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4. REFRIGERANT PIPING SCHEMATIC DRAWING

Outdoor unit
8, 10, 12, 14HP
Model: MMY-MUP0801

∗∗∗∗∗

, MUP1001

∗∗∗∗∗

, MUP1201

∗∗∗∗∗

, MUP1401

∗∗∗∗∗

TE2

TS3

TL3

PMV4

TS1

Fan

Fan motor

PMV1

4-way valve

High-pressure
sensor

Low-pressure
sensor

Accumulator

Liquid side

Service valve

Gas side

Service valve

Subcool
Heat exchanger

Solenoid

valve

Capillary

tube

Check

valve

Check

joint

Strainer

Temperature

sensor

Symbol

Distributor

SV3F

TE1

TG2

TG1

r h

sin

Sub heat exchanger

PMV2

Main heat exchanger

TL2

TL1

TK1

TD1

sso

(In

SV41

High-
pressure
switch

SV3D

Oil s

Содержание SMMS-u MMY-MUP0801HT8

Страница 1: ...File No A1C 2101 Super Modular Multi System u MMY MUP0801HT8 MMY MUP1001HT8 MMY MUP1201HT8 MMY MUP1401HT8 MMY MUP14A1HT8 MMY MUP1601HT8 MMY MUP1801HT8 MMY MUP2001HT8 MMY MUP2201HT8 MMY MUP2401HT8 u ...

Страница 2: ...TROL AND FUNCTIONS 62 9 1 Optional Connector Specifications of Indoor P C Board 62 9 2 Test Operation of Indoor Unit 64 9 3 Service Support Function 70 10 7 Segment Display Function 92 10 1 Display of System Information Displayed on Header Outdoor Unit Only 92 10 2 Display of Outdoor Unit Information Displayed on Each Outdoor Unit 93 10 3 Display of Outdoor Cycle Data Displayed at Each Outdoor Uni...

Страница 3: ...aled Duct High Static Pressure Type MMD UP 1HP E TR Made in Thailand model MMD AP 6HP1 E TR Made in Thailand model SVM 20095 SVM 16044 Slim Duct Type MMD UP 1SPHY E Made in China model MMD AP 4SPH1 E TR Made in Japan model MMD AP 6SPH1 E TR Made in Japan model A10 2006 A10 033 A10 033 Under Ceiling Type MMC UP 1HP E TR Made in Thailand model MMC AP 8HP E Made in Thailand model SVM 20095 SVM 17015 ...

Страница 4: ...e motor valve coil Pulse motor valve coil Pulse motor valve coil Packedvalve Packedvalve Packedvalve 2 way valve coil 2 way valve coil 2 way valve coil Heatsink Heatsink Pressure sensor SW Pressure sensor Pressure sensor Fan motor Propeller Fan PS741 T Propeller Fan PF581 T 4 way valve coil 2 way valve coil 2 way valve coil Accumlator Accumlator Accumlator Reactor ASM Screw S LA771A3TB 20M LA1200K...

Страница 5: ...sistance value White Red COM Yellow Red COM Orange Red COM Blue Red COM at 20 C 5 PMV Pulse Motor Valve coil Measure each winding resistance by digital tester Model PMV1 PAM MD12TF Model PMV2 3 HAM BD28TCTH 1 Position Resistance value White Red COM Yellow Red COM Orange Red COM Blue Red COM at 20 C 6 4 way valve coil Measure each winding resistance by digital tester Model SQ A2522G at 20 C 7 2 way...

Страница 6: ...nal block Noise Filter P C board 1 Noise Filter P C board 2 Line filter Interface P C board Inverter P C board for Compressor 1 Inverter P C board for Compressor 2 Inverter P C board for fan Magnet Contactor Magnet Contactor PTC Thermistor JXO 6004 MCC 1748 MCC 1748 MCC 1747 MCC 1729 MCC 1729 MCC 1734 FC 1S FC 2S MZ32 101R 2 3 4 5 6 7 8 9 10 11 AC600V 75A 4P 0 9mH AC460V 50A 50A 75A 13A AC500V ...

Страница 7: ...4 3 CN305 WHI RED GRN BLU GRN BLU WHI RED 3 CN500 3 CN513 CN514 CN501 CN600 FM1 CN512 CN510 CN511 Uv Uh Uv Uh RED 㹋 CN303 5 PMV4 CN378 WHI CN381 WHI CN502 WHI t 2 1 YEL TO CN507 TO OUTDOOR UNIT 5 1 4 2 3 6 WHI SV3F SV3D SV41 CN324 2 3 4 5 6 CN910 WHI 5 RB CN01 CN02 BLK WHI RED BLU 3 2 2 2 S Uc Uc S 5 4 3 2 HEATER1 2 1 2 1 t 2 1 TD1 t 4 3 TK1 6 5 8 7 3 2 1 4 TG1 TG2 5 7 6 9 8 TE1 TE2 t 4 3 TS1 t 6 ...

Страница 8: ...12 14HP Model MMY MUP0801HT8 MMY MUP1001HT8 MMY MUP1201HT8 MMY MUP1401HT8 NFC Low pressure sensor Check joint Low pressure TO sensor Check joint Liquid pipe Accumulator High pressure sensor High pressure SW Check joint High pressure Compressor ...

Страница 9: ... Accumulator TO sensor Check joint Liquid pipe Check joint Low pressure Check joint High pressure High pressure sensor High pressure SW Compressor 14A 16 18 20HP Model MMY MUP14A1HT8 MMY MUP1601HT8 MMY MUP1801HT8 MMY MUP2001HT8 ...

Страница 10: ...or Accumulator TO sensor Check joint Liquid pipe High pressure sensor High pressure SW1 High pressure SW2 Compressor 1 Compressor 2 Check joint High pressure Check joint Low pressure 22 24HP Model MMY MUP2201HT8 MMY MUP2401HT8 ...

Страница 11: ...nverter P C board for Compressor 1 MCC 1729 Communication terminal block Power supply terminal block Noise Filter P C board 1 MCC 1748 Magnet Thermistor Contactor Remove the Interface P C board sub assembly The Interface P C board sub assembly Interface P C board MCC 1747 Inverter P C board for fan MCC 1734 50 ...

Страница 12: ...Communication terminal block Power supply terminal block Noise Filter P C board 2 MCC 1748 Thermistor Magnet Contactor Remove the Interface P C board sub assembly The Interface P C board sub assembly Interface P C board MCC 1747 75 Inverter P C board for fan 2 MCC 1734 Inverter P C board for fan 1 MCC 1734 Line Filter ...

