Panasonic CS-S18HKQ Service Manual

Indoor unit outdoor unit

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1 Safety Precautions----------------------------------------------- 3

2 Specifications ----------------------------------------------------- 5

2.1. CS-S18HKQ CU-S18HKQ ----------------------------- 5

2.2. CS-S24HKQ CU-S24HKQ ----------------------------- 7

3 Features ------------------------------------------------------------- 9

4 Location of Controls and Components ------------------10

4.1. Indoor Unit--------------------------------------------------10

4.2. Outdoor Unit -----------------------------------------------10

4.3. Remote Control -------------------------------------------10

5 Dimensions--------------------------------------------------------11

5.1. Indoor Unit-------------------------------------------------- 11

5.2. Outdoor Unit -----------------------------------------------12

6 Refrigeration Cycle Diagram --------------------------------13

7 Block Diagram----------------------------------------------------14

7.1. CS-S18HKQ CU-S18HKQ ----------------------------14

7.2. CS-S24HKQ CU-S24HKQ ----------------------------15

Indoor Unit Outdoor Unit

CS-S18HKQ CU-S18HKQ

CS-S24HKQ CU-S24HKQ

PAGE

8 Wiring Connection Diagram -------------------------------- 16

8.1. Indoor Unit ------------------------------------------------- 16

8.2. Outdoor Unit----------------------------------------------- 17

9 Electronic Circuit Diagram----------------------------------- 18

9.1. Indoor Unit ------------------------------------------------- 18

9.2. Outdoor Unit----------------------------------------------- 19

10 Printed Circuit Board ------------------------------------------ 20

10.1. Indoor Unit ------------------------------------------------- 20

10.2. Outdoor Unit----------------------------------------------- 23

11 Installation Instruction ---------------------------------------- 24

11.1. Select The Best Location ------------------------------ 24

11.2. Indoor/Outdoor Unit Installation Diagram ---------- 24

11.3. Indoor Unit ------------------------------------------------- 25

11.4. Outdoor Unit----------------------------------------------- 28

12 Operation Control----------------------------------------------- 30

12.1. Basic Function -------------------------------------------- 30

and distribution is a violation of law.

