![Panasonic CS-F50DB4E5 [100/110] Schematic diagram 5](/img/pdf.png)
Panasonic CS-F50DB4E5 [100/110] Schematic diagram 5
![Panasonic CS-F50DB4E5 [100/110] Schematic diagram 5](/views2/1833106/page100/bg64.png)
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CS-F50DB4E5 CU-L50DBE8
Содержание
- Air conditioner 1
- Contents 1
- Cs f50db4e5 cu l50dbe8 1
- Page page 1
- Caution during automatic address setting 3
- Caution of test operation 3
- Example of trouble at test operation 3
- Service information 3
- Indoor and outdoor temperature 4
- Model 50hz cu l34dbe5 cu l43dbe5 cu l50dbe8 4
- Operation range 4
- Power supply 4
- The applicable voltage range for each unit is given in the following table the working voltage among the three phases must be balanced within a 3 deviation from each voltage at the compressor terminals the starting voltage must be higher than 85 of the rated voltage 4
- Auto fan mode indoor unit 5
- Auto swing louvre 5
- Automatic restart function 5
- Compact design 5
- Dry mode function 5
- Features 5
- Low ambient cooling operation 5
- Quiet operation 5
- Variety of excellent features 5
- Automatic changeover function heat pump models 6
- Hot start system heat pump models 6
- Piping and drainage 6
- Low noise design improves in surrounding areas 7
- Low noise outdoor units 7
- Additional refrigerant charging 8
- Drain water dripping prevention structure 8
- Easy test operation 8
- Improved workability 8
- Internal pipe connection 8
- Long pipe design 8
- Pipes that are one size larger can also be connected for renewal 8
- Space saving design allows units to be installed side by side continuously 8
- A brand new control method 9
- Centralized draining method 9
- Wired remote control 10
- Wireless remote control 10
- Group control equipment 11
- Cooling capacities are based on indoor temperature of 27 c d b 80 f d b 19 c w b 66 f w b and outdoor air temperature of 35 c d b 95 f d b 24 c w b 75 f w b 12
- Cs f50db4e5 cu l50dbe8 12
- Electrical data 50 hz 12
- Heating capacities are based on indoor temperature of 20 c d b 68 f d b and outdoor air temperature of 7 c d b 44 f d b 6 c w b 42 f w b 12
- Product specification 12
- Specification 12
- Dimensions 13
- Block diagram 16
- Wiring diagram 18
- Buttons marked with are not needed for normal operation if one of these buttons is pressed by mistake press the same button once more to cancel the operation 20
- Do not operate the remote control with wet hands otherwise electric shock or malfunction may occur 20
- Do not press the remote control buttons with sharp object as this may damage the remote control 20
- Ensure that the correct button is pressed as simultaneous pressing of the multiple buttons will not make the setting correct 20
- Name and function of each part 20
- Operation details 20
- The illustration above is for explanatory purposes only the appearance will be different during actual operation 20
- When the power resumed after power failure the unit will restart automatically with all the previous settings preserved by the memory function auto restart function 20
- Wired remote control optional part 20
- Buttons marked with are not needed for normal operation if one of these buttons is pressed by mistake press the same button once more to cancel the operation 21
- Ensure that the correct button is pressed as simultaneous pressing of the multiple buttons will not make the setting correct 21
- If using the wireless remote control in conjunction with the wired remote control the settings made from the wireless remote control will appear on the wired remote control display except when making timer settings 21
- Name and function of each part 21
- The illustration above is for explanatory purpose only the appearance will be different during actual operation 21
- When the power resumed after power failure the unit will restart automatically with all previous settings preserved by the memory function auto restart function 21
- Wireless remote control optional part 21
- Compressor start control 22
- Cool indoor fan control 22
- Cooling operation 22
- Operation control 22
- Operation mode 22
- As follow the below figure fan speed changing operation program air 23
- But when temperature after shifting is less than 16 c setting temperature is 16 c no change 23
- Cool powerful operation 23
- Is different if capacity rank is different 23
- Micro computer judge that required indoor load is bigger than calculation base from temperature differences between room temperature and setting temperature then increase the compressor frequency compared to normal to cool down indoor side immediately 23
- Odour cut control 23
- Odour cut operation is to remove the odour generated at indoor heat exchanger to use the drain water come out from indoor heat exchanger 23
- Odour cut operation is under below condition 23
- Rpm center b and 23
- Those kind of operation complete after 30 minutes when cool mode operation start 23
- Unit using ac motor 23
