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10. TROUBLESHOOTING

10-1.

Overview

(1) Before engaging in troubleshooting

(a) Applicable models

All Super Module Multi (SMMS-i, SMMS-e) models.

(Indoor units: MM

∗

-AP

∗∗∗

, Outdoor units: MMY-MAP

∗∗∗∗

)

(b) Tools and measuring devices required

• Screwdrivers (Philips, flat head), spanners, long-nose pliers, nipper, pin to push reset switch, etc.
• Multimeter, thermometer, pressure gauge, etc.

(c) Things to check prior to troubleshooting (behaviors listed below are normal)

(2) Troubleshooting procedure

When a trouble occurs, proceed with troubleshooting in accordance with the procedure shown below.

NOTE

Rather than a genuine trouble (see the List of Check Codes below), the problem could have been caused by a

microprocessor malfunction attributable to a poor quality of the power source or an external noise. Check for

possible noise sources, and shield the remote control wiring and signal wires as necessary.

NO.

Behavior

Possible cause

1

A compressor would not start

• Could it just be the 3-minute delay period (3 minutes after compressor

shutdown)?

• Could it just be the air conditioner having the thermostat set to OFF?
• Could it just be the air conditioner operating in fan mode or put on the timer?
• Could it just be the system going through initial communication?

2

An indoor fan would not start

• Isn’t the outside temp out of range of use temperature?

3

An outdoor fan would not start or would
change speed for no reason

• Could it just be cooling operation under low outside temperature

conditions?

• Could it just be defrosting operation?

4

An indoor fan would not stop

• Could it just be the elimination of residual heat being performed as part of

the air conditioner shutdown process after heating operation?

5

The air conditioner would not respond to a
start/stop command from a remote control

• Could it just be the air conditioner operation under external or remote

control?

Trouble

Any other trouble

Check code
displayed on interface P.C. board
of header unit

Check code
displayed on interface P.C.
board of relevant follower unit

Check trouble location
or trouble part

"E28" trouble

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Содержание MMD-AP0481HF2UL

Страница 1: ...PRINTED IN JAPAN Mar 2016 TOMO FILE No A10 1603 Revision 1 Sep 2016 Revision 2 Jun 2017 SERVICE MANUAL AIR CONDITIONER MULTI TYPE Outside Air Unit MMD AP0481HF2UL MMD AP0721HF2UL MMD AP0961HF2UL ...

Страница 2: ...28 9 2 Functions at test run 33 9 3 Method to Set Indoor Unit Function DN Code 35 9 4 Applied Control in Indoor Unit 38 10 TROUBLESHOOTING 51 10 1 Overview 51 10 2 Troubleshooting Method 52 10 3 Troubleshooting Based on Information Displayed on Remote Control 58 10 4 Check Codes Displayed on Remote Control and SHRM e Outdoor Unit 7 Segment Display on I F Board and Locations to Be Checked 62 10 5 S...

Страница 3: ...uit at secondary circuit of the high voltage transformer is applied If touching a high voltage with the naked hands or body an electric shock is caused even if using an electric insulator For details refer to the electric wiring diagram When removing the front panel or cabinet execute short circuit and discharge between high voltage capacitor terminals If discharge is not executed an electric shoc...

Страница 4: ...se abnormally high pressure may be generated in the refrigeration cycle which may result in a failure or explosion of the product or an injury to your body For an air conditioner which uses R410A never use other refrigerant than R410A For an air conditioner which uses other refrigerant R22 etc never use R410A If different types of refrigerant are mixed abnormal high pressure generates in the refri...

Страница 5: ...g equipment which includes a large amount of charged refrigerant such as a multi air conditioner in a sub room it is necessary that the density does not the limit even if the refrigerant leaks If the refrigerant leaks and exceeds the limit density an accident of shortage of oxygen is caused For the installation moving reinstallation work follow to the Installation Manual If an incorrect installati...

Страница 6: ...mix in because pipes are affected by impurities such as water oxide scales oil etc Use clean pipes Be sure to braze with flowing nitrogen gas Never use any other gas except for nitrogen 4 For the ground protection use a vacuum pump for air purge 5 R410A refrigerant is azeotropic mixture type refrigerant Therefore use liquid type to charge the refrigerant If using gas for charging composition of th...

Страница 7: ...ts which serve also for R22 are necessary as the general tools 1 Vacuum pump Use vacuum pump by attaching vacuum pump adapter 7 Screwdriver 2 Torque wrench 8 Spanner or Monkey wrench 3 Pipe cutter 9 Hole core drill 4 Reamer 10 Hexagon wrench Opposite side 4mm 5 Pipe bender 11 Tape measure 6 Level vial 12 Metal saw Also prepare the following equipments for other installation method and run check 1 ...

Страница 8: ...air control for taken in outside air Intake of the outside air often influences on the system so that the normal control of the air conditioner becomes difficult or gives a large load upon air control and cooling performance Therefore it is frequently adopted to handle the outside air to a certain condition before the outside air will enter in the main air conditioner This handling device is calle...

Страница 9: ...ne line of the multi system The allowable total capacity of the two Outside Air Units shall be 30 or less against the total capacity of the indoor units including the Outside Air Unit CORRECT INCORRECT Connection which stretches over two floors is unavailable Height difference 19 7 0 5m or more Up to two Outside Air Units occupy 30 or less against total capacity of indoor units 80 to 100 to capaci...

Страница 10: ...tup temperature according to temperature of the outside air or the operation condition of the indoor units for air conditioning in one line REQUIREMENT The air conditioner with the Outside Air Unit cannot control the room temperature For control of the room temperature an indoor unit for air conditioning is required separately Use conditions In COOL mode if temperature of the outside air is under ...

Страница 11: ... F the operation stop automatically in order to protect the equipment In this case continue the operation by selecting HEAT mode In HEAT mode if temperature of the outside air is under 23 F the operation stops automatically in order to protect the equipment When operating the air conditioner with the outside air temp under 23 F minimum 5 F set temp of the outside air to be taken in to 23 F or uppe...

Страница 12: ...ote 3 F 23 109 Operation range for SMMS e Cooling Note 2 F 41 115 Heating Note 3 F 23 109 Connecting pipe Gas pipe In 5 8 7 8 Liquid pipe In 3 8 1 2 Drain pipe In VP25 Polyvinyl chloride tube External Dia 1 1 4 internal Dia 1 Externalstatic pressure 208V H M L In WG 0 75 0 55 0 16 0 84 0 74 0 24 0 67 0 41 H L 230V H M L In WG 1 06 0 86 0 50 1 08 1 00 0 65 1 01 0 85 H L Air flow limit Lower limit c...

