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16 Maintenance and service

Installer and user reference guide

27

FFA25~60A2VEB(9)
Split system air conditioners
4P550955-4 – 2018.08

BYFQ60C

90°

3

Remove the air filter.

BYFQ60B

BYFQ60C

1

3

3

2

3

3

1

2

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 (step 3 in reverse order).

6

Reattach the suction grille and close it (step 2 and 1 in reverse
order).

16.1.3

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.

16.2

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 

"16.1.1 To clean

the  air  filter"  on  page  26

  and 

"16.1.3  To  clean  the  air  outlet  and

outside panels" on page 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.

16.3

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 

"14.2.2  About

cooling,  heating,  fan  only,  and  automatic  operation"  on  page  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 

"16.1.1 To clean

the  air  filter"  on  page  26

  and 

"16.1.3  To  clean  the  air  outlet  and

outside panels" on page 27

).

16.4

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

In  Europe,  the 

greenhouse  gas  emissions

  of  the  total

refrigerant charge in the system (expressed as tonnes CO

2

equivalent) is used to determine the maintenance intervals.
Follow the applicable legislation.

Formula  to  calculate  the  greenhouse  gas  emissions:

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.

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  the  refrigerant  inside  the  system  is

odourless.

WARNING

R410A  is  a  non-combustible  refrigerant,  and  R32  is  a
mildly flammable refrigerant; they normally don’t leak. If the
refrigerant  leaks  in  the  room  and  comes  into  contact  with
fire from a burner, a heater, or a cooker, this may result in
a fire (in case of R32), or the formation of a harmful gas.

Turn  off  any  combustible  heating  devices,  ventilate  the
room,  and  contact  the  dealer  from  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.

Summary of Contents for FFA25A2VEB9

Page 1: ...ser reference guide Split system air conditioners English Installer and user reference guide Split system air conditioners FFA25A2VEB FFA35A2VEB FFA50A2VEB FFA60A2VEB FFA25A2VEB9 FFA35A2VEB9 FFA50A2VE...

Page 2: ...electrical wiring 17 6 4 4 Specifications of standard wiring components 17 6 4 5 To connect the electrical wiring on the indoor unit 17 7 Configuration 18 7 1 Field settings 18 8 Commissioning 19 8 1...

Page 3: ...ildren aged from 8 years and above and persons with reduced physical sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning us...

Page 4: ...ed Do NOT block any ventilation openings Make sure the unit is level Do NOT install the unit in the following places In potentially explosive atmospheres In places where there is machinery that emits...

Page 5: ...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 6 110 7 2 441 3 8 9 14 7 4 34 7 3 8 123 7 4 466 4 0 10 1 7 6 36 6 4 0 136 7 6 4...

Page 6: ...n Open 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 clo...

Page 7: ...head and make proper tightening impossible Over tightening the terminal screws may break them WARNING After finishing the electrical work confirm that each electrical component and terminal inside th...

Page 8: ...ter describes what you have to do after the box with the indoor unit is delivered on site Keep the following in mind At delivery the unit MUST be checked for damage Any damage MUST be reported immedia...

Page 9: ...5 46 C DB 9 21 C DB 10 15 C WB 18 37 C DB 12 28 C WB 10 27 C DB RXS25 60 10 46 C DB 15 24 C DB 16 18 C WB 18 32 C DB 10 30 C DB Outdoor units Cooling Heating 2MXS50 10 46 C DB 15 24 C DB 16 18 C WB 1...

Page 10: ...ance not accessible to 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 en...

Page 11: ...ce to the floor see below C 295 mm In case of installation with BYFQ60B 300 mm In case of installation with BYFQ60C a Indoor unit b Lighting the figure shows ceiling mounted lighting but recessed ligh...

Page 12: ...or installation INFORMATION This chapter only describes installation instructions specific to the indoor unit For the other instructions see The installation manual of the outdoor unit The installatio...

Page 13: ...5 mm 595 mm 10 mm 12 5 mm A Ceiling opening B Distance between the unit and the ceiling opening C Overlap between the decoration panel and the suspended ceiling Level Make sure the unit is level at a...

Page 14: ...6 5 2 c e 4 b a d b a d c 3 1 2 6 1 a Drain pipe connection attached to the unit b Drain hose accessory c Metal clamp accessory d Large sealing pad accessory e Insulation piece drain pipe accessory f...

Page 15: ...refrigerant to be used Only use installation tools e g manifold gauge set that are exclusively used for R32 or R410A installations to withstand the pressure and to prevent foreign materials e g minera...

Page 16: ...tions 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 2 4 3 g 1 2 3 4 g A B 1 A Gas piping B Liquid piping a Insulation material field supply b...

Page 17: ...30 V User interface cable Vinyl cords with 0 75 to 1 25 mm sheath or cables 2 core wires Maximum 500 m 6 4 5 To connect the electrical wiring on the indoor unit NOTICE Follow the wiring diagram delive...

Page 18: ...t they correspond with the actual installation setup and with the needs of the user Ceiling height Air flow direction Air volume when thermostat control is OFF Time to clean air filter Setting Ceiling...

Page 19: ...power consumption NOTICE Before starting up the system the unit MUST be energised for at least 6 hours The crankcase heater needs to heat up the compressor oil to avoid oil shortage and compressor bre...

Page 20: ...it first The backlight is lit for 30 seconds when you press a button 1 Perform introductory steps Action 1 Open the liquid stop valve A and gas stop valve B by removing the stem cap and turning counte...

Page 21: ...hase power supply units Note Operation will be impossible Turn OFF the power recheck the wiring and switch two of the three electrical wires U4 or UF The inter unit branch wiring is not correct UA The...

Page 22: ...ESS H P LED V L PILOT LAMP LIGHT EMITTING DIODE 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 MA...

Page 23: ...ce see the operation manual of the installed user interface 13 Before operation WARNING This unit contains electrical and hot parts WARNING Before operating the unit be sure the installation has been...

Page 24: ...n It may take longer to reach the set temperature for general heating operation than for cooling operation The following operation is performed in order to prevent the heating capacity from dropping o...

Page 25: ...lades while the swing flap is in operation Fingers may become caught or the unit may break down NOTICE The movable limit of the flap is changeable Contact your dealer for details only for double flow...

Page 26: ...result in burnout of these components 16 1 Cleaning the air filter suction grille air outlet and outside panels 16 1 1 To clean the air filter When to clean the air filter Rule of thumb Clean every 6...

Page 27: ...in order to dry the interior of the units Refer to 14 2 2 About cooling heating fan only and automatic operation on page 24 for details on fan only operation Turn off the power The user interface dis...

Page 28: ...face and switches 25 000 hours Drain pan 8 years Expansion valve 20 000 hours Solenoid valve 20 000 hours The table assumes the following conditions of use Normal use without frequent starting and sto...

Page 29: ...N OFF button on the user interface is pressed If the operation lamp lights the system is in normal condition To prevent overloading of the compressor motor the air conditioner starts 5 minutes after i...

Page 30: ...s is to prevent refrigerant from remaining in the compressor The unit will stop after 5 to 10 minutes 18 Relocation Contact your dealer for removing and reinstalling the total unit Moving units requir...

Page 31: ......

Page 32: ...4P550955 4 2018 08 Copyright 2017 Daikin...

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