1. Manuals
  2. Brands
  3. Fujitsu Manuals
  4. Air Conditioner
  5. AS*9LSACW
  6. Service instructions manual

Fujitsu AS*9LSACW Service Instructions Manual

Wall mounted type inverter
Hide thumbs
Table of Contents

Quick Links

SERVICE
INSTRUCTION
R410A
SPLIT TYPE
ROOM AIR CONDITIONER

WALL MOUNTED

INVERTER
Models
Indoor unit
AS*9LSACW
AS*12LSACW
AS*9LSBCW
AS*12LSBCW
AS*14LSBCW
AS*18LSBCW
type
Outdoor unit
AO*9LSAC
AO*12LSAC
AO*9LFBC
AO*12LFBC
AOY14LFBC
AO*18LFBC
Table of Contents
loading

Related Manuals for Fujitsu AS*9LSACW

Summary of Contents for Fujitsu AS*9LSACW

  • Page 1: Wall Mounted

    SPLIT TYPE ROOM AIR CONDITIONER WALL MOUNTED type INVERTER SERVICE INSTRUCTION Models Indoor unit Outdoor unit AS*9LSACW AO*9LSAC AO*12LSAC AS*12LSACW AO*9LFBC AS*9LSBCW AO*12LFBC AS*12LSBCW AS*14LSBCW AOY14LFBC AS*18LSBCW AO*18LFBC R410A...

  • Page 2: Table Of Contents

    CONTENTS 1. SPECIFICATION AS*9 / 12LSAC, AO*9 / 12LSAC..................01-01 AS*9 / 12LSBC, AO*9 / 12LFBC..................01-02 AS*14/ 18LSBC, AO*14 / 18LFBC..................01-03 2. DIMENSIONS AS*9 / 12LSAC, AO*9 / 12LSAC..................02-01 AS*9 / 12LSBC, AO*9 / 12LFBC..................02-02 AS*14 / 18LSBC, AO*14 / 18LFBC.................02-03 3.
  • Page 3 18. DEFROST OPERATION CONTROL................05-14 19. OFF DEFROST OPERATION CONTROL..............05-16 20. VARIOUS PROTECTIONS..................05-17 6. REFRIGERANT CAUTION -R410A- 1. R410A TOOLS......................06-01 2. PRECAUTION FOR INSTALLATION.................06-02 3. PRECAUTION FOR SERVICING................06-04 4. NEW REFRIGERANT R410A..................06-05 5. DEFFERENCE FROM CONVENTIONAL MODEL(R22) AND PRECAUTIONS..06-08 7. TROUBLE SHOOTING 1.
  • Page 4 R410A WALL MOUNTED type INVERTER 1 . SPECIFICATIONS...

  • Page 5: Specifications

    SPECIFICATIONS TYPE (COOL&HEAT INVERTER) (COOL&HEAT INVERTER) INDOOR UNIT AS*9LSACW AS*12LSACW OUTDOOR UNIT AO*9LSAC AO*12LSAC COOLING CAPACITY( ) : Range (kW) 2.6 (0.5~3.6) 3.5 (0.9~4.2) HEATING CAPACITY( ) : Range (kW) 3.6 (0.5~6.0) 4.8 (0.9~6.6) ELECTRICAL DATA POWER SOURCE FREQUENCY (Hz)
  • Page 6 SPECIFICATIONS TYPE COOL & HEAT INVERTER INDOOR UNIT AS*9LSBCW AS*12LSBCW OUTDOOR UNIT AO*9LFBC AO*12LFBC COOLING CAPACITY (kW) 2.60 3.50 HEATING CAPACITY (kW) 3.60 4.80 ELECTRICAL DATA POWER SOURCE FREQUENCY (Hz) COOLING RUNNING CURRENT HEATING COOLING 0.62 0.92 INPUT WATTS (kW) HEATING 0.82 1.23...
  • Page 7 SPECIFICATIONS TYPE COOL & HEAT INVERTER INDOOR UNIT AS*14LSBCW AS*18LSBCW AO*14LFBC AO*18LFBC OUTDOOR UNIT COOLING CAPACITY (kW) 4.20 5.20 HEATING CAPACITY (kW) 5.60 6.25 ELECTRICAL DATA POWER SOURCE FREQUENCY (Hz) COOLING RUNNING CURRENT HEATING COOLING 1.11 1.72 INPUT WATTS (kW) HEATING 1.45 1.73...