Страница 13: ...QY 1WVUKFG 1WVUKFG KT UWEVKQP RQTV KUEJCTIG VGOR UGPUQT KT FKUEJCTIG RQTV 1WVUKFG 1WVUKFG 5ETGY JQNG HQT FWEV OQWPVKPI TCKP RKRG EQPPGEVKPI RQTV 8 6CRGT UETGY HQT 4 RKRGU 4GHTKIGTCPV RKRG EQPPGEVKPI RQTV KSWKF UKFG NCTGF 4GHTKIGTCPV RKRG EQPPGEVKPI RQTV CU UKFG NCTGF NGEVTKE RCTVU DQZ CPIKPI DQNV OQWPVKPI RKVEJ QNG HQT JCPIKPI DQNV CPIKPI DQNV OQWPVKPI RKVEJ 5ETGY JQNG HQT FWEV OQWPVKPI 5ETGY JQNG...

Страница 14: ...KFG CPIKPI DQNV OQWPVKPI RKVEJ CPIKPI DQNV OQWPVKPI RKVEJ 5ETGY JQNG HQT FWEV OQWPVKPI 5ETGY JQNG HQT FWEV OQWPVKPI 4GHTKIGTCPV RKRG EQPPGEVKPI RQTV CU UKFG TC GF JGEM RQTV NGEVTKE RCTVU DQZ KT HNQY 5RCEG TGSWKTGF HQT KPUVCNNCVKQP CPF UGTXKEKPI 9QTM GZCORNG JGEM RQTV 5GTXKEG URCEG 1XGT 5GTXKEG URCEG 1XGT 1WVUKFG CKT WPKV 1WVUKFG CKT WPKV CPXCU FWEV KNVGT EJCODGT KNVGT CPXCU FWEV GKNKPI KT KPVCMG F...

Страница 15: ...䎬䎺䎫䎬䎥䎯䎸䎥䎯䎸䎪䎵䎼䎪䎉䎼䎩䎰䎩䎤䎱䎔䎪䎵䎼䎪䎵䎼䎋䎺䎫䎬䎌䎗䎳䎪䎵䎼䎗䎳䎋䎺䎫䎬䎌䎤䎥䎯䎮䎥䎯䎮䎲䎵䎱䎔䎕䎲䎵䎱䎩䎔䎩䎕䎖䎩䎖䎩䎗䏉䏒䏕䎃䎬䏑䏇䏒䏒䏕䎃䎸䏑䏌䏗䎦䏒䏑䏗䏕䏒䏏䎃䎳䎑䎦䎑䎃䎥䏒䏄䏕䏇䎃䎰䎦䎦䎐䎔䎗䎓䎖䎦䎱䎓䎙䎔䯴䎼䎨䎯䎌䯴䎵䎨䎧䎌䎦䎱䎔䎓䎕䎶䏘䏅䎃䎳䎑䎦䎑䎥䏒䏄䏕䏇䎷䎵䎔䯴䎺䎫䎬䎌䯴䎼䎨䎯䎌䎰䎦䎦䎐䎔䎘䎕䎓䎦䎱䎓䎔䎷䎔䎓䎦䎱䎓䎕䎦䎱䎓䎚䎗䯴䎺䎫䎬䎌䯴䎪䎵䎱䎌䎦䎱䎓䎖䎖䎯䎰䎦䎱䎓䎚䎘䯴䎺䎫䎬䎌䎳䏒䏚䏈䏕䏆䏌䏕䏆䏘䏌䏗䏖䏘䏓䏓䏏䏜䎩䎶䯴䎵䎨䎧䎌䎦䎱䎓䎖䎓䯴䎼䎨䎯䎌䎦䎱䎔䎓䎗䎗䎖䎩䎔䎧䎵䎬䎹䎨䎩䎤䎱䎲䎳䎷䎬䎲䎱䯴䎵䎨䎧䎌䎦䎱䎓䎙䎓䯴䎺䎫䎬䎌䎦䎱䎓䎛䎕䎦䎱䎔䎓䎖䯴䎪䎵䎱䎌䎦䎱䎓䎚䎖䯴䎺䎫䎬䎌䎦䎱䎓䎖䎕䎦䎱䎔䎓䎔䯴䎥䎯䎮䎌䎦䎱䎔䎓䎓䯴䎥䎵䎺...

Страница 16: ... 䎳䏘䏏䏖䏈䎃䎰䏒䏗䏒䏕䎃䎹䏄䏏䏙䏈䎧䏕䏄䏌䏑䎃䎦䏒䏑䏗䏕䏒䏏䎃䎵䏈䏏䏄䏜䎩䏄䏑䎃䎰䏒䏗䏒䏕䎃䎦䏒䏑䏗䏕䏒䏏䎃䎵䏈䏏䏄䏜䎷䏈䏐䏓䎃䏖䏈䏑䏖䏒䏕䎥䏏䏒䏚䎃䏗䏈䏐䏓䎑䎃䏖䏈䏑䏖䏒䏕䎬䏑䏗䏄䏎䏈䎃䏄䏌䏕䎃䏗䏈䏐䏓䎑䎃䏖䏈䏑䏖䏒䏕䎷䏕䏄䏑䏖䏉䏒䏕䏐䏈䏕䎵䏘䏑䏑䏌䏑䏊䎃䎦䏄䏓䏄䏆䏌䏗䏒䏕䎩䏄䏑䎃䎰䏒䏗䏈䏕䎳䏄䏕䏗䏖䫹䎱䏄䏐䏈䎩䎔䎗䎖䎩䎔䎶䏜䏐䏅䏒䏏䎩䎰䎵䎦䎷䎵䎔䎷䎤䎷䎩䎷䎦䎔䎏䎷䎦䎕䎏䎷䎦䎭䎵䎼䎓䎓䎘䱊䎓䎓䎚䎵䎼䎓䎓䎕䎳䎰䎹㧔4 0 0 㧔 QPVTQN 2 QCTF HQT PFQQT 7PKV 䎯䏌䏑䏈䎃䎩䏌䏏䏗䏈䏕 WUG 6 㧚 ޓ 8㨪 9 9 4 4 4 7 4 4 4 140 7 0 7 2 4 4 9 4 4 9 9 4 9 4 4 4 7 7 7PKV 1WVFQQT 4 1 㧔 7 0 㧔 40 0 5 㧔4 0 㧔 0 6 0 㧔9 ...