Order No. MAC0712077C3

Air Conditioner

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Page 1: Table Of Contents
11.4. Outdoor Unit----------------------------------------------- 28 7.1. CS-S18HKQ CU-S18HKQ ----------------------------14 12 Operation Control----------------------------------------------- 30 7.2. CS-S24HKQ CU-S24HKQ ----------------------------15 12.1. Basic Function -------------------------------------------- 30 © 2007 Panasonic HA Air-Conditioning (M) Sdn. Bhd. (11969-T). All rights reserved. Unauthorized copying and distribution is a violation of law.
Page 2 Indoor Fan Motor Removal Procedures ------ 49 16.2. Outdoor Electronic Controller Removal Procedure -------------------------------------------------- 53 17 Technical Data---------------------------------------------------- 54 17.1. Operation Characteristics ------------------------------ 54 18 Exploded View and Replacement Parts List ----------- 58 18.1. CS-S18HKQ CS-S24HKQ ---------------------------- 58 18.2. CU-S18HKQ CU-S24HKQ ---------------------------- 60...
Page 3: Safety Precautions
1 Safety Precautions • Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing. • Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model installed. •...
Page 4 1. 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. 2. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the furniture.
Page 5: Specifications
2 Specifications 2.1. CS-S18HKQ CU-S18HKQ ITEM UNIT INDOOR UNIT OUTDOOR UNIT Performance Test Condition 5.20 (0.90 ~ 6.00) Capacity BTU/h 17700 (3070 ~ 20500) kJ/h 18720 (3240 ~ 21600) 3.77 (3.75 ~ 3.57) BTU/hW 12.83 (12.79 ~ 12.20) kJ/hW 13.6 (13.5 ~ 12.9)
Page 6 Item Unit ø Single Power Source (Phase, Voltage, Cycle) 220 - 230 Input Power 1.38k (240 ~ 1.68k) Starting Current Running Current 6.4 - 6.3 Maximum current Power Factor 98 - 95 Power factor means total figure of compressor, indoor fan motor and outdoor fan motor. Number of core 3 (1.5) Power Cord...
Page 7: Cs-S24Hkq Cu-S24Hkq
2.2. CS-S24HKQ CU-S24HKQ ITEM UNIT INDOOR UNIT OUTDOOR UNIT Performance Test Condition 6.00 (0.90 ~ 7.10) Capacity BTU/h 20500 (3070 ~ 24200) kJ/h 21600 (3240 ~ 25560) 3.64 (2.90 ~ 3.55) BTU/hW 12.42 (9.90 ~ 12.10) kJ/hW 13.1 (10.5 ~ 12.8) dB (A) High: 46, Low: 37, Q-Lo: 34 High: 49 - 50...
Page 8 Item Unit ø Single Power Source (Phase, Voltage, Cycle) 220 - 230 Input Power 1.65k (310 - 2.00k) Starting Current Running Current 7.7 - 7.4 Maximum current 10.0 Power Factor 97 - 97 Power factor means total figure of compressor, indoor fan motor and outdoor fan motor. Number of core 3 (2.5) Power Cord...
Page 9: Features
3 Features • Inverter Technology - Wider output power range - Energy saving - Quick Cooling - More precise temperature control • E-ion Air Purifying System with Patrol Sensor - Active e-ions are released to catch dust particles and bring them back the large positively charged filter - Patrol Sensor color changes to indicate the dirt level in the air •...
Page 10: Location Of Controls And Components
4 Location of Controls and Components 4.1. Indoor Unit 4.2. Outdoor Unit 4.3. Remote Control...
Page 11: Dimensions
5 Dimensions 5.1. Indoor Unit...
Page 12: Outdoor Unit
5.2. Outdoor Unit...
Page 13: Refrigeration Cycle Diagram
6 Refrigeration Cycle Diagram Piping size Min. Piping Rated Length Max. Max. Piping Additional Model Length (m) Elevation (m) Length (m) Refrigerant (g/m) Liquid S18HKQ 1/2” 1/4” S24HKQ 5/8” 1/4” If piping length is over rated length, additional refrigerant should be added as shown in the table.
Page 14: Block Diagram
7 Block Diagram 7.1. CS-S18HKQ CU-S18HKQ...
Page 15: Cs-S24Hkq Cu-S24Hkq
7.2. CS-S24HKQ CU-S24HKQ...
Page 16: Wiring Connection Diagram
8 Wiring Connection Diagram 8.1. Indoor Unit 8.1.1. CS-S18HKQ CS-S24HKQ...
Page 17: Outdoor Unit
8.2. Outdoor Unit 8.2.1. CU-S18HKQ CU-S24HKQ...
Page 18: Electronic Circuit Diagram
9 Electronic Circuit Diagram 9.1. Indoor Unit 9.1.1. CS-S18HKQ CS-S24HKQ...
Page 19: Outdoor Unit
9.2. Outdoor Unit 9.2.1. CU-S18HKQ CU-S24HKQ...
Page 20: Printed Circuit Board
10 Printed Circuit Board 10.1. Indoor Unit 10.1.1. Main Printed Circuit Board...
Page 21 10.1.2. Power Printed Circuit Board 10.1.2.1. CS-S18HKQ CS-S24HKQ...
Page 22 10.1.3. Indicator Printed Circuit Board 10.1.4. Patrol Printed Circuit Board...
