Ras-10jkvp-e manual

The indoor unit controller judges the operation commands from the remote controller and assumes the following functions. TA sensor. Role of outdoor unit controller. Receiving the operation command signal Serial signal from the indoor unit controller, the outdoor unit performs its role. Contents of operation command signal Serial signal from indoor unit controller to outdoor unit controller.

Contents of operation command signal Serial signal from outdoor unit controller to indoor unit controller. For transferring of these signals, the indoor unit controller monitors the contents of signals, and judges existence of trouble occurrence.

When no signal is received from the outdoor unit controller, it is assumed as a trouble. Basic operation Operation control AUTO operation DRY operation Indoor fan motor control Outdoor fan motor control Capacity control Current release control Release protective control by temperature of indoor heat exchanger Defrost control Only in heating operation Louver control ECO operation Temporary operation Discharge temperature control Pulse Modulating valve P.

Self-Cleaning function Remote-A or B selection QUIET mode One-Touch Comfort How to Cancel the Auto Restart Function How to set the Auto Restart Function Power Failure During Timer Operation Parts Name of Remote Controller Operation of remote control Name and Functions of Indications on Remote Controller Indoor heat. Welcome to ManualMachine. We have sent a verification link to to complete your registration. Log In Sign Up. Forgot password?

Enter your email address and check your inbox. Please check your email for further instructions. Enter a new password. SVM 1. SVM 2. SVM 3. Refrigerant Piping Installation Piping Materials and Joints Used For the refrigerant piping installation, copper pipes and joints are mainly used.

SVM Thickness in. Joints For copper pipes, flare joints or socket joints are used. Thicknesses of socket joints are as shown in Table Table Minimum thicknesses of socket joints Nominal diameter in Reference outer diameter of Minimum joint thickness copper pipe jointed mm in.

Processing of Piping Materials When performing the refrigerant piping installation, care should be taken to ensure that water or dust does not enter the pipe interior, that no other oil than lubricating oils used in the installed air-water heat pump is used, and that refrigerant does not leak. Flare processing procedures and precautions a Cutting the Pipe By means of a pipe cutter, slowly cut the pipe so that it is not deformed.

SVM d Flare Processing. Make certain that a clamp bar and copper pipe have been cleaned. By means of the clamp bar, perform the flare processing correctly.

Use either a flare tool for RA or conventional flare tool. Flare Connecting Procedures and Precautions a Make sure that the flare and union portions do not have any scar or dust, etc.

NOTE : When applying oil to the flare surface, be sure to use oil designated by the manufacturer. Table Tightening torque of flare for RA [Reference values] Nominal Outer diameter Tightening torque Tightening torque of torque wrenches available on the market diameter mm lbf.

SVM Tools Required Tools The service port diameter of packed valve of the outdoor unit in the air-water heat pump using RA is changed to prevent mixing of other refrigerant.

Tools exclusive for RA Those which cannot be used for conventional refrigerant R22 2. Tools exclusive for RA, but can be also used for conventional refrigerant R22 3. Tools commonly used for RA and for conventional refrigerant R22 The table below shows the tools exclusive for RA and their interchangeability. Tools whose specifications are changed for RA and their interchangeability RA Conventional air-water air-water heat pump installation heat pump installation No. General tools Conventional tools can be used.

Vacuum pump Use vacuum pump by attaching vacuum pump adapter. Pipe cutter. Reamer 9. Pipe bender Hexagon wrench 6. Tape measure 8. Spanner or Monkey wrench Metal saw. Clamp meter 3. Insulation resistance tester 2. Thermometer 4. Recharging of Refrigerant When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the following steps.

Recover the refrigerant, and check no refrigerant remains in the equipment. Connect the charge hose to the vacuum pump adapter. Open fully both packed valves at liquid and gas sides.