Страница 13: ...k Noise Filter P C board 2 MCC 1748 Thermistor 1 Magnet Contactor 1 Remove the Interface P C board sub assembly The Interface P C board sub assembly Interface P C board MCC 1747 Inverter P C board for fan 1 MCC 1734 50 Inverter P C board for fan 2 MCC 1734 Inverter P C board for Compressor 1 1 MCC 1729 Magnet Contactor 2 Thermistor 2 Line Filter ...

Страница 14: ...mp case heater 1 CN331 Comp case heater 2 CN332 Base plate heater CN335 Sensor input CN502 㧙㧙 TK1 TD1 CN507 TO CN378 TL3 TL2 TL1 TS3 TS1 CN380 TD2 TK2 CN384 TG3 TE3 CN381 TE2 TE1 TG2 TG1 PD sensor CN501 PS sensor CN500 SW101 102 103 SW104 105 106 TERMINATOR SW100 190mm UART communication CN600 NFC CN851 USB CN860 Detection of power supply open phase and miswiring CN910 59 59 59 5 0 0 0 0 0 0 10 1...

Страница 15: ... 190mm Power supply Input L1 CN01 Power supply Input L2 CN02 Power supply Input N CN04 Power supply Output L3 CN23 Power supply Input L1 CN21 Power supply Input L2 CN22 Power supply output to I F CN101 Power supply output to Comp CN102 Vcc output to I F CN103 1290W 1Comp 2Fan model K4 Compressor 14A 16 18 20HP 1290W 2Comp 2Fan model A3 Compressor 22 24HP 990W 1Comp 1Fan model A3 Compressor 8 10 12...

Страница 16: ...o FAN CN22 Vdc output to FAN CN21 Compressor output W phase CN203 Compressor output V phase CN202 Compressor output U phase CN201 Vcc output to FAN CN103 8pin 4pin White White 190mm 190mm For inverter address setting SW800 1290W 2Comp 2Fan model A3 Compressor 22 24HP 990W 1Comp 1Fan model A3 Compressor 8 10 12 14HP 1290W 1Comp 2Fan model K4 Compressor 14A 16 18 20HP 0 0 0 0 0 0 0 0 0 6 0 0 0 0 4 6...

Страница 17: ... board MCC 1754 190mm UART communication CN802 CN803 Vcc input CN100 Vcc output CN101 Vdc input from COMP CN01 Vdc input from COMP CN02 For inverter address setting SW800 Fan motor output CN301 0 0 0 0 0 0 0 0 59 0 USB communication to I F CN01 USB connector CN02 screw ...

Страница 18: ...sensor Low pressure sensor Accumulator Liquid side Service valve Gas side Service valve Subcool Heat exchanger SV Solenoid valve Capillary tube Check valve Check joint Strainer Temperature sensor Symbol Distributor SV SV3F TE1 TG2 TG1 Inverter heat sink Sub heat exchanger PMV2 Main heat exchanger TL2 TL1 TK1 TD1 SV Compressor Inverter SV41 High pressure switch SV3D SV Oil separator ...

Страница 19: ...ide Service valve Gas side Service valve M Fan Fan motor 4 way valve Subcool Heat Exchanger PMV4 Compressor 2 Inverter Compressor 1 Inverter SV41 High pressure switch High pressure switch SV42 Oil separator SV SV3D SV SV3F TL1 High pressure sensor Accumulator 22 24HP M Fan Fan motor TO PMV1 TG3 TG1 PMV2 TG2 PMV3 TL2 TE1 Left side Main heat exchanger TE2 Left side Sub heat exchanger Right side Main...

Страница 20: ...dvance the code Press and hold SW05 to advance in 5 steps Press SW06 to return the code Press and hold SW05 to return in 5 steps 5 When SW04 is pressed the 7 segment display blinks d and the setting data being set is displayed 6 Change setting data with SW05 or SW06 Press SW05 to advance the data Press SW06 to return the setting data 7 Push and hold SW04 for more than 2 seconds When the flashing s...

Страница 21: ...it to change settings for The fan of the selected outdoor unit runs The outdoor unit can be confirmed for which to change settings 3 Push OFF timer button to confirm the selected outdoor unit 4 Push the menu button to make Code No flash Change Code No with setting button 5 Push the menu button to make Set data flash Change Set data with setting button 6 Push OFF timer button to complete the set up...

Страница 22: ...d Control 0015 0 Forcedly stop 00F Setting value during Demand Control Expansion 1 0008 60 010 Setting Value during Demand Control Expansion 2 0004 80 00b Power consumption upper limit standard value setting Heating For power demand _Low 0000 0kW 00C Power consumption upper limit standard value setting Cooling For power demand _High 0000 0kW 00d Power consumption upper limit standard value setting...

Страница 23: ...is off Transmission circuit trouble at the interface side P C board failure Replace the interface PC board E06 After address setup communication from all the indoor units is interrupted under the condition that a normal operation can be performed Check and correct disconnection of the indoor outdoor communication line the communication line between the header unit and the leading indoor unit Check...

Страница 24: ...ted communication line between outdoor units Fig 2 Correct wiring Turn all SW08 switches to off SW08 setup trouble E20 01 Alternate blinking Address setup is performed with connecting an indoor outdoor communication line between outdoor units Fig 3 Correct wiring Address setup is performed under the condition of connecting multiple refrigerant lines Fig 3 Correct wiring ON 1 2 SW100 Indoorremote c...

Страница 25: ... unit After modification of wiring set up the addresses again and check the number of connected indoor units The number of indoor units connected to a group is few in groupoperation from an indoor remote controller The indoor remote controller is not connected with wire Miswiring of the indoor remote controller Using the main indoor remote controller connected to a group start a test operation spe...

Страница 26: ...xchanger temperature sensor TC1 trouble Heat exchanger temperature sensor TC1 has been open short circuited F10 ALT Room air temperature sensor TA TSA trouble Room air temperature sensor TA has been open short circuited F11 ALT Discharge air temperature sensor TF TFA trouble Discharge air temperature sensor TF has been open short circuited F29 SIM P C board or other indoor trouble Open Short circu...

Страница 27: ...09 Duplicated master remote control Both remote controllers have been set as master remote controller in two remote controller control alarm and shutdown for header unit and continued operation for follower unit Operation Timer Ready Remote control Check code Display of receiving unit Typical fault site Description of trouble Central control Outdoor 7 segment display Indicator light block Sub code...

