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Troubleshooting

Installer and user reference guide

FXUA50~100AVEB

VRV system air conditioner

4P673843-1 – 2022.01

Code

Description

Room temperature thermistor in remote controller abnormality

Содержание FXUA50AVEB

Страница 1: ...Installer and user reference guide VRV system air conditioner FXUA50AVEB FXUA71AVEB FXUA100AVEB...

Страница 2: ...29 9 Energy saving and optimum operation 30 10 Maintenance and service 31 10 1 Precautions for maintenance and service 31 10 2 Cleaning the unit exterior air filter and suction grille 32 10 2 1 To cle...

Страница 3: ...t piping 61 17 2 1 About connecting the refrigerant piping 61 17 2 2 Precautions when connecting the refrigerant piping 62 17 2 3 Guidelines when connecting the refrigerant piping 62 17 2 4 Pipe bendi...

Страница 4: ...f General safety precautions Safety instructions that you must read before installing Format Paper in the box of the indoor unit Indoor unit installation and operation manual Installation and operatio...

Страница 5: ...aning of warnings and symbols DANGER Indicates a situation that results in death or serious injury DANGER RISK OF ELECTROCUTION Indicates a situation that could result in electrocution DANGER RISK OF...

Страница 6: ...act your dealer DANGER RISK OF BURNING SCALDING Do NOT touch the refrigerant piping water piping or internal parts during and immediately after operation It could be too hot or too cold Give it time t...

Страница 7: ...rvice In Europe EN378 provides the necessary guidance for this logbook 2 2 2 Installation site Provide sufficient space around the unit for servicing and air circulation Make sure the installation sit...

Страница 8: ...on and explosion of the compressor because of air going into the operating compressor Use a separate recovery system so that the unit s compressor does NOT have to operate WARNING ALWAYS recover the r...

Страница 9: ...ediately If the valve is NOT closed immediately remaining pressure might charge additional refrigerant Possible consequence Incorrect refrigerant amount 2 2 4 Electrical DANGER RISK OF ELECTROCUTION T...

Страница 10: ...earth leakage protector CAUTION When connecting the power supply connect the earth cable first before making the current carrying connections When disconnecting the power supply disconnect the curren...

Страница 11: ...x is connected securely Make sure all covers are closed before starting up the unit NOTICE ONLY applicable if the power supply is three phase and the compressor has an ON OFF starting method If there...

Страница 12: ...o the general public install it in a secured area protected from easy access This unit both indoor and outdoor is suitable for installation in a commercial and light industrial environment WARNING Kee...

Страница 13: ...advancing capacitor because this unit is equipped with an inverter A phase advancing capacitor will reduce performance and may cause accidents WARNING Use an all pole disconnection type breaker with a...

Страница 14: ...urces example open flames an operating gas appliance or an operating electric heater in case the floor area is less than the minimum floor area A m no auxiliary devices which may be a potential igniti...

Страница 15: ...t are included with the unit Using different flare nuts may cause refrigerant gas leakage 3 1 1 Installation space requirements CAUTION The total refrigerant charge in the system cannot exceed the req...

Страница 16: ...For the user Installer and user reference guide 16 FXUA50 100AVEB VRV system air conditioner 4P673843 1 2022 01 For the user...

Страница 17: ...uced physical sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the haz...

Страница 18: ...tery contains a heavy metal above a certain concentration Possible chemical symbols are Pb lead 0 004 Waste batteries MUST be treated at a specialised treatment facility for reuse By ensuring waste ba...

Страница 19: ...thy to expose your body to the air flow for a long time CAUTION To avoid oxygen deficiency ventilate the room sufficiently if equipment with burner is used together with the system CAUTION Do NOT oper...

Страница 20: ...or outlet When the fan is rotating at high speed it will cause injury WARNING NEVER replace a fuse with a fuse of a wrong ampere ratings or other wires when a fuse blows out Use of wire or copper wir...

Страница 21: ...he unit before cleaning the unit exterior air filter and suction grille WARNING Do NOT let the indoor unit get wet Possible consequence Electrical shock or fire About the refrigerant see 10 5 About th...

Страница 22: ...devices ventilate the room and contact the dealer where you purchased the unit Do NOT use the unit until a service person confirms that the part from which the refrigerant leaked has been repaired WA...

Страница 23: ...ted before resuming operation NOTICE Do NOT use the system for other purposes In order to avoid any quality deterioration do NOT use the unit for cooling precision instruments food plants animals or w...