Страница 17: ... in Ø4 mm size Lead wire length 47 2 in 1200mm Vinyl tube Blue Ø0 16 in Ø4 mm size Lead wire length 78 7 in 2000mm Vinyl tube Blue TC2 sensor Ø0 24 in Ø6 mm size Lead wire length 47 2 in 1200mm Vinyl tube Black Ø0 24 in Ø6 mm size Lead wire length 78 7 in 2000mm Vinyl tube Black TCJ sensor Ø0 24 in Ø6 mm size Lead wire length 47 2 in 1200mm Vinyl tube Red Ø0 24 in Ø6 mm size Lead wire length 78 7 ...

Страница 18: ... r u s s e r p c i t a t s l a n r e t x E e t a r w o l f r i a d r a d n a t S e r u s s e r p c i t a t s l a n r e t x E m f c G W n i m f c G W n i 5 7 0 h g i H 6 0 1 h g i H 5 5 0 e l d d i M 6 8 0 e l d d i M 6 1 0 w o L 0 5 0 w o L 230V䇭䇭 V 0 3 2 A m f c 䇭cfm A 230V䇭 V 0 3 2 s c i t s i r e t c a r a h c n a F 䇭Fan characteristics 636 Tap 636 Tap ...

Страница 19: ... p c i t a t s l a n r e t x E p a t e t a r w o l f r i a d r a d n a t S e r u s s e r p c i t a t s l a n r e t x E p a t m f c G W n i m f c G W n i 4 8 0 h g i H 8 0 1 h g i H 4 7 0 e l d d i M 0 0 1 e l d d i M 4 2 0 w o L 5 6 0 w o L 230V䇭䇭 0 3 2 A m f c V䇭cfm A 230V䇭 0 3 2 s c i t s i r e t c a r a h c n a F V䇭Fan characteristics 989 989 ...

Страница 20: ...t S e r u s s e r p c i t a t s l a n r e t x E p a t e t a r w o l f r i a d r a d n a t S e r u s s e r p c i t a t s l a n r e t x E p a t m f c G W n i m f c G W n i 7 6 0 h g i H 1 0 1 h g i H 1 4 0 w o L 5 8 0 w o L 230V䇭䇭 0 3 2 A m f c V䇭cfm A 230V䇭 0 3 2 s c i t s i r e t c a r a h c n a F V䇭Fan characteristics 1237 1237 ...

Страница 21: ... 4P terminal block 2P terminal block Control P C board FM Lead wire for changing the external static pressure When changing the external static pressure is necessary change connection of this lead wire Orange at shipment of factory Orange at shipment of factory Black Blue Orange Fan motor FM Terminal block No Fan motor wiring Remarks F1 Low static pressure tap Blue F2 Middle static pressure tap Or...

Страница 22: ...eat control function in cooling operation 2 Subcool control function in heating operation 3 Cooling refrigerant oil recovery function 4 Heating refrigerant oil recovery function Connector CN104 2P Yellow 1 For detection of outdoor suction temperature Connector CN100 3P Brown 1 For super heat control of PMV in cooling operation Connector CN101 2P Black 1 For subcool control of PMV in heating operat...

Страница 23: ...om factory In cooling operation 64 F 18 C In heating operation 77 F 25 C 1 Differed from other indoor air conditioners the Outside Air Unit usually operates with the maximum capacity 1 Outside Air Unit controls PMV using the corrected value of each sensor according to the operation mode COOL SH control is performed by correcting indoor coil temp TC1 and inlet air temp from outside TA HEAT UC contr...

Страница 24: ...1 The thermostat is forcedly off by outdoor suction temperature TA COOL FAN At TA 41 F 5 C HEAT At TA 23 F 5 C 2 After fan OFF status continued for 60 minutes turn on the fan for 1 minute The forced fan OFF status continues or released by outdoor suction temperature TA in this time Release conditions COOL FAN At TA 41 F 5 C HEAT At TA 23 F 5 C 3 Other forced fan OFF release conditions Operation st...

Страница 25: ... TC1 54 F 12 C and TC2 54 F 12 C and TCJ 54 F 12 C 20 minutes passed after stop P1 Q1 TC1 50 F 10 C 41 F 5 C 32 F 0 C TC2 TCJ 14 F 10 C 7 F 14 C value When power supply is turned on if the value is under this temperature thermostat is forcedly off 2 The cooling operation is performed as follows based on the detected temperature of TC2 sensor and TCJ sensor When M zone is detected for 45 minutes th...

Страница 26: ...s 1 Estimates operation time of the indoor fan sends the filter exchange signal to remote control when the specified time 2500H passed and then displays it on LCD 2 Clears the estimate timer when received filter reset signal from remote control In this time if the specified time has passed resets the measured time and erases the LCD display Remarks Recovery operation is usually performed every 2 h...

Страница 27: ... O O RBC AMT32UL Central control display O Operation available Operation unavailable For the Outside Air Unit setting functions for air speed and air direction are not provided 1 The remote control at indoor air conditioner side becomes able to select the operable contents ofthe unit by setup at the central control side 2 Setup contents In central control mode Central control display Lights up Dis...

Страница 28: ...ircuit Display LCD Display LED Indoor unit 1 Indoor control P C board MCC 1403 PMV Indoor fan motor Power supply circuit Transformer Fan motor relay circuit External output In operation Alarm Getting ready Thermostat ON COOL HEAT FAN AC synchronization signal input circuit BUS communication circuit TA sensor TC1 sensor TC2 sensor TCJ sensor Driver Remote control communication circuit CPU H8 3039 I...

Страница 29: ...ommunication circuit TA sensor TC1 sensor TC2 sensor TCJ sensor In operation Alarm Getting ready Thermostat ON COOL HEAT FAN AC synchronization signal input circuit BUS communication circuit External output Indoor outdoor communication Outdoor unit Power source 208 230 1 60 Outdoor unit Outdoor unit Power source Power source Sameas left Sameas left 2 3 Up to 8 units can be connected Wireless remot...

Страница 30: ...2 sensor TCJ sensor In operation Alarm Getting ready Thermostat ON COOL HEAT FAN AC synchronization signal input circuit BUS communication circuit External output Indoor outdoor communication Outdoor unit Power source 208 230 1 60 Outdoor unit Outdoor unit Power source Power source Sameas left Sameas left 2 3 Wireless remote control kit Remote control communication circuit Sensor circuit Display s...

