Panasonic CS-E12DKEW / CU-4E27CBPG [55/200] Indoor fan control

Cs me7dkeg cs me10dd3eg cs me10dteg cs e15db4ew 1

Cs me7dkrg cs me7dkdg cs e9dkew cs e9dkrw cs e9dkdw cs e12dkew cs e12dkrw cs e12dkdw cs e15dkew cs e15dkrw cs e15dkdw cs e18dkew cs e18dkrw cs e18dkdw cs e15dd3ew cs e18dd3ew cs e15dtew cs e18dtew cs e18db4ew 1

Multi air conditioner 1

Page page 1

Please file and use this manual together with the service manuals for the following models indoor unit models cs me7ckpg cs me10ckpg cs me12ckpg cs me14ckpg and cs me18ckpg outdoor unit models cu 2e15cbpg cu 2e18cbpg cu 3e23cbpg and cu 4e27cbpg order no rac0209005c2 indoor unit models cs me7cb1p cs me10cb1p cs me12cb1p cs me14cb1p cs me10cd3p and cs me14cd3p outdoor unit models cu 3e23cbpg and cu 4e27cbpg order no rac0312001a8 1

Features 3

About lead solder pbf 4

Caution 4

Distinction of pbf p c board 4

Functions 5

Product specifications 15

Specifications are subject to change without notice for further improvement 15

Wall type 15

Duct type 16

Specifications are subject to change without notice for further improvement 16

Ceiling floor type 17

Specifications are subject to change without notice for further improvement 17

Mini cassette type 18

Specifications are subject to change without notice for further improvement 18

2 kw class model indicates cs me10dd3eg duct and cs me10dteg ceiling floor 19

A combination of 2 kw 2 kw includes the following 19

Cs me10dd3eg duct cs e9dkew wall 19

Cs me10dd3eg duct cs e9dkrw wall 19

Cs me10dd3eg duct cs me10dd3eg duct 19

Cs me10ddteg ceiling floor cs me10dteg ceiling floor 19

Cs me10dteg ceiling floor cs e9dkew wall 19

Cs me10dteg ceiling floor cs e9dkrw wall 19

Cs me10dteg ceiling floor cs me10dd3eg duct 19

Outdoor units cu 2e15cbpg cu 2e18cbpg 19

Outdoor units cu 3e23cbpg cu 4e27cbpg 20

Dimensions 24

Refrigeration cycle diagram 30

Wiring diagram 33

Basic function 37

Internal setting temperature 37

Inverter control which equipped with a microcomputer in determining the most suitable operating mode as time passes automatically adjusts output power for maximum comfort always in order to achieve the suitable operating mode the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting the compressor at outdoor unit is operating following the frequency instructed by the microcomputer at indoor unit that judging the condition according to internal setting temperature and intake air temperature 37

Once the operation starts remote control setting temperature will be taken as base value for temperature shifting processes these shifting processes are depending on the air conditioner settings and the operation environment the final shifted value will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit 37

Operation details 37

Table a auto operation mode setting 37

Table b outdoor air temperature shifting 37

Table c power mode shifting 37

Wall type 37

After deice complete within 600 sec 38

Comp starting within 600 sec 38

Comp stop 38

During deice 38

During operation it will compare with the target room temperature offset value at specific period then the room temperature will be updated 38

Heating zone e and above temperature gap is big and great capacity increased 38

However if the following condition is occurred temperature cannot detect correctly and therefore no updating will be done 38

I initial value when operation starts or changing the actual operation mode 38

Ii updating during operation 38

Room temperature shift value dgeta 38

Set the offset value at each operation mode however in order to improve the heating startup efficiency the offset value will be changed based on the gap between setting temperature and room temperature 38

Table d indoor air temperature shifting 38

Target room temperature shift value dgetadst 38

The heat exchanger unit s temperature is different based on operation mode it becomes the action operation mode value 38