For refrigerant charging, see the figure below. Refrigerant cylinder Electronic balance. Brazing of Pipes Materials for Brazing 1. Silver brazing filler Silver brazing filler is an alloy mainly composed of silver and copper. Phosphor bronze brazing filler Phosphor bronze brazing filler is generally used to join copper or copper alloy. Flux 1. Reason why flux is necessary. Brazing As brazing work requires sophisticated techniques, experiences based upon a theoretical knowledge, it must be performed by a person qualified.

Never use gas other than Nitrogen gas. Brazing method to prevent oxidation 1 Attach a reducing valve and a flow-meter to the Nitrogen gas cylinder.

Indoor Unit. Outdoor Unit. SVM 5. SVM 6. Indoor Unit No. Outdoor Unit No. SVM 7. P Pressure measurement Gauge attaching port Vacuum pump connecting port Deoxidized copper pipe Outer dia. Strainer Pulse Modulating valve at liquid side Strainer Refrigerant amount : 1. Thermistor themometer 2. SVM 8. Indoor Unit M. Indoor Unit Control Unit. Power Supply Circuit Converter D. SVM 9. Outline of Air Conditioner Control This air conditioner is a capacity-variable type air conditioner, which uses AC or DC motor for the indoor for motor and the outdoor fan motor.

The entire air conditioner is mainly controlled by the indoor unit controller. Role of indoor unit controller The indoor unit controller judges the operation commands from the remote controller and assumes the following functions.

Role of outdoor unit controller Receiving the operation command signal Serial signal from the indoor unit controller, the outdoor unit performs its role. Contents of operation command signal Serial signal from indoor unit controller to outdoor unit controller The following three types of signals are sent from the indoor unit controller. Contents of operation command signal Serial signal from outdoor unit controller to indoor unit controller The following signals are sent from the outdoor unit controller.

Contents of judgment are described below. Operations followed to judgment of serial signal from indoor side. Operation Description 1. Auto Restart Function.. Remote Controller and Its Fuctions SVM Item Operation flow and applicable data, etc.

Description 1. Basic 1. Remote controller. Basic 2. As shown in the following figure, the operation starts by 2 Selects an operation mode from Ta in selecting automatically the status of room temperature the left figure.

Ta when starting AUTO operation. When reselecting the operation mode, the fan operation mode is selected. If a breakdown occurs the correct and safe work. By using tools and materi- Piping Materials and Joints Used precautions into consideration.

For the refrigerant piping installation, copper pipes 1 Never use refrigerant other than RA in an air and joints are mainly used. Copper pipes and joints conditioner which is designed to operate with suitable for the refrigerant must be chosen and RA. Furthermore, it is necessary to use clean copper pipes and joints whose interior surfaces are If other refrigerant than RA is mixed, pres- less affected by contaminants.

It is necessary to use seamless copper pipes 2 Confirm the used refrigerant name, and use which are made of either copper or copper alloy tools and materials exclusive for the refrigerant and it is desirable that the amount of residual oil RA.

Do not use copper pipes having a collapsed, deformed or discol- The refrigerant name RA is indicated on the ored portion especially on the interior surface. To prevent Otherwise, the expansion valve or capillary tube mischarging, the diameter of the service port may become blocked with contaminants.

If the refrigerant gas comes into contact with fire, Thicknesses of copper pipes used with RA a poisonous gas may occur.

Never use copper pipes thinner than 0. Otherwise, pressure in the refrigeration cycle may become abnormally high so that a rupture or personal injury may be caused. If the refrigerant gas leaks into the room, coming into contact with fire in the fan-driven heater, space heater, etc. Nominal diameter Outer diameter mm RA R Prior to use, be sure to remove all con- for connections, and used mainly for thick taminants. In such a case, socket joints can be used.