Страница 24: ...il units Item Symbol Value Unit Cooling capacity sensible Prated c A kW Cooling capacity latent Prated c B kW Heating capacity Prated h C kW Total electric power input Pelec D kW Sound power level coo...

Страница 25: ...hemical dust cloth etc The panel may get discoloured or the coating peeled off If it is heavily dirty soak a cloth in water diluted neutral detergent squeeze it well and wipe the panel clean Wipe it w...

Страница 26: ...used together with the system CAUTION Do NOT operate the system when using a room fumigation type insecticide Chemicals could collect in the unit and endanger the health of people who are hypersensiti...

Страница 27: ...ack A function that keeps the room temperature in a specific range when the system is turned off by the user the schedule function or the OFF timer 8 2 1 Basic operation modes The indoor unit can oper...

Страница 28: ...tely 6 to 8 minutes Hot start During hot start the indoor unit fan will stop operation and the following icon will appear on the home screen 8 2 3 Adjusting the airflow direction The following airflow...

Страница 29: ...ard When starting operation When the room temperature is higher than the controller s setpoint for heating operation including auto operation At defrost operation When the indoor units run continuousl...

Страница 30: ...ure the system operates properly Prevent direct sunlight from entering a room during cooling operation by using curtains or blinds Make sure the area is well ventilated Do NOT block any ventilation op...

Страница 31: ...this work However as end user you may clean the air filter suction grille and the unit exterior WARNING NEVER replace a fuse with a fuse of a wrong ampere ratings or other wires when a fuse blows out...

Страница 32: ...exterior air filter and suction grille CAUTION Turn off the unit before cleaning the unit exterior air filter and suction grille NOTICE Do NOT use gasoline benzene thinner polishing powder or liquid i...

Страница 33: ...filter up to remove it from the tabs on the top part of the suction grille 2 a c a a b d a 1 1 1 2 2 a Air filter b Bottom end of the air filter c Tab on the bottom part of the suction grille d Tab on...

Страница 34: ...d close it steps 2 and 1 in reverse order INFORMATION When closing the suction grille make sure the straps of the suction grille are not pinched anywhere 10 3 Maintenance before a long stop period E g...

Страница 35: ...heater WARNING Do NOT pierce or burn refrigerant cycle parts Do NOT use cleaning materials or means to accelerate the defrosting process other than those recommended by the manufacturer Be aware that...

Страница 36: ...e detection check will occur False detection check 1 The unit starts fan operation on the lowest setting 2 The user interface displays error A0 13 emits an alarm sound and the status indicator blinks...

Страница 37: ...operly Turn OFF all main power supply switches to the unit If water leaks from the unit Stop operation The operation switch does NOT function properly Turn OFF the power supply If the user interface d...

Страница 38: ...malfunctions The following symptoms are NOT system malfunctions 11 1 1 Symptom The system does not operate The air conditioner does not start immediately after the ON OFF button on the user interface...

Страница 39: ...stop Operation automatically restarts when the noise ceases A power reset may help to remove this error 11 1 7 Symptom Noise of air conditioners Indoor unit A zeen sound is heard immediately after th...

Страница 40: ...taller and user reference guide 40 FXUA50 100AVEB VRV system air conditioner 4P673843 1 2022 01 12 Relocation Contact your dealer for removing and reinstalling the total unit Moving units requires tec...

Страница 41: ...r 4P673843 1 2022 01 13 Disposal NOTICE Do NOT try to dismantle the system yourself dismantling of the system treatment of the refrigerant oil and other parts MUST comply with applicable legislation U...

Страница 42: ...For the installer Installer and user reference guide 42 FXUA50 100AVEB VRV system air conditioner 4P673843 1 2022 01 For the installer...

Страница 43: ...ossible to its final installation position to prevent damage during transport Prepare the path along which you want to bring the unit inside in advance 14 2 Indoor unit 14 2 1 To unpack and handle the...

Страница 44: ...Paper pattern for installation top part of packing box b General safety precautions c Indoor unit installation and operation manual d Drain hose e Metal clamp f Washer for hanger bracket g Tie wraps h...

Страница 45: ...it 45 15 2 About the indoor unit 45 15 3 System layout 45 15 4 Combining units and options 46 15 4 1 Possible options for the indoor unit 46 15 1 Identification 15 1 1 Identification label Indoor unit...