To offset the absolute gap between detection temperature with actual room temperature 38

Update the room temperature offset value dgeta 38

When compressor on off correction of detected room temperature by shift value during defrost etc 38

Simultaneous operation control 39

Cooling operation 40

Heating operation 40

Soft dry operation 40

Thermostat control 40

Automatic operation 41

During operation mode judgment indoor fan motor with speed of lo and outdoor fan motor are running for 30 seconds to detect the indoor intake and outdoor air temperature the operation mode is decided based on below chart 41

The operation mode chart for this example is as shown in below figure and the operation mode to be performed will depend on indoor intake air temperature and outdoor air temperature at the time when the judgment is made 41

There is a temperature shifting on t1 t2 and t3 if the operation mode judged is changed from cooling soft dry to heating or vice verse 41

This mode can be set using remote control and the operation is decided by remote control setting temperature indoor intake air temperature and outdoor air temperature 41

Values of t1 t2 and t3 depend on remote control setting temperature as shown in below table after the adjustment of t1 t2 and t3 values the operation mode for that particular environment and remote control setting is judged and performed based on the above operation mode chart every 3 hours 41

A basic rotation speed rpm 42

Cooling dry fan 42

Heating 42

Indoor fan motor operation 42

Refer to the cs e12dkew column for cs e12dkrw and cs e12dkdw 42

Refer to the cs e15dkew column for cs e15dkrw and cs e15dkdw 42

Refer to the cs e18dkew column for cs e18dkrw and cs e18dkdw 42

Refer to the cs e9dkew column for cs e9dkrw and cs e9dkdw 42

Refer to the cs me7dkeg column for cs me7dkrg and cs me7dkdg 42

Required rotation speed for fan is set to respond to the remote control setting 10 rpm unit 42

Cooling 44

Heating 44

Ii auto fan speed 44

Refer to the cs e12dkew column for cs e12dkrw and cs e12dkdw 44

Refer to the cs e15dkew column for cs e15dkrw and cs e15dkdw 44

Refer to the cs e18dkew column for cs e18dkrw and cs e18dkdw 44

Refer to the cs e9dkew column for cs e9dkrw and cs e9dkdw 44

Refer to the cs me7dkeg column for cs me7dkrg and cs me7dkdg 44

Airflow direction 46

Automatic vertical airflow direction can be set using remote control the vane swings up and down within the angles as stated above for heating mode operation the angle of the vane depends on the indoor heat exchanger temperature as figure 1 below when the air conditioner is stopped using remote control the vane will shift to close position 46

Control at cooling dry operation and auto fan speed 46

Control of airflow direction can be automatic angles of direction is determined by operation mode heat exchanger temperature and intake air temperature and manual angles of direction can be adjusted using remote control 46

D deodorizing control 46

I control condition 46

Ii operation 46

Manual vertical airflow direction can be set using remote control the angles of the vane are as stated above and the positions of the vane are as figure 2 below when the air conditioner is stopped using remote control the vane will shift to close position 46

No deodorizing control is performed during on timer standby operation and during anti freezing control prevention 46

The odor status is arranged as below and it is shifted as follows 46

There are two types of airflow vertical airflow directed by horizontal vane and horizontal airflow directed by vertical vanes 46

Vertical airflow 46

A powerful button is pressed 47

A purpose 47

A quiet operation start condition 47

Automatic horizontal airflow direction can be set using remote control the vane swings left and right within the angles as stated below for heating mode operation the angle of the vane depends on the indoor heat exchanger temperature as figure 1 below 47

B control condition 47

B quiet operation stop condition 47

B stop by off on switch 47

C timer off activates 47

D quiet button is pressed again 47

Horizontal airflow 47

Manual horizontal airflow direction can be set using remote control the angles of the vane are as stated below and the positions of the vane are as figure 2 above 47

