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17 Maintenance and service

Installer and user reference guide

27

FCAHG71~140HVEB
Split system air conditioners
4P561449-1A – 2019.09

17.2.2

To clean the suction grille

NOTICE

Do  NOT  use  water  of  50°C  or  higher. 

Possible

consequence: 

Discoloration and deformation.

1

Open the suction grille.

Standard panel:

1

Design panel:

1

1

2

2

2

Remove the suction grille.

Standard panel:

45°

1

2

Design panel:

1

2

3

Remove the air filter.

1

2

3

4

Clean  the  suction  grille.  Wash  with  a  soft  bristle  brush,  and
water or neutral detergent. If the suction 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  and  suction  grille,  and  close  the  suction
grille.

17.2.3

To clean the air outlet and outside panels

WARNING

Do  NOT  let  the  indoor  unit  get  wet. 

Possible

consequence: 

Electric shock or fire.

NOTICE

▪ Do  NOT  use  gasoline,  benzene,  thinner  polishing

powder  or  liquid  insecticide. 

Possible  consequence:

Discoloration and deformation.

▪ Do  NOT  use  water  or  air  of  50°C  or  higher. 

Possible

consequence: 

Discoloration and deformation.

▪ Do  NOT  scrub  firmly  when  washing  the  blade  with

water. 

Possible  consequence: 

The  surface  sealing

peels off.

Clean with a soft cloth. If it is difficult to remove stains, use water or
neutral detergent.

17.3

Maintenance after a long stop
period

E.g., at the beginning of the season.

▪ Check  and  remove  everything  that  might  be  blocking  inlet  and

outlet vents of indoor units and outdoor units.

▪ Clean air filters and casings of indoor units (see 

"17.2.1 To clean

the air filter" 

[

4

 26] and 

"17.2.3 To clean the air outlet and outside

panels" 

[

4

 27]).

▪ Turn  on  the  power  at  least  6  hours  before  operating  the  unit  in

order  to  ensure  smoother  operation.  As  soon  as  the  power  is
turned on, the user interface display appears.

17.4

Maintenance before a long stop
period

E.g., at the end of the season.

▪ Let the indoor units run in fan only operation for about half a day in

order  to  dry  the  interior  of  the  units.  Refer  to 

"15.2.2  About

cooling,  heating,  fan  only,  and  automatic  operation" 

[

4

  24]  for

details on fan only operation.

▪ Turn off the power. The user interface display disappears.

▪ Clean air filters and casings of indoor units (see 

"17.2.1 To clean

the air filter" 

[

4

 26] and 

"17.2.3 To clean the air outlet and outside

panels" 

[

4

 27]).

17.5

About the refrigerant

This  product  contains  fluorinated  greenhouse  gases.  Do  NOT  vent
gases into the atmosphere.

Refrigerant type: R32

Global warming potential (GWP) value: 675

Refrigerant type: R410A

Global warming potential (GWP) value: 2087.5

NOTICE

Applicable  legislation  on 

fluorinated  greenhouse  gases

requires  that  the  refrigerant  charge  of  the  unit  is  indicated
both in weight and CO

2

 equivalent.

Formula  to  calculate  the  quantity  in  CO

2

  equivalent

tonnes:

  GWP  value  of  the  refrigerant  ×  total  refrigerant

charge [in kg] / 1000

Please contact your installer for more information.

WARNING: FLAMMABLE MATERIAL

The  R32  refrigerant  (if  applicable)  in  this  unit  is  mildly
flammable.  Refer  to  the  outdoor  unit  specifications  for  the
type of refrigerant to be used.

Summary of Contents for FCAHG100HVEB

Page 1: ...Installer and user reference guide Split system air conditioners English Installer and user reference guide Split system air conditioners FCAHG71HVEB FCAHG100HVEB FCAHG125HVEB FCAHG140HVEB...

Page 2: ...nect the electrical wiring on the indoor unit 17 7 Configuration 18 7 1 Field setting 18 8 Commissioning 19 8 1 Overview Commissioning 19 8 2 Precautions when commissioning 19 8 3 Checklist before com...

Page 3: ...ol Explanation For more information see the installer and user reference guide 1 2 For the user If you are NOT sure how to operate the unit contact your installer This appliance can be used by childre...

Page 4: ...lation site Provide sufficient space around the unit for servicing and air circulation Make sure the installation site withstands the weight and vibration of the unit Make sure the area is well ventil...

Page 5: ...306 2 6 5 13 6 2 24 3 2 6 57 5 6 2 327 2 8 5 53 6 4 25 9 2 8 66 7 6 4 349 3 0 5 92 6 6 27 6 3 0 76 6 6 6 371 3 2 6 48 6 8 29 3 3 2 87 2 6 8 394 3 4 7 32 7 0 31 0 3 4 98 4 7 0 417 3 6 8 20 7 2 32 8 3...