  • Page 8: Dimensions

    R410A WALL MOUNTED type INVERTER 2 . DIMENSIONS...

  • Page 9: As*9 / 12Lsac, Ao*9 / 12Lsac

    D I M E N S I O N S Models : AS*9LSACW / AO*9LSAC AS*12LSACW / AO*12LSAC 02-01...

  • Page 10: As*9 / 12Lsbc, Ao*9 / 12Lfbc

    D I M E N S I O N S (unit : mm) Models : AS*9LSBCW / AO*9LFBC AS*12LSBCW / AO*12LFBC 02-02...

  • Page 11: As*14 / 18Lsbc, Ao*14 / 18Lfbc

    D I M E N S I O N S (unit : mm) Models : AS*14LSBCW / AO*14LFBC AS*18LSBCW / AO*18LFBC 02-03...

  • Page 12: Refrigerant System Diagram

    R410A WALL MOUNTED type INVERTER 3 . REFRIGERANT SYSTEM DIAGRAM...
  • Page 13 R E F R I G E R A N T S Y S T E M D I A G R A M Models : AS*9LSACW / AO*9LSACW AS*12LSACW / AO*12LSACW Muffler (2 pass) Compressor 3way-valve 2way-valve Indoor heat exchanger...
  • Page 14 R E F R I G E R A N T S Y S T E M D I A G R A M Models : AS*9LSBCW / AO*9LFBC AS*12LSBCW / AO*12LFBC Heat exchanger 3-Way ( INDOOR ) valve Muffler 2-Way valve 4-Way valve...
  • Page 15 R E F R I G E R A N T S Y S T E M D I A G R A M Models : AS*14LSBCW / AO*14LFBC AS*18LSBCW / AO*18LFBC Heat exchanger 3-Way ( INDOOR ) valve Muffler 2-Way Sub-heat valve...

  • Page 16: Circuit Diagram

    R410A WALL MOUNTED type INVERTER 4 . CIRCUIT DIAGRAM...
  • Page 17 CIRCUIT DIAGRAM Models : AS*9LSACW / AO*9LSAC AS*12LSACW / AO*12LSAC INDOOR UNIT OUTDOOR UNIT Controller PCB Thermistor (discharge pipe) Thermistor (pipe) Thermistor (outdoor temp.) 04-01...
  • Page 18 CIRCUIT DIAGRAM Models : AS*9LSBCW / AO*9LFBC AS*12LSBCW / AO*12LFBC INDOOR UNIT Fan Motor Terminal Display Board Power Controller PCB Relay Power Thermistor Thermistor Stepping (room temp.) (pipe temp.) Motor OUTDOOR UNIT PCB (MAIN) Reactor Reactor Compressor Thermistor (Discharge Pipe) Fan Motor Thermistor (pipe) Thermistor (outdoor temp.)
  • Page 19 CIRCUIT DIAGRAM Models : AS*14LSBCW / AO*14LFBC AS*18LSBCW / AO*18LFBC INDOOR UNIT DISPLAY BOARD OUTDOOR UNIT 04-03...

  • Page 20: Description Of Each Control Operation

    R410A WALL MOUNTED type INVERTER 5 . DESCRIPTION OF EACH CONTROL OPERATION...

  • Page 21: Cooling Operation

    However, the maximum frequency is limited in the range shown in Figure 1 based on the fan speed mode and the outdoor temperature. ( Table 1 : Compressor Frequency Range ) minimum maximum maximum frequency frequency frequency AS*9LSACW 18Hz 60Hz 80Hz AS*12LSACW 18Hz 80Hz 96Hz AS*9LSBCW...

  • Page 22: Heating Operation

    However, the maximum frequency is limited in the range shown in Figure 2 based on the fan speed mode and the outdoor temperature. ( Table 2 : Compressor Frequency Range ) minimum maximum frequency frequency AS*9LSACW 18Hz 130Hz AS*12LSACW 18Hz 130Hz AS*9LSBCW...

  • Page 23: Dry Operation

    Table 3. However, after the compressor is driven, the indoor unit shall run at operation frequency of 58Hz, for a minute. ( Table 3 : Compressor frequency ) Operating frequency AS*9LSACW 33Hz AS*12LSACW 33Hz AS*9LSBCW...

