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Service

Manual

VRV4 indoor units

ESIE15-11A

BRYQ-A

BYCQ-D

CAV/CYV

VKM

FXKQ-M

FXFQ-P

FXCQ-A

FXSQ-P

FXDQ-M

FXUQ-A

FXFQ-A

FXMQ-P

FXHQ-A

FXDQ-A

FXZQ-A

FXAQ-P

FXLQ

FXNQ

FXSQ-A

FXTQ-A

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Summary of Contents for VKM

Page 1: ...Service Manual VRV4 indoor units ESIE15 11A BRYQ A BYCQ D CAV CYV VKM FXKQ M FXFQ P FXCQ A FXSQ P FXDQ M FXUQ A FXFQ A FXMQ P FXHQ A FXDQ A FXZQ A FXAQ P FXLQ FXNQ FXSQ A FXTQ A...

Page 2: ...express or implied warranty is given for the completeness accuracy reliability or fitness for particular purpose of its content and the products and services presented therein Specifications are subj...

Page 3: ...d settings 21 1 Wireless remote controller BRC4C and BRC7C E 21 1 1 Access field settings 21 2 Wired remote controller BRC2 3E52 22 2 1 Access field settings 22 2 2 Field settings specific for wired r...

Page 4: ...ESIE15 11A Page 4 23 09 16 VRV4 indoor units...

Page 5: ...1 Introduction 1 Version log 23 09 16 Page 5 VRV4 indoor units Part 1 Introduction 1 Version log Version code Description Date ESIE15 11 Release 10 12 15 ESIE15 11A Add error codes A0 A1 A7 A9 01 A9...

Page 6: ...uit BS unit s or and Multi circuit BS unit s The Single circuit BS unit offers 1 change over circuit A Multi circuit BS unit offers 4 6 8 10 12 or 16 outlets To split the refrigerant circuit between o...

Page 7: ...pes of casings are used Medium casing REMQ5T7Y1B REYQ8 12T7Y1B Large casing REYQ14 20T7Y1B The unit REYQ8 20T7Y1B can be used as single unit or combined into a multi outdoor combination of maximum thr...

Page 8: ...cuit BS units The maximum number of circuits depend on the model BS4Q14A maximum 4 circuits BS6Q14A maximum 6 circuits BS8Q14A maximum 8 circuits BS10Q14A maximum 10 circuits BS12Q14A maximum 12 circu...

Page 9: ...oor unit in heating controls the indoor expansion valve on liquid sub cool SC by comparing Tc outdoor condensing temperature derived from reading of high pressure sensor and indoor coil temperature Wh...

Page 10: ...formation related to his her task The digital pdf version of this book allows direct page access through all active links When Adobe Acrobat Reader is used the Alt Back Arrow keys can be used to retur...

Page 11: ...malfunction contents are displayed when the inspection mode is entered The malfunction code enables you to tell what kind of malfunction caused operation to stop 1 1 2 Access to inspection menu In the...

Page 12: ...Q25 028 FXFQ63 071 Indoor unit system code Indoor unit type code Display Product classification System classification 1 VRV system VAV indoor unit 2 VRV system Outdoor air processing unit F VRV system...

Page 13: ...y malfunction history The history No can be changed with the but ton 41 Display of sensor and address data Display various types of data Select the data to be displayed with the button Sensor data 0 T...

Page 14: ...layed The malfunction code enables you to tell what kind of malfunction caused operation to stop Operation Status Display Abnormal shutdown The system stops operating The operation lamp green starts t...

Page 15: ...creen Service Menu screen Field Setting Menu Test operation ON OFF Register Service Contract Field setting list Group No setting Indoor unit AIRNET No set Outdoor unit AIRNET No set Error record Indoo...

Page 16: ...ction air thermistor 3 Th2 Heat exchanger liquid pipe thermistor 4 Th3 Heat exchanger gas pipe thermistor 5 Th4 Discharge air thermistor 6 Th5 7 Th6 4 Outdoor Status Display 1 Unit No Select the Unit...

Page 17: ...a buzzer remains ON The continuous buzzer indicates that the error code is confirmed Continuous beep No abnormality 3 Press the MODE selector button The left 0 upper digit indication of the error code...

