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10

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Maintenance and service

Installer and user reference guide

37

FXHA32~100AVEB
VRV system air conditioner
4P673749-1 – 2022.01

10.5.1 About the refrigerant leakage sensor

WARNING

The R32 refrigerant leakage sensor must be replaced after every detection or at the
end of its lifetime. ONLY authorised persons may replace the sensor.

NOTICE

Functionality of the safety measures are periodically automatically checked. In case
of malfunction, an error code will be displayed on the user interface.

NOTICE

The  R32  refrigerant  leakage  sensor  is  a  semiconductor  detector  which  may
incorrectly  detect  substances  other  than  R32  refrigerant.  Avoid  using  chemical
substances  (e.g.  organic  solvents,  hair  spray,  paint)  in  high  concentrations,  in  the
close  proximity  of  the  indoor  unit  because  this  may  cause  misdetection  of  the  R32
refrigerant leakage sensor.

INFORMATION

The  sensor  has  a  lifetime  of  10  years.  The  user  interface  displays  error  "

CH-05

"

6 months before the end of the sensor lifetime and error "

CH-02

" after the end of

the  sensor  lifetime.  For  more  information,  refer  to  the  reference  guide  of  the  user
interface and contact your dealer.

In case of detection when the unit is in standby

When the detection occurs when the unit is in standby, a "false 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.

3

The sensor checks if a refrigerant leakage or misdetection occurred.

No refrigerant leakage detected. 

Result: 

 The system resumes normal operation

after approximately 2 minutes.

Refrigerant leakage detected. 

Result:

1

The user interface displays error "

A0-11

", emits an alarm sound and the status

indicator blinks.

2

Contact  your  dealer  immediately.  For  more  information,  see  the  installation
manual of the outdoor unit.

In case of detection when the unit is turned on

1

The user interface displays error "

A0-11

", emits an alarm sound and the status

indicator blinks.

2

Contact  your  dealer  immediately.  For  more  information,  see  the  installation
manual of the outdoor unit.

INFORMATION

To stop alarm of the user interface see the reference guide of the user interface.

Summary of Contents for FXHA32AVEB

Page 1: ...Installer and user reference guide VRV system air conditioner FXHA32AVEB FXHA50AVEB FXHA63AVEB FXHA100AVEB...

Page 2: ...30 9 Energy saving and optimum operation 31 10 Maintenance and service 32 10 1 Precautions for maintenance and service 32 10 2 Cleaning the unit exterior air filter and suction grille 33 10 2 1 To cle...

Page 3: ...erant piping 59 17 2 1 About connecting the refrigerant piping 59 17 2 2 Precautions when connecting the refrigerant piping 60 17 2 3 Guidelines when connecting the refrigerant piping 60 17 2 4 Pipe b...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 12: ...uously operating ignition sources example open flames an operating gas appliance or an operating electric heater CAUTION Appliance NOT accessible to the general public install it in a secured area pro...

Page 13: ...fuses or circuit breakers Secure the electrical wiring with cable ties so that the cables do NOT come in contact with sharp edges or piping particularly on the high pressure side Do NOT use taped wire...

Page 14: ...l damage and in a well ventilated room without continuously operating ignition sources example open flames an operating gas appliance or an operating electric heater and have a room size as specified...

Page 15: ...etection of refrigerant leaks NOTICE Do NOT re use joints and copper gaskets which have been used already Joints made in installation between parts of refrigerant system shall be accessible for mainte...

Page 16: ...For the user Installer and user reference guide 16 FXHA32 100AVEB VRV system air conditioner 4P673749 1 2022 01 For the user...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 23: ...ming 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 works of art NOT...

Page 24: ...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 cooling LWA E dB A Sound power...

Page 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...

Page 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...

Page 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...

Page 28: ...ring 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 directions can be set Up and do...

Page 29: ...uch the air outlet or the horizontal blades while the swing flap is in operation Fingers may become caught or the unit may break down NOTICE Avoid operating in the horizontal direction It may cause de...

Page 30: ...uide 30 FXHA32 100AVEB VRV system air conditioner 4P673749 1 2022 01 8 3 To operate the system INFORMATION For setting of the operation mode airflow direction or other settings see the reference guide...

Page 31: ...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...

Page 32: ...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...

Page 33: ...suring points b Printed circuit board c Control box 10 2 Cleaning the unit exterior air filter and suction grille CAUTION Turn off the unit before cleaning the unit exterior air filter and suction gri...

Page 34: ...irection of the arrow and carefully open the suction grille a a Knob 2 Remove the air filter Push up the filter knobs at 2 places and take out the air filter a a Filter knob 3 Clean the air filter Use...

Page 35: ...n grille is very dirty use a typical kitchen cleaner leave it on for 10 min then wash it with water 5 Reattach the air filter Refer to 10 2 2 To clean the air filter 433 6 Reattach the suction grille...

Page 36: ...f the refrigerant total refrigerant charge in kg 1000 Please contact your installer for more information WARNING MILDLY FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable WARNING...

Page 37: ...fter the end of the sensor lifetime For more information refer to the reference guide of the user interface and contact your dealer In case of detection when the unit is in standby When the detection...

Page 38: ...vice Installer and user reference guide 38 FXHA32 100AVEB VRV system air conditioner 4P673749 1 2022 01 INFORMATION The minimum airflow during normal operation or during the refrigerant leakage detect...

Page 39: ...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...

Page 40: ...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...

Page 41: ...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...