Страница 28: ... fan trouble P10 Indoor overflow trouble P12 Indoor DC fan trouble P13 Outdoor liquid backflow detection trouble P03 Outdoor discharge TD1 temperature trouble P04 Activation of outdoor high pressure SW P05 Open phase power failure Inverter DC voltage Vdc trouble MG CTT trouble P07 Outdoor heat sink overheating trouble Poor cooling of electrical component IGBT of outdoor unit P15 Gas leak detection...

Страница 29: ...p in low pressure sensor Ps reading Protective shutdown of outdoor unit H07 Abnormal drop in oil level H08 Trouble in temperature sensor for oil level detection circuit TK1 TK2 H15 Wiring installation trouble or detachment of outdoor discharge temperature sensor TD2 H16 Oil level detection circuit trouble Trouble in outdoor unit TK1 TK2 circuit L03 Duplicated indoor group header unit L05 Duplicate...

Страница 30: ...incompatibility automatic cooling heating setting for model incapable of it and heating setting for cooling only model Light block Check code Cause of trouble Operation Synchronized blinking Timer Ready Operation Timer Synchronized blinking Ready Alternate blinking Operation Timer Ready Other indications not involving check code ...

Страница 31: ...on 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 E28 E28 O Detected outdoor unit No utdoor header unit detects trouble relating to follower outdoor unit ...

Страница 32: ...re sensor TD2 wiring trouble Wiring installation trouble or detachment of outdoor discharge temperature sensor TD2 has been detected H16 01 TK1 oil circuit trouble 02 TK2 oil circuit trouble 02 Switch setting trouble of outdoor unit Switch setting trouble of outdoor units when HWM Hot water module is connected H16 Oil level detection circuit trouble No temperature change is detected by temperature...

Страница 33: ...e of refrigerant cycle circuit indicates liquid backflow operation P15 P15 ALT 01 TS condition Indoor unit overflow Gas leak detection 02 TD condition Outdoor suction temperature sensor TS1 detects sustained and repeated high temperatures that exceed standard value P17 Outdoor discharge TD2 temperature trouble Outdoor discharge temperature sensor TD2 detects abnormally high temperature 4 way valve...

Страница 34: ...rrent is detected while inverter compressor is turned off P22 ALT P22 Compressor breakdown Outdoor fan P C board trouble 1 Fan P C board 1 2 Fan P C board 2 Outdoor fan P C board detects trouble P26 1 Compressor 1 2 Compressor 2 Activation of IPM compressor short circuit protection Short circuit protection for compressor motor driver circuit components is activated momentary overcurrent P29 P26 P2...

Страница 35: ...ess or network adaptor E03 Check order in which power was turned on for indoor and outdoor units Check indoor address setting Check indoor outdoor tie cable Check outdoor terminator resistor setting SW100 Bit 2 Indoor unit Indoor outdoor communication circuit trouble detected at indoor end Stop of corresponding unit Indoor unit is not receiving signal from outdoor unit E04 Check power supply to in...

Страница 36: ...heck for any change made to remote controller connection group individual since indoor address setting Indoor unit I F Duplicated indoor address Duplicated indoor address All stop More than one indoor unit are assigned same address E08 E08 Check remote controller settings Check remote controller P C boards Remote controller Duplicated master remote controller Stop of corresponding unit In two remo...

Страница 37: ...are more than one outdoor header units in one line There is no outdoor header unit in one line E19 E19 Check whether the outdoor unit of other systems or the indoor unit is connected to Uv U1 U2 line or Uc U5 U6 line I F 01 Connection of outdoor unit from other line 02 Connection of indoor unit from other line Connection to other line found during automatic address setting All stop Equipment from ...

Страница 38: ...C board trouble check Communication trouble between MCU and Sub MCU All stop Communication between MCU and Sub MCU stopped 80 Check connection of TCJ sensor connector and wiring Check resistance characteristics of TCJ sensor Check for failure in indoor P C board Indoor TCJ sensor trouble Indoor unit Stop of corresponding unit Sensor resistance is infinity or zero open short circuit F01 Check conne...

Страница 39: ...PMV4 operation in cooling mode F12 F12 Failure in IPM built in temperature sensor Replace Compressor P C board TH sensor trouble Compressor P C board 1 Compressor 1 side 2 Compressor 2 side All stop Sensor resistance is infinity or zero open short circuit F13 F13 Check connection of TO sensor connector Check resistance characteristics of TO sensor Check for failure in outdoor P C board I F TO sens...

Страница 40: ...mpressor 2 side All stop Inverter current detection circuit detects overcurrent and shuts system down H01 H01 Check current detection circuit wiring Check failure in outdoor P C board Compressor Current detection circuit trouble Compressor P C board 1 Compressor 1 side 2 Compressor 2 side All stop Current flow of at least specified magnitude is detected despite inverter compressor having been shut...

Страница 41: ... outdoor P C board I F TD2 sensor miswiring incomplete insertion I F All stop Discharge temperature of TD2 does not increase despite compressor 2 being in operation H15 H15 Check connection of TK2 sensor connector Check resistance characteristics of TK2 sensor Check for failure in outdoor P C board I F All stop Sensor resistance is infinity or zero open short circuit Main remote controller Outdoor...

Страница 42: ... displayed on indoor unit other than priority indoor unit I F No of priority indoor units All stop More than one indoor units have been set up as priority indoor unit L06 L06 Check indoor addresses Connection of group control cable to standalone indoor unit Indoor unit Stop of corresponding unit There is at least one standalone indoor unit to which group control cable is connected L07 Check indoor...

Страница 43: ...ciency in refrigerant quantity Check for failure in 4 way valve Check for leakage of SV4 circuit Check SV4 circuit wiring or installation trouble in SV41 or SV42 Discharge temperature TD1 trouble I F All stop Discharge temperature TD1 exceeds 115 C P03 P03 Check model setting of P C board for servicing outdoor I F P C board Check connection of UART communication connector Check compressor P C boar...

Страница 44: ...ature sensor TH Check shortage of refrigerant Check outdoor service valves Check connection of TL2 sensor Check resistance characteristics of TL2 sensor Check resistance characteristics of TO sensor Check malfunctions of Pd and Ps sensors Check outdoor I F P C board malfunction Check PMV2 and PMV3 Heat sink overheating trouble Heat sink dewing trouble 01 Compressor 1 heat sink trouble 02 Compresso...