Quiet led illuminates 47

Quiet operation cooling mode cooling area of dry mode 47

To provide quiet cooling operation compare to normal operation 47

When one of the following conditions is satisfied quiet operation stops 47

When quiet button at remote control is pressed 47

Quiet operation heating 48

Delay off timer control 49

Delay on timer control 49

Powerful mode operation 49

Auto restart control 50

Indication panel 50

Auto operation switch 51

Ionizer operation 51

A stopped by on off switch 52

B operation mode ionizer operation 52

B timer off activates 52

C ion feedback signal shows error 52

C timer during ionizer operation 52

I purpose 52

Ii two types of problem detection control 52

Ionising operation start condition 52

Ionising operation stop condition 52

Ionizer problem detection control 52

Power led also illuminates 52

Refer to case study in next page for details 52

To inform user of ionizer problems and detection 52

When air conditioner unit is in on condition heat cool dry fan auto mode and an ion operation button at remote control is pressed ionizer on ion led illuminates 3 4 52

When ion is displayed on the remote controller ionizer operates 52

When one of the following conditions is satisfied ion operation stops 52

Anti freezing control 53

Ionizer operation case study 53

Duct type 54

Simultaneous operation control 54

Indoor fan control 55

Drain pump control 56

Auto restart control 57

Auto button 58

Other indoor unit operation functions 58

Drain test sw1 59

High static pressure switch high state switch sw2 59

Basic function 60

Ceiling floor type 60

Internal setting temperature 60

Inverter control which equipped with a microcomputer in determining the most suitable operating mode as time passes automatically adjusts output power for maximum comfort always in order to achieve the suitable operating mode the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting the compressor at outdoor unit is operating following the frequency instructed by the microcomputer at indoor unit that judging the condition according to internal setting temperature and intake air temperature 60

Once the operation starts remote control setting temperature will be taken as base value for temperature shifting processes these shifting processes are depending on the air conditioner settings and the operation environment the final shifted value will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit 60

Table a auto operation mode setting 60

Table b outdoor air temperature shifting 60

Table c power mode shifting 60

After deice complete within 600 sec 61

Comp starting within 600 sec 61

Comp stop 61

During deice 61

During operation it will compare with the target room temperature offset value at specific period then the room temperature will be updated 61

Heating zone e and above temperature gap is big and great capacity increased 61

However if the following condition is occurred temperature cannot detect correctly and therefore no updating will be done 61

I initial value when operation starts or changing the actual operation mode 61

Ii updating during operation 61

Room temperature shift value dgeta 61

Set the offset value at each operation mode however in order to improve the heating startup efficiency the offset value will be changed based on the gap between setting temperature and room temperature 61

Table d indoor air temperature shifting 61

Table e 61

Target room temperature shift value dgetadst 61

The heat exchanger unit s temperature is different based on operation mode it becomes the action operation mode value 61

To offset the absolute gap between detection temperature with actual room temperature 61

Update the room temperature offset value dgeta 61

When compressor on off correction of detected room temperature by shift value during defrost etc 61

Simultaneous operation control 62

Cooling operation 63

Heating operation 63

Soft dry operation 63

Thermostat control 63

Automatic operation 64

During operation mode judgment indoor fan motor with speed of lo and outdoor fan motor are running for 30 seconds to detect the indoor intake and outdoor air temperature the operation mode is decided based on below chart 64

The operation mode chart for this example is as shown in below figure and the operation mode to be performed will depend on indoor intake air temperature and outdoor air temperature at the time when the judgment is made 64

There is a temperature shifting on t1 t2 and t3 if the operation mode judged is changed from cooling soft dry to heating or vice verse 64

This mode can be set using remote control and the operation is decided by remote control setting temperature indoor intake air temperature and outdoor air temperature 64

Values of t1 t2 and t3 depend on remote control setting temperature as shown in below table after the adjustment of t1 t2 and t3 values the operation mode for that particular environment and remote control setting is judged and performed based on the above operation mode chart every 30 minutes 64