- Unit using dc motor 23
- When 1st thermostat on condition from operation start fan speed is hi same as manual fan speed after 2nd thermostat on condition fan speed change to medium speed same as manual medium fan speed 23
- When cool or dry mode operation start select odour cut mode or fan auto mode by remote control operation start at odour wash mode when compressor start or shift to thermostat on from thermostat off 23
- When cool or dry mode operation start temperature differences between room temperature and setting temperature is more than 5 k setting temperature shift to 2 k down 23
- Detail of freezing prevention control is as follows 24
- Dew form prevention control 24
- During cool or dry mode operation if indoor evaporator temperature is going down freezing prevention control is operated 24
- During cool or dry operation if outdoor temperature is less than 30 c and indoor fan speed is low or auto setting indoor heat exchanger temperature become lower dew form prevention control start to prevention dew form at indoor discharge grill 24
- Freezing prevention control 24
- Indoor evaporator temperature area is divided into 4 zones which consist of down zone no change zone up zone and recovery zone 24
- Indoor evaporator temperature area is divided into 5 zones which consist of stop zone down zone no change zone up zone and recovery zone when indoor evaporator temperature is going into each zone compressor frequency change by following the below table 24
- When indoor evaporator temperature is going into each zone change compressor frequency and louver angle by following the below table 24
- Cooling low temperature protection control 25
- Drain pump control 25
- Heating indoor fan control 25
- Heating mode operation 25
- Defrost control 26
- Heating indoor fan control at thermostat off heating mode operation 26
- Heating powerful operation 26
- Hot start control 26
- Heating high temperature protection 27
- During operation stopping thermostat off condition louver angle set manual or auto depend on remote controller setting 28
- Louver auto setting 28
- Louver control 28
- Louver control for cassette type 28
- Louver manual setting 28
- Temperature range for louver control during heating operation is as follows decide by indoor heat exchanger temperature 28
- When power is on at the same time louver start initializing toward to close direction 28
- Ceiling type louver control 29
- During operation stopping thermostat is off condition louver angle change as below table by manual setting or auto setting of remote controller 29
- When power is on at the same time louver initialize 2 times 29
- Odour removing operation 30
- Crank case heater control 31
- Energy save operation 31
- Outdoor fan remaining heat removal control 31
- Valve error 31
- Indoor air volume up control dc fan motor type only 32
- Pump down operation 32
- Installation instruction 33
- Pipe length 33
- At the time of shipment from the factory this unit is charged with enough refrigerant for an equivalent pipe length of 30 m refer the following table 34
- Attention 34
- But when the piping length exceeds 30m additional charge is required according to the following table 34
- Cu l50dbe8 34
- Do not decrease the size of the gas piping it causes the breakdown of the compressor 34
- Example 34
- In case of 50m long pipe one way the amount of refrigerant to be replenished is 50 30 x 50 1 000g 34
- Piping installation by standard piping 34
- Position of the centre gravity 34
- Refrigerant additional charge 34
- After installation work has been completed do not only make sure that the unit is free from any abnormal condition through the execution of trial run but also explain how to use and how to perform maintenance of this unit to the customer according to the instruction manual 35
- As to indications with illustration 35
- Cautions such items also have a chance for leading to significant result depending on the situations 35
- Cautions those that have much chances for leading to significant result such as fatality or serious injury if wrong installation would have been carried out are listed compiling them especially into the column of 35
- However even in the case of items which are listed in the column of 35
- In addition request the customer to keep this manual for installation work together with instruction manual 35
- In either case important descriptions regarding the safety are listed then observe them without fail 35
- Indoor unit installation 35
- Precautions shown here are differentiated between 35
- Warnings 35
- Warnings and 35
- Accessories packed in the indoor unit container 36
- Do not install the indoor unit at a laundry electric shocks may result 36
- If the height from the floor to ceiling exceeds three meters air flow distribution deteriorates and the effect is decreased 36
- If the power supply is subject to noise generation add a suppressor 36
