAGRAM 3/4 12 SSR02 CR02 SSR01 SCHEMATIC DIAGRAM 4/4 18.2. Outdoor Unit CU-E15DBE CU-E18DBE CU-E21DBE JP3 JP1 SCHEMATIC DIAGRAM 1/4 SCHEMATIC DIAGRAM 2/4 RY-C SCHEMATIC DIAGRAM 3/4 IC1 MN103S52G SCHEMATIC DIAGRAM 44 COMPRESSOR R168R169 R170R171 R172R173 How to use electronic circuit diagram TIMER TABLE <INDOOR> TIMER TABLE <OUTDOOR>