Page 23: Outdoor Unit
10.2. Outdoor Unit 10.2.1. Main Printed Circuit Board 10.2.1.1. CU-S18HKQ CU-S24HKQ...
Page 24: Installation Instruction
11 Installation Instruction 11.1. Select The Best Location 11.2. Indoor/Outdoor Unit INDOOR UNIT Installation Diagram • There should not be any heat source or steam near the unit. • There should not be any obstacles blocking the air circulation. • A place where air circulation in the room is good. •...
Page 25: Indoor Unit
11.3. Indoor Unit 11.3.1. HOW TO FIX INSTALLATION PLATE 11.3.2. TO DRILL A HOLE IN THE WALL The mounting wall is strong and solid enough to prevent it from INSTALL SLEEVE the vibration. PIPING 1. Insert the piping sleeve to the hole. 2.
Page 26 3. For the embedded piping (This can be used for left rear piping and left bottom piping also.)
Page 27 11.3.4. CONNECT THE CABLE TO THE INDOOR UNIT 1. The inside and outside connecting cable can be connected without removing the front grille. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 (S18HKQ/ 24HKQ) 2.5 mm flexible cord, type designation 245 IEC 57 or heavier cord.
Page 28: Outdoor Unit
11.4. Outdoor Unit 11.4.1. 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.
Page 29 11.4.3. 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 side of a charging set and the service port of the 3-way valve. •...
Page 30: Operation Control
12 Operation Control 12.1. Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting.
Page 31: Indoor Fan Motor Operation
12.2. Indoor Fan Motor Operation A. Basic Rotation Speed (rpm) i. Manual Fan Speed • Fan motor’s number of rotation is determined according to remote control setting. Remote Control Tab (rpm) ii. Auto Fan Speed • According to room temperature and setting temperature, indoor fan speed is determined automatically. •...
Page 32: Airflow Direction
12.4. Airflow Direction 1. There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes). 2. Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchanger temperature and intake air temperature) and manual (angles of direction can be adjusted using remote control).
Page 33: Quiet Operation (Cooling Mode/Cooling Area Of Dry Mode)
12.5. 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.
Page 34: Auto Restart Control
12.8. 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.
Page 35 • Patrol operation stops condition (when any of the following condition is fulfilled): - When “OFF/ON” button is pressed. - During any operation with Patrol, “Patrol” button is pressed again. - When “e-ion” button is pressed. - When OFF Timer activates. •...
Page 36 - Indoor Fan Control During any operation mode combines with Patrol operation, fan speed follows respective operation mode. During Patrol individual operation if e-ion starts, only Auto Fan Speed and no Powerful operation is allowed. Even if “Fan Speed” button is pressed, no signal is sent to air conditioner, and no change on LCD display. During Patrol individual operation if e-ion stops, Indoor Fan stop operation.
Page 37: E-Ion Operation
12.11. e-ion Operation • This operation provides clean air by producing negative ions to attract dust captured at the positively charged active e-ion filters. • e-ion operation start condition - During unit running at any operation mode, if “e-ion” button is pressed, combination operation (operation mode + e-ion operation) starts.
Page 38 • Indicator - When e-ion operation starts, e-ion indicator ON. • Remote Control Receiving Sound - Normal Operation e-ion Operation : Beep - e-ion Operation Normal Operation : Beep - Stop e-ion individual Operation : Beep - e-ion individual Operation Stop : Long Beep •...
Page 39 - Active e-ion Air Purifying system breakdown error: Judgment Method • When hi-feedback voltage (at microcontroller) supplied to filter during e-ion stop, active e-ion Air Purifying system breakdown error shows immediately. • It is due to indoor PCB or filter’s high voltage power supply damage. •...
Page 40: Protection Control
13 Protection Control 13.1. Restart Control (Time Delay Safety Control) • The Compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing OFF/ON button at remote control within this period. •...
Page 41: Compressor Overheating Prevention Control