Страница 46: ...case of refrigerant leakage detection E g BRC1H52 user interfaces can generate an alarm of 65 dB sound pressure measured at a distance of 1 m from the alarm Sound data is available in the technical da...

Страница 47: ...al of the optional output PCB An additional Installation box for the optional output PCB is required see the option list of the indoor unit For installation of the installation box refer to the manual...

Страница 48: ...d WARNING The appliance shall be stored in a room without continuously operating ignition sources example open flames an operating gas appliance or an operating electric heater 16 1 1 Installation sit...

Страница 49: ...nergy The equipment complies to specifications that are designed to provide reasonable protection against such interference However there is no guarantee that interference will NOT occur in a particul...

Страница 50: ...ection rear straight refrigerant piping right bent refrigerant piping For upward refrigerant piping any discharge pattern can be selected The number in the symbol corresponds with the number of air ou...

Страница 51: ...ccidental touching Maximum Depends on the capacity class See 21 1 Field setting 476 INFORMATION Some options may require additional service space Refer to the installation manual of the used option be...

Страница 52: ...nger bracket accessory from falling during installation Remove the clamp washer after the unit is mounted b a a Clamp washer accessory b Washer for hanger bracket accessory a 950 d 835 d 835 a 950 mm...

Страница 53: ...r covers 45 3 a a Corner cover To mount the indoor unit 1 For 2 way or 3 way air discharge refer to To block the air outlet for 2 way or 3 way air discharge 454 2 Handle the unit only by the hanger br...

Страница 54: ...cking pad accessory for 3 way air discharge INFORMATION For 2 way air discharge the optional blocking pad kit is required Blocking pads accessory can be used for any air discharge pattern See 16 1 Dis...

Страница 55: ...into the space between the upper decoration panel and the insulation 2 Insert the bent parts 2 locations at the ends of the blocking pad a little into the space between the lower decoration panel and...

Страница 56: ...st 1 100 to prevent air from being trapped in the piping Use hanging bars as shown 1 1 5 m a a Hanging bar Allowed Not allowed Condensation Take measures against condensation Insulate the complete dra...

Страница 57: ...ory b Drain hose accessory c Metal clamp accessory d Elbow accessory e Longer side of elbow rear piping f Shorter side of elbow upward piping c a b e d c g e d c g 10 15 mm A A A A 5 3 2 d e f 6 90 90...

Страница 58: ...d of the metal clamp is wrapped twice 6 Connect the drain piping to the drain hose To check for water leaks The procedure differs depending on whether installation of the system is already completed W...

Страница 59: ...al wiring Remove the service cover See 18 2 To connect the electrical wiring to the indoor unit 469 Disconnect the power supply Disconnect the user interface Reattach the service cover See 18 2 To con...

Страница 60: ...nts INFORMATION Also read the precautions and requirements in the 2 General safety precautions 45 CAUTION Piping MUST be installed according to instructions given in 17 Piping installation 460 Only me...

Страница 61: ...r p Insulation inner diameter i Insulation thickness t 6 4 mm 1 4 8 10 mm 10 mm 9 5 mm 3 8 12 15 mm 13 mm 12 7 mm 1 2 14 16 mm 13 mm 15 9 mm 5 8 17 20 mm 13 mm i i t p p If the temperature is higher t...

Страница 62: ...gauge set that are exclusively used for R32 installations to withstand the pressure and to prevent foreign materials e g mineral oils and moisture from mixing into the system Install the piping so tha...

Страница 63: ...45 90 2 A 9 5 33 39 12 8 13 2 12 7 50 60 16 2 16 6 15 9 62 75 19 3 19 7 17 2 4 Pipe bending guidelines Use a pipe bender for bending All pipe bends should be as gentle as possible bending radius shou...

Страница 64: ...ining refrigerant unless the components are constructed of materials that are inherently resistant to corrosion or are suitably protected against corrosion WARNING MILDLY FLAMMABLE MATERIAL The refrig...

Страница 65: ...it 3 Tighten the tie wrap on the insulation pieces 4 Wrap the sealing pad from the base of the unit to the top of the flare nut For upward and right piping use the attached L shaped piping and insulat...

Страница 66: ...ower supply system complies with the electrical specifications of the units 2 Connecting the electrical wiring to the outdoor unit 3 Connecting the electrical wiring to the indoor unit 4 Connecting th...