Страница 45: ...gging Check resistance characteristics of TD1 and TD2 sensors Check indoor filter for clogging Check piping for clogging Check SV4 circuit for leakage or coil installation trouble Gas leak detection TD condition I F 02 TD condition All stop Protective shutdown due to sustained discharge temperature TD1 or TD2 at or above 108 C for at least 10 minutes is repeated four times or more Check float swit...

Страница 46: ...g operation Pd sensor detects pressure equal to or greater than 3 85 MPa During heating operation Pd sensor detects pressure equal to or greater than 3 6 MPa P20 P20 Main remote controller Outdoor 7 segment display Check code Sub code Check outdoor service valves gas side liquid side to confirm full opening Check outdoor PMVs PMV1 2 3 4 for clogging Check resistance characteristics of TD2 sensor C...

Страница 47: ...cription System status Check code detection condition s Check items locations Check for failure in central control device Check for failure in central control communication line Check termination resistance setting Central control device transmission trouble Central control device Continued operation Central control device is unable to transmit signal C05 Main remote controller Outdoor 7 segment d...

Страница 48: ...ompressor check the phase to phase winding resistances and winding to outdoor cabinet resistance using a multimeter Earth trouble It is normal if the winding to outdoor cabinet resistance is 10MΩ or more Inter winding short circuit It is normal if the phase to phase resistances are in the 0 1 1 0Ω range Use a digital multimeter How to Check Outdoor Fan Motor 1 Turn off the power supply 2 Remove fa...

Страница 49: ... operation 3 Check code Output present while alarm e g serial communication trouble or operation of protective device for indoor outdoor unit being activated Wiring diagram of control system using Remote location ON OFF control box TCB IFCB 4E2 Input IFCB 4E2 No voltage ON OFF serial signal Output No voltage contact in operation and check code indication Contact capacity Max AC 240 V 0 5 A 1 2 3 4...

Страница 50: ... of the selected indoor unit turns on 2 Every pushing UNIT LOUVER button left side of the button 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 setup temp or button specify the CODE No 31 4 Using the timer time or button select the SET DATA At shipment 0000 The setup data are as follows 5 Push button OK...

Страница 51: ...t be used 1 2 1 2 3 4 3 4 5 6 5 6 CN61 T10 YEL In the figure the contact indicates a status that the card is taken out Power supply Outside contact Card switch box etc Procured locally Relay procured locally Connecting to the CN61 connector NOTE Determine the cable length between the indoor control P C board and the relay within 3m Indoor control P C board 1 2 1 2 CN4 EXCT RED In the figure the co...

Страница 52: ...rmostat OFF EXCT Please refer to the manual of Application control kit for a detailed setting Code No DN Code No DN ON Status that card is inserted OFF Status that card is taken out Manual prohibition release Manual operation Card Input 1 Manual prohibition Operation stop Manual prohibition release Automatic operation Card Input 2 Manual prohibition Operation stop Operation status continues Do not...

Страница 53: ...n units on the outdoor fan to allow the installation of a duct with a maximum external static pressure not greater than specified in the table below If a discharge duct with a resistance greater than 15 Pa 1 5 mmAq is to be used enable this function The maximum external static pressures of single units are shown below Table 1 In the case of combined use of multiple outdoor units set all the units ...

Страница 54: ...y operation a single unit only 1 Outdoor unit setup method header unit 2 Indoor unit setup method for priority indoor unit mode The setting can be changed only when the system is at rest Be sure to turn off the system prior to this operation Outdoor DN Code O DN Setting Operation O DN 18 0000 Priority heating factory default O DN 18 0001 Priority cooling O DN 18 0002 Priority operation based on No...

Страница 55: ... 0001 Priority set 0001 No priority set 0000 5 Push the button The setup is finished when the display changes from flashing to steady 6 Upon finishing the setup push the button This finalizes the setting When the button is pushed the display goes blank and the system returns to normal off state Note that the system does not respond to remote controller operation for about 1 minute after the button...

Страница 56: ...lue SW105 1 009 0 Factory default Power peak cut Control For one input function Limit a maximum capacity Header unit CN513 blue SW105 1 009 1 Power peak cut Control For one input function Limit a maximum power 2 Header unit CN513 blue SW105 2 009 0 Factory default Power peak cut Control Enhanced Function Limit a maximum capacity Header unit CN513 blue SW105 2 009 1 Power peak cut Control Enhanced ...

Страница 57: ...r each DN Code You can set it on any of 180 to 189 A maximum 10 types of the notice codes can be set on a single indoor unit 2 A notice code mark will be displayed on the remote controller when any of the 10 notice codes set is received into the remote controller If the notice code that is not set is received a notice code mark is not displayed Set the notice code that you want from the remote con...

Страница 58: ...for 5 second the notice code histories recorded in the outdoor unit are cleared 7 segment display n c C L 3 Notice Code List Setting the compressor maintenance time to detect the time exceeded Enter the compressor maintenance time to be detected as time over into Outdoor unit DN Code O DN 007 Input values 1 000 Detection time e g When O DN 007 20 is set 20 1 000 20 000 hours The notice code 001 is...

Страница 59: ...ditions are satisfied Defrosting is started after defrosting of system II ends Defrosting of system II ends During individual defrosting in an outdoor linked system the system will be deemed to be defrosting even if the header unit is performing heating operations System II defrosting Defrosting of system II ended heating Indoor unit Uh Heating U3 U4 Indoor unit Indoor unit System II Outdoor unit ...

Страница 60: ...system cooperation master unit set 01D 0002 or 0003 to outdoor unit set to master unit in outdoor DN code 01F 0001 Prohibition 0003 3 system cooperation master unit 0000 None vassal 01E System cooperation defrosting settings 2 zone address 0000 None 0001 when not using central controller for control for system cooperation defrosting 0001 to 0128 when using central controller 0001 to 0128 Addresses...

Страница 61: ... of remaining frost even if other systems are performing system cooperation defrosting 1 State where heating operations are continuing while system II is performing cooperation defrosting 2 If normal defrosting conditions are satisfied defrosting is started without awaiting system II to end defrosting System I Heating Heating 1 Defrosting 2 Heating System II Heating Defrosting Heating Heating Exam...

Страница 62: ...This check is used to check indoor operation Performs operation of indoor fan H Louver horizontal and Drain pump ON without communication with outdoor and remote controller CN72 White DISP Exhibition mode DISP mode input 0V Communication is available by indoor unit and remote controller only When the power is turned on Shortening time of timer Always CN309 Yellow Output power supply for option AC2...