Страница 31: ...put CN080 TCJ sensor CN102 TC2 sensor CN101 TC1 sensor CN100 CHK CN071 DC5V DISP CN72 DC5V Remote control CN41 Optional output CN060 DC12V HA T10 CN061 DC12V Remote control power supply LED D203 Also used for communication of the central control system CN040 PMV output CN082 DC12V Microcomputer operation LED D002 Power supply transformer Secondary side AC11V 14V 20V CN075 Power supply CN067 ...

Страница 32: ...om remote control DN 31 HA Start Stop input J01 Provided None Pulse At shipment from factory Static input selection Enables disables start stop control via remote control ON during operation Answer back of HA ON during output of alarm ON during defrosting of outdoor unit ON during real thermo ON Compressor ON ON when operation mode is COOL ON when operation mode is HEAT ON when indoor fan is on Wh...

Страница 33: ...on for 4 seconds or more TEST is displayed at the display part and the mode enters in TEST mode Push ON OFF button Change the mode from COOL to HEAT using MODE button Do not use MODE button for other mode except COOL HEAT modes The temperature cannot be adjusted during test run The trouble detection is performed as usual After test run push ON OFF button to stop the operation Display on the displa...

Страница 34: ...tor 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 CN072 on the indoor P C board in addition to short circuit of CHK pin CN071 on the indoor P C board the minimum opening degree 30pls can be set to the indoor PMV only When open DISP pin the maximum opening degree 1500pls can be obtained again How to clear Open C...

Страница 35: ...in group control Then the fan and louver of the selected indoor unit move 2 Each time the Select unit side of the UNIT LOUVER button button of left side is pushed one of the indoor unit Nos under group control is displayed in turn Then the fan of the selected indoor unit move 3 Use the button to select the CODE No DN code of the desired function 4 Use the button to select the desired SET DATA asso...

Страница 36: ...Automatic selection by connected outdoor unit 0000 Heat pump 0001 Cooling only No AUTO HEAT display 0000 1 way Air Discharge Cassette Type 0001 4 way Air Discharge Cassette Type 0037 0000 Undefined 0001 0034 0001 No 1 unit 0028 No 28 unit 0001 No 1 unit 0064 No 64 unit 0000 Single 0001 Group master 0002 Group follower 0000 None 0001 Provided 0000 Normal JEMA 0001 Card input shuffling omission 0000...

Страница 37: ...PROM mounted on service P C board Indoor Unit Capacity DN code 11 1 Default value stored in EEPROM mounted on service P C board Value Type Model 0016 Outside Air Unit MMD AP HF2UL Value 0000 0017 0021 0023 Capacity Invalid 048 type 072 type 096 type ...

Страница 38: ...ion signal Output during normal operation 3 Trouble signal Output during alarm Serial communication trouble or indoor outdoor protective device operation 2 Wiring diagram using remote control interface TCB IFCB 4UL Input IFCB 4UL No voltage ON OFF serial signal Output No voltage contact for operation check display Contact capacity Below Max AC240V 0 5A 1 2 3 4 5 6 CN61 T10 YEL 1 2 3 4 1 2 3 4 5 6 ...

Страница 39: ...t turns on 2 Every pushing UNIT LOUVER button button of left side the indoor unit numbers in group control are displayed successively In this time the fan of the selected indoor unit only turns on 3 Using the temperature setup button specify the CODE No 31 31 31 31 31 4 Using the timer time button select the SET DATA At shipment 0000 0000 0000 0000 0000 The setup data are as follows 5 Push button ...

Страница 40: ... taken out from the card switch box When the card switch box does not perform the above contact operation convert it using a relay with b contact 2 Operation Handle the wired remote control switch in the following procedure Use the wired remote control switch when the system is being turned off 1 Push concurrently buttons for 4 seconds or more 2 Using the temperature setup button specify the CODE ...

Страница 41: ...line address 7 Push button OK when display goes on 8 Group address Using the temperature setup buttons set 14 14 14 14 14 to the CODE No 9 Using timer time buttons set 0000 0000 0000 0000 0000 to Individual 0001 0001 0001 0001 0001 to Header unit and 0002 0002 0002 0002 0002 to follower unit 10 Push button OK when display goes on 11 Push button Setup completes The status returns to the usual stop ...

Страница 42: ...this procedure the indoor units in group control stop Procedure The indoor unit numbers in the group control are successively displayed and fan louver and drain pump of the corresponding indoor unit are turned on Follow to the procedure during operation 1 Push and buttons simultaneously for 4 seconds or more Unit No ALL is displayed Fans of all the indoor units in the group control operate 2 Every...

Страница 43: ...ss using UNIT LOUVER SWING FIX button Ø 3 Determine the selected line address using button The address of the indoor unit connected to the refrigerant piping of the selected outdoor unit is displayed and the fan is on Ø 4 Every pushing UNIT LOUVER button button of left side the indoor unit No in the identical piping is displayed one after the other Only fan of the selected indoor unit start operat...

Страница 44: ...group the fan of the selected unit will be energized Ø 3 Push the TEMP buttons repeatedly to select 13 13 13 13 13 for CODE No Ø 4 Push the TIME buttons repeatedly to change the value indicated in the SET DATA section Ø 5 Push the SET button to save address Ø 6 Push UNIT LOUVER button button of left side repeatedly to select another indoor unit addresses to change Repeat steps 4 through 6 to conti...

Страница 45: ...ss is not displayed Ø 4 button push up down the indoor address of the SET DATA The set data is changed to a new address Ø 5 Push button to determine the set data Ø 6 Every pushing UNIT LOUVER button button of left side the indoor unit No in the identical piping is displayed one after the other Only fan of the selected indoor unit start operation Repeat the Procedures 4 to 6 to change all the indoo...

Страница 46: ...is counted as 0005 0005 0005 0005 0005 Æ Æ Æ Æ Æ 0004 0004 0004 0004 0004 Æ Æ Æ Æ Æ 0003 0003 0003 0003 0003 Æ Æ Æ Æ Æ 0002 0002 0002 0002 0002 Æ Æ Æ Æ Æ 0001 0001 0001 0001 0001 Æ Æ Æ Æ Æ 0000 0000 0000 0000 0000 with 5 seconds interval When 0000 0000 0000 0000 0000 appear the check code was cleared However counting from 0005 is repeated on the display screen 4 When pushing button the status beco...