  • Page 24: Auto Changeover Operation

    4. AUTO CHANGEOVER OPERATION When the air conditioner is set to the AUTO mode by remote cintrol, operation starts in the optimum mode from amoung the HEATING, COOLING, DRY and MONITORING modes. During operation, the optimum mode is automatically swiched in accordance with temperature changes. The temperature can be set between 18 C and 30 C in 1 C steps.

  • Page 25: Indoor Fan Control

    5. INDOOR FAN CONTROL (1).Fan speed ( Table 5 : Indoor Fan Speed ) AS*9LSACW AS*12LSACW Operation mode Air flow mode Speed (rpm) Operation mod e Air flow mode Speed (rpm) Heating 1420 Heating 1470 1420 1370 1290 1200 1110...
  • Page 26 (3).COOLING OPERATION Switch the airflow [AUTO], and the (Fig.6) indoor fan motor will run according airflow change - over ( Cooling:AUTO ) to a room temperature, as shown in When the room Figure 6. temperature rises On the other hand, if switched in HIGH mode [HIGH] [QUIET], the indoor motor...

  • Page 27: Outdoor Fan Control

    AC motor and DC motor. ( Table 6 : Type of Motor ) AC Motor DC Motor AS*9/12LSACW AS*9/12LSBCW AS*14/18LSBCW (2). Fan Speed ( Table 7 : AC Motor ) Cooling Heating AS*9LSACW 830rpm 830rpm 830rpm AS*12LSACW 820rpm 820rpm 820rpm AS*9LSBCW 840rpm 840rpm...

  • Page 28: Louver Control

    7. LOUVER CONTROL (1). VERTICAL LOUVER CONTROL (Function Range) Each time the button is pressed, the air direction range will change as follow: (Fig 9: Air Direction Range) (Operation Range) Cooling / Dry mode Heating mode Fan mode Use the air direction adjustments within the ranges shown above. The vertical airflow direction is set automatically as shown, in accordance with the type of operation selected.

  • Page 29: Compressor Control

    8. COMPRESSOR CONTROL (1). OPEARTION FREQUENCY RANGE The operation frequency of the compressor is different based on the operation mode as shown in the table 9. (Table 9 : Compressor Operation Frequency Range) Cooling Heating AS*9LSACW 18Hz 80Hz 18Hz 130Hz 33Hz AS*12LSACW...

  • Page 30: Timer Operation Control

    9. TIMER OPEARTION CONTROL The table 10 shows the available timer setting based on the product model. (Table 10 : Timer Setting) ON TIMER / OFF TIMER PROGRAM TIMER SLEEP TIMER AS*9LSACW AS*12LSACW AS*9LSBCW AS*12LSBCW AS*14LSBCW AS*18LSBCW (1). OPEARTION FREQUENCY RANGE OFF timer : When the clock reaches the set time, the air conditioner will be turned off.
  • Page 31 (3). SLEEP TIMER If the sleep is set, the room temperature is monitored and the operation is stopped automatically. If the operation mode or the set temperature is change after the sleep timer is set, the operation is continued according to the changed setting of the sleep timer from that time ON. In the cooling operation mode When the sleep timer is set, the setting temperature is increased 1 degC.

  • Page 32: Electronic Expansion Valve Control

    10. ELECTRONIC EXPANSION VALVE CONTROL The most proper opening of the electronic expansion valve is calculated and controlled under the present operating condition based on the following values. The compressor frequency, the temperatures detected by the discharge temperature sensor, the indoor heat exchanger sensor, the outdoor heat exchanger sensor, and the outdoor temperature sensor.

  • Page 33: Manual Auto Operation (Indoor Unit Body Operation)

    (By heating the compressor, warm air is quickly discharged when operation is started.) When operation was started, and when the outdoor temperature rises to temperature or greater, preheating is ended. (Table 13 : Preheating Operation / Release Temperature) Temperature Temperature AS*9LSACW AS*12LSACW AS*9LSBCW AS*12LSBCW AS*14LSBCW AS*18LSBCW 17.

