Toshiba MMC-AP0244H-E — ошибки управления кондиционером: диагностика и решения [70/219]

Содержание

• Indoor unit p.1
• Service manual p.1
• Air conditioner multi type p.1
• File no a10 033 p.1
• Troubleshooting 67 p.2
• Wiring diagrams 14 p.2
• Specifications 12 p.2
• Refrigerant cycle diagram 29 p.2
• Precautions for safety 6 p.2
• Parts rating 25 p.2
• Control outline 30 p.2
• Contents p.2
• Applied control and functions including circuit configuration 37 p.2
• Detachments 105 p.3
• P c board exchange procedures 98 p.3
• Exploded diagram service parts list 147 p.3
• Please read carefully through these instructions that contain important information which complies with the machinery directive directive 2006 42 ec and ensure that you understand them p.4
• Original instruction p.4
• Generic denomination air conditioner p.4
• Definition of qualified installer or qualified service person the air conditioner must be installed maintained repaired and removed by a qualified installer or qualified service person when any of these jobs is to be done ask a qualified installer or qualified service person to do them for you a qualified installer or qualified service person is an agent who has the qualifications and knowledge described in the table below p.4
• Warning p.5
• The important contents concerned to the safety are described on the product itself and on this service manual please read this service manual after understanding the described items thoroughly in the following contents indications illustrated marks and keep them p.5
• Property damage enlarged damage concerned to property furniture and domestic animal pet p.5
• Indicates possibilities assumed that a danger causing a death or serious injury of the repair engineers the third parties and the users due to troubles of the product after work when an incorrect work has been executed p.5
• Indicates contents assumed that an injury or property damage may be caused on the repair engineers the third parties and the users due to troubles of the product after work when an incorrect work has been executed p.5
• Indicates contents assumed that an imminent danger causing a death or serious injury of the repair engineers and the third parties when an incorrect work has been executed p.5
• Explanation of indications p.5
• Explanation of illustrated marks p.5
• Definition of protective gear when the air conditioner is to be transported installed maintained repaired or removed wear protective gloves and safety work clothing in addition to such normal protective gear wear the protective gear described below when undertaking the special work detailed in the table below failure to wear the proper protective gear is dangerous because you will be more susceptible to injury burns electric shocks and other injuries p.5
• Danger p.5
• Caution p.5
• Warning indications on the air conditioner unit confirmation of warning label on the main unit confirm that labels are indicated on the specified positions if removing the label during parts replace stick it as the original p.6
• Warning indication description p.6
• The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual p.7
• Precautions for safety p.7
• Danger p.7
• Warning p.8
• Relocation only a qualified installer 1 or qualified service person 1 is allowed to relocate the air conditioner it is dangerous for the air conditioner to be relocated by an unqualified individual since a fire electric shocks injury water leakage noise and or vibration may result when carrying out the pump down work shut down the compressor before disconnecting the refrigerant pipe disconnecting the refrigerant pipe with the service valve left open and the compressor still operating will cause air etc to be sucked in raising the pressure inside the refrigeration cycle to an abnormally high level and possibly resulting in reputing injury etc p.11
• Explanations given to user if you have discovered that the fan grille is damaged do not approach the outdoor unit but set the circuit breaker to the off position and contact a qualified service person to have the repairs done do not set the circuit breaker to the on position until the repairs are completed p.11
• This declaration becomes invalid if technical or operational modifications are introduced without the manufacturer s consent p.12
• Declaration of conformity p.12
• Specifications p.13
• Wiring diagrams p.15
• Models mmu ap0074mh e tr ap0094mh e tr ap0124mh e tr ap0154mh e tr ap0184mh e tr p.15
• 1 compact 4 way cassette type p.15
• Models mmu ap0074yh e tr ap0094yh e tr ap0124yh e tr p.16
