Daikin RKXYQ5T7Y1B, Installation And Operation Manual

1 About the documentation

Installation and operation manual

4

RKXYQ5T7Y1B

VRV IV compressor unit for indoor installation

4P408443-1 – 2015.07

14.2.8

Symptom: The user interface display reads "U4" or
"U5" and stops, but then restarts after a few minutes . 30

14.2.9

Symptom: Noise of air conditioners (Indoor unit, heat
exchanger unit) ........................................................... 30

14.2.10 Symptom: Noise of air conditioners (Indoor unit,

compressor unit, heat exchanger unit)........................ 31

14.2.11 Symptom: Noise of air conditioners (compressor

unit, heat exchanger unit) ........................................... 31

14.2.12 Symptom: Dust comes out of the heat exchanger

unit .............................................................................. 31

14.2.13 Symptom: The units can give off odours..................... 31

14.2.14 Symptom: The heat exchanger unit fan does not spin

31

14.2.15 Symptom: The display shows "88".............................. 31

14.2.16 Symptom: The compressor in the compressor unit

does not stop after a short heating operation ............. 31

14.2.17 Symptom: The inside of an compressor unit is warm

even when the unit has stopped ................................. 31

14.2.18 Symptom: Hot air can be felt when the indoor unit is

stopped ....................................................................... 31

15 Relocation

31

16 Disposal

31

1

About the documentation

1.1

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 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 accessory bag of the compressor unit)

▪

Compressor unit installation and operation manual:

▪ Installation and operation instructions

▪ Format: Paper (in the accessory bag of the compressor unit)

▪

Heat exchanger unit installation manual:

▪ Installation instructions

▪ Format:  Paper  (in  the  accessory  bag  of  the  heat  exchanger

unit)

▪

Installer and user reference guide:

▪ Preparation  of  the  installation,  technical  specifications,

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.

For the installer

2

About the box

2.1

Compressor unit

2.1.1

To remove the accessories from the
compressor unit

1

Remove the accessories (part 1).

a

1×

b

1×

c

1×

d

1×

e

1×

f

3×

2

Remove the service cover. See 

"5.1.1 To open the compressor

unit" on page 7

.

3

Remove the accessories (part 2).

1×

1×

1×

1×

i

j

h

g

a

General safety precautions

b

Compressor unit installation and operation manual

c

Fluorinated greenhouse gases label

d

Multilingual fluorinated greenhouse gases label

e

Screw (for shield of transmission wiring)

f

Cable tie

g

Gas piping accessory (circuit 1: to heat exchanger unit)
(Ø19.1 mm)

h

Liquid piping accessory (circuit 1: to heat exchanger unit)
(Ø12.7 mm)

i

Liquid piping accessory (circuit 2: to indoor units)
(Ø9.5 mm)

j

Gas piping accessory (circuit 2: to indoor units)
(Ø15.9 mm)

2.1.2

To remove the transportation stay

NOTICE

If the unit is operated with the transportation stay attached,
abnormal vibration or noise may be generated.

The  transportation  stay  installed  over  the  compressor  leg  for
protecting  the  unit  during  transport  must  be  removed.  Proceed  as
shown in the figure and procedure below.

1

Slightly loosen the fixing nut (a).

2

Remove  the  transportation  stay  (b)  as  shown  in  the  figure
below.

3

Tighten the fixing nut (a) again.