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CS-HE9DKE / CU-HE9DKE
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Panasonic CS-HE9DKE / CU-HE9DKE [16/88] Electronic circuit diagram

8 Electronic Circuit Diagram

8.1. Indoor Unit / Remote Controller

CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

Содержание

Air conditioner 1
Contents 1
Cs he9dke cu he9dke cs he12dke cu he12dke 1
Page page 1
Features 2
Functions 3
Product specifications 6
Specifications are subject to change without notice for further improvement 7
Specifications are subject to change without notice for further improvement 9
Dimensions 10
Wiring diagram 14
Electronic circuit diagram 16
Basic function 20
Internal setting temperature 20
Operation details 20
During auto operation test run forced heating or odour removal operation and following for three minutes after the operation is stopped 21
During installation check mode and following for three minutes after checking 21
During on timer sampling and during preliminary operation 21
During operation and following for three minutes after the operation is stopped 21
For three minutes when plugged in the a c or the error reset button on remote controller is pressed 21
Indoor power relay control 21
Table b outdoor air temperature shifting 21
Table c fan speed shifting 21
Table d start up shifting 21
The power relay turns on under the following conditions 21
Cooling operation 22
Dry operation 22
Heating operation 22
Room temperature control compressor control 22
Thermostat control 22
Airflow direction control 23
Horizontal and vertical directions 23
Vertical louver is controlled by remote control the vertical airflow direction button on the remote controller and by each operation mode as shown in the table below 23
The values in the parentheses are for the models cs he12dke 24
The vertical louver is closed when the unit is turned off with the remote controller stop position 24
The vertical louver is fully opened and move to the setting position when the unit is turned on with the remote controller 24
The vertical louver remains at open position when the unit is turned off during operation 24
Horizontal airflow direction control 25
Quiet operation cooling mode cooling area of dry mode 26
Quiet operation under dry operation dry area at dry mode 26
Quiet operation heating 27
Fan motor operation 28
Indoor fan control 28
Cooling operation 29
Dry operation 29
Heating operation 29
Cooling operation 30
Dry operation 30
Powerful operation 30
Automatic operation 31
Heating operation 31
Operation mode selection 31
Auto restart control 32
Sleep timer operation 32
Timer operation 32
Ionizer operation 33
Conditions of starting and cancellation 34
Indoor airflow direction control 34
Indoor fan control 34
Oxygen enrich operation 34
Oxygen enrich system figure 34
Common use with on off timer 35
Cooling heating dry or ionizing air cleaning operation 35
In last time operation if unit is stopped in single oxygen enrich operation it operates in single oxygen enrich mode in last time operation if unit is stopped in operations other than single oxygen enrich it operates at its operation mode 35
Ionizing air cleaning operation 35
Not applicable 35
Operating cycle period of vacuum pump 10 minutes oxygen supply level is renewed in a cycle 35
Oxygen enrich control 35
Oxygen monitor display 35
Preliminary operation of single oxygen enrich operation 35
Unit remains the operation 35
Unit stops operating 35
Vacuum pump is operated after oxygen requirement level that is decided in outdoor unit from oxygen supply level decided in indoor unit and protective control devices such as a vacuum pump 35
When off time of the timer setting is up during oxygen enrich operation 35
When on time of the timer setting is up during operation stop 35
When on time of the timer setting is up during oxygen enrich operation 35
When oxygen is selected with the switch during ionizing air cleaning operation simultaneous oxygen enrich operation 35
Installation oxygen check control 36
Compressor overheating prevention control 37
Compressor protection control refrigeration cycle abnormality 37
Ipm power transistor protection control dc peak detection 37
Outdoor high pressure prevention control cooling and dry operations 37
Protection control 37
Seconds forced operation 37
Time delay safety control 37
Total running current control 37
Anti freezing control cooling and dry operations 38
Four way valve operation detection control switching abnormality between cooling and heating 38
Indoor intake air temperature control heating operation 38
Outdoor air temperature control 38
Carry out test running to confirm that no abnormality occurs after the installation then explain to user the operation care and maintenance as stated in instructions please remind the customer to keep the operating instructions for future reference 45
Electrical work must be installed by a licensed electrician be sure to use the correct rating of the power plug and main circuit for the model to be installed 45
Installation instructions 45
Read the following safety precautions carefully before installation 45
Safety precautions 45
The caution items stated here must be followed because these important contents are related to safety the meaning of each indication used is as below incorrect installation due to ignoring of the instruction will cause harm or damage and the seriousness is classified by the following indications 45
The items to be followed are classified by the symbols 45