• Control p c board for indoor unit p.16
• Broken line indicate the wiring at site long dashed short dashed line indicate the accessories 2 indicates the terminal block indicates the connection terminal indicates the connector on the control p c board 3 indicates the protection ground 4 indicates the control p c board p.16
• 2 1 way cassette type compact type yh p.16
• Control p c board for indoor unit p.17
• Broken line indicate the wiring at site long dashed short dashed line indicate the accessories 2 indicates the terminal block indicates the connection terminal indicates the connector on the control p c board 3 indicates the protection ground 4 indicates the control p c board p.17
• 3 1 way cassette type sh p.17
• Models mmu ap0154sh e tr ap0184sh e tr ap0244sh e tr p.17
• Models mmd ap0074bh e tr ap0094bh e tr ap0124bh e tr ap0154bh e tr ap0184bh e tr ap0244bh e tr ap0274bh e tr ap0304bh e tr ap0364bh e tr ap0484bh e tr ap0564bh e tr p.18
• Control p c board for indoor unit p.18
• Broken line indicate the wiring at site long dashed short dashed line indicate the accessories 2 indicates the terminal block indicates the connection terminal indicates the connector on the control p c board 3 indicates the protection ground 4 indicates the control p c board p.18
• 4 concealed duct standard type p.18
• Models mmd ap0184h e tr ap0244h e tr ap0274h e tr ap0364h e tr ap0484h e tr p.19
• Control p c board for indoor unit p.19
• Broken line indicate the wiring at site long dashed short dashed line indicate the accessories 2 indicates the terminal block indicates the connection terminal indicates the connector on the control p c board 3 indicates the protection ground 4 indicates the control p c board 5 when installing the drain pump connect the froat switch connector to cn30 connector 6 position is connected to terminal block when change to static pressure exchange the lead wire of arrow position after check the terminal number as figure and lead wire s color of fan motor 7 be careful when modify the static pressure the static pressure of high tap is different by 50hz or 60hz p.19
• 5 concealed duct high static pressure type p.19
• Control p c board for indoor unit p.20
• Models mmd ap0724h e tr ap0964h e tr p.20
• Broken line indicate the wiring at site long dashed short dashed line indicate the accessories 2 indicates the terminal block indicates the connection terminal indicates the connector on the control p c board 3 indicates the protection ground 4 indicates the control p c board 5 when installing the drain pump connect the froat switch connector to cn30 connector 6 position is connected to terminal block when change to static pressure exchange the lead wire of arrow position after check the terminal number as figure and lead wire s color of fan motor 7 be careful when modify the static pressure the static pressure of high tap is different by 50hz or 60hz p.20
• Models mmd ap0074sph e tr ap0094sph e tr ap0124sph e tr ap0154sph e tr ap0184sph e tr p.21
• Control p c board for indoor unit p.21
• Broken line indicate the wiring at site long dashed short dashed line indicate the accessories 2 indicates the terminal block indicates the connection terminal indicates the connector on the control p c board 3 indicates the protection ground 4 indicates the control p c board p.21
• 6 slim duct type p.21
• Models mmc ap0154h e tr ap0184h e tr ap0244h e tr ap0274h e tr ap0364h e tr ap0484h e tr p.22
• Control p c board for indoor unit p.22
• Broken line indicate the wiring at site long dashed short dashed line indicate the accessories 2 indicates the terminal block indicates the connection terminal indicates the connector on the control p c board 3 indicates the protection ground 4 indicates the control p c board 5 when installing the drain pump connect the froat switch connector to cn34 connector p.22
• 7 ceiling type p.22
• Models mml ap0074h e tr ap0094h e tr ap0124h e tr ap0154h e tr ap0184h e tr ap0244h e tr p.23
• Control p c board for indoor unit p.23
• Broken line indicate the wiring at site long dashed short dashed line indicate the accessories 2 indicates the terminal block indicates the connection terminal indicates the connector on the control p c board 3 indicates the protection ground 4 indicates the control p c board p.23
• 8 floor standing cabinet type p.23
• Models mml ap0074bh e tr ap0094bh e tr ap0124bh e tr ap0154bh e tr ap0184bh e tr ap0244bh e tr p.24
• Control p c board for indoor unit p.24