A basic rotation speed rpm 65

Cooling dry fan 65

Heating 65

Indoor fan motor operation 65

Required rotation speed for fan is set to respond to the remote control setting 10 rpm unit 65

Cooling 67

Heating 67

Ii auto fan speed 67

Airflow direction 69

Automatic vertical airflow direction can be set using remote control the vane swings up and down within the angles as stated above for heating mode operation the angle of the vane depends on the indoor heat exchanger temperature as figure 1 below when the air conditioner is stopped using remote control the vane will shift to close position 69

Control of airflow direction can be automatic angles of direction is determined by operation mode heat exchanger temperature and intake air temperature and manual angles of direction can be adjusted using remote control 69

Manual vertical airflow direction can be set using remote control the angles of the vane are as stated above and the positions of the vane are as figure 2 below when the air conditioner is stopped using remote control the vane will shift to close position 69

There is one type of airflow vertical airflow directed by horizontal vane 69

Vertical airflow 69

Quiet operation cooling mode cooling area of dry mode 70

Quiet operation heating 70

Delay on timer control 71

Powerful mode operation 71

Auto operation switch 72

Auto restart control 72

Delay off timer can be set using remote control the unit with timer set will stop operate at set time 72

Delay off timer control 72

If power led is blinking the possible operations of the unit are hot start during deice operation operation mode judgment or delay on timer sampling 72

If timer led is blinking there is an abnormality operation occurs 72

Indication panel 72

This type of control is not applicable during on off timer setting 72

When the power supply is cut off during the operation of air conditioner the compressor will re operate within three to four minutes there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly after power supply resumes 72

When the switch is pressed between 0 to 5 seconds auto mode operation starts to function 72

When the switch is pressed between 11 to 16 seconds and together with the signal from remote control timer decrement button for 5s the unit can be changed to different controlling setting 4 type of transmission codes 72

When the switch is pressed between 16 to 21 seconds either h14 error detection selection mode or the remote control signal receiving sound can be cancelled or turned on 72

When the switch is pressed between 5 to 8 seconds the unit is forced to operate in cooling mode 72

When the switch is pressed between 8 to 11 seconds the unit will enter forced heating mode standby press timer decrement button for 5s for the unit to operate in heating mode 72

Anti dew formation control 73

Anti freezing control 73

Basic function 74

Internal setting temperature 74

Inverter control which equipped with a microcomputer in determining the most suitable operating mode as time passes automatically adjusts output power for maximum comfort always in order to achieve the suitable operating mode the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting the compressor at outdoor unit is operating following the frequency instructed by the microcomputer at indoor unit that judging the condition according to internal setting temperature and intake air temperature 74

Mini cassette type 74

Once the operation starts remote control setting temperature will be taken as base value for temperature shifting processes these shifting processes are depending on the air conditioner settings and the operation environment the final shifted value will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit 74

Table a auto operation mode setting 74

Table b outdoor air temperature shifting 74

Table c power mode shifting 74

After deice complete within 600 sec 75

Comp starting within 600 sec 75

Comp stop 75

During deice 75

During operation it will compare with the target room temperature offset value at specific period then the room temperature will be updated 75

Heating zone e and above temperature gap is big and great capacity increased 75

However if the following condition is occurred temperature cannot detect correctly and therefore no updating will be done 75

I initial value when operation starts or changing the actual operation mode 75

Ii updating during operation 75

Room temperature shift value dgeta 75

Set the offset value at each operation mode however in order to improve the heating startup efficiency the offset value will be changed based on the gap between setting temperature and room temperature 75

Table d indoor air temperature shifting 75

Target room temperature shift value dgetadst 75

The heat exchanger unit s temperature is different based on operation mode it becomes the action operation mode value 75

To offset the absolute gap between detection temperature with actual room temperature 75