Страница 47: ...ce monitor mode The service monitor goes on and firstly the temperature of the CODE No 00 00 00 00 00 is displayed Ø 2 Push button to change CODE No CODE No to the CODE No to be monitored For display code refer to the following table Ø 3 Push UNIT LOUVER button button of left side to change to item to be monitored The sensor temperature of indoor unit or outdoor unit in its refrigerant line and th...

Страница 48: ...2 60 61 62 U3 70 71 72 PMV1 opening PMV3 opening PMV4 opening 0500 500pls 0058 58 mode 0080 8 ton 0010 Heating recovery controlled 0010 Pressure release controlled 0001 Discharge temperature release controlled 0100 U2 outdoor unit release controlled 0024 24 oF 0642 64 2rps 0135 13 5A 1 1 1 pls pls pls 56 57 59 5A 5B 5D 5E 5F 90 91 92 93 66 67 69 6A 6B 6D 6E 6F 76 77 79 7A 7B 7D 7E 7F Compressor 1 ...

Страница 49: ...pls A A A 4350 435 psi 0080 80 F 0500 500pls 0135 13 5A Outdoor unit individual data 2 4 CODE No Data name Display format Unit Remote control display example U1 50 51 52 53 54 55 56 57 58 5B 5D 5E U2 60 61 62 63 64 65 66 67 68 6B 6D 6E Compressor 1 revolutions Compressor 2 revolutions Compressor 3 revolutions Outdoor fan mode Compressor IPDU 1 heat sink temperature Compressor IPDU 2 heat sink temp...

Страница 50: ...onfirmed because fan of the selected indoor unit will operate Procedure 3 1 Using temp setup buttons specify CODE No 33 CODE No 33 Fahrenheit display 2 Using timer buttons change the line address from 0001 to 0000 3 Push button In this time the setup finishes when the display changes from flashing to lighting Procedure 4 After verifying the content change push button Setup is determined When pushi...

Страница 51: ...not start Could it just be the 3 minute delay period 3 minutes after compressor shutdown Could it just be the air conditioner having the thermostat set to OFF Could it just be the air conditioner operating in fan mode or put on the timer Could it just be the system going through initial communication 2 An indoor fan would not start Isn t the outside temp out of range of use temperature 3 An outdoo...

Страница 52: ...ot set Address setting has not been performed for one or more indoor units also detected at outdoor unit end M I S 9 0 L Indoor capacity not set Capacity setting has not been performed for indoor unit M I S 0 2 L Duplicated central control address There is duplication in central control address setting L30 Detected indoor unit No SIM Indoor external trouble input interlock Unit shutdown has been c...

Страница 53: ...et as master remote control in two remote control control alarm and shutdown for header unit and continued operation for follower unit Operation Timer Ready Main remote control Check code Display of receiving unit Typical fault site Description of trouble TCC LINK central control Outdoor 7 segment display Indicator light block Sub code Flash C05 No indication when main remote control also in use F...

Страница 54: ...er outdoor address There is duplication in outdoor addresses set manually E26 Address of outdoor unit from which signal is not received normally E26 Signal lack of outdoor unit Follower outdoor unit initially communicating normally fails to do so reduction in number of follower outdoor units connected Outdoor follower unit trouble 8 2 E o N t i n u r o o d t u o d e t c e t e D 8 2 E Outdoor heade...

Страница 55: ... 04 TK4 sensor trouble 05 TK5 sensor trouble H16 Oil level detection circuit trouble No temperature change is detected by temperature sensor for oil level detection TK1 TK5 despite compressor having been started M I S 4 0 L 4 0 L Duplicated outdoor refrigerant line address Identical refrigerant line address has been assigned to outdoor units belonging to different refrigerant piping systems L06 Nu...

Страница 56: ...uid backflow detection trouble State of refrigerant cycle circuit indicates liquid backflow operation P15 01 TS condition 02 TD condition n o i t c e t e d k a e l s a G T L A 5 1 P Outdoor suction temperature sensor TS1 detects sustained and repeated high temperatures that exceed standard value T L A 7 1 P 7 1 P Outdoor discharge TD2 temperature trouble Outdoor discharge temperature sensor TD2 de...

Страница 57: ...1 02 Compressor 2 03 Compressor 3 T L A 7 0 P Heat sink overheating trouble Temperature sensor built into IPM TH detects overheating or has been short circuited P22 0 Element short circuit 1 Position detection circuit trouble 3 Motor lock trouble 4 Motor current trouble C TH Sensor temperature trouble D TH Sensor short circuit release trouble E Vdc voltage trouble Put in Fan IPDU No in mark Outdoo...

Страница 58: ...the SERVICE CHECK mode by pushing the buttons simultaneously and holding for at least 4 seconds The letters SERVICE CHECK light up and the check code 01 is displayed indicating the trouble history This is accompanied by the indoor unit No to which the trouble history is related and a check code 2 To check other trouble history items push the bu another check code Check code 01 Check code 04 oldest...

Страница 59: ...f refrigerant piping communication trouble during automatic address setting E23 Faulty transmission in outdoor outdoor communication E25 Duplicated follower outdoor address E26 Faulty reception in outdoor outdoor communication Signal lack of outdoor unit E28 Outdoor follower unit trouble E31 IPDU communication trouble sub MCU communication trouble P01 Indoor AC fan trouble P13 Outdoor liquid backf...

Страница 60: ...ensor TD1 H06 Abnormal drop in low pressure sensor Ps reading Abnormal drop in oil level Protective shutdown of outdoor unit H07 H08 Trouble in temperature sensor for oil level detection circuit TK1 TK2 TK3 TK4 or TK5 H15 Wiring installation trouble or detachment of outdoor discharge temperature sensor TD2 H16 Oil level detection circuit trouble Trouble in outdoor unit TK1 TK2 TK3 TK4 or TK5 circu...

Страница 61: ...y automatic cooling heating setting for model incapable of it and heating setting for cooling only model Light block Check code Cause of fault Operation Synchronized blinking Timer Ready Operation Timer Synchronized blinking Ready Alternate blinking Operation Timer Ready Other indications not involving check code ...

Страница 62: ...t be established maintained upon turning on of power or during communication Check for defect in indoor P C board E12 E12 01 Indoor outdoor communication 02 Outdoor outdoor communication I F Automatic address starting trouble All stop Indoor automatic address setting is started while automatic address setting for equipment in other refrigerant line is in progress Outdoor automatic address setting ...