Page 18: ...indoor AF Thermo off BRC1 Float switch open during thermo off Check for drain water returning from other indoor expansion valve correct closing thermo off AH 03 Warning BRC1 Communication error main P...

Page 19: ...loor temperature sensor Check wire harness connections 03 Thermo off Auto recovery Faulty signal from optional floor temperature sensor Check pins connector no short circuit 04 Thermo off Auto recover...

Page 20: ...ESIE15 11A Part 2 Troubleshooting 2 Error code based troubleshooting Page 20 23 09 16 VRV4 indoor units...

Page 21: ...the settings 6 Press the button to return to the normal mode Example When setting the filter sign time to Filter contamination heavy light in all group unit setting set the Mode No to 10 the first cod...

Page 22: ...ollow 1 Keep the button pressed 2 Push the 3 indicated keys simultaneously while keeping the button pressed To disable the Menu Enter and Cancel button in the Basic screen follow the same procedure 1...

Page 23: ...n per indoor unit the current settings are displayed SECOND CODE NO means that there is no function available In the case of configuring as a group all SECOND CODE NO which may be set are displayed as...

Page 24: ...details on the field settings of the indoor unit see the installation manual attached to the indoor unit The outdoor unit field settings can only be configured on the outdoor PCB Refer to the installa...

Page 25: ...02 off 8 automatic changeover winter time summertime 01 not active 02 automatic 03 manual 04 according to centralized control 11 Clock display in remote controller 01 Clock is shown in remocon 02 Clo...

Page 26: ...isplay of remocon 01 permanent display the screen always shows values 02 screen goes blank after 5 minutes touching any button will reactivate the screen 12 External input BC B1 window con tact of pcb...

Page 27: ...entered 2 Select the desired MODE NO with the button 3 During group control when setting by each indoor unit mode No 20 21 22 and 23 have been selected push the button and select the INDOOR UNIT NO t...

Page 28: ...filter sign is not to be displayed Display Do not display 12 22 1 ON OFF input from outside setting for when forced ON OFF is to be operated from outside Forced OFF ON OFF operation 2 Thermostat diff...

Page 29: ...oth buttons together to activate the function On the display the symbol will be visi ble Function can only be activated when unit is off 02 available 2 use of remocon sensor for limited and setback fu...

Page 30: ...e case of setting per indoor unit during group control When Mode No such as 20 21 22 23 25 are selected highlight the unit No and select Indoor unit No to be set by using Up Down button In the case of...

Page 31: ...7 9 After all setting changes are completed press Cancel button twice 10 Backlight goes out and Checking the connection Please stand by is displayed during initialization After the initialization the...

Page 32: ...0 High air outlet velocity for high ceiling applica tions 2 7 m 2 7 3 0 m 3 0 3 5 m 1 Selection of air flow direction setting for when a blocking pad kit has been installed 4 way flow 3 way flow 2 wa...

Page 33: ...for 30 seconds when pushing any button 03 always on 5 operation when backlight is off 01 no when pushing a button first backlight is activated function of button is not activated 02 yes when pushing...

Page 34: ...rol similar to BRC1D528 setting 1b 5 01 not visible to avoid conflict between timer inside centralized remocon and BRC1E 02 visible 5 hour indication 01 not visible in menu default 24h is activated 02...

Page 35: ...e case of setting per indoor unit during group control When Mode No such as 20 21 22 23 25 are selected highlight the unit No and select Indoor unit No to be set by using Up Down button In the case of...

Page 36: ...7 9 After all setting changes are completed press Cancel button twice 10 Backlight goes out and Checking the connection Please stand by is displayed during initialization After the initialization the...

Page 37: ...or 1 C 0 5 C 13 23 0 High air outlet velocity for high ceiling applica tions 2 7 m 2 7 3 0 m 3 0 3 5 m 1 Selection of air flow direction setting for when a blocking pad kit has been installed 4 way fl...

Page 38: ...en error code and main screen ex E3 04 7 Display of symbol for defrost hot start 01 on Whether or not the defrost hot start symbol is displayed on the remocon screen 02 off 8 automatic changeover wint...

Page 39: ...when backlight is off 01 no when pushing a button first backlight is activated function of button is not activated 02 yes when pushing a button backlight is activated and immediately function of butt...