Страница 67: ...use this unit is equipped with an inverter A phase advancing capacitor will reduce performance and may cause accidents WARNING Use an all pole disconnection type breaker with at least 3 mm between the...

Страница 68: ...etainer and the terminal must be longer than the other wires 18 1 3 Specifications of standard wiring components Component Class 50 71 100 Power supply cable MCA a 0 5 A 0 6 A 1 1 A Voltage 220 240 V...

Страница 69: ...d ALWAYS be at least 50 mm NOTICE Be sure to keep the power line and transmission line apart from each other Transmission wiring and power supply wiring may cross but may NOT run parallel 1 Remove the...

Страница 70: ...on woven fabric accessory c Small sealing pad accessory d User interface cable and transmission cable e Power supply cable f Tie wrap accessory g Terminal block for user interface and transmission wir...

Страница 71: ...y a safety system compatible remote controller can be used as the user interface See technical data sheet for remote controller compatibility e g BRC1H52 82 The user interface has to be put in the sam...

Страница 72: ...lled on the unit A B a b c A For rear piping outlet B For right piping outlet a Piping opening b Make sure this part does not fall off after cutting c Corner cover 1 Attach the corner cover to the ind...

Страница 73: ...or unit installation Installer and user reference guide 73 FXUA50 100AVEB VRV system air conditioner 4P673843 1 2022 01 45 1 3 2 2 Close the suction grille by sliding the knobs away from the middle of...

Страница 74: ...ibes what you have to do and know to commission the system after it is installed Typical workflow Commissioning typically consists of the following stages 1 Checking the Checklist before commissioning...

Страница 75: ...e consequence Condensate water might drip The refrigerant pipes gas and liquid are installed correctly and thermally insulated There are NO refrigerant leaks There are NO missing phases or reversed ph...

Страница 76: ...see the installation manual of the optional accessory Following setting are only applicable when using the BRC1H52 user interface When using any other user interface see the installation manual or ser...

Страница 77: ...en 1 M SW 2500 h light 10 20 0 01 1250 h heavy 02 Notification ON 3 01 Notification OFF 02 Setting Thermostat sensor selection This setting must correspond with how if the user interface thermostat se...

Страница 78: ...eating 24 C 1 C 02 cooling 24 C heating 23 C 2 C 03 cooling 24 C heating 22 C 3 C 04 cooling 24 C heating 21 C 4 C 05 cooling 24 C heating 20 C 5 C 06 cooling 24 C heating 19 C 6 C 07 cooling 24 C hea...

Страница 79: ...ssion wiring F2 T1 OFF FORCED T2 Input A b a a Forced OFF b Input A Wiring requirements Wiring specification Sheathed vinyl cord or 2 core cable Wiring size 0 75 1 25 mm2 Wiring length Maximum 100 m E...

Страница 80: ...rly please make sure the following is clear for the user Make sure that the user has the printed documentation and ask him her to keep it for future reference Inform the user that he can find the comp...

Страница 81: ...e Description The R32 sensor has detected a refrigerant leak Safety system error leak detection R32 sensor malfunction R32 sensor end of lifetime 6 months before the R32 sensor end of lifetime Malfunc...

Страница 82: ...23 Troubleshooting Installer and user reference guide 82 FXUA50 100AVEB VRV system air conditioner 4P673843 1 2022 01 Code Description Room temperature thermistor in remote controller abnormality...

Страница 83: ...r 4P673843 1 2022 01 24 Disposal NOTICE Do NOT try to dismantle the system yourself dismantling of the system treatment of the refrigerant oil and other parts MUST comply with applicable legislation U...

Страница 84: ...art numbering is by Arabic numbers in ascending order for each part and is represented in the overview below by in the part code Symbol Meaning Symbol Meaning Circuit breaker Protective earth Connecti...

Страница 85: ...e HAP Light emitting diode service monitor green HIGH VOLTAGE High voltage IES Intelligent eye sensor IPM Intelligent power module K R KCR KFR KHuR K M Magnetic relay L Live L Coil L R Reactor M Stepp...

Страница 86: ...ensor low S PH HPS Pressure switch high S PL Pressure switch low S T Thermostat S RH Humidity sensor S W SW Operation switch SA F1S Surge arrester SR WLU Signal receiver SS Selector switch SHEET METAL...

Страница 87: ...red service to the product Installation manual Instruction manual specified for a certain product or application explaining how to install configure and maintain it Operation manual Instruction manual...

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