Sizes of flare pipe ends, flare joint ends and flare nuts are as shown in Tables to 2- below. Reference outer diameter of Minimum joint thickness Nominal diameter copper pipe jointed mm mm. Processing of Piping Materials 1 Flare Processing Procedures and Precautions When performing the refrigerant piping installation, a Cutting the Pipe care should be taken to ensure that water or dust By means of a pipe cutter, slowly cut the pipe does not enter the pipe interior, that no other oil so that it is not deformed.

When using lubricating oils in the piping refrigerant leakage may occur. Carefully processing, use such lubricating oils whose water remove all burrs and clean the cut surface content has been removed.

When stored, be sure to before installation. Use either a flare tool for RA or conven- tional flare tool. Flare processing dimensions differ according to the type of flare tool. When choos- do not have any scar or dust, etc. Table b Correctly align the processed flare surface shows reference values. The tightening When applying oil to the flare surface, be sure to use torque for RA is the same as that for oil designated by the manufacturer.

If any other oil is conventional R Incidentally, when the used, the lubricating oils may deteriorate and cause torque is weak, the gas leakage may occur. Tools Required Tools The service port diameter of packed valve of the outdoor unit in the air conditioner using RA is changed to prevent mixing of other refrigerant. The used refrigerating oil is changed, and mixing of oil may cause a trouble such as generation of sludge, clogging of capillary, etc.

Accordingly, the tools to be used are classified into the following three types. Tools whose specifications are changed for RA and their interchangeability. RA Conventional air air conditioner installation conditioner installation No. Note 1 When flaring is carried out for RA using the conventional flare tools, adjustment of projection margin is necessary.

For this adjustment, a copper pipe gauge, etc. Note 2 Charging cylinder for RA is being currently developed. General tools Conventional tools can be used. In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary as the general tools.

Also prepare the following equipments for other installation method and run check. Recharging of Refrigerant When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the following steps. Recover the refrigerant, and check no refrigerant remains in the equipment. Set the refrigerant cylinder to the electronic balance, Open fully both packed valves at liquid and gas connect the connecting hose to the cylinder and the sides.

For refrigerant charging, see the figure below. Then, evacuating the refrigerant in the cycle. When additional charging is carried out if refrigerant leaks, the refrigerant composition changes in the refrigeration cycle, that is characteristics of the air conditioner changes, refrigerant exceeding the specified amount is charged, and working pressure in the refrigeration cycle becomes abnormally high pressure, and may cause a rupture or personal injury.

Refrigerant cylinder With siphon pipe Check valve Closed. It is necessary for charging refrigerant under condition of liquid because RA is mixed type of refrigerant. Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the cylinder upside down if cylinder is not equipped with siphon. Electronic Electronic balance balance. RA refrigerant is HFC mixed refrigerant.

Therefore, if it is charged with gas, the composi- tion of the charged refrigerant changes and the characteristics of the equipment varies. Brazing of Pipes 1 Phosphor bronze brazing filler tends to react Materials for Brazing with sulfur and produce a fragile compound water solution, which may cause a gas 1 Silver brazing filler leakage.

Therefore, use any other type of Silver brazing filler is an alloy mainly composed brazing filler at a hot spring resort, etc. It is used to join iron, coat the surface with a paint. Since it is matter on the metal surface, it assists the flow weak in adhesive strength, do not use it for of brazing filler.

N2 flow. As the flux works in a complicated manner as Never use gas other than Nitrogen gas. Nitrogen in order to prevent backflow of the It is effective in case where the brazing tem- Nitrogen gas. Most of fluxes generally used for silver brazing 5 Adjust the flow rate of Nitrogen gas so that it are this type. M Flow meter 1 Do not enter flux into the refrigeration cycle.

Therefore, use a flux which does not Nitrogen gas contain chlorine. Pipe Nitrogen gas. Rubber plug. Knockout system Suction grille Air ionizer Knockout system Plasma air purifying unit. Auxiliary hose Outside length: 0.