Страница 63: ...dance with automatic address setting method explained in Address setting section E26 E26 Address of outdoor unit from which signal is not received normally I F Signal lack of outdoor unit All stop Outdoor unit initially communicating normally fails to return signal for specified length of time Backup setting is being used for outdoor units Check power supply to outdoor unit Is power turned on Chec...

Страница 64: ...rt circuit Check connection of TE1 TE2 sensor connectors Check resistance characteristics of TE1 TE2 sensors Check for defect in outdoor P C board I F F07 F07 01 TL1 sensor trouble 02 TL2 sensor trouble 03 TL3 sensor trouble I F TL1 sensor trouble All stop Sensor resistance is infinity or zero open short circuit Check connection of TL1 TL2 TL3 sensor connector Check resistance characteristics of T...

Страница 65: ...op 1 Outdoor P C board I F does not operate normally Check power supply voltage Check power supply noise Check for defect in outdoor P C board I F H01 H01 01 Compressor 1 side 02 Compressor 2 side 03 Compressor 3 side IPDU Compressor breakdown All stop Inverter current detection circuit detects overcurrent and shuts system down Check power supply voltage AC460V 10 Check for defect in compressor Ch...

Страница 66: ...ect in outdoor P C board I F H08 H08 01 TK1 sensor trouble 02 TK2 sensor trouble 03 TK3 sensor trouble 04 TK4 sensor trouble 05 TK5 sensor trouble I F Trouble in temperature sensor for oil level detection All stop Sensor resistance is infinity or zero open short circuit Check connection of TK1 sensor connector Check resistance characteristics of TK1 sensor Check for defect in outdoor P C board I F...

Страница 67: ...g circuit capillary and faulty operation in check valve Check for refrigerant entrapment inside compressor No temperature change is detected by TK5 despite compressor having been started Check for disconnection of TK5 sensor Check resistance characteristics of TK5 sensor Check for connection trouble involving TK1 TK2 TK3 TK4 and TK5 sensors Check for clogging in oil equalizing circuit capillary an...

Страница 68: ... between outdoor units Check for defect in outdoor P C board I F L31 I F Extended IC trouble Continued operation There is part failure in P C board I F Check outdoor P C board I F P01 Indoor unit Indoor fan motor trouble Stop of corresponding unit Check the lock of fan motor AC fan Check wiring L30 L30 Detected indoor address Indoor unit External interlock of indoor unit Stop of corresponding unit...

Страница 69: ...balance pipe Check SV3B circuit for clogging Check defect in outdoor P C board I F Check capillary of oil separator oil return circuit for clogging Check for leakage of check valve in discharge pipe convergent section MG CTT Magnet contactor P07 P07 01 Compressor 1 side 02 Compressor 2 side 03 Compressor 3 side IPDU I F Heat sink overheating trouble All stop Temperature sensor built into IPM TH is...

Страница 70: ...efect in main body of 4 way valve Check for coil defect in 4 way valve and loose connection of its connector Check resistance characteristics of TS1 and TE1 TE2 sensors Check output voltage characteristics of Pd and Ps pressure sensors Check for wiring trouble involving TE1 and TL1 sensors P20 P20 I F Activation of high pressure protection All stop During cooling operation Pd sensor detects pressu...

Страница 71: ...CC LINK TCC LINK central control device transmission trouble Continued operation Central control device is unable to transmit signal Check for defect in central control device Check for defect in central control communication line Check termination resistance setting C06 TCC LINK TCC LINK central control device reception trouble Continued operation Central control device is unable to transmit sign...

Страница 72: ... C 4 20 5 15 14 10 23 5 32 0 41 5 50 10 59 15 68 20 77 25 86 30 95 35 104 40 113 45 122 50 131 55 140 60 149 65 158 70 167 75 176 80 Resistance kΩ Temperature F C 4 20 5 15 14 10 23 5 32 0 41 5 50 10 59 15 68 20 77 25 86 30 95 35 104 40 113 45 122 50 131 55 140 60 149 65 158 70 167 75 176 80 Resistance kΩ 10 15 5 20 0 100 150 50 200 0 10 15 5 20 0 100 150 50 200 Resistance kΩ 55 F 10 C or below Re...

Страница 73: ...in severe personal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage NOTE is used to highlight suggestions which will result in enhanced installation reliability or operation The manufacturer shall not assume any liability for the damage cause...

Страница 74: ...rrives Continuing to use the air conditioner in the trouble status may cause mechanical problems to escalate or result in electric shocks or other failure If 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...

Страница 75: ...ile is blinking Start to use the remote control after has disappeared NOTE The LCD may temporarily be blurred due to static electricity 1 SETTING indicator Displayed when setting the timer or other functions 2 Operation mode indicator Indicates the operation mode selected 3 Check code indicator Displayed when the protective device activates or a problem occurs 4 Time display Indicates time concern...

Страница 76: ...rs 2 12 5 7 3 1 4 6 9 11 10 8 13 14 15 16 Operation section Once the settings have been configured all you need to do is push the button from then on 1 button Fan speed select button Only High is displayed 2 button Timer set button Use to setup the timer 3 button TEST button Use only for service During normal operation do not use this button 4 button Use when a ventilator commercially available is...

Страница 77: ... air conditioner with the Outside Air Unit controls temperature of the supply air so that it is close to the setup temperature of the remote control However temperature of the supply air may not be close to the setup temperature according to temperature of the outside air or the operation condition of the indoor units for air conditioning in one line REQUIREMENT The air conditioner with the Outsid...

Страница 78: ...le for chemical plants such as liquefied carbon dioxide refrigerant plants Do not install the air conditioner in locations where iron or other metal dust is present If iron or other metal dust adheres to or collects on the interior of the air conditioner it may spontaneously combust and start a fire A failure may occur in certain locations such as the following Areas with large amount of oil dropl...

Страница 79: ...usly against the air discharge of the outdoor unit During heating When dust or dirt is excessively adhered to the air filter of the indoor unit When the air discharge of the indoor unit is blocked NOTE When the protective device activates turn off the power switch remove the cause and then restart running Cooling Heating operations Each unit can be controlled individually However indoor units conn...

Страница 80: ... flowing sound of refrigerant or draining sound of dehumidifier Slight clacking sound is heard This is sound generated when heat exchanger etc expand and contract slightly due to change of temperature indication is lit When cooling operation cannot be performed because another indoor unit performs heating operation Is outdoor temperature out of operation temperature range indication is lit When th...