Page 6: ...pen refrigerant cylinders slowly Charge the refrigerant in liquid form Adding it in gas form may prevent normal operation CAUTION When the refrigerant charging procedure is done or when pausing close...

Page 7: ...xerted on the terminal board Use an appropriate screwdriver for tightening the terminal screws A screwdriver with a small head will damage the head and make proper tightening impossible Over tightenin...

Page 8: ...to the hanger brackets without exerting any pressure on other parts especially on refrigerant piping drain piping and other resin parts 1 2 3 2 2 To remove the accessories from the indoor unit 1 1 1 8...

Page 9: ...n of the system must not be done at temperatures below 15 C a b c d e i f g h a Indoor unit b Outdoor unit c User interface d Suction air e Discharge air f Refrigerant piping interconnection cable g D...

Page 10: ...mind the following to avoid interference Install the wireless user interface as close as possible to the indoor unit Install the indoor unit as far as possible from the fluorescent lights Take care th...

Page 11: ...a heat resistance of at least 120 C Insulation thickness Ambient temperature Humidity Minimum thickness 30 C 75 to 80 RH 15 mm 30 C 80 RH 20 mm 5 4 Preparing electrical wiring 5 4 1 About preparing e...

Page 12: ...e installing the unit For existing ceilings use anchors For new ceilings use sunken inserts sunken anchors or other field supplied parts A c b d e a A 50 100 mm In case of installation with standard p...

Page 13: ...size Keep the pipe size equal to or greater than that of the connecting pipe vinyl pipe of 25 mm nominal diameter and 32 mm outer diameter Slope Make sure the drain piping slopes down at least 1 100 t...

Page 14: ...a Plastic watering can b Service drain outlet with rubber plug Use this outlet to drain water from the drain pan c Drain pump location d Drain pipe connection e Drain pipe 5 Turn OFF the power 6 Disc...

Page 15: ...itional refrigerant it is recommended to open the refrigerant stop valve after charging 6 3 3 Guidelines when connecting the refrigerant piping Take the following guidelines into account when connecti...

Page 16: ...on pieces 4 Wrap the sealing pad from the base of the unit to the top of the flare nut NOTICE Make sure to insulate all refrigerant piping Any exposed piping might cause condensation 6 4 Connecting th...

Page 17: ...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 s...

Page 18: ...oration panel type When installing or changing the decoration panel type ALWAYS check if the correct values are set If the decoration panel is used Then 1 M C1 C2 Standard or self cleaning 13 23 15 01...

Page 19: ...interface is used However remove the wires attached to the user interface terminal board of the master unit 1 50 Hz 220 240 V b a e1 A B e2 c d A Master unit B Slave unit a Interconnection cable b Pow...

Page 20: ...d The fuses or locally installed protection devices are installed according to this document and have NOT been bypassed The power supply voltage matches the voltage on the identification label of the...

Page 21: ...se power supply units Note Operation will be impossible Turn OFF the power recheck the wiring and switch two of the three electrical wires Error code Possible cause L4 The air inlet or air outlet is b...

Page 22: ...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 Stepper mot...

Page 23: ...68 4 72 15 50 0 25 61 13 User interface CAUTION NEVER touch the internal parts of the controller Do NOT remove the front panel Some parts inside are dangerous to touch and appliance problems may happ...

Page 24: ...unit will stop fan operation the refrigerant cycle will reverse and energy from inside the building will be used to defrost the outdoor unit coil The indoor unit will indicate defrost operation on th...

Page 25: ...2 Circulation Airflow Individual Air Direction Energy Saving Options Schedule Maintenance Information Configuration 4 Choose enable and confirm Return Setting Return Setting Circulation Airflow Enable...

Page 26: ...N Before accessing terminal devices make sure to interrupt all power supply NOTICE When cleaning the heat exchanger make sure to remove the switch box fan motor drain pump and float switch Water or de...

Page 27: ...tlet vents of indoor units and outdoor units Clean air filters and casings of indoor units see 17 2 1 To clean the air filter 426 and 17 2 3 To clean the air outlet and outside panels 427 Turn on the...

Page 28: ...oms or malfunction and details of the defect WARNING Do NOT modify disassemble remove reinstall or repair the unit yourself as incorrect dismantling or installation may cause an electric shock or fire...

Page 29: ...ower failure Wait until power is restored If power failure occurs during operation the system automatically restarts immediately after power is restored Check if no fuse has blown or breaker is activa...

Page 30: ...ling or defrost operation This is the sound of refrigerant gas flowing through both indoor and outdoor units A hissing sound which is heard at the start or immediately after stopping operation or defr...

Page 31: ...lication Accessories Labels manuals information sheets and equipment that are delivered with the product and that need to be installed according to the instructions in the accompanying documentation O...

Page 32: ...4P561449 1A 2019 09 Copyright 2018 Daikin...

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