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2 About the documentation

Installer and user reference guide

7

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

WARNING

▪ ONLY use copper wires.

▪ Make sure the field wiring complies with the applicable

legislation.

▪ All field wiring MUST be performed in accordance with

the wiring diagram supplied with the product.

▪ NEVER  squeeze  bundled  cables  and  make  sure  they

do  NOT  come  in  contact  with  the  piping  and  sharp
edges. Make sure no external pressure is applied to the
terminal connections.

▪ Make sure to install earth wiring. Do NOT earth the unit

to  a  utility  pipe,  surge  absorber,  or  telephone  earth.
Incomplete earth may cause electrical shock.

▪ Make  sure  to  use  a  dedicated  power  circuit.  NEVER

use a power supply shared by another appliance.

▪ Make  sure  to  install  the  required  fuses  or  circuit

breakers.

▪ Make sure to install an earth leakage protector. Failure

to do so may cause electric shock or fire.

▪ When installing the earth leakage protector, make sure

it  is  compatible  with  the  inverter  (resistant  to  high
frequency electric noise) to avoid unnecessary opening
of the earth leakage protector.

CAUTION

When  connecting  the  power  supply,  the  earth  connection
must be made before the current-carrying connections are
established.  When  disconnecting  the  power  supply,  the
current-carrying connections must be separated before the
earth connection is. The length of the conductors between
the  power  supply  stress  relief  and  the  terminal  block  itself
must  be  as  such  that  the  current-carrying  wires  are
tautened before the earth wire is in case the power supply
is pulled loose from the stress relief.

NOTICE

Precautions when laying power wiring:

▪ Do  NOT  connect  wiring  of  different  thicknesses  to  the

power  terminal  block  (slack  in  the  power  wiring  may
cause abnormal heat).

▪ When  connecting  wiring  which  is  the  same  thickness,

do as shown in the figure above.

▪ For wiring, use the designated power wire and connect

firmly,  then  secure  to  prevent  outside  pressure  being
exerted 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-tightening the terminal screws may break them.

WARNING

▪ After  finishing  the  electrical  work,  confirm  that  each

electrical  component  and  terminal  inside  the  electrical
components box 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  exists  the  possibility  of  reversed  phase  after  a
momentary black out and the power goes on and off while
the  product  is  operating,  attach  a  reversed  phase
protection  circuit  locally.  Running  the  product  in  reversed
phase can break the compressor and other parts.

2

About the documentation

2.1

About this document

Target audience

Authorised inst end users

INFORMATION

This appliance is intended to be used by expert or trained
users  in  shops,  in  light  industry,  and  on  farms,  or  for
commercial and household use by lay persons.

Documentation set

This  document  is  part  of  a  documentation  set.  The  complete  set
consists of:

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 operation instructions

▪ Format: Paper (in the box of the indoor unit)

Installer and user reference guide:

▪ Preparation of the installation, good practices, reference data,…

▪ Detailed  step-by-step  instructions  and  background  information

for basic and advanced usage

▪ Format:  Digital  files  on 

http://www.daikineurope.com/support-

and-manuals/product-information/

Latest revisions of the supplied documentation may be available on
the regional Daikin website or via your dealer.

The original documentation is written in English. All other languages
are translations.

Technical engineering data

▪ A 

subset

  of  the  latest  technical  data  is  available  on  the  regional

Daikin website (publicly accessible).

▪ The 

full  set

  of  latest  technical  data  is  available  on  the  Daikin

extranet (authentication required).

2.2

Installer and user reference guide
at a glance

Chapter

Description

General safety
precautions

Safety instructions that you must read
before installing

About the documentation

What documentation exists for the
installer

About the box

How to unpack the units and remove
their accessories

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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