Страница 63: ... installed to the outside㧕 Perform the settings having option abnormal input from the remote controller DN 2A 0002 0001 CN071 White Check mode input 0V CHK Operation check Use for operation check of indoor unit Performs operation of indoor fan H Louver horizontal and Drain pump ON without communication with outdoor and remote controller㧕 CN072 White DISP mode input 0V DISP Exhibition mode Communic...

Страница 64: ...ormal time the minimum opening degree 30pls of the indoor PMV can be set only when both CHK pin CN71 and DISP pin CN72 on the indoor P C board are short circuited If the shortcircuit at DISP pin CN72 is opened the indoor PMV will be at the maximum opening degree 1500pls How to clear Open CHK pin While the system is operating it stops once but automatically returns to operation after several minute...

Страница 65: ...e 11 ࠉlist type Line address 0001 No 1 unit to 0064 No 30 unit TCC LINK 00Un 0099 Unfixed 0001 No 1 unit to 0128 No 128 unit TU2C LINK 00Un Unfixed When using U series remote controller 0099 Unfixed Other than U series remote controller Indoor unit address 0001 No 1 unit to 0064 No 64 unit TCC LINK 00Un 0099 Unfixed 0001 No 1 unit to 0128 No 128 unit TU2C LINK 00Un Unfixed When using U series remo...

Страница 66: ...g 0001 Standard 0003 Cycle swing Louver fixed position 0000 Release 0001 Horizontal discharge position 0000 Not fixed Louver No 1 0005 Downward discharge position Louver fixed position 0000 Release 0001 Horizontal discharge position 0000 Not fixed Louver No 2 0005 Downward discharge position Louver fixed position 0000 Release 0001 Horizontal discharge position 0000 Not fixed Louver No 3 0005 Downw...

Страница 67: ... device control 0000 No central device control Remote controller use is possible 0001 Central device control Remote controller use is impossible 㸸OFF 2 Communication protocol can be automatically switched with the setup in the outdoor unit during installation For Central control address DN 03 Indoor unit address DN 13 FS unit address DN FE Remote controller Communication type Display order U serie...

Страница 68: ... UP007 to 018 Factory default 0002 65 Pa 0003 50 Pa UP036 to 056 Factory default 0004 80 Pa 0005 100 Pa 0006 120 Pa Slim Duct type Set data 0000 10 Pa Standard Factory default 0001 20 Pa High static pressure 1 0003 35 Pa High static pressure 2 0006 50 Pa High static pressure 3 Concealed Duct High Static Pressure Type 6 HP or less Set data 0000 100 Pa Standard Factory default 0001 50 Pa 0002 75 Pa ...

Страница 69: ...ole Hot Water Module MMU UP SH MMU UP H MMU UP WH MMU UP YH MMD UP HP MMC UP HP MMK UP HP MML UP H MML UP BH MMF UP H MMU UP MH MMD UP M H MMD UP HFP MML UP NHP MMW UP LQ Indoor Unit Capacity DN code 11 Value Capacity 0000 0041 0001 0002 0003 0004 0005 0006 0007 0008 0009 0010 0011 0012 0013 0015 0017 0018 0021 0023 0024 0025 0000 is default value stored in EEPROM mounted on service P C board Type...

Страница 70: ...atches with the expected system capacity Check No of outdoor units Set the rotary switches SW01 SW02 SW03 on the interface P C board of the header unit to 1 3 3 Then No of outdoor units connected to the system is displayed on 7 segment display A Check that this display surely matches with the expected No of outdoor units Check No of indoor units No of units with cooling thermostat ON Set the rotar...

Страница 71: ...played Confirmation of check results 2 Press the push switch SW05 on the interface P C board of the header unit for 2 seconds or more The indoor address in which trouble is being detected is displayed on 7 segment display B If there are multiple indoor address in which trouble is being detected they are successively exchanged and displayed When SW05 is turned on again the display returns to displa...

Страница 72: ...ion B 00 00 is displayed on Section B for 5 seconds Individual start Starts the specified indoor unit Notes The contents follow to the setup of remote controller The other indoor units keep the status as they are Setup Set SW01 to 16 set SW02 and SW03 to address No 1 to 128 to be started and press SW04 for 2 seconds or more Release Return SW01 SW02 SW03 to 1 1 1 Section A Section B Section A Displ...

Страница 73: ...pped ON OFF from the outdoor unit In the case above follow the steps below 1 Point the wireless remote controller at the receiving unit on the indoor unit and press the START STOP button on the wireless remote controller 2 Confirm that the receiving unit sounds Pi and the operation lamp green on the receiving unit lights up and then start stop ON OFF the indoor unit from the outdoor unit Interface...

Страница 74: ...ard of the header unit to 2 5 1 C is displayed on 7 segment display A Test run is displayed on the remote controller of the indoor unit to be operated Check that C is displayed on 7 segment display B on the interface P C board of the header unit Press SW04 on the same board for 2 seconds or more Return SW01 SW02 SW03 on the interface P C board of the header 1 3 2 4 unit to 1 1 1 or press the push ...

Страница 75: ...o be operated Check that H is displayed on 7 segment display B on the interface P C board of the header unit Set SW01 SW02 SW03 on the interface P C board of the header unit to 2 6 1 H is displayed on 7 segment display A Be sure to turn on power at the indoor side before power ON of outdoor unit Return SW01 SW02 SW03 on the interface P C board of the header 2 3 1 4 unit to 1 1 1 or press the push ...

Страница 76: ...or unit to be operated Check that 7 segment display B on the interface P C board of the header unit changed to C Match SW01 SW02 SW03 on the interface P C board of the header unit to 2 5 1 7 segment display A changes to F Be sure to turn on power of the indoor unit and then turn on power supplies at outdoor unit side Return SW01 SW02 Sw03 on the interface P C board of the header 2 3 1 4 unit to 1 ...

Страница 77: ...ischarge temperature does not change though COOL or HEAT has been set up from the remote controller misconnection is considered Press SW04 on the same board for 2 seconds or more The indoor unit to be started operates Press the push switch SW05 on the interface P C board of the header unit for 2 seconds or more After test operation return the rotary switches SW01 SW02 SW03 on the interface P C boa...

Страница 78: ... operation Match the rotary switches on the interface P C board of the header unit to the following table If a check code is already displayed with SW01 SW02 SW03 being 1 1 1 return the status to normal one according to troubleshooting and then execute a test operation The unit which is not given with priority by heating priority control cooling priority control and selection of cooling or heating...