Stud bolt hole Minimum 67 or more. Minimum Minimum distance to wall distance to wall or more or more. Lower Outline of part installation plate hanging Center line section of main unit Center line of installation plate. Earth terminal. Detailed A leg part Intake or more Outside line of product C or more Outside line Minimum distance of product from wall 36 R15 50 R5. Parts name Type Specifications. T1 Temp. Allowable pipe length Allowable height difference : 10m Cross flow fan Max. Propeller fan Refrigerant amount : 0.

When the pipe length exceeds 15m, the additional charging of refrigerant, 20g per 1m for the part of pipe exceeded 15m is required. Thermistor themometer 2 Connecting piping condition : 5 m. Power Supply Air purifier Circuit unit. Converter Micro Switch D. C circuit. Remote Controller Infrared Rays, MCC P. Suction temp. Driver circuit Relay Over current Inverter of P. V : Pulse Modulating Valve M. U : Micro Control Unit P. The DC motor drive circuit is mounted to does not reach the board assembly of outdoor the indoor unit.

The compressor and the inverter to control by trouble of the signal system control fan motor are mounted to the outdoor unit.

V 3 Contents of operation command signal Serial Besides, detecting revolution position of the com- signal from indoor unit controller to outdoor unit pressor motor, the outdoor unit controller controls controller speed of the compressor motor by controlling output The following three types of signals are sent from voltage of the inverter and switching timing of the the indoor unit controller. Serial signal including outside temp. Operation Description Item Operation flow and applicable data, etc.

Sending of 3 The outdoor unit controls the operation outdoor fan motor, compressor, command signal pulse modulating valve and 4-way valve according to the operation Compressor revolution control Outdoor fan motor control signal sent from the indoor unit. The power coupler of control [ InIn cooling operation: OFF heating operation: ON ] 4-way valve is usually turned on, Pulse modulating valve control and it is turned off during defrost operation. Only in heating. As shown in the following figure, the operation starts by 2 Selects an operation mode from selecting automatically the status of room temperature Ta in the left figure.

Ta when starting AUTO operation. Then, select an operation mode. When reselecting the operation mode, the fan speed is controlled by the previous operation mode. Tc Limited to Min WD tap 52 Outdoor fan The blowing air volume at the outdoor unit side is controlled. However, it is limited to 8 stages for reasons of controlling. Remote controller 3 Whether the fan is locked or not is detected, and the operation of Indoor unit controller air conditioner stops and an alarm is displayed if the fan is locked.

Capacity The cooling or heating capacity depending on the load is 1 The difference between set control adjusted. Set temp. Ts Room temp.

Ta 3 The rotating position and speed of the motor are detected by the electromotive force occurred on Ts —Ta the motor winding with operation of the compressor. Correction of Hz signal 4 According to the difference resulted from comparison of the correction value of Hz signal with Detection of electromotive force the present operation Hz, the of compressor motor winding inverter output and the commuta- tion timing are varied. Detection of motor speed 5 Change the compressor motor and rotor position speed by outputting power to the compressor.

Current release This function prevents troubles on the electronic parts of the 1 The input current of the outdoor control compressor driving inverter. Outdoor unit inverter main Outdoor temp. To circuit control current 3 Whether the current value exceeds the specified value or Setup of current release point not is judged. Capacity control continues. Cooling current Heating current Outdoor temp. P zone indoor heat compressor speed so that temperature of the heat ex- 2 When temperature of the indoor exchanger changer does not exceed the specified value.

Usual cooling capacity control control in cooling operation. Reduction of compressor speed. Reduction of compressor speed P reduced. The previous operation was heating. Condition 2 : In case of operation stop 2 hours passed after operation stop. The indoor temperature sensor YES detects the room temperature.

Winding is not heated. Heating output for winding detects the outdoor heat exchanger Indoor temperature. As shown in the left temperature. Defrost control This function removes frost adhered to the outdoor heat The necessity of defrost operation is Only in heating exchanger. The condi- Te sensor judges the frosting status of the outdoor heat tions to detect the necessity of exchanger and the defrost operation is performed with defrost operation differ in A, B, or C 4-way valve reverse defrost system.