• Broken line indicate the wiring at site long dashed short dashed line indicate the accessories 2 indicates the terminal block indicates the connection terminal indicates the connector on the control p c board 3 indicates the protection ground 4 indicates the control p c board p.24
• 9 floor standing concealed type p.24
• Models mmf ap0154h e tr ap0184h e tr ap0244h e tr ap0274h e tr ap0364h e tr ap0484h e tr ap0564h e tr p.25
• Control p c board for indoor unit p.25
• Broken line indicate the wiring at site long dashed short dashed line indicate the accessories 2 indicates the terminal block indicates the connection terminal indicates the connector on the control p c board 3 indicates the protection ground 4 indicates the control p c board p.25
• 10 floor standing type p.25
• Way cassette type p.26
• Parts rating p.26
• Compact 4 way cassette type p.26
• 1 indoor unit p.26
• Model mmd ap 0724h 0964h p.27
• Model mmd ap 0244bh 0274bh 0304bh 0364bh 0484bh 0564bh p.27
• Model mmd ap 0184h 0244h 0274h 0364h 0484h p.27
• Model mmd ap 0074bh 0094bh 0124bh 0154bh 0184bh p.27
• Concealed duct standard type p.27
• Concealed duct high static pressure type p.27
• Model mml ap 0074bh 0094bh 0124bh 0154bh 0184bh 0244bh p.28
• Model mmd ap 0074sph 0094sph 0124sph 0154sph 0184sph p.28
• Model mmc ap 0154h 0184h 0244h 0274h 0364h 0484h p.28
• Floor standing concealed type p.28
• Floor standing cabinet type p.28
• Ceiling type p.28
• Slim duct type p.28
• Model mml ap 0074h 0094h 0124h 0154h 0184h 0244h p.28
• Model mmf ap 0154h 0184h 0244h 0274h 0364h 0484h 0564h p.29
• Floor standing type p.29
• Refrigerant cycle diagram p.30
• Indoor unit p.30
• Heat exchanger at indoor side p.30
• Explanation of functional parts in indoor unit p.30
• Caution p.30
• Indoor unit p.31
• Control specifications p.31
• Control outline p.31
• No item specification outline remarks p.32
• No item specification outline remarks p.33
• No item specification outline remarks p.34
• No item specification outline remarks p.35
• The range of operations that can be performed via an indoor unit remote controller can be determined through the setting of the central controller 2 setting details p.36
• Selection of central control mode p.36
• Note if the fan is rotating while the air conditioner is turned off due to an inflow of outside air or some other reason the indoor unit may operate without turning on the fan motor p.36
• Note if fan motor lock is detected the indoor unit is turned off with an error display provided p.36
• No item specification outline remarks p.36
• Louver control 1 louver position setting when the louver position is changed the louver turns all the way down before settling in the set position louver position is adjustable in the range shown in the diagrams below p.36
• During group operation swing setting can be performed individually or collectively 3 set louver positions p.36
• During group operation position setting can be performed individually or collectively 2 swing setting the swing sign is displayed along with alternating images as shown below p.36
• Dc motor 1 when the fan is turned on the positions of the stator and rotor are determined the motor turns in incremental steps 2 the fan operates in accordance with commands issued by the indoor controller p.36
• Check code p12 p.36
• No item specification outline remarks p.37
• Applied control and functions including circuit configuration p.38
• 1 indoor controller block diagram p.38
• 1 1 when main sub remote controller connected p.38
• 1 2 when wireless remote controller kit connected p.40
• 1 3 when both main sub remote controller and wireless remote controller kit connected p.42
• 2 indoor printed circuit board p.44
• Function connector no pin no specification remarks p.46
• 3 optional connector specifications of indoor p c board p.46
• To exchange the indoor pmv coil set the indoor pmv to max opening degree for the detailed positions of chk pin cn71 on indoor p c board and disp pin cn72 on indoor p c board refer to the indoor p c board mcc 1570 p.47
• This function is provided to check the operation of the indoor unit singly without communication with the remote controller or the outdoor unit this function can be used regardless of operation or stop of the system however if using this function for a long time a trouble of the equipment may be caused limit using this function within several minutes p.47