Страница 79: ...y pushing buttons simultaneously for 4 seconds or more 2 Using buttons set CODE No to FF 3 The display in Section A in the following figure is counted with interval of 5 seconds as 0005 0004 0003 0002 0001 0000 When the count arrives 0000 the check code is cleared However counting from 0005 is repeated on the display 4 When button is pushed the status returns to the normal status Check code cleari...

Страница 80: ...RBC ASCU11 C 1 Push the OFF timer button for over 10 seconds 2 Each time the or button is pushed the recorded troubleshooting history is displayed in sequence 3 Push the menu button for over 10 seconds doing so deletes the entire troubleshooting history of the indoor unit 4 After you have finished checking push the ON OFF button to return to normal mode 2 4 1 3 ...

Страница 81: ...utdoor and the indoor units 2 Turn on the power of the indoor unit prior to the power of the outdoor unit If the power is turned on in reverse order a check code E19 No of header unit trouble is output NOTE After power reset it requires usually 3 minutes to power on due to the initial communication of the system In some cases it requires max 10 minutes 7 segment display A B E r 7 segment display A...

Страница 82: ...play select switches on the interface P C board of the header unit as follows Set SW01 SW02 SW03 to 2 4 1 Press the push switch SW04 on the same board for 2 seconds or more Checking display of the connected remote controller flashes Press the push switch SW05 on the 1 2 3 4 interface P C board of the header unit for 2 seconds or more Other end conditions 1 10 minutes has passed 2 SW01 SW02 or SW03...

Страница 83: ... Operation Open fully Set the switches SW01 SW02 SW03 on the interface P C board of the header unit to 2 3 1 and press SW04 for 2 seconds or more Display appears on 7 segment display for 2 minutes as follows P FF Close fully Set the switches SW01 SW02 SW03 on the interface P C board of the header unit to 2 3 1 and press SW05 for 2 seconds or more Display appears on 7 segment display for one minute...

Страница 84: ...W03 on the interface P C board of the outdoor unit to 2 1 3 When H r is displayed press the push switch SW04 for one second or longer which changes the display to H r and this control is started Method to switch solenoid valve PMV display 1 Solenoid valve display is made immediately after starting control The 7 segment display is H r 2 Pressing the push switch SW06 switches the display to P which ...

Страница 85: ... PMV will return to normal control Press the push switch SW05 for one second or longer Set the rotary switch SW01 to other than 2 Rotary switch Operation method example Operation of PMV 1 Push switch 7 segment display pulse motor valve PMV display Opening SW01 SW02 SW03 SW04 Change PMV opening 2 3 Used in solenoid valve selection P1 Long press 1 second Long press 1 second Long press 1 second Long ...

Страница 86: ...n starts operation Max mode operation 4 After that by changing the setup number of the switches SW02 and SW03 7 segment display B and the fan mode are changed Mode output pattern of the fan is as follows Clear This function is cleared by one of the following operations 1 When SW01 setting number was changed to other number 2 Press switch SW05 was pressed for 2 seconds or more SW02 SW03 7 segment d...

Страница 87: ...ment display A 4 The fan of the outdoor unit in which problem occurred starts operation within approx 10 seconds after E 1 was displayed In case to operate the fans in all the normal outdoor units 1 Check that the switches SW01 SW02 SW03 on the interface P C board in the header unit are set to 1 1 1 2 Press the push switches SW04 and SW05 at the same time for 2 seconds or more 3 E 0 is displayed o...

Страница 88: ... 45ºC SW02 9 Service support function list SW01 SW02 SW03 7 segment display A Function contents 2 1 1 J C Refrigerant circuit and control communication line check function Cooling operation J H 2 Refrigerant circuit and control communication line check function Heating operation Indoor PMV forced full open function P 3 Indoor remote controller discriminating function A 1 4 Cooling test operation f...

Страница 89: ...compressor has stopped and then press and hold SW04 for at least 5 seconds 3 Checking the record of the initial value Set SW01 to 03 as shown in the following table to confirm the record of the initial value Clear Return SW01 SW02 SW03 on the Interface P C board in the outdoor unit to 1 1 1 NOTE a During the operation the slow leaks can be detected However if the air conditioner cannot cooling dow...

Страница 90: ...irstly displayed 2 Push the temperature setup buttons to select the CODE No to be monitored For displayed codes refer to the table next page 3 Push button to determine the item to be monitored Then monitor the sensor temperature or operation status of indoor unit and the outdoor unit in the corresponding refrigerant line 4 Pushing button returns the display to the normal display RBC ASCU11 C 1 Pus...

Страница 91: ...0 1 X 1 I t n e r r u c 1 r o s s e r p m o C 67 77 87 97 A7 A 0 1 X 2 I t n e r r u c 2 r o s s e r p m o C 68 78 88 98 A8 s p r 0 1 X s n o i t u l o v e r 1 r o s s e r p m o C 69 79 89 99 A9 s p r 0 1 X s n o i t u l o v e r 2 r o s s e r p m o C 6A 7A 8A 9A AA e d o m 8 5 8 5 0 0 e d o m 1 X e d o m n a f r o o d t u O 6B 7B 8B 9B AB Inverter of Compressor 1 heat sink temperature TH1 X1 C 6C ...

Страница 92: ...LED segment lighting pattern B 10 Refrigerant oil recovery operation A Oil recovery in cooling C1 Normal C B 11 Automatic addressing A B 12 Power peak cut A Refrigerant recovery in heating H1 Normal H Ad During automatic addressing FF Normal dU Normal During 50 90 capacity operation _50 _90 While control is based on BUS line input E50 E90 13 B 1 1 A h c H C n U 1 0 Displays optional control status...

Страница 93: ...g of SW05 restores normal display 6 Outdoor fan mode A B 7 Compressor backup A FP Mode 0 to 63 0 to 63 C b B Displays compressor backup setting status Normal Compressor No 1 backup 1 Compressor No 2 backup 1 8 A B 9 Displays control output status of solenoid valve A H 1 H 0 3 1 3 0 3 0 3 0 4 4 B 0 0 0 1 0 0 0 1 0 0 0 1 1 0 0 0 1 0 4 way valve ON 4 way valve OFF 10 11 SV3D OFF SV3D OFF SV3D OFF SV3...

Страница 94: ...l t S 1 Data is displayed in Data TS3 sensor data Data with negative value is displayed as Letter symbol t S 3 Data TE1 sensor data Letter symbol t E 1 Data TE2 sensor data Letter symbol t E 2 Data TL1 sensor data Letter symbol t L 1 Data TL2 sensor data Letter symbol t L 2 Data TL3 sensor data Letter symbol t L 3 Data TO sensor data Letter symbol t o Data SW01 SW02 SW03 TK1 sensor data Letter sym...