Outdoor heat exchanger temperature. Louver control This function controls the air direction of the indoor unit. When the louver closes fully, it directs approx. Ta YES Set temp. Tsc — 3 or Set temp. Horizontal Inclined Blowing Inclined Horizontal blowing blowing downward blowing blowing. ECO When pushing [ECO] button on the remote controller, a quiet operation and mild operation is performed by reducing the fan speed and the compressor speed.

The time correction is performed for 8 minutes each. However, 2 According to difference between the first correction is performed seconds after start of the the room temperature and the operation. A A zone gradually widened after 30 —2. C 52Hz. Air purifying This function notifies a trouble on the purifying operation.

The sequence that filter lamp is control The following items are judged as troubles Filter lamp ON. Filter lamp goes off. It is the safety measures considering an incomplete drain when electric dust collector unit has been cleaned with water. Air This function generates nagative ion while cleaning the purifying air in the room. Fan stop Air conditioner operates. Discharge 1. Purpose tempera- Td value Control operation This function detects error on the ture control Judges as an error and stops the compressor.

Reduce slowly compressor speed. Operates with speed commanded by the serial signal. Pulse This function controls throttle amount of the refrigerant in 1 When starting the operation, move modulating the refrigerating cycle. SH control 3 If the discharge temperature was Starting up excessively up, adjust the open degree of valve so that it is in the range of set temperature. Discharge temp. Compressor ON 5 To turn off the compressor while the air conditioner stops by control of the thermostat or by remote controller, adjust the open degree of Td valve to the setup value before stop SH control release control of the compressor.

Stop by Room temp. Select A remote controller operates only one indoor unit. The indoor unit of which SELECT switch on When two indoor units are installed in a room or in two switch on the remote controller is set remote adjacent rooms, this function prevents that two indoor units to B receives the signal sent from the controller receive concurrently a signal from the remote controller as remote controller set to B.

There is no display of A setting. Push the operation button on the remote controller. Unnecessary set [Remote controller select]. Auto Restart Function How to Set the Auto Restart Function This indoor unit is equipped with an automatic To set the auto restart function, proceed as follows: restarting function which allows the unit to restart The power supply to the unit must be on ; the operating with the set operating conditions in the function will not set if the power is off.

The operation will resume without warning front panel continuously for three seconds. The unit receives the signal and beeps three times. This function is not set to work when shipped from The unit then restarts operating automatically in the the factory. Therefore it is necessary to set it to event of power supply being accidentally shut down.

The green lamp is on. If the unit is not required to operate at this time, push [RESET] button once more or use the remote controller to turn it off. The green lamp is turned off. If the unit is required to operate at this time, push [RESET] button once more or use the remote controller to turn it on. How to Cancel the Auto Restart Function To cancel auto restart function, proceed as follows : Repeat the setting procedure : the unit receives the signal and beeps three times.

The unit will be required to be turned on with the remote controller after the main power supply is turned off. The orange lamp is on. The orange lamp is turned off. Power Failure During Timer Operation Therefore, set the timer operation again.

Then we have to clarify it. When you want a temporary operation while the filter When the elapsed time reaches hours after air purifier operation, the filter lamp indicates. After cleaning the filters, turn off the filter lamp. Parts Name of Remote Controller Push this button to ready for storing the settings.

Hold down the button for more than 3 seconds to 1 Infrared signal emitter store the setting indicated on the remote controller Transmits signal to the indoor unit. Push this button to operate the air conditioner A receiving beep is heard. A receiving beep is heard. Push the button again to stop operation. Push this button to operate the air conditioner If no receiving sound is heard from the indoor unit, economically.