• How to operate 1 short circuit chk pin cn71 on the indoor p c board the operation mode differs according to the indoor unit status in that time normal time both float sw and fan motor are normal abnormal time either one of float sw or fan motor is abnormal 2 restricted to the normal time if short circuiting disp pin cn72 on the indoor p c board in addition to short circuit of chk pin cn71 on the indoor p c board the minimum opening degree 30 pls can be set to the indoor pmv only when open disp pin the maximum opening degree 1500 pls can be obtained again p.47
• How to clear open chk pin while the system is operating it stops once but automatically returns to operation after several minutes p.47
• Check function for operation of indoor unit functions at indoor unit side p.47
• 4 test operation of indoor unit p.47
• 5 method to set indoor unit function dn code p.48
• Function code no dn code table includes all functions needed to perform applied control on site p.49
• Dn item description at shipment p.49
• D0 whether the power saving mode can be set by the remote controller p.50
• Compact 4 way cassette p.50
• Ceiling p.50
• Built in filter 4 way cassette 0000 standard filter factory default ceiling 0000 standard filter factory default concealed duct standard 0000 standard filter factory default 0001 high performance filter 65 90 p.50
• Timer setting wired remote controller 0000 available can be performed 0001 unavailable cannot be performed 0000 available p.50
• Static pressure selection concealed duct standard 0000 standard factory default 0001 high static pressure 1 0003 high static pressure 2 0006 low static pressure p.50
• Standard p.50
• Slim duct 0000 standard factory default 0001 high static pressure 1 0003 high static pressure 2 0006 high static pressure 3 p.50
• Invalid 0001 valid 0001 valid p.50
• High ceiling adjustment air flow selection 1 way cassette sh p.50
• External interlock release condition 0000 operation stopped 0001 release signal received 0000 operation stopped p.50
• Dn item description at shipment p.50
• Value type model p.51
• Value capacity p.51
• Type dn code 10 p.51
• Indoor unit capacity dn code 11 p.51
• Wiring diagram of control system using remote controller interface tcb ifcb4e2 p.52
• Control system using remote controller interface tcb ifcb4e2 p.52
• Control items p.52
• 6 applied control of indoor unit p.52
• Ventilating fan control from remote controller p.53
• Using the timer time or button select the set data at shipment p.53
• Using the setup temp or button specify the code no p.53
• Pushing returns the status to the usual stop status p.53
• Push concurrently buttons for 4 seconds or more p.53
• Push button ok if display goes on p.53
• Every pushing button the indoor unit numbers in group control are displayed successively p.53
• Using the timer time or button set to the set data p.54
• Using the setup temp or button specify the code no p.54
• Push concurrently buttons for 4 seconds or more p.54
• Push button the status returns to the usual stop status p.54
• Push button p.54
• Power peak cut from indoor unit p.54
• Leaving on prevention control p.54
• Lcd starts flashing p.55
• In the example above disconnect the remote controller connections between the indoor units and connect a wired remote controller to the target unit directly before address setting p.55
• Wiring example of 2 refrigerant lines p.55
• Turn on the power p.55
• Push and hold the and buttons at the same time for more than 4 seconds p.55
• Procedure when setting indoor units addresses first under the condition that indoor wiring has been completed and outdoor wiring has not been started manual setting using the remote controller p.55
• Pair the indoor unit to set and the remote controller one to one p.55
• Manual address setting using the remote controller p.55
• To see the indoor unit address of an indoor unit which you know the position of p.57
• Confirming the numbers and positions of indoor units p.57
• Confirming the indoor unit addresses and the position of an indoor unit using the remote controller p.57
• When checking unit numbers controlled as a group p.58
• To find an indoor unit s position from its address p.58
• Push the button to finish the procedure p.58
• Push the button left side of the button each time you push the button the indoor unit numbers are indicated one after another p.58
• Push and hold the and buttons at the same time for more than 4 seconds p.58
• To select another system address p.59
• Changing the indoor unit address using a remote controller p.60
• To change an indoor unit address using a wired remote controller p.60
• How to clear the error using the wired remote controller p.63
• Error clearing function p.63
• The following monitoring function is available if the remote controller of rbc atm32e is used p.64