- Install the indoor unit once the following conditions are satisfied and after receiving the customer approval 36
- Place the indoor unit according to the height from the ceiling shown in the illustration below 36
- Provide a check port on the piping side ceiling for repair and maintenance 36
- Selecting the location for indoor unit 36
- The indoor unit must allow easy connection to the outdoor unit 36
- The indoor unit must allow easy draining 36
- The indoor unit must be away from heat and steam sources but avoid installing it near an entrance 36
- The indoor unit must be free from any obstacles in path of the air inlet and outlet and must allow spreading of air throughout the room 36
- 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 36
- The indoor unit must be within a maintenance space 36
- The installation position must be able to support a load four times the indoor unit weight 36
- Thoroughly study the following installation locations 36
- Warnings 36
- Installation of indoor unit 37
- Refrigerant piping 38
- Indoor unit drain piping 39
- Heat insulation 40
- Always ground the air conditioner with a grounding wire and screw to meet the local regulations 41
- As to the main power source and cable size of outdoor unit read the installation manual attached to the outdoor unit 41
- Be sure to connect the wires correctly to terminal board with connecting the crimp tyre ring terminal to the wires 41
- Be sure to turn off the main power before installing and connecting the remote controller 41
- Electrical wiring 41
- Feed the power source to the unit via a distribution switch board designed for this purpose the switch should disconnected all poles with a contact seperation of at least 3 mm 41
- Remove a one mounting screw remove the control box cover and then connect the wires by following the procedure given in the illustration 41
- Select a power source that is capable of supplying the current required by the air conditioner 41
- Use the standard power cord for europe such as ho5rn f or ho7rn f which conforms to cenelec har rating specifications or use the cable based on iec standard 245iec57 245iec66 41
- Settings 42
- Installation of decorative panel 43
- 0 as for timer output 45
- 1 precautions in test run 45
- 2 check the following items when installation is complete 46
- 3 hand over 46
- After installation work has been completed do not only make sure that the unit is free from any abnormal condition through the execution of try run but also explain how to use and how to perform maintenance of this unit to the customer according to the instruction manual 47
- As to indications with illustration 47
- Cautions such items also have a chance for leading to significant result depending on the situations 47
- Cautions those that have much chances for leading to significant result such as fatality or serious injury if wrong installation would have been carried out are listed compiling them especially into the column of 47
- However even in the case of items which are listed in the column of 47
- In addition request the customer to keep this manual for installation work together with instruction manual 47
- In either case important descriptions regarding the safety are listed then observe them without fail 47
- Outdoor unit installation 47
- Precautions shown here are differentiated between 47
- Warnings 47
- Warnings and 47
- A brazing work 48
- Accessories supplied with outdoor unit 48
- Before installation work 48
- Brazing work needs replacing air inside pipe with nitrogen gas in order to prevent oxidization scale from occurring this is called nitrogen replacement and one of very important work in brazing refrigerant piping oxidation preventive is not possible to use 48
- Charge hose 48
- Check that all accessory parts are present before installing the outdoor unit 48
- Gas leakage detection warning decive 48
- Gauge manifold 48
- Installation work 48
- The following parts are supplied as accessories with each outdoor unit 48
- There are tools and materials for both new refrigeration and usual refrigeration you can use together and for either two of them you can use use the below for new refrigeration 48
- This product is using new refrigeration r410a the basic way of installation work is the same as usual but water and impurities should be controlled more strictly than before due to characteristic of refrigerating machine oil therefore selection of materials to use and processing storing and brazing need appropriate construction and control 48
- Tools and materials 48
- Vacuum pump with back flow preventor system 48
- After that keep the pressure 100 kpa for 1 hour and confirm the vacuum gauge value not increasing 50
- Dry vacuuming 50
- For the use of a gas cylinder without siphon inside turn it upside down and use it 50
- Handling the unit by hold the handle at compressor side and hold the basepan bottom at fan side 50
- If vacuum gauge value is increase there is possibility of water inside the unit or there is any leakage 50