Each time you push the button, the modes cycle in Push this button after cleaning the air filter. Push this button to operate the air conditioner to the settings stored using the MEMO button. Push this button to start the electrical air purifying You can select the OFF timer time from among four You can also manually select the desired fan speed settings 1, 3, 5 or 9 hours. Name and Functions of Indications on Remote Controller [Display] All indications, except for the clock time indicator, are displayed by pushing the button.

Shows that the electrical air purifying operation is in progress. The P mark is shown when holding down the button for more than 3 seconds while the mark is 5 FAN speed display flashing. Indicates the selected fan speed. AUTO or five Push another button to turn off the mark.

During operation, only the relevant indications will be indicated on the remote controller. The value of the preset temperature on the remote controller does not change. Then when the differ- ence between them gets smaller, the horizon- tal louver returns automatically. For general public use Power supply cord of outdoor unit shall be more than 1.

RA refrigerant is apt to be affected by impurities such as water, oxidizing membrane, and oils. The working pressure of RA refrigerant is approx. Accompanied with adoption of the new refrigerant, the refrigeration machine oil has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigeration machine oil does not enter into the new type refrigerant RA air conditioner circuit.

To prevent mixing of refrigerant or refrigerating machine oil, the sizes of connecting sections of charging port on main unit and installation tools are different from those for the conventional refrigerant units. Accord- ingly, special tools are required for the new refrigerant RA units. Moreover, do not use the existing piping because there are some problems with pressure fittings and possible impurities in the existing piping.

The installation fuse 25A D type must be used for the power supply line of this air conditioner. Personal injury and property damage can result if the unit falls. If you detect any damage, do not install the unit. Contact your Toshiba dealer immediately. Do not store in a wet basement or expose to rain or water. Do not install in a place that can amplify the noise level of the unit or where noise or discharged air might disturb neighbors.

It contains further important instructions necessary for proper installation. It is recommended to procure an anti freeze heater locally for a safety installation of the air conditioner. For details, contact the dealer. Installation Diagram of Indoor and Outdoor Units. Cover mm or more Do not allow the drain hose to Hook become slack. Shield pipe 8 Flat head 10 Dust collecting wood screw unit The auxiliary piping can be connected at the left, rear left, rear right, right, bottom right or 4 Remote controller holder bottom left as shown below.

Fixing bolt arrangement of outdoor unit Accessory and Installation Parts. Part No. Part name Q'ty Part No. Part name Q'ty.

This model is not equipped with an Name extention drain hose. In order to prevent any other refrigerant from being charged, each port diameter has been changed. When purchasing a charge hose, be sure to confirm the port size. The size of opposite sides of flare nuts have been increased. Torque wrench nominal diam. Gauge for projection adjustment — — Used when flare is made by using conventional flare tool. Connected to conventional vacuum pump.

If the vacuum pump oil mineral mixes with RA a sludge may occur and damage the equipment. Indoor Unit Mounting the Installation Plate Installation Place For installation of the indoor unit, use the paper pattern on the back. The indoor unit shall be installed as top of the indoor unit comes to at least 2m height.

Also it must be avoided to put anything on the top of the indoor unit. For details, see the owner's manual. Securely fit the installation plate onto the wall by screwing it in the upper and lower parts to hook up the indoor unit. Remote controller 2. Install the installation plate horizontally in the wall. When installing the installation plate with mounting This is necessary to prevent image disturbances or screw, do not use the anchor bolt hole.

Otherwise noise interference. Side view Top view 5m Anchor bolt Indoor unit. Reception Reception Remote range Remote range controller controller Fig. After determining the pipe hole position on the walls, make 5 mm dia. Electrical Work Screw Terminal block. The supply voltage must be the same as the rated Terminal cover Cord clamp voltage of the air conditioner. Connecting cable 1 2 3 2.

Prepare the power source for exclusive use with the 8 air conditioner. Earth line 1 Connection to fixed wiring : A switch or circuit breaker which disconnects. An approved circuit breaker or switches must be used. An approved power supply cord and plug must be used.