• Monitoring function of wired remote controller p.64
• Target outdoor unit smms shrm mini smms series 1 2 p.65
• Target outdoor unit smms i series 4 p.66
• Led display of circuit board p.67
• D501 red lights up when the power is turned on microcomputer works blinks at 1 second intervals 0 second no eeprom or writing error blinks at 10 second intervals 5 second no disp mode blinks at 2 second intervals 1 second function change being set eeprom 2 d403 red lights up on hardware when the power is supplied to the remote controller 3 d503 yellow indoor outdoor central control lights up for the first half 5 seconds while communicating with a central control device blinks for the second half 5 seconds at 0 second intervals 0 second while communicating with the outdoor unit 4 d504 green remote controller communication the group header unit lights up for the first half 5 seconds while communicating with the remote controller blinks for the second half 5 seconds at 0 second intervals 0 second during communication between group indoor header and follower p.67
• Troubleshooting p.68
• 1 overview p.68
• The remote controllers main remote controller and central control remote controller and the interface p c board of an outdoor unit are provided with an lcd display remote controller or a 7 segment display outdoor interface p c board to display operational status using this self diagnosis feature the fault site faulty part may be identified in the event of a fault by following the method described below p.69
• The list below summarizes check codes detected by various devices analyze the check code according to where it is displayed and work out the nature of the fault in consultation with the list when investigating a fault on the basis of a display provided on the indoor remote controller or tcc link central control remote controller see the tcc link remote controller or main remote controller display section of the list when investigating a fault on the basis of a display provided on an outdoor unit see the outdoor 7 segment display section of the list when investigating a fault on the basis of a display provided on the ai net central control remote controller see the ai net central control display section of the list when investigating a fault on the basis of a wireless remote controller controlled indoor unit see the light sensor indicator light block section of the list p.69
• List of check codes indoor unit p.69
• Error detected by indoor unit p.69
• 2 troubleshooting method p.69
• Note the same error e g a communication error may result in the display of different check codes depending on the device that detects it moreover check codes detected by the main remote controller central control device do not necessarily have a direct impact on air conditioner operation p.70
• Error detected by main remote controller p.70
• Error detected by central control device p.70
• List of check codes outdoor unit p.71
• Errors detected by smms outdoor interface typical examples p.71
• Mg ctt magnet contactor p.73
• Note the above check codes are examples only and different check codes may be displayed depending on the outdoor unit configuration e g a super heat recovery multi system for details see the service manual for the outdoor unit p.74
• Errors detected by ipdu featuring in smms standard outdoor unit typical examples p.74
• When the button is pushed normal display is restored p.75
• Using main remote controller rbc amt32e p.75
• To check other error history items press the button to select another check code p.75
• Invoke the service check mode by pressing the buttons simultaneously and holding for at least 4 seconds p.75
• How to read displayed information p.75
• 3 troubleshooting based on information displayed on remote controller p.75
• The letters service check light up and the check code 01 is displayed p.76
• Push the buttons simultaneously and hold for at least 4 seconds p.76
• When a group no is selected blinking if there is an error history the unit no and the latest error history information are displayed alternately p.76
• Using tcc link central control remote controller tcb sc642tle2 p.76
• To finish off the service check push the button p.76
• To check other error history items push the button to select another check code 01 04 p.76
• To check check code relating to another group push zone and group buttons to select a group no do not push the button as it would erase the whole error history of the selected group p.76
• Using indoor unit indicators receiving unit light block wireless type p.77