- If vacuum pump possible vacuuming until less than 100 kpa 50
- Regarding handling 50
- Running vacuum pump at both liquid and gas side for more than 1 hour and vacuuming until 100 kpa 50
- Select location which satisfies the following condition and then confirm with the customer that such a place is satisfactory before installing the outdoor unit 50
- Selecting the outdoor unit installation locations 50
- We recommend manifold with sight glass 50
- Transporting and installing the outdoor unit 51
- Connecting the pipes 52
- Charging with refrigerant 53
- Heat insulation 53
- Clamp the wires securely to the terminal connections using cord clamps so that no undue force is placed on the wires 54
- Connect the power supply wiring and indoor outdoor unit connection wiring according to the electrical circuit diagram instructions 54
- Electrical wiring 54
- Once all wiring work has been completed tie the wires and cords together with the binding strap so that they do not touch other parts such as the compressor and pipes 54
- Operate the pump down according to the following procedures 54
- Pump down operation 54
- Earth lead wire shall be longer than other lead wires as shown in the figure for the electrical safety in case of the slipping out of the cord from the anchorage 55
- Power supply specifications 55
- 0 connecting power supply cables 56
- 1 precautions with regard to test operation 56
- Caution 56
- For three phase model never operate the unit by pressing the electromagnetic switch 56
- Never correct the phase by switching over any of the wires inside the unit 56
- 2 as to making the inspection after completion of work fully understood 57
- 3 as to delivery to the customer 57
- Accessories supplied with wired remote controller 58
- Notes regarding wired remote controller setting up location 58
- Remote controller installation 58
- Wired remote control installation 58
- Settings 61
- Self diagnosis function 63
- Test operation 63
- Accessories supplied with the wireless remote controller 65
- After installing the wireless remote controller carry out a test operation to check that the remote controller functions properly and also explain the operation and cleaning procedures to the customer in accordance with the details in the instruction manual 65
- Before installing the wireless remote controller be sure to thoroughly read the notes with regard to safety section of the installation manual provided with the indoor unit 65
- Furthermore ask the customer to keep this installation manual and the instruction manual in a safe place for later reference 65
- If installing in a place where a power supply is generating electromagnetic noise take measures such as installing a noise filter 65
- If the remote controller is at an angle to the receptor unit the operation range may become shortened 65
- If using an inverter type fluorescent light keep the receptor unit at least 1m away from the light otherwise remote control operation may not work properly 65
- Install at least 1m away from equipment such as tvs and radios otherwise picture distortion or static may occur 65
- Install at least 3m away from any noise sources and shield the electric cables using an iron conduit pipe 65
- Installing the wireless remote controller to a wall for remote control storage 65
- Points and notes regarding wireless remote controller setting up location 65
- The accessory receptor unit must be attached to the veneer panel 65
- The receptor unit for the wireless remote controller should be in a place where it will not be affected by direct light from fluorescent lights refer to the illustration below 65
- The wireless remote controller can be used to operate indoor units at a maximum range of 8 metres from directly facing infront of the indoor unit 65
- Wireless remote control installation manual 65
- Installing the receptor unit 66
- In the control box 68
- Receptor unit for ceiling type assembly procedure 68
- Route for wiring the cord as shown in the figure to the right 68
- Address setting for wireless remote controller and receptor unit only when using more than one indoor unit 69
- Emergency operation 71
- Twin operation 72
- 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 73
- About r410a refrigerant 73
- 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 73
- C pressure characteristics as seen in table 2 the gas pressure of r410a is approximately 1 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 73
- 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 ozone destroying 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 73
- In acs the hfc refrigerant which has become the mainstream alternative is called r410a compared with r22 the pressure of r410a is approximately 1 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 73
- Installation and servicing air conditioner using r410a 73
- Outline 73
- The characteristics of hfc r410a refrigerants 73
- 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 74