How to fix installation plate 48
Indoor unit 48
Select the best location refer to select the best location section 48
To drill a hole in the wall and install a sleeve of piping 48
Indoor unit installation 49
Connect the cable to the indoor unit 51
Connecting the piping 52
Evacuation of the equipment for europe oceania destination 52
Install the outdoor unit 52
Outdoor unit 52
Select the best location refer to select the best location section 52
Connect the cable to the outdoor unit 53
Pipe insulation 53
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 55
About r410a refrigerant 55
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 55
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 55
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 55
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 55
Installation and servicing air conditioner using r410a 55
Outline 55
The characteristics of hfc r410a refrigerants 55
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 56
1 you can use the conventional r22 flaring tool if you need to buy a new tool buy the r410a type 56
2 use when it is necessary to detect small gas leaks 56
After finishing the installation check to make sure there is no refrigerant gas leaking 56
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 56
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 56
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 56
Do not use any refrigerant other than r410a in acs that have been used with r410a 56
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 56
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 56
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 56
Necessary tools 56
Safety measures when installing servicing refrigerant piping 56
Tools for installing servicing refrigerant piping 56
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 56
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 56
Because the pressure is higher for the r410a type the conventional type cannot be used 57
Copper tube gauge for clearance adjustment used when flaring with the conventional flaring tool clutch type 57
Flaring tool clutch type 57
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 57
Manifold gauge 57
R410a tools 57
The shape of the manifold ports has been changed to prevent the possibility of mistakenly charging with another type of refrigerant 57
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 57
Torque wrenches 57
R410a tools which are usable for r22 models 59
Piping materials 60
Processing and connecting piping materials 60
Refrigerant piping work 60
A check to make sure there is no scratches dust etc on the flare and union 61
B align the flared surface with the axial center of the union 61
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 61
Procedure and precautions for flare connection 61
Storing and managing piping materials 62
Inspecting gas leaks with a vacuum pump for new installations using new refrigerant piping 63
Installation transferring servicing 63
Ac units replacement using existing refrigerant piping 64
Recharging refrigerant during servicing 64
Refrigerant compatibility using r410a refrigerant in r22 acs and vice versa 64
Transferring using new refrigerant piping 64
Brazing 66
Servicing tips 66
About lead solder pbf 67
Servicing information 67
Troubleshooting 68
Carry on the measurements of pressure electric current and temperature fifteen minutes after an operation is started 69
Relationship between the condition of the air conditioner and pressure and electric current 69
Breakdown self diagnosis function 70
Self diagnosis function three digits alphanumeric code 70
Although operation forced to stop when abnormality detected emergency operation is possible for certain errors refer to error codes table by using remote controller or auto switch at indoor unit however the remote controller signal receiving sound is changed from one beep to four beep sounds 71
Error code table 71
The memory data of error code is erased when the power supply is cut off or press the auto switch until beep sound heard following by pressing the reset button at remote controller 71
Disassembly of indoor unit 72
Disassembly of parts 72
Removal of control board box 72
Removal of the front grille 72
Removal of control board 73
Removal of fan motor and cross flow fan 73
Removal of air swing motors for vertical and horizontal louvers 75
Removal of oxygen discharge outlet 75
Removal of ventilation motor 75
Removal of front panel motor 76
Removal of ionizer 76
Disassembly of outdoor unit 77
Removal of cabinet top plate and cabinet front plate 77
Removal of control cover and terminal cover 77
Removal of control board 78
Removal of control box 78
Removal of propeller fan and fan motor 79
Removal of vacuum pump 80
Operation characteristics 81
Technical data 81
Cs he12dke cu he12dke 83
Cs he9dke cu he9dke 83
Sensible capacity chart 83
Exploded view and replacement parts list 84
Exploded view indoor unit 84
All parts are supplied from acd japan 85
O marked parts are recommended to be kept in stock 85
Replacement parts list indoor unit 85
The non numbered parts are not kept as standard service parts 85
Exploded view outdoor unit 86
Replacement parts list outdoor unit 87
Acd printed in japan 88
All parts are supplied from acd japan 88
O marked parts are recommended to be kept in stock 88

Panasonic CS-HE9DKE / CU-HE9DKE [16/88] Electronic circuit diagram

Содержание

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