Update the room temperature offset value dgeta 75

When compressor on off correction of detected room temperature by shift value during defrost etc 75

Simultaneous operation control 76

Cooling operation 77

Heating operation 77

Soft dry operation 77

Thermostat control 77

Automatic operation 78

During operation mode judgment indoor fan motor with speed of lo and outdoor fan motor are running for 30 seconds to detect the indoor intake and outdoor air temperature the operation mode is decided based on below chart 78

The operation mode chart for this example is as shown in below figure and the operation mode to be performed will depend on indoor intake air temperature and outdoor air temperature at the time when the judgment is made 78

There is a temperature shifting on t1 t2 and t3 if the operation mode judged is changed from cooling soft dry to heating or vice verse 78

This mode can be set using remote control and the operation is decided by remote control setting temperature indoor intake air temperature and outdoor air temperature 78

Values of t1 t2 and t3 depend on remote control setting temperature as shown in below table after the adjustment of t1 t2 and t3 values the operation mode for that particular environment and remote control setting is judged and performed based on the above operation mode chart every 30 minutes 78

A basic rotation speed rpm 79

Cooling dry fan 79

Heating 79

Indoor fan motor operation 79

Required rotation speed for fan is set to respond to the remote control setting 10 rpm unit 79

Cooling 81

Heating 81

Ii auto fan speed 81

Airflow direction 83

Automatic vertical airflow direction can be set using remote control the vane swings up and down within the angles as stated above for heating mode operation the angle of the vane depends on the indoor heat exchanger temperature as figure 1 below when the air conditioner is stopped using remote control the vane will shift to close position 83

Control at cooling dry operation and auto fan speed setting 83

Control of airflow direction can be automatic angles of direction is determined by operation mode heat exchanger temperature and intake air temperature and manual angles of direction can be adjusted using remote control 83

D deodorizing control 83

I control condition 83

Ii operation 83

Manual vertical airflow direction can be set using remote control the angles of the vane are as stated above and the positions of the vane are as figure 2 below when the air conditioner is stopped using remote control the vane will shift to close position 83

No deodorizing control is performed during on timer standby operation and during anti freezing control prevention 83

The odor status is arranged as below and it is shifted as follows 83

There is one type of airflow vertical airflow directed by horizontal vane 83

Vertical airflow 83

Quiet operation cooling mode cooling area of dry mode 84

Quiet operation heating 84

Powerful mode operation 85

Auto operation switch 86

Auto restart control 86

Delay off timer can be set using remote control the unit with timer set will stop operate at set time 86

Delay off timer control 86

Delay on timer can be set using remote control the unit with timer set will start operate earlier than the setting time this is to provide a comfortable environment when reaching the set on time 86

Delay on timer control 86

From the above judgment the decided operation will start operate earlier than the set time as shown below 86

If power led is blinking the possible operations of the unit are hot start during deice operation operation mode judgment or delay on timer sampling 86

If timer led is blinking there is an abnormality operation occurs 86

Indication panel 86

Minutes before the set time indoor at fan speed of lo and outdoor fan motor start operate for 30 seconds to determine the indoor intake air temperature and outdoor air temperature in order to judge the operation starting time 86

This type of control is not applicable during on off timer setting 86

When the power supply is cut off during the operation of air conditioner the compressor will re operate within three to four minutes there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly after power supply resumes 86

When the switch is pressed between 0 to 5 seconds auto mode operation starts to function 86

When the switch is pressed between 5 to 8 seconds the unit is forced to operate in cooling mode 86

When the switch is pressed between 8 to 11 seconds the unit will enter forced heating mode standby press timer decrement button for 5s for the unit to operate in heating mode 86

Anti dew formation control 87

Anti freezing control 87

Breakdown self diagnosis function three digits alphanumeric code 88

Self diagnosis display 88

Error code 89

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 139

About r410a refrigerant 139

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 139

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 139

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 139

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 139

Installation and servicing air conditioner using r410a 139

Outline 139

The characteristics of hfc r410a refrigerants 139

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 140

1 you can use the conventional r22 flaring tool if you need to buy a new tool buy the r410a type 140