Страница 95: ...No 1 Outdoor unit No U2 to U5 B Indicates which compressor is ON Any unconnected compressors is represented by B 1 0 When compressor No 1 is ON 0 1 When compressor No 2 is ON 5 Fan operation mode A U SW03 setting No 1 Outdoor unit No U2 to U5 B At rest F 0 In mode 63 F 6 3 6 Release signal A U SW03 setting No 1 Outdoor unit No U2 to U5 B Normal r Upon receiving release signal r 1 7 Oil level judgm...

Страница 96: ...and TC2 with SW06 8 Indoor temperature sensor data2 B Switch temperature display of TF TA2 and TA3 with SW06 5 Indoor HP capacity B 0 3 0 4 0 5 0 6 0 8 1 0 1 2 1 7 2 0 2 5 3 0 3 2 4 0 5 0 6 0 8 0 10 0 16 0 20 0 1 16 1 8 Indoor request command S code operation mode B represents mode COOL C HEAT H F FAN F OFF S represents S code 0 to F 9 1 1 Outdoor DN code setting Outdoor DN code setting Indoor BUS...

Страница 97: ...Results Display example 7 segment display oL oL oL Oil level is normal for compressors 1 and 2 Oil level is low for compressors 1 and 2 Oil level is low for compressor 2 and normal for compressors 1 Judgment result for compressor 2 Judgment result for compressor 1 0 0 2 2 0 2 Interface P C board Interface P C board of outdoor unit for which oil level judgment results are 0 0 0 0 0 0 10 10 10 10 10...

Страница 98: ...ts OFF None ON Trouble judgement SW101 DIP SW 4 bit bit1 Setup of header outdoor unit OFF Follower outdoor unit ON Header outdoor unit ON With termination resistance SW104 DIP SW 4 bit bit1 bit2 bit2 bit3 Line address setup Used by combining with SW102 4 bit bit4 SW102 DIP SW 4 bit bit1 Line address setup Used by combining with SW101 3 bit SW105 DIP SW 4 bit bit1 Corresponds to 2 core wire OFF Nor...

Страница 99: ...nce kΩ 10 C or below Resistance kΩ 10 C or above Resistance kΩ 50 C or below Resistance kΩ 50 C or above 10 15 25 5 20 0 10 20 30 40 50 60 70 10 0 Temperature C 80 90 100 0 3 0 2 100 150 50 33 8kΩ 10 0kΩ 200 Temperature C 200 0 10 20 5 15 0 0 1 0 2 0 3 0 4 70 80 90 100 110 120 130 50 60 100 150 50 0 Outdoor TS1 TS3 TE1 TE2 TE3 TL1 TL2 TL3 and TO sensors Temperature C 20 15 10 5 0 5 10 15 20 25 30 ...

Страница 100: ...PS Input output name Lead wire color Input output name Lead wire color 1 OUTPUT White 2 OUTPUT White 3 GND Black GND Black 4 5V Red 5V Red Low pressure side PS High pressure side PD 0 5 4 5V 0 3 92MPa 0 5 4 5V 0 2 0MPa 2 0 0 0 5 4 5 4 15 3 92 Pressure MPa 4 5 4 73 0 5 0 High pressure side output voltage V Pressure MPa Low pressure side output voltage V ...

Страница 101: ... 5 3 4 4 3 6 3 0 2 5 2 1 1 7 1 5 1 2 1 1 0 9 0 8 0 7 20 15 10 5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 102 9 76 6 57 7 44 0 38 8 26 1 20 4 16 0 12 6 10 0 8 0 6 4 5 2 4 2 3 5 2 8 2 3 1 9 1 6 1 4 1 2 Temperature C 10 15 5 20 0 30 20 10 0 10 20 30 40 50 60 70 80 90 100 100 150 50 200 0 10 15 5 20 0 30 20 10 0 10 20 30 40 50 60 70 80 90 100 100 150 50 200 0 Resistance kΩ 10 C or beiow Resist...

Страница 102: ...3 2 00 2 25 2 50 2 75 3 00 3 25 3 51 3 74 4 01 4 15 20 4 22 9 25 5 28 0 30 5 33 1 35 8 38 2 40 9 42 3 VOLT Pd MPa Pd kg cm2 Outdoor Unit PS sensor characteristics 0 to 2 0 MPa 0 5 to 5V output for 0 to 2 0 MPa Voltage readings across pins 2 and 3 of CN500 on indoor unit main P C board with negative side probe of multimeter placed on pin 3 0 59 0 69 0 89 1 10 1 30 1 49 1 69 1 90 2 10 2 29 0 05 0 10...

Страница 103: ... 5 5 kg 4 6 kg 4 6 kg 4 3 kg 6 3 kg 6 3 kg 7 8 kg 7 8 kg 8 0 kg 7 5 kg 9 5 kg 10 5 kg 11 0 kg 10 1 kg 10 1 kg 10 3 kg 11 8 kg 11 8 kg 13 3 kg 13 3 kg Compensation by total outdoor unit HP kg Combination HP Total outdoor unit HP 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24...

Страница 104: ...096 0 6 0 8 0 9 1 1 1 1 25 1 5 1 7 1 85 2 2 25 2 5 3 3 2 4 5 6 8 10 0 2 0 4 0 6 1 0 According to indoor unit horsepower Corrective amount of refrigerant according to indoor unit horsepower C HP kg kg Number of connected indoor units Number Corrective amount of refrigerant Indoor Unit Capacity Corrective amount of refrigerant on each indoor unit horsepower According to indoor unit horsepower for Ho...

Страница 105: ... below calculate the corrective amount of refrigerant according to system diversity D Corrective amount of refrigerant varies according to the system diversity D Lastly add the corrective amount of refrigerant according to system diversity D the corrective amount of refrigerant according to indoor unit horsepower C and the additional amount of refrigerant by the pipe diameter on liquid side and th...

Страница 106: ...nit Power ON If Power ON time is over 48 hours we cannot use WTA App test operation Other WTA App function can be used You should decide whether to make use of this test operation function at its own responsibility and also be sure to confirm notices in the Operating Manual before performing the test operation If you want to prohibit the test operation from WTA App perform the following steps High...

Страница 107: ...C App 6 9 1 1 Push more than 2 sec Flashing d 1 Lighting Push SW04 more than 2sec 7 seg display will change from flashing to lighting SW02 SW03 SW01 SW04 SW05 SW06 Do it again if the 7 segment display is different from the above The functions other than the test operation of this Application can work normally even if the test operation function are prohibited 16 4 Confirmation for NFC tag Communic...