Страница 81: ...e control The check code is only displayed during the operation If the display disappears operate the air conditioner according to the following Confirmation of check code log for confirmation When a problem occurred on the air conditioner the check code log can be confirmed with the following procedure The check code log is stored in memory up to 4 check code The log can be confirmed from both op...

Страница 82: ...he air conditioner at a height 8 2 4 m or more from the floor If you insert your hands or others directly into the unit while the air conditioner operates it is dangerous because you may contact with revolving fan or active electricity If refrigerant gas has leaked during the installation work ventilate the room immediately If the leaked refrigerant gas comes in contact with fire noxious gas may g...

Страница 83: ...ulation of Liquid pipe connecting section 8 For heat insulation of hanging bracket AP048 type 4 pieces 3 2 80 mm AP072 096 type 4 pieces 5 5 140 mm 3 System control of Outside Air Unit System able to be combined The Outside Air Unit is connectable to SMMS Super Modular Multi system However this is not connectable to SHRM Super Heat Recovery Multi system Keep the height difference between the Outsi...

Страница 84: ...ts precision instruments or art works The quality of the items stored may be degraded Locations where high frequencies are generated by inverter equipment in house power generators medical equipment or communication equipment Malfunctioning or control trouble in the air conditioner or noise may adversely affect the equipment s operation Locations where there is anything under the unit installed th...

Страница 85: ...5 9 flare AP072 AP096 55 1398 49 6 1260 Ø1 2 12 7 flare Ø7 8 22 2 brazing B Hanging bolt pitch 4 M0 4 10 hanging bolt Locally procured 50 7 1288 Hanging bolt pitch Electrical control box A 3 4 87 52 3 1328 Refrigerant pipe connecting port Liquid side C Drain pipe connecting port Refrigerant pipe connecting port Gas side D 19 5 496 2 6 66 8 6 218 5 9 150 1 9 49 49 8 1266 0 7 18 2 4 60 27 5 699 33 3...

Страница 86: ...not adjacent to each other Install the filter chamber on the intake side of the indoor unit Attach the long life prefilter and high efficiency filter to the filter chamber to remove dust Send outside air to the inside of the indoor unit and the area being air conditioned If no air filter is installed dust will collect in the heat exchanger which may cause the air conditioner to fail or to leak Be ...

Страница 87: ...5 65 5 0 4 9 0 7 19 Example of construction 1 Air intake duct Connect the air intake duct Locally procured to the inlet flange Wrap aluminum tape around connecting part between the air intake port flange and duct or provide sealer so that air does not leak For the outside air intake port attach a hood so that outside air is sucked from lower side And attach wire netting etc to the air intake of th...

Страница 88: ... 500 600 700 Fan motor current A Middle static pressure tap High static pressure tap Low static pressure tap Air flow rate cfm MMD AP072 type Standard air volume 989 cfm Lower limit air volume 693 cfm Upper limit air volume 1088 cfm REQUIREMENT Set a volume damper to the air supply duct and then adjust the air volume so that it is kept in the range of 70 to 110 against the standard air volume 1 2 ...

Страница 89: ...ctory Change the wire connection if change of the external static pressure is required due to the duct resistance REQUIREMENT When the external static pressure was changed enter the changed static pressure value in the identification plate of the unit MMD AP048 AP072 type MMD AP096 type Terminal block No Fan motor wiring Remarks F1 Low static pressure tap Blue F2 Middle static pressure tap Orange ...

Страница 90: ...the provided heat insulator Pipe material size and insulator The following materials for piping work and insulating process are locally procured Connecting drain pipe REQUIREMENT Using adhesive agent for vinyl chloride connect the hard vinyl chloride pipes certainly so that water does not leak It takes some time to dry and indurate the adhesive agent Refer to the manual of adhesive agent Do not ap...

Страница 91: ... 0 0 4 3 8 9 5 0 52 13 2 1 2 12 7 0 65 16 6 5 8 15 9 0 78 19 7 Outer dia of connecting pipe mm Tightening torque Unit ft lbs N m 3 8 9 5 24 31 33 42 1 2 12 7 37 46 50 62 5 8 15 9 46 57 63 77 Work using double spanner Tightening torque of flare pipe connections Pressure of R410A is higher than that of R22 Approx 1 6 times Therefore using a torque wrench tighten the flare pipe connecting sections wh...

Страница 92: ...y is little it is dangerous because overheat or seizure may be caused Indoor unit power supply For the power supply of the indoor unit prepare the exclusive power supply separated from that of the outdoor unit Power supply Control wiring Central control wiring 2 core with non polarity wires are used for the control wiring between indoor unit and outdoor unit and Central control wiring To prevent n...

Страница 93: ...on a wire to hang down the electrical control box at servicing or other purpose The low voltage circuit is provided for the remote control Do not connect the high voltage circuit Remove the cover of the electrical control box by taking off the mounting screws 2 positions Tighten the screws of the terminal block and fix the wires with cord clamp attached to the electrical control box Do not apply t...

Страница 94: ...erating after the power has been turned on Before the air conditioner was shipped from the factory all units are set to STANDARD factory default If necessary change the indoor unit settings The settings are changed by operating the wired remote control The settings cannot be changed using only a wireless remote control simple remote control or group control remote control by itself so install a wi...

Страница 95: ...ting the remote control wires from the remote control terminal blocks A B of the indoor unit connected with a remote control to the remote control terminal blocks A B of the other indoor unit Non polarity For address setup refer to the Installation Manual attached to the outdoor unit SET DATA Filter sign term 0000 None 0001 150 H 0002 2500 H Factory default 0003 5000 H 0004 10000 H SET DATA 0000 0...

Страница 96: ... indoor UNIT No appear on the display part of the remote control The check code is only displayed during the operation If the display disappears operate the air conditioner according to the following Confirmation of check code log for confirmation Confirmation of check code log When a problem occurred on the air conditioner the check code log can be confirmed with the following procedure The check...

Страница 97: ... units exceeds 120 of combined capacity of outdoor units SMMS i only I F E18 Communication trouble between indoor units Indoor E19 E19 00 Header is nothing 02 Two or more header units Outdoor header units quantity trouble I F E20 E20 01 Outdoor of other line connected 02 Indoor of other line connected Other line connected during automatic address I F E23 E23 Sending trouble in communication betwee...