2 use when it is necessary to detect small gas leaks 140

After finishing the installation check to make sure there is no refrigerant gas leaking 140

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 140

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 140

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 140

Do not use any refrigerant other than r410a in acs that have been used with r410a 140

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 140

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 140

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 140

Necessary tools 140

Safety measures when installing servicing refrigerant piping 140

Tools for installing servicing refrigerant piping 140

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 140

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 140

Because the pressure is higher for the r410a type the conventional type cannot be used 141

Copper tube gauge for clearance adjustment used when flaring with the conventional flaring tool clutch type 141

Flaring tool clutch type 141

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 141

Manifold gauge 141

R410a tools 141

The shape of the manifold ports has been changed to prevent the possibility of mistakenly charging with another type of refrigerant 141

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 141

Torque wrenches 141

R410a tools which are usable for r22 models 143

Piping materials 144

Processing and connecting piping materials 144

Refrigerant piping work 144

A check to make sure there is no scratches dust etc on the flare and union 145

B align the flared surface with the axial center of the union 145

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 145

Procedure and precautions for flare connection 145

Storing and managing piping materials 146

Inspecting gas leaks with a vacuum pump for new installations using new refrigerant piping 147

Installation transferring servicing 147

Ac units replacement using existing refrigerant piping 148

Recharging refrigerant during servicing 148

Refrigerant compatibility using r410a refrigerant in r22 acs and vice versa 148

Transferring using new refrigerant piping 148

Brazing 150

Servicing tips 150

Disassembly of parts 151

Indoor control board removal procedures 151

Remove the front grille 151

Remove the indoor control board 151

Wall type 151

Cross flow fan and fan motor removal procedures 152

Electronic controller removal procedures 152

Remove cross flow fan and fan motor 152

Remove main electronic controller 152

Duct type 153

Ceiling floor type 155

Electronic controller removal procedure 155

Fan motor removal procedure 155

Front grille removal procedure 155

Disassembly of parts 156

Mini cassette type 156

All parts are supplied from phaam malaysia vendor code 061 187

Marked parts are recommended to be kept in stock 187

Models cs me7dkeg cs me7dkrg cs me7dkdg cs e9dkew cs me9dkrw cs e9dkdw cs e12dkew cs e12dkrw cs e12dkdw 187

Replacement parts list indoor unit 187

All parts are supplied from phaam malaysia vendor code 061 189

Marked parts are recommended to be kept in stock 189

Models cs e15dkew cs e15dkrw cs e15dkdw 189

Replacement parts list indoor unit 189

All parts are supplied from phaam malaysia vendor code 061 191

Marked parts are recommended to be kept in stock 191

Models cs e18dkew cs e18dkrw cs e18dkdw 191

Replacement parts list indoor unit 191

All parts are supplied from acd in japan 193

Marked parts are recommended to be kept in stock 193

Models cs me10dd3eg cs e15dd3ew cs e18dd3ew 193

Replacement parts list indoor unit 193

All parts are supplied from phaam malaysia vendor code 061 195

Marked parts are recommended to be kept in stock 195

Models cs me10dteg cs e15dtew cs e18dtew 195

Replacement parts list indoor unit 195

All parts are supplied from phaam malaysia vendor code 061 198

Marked parts are recommended to be kept in stock 198

Models cs e15db4ew cs e18db4ew 198

Replacement parts list indoor unit 198

Acd printed in japan 200

All parts are supplied from phaam malaysia vendor code 061 200

Marked parts are recommended to be kept in stock 200

Model cz bt12de front grille complete 200

Replacement parts list indoor unit front grille 200

Panasonic CS-E12DKEW / CU-4E27CBPG [55/200] Indoor fan control

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