  • Page 34: Defrost Operation Control

    (Table 15 : Condition of starting Defrost Operation) Compressor operating time time defrosting Less than 20 minutes 20 to 60 minutes 60 minutes to 4 hours After 4 hours after starting AS*9LSACW - 9 C - 5 C - 3 C operation AS*12LSACW...
  • Page 35 Defrost Flow Chart The defrosting shall proceed by the integrating operation time and outdoor heat exchanger temperature as follows. Heating operation start : Compressor ON (Not defrosted for 10 minutes) (In case of 1st defrost) (In case of 2nd and later defrost) Compressor integrating Compressor integrating Compressor integrating...

  • Page 36: Off Defrost Operation Control

    30 minutes. (2). OFF DEFROST END CONDITION Release Condition Outdoor heat exchanger temperature sensor value is higher than 10degC or AS*9LSACW Compressor operation time has passed 15 minutes. Outdoor heat exchanger temperature sensor value is higher than 10degC or AS*12LSACW Compressor operation time has passed 15 minutes.

  • Page 37: Various Protections

    When the discharge temperature becomes higher than Temperature ,the compressor is stopped and the indoor unit LED starts blinking. (Table 17 : Discharge Temperature Over Rise Prevension Control / Release Temperature) Temperature Temperature Temperature AS*9LSACW 104 C 101 C 110 C AS*12LSACW 104 C 101 C...
  • Page 38 The compressor frequency is decrease on cooling & dry mode when the indoor heat exchanger temperature sensor detects the temperature lower than Temperature . Then, the anti-freezing control is released when it becomes higher than Temperature . (Table 19 : Anti-freezing Protection Operation / Release Temperature) Temperature Temperature AS*9LSACW AS*12LSACW AS*9LSBCW AS*12LSBCW AS*14LSBCW AS*18LSBCW (4).
  • Page 39 Refer to below Temperature Fan Hi Other than Hi Temp Temp Temp Temp Temperature The frequency increase every AS*9LSACW 52 C 48 C 54 C 50 C 60 seconds gradually. AS*12LSACW 52 C 48 C 54 C 50 C It returns to the normal operation after 5 minutes.

  • Page 40: Refrigerant Caution -R410A

    R410A WALL MOUNTED type INVERTER 6 . REFRIGERANT CAUTION -R410A-...

  • Page 41: R410A Tools

    1. R410A TOOLS This air conditioner used R410A. TOOLS AND EQUIPMENT (R410A) For installation and servicing, it is necessary to prepare the tools and machines that are different from the previous refrigerant. Mark shows the exclusive use for R410A. Gauge manifold ..... (Fig.4-1) The specification of the gauge is different due to higher pressure.

  • Page 42: Precaution For Installation

    2. PRECAUTION FOR INSTALLATION Precaution for installation Selection of pipe Pipe thickness Outer diameter Thickness 1/4” (6.35mm) 0.8 mm 3/8” (9.52mm) 0.8 mm 1/2 ” (12.7mm) 0.8 mm Be sure to use this pipe thickness and over for countermeasure against higher pressure.

  • Page 43: Refrigerant Charge

    Be careful not to mix moisture and contamination into the pipe Moisture contamination in the pipe is a cause of trouble. Air purge Always use a vacuum pump to purge air. Refrigerant charge Don't charge from the phase side. Do it always from the liquid phase side.

  • Page 44: Precaution For Servicing

    3. PRECAUTION FOR SERVICING Feature 1 Refrigerant oil is different from before. Precaution on Tools Refrigerant oil for Different point from New Refrigerant previous one Use the gauge manifold and charge hose Synthetic oil Absorbent character for New Refrigerant(HFC), which shall is high.

  • Page 45: New Refrigerant R410A

    4. NEW REFRIGERANT R410A What is HFC ? Phase-out schedule of HCFC according to Montreal protocol (HCFC consumption of 1989) + 100% = (CFC consumption of 1989) x 2.8% total abolition only service use started control 0.5% 1996 2000 2004 2010 2015 2020...

  • Page 48: Defference From Conventional Model(R22) And Precautions

    5. DEFFERENCE FROM CONVENTIONAL MODEL (R22) AND PRECAUTIONS • Use new synthetic oils such as ester because HFC series refrigerant has less solubility with mineral oils conventionally used for R22. • As these new synthetic oils are easily influenced by moisture and dusts, they must be treated more care- fully than the conventional lubricating oils.