Piping and Drain Hose Installation. Use polyethylene foam as insulating material. Wiring Connection Rear right How to connect the connecting cable. Piping preparation Rear left. Bottom left Front panel slit.

Remove the air inlet grille. Open the air inlet grille upward and pull it toward Left Die-cutting. Remove the terminal cover and cord clamp. Bottom right 3. Insert the connecting cable according to the local cords into the pipe hole on the wall.

Right 4. Take out the connecting cable through the cable slot Fig. Die-cutting front panel slit 5. Insert the connecting cable fully into the terminal Cut out the slit on the left or right side of the front block and secure it tightly with screws. Air filtering This function generates minus ion while cleaning the air Operation button control in the room. Page 35 Item Operation flow and applicable data, etc. Pulse motor This function controls throttle amount of the refrigerant in 1 When starting the operation, move valve PMV the refrigerating cycle.

Page 36 Page 37 Auto Restart Function How to Set the Auto Restart Function To set the auto restart function, proceed as follows: This indoor unit is equipped with an automatic restarting function which allows the unit to restart The power supply to the unit must be on ; the operating with the set operating conditions in the function will not set if the power is off.

Page 38 How to Cancel the Auto Restart Function To cancel auto restart function, proceed as follows : Repeat the setting procedure : the unit receives the signal and beeps three times. The unit will be required to be turned on with the remote controller after the main power supply is turned off. Parts Name of Remote Controller Hold down the button for more than 3 seconds to store the setting indicated on the remove control and Infrared signal emitter until the mark is displayed.

Page 40 Name and Functions of Indications on Remote Controller [Display] All indications, except for the clock time indicator, are displayed by pushing the button. Transmission mark TIMER and clock time display This transmission mark indicates when the The time setting for timer operation or the clock remote controller transmits signals to the indoor time is indicated. Page 41 Page Installation Procedure 9. Safety Cautions For general public use Power supply cord of outdoor unit shall be more than 1.

If you detect any damage, do not install the unit. Contact your Toshiba dealer immediately. Do not store in a wet basement or expose to rain or water. Page 45 Accessory and Installation Parts Part No. Part No. Page Indoor Unit Indoor Unit Mounting the Installation Plate For installation of the indoor unit, use the paper Installation Place pattern on the back. Page 47 The supply voltage must be the same as the rated Connecting voltage of the air conditioner. Prepare the power source for exclusive use with the air conditioner.

Page 48 How to install the Drain Cap Left-hand connection with piping Firmly insert drain hose connecting part unit hitting on Bend the connecting pipe so that it is laid within 43mm a heat insulator.

If the connecting pipe is laid exceeding 43mm above the wall surface, the indoor unit may unstably be set on the wall. Page 49 Indoor Unit Installation Outdoor Unit 1. Pass the pipe through the hole in the wall, and hook Installation Place the indoor unit on the installation plate at the upper hooks. Page 50 2. Insert a flare nut into the pipe, and flare the pipe. Outer dia. Page 51 Fig. There will be one short beep.

Therefore, diagnose A large-capacity electrolytic capacitor is used in the troubles according to the trouble diagnosis proce- outdoor unit controller inverter.

Therefore, if the dure as described below. Page 53 Operation Which is not a Trouble Program Operation For controlling the air conditioner, the program operations are built in the microcomputer as described in the following table.

If a claim is made for running operation, check whether or not it meets to the contents in the following table.

Judgment by Flashing LED of Indoor Unit While the indoor unit monitors the operation status of the air conditioner, if the protective circuit operates, the contents of self-diagnosis are displayed with block on the indoor unit indication section.

Table Check Item Block display Page 55 Page 56 However, the check codes are not deleted even if the power supply is turned off because they are stored in the fixed memory. Inverter over-current All off Displayed when Even if trying operation again, all board protective circuit error is detected. Judgment of Trouble by Every Symptom Is the supply voltage normal? Operation 2.