- 1 you can use the conventional r22 flaring tool if you need to buy a new tool buy the r410a type 74
- 2 use when it is necessary to detect small gas leaks 74
- After finishing the installation check to make sure there is no refrigerant gas leaking 74
- Cause the gas pressure of r410a is approximately 1 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 74
- 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 74
- 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 a water leakage electric shock fire etc 74
- Do not use any refrigerant other than r410a in acs that have been used with r410a 74
- 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 74
- 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 74
- 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 74
- Necessary tools 74
- Safety measures when installing servicing refrigerant piping 74
- Tools for installing servicing refrigerant piping 74
- 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 74
- 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 74
- Because the pressure is higher for the r410a type the conventional type cannot be used 75
- Copper tube gauge for clearance adjustment used when flaring with the conventional flaring tool clutch type 75
- Flaring tool clutch type 75
- 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 mm and the spring inside the tool is strengthened to increase the strength of the pipe expanding 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 75
- Manifold gauge 75
- R410a tools 75
- The shape of the manifold ports has been changed to prevent the possibility of mistakenly charging with another type of refrigerant 75
- This gauge makes it easy to set the clearance for the copper tube to 1 1 mm from the clamp bar of the flaring tool 75
- Torque wrenches 75
- R410a tools which are usable for r22 models 77
- Piping materials 78
- Processing and connecting piping materials 78
- Refrigerant piping work 78
- A check to make sure there is no scratches dust etc on the flare and union 79
- 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 79
- B align the flared surface with the axial center of the union 79
- Because the gas pressure of r410a is approximately 1 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 79
- 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 79
- Makings and management 79
- Procedure and precautions for flare connection 79
- Storing and managing piping materials 79
- Types of piping and their storage the following is a general classification of the refrigerant pipe materials used for acs 79
- Inspecting gas leaks with a vacuum pump for new installations using new refrigerant piping 80
- Installation transferring servicing 80
- Ac units replacement using existing refrigerant piping 81
- Recharging refrigerant during servicing 81
- Refrigerant compatibility using r410a refrigerant in r22 acs and vice versa 81
- Transferring using new refrigerant piping 81
- Brazing 83
- Servicing tips 83
- Flashing blank off 84
- If the problem disappears and operation returns to normal the check display on the remote control unit will switch off but the self diagnosis led will remain illuminated until operation is resumed 84
- Illuminated 84
- Refer to the table below to remove the cause of the problem and then re start the air conditioner system 84
- Self diagnosis error code table 84
- The display screen on the wired remote control unit and the self diagnosis leds green on the outdoor unit printed circuit board in the outdoor unit can be used to indicate where the location of a problem is 84
- Troubleshooting guide 84
- Caution when servicing of fan and fan motor 86
- Servicing information 86
- Replacement parts 87
- All parts are supplied from phaam malaysia vendor code 061 89
- All parts are supplied from phaam malaysia vendor code 061 91
- Front grille complete cz bt03p 91
- All parts are supplied from phaam malaysia vendor code 061 95
- Electronic circuit diagram 96
- Indoor unit 96
- Schematic diagram 1 4 96
- Cs f50db4e5 cu l50dbe8 97
- Schematic diagram 2 4 97
- Vc r b cc 97
- Cn abn 98
- Cn stm1 98
- Cs f50db4e5 cu l50dbe8 98
- Pc1 pc817e7 1 98
- Q15 2sc3052f 98
- Schematic diagram 3 4 98
- T1 st 2139 98
- Cs f50db4e5 cu l50dbe8 99
- Electronic control unit 99
- Schematic diagram 4 4 99
- Electronic circuit diagram 100
- Outdoor unit 100
- Schematic diagram 1 5 100
- Schematic diagram 5 100
- To indoor unit 100
- Cs f50db4e5 cu l50dbe8 101
- Ic1 mn103s52gpl 101
- Schematic diagram 2 5 101
- Cs f50db4e5 cu l50dbe8 102
- Ets29ak7w1ac 102
- Regulator 102
- Schematic diagram 3 5 102
- Str y152 102
- C111 1000p 103
- C112 1000p 103
- C113 1000p 103
- C97 1000p 103
- C98 1000p 103
- C99 1000p 103
- Cs f50db4e5 cu l50dbe8 103
- Schematic diagram 4 5 103
- Cn disp1 104
- Cs f50db4e5 cu l50dbe8 104
- Schematic diagram 5 5 104
- Indoor unit 107
- Print pattern 107
- Outdoor unit 109
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