  • Page 49: Trouble Shooting

    R410A WALL MOUNTED type INVERTER 7 . TROUBLE SHOOTING 1. When the unit does not operate at all (Operation lamp and Timer lamp do not light up) 2. Self Diagnosis Function (Either Operation lamp or Timer lamp is blinking) * How to operate the self-diagnosis function * Self- diagnosis table and Check points 3.
  • Page 50 Does not operate at all (Operation Lamp and Timer Lamp do not light up) [Check Point] (1) Is the input power voltage from the exclusive circuit AC outlet normal? (2) Is the AC plug inserted to the AC outlet securely and not loose? (3) Check if each connector is inserted securely.

  • Page 51: Self Diagnosis Function

    SELF-DIAGNOSIS FUNCTION This function memorizes the self-diagnosis function (lamp display) in the in door control P.C.Board when trouble occurs. (The memory contents are not destroyed even when the power cord is unplugged from the AC outlet.) The self-diagnosis function (lamp display) can also be switched between major classification display and minor classification display and precise diagnosis can be made.

  • Page 52: Self-Diagnosis Function And Checking Points

    Self - diagnosis function and Checking points Large Division Error Small Division Error Indication Indication Large Div. Small Div. Contents Diagnosis Method Contents (Protection) Operation Timer Opera Timer tion 1 sec. Transmission 0.5 sec Serial reverse transfer At the start up, the indoor unit does not receive the signal for 10 consecutive seconds from the time when the blinking Error sec.
  • Page 53 0.5 sec 0.1 sec. Indoor Unit 0.5 sec Room temperature The room temperature thermistor detected a abnormal temperature when the power was turned on. 2 times blinking Thermistor sec. 2 times thermistor defective > Remote control does not operate. Error blinki [Diagnosis Point] - Check Thermistor resistance value (Refer to “Thermistor characteristics table”).
  • Page 54 0.5 sec Main Relay Error After 2 minutes 20 seconds of stopping operation, the signal from outdoor unit is received even though the main sec. 3 times relay is OFF. blinki > Main Relay OFF continues (Outdoor Unit OFF Command) [Diagnosis Point] - Main Relay defective - Controller PCB defective.
  • Page 55 0.5 sec 0.1 sec. Indoor 0.5 sec Indoor Fan Lock Error The indoor fan speed is 0 rpm after 56 seconds from starting operation or from the time the fan mode was 6 times blinking Motor Error sec. 2 times changed.
  • Page 56 0.5 sec PFC Circuit Error Excessive voltage of DC voltage on PFC circuit in Inverter PCB is detected, or the excessive current in the circuit sec. 4 times is detected. > Permanent stop. blinki [Diagnosis Point] - Controller PCB defective (Refer to after mentioned “PFC circuit diagnosis”).

  • Page 57: Serial Signal Diagnosis

    Serial Signal Diagnosis [Check Point] Check and find out if the cause is at Indoor unit or Outdoor unit. * Remove the side cover of Outdoor unit for testing the Outdoor unit connection terminals with a meter. * Turn on the power and press [TEST] button of Remote control. [Checking Flow Chart] CAUTION: Do not touch the terminals or electrical components to avoid electric shock.

  • Page 58: Ipm Protection

    IPM Protection [Checking Points] Check the following points and locae the cause in the outdoor unit. [Cause]  (1) Compressor failure  (2) Refrigeration cycle failure  (3) PC Board defective  (4) IPM defective  (5) Incorrect wiring [First step] Measure the DC voltage at terminals (between Electrolytic Capacitor and discharge resistance) in the Inverter Controller Assy, and make sure it is lower than DC5V.

  • Page 59: Active Filter Failure

    Active Filter Failure [Checking points] Check the following points and locae the cause in the outdoor unit. [Cause] (1) Incorrect wiring (2) Active Filter Module defective (3) PC Board defective (4) DC voltage detectiion circuit defective [First Step]  Measure the DC voltage at terminals (between Electrolytic Capacitor and discharge resistance) in the Inverter Controller Assy, and make sure it is lower than DC5V.

  • Page 60: Trouble Shooting Of Refrigerant Cycle

    Trouble Shooting of Refrigerant Cycle [Diagnosis Table for Defective Component] : Item of most possible cause Cooling High Compressor Discharge IPM Protection Pressure Location error Temperature Error Protection Refrigerant leak Compressor failure(*) EEV failure (*) Thermistor failure (*) (*) Trouble Shooting Method (1) Checking method of the compressor failure Insert the AC plug and start up the cooling operation.