13.5. Compressor Overheating Prevention Control • Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below. • If compressor discharge temperature exceeds 110 C, compressor will be stopped, occurs 4 times per 20 minutes, timer LED will be blinking.
Page 42: Outdoor Air Temperature Control
13.10. 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 1 minute after the compressor starts. • Compressor frequency will adjust base on Outdoor Air Temperature. 13.11.
Page 43: Servicing Mode
14 Servicing Mode 14.1. Auto OFF/ON Button 1. AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto OFF/ON button is pressed. This operation can be used to operate air conditioner with limited function if remote control is misplaced or malfunction. 2.
Page 44: Remote Control Button
Remote Control Printed Circuit Board Jumper A (J-A) Jumper B (J-B) Remote Control No. Short Open A (Default) Open Open Short Short Open Short • During Remote Control Number Switch Mode, press any button at remote control to transmit and store the desired transmission code to the EEPROM.
Page 45: Troubleshooting Guide
15 Troubleshooting Guide 15.1. Refrigeration Cycle System In order to diagnose malfunctions, ensure the air conditioner is free from 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 on the right.
Page 46 15.1.1. Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Condition of the air Electric current during Low Pressure High Pressure conditioner operating Insufficient refrigerant (gas leakage) Clogged capillary tube or Strainer Short circuit in the indoor unit Heat radiation deficiency of the outdoor unit...
Page 47: Breakdown Self Diagnosis Function
15.2. Breakdown Self Diagnosis Function 15.2.1. Self Diagnosis Function (Three Digits Alphanumeric Code) • Once abnormality has occurred during operation, the unit 7. The breakdown diagnosis mode will be canceled unless will stop its operation, and Timer LED blinks. pressing the CHECK button continuously for 5 seconds or •...
Page 48: Error Codes Table
15.3. Error Codes Table Diagnosis Abnormality Emergency Primary location to verify Abnormality / Protection control display Judgement operation No abnormality detected — Normal operation Indoor / outdoor abnormal > 1 min after starting Indoor fan operation • Internal / external cable connections communication operation only...
Page 49: Disassembly And Assembly Instructions
16 Disassembly and Assembly Instructions High voltages are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 16.1. Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 16.1.1.
Page 50 16.1.3. To remove discharge grille...
Page 51 16.1.4. To remove control board 16.1.5. To remove cross flow fan and indoor fan motor...
Page 53: Outdoor Electronic Controller Removal Procedure
16.2. Outdoor Electronic Controller Removal Procedure Caution! When handling electronic controller, be careful of electrostatic discharge. 1. Remove the 3 screws of the Top Panel. 5. Remove the Control Board as follows: Fig. 1 Fig. 4 2. Remove the 6 screws of the Front Panel. Fig.
Page 54: Technical Data
17 Technical Data 17.1. Operation Characteristics 17.1.1. CS-S18HKQ CU-S18HKQ...
Page 56 17.1.2. CS-S24HKQ CU-S24HKQ...
Page 58: Exploded View And Replacement Parts List
18 Exploded View and Replacement Parts List 18.1. CS-S18HKQ CS-S24HKQ 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.
Page 59 < Model : CS-S18HKQ CS-S24HKQ > REF NO. PART NAME & DESCRIPTION QTY. CS-S18HKQ CS-S24HKQ REMARKS CHASSY COMPLETE CWD50C1520 FAN MOTOR ARW61G8P30AC CROSS FLOW FAN COMPLETE CWH02C1010 SCREW - CROSS FLOW FAN CWH551146 BEARING ASS’Y CWH64K007 EVAPORATOR CWB30C2260 CWB30C2261 FLARE NUT CWT251030 (1/4”)
Page 60: Cu-S18Hkq Cu-S24Hkq
18.2. CU-S18HKQ CU-S24HKQ 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.
Page 61 < Model : CU-S18HKQ CU-S24HKQ > REF. NO. DESCRIPTION & NAME QTY. CU-S18HKQ CU-S24HKQ REMARKS CHASSY ASS’Y CWD50K2085 ANTI-VIBRATION BUSHING CWH50077 COMPRESSOR 5CS130XAD04 NUT-COMPRESSOR MOUNT CWH56000J SOUND PROOF MATERIAL CWG302302 FAN MOTOR BRACKET CWD541065 FAN MOTOR CWA951605 SCREW - FAN MOTOR BRACKET CWH551217 SCREW - FAN MOTOR MOUNT CWH555252J...

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Panasonic CS-S18HKQ Service Manual

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