Страница 98: ...ck detection trouble I F P15 P15 01 TS condition 02 TD condition ALT Gas leak detection I F P17 P17 ALT Discharge temp TD2 trouble I F P18 P18 ALT Discharge temp TD3 trouble I F P19 P19 Detected outdoor unit number ALT 4 way valve inverse trouble I F P20 P20 ALT High pressure protective operation I F P22 P22 0 IGBT circuit 1 Location detection circuit trouble 3 Motor lock up trouble 4 Motor curren...

Страница 99: ...cover Remove the electric parts box cover Fan assembly 1 The model in the left photo is AP0721 AP0961 types 2 The one fan is provided to AP0481 type two are provided to AP0721 AP0961 types respectively AP0481 type has the same configuration as AP0721 AP0961 types Remove Faston terminals of which wire color are blue 1 orange 2 black 3 in the fan motor lead wires Remove the white and blue connectors...

Страница 100: ... box Removed status Take off the self tapping M4 screws 3 positions Cover plate Remove the cover plate Rmove the M5 screws 8 positions Status which all the fan assembly are pulled out Pull out the fan toward you Rmove the self tapping M4 screws 3 positions 4 Pull out the fan toward you ...

Страница 101: ...he fan assembly from the air intake unit Relay terminal block cover there is the relay terminal block inside of it Fan motor Fan case Fan Motor base Remove the connector and Faston terminal Remove the ground screw Remove the relay terminal block cover ...

Страница 102: ...move the fan motor assembly from the fan assembly Take off M4 screws 2 positions Z view Z view Take off M4 screws 2 positions Take off M4 screws 2 positions Take off M8 screws 4 positions mounting the motor base ...

Страница 103: ...t the air blows off and the fan does not hit with the fan case and also check there is no abnormal noise Take off M4 screws 4 positions from the bell mouth Loosen the setscrews When replacing the fan motor set it so that the model name label directs upward Remove the fan Loosen M4 scre Loosen M4 screws 2 positions of the tightening band ws 2 positions of the tightening band remo remove the tighten...

Страница 104: ...ignation and confirm the integrity of the refrigerating cycle by conducting a test operation etc Replacement procedure Method 1 If it is possible to turn on the indoor unit and read the setting data from the P C board to be replaced via a wired remote control Reading EEPROM data Procedure 1 Ø Replacing P C board and turning on power Procedure 2 Ø Writing EEPROM data in new EEPROM Procedure 3 Ø Res...

Страница 105: ... selected indoor unit comes on with the louvers swinging depending on the model 3 The button allows you to move the CODE No DN code up down by one place 4 First change the CODE No DN code from 10 10 10 10 10 to 01 01 01 01 01 To set filter sign lighting time Jot down the setting data displayed 5 Change the CODE No DN code using the button Again jot down the setting data displayed 6 Repeat step 5 u...

Страница 106: ...e remote control wiring to the terminals turn on the indoor unit and proceed to Procedure 3 If this method cannot be used proceed to the alternative method described below Case 2 C If it is not possible to selectively turn on the indoor unit being serviced Case 2 a Remove the CN041 connectors of all other indoor units in the same group b Turn on the indoor unit and proceed to Procedure 3 Be sure t...

Страница 107: ...from flashing to steady Be sure to perform the following setting 7 Use the buttons set to the CODE No DN code to C8 8 Use the buttons set to the 0001 9 Push the button The display should change from flashing to steady 10 Push the button to bring the system back to normal off state 5 Next write any setting changes made on site after installation such as address settings in the EEPROM Perform the ta...

Страница 108: ... 0000 Available Filter sign lighting time Dirty state of filter Central control address Heating suction temp shift PRE DEF indication selection Cooling only Type Indoor unit capacity See below table Refrigerant line address Indoor unit address Group adress Automatic restart from power cut Option input selection CN080 Thermo output selection T10 HA terminal T10 selection Sensor selection Timer set ...

Страница 109: ...9 226 201 234 221 222 MMD AP0721HF2UL MMD AP0961HF2UL MMD AP0721HF2UL MMD AP0961HF2UL MMD AP0481HF2UL MMD AP0481HF2UL 226 241 242 201 209 207 235 221 222 231 203 204 202 229 228 230 210 211 212 213 214 215 236 237 238 205 206 223 224 225 216 217 ...

Страница 110: ...BODY PMV BODY PMV EVAPORATOR ASSY EVAPORATOR ASSY CASE FAN FAN NUT FLARE 3 8 IN SOCKET 3 8 IN BONNET 3 8 IN NUT FLARE 1 2 IN SOCKET BONNET 1 2 IN STRAINER DIA21 STRAINER DIA45 BAND MOTOR LEFT BAND MOTOR RIGHT NUT FLARE 5 8 IN SOCKET 5 8 IN BONNET 5 8 IN TERMINAL BLOCK JX0 3B OWNER S MANUAL STRAINER HOLDER SENSOR HOLDER SENSOR TS SHEET PMV PAN ASSY DRAIN PAN ASSY DRAIN PIPE ASSY LIQUID PIPE ASSY LI...

Страница 111: ...C F6 TC2 TCJ SENSOR SERVICE TG F4 TC1 TRANSFORMER TT 12 TERMINAL 4P TERMINAL BLOCK 2P 20A TERMINAL BLOCK 4P 20A CAPACITOR 500V 4UF CAPACITOR 400V 8MF PC BOARD ASSY MCC 1403 SENSOR SERVICE TA FUSE BLOCK 30A 250V RELAY LY2F L AC230V FUSE 10A P C BOARD ASSEMBLY MCC 1520 2 1 1 1 1 1 1 1 2 1 1 1 1 2 1 1 1 1 2 2 1 2 2 2 2 1 2 1 1 1 1 2 2 1 2 2 2 2 1 Location No Part No Description AP0481HF2UL Q ty Set M...

Страница 112: ...entration buildings however the installation of multi air conditioner systems is on the increase because of the need for effective use of floor space individual control energy conservation by curtailing heat and carrying power etc Most importantly the multi air conditioner system is able to replenish a large amount of refrigerant compared with conventional individual air conditioners If a single u...

Страница 113: ...85 JAPAN Copyright 2017 TOSHIBA CARRIER CORPORATION ALL Rights Reserved Revision record First issue Mar 2016 Revision 1 English was corrected Page 3 4 5 6 22 23 25 39 40 41 43 45 46 50 51 52 54 62 Sep 2016 Revision 2 The contents change of Description of service parts Jun 2017 Page 111 ...

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