Page 40: ...similar to BRC1D528 setting 1b 5 01 not visible to avoid conflict between timer inside centralized remocon and BRC1E 02 visible 5 hour indication 01 not visible in menu default 24h is activated 02 vi...

Page 41: ...me time then setting for group con nection 10 6 01 has priority and for individual connection 10 2 01 10 2 02 or 10 2 03 have priority 02 Use return air sensor only or remote sensor if installed Note...

Page 42: ...manual setting 23 6 For FXSQ FXMQ 1 Turn off the indoor unit 2 Set indoor unit to fan operation mode 3 Choose desired fanspeed L H HH 4 Change setting 21 7 00 to 21 7 03 and exit setting menu 5 Activa...

Page 43: ...nal remote sensor or when set ting 10 2 03 is used 4 Differential for automatic changeover Temperature difference between cool ing setpoint and heating setpoint in automatic mode Differential is cooli...

Page 44: ...irections simultane ously swing 02 03 opposite sides synchroni zation swing 3 Output to flap motor 01 enabled 02 disabled 03 4 Setting of airflow direction adjustment range 01 draft prevention high po...

Page 45: ...ter cleaning operation only 03 off while in a c operation and filter cleaning opera tion 04 On 8 auto cleaning program 01 choice between auto and schedule 02 only schedule auto not in menu 9 Dust amou...

Page 46: ...ection factor 1 00 02 speed up by 5 correction factor 1 05 03 speed up by 10 correction factor 1 10 6 Sensitivity presence sensor 01 high sensitive 02 low sensitive 03 standard 04 disable presence sen...

Page 47: ...lay after 48 000h 04 Display after 72 000h 4 Panel indicator green 01 On while in a c operation and filter cleaning operation 02 possible to turn on while in filter cleaning operation only 03 off whil...

Page 48: ...inutes fan starts immediately 02 1 minute 03 3 minutes default 04 5 minutes 7 Fan switching delay for hotstart in C depending on the condensing pressure 01 34 C 02 37 C 03 40 C 04 43 C default 8 Fan s...

Page 49: ...low set ting VKM works independent of indoor units 02 with direct duct fan off the fan of the VKM stops immediately when indoor unit fan stops remocon off defrost oil return and hot start 03 04 no dir...

Page 50: ...put terminal function selec tion between J1 JC 01 fresh up fresh up operation 02 overall alarm malfunction code 60 is displayed 03 04 05 06 airflow increase fan strengthen up low to high high to ultra...

Page 51: ...age 51 VRV4 indoor units 11 FXSQ A FXNQ A FXDQ A FXMQ P MB FXTQ A FXNQ A FXDQ A specific settings FXSQ A FXMQ P MB FXNQ A FXTQ A FXDQ A 13 23 5 External static pressure 01 Default Standard 10 Pa 02 Hi...

Page 52: ...n nominal airflow rate Hhspeed Possible available settings depend on outdoor unit size see corre sponding IM 02 High ESP 50 Tbc 03 30 60 Tbc 04 40 70 Tbc 05 50 80 Tbc 06 60 90 Tbc 07 70 100 Tbc 08 80...

Page 53: ...erform factory reset of settings through remocon Only for BRC2 3E52 BRC1E51 52 1 Power off unit and wait for display to go blank 2 Push 3 buttons simultaneously and power on unit while holding 3 butto...

Page 54: ...ESIE15 11A Part 3 Field settings 12 Factory settings Page 54 23 09 16 VRV4 indoor units...

Page 55: ...tbc FXKQ M FXFQ P FXCQ A FXSQ P FXDQ M FXUQ A FXFQ A FXMQ P FXHQ A FXDQ A FXZQ A FXAQ P FXLQ FXNQ VKM Biddle FXSQ A FXTQ A 22 0 02 01 01 01 02 01 01 01 01 01 01 01 01 01 01 01 tbc tbc 1 02 01 01 01 01...

Page 56: ...01 01 01 01 02 01 01 01 tbc tbc 8 na 02 na na na na 02 na 02 na na na na na na na tbc tbc 9 na 01 na na na na 01 na 01 na na na na na na 04 tbc tbc FXKQ M FXFQ P FXCQ A FXSQ P FXDQ M FXUQ A FXFQ A FXM...

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