  • Page 61: Appending Data

    R410A WALL MOUNTED type INVERTER 8 . APPENDING DATA 1. Jumper setting of Indoor unit and Outdoor unit 2. Outdoor unit Pressure Value and Total Electric Current Curve 3. Thermistor Resistance Values...
  • Page 62 JP (Jumper) Setting [Indoor Unit] AS*9/12LSACW AS*9/12LSBCW AS*14/18LSBCW Remote control custom code When multiple number of indoor units are installed in the same room, erroneous receipt of the signal can be avoided by setting up the remote control custom code separately. To set up the remote control custom code, always set up the same code on both indoor unit PCB and remote control PCB.
  • Page 63 Outdoor Unit Low Pressure Value and Outdoor Total Electric Current Curve (Cooling) Model Name : AS*9LSACW, AS*12LSACW [Condition] Ambient Indoor / Outdoor - Same temperature temperature Refrigerant Standard amount amount Piping 7.5m (Height difference 1m) length Power 50Hz - 230V...
  • Page 64 Outdoor Unit High Pressure Value and Outdoor Total Electric Current Curve (Heating) Model Name : AS*9LSACW, AS*12LSACW [Condition] Ambient Indoor 15 - 23degC, Outdoor 2 - 12degC temperature Refrigerant Standard amount amount Piping 7.5m (Height difference 1m) length Power 50Hz - 230V...
  • Page 65 Outdoor Unit Low Pressure Value and Outdoor Total Electric Current Curve (Cooling) Model Name : AS*9LSBCW, AS*12LSBCW [Condition] Ambient Indoor / Outdoor - Same temperature temperature Refrigerant Standard amount amount Piping 7.5m (Height difference 1m) length Power 50Hz - 230V voltage Operation TEST mode (Cooling), Hi Fan, Horizontal direction, Front air flow...
  • Page 66 Outdoor Unit High Pressure Value and Outdoor Total Electric Current Curve (Heating) Model Name : AS*9LSBCW, AS*12LSBCW [Condition] Ambient Indoor 15 - 23degC, Outdoor 2 - 12degC temperature Refrigerant Standard amount amount Piping 7.5m (Height difference 1m) length Power 50Hz - 230V voltage Operation TEST mode (Heating), Hi Fan, Lower direction, Front air flow...
  • Page 67 Outdoor Unit Low Pressure Value and Outdoor Total Electric Current Curve (Cooling) Model Name : AS*14LSBCW, AS*18LSBCW [Condition] Ambient Indoor / Outdoor - Same temperature temperature Refrigerant Standard amount amount Piping 7.5m (Height difference 1m) length Power 50Hz - 230V voltage Operation TEST mode (Cooling), Hi Fan, Horizontal direction, Front air flow...
  • Page 68 Outdoor Unit High Pressure Value and Outdoor Total Electric Current Curve (Heating) Model Name : AS*14LSBCW, AS*18LSBCW [Condition] Ambient Indoor 15 - 23degC, Outdoor 2 - 12degC temperature Refrigerant Standard amount amount Piping 7.5m (Height difference 1m) length Power 50Hz - 230V voltage Operation TEST mode (Heating), Hi Fan, Lower direction, Front air flow...
  • Page 69 Thermistor resistance values Room temperature thermistor Characteristics of room temperature thermistor Indoor heat exchanger thermistor 40.00 Temp ( C) Resistance(k ) Voltage(V) Temp ( C) Resistance(k ) Voltage(V) 35.00 0.00 33.62 1.15 0.00 176.03 1.10 30.00 5.00 25.93 1.39 5.00 134.23 1.36 25.00...
  • Page 70 R410A WALL MOUNTED type INVERTER 9 . INSTALLATION MANUAL...

  • Page 71: Installation Manual

    SPLIT TYPE ROOM AIR CONDITIONER INSTALLATION MANUAL (PART NO. 9312557011-01) AS*9/12LSAC This air conditioner uses new refrigerant HFC (R410A). The basic installation work procedures are the same as conventional refrigerant (R22) models. However, pay careful attention to the following points: (1) Since the working pressure is 1.6 times higher than that of conventional refrigerant(R22) models, some of the piping and installation and service tools are special.(See the table below.) Especially, when replacing a conventional refrigerant(R22) model with a new refrigerant R410A...
  • Page 72 SELECTING THE MOUNTING INSTALLATION DIAGRAM OF POSITION INDOOR AND OUTDOOR UNITS Decide the mounting position with the customer as follows: 1. INDOOR UNIT Fig. 2 (1) Install the indoor unit level on a strong wall which is not subject to vibration.