Page 42: ...taller and user reference guide 42 FXHA32 100AVEB VRV system air conditioner 4P673749 1 2022 01 12 Relocation Contact your dealer for removing and reinstalling the total unit Moving units requires tec...

Page 43: ...r 4P673749 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...

Page 44: ...For the installer Installer and user reference guide 44 FXHA32 100AVEB VRV system air conditioner 4P673749 1 2022 01 For the installer...

Page 45: ...be checked for damage Any damage MUST be reported immediately to the claims agent of the carrier Bring the packed unit as close as possible to its final installation position to prevent damage during...

Page 46: ...box 2 Open the suction grille and remove the accessories from the interior of the unit 4 1 1 1 1 1 2 2 1 c a b 1 1 j l k m n o 1 8 7 1 f g d e h i a General safety precautions b Indoor unit installati...

Page 47: ...he indoor unit 47 15 3 System layout 47 15 4 Combining units and options 48 15 4 1 Possible options for the indoor unit 48 15 1 Identification 15 1 1 Identification label Indoor unit Location 15 2 Abo...

Page 48: ...every room where an indoor unit is installed CAUTION Each indoor unit has to be connected to a separate user interface Only a safety system compatible remote controller can be used as the user interfa...

Page 49: ...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...

Page 50: ...protection against such interference However there is no guarantee that interference will NOT occur in a particular installation It is therefore recommended to install the equipment and electric wires...

Page 51: ...Mounting the indoor unit 16 2 1 Guidelines when installing the indoor unit INFORMATION Optional equipment When installing optional equipment also read the installation manual of the optional equipment...

Page 52: ...60 FXHA50 63 1270 1230 533 479 425 530 553 532 415 FXHA100 1590 1550 633 639 585 690 713 692 575 A Unit dimension B Suspension bolt pitch a Rear left drain piping outlet hole b Rear wiring outlet loca...

Page 53: ...for class 50 100 open the suction grille wide and hold the rear knob Pull the suction grille to the front to remove it b a a Fixing knob b Suction grille a a Rear knob Remove the decoration side cover...

Page 54: ...cause an electric shock or a fire 3 Fix the hanger bracket to the suspension bolts 16 2 1 Guidelines when installing the indoor unit 451 4 Lift up the indoor unit and slide it to the back Fix the han...

Page 55: ...a a Hanging bar Allowed Not allowed Condensation Take measures against condensation Insulate the complete drain piping in the building Combining drain pipes You can combine drain pipes Make sure to us...

Page 56: ...Rear left drain piping c Putty or insulation field supply d Left drain piping e Left knockout part on decoration side panel Rear right drain piping 1 Remove the rear piping pipe port cover and cut ou...

Page 57: ...se as far as possible over the drain pipe connection 2 Tighten the metal clamp at the base of the drain socket Wrap the end of the metal clamp with vinyl tape or bend the end inwards to avoid damaging...

Page 58: ...FORMATION 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 458 Only mechanic...

Page 59: ...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...

Page 60: ...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...

Page 61: ...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...

Page 62: ...indoor unit CAUTION Install the refrigerant piping or components in a position where they are unlikely to be exposed to any substance which may corrode components containing refrigerant unless the com...

Page 63: ...r b Cables except cable of expansion valve Upward piping INFORMATION L shaped connection piping kit optional accessory is required 1 Remove the top pipe port cover and cut out the holes for piping Whe...

Page 64: ...rt as possible Flare connections Connect refrigerant piping to the unit using flare connections Insulation Insulate the refrigerant piping on the indoor unit as follows A B a d c e f b b a d c e f b b...

Page 65: ...installation Installer and user reference guide 65 FXHA32 100AVEB VRV system air conditioner 4P673749 1 2022 01 NOTICE Make sure to insulate all refrigerant piping Any exposed piping might cause cond...

Page 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...

Page 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...

Page 68: ...en the wire retainer and the terminal must be longer than the other wires 18 1 3 Specifications of standard wiring components Component Class 32 50 63 100 Power supply cable MCA a 0 5 A 0 6 A 0 7 A 1...

Page 69: ...hole and install the resin bushing accessory Refer to To mount the indoor unit 453 The location depends on the power supply wiring route For transmission and user interface cable choosing the same rou...

Page 70: ...nection of user interface cable and transmission cable l Connection of power supply cable m Wiring fixture fixed with a screw accessory n Tie wrap accessory 7 Seal all gaps with sealing material acces...

Page 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...

Page 72: ...entering the indoor unit 19 1 To mount the suction grille and decoration side panel 1 Install securely in the reverse order Refer to To open the indoor unit 453 2 When installing the suction grille a...

Page 73: ...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...

Page 74: ...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...

Page 75: ...information 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 m...

Page 76: ...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...

Page 77: ...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 heating 18 C 7 C 08 cooling 24 C heating 17 C Setting Auto restart after power failure Depending on the needs o...

Page 78: ...ct specification Contact that can make and break the min load of DC15 V 1 mA This setting must correspond with the needs of the user If you want to change increments to Then 1 M SW Forced OFF 12 22 1...

Page 79: ...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...

Page 80: ...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...

Page 81: ...23 Troubleshooting Installer and user reference guide 81 FXHA32 100AVEB VRV system air conditioner 4P673749 1 2022 01 Code Description Room temperature thermistor in remote controller abnormality...

Page 82: ...r 4P673749 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...

Page 83: ...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...

Page 84: ...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...

Page 85: ...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...

Page 86: ...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...

Page 87: ......

Page 88: ...4P673749 1 2022 01 Copyright 2021 Daikin Verantwortung f r Energie und Umwelt...

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