• To identify the check code check the 7 segment display on the header unit to check for check codes not displayed on the 7 segment display consult the list of check codes indoor unit in 6 2 troubleshooting method goes off lighting blinking 0 seconds p.77
• Light block check code cause of fault p.77
• Light block check code cause of fault p.78
• Test run in progress p.79
• Setting incompatibility automatic cooling heating setting for model incapable of it and heating setting for cooling only model p.79
• Other indications not involving check code p.79
• Light block check code cause of fault p.79
• F31 outdoor eeprom error p.79
• For other types of outdoor units refer to their own service manuals p.80
• 4 check codes displayed on remote controller and smms outdoor unit 7 segment display on i f board and locations to be checked p.80
• Mg ctt magnet contactor 1 total shutdown in case of header unit continued operation in case of follower unit p.85
• Mg ctt magnet contactor p.92
• Errors detected by tcc link central control device p.97
• Temperature sensor characteristics p.98
• Temperature c p.98
• Resistance k ω p.98
• Indoor unit p.98
• Indoor tc2 and tcj sensors p.98
• Indoor tc1 sensor p.98
• Indoor ta sensor p.98
• 5 sensor characteristics p.98
• P c board exchange procedures p.99
• Indoor unit p.99
• 1 replacement of indoor p c boards p.99
• Method 3 p.100
• Method 2 p.100
• Remote controller operation diagram p.101
• Procedure 1 reading setting data from eeprom p.101
• Replace the faulty p c board with a service p c board p.102
• Procedure 2 replacing p c board p.102
• It is necessary to establish a one to one correspondence between the indoor unit being serviced and the remote controller p.102
• When finished push the button to bring the system back to normal off state p.103
• Use the button to set the code no dn code to 01 to set filter sign lighting time p.103
• Use the button to change the code no dn code p.103
• The button allows you to moved the code no dn code up down by one place p.103
• Repeat steps 6 and 7 until all the settings are checked p.103
• Push the left part of the button to display the indoor unit no one by one in the group control specify the indoor unit no whose service pc board was replaced this operation is not available if the unit no shows p.103
• Push the buttons simultaneously and hold for at least 4 seconds this number corresponds to the same number shown on the remote controller operation diagram p.103
• Procedure 3 writing setting data in eeprom p.103
• Next write any setting changes made on site after installation such as address settings in the eeprom perform the tasks specified in step 1 again p.103
• First set the type and capacity codes of the indoor unit p.103
• Check the value displayed with the value jotted down in procedure 1 and information proved by the customer p.103
• Eeprom location diagram the eeprom ic10 is mounted on an ic socket use a pair of tweezers etc to remove it when installing it adjust its orientation as shown in the diagram below during eeprom removal installation take care not to bend ic leads p.104
• Type code no 10 p.105
• Setup data model setup data model p.105
• Indoor unit capacity code no 11 p.105
• Code no list example p.105
• Mmu ap0154sh ap0184sh ap0244sh p.106
• Detachments p.106
• Ceiling panel rbc us21pge p.106
• 1 1 way cassette sh p.106
• No part name procedure remarks p.107
• Electric parts cover p.107
• Detachment p.107
• Attachment p.107
• Adjust cap p.107
• Detachment p.108
• Attachment p.108
• No part name procedure remarks p.108
• No part name procedure remarks p.109
• Electrical control box p.109
• Detachment p.109
• Attachment p.109
• No part name procedure remarks p.110
• Detachment p.110
• Attachment p.110
• No part name procedure remarks p.111
• Detachment p.111
• Attachment p.111
• No part name procedure remarks p.112
• Detachment p.112
• Attachment p.112
• Detachment p.113
• Attachment p.113
• No part name procedure remarks p.113
• No part name procedure remarks p.114
• Detachment p.114
• Attachment p.114
• Preparing work p.115
• No part name procedure remarks 1 p.115
• Mmu ap0074mh ap0094mh ap0124mh ap0154mh ap0184mh p.115
• Detachment p.115
• Ceiling panel rbc um11pg w e p.115
• Before work be sure to stop the power supply of the air conditioner and turn off switch of the power supply breaker otherwise an electric shock may be caused 2 be sure to put on the gloves when working otherwise an injury may be caused with parts sharp edges etc p.115
• Attachment p.115
• 2 compact 4 way cassette p.115