  • Page 73: For Authorized Service Personnel Only

    For authorized service personnel only. WARNING (1) For the room air conditioner to operate satisfactory, install it as outlined in this installation manual. (2) Connect the indoor unit and outdoor unit with the air conditioner piping and cords available standards parts. This installation manual describes the correct connections using the standard accessories and the parts specified in this installation manual.

  • Page 74: Outdoor Unit Installation

    OUTDOOR UNIT OUTDOOR UNIT INSTALLATION WARNING Set the unit on a strong stand, such as one made of concrete blocks (1) Install the unit where it will not be tilted by more to minimize shock and vibration. Do not set the unit directly on the ground because it will cause trou- than 5°.

  • Page 75: Cutting The Hole In The Wall For The Connecting Piping

    INDOOR UNIT CUTTING THE HOLE IN THE WALL FOR THE CONNECTING PIPING Fig. 4 (1) Cut a 65 mm diameter hole in the wall at the position shown in (Fig. Center mark (2) When cutting the wall hole at the inside of the installation frame, cut the hole within the range of the left and right center marks 40 mm below the installation frame.

  • Page 76: Installing The Indoor Unit

    For left piping and left rear piping, align the marks on the wall hook Fig. 7 bracket and shape the connection pipe. Bend the connection piping at the bend radius of 70 mm or more and install no more than 35 mm from the wall. Connection pipe (6.35 mm dia.) After passing the indoor piping and drain hose through the wall hole,...

  • Page 77: Outdoor Unit Wiring

    OUTDOOR UNIT WIRING (1) Remove the outdoor unit connector cover. (5) Fasten the sheath with a cord clamp. (2) Remove the control box cover. (6) Install the control box cover. (3) Bend the end of the cord as shown in the figure. (7) Install the connector cover.

  • Page 78: Front Panel Removal And Installation

    FRONT PANEL REMOVAL AND INSTALLATION THE OPEN PANEL Open Panel Fig. 16 (1) Pull the Open Panel to 90° ahead of you, then open it. Mounting (2) Pull down the knob. Hinge Shaft hole (3) Lift the intake grille upward. THE OPEN PANEL INSTALLATION (1) Pull the Open Panel to 90°...
  • Page 79 SPLIT TYPE ROOM AIR CONDITIONER For authorized service personnel only. INSTALLATION MANUAL WARNING (1) For the room air conditioner to operate satisfactory, install it as outlined in this installation manual. (2) Connect the indoor unit and outdoor unit with the air conditioner piping and cords available standards parts. This (PART NO.
  • Page 80 INDOOR UNIT For left piping and left rear piping, align the marks on the wall hook Fig. 9 bracket and shape the connection pipe. CUTTING THE HOLE IN THE WALL FOR THE CONNECTING PIPING Bend the connection piping at the bend radius of 70 mm or more and Connection pipe install no more than 35 mm from the wall.
  • Page 81 SPLIT TYPE ROOM AIR CONDITIONER For authorized service personnel only. INSTALLATION MANUAL WARNING (1) For the room air conditioner to operate satisfactory, install it as outlined in this installation manual. (2) Connect the indoor unit and outdoor unit with the air conditioner piping and cords available standards parts. This (PART NO.
  • Page 82 INDOOR UNIT For left piping and left rear piping, align the marks on the wall hook Fig. 9 bracket and shape the connection pipe. CUTTING THE HOLE IN THE WALL FOR THE CONNECTING PIPING Bend the connection piping at the bend radius of 70 mm or more and Connection pipe install no more than 35 mm from the wall.
  • Page 83 1116, Suenaga, Takatsu-ku, Kawasaki 213-8502, Japan March 2005 Printed in Japan GS17032005...

This manual is also suitable for:

As*12lsacwAs*14lsbcwAs*18lsbcwAo*9lsacAo*12lsacAs*9lsbcw ... Show all

Table of Contents