Страница 108: ...unit 1st branching section Branching header Indoor unit Y joint L7 Y joint Y shape branching joint for liquid pipe A Header unit B Follower C Follower D Follower E Follower unit L3 Header unit A Header unit A Follower unit B Follower unit B Follower unit C Follower unit C Main pipe Main pipe To the indoor unit To the indoor unit Incorrect Figure 1 Figure 2 t c e r r o c n I t c e r r o C System re...

Страница 109: ... outdoor unit system Capacity of combined indoor units 105 or less Liquid side has been increased one size from the standard size The height difference between indoor units H2 is 3 m or less 8 Extension up to 110 m is possible with conditions below System combining two or more outdoor units Capacity of combined indoor units 105 or less Minimum capacity of connecting indoor unit is more than 3HP Th...

Страница 110: ... C Follower unit B Follower unit D Follower unit E Outdoor unit connecting pipes Main connecting piping between outdoor units Outdoor unit connection piping kit For linking of outdoor units Branching pipe Branching header Indoor unit connecting pipe Indoor unit First branch Y shape branching joint Main piping Y shaped branching joint ...

Страница 111: ...value of outdoor units 3 Outdoor unit connection piping kit of header unit First branching section Main piping Size of main piping Total capacity codes of all outdoor units Gas side Liquid side Equivalent to capacity HP Standard Pipe Refrigerant saving pipe size Allowable Length 8 19 1 12 7 9 5 30 m 10 22 2 12 7 9 5 30 m 12 28 6 12 7 14 to 18 28 6 15 9 12 7 50 m 20 28 6 15 9 22 28 6 19 1 15 9 80 m...

Страница 112: ...the total capacity code value of indoor units at the downstream side If the total capacity code value of indoor units exceeds that of the outdoor units apply the capacity code of the outdoor units 5 Branching section Indoor unit Indoor unit connecting pipe Connecting pipe size of indoor unit Capacity rank Gas side Liquid side 003 to 012 type 15 m or less real length 9 5 6 4 Real length exceeds 15 ...

Страница 113: ...w 26 equivalent to HP and you use a branching header for the rst branching section use a RBM HY2043E or RBM HY2083E regardless of the total capacity codes of outdoor units at downstream side In addition you cannot use a branching header for the rst branching section when the total capacity codes of all outdoor units are over 26 equivalent to HP 8 Branching section Outdoor unit connection piping ki...

Страница 114: ... heat exchanger TE1 TG1 TG2 TE2 TL1 Inverter heat sink Subcool Heat Exchanger High pressure switch High pressure sensor 4 way valve Low pressure sensor TS1 TL2 TO PMV1 TO TS3 TD1 TL3 TK1 PMV2 PMV4 Oil separator Compressor Inverter SV3F SV 4 way valve PMV1 PMV2 PMV3 PMV4 OFF Control Control Control Control SV3D SV3F SV4 n Outdoor fan Control Control Control Control SV41 SV SV3D SV Outdoor Unit MMY ...

Страница 115: ... Inverter SV3F SV SV41 SV SV3D SV Header Unit MMY MUP2401HT8 C Defrost Unit M Fan M Fan Left side Left side Main heat exchanger Main heat exchanger Right side Right side Main heat exchanger Main heat exchanger Left side Main heat exchanger Right side Main heat exchanger Right side Right side Sub heat exchanger Sub heat exchanger Right side Sub heat exchanger Left side Left side Sub heat exchanger ...

Страница 116: ...mporary Header Unit during Emergency Operation Accumulator High pressure switch TD1 TK1 Oil separator Compressor Inverter SV3F SV SV41 SV SV3D SV Header Unit MMY MUP2401HT8 C Trouble M Fan M Fan Left side Left side Main heat exchanger Main heat exchanger Right side Right side Main heat exchanger Main heat exchanger Left side Main heat exchanger Right side Main heat exchanger Right side Right side ...

Страница 117: ...ency Operation Accumulator High pressure switch TD1 TK1 Oil separator Compressor Inverter SV3F SV SV41 SV SV3D SV Gas side service valve Full open Header Unit MMY MUP2401HT8 C Trouble M Fan M Fan Left side Left side Main heat exchanger Main heat exchanger Right side Right side Main heat exchanger Main heat exchanger Left side Main heat exchanger Right side Main heat exchanger Right side Right side...

Страница 118: ...TC2 TCJ TC1 Cooling TK1 TK2 PMV3 PMV4 Oil separator Compressor 1 Inverter Compressor 2 Inverter SV SV42 SV3F SV SV SV TC2 TCJ TC1 Cooling TC2 TCJ TC1 Cooling TC2 TCJ TC1 Cooling Follower Unit MMY MUP1401HT8 C M FAN On Main heat exchanger Main heat exchanger Main heat exchanger Sub heat exchanger Sub heat exchanger Sub heat exchanger TE1 TG1 TG2 TE2 TL1 Inverter heat sink Subcool Heat Exchanger Hig...

Страница 119: ... system prevent dilution with oil 5 Releases capacity Refrigerant mass bypass function in minimum cooling operation PMV2 PMV3 PMV2 Connector CN301㧦WHI PMV3 Connector CN302㧦BLU 1 Controls superheat and subcool of the sub heat exchanger 2 Maintains discharge pressure in low ambient cooling operation PMV4 Connector CN303㧦RED 1 Controls superheat and subcool of the sub cooling heat exchanger 2 Liquid ...

Страница 120: ...ressor reliability when Hot Gas Bypass system prevent dilution with oil 5 Releases capacity Refrigerant mass bypass function in minimum cooling operation PMV2 PMV3 PMV2 Connector CN301㧦WHI PMV3 Connector CN302㧦BLU 1 Controls superheat and subcool of the sub heat exchanger 2 Maintains discharge pressure in low ambient cooling operation PMV4 Connector CN303㧦RED 1 Controls superheat and subcool of th...

Страница 121: ...1 Protection of compressor discharge temperature 2 Used for discharge temperature release TG1 TG2 TG3 TG1 Connector CN381㧦WHI TG2 Connector CN381㧦WHI TG3 Connector CN384㧦BLU 1 Controls superheat of PMV in heating operation TE1 Connector CN381㧦WHI 1 Controls the main heat exchanger defrost in heating operation 2 Controls outdoor fan in heating operation TE2 TE3 TE2 Connector CN381㧦WHI TE3 Connector...

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