• No part name procedure remarks p.116
• Detachment p.116
• Attachment p.116
• Attachment p.117
• No part name procedure remarks p.117
• Detachment p.117
• No part name procedure remarks p.118
• Detachment p.118
• Attachment p.118
• No part name procedure remarks p.119
• Detachment p.119
• Attachment p.119
• No part name procedure remarks p.120
• Detachment p.120
• Attachment p.120
• No part name procedure remarks p.121
• Detachment p.121
• Attachment p.121
• Detachment p.122
• Attachment p.122
• No part name procedure remarks p.122
• No part name procedure remarks p.123
• Detachment p.123
• Attachment p.123
• No part name procedure remarks p.124
• Detachment p.124
• Attachment p.124
• Requirement p.125
• Mmd ap0074sph ap0094sph ap0124sph ap0154sph ap0184sph p.125
• Detachment p.125
• Attachment p.125
• 3 slim duct p.125
• No part name procedure remarks p.126
• Detachment p.126
• Attachment p.126
• Attachment p.127
• No part name procedure remarks p.127
• In case of drain pump incorporated model p.127
• Detachment p.127
• No part name procedure remarks p.128
• Detachment p.128
• Attachment p.128
• No part name procedure remarks p.129
• Detachment p.129
• Attachment p.129
• Mmd ap0074bh ap0094bh ap0124bh ap0154bh ap0184bh ap0244bh ap0274bh ap0304bh ap0364bh ap0484bh ap0564bh p.130
• 4 concealed duct standard p.130
• Remove the electrical control cover 2 screws p.133
• Remove the electrical control box from the side board 2 screws p.133
• Mmd ap0724h ap0964h p.133
• Loosen the screws fixing the fan m8 p.133
• 5 concealed duct high static pressure p.133
• Replacing the fan motor p.133
• Replace the motor p.133
• Remove the two screws fixing the motor band p.133
• Remove the three screws fixing the fan assembly and slide the assembly along the guide rail to pull it out 3 m5 tap tight screws p.133
• Remove the tc1 tc2 ta tcj sensor leads and pmv coil lead from the control circuit board connector p.133
• Remove the side board from the main unit m5 screws 8 pcs p.133
• Remove the fan motor lead 1 remove the fan motor lead connector 3 positions 2 remove the fan motor lead from the terminal board terminal no f1 f3 3 positions p.133
• Requirement p.134
• Removing p.134
• Mmc ap0154h ap0184h ap0244h ap0274h ap0364h ap0484h p.134
• Attaching p.134
• 6 ceiling p.134
• Removing p.135
• No component procedure remarks p.135
• Attaching p.135
• No component procedure remarks p.136
• Removing p.136
• Number of fans and attachment structure p.136
• No component procedure remarks p.137
• Attaching p.137
• Side cover p.138
• Removing p.138
• No component procedure remarks p.138
• Attaching p.138
• Removing p.139
• No component procedure remarks p.139
• Attaching p.139
• Removing p.140
• No component procedure remarks p.140
• Attaching p.140
• Heat exchanger pmv motor p.141
• Attaching p.141
• Removing p.141
• No component procedure remarks p.141
• Stop the air conditioner and turn off the main power 2 pull the upper part of the intake grille toward you remove the two strings connecting the intake grille and main unit and then pull up the intake grille to remove it 3 follow the procedure below to remove the electrical control box put on the bottom board p.142
• Mmf ap0154h ap0184h ap0244h ap0274h ap0364h ap0484h ap0564h p.142
• Electrical component assembly p.142
• 7 floor standing p.142
• Perform step 1 and 2 of electrical component assembly 2 remove the two screws fixing the upper cabinet slide the cabinet upward by approximately 30 mm and pull it out toward you 3 follow the procedure below to remove the heat exchanger assembly p.143
• Heat exchanger p.143
• Perform step 1 and 2 of electrical component assembly 2 perform step 2 of heat exchanger 3 follow the procedure below to remove the fan p.144
• Fan assembly p.144
• 8 floor standing cabinet p.145
• Removing the heat exchanger p.146
• Removing the fan assembly p.147
• Exploded diagram service parts list p.148
• 1 1 way cassette type yh p.148
• E parts p.152
• 2 1 way cassette type sh p.153
• E parts p.156
• 3 compact 4 way cassette type p.157
• E parts p.160
• 4 slim duct type p.161
• E parts p.164
• 5 concealed duct standard type p.165
• 6 concealed duct high static pressure type p.179
• E parts p.182
• E parts p.186
• 7 ceiling type p.187
• E parts p.193
• 8 floor standing type p.194
• E parts p.202
• 9 floor standing concealed type p.203
• E parts p.208
• 10 floor standing cabinet type p.209
• E parts p.217
• Warnings on refrigerant leakage p.218
• Important p.218
• Check of concentration limit p.218

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