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1 About the documentation

Installation and operation manual

3

RXYTQ8~16T7YF
VRV IV system air conditioner
4P388987-1C – 2016.02

14.2.5

Symptom: The fan direction does not correspond to
the setting ................................................................... 33

14.2.6

Symptom: White mist comes out of a unit (Indoor
unit) ............................................................................. 33

14.2.7

Symptom: White mist comes out of a unit (Indoor
unit, outdoor unit) ........................................................ 33

14.2.8

Symptom: The user interface display reads "U4" or
"U5" and stops, but then restarts after a few minutes . 33

14.2.9

Symptom: Noise of air conditioners (Indoor unit)........ 33

14.2.10 Symptom: Noise of air conditioners (Indoor unit,

outdoor unit)................................................................ 33

14.2.11 Symptom: Noise of air conditioners (Outdoor unit) ..... 33

14.2.12 Symptom: Dust comes out of the unit ......................... 33

14.2.13 Symptom: The units can give off odours..................... 33

14.2.14 Symptom: The outdoor unit fan does not spin ............ 33

14.2.15 Symptom: The display shows "88".............................. 33

14.2.16 Symptom: The compressor in the outdoor unit does

not stop after a short heating operation ...................... 33

14.2.17 Symptom: The inside of an outdoor unit is warm

even when the unit has stopped ................................. 33

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

stopped ....................................................................... 33

15 Relocation

33

16 Disposal

33

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 box of the outdoor unit)

Outdoor unit installation and operation manual:

▪ Installation and operation instructions

▪ Format: Paper (in the box of the outdoor 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

To remove the accessories from
the outdoor unit

Make sure that all accessories are available in the unit.

a

e

3P328191-1

BE SURE TO FILL OUT THE BLANKS, WHICH ARE NEEDED FOR AFTER-SALE SERVICES.

REQUEST FOR THE INDICATION OF INSTALLATION INFORMATION

1. RECORD OF INDOOR UNIT MODEL AND INSTALLATION SITE

2. RECORD FOR SETTINGS (CONTENTS SEE INSTALLATION MANUAL)

SETTING

40

30

10

20

19

9

29

39

38

28

8

18

17

7

27

37

36

26

6

16

15

5

25

35

34

23

24

4

3

2

1

INSTALLATION

MODELNAME

No.

12

13

14

50

49

48

47

46

45

60

59

58

57

56

64

63

62

61

11

22

21

33

32

31

44

43

42

41

55

54

53

52

51

SITE

INSTALLATION

MODELNAME

No.

SITE

INSTALLATION

MODELNAME

No.

SITE

INSTALLATION

MODELNAME

No.

SITE

INSTALLATION

MODELNAME

No.

SITE

INSTALLATION

MODELNAME

No.

SITE

INSTALLATION

MODELNAME

No.

SITE

3. RECORD OF INSTALLATION DATE

6. AFTER EQUIPPING, PLEASE PUT IT ON THE BACK SIDE OF THE FRONT PLATE.

DAY                   MONTH                       YEAR

4. MODEL NAME

5. MANUFACTURING NUMBER

VALUE

REMARK

DATE

SETTING

VALUE

REMARK

DATE

c

b

d

3P328192-1

3. FOR DETAILS CONCERNING PIPING SELECTION AND CALCULATION OR HOW TO OPERATE THE LEAK DETECTION FUNCTION, PLEASE REFER TO THE INSTALLATION MANUAL.

2. RECORD OF ADDITIONAL REFRIGERANT CHARGE AMOUNT AND RESULT OF LEAK CHECK OPERATION

REQUEST FOR THE INDICATION OF ADDITIONAL REFRIGERANT CHARGING AND LEAK DETECTION OPERATION RESULT
BE SURE TO FILL OUT THE BLANKS, WHICH ARE NEEDED FOR AFTER-SALE SERVICES.

1. CALCULATION OF ADDITIONAL REFRIGERANT CHARGING AMOUNT

4. AFTER FILLING IN THIS TABLE, PLEASE PUT IT ON THE SWITCH BOX COVER.

(m) x 0.18

(m) x 0.37

kg

OUTDOOR

  UNIT

(m) x 0.26

(m) x 0.12

(m) x 0.059

(m) x 0.022

ADDITIONAL CHARGING

AMOUNT

TOTAL LENGTH OF LIQUID

PIPE SIZE O22.2 x 0.37

TOTAL LENGTH OF LIQUID

PIPE SIZE O19.1 x 0.26

TOTAL LENGTH OF LIQUID

PIPE SIZE O15.9 x 0.18

TOTAL LENGTH OF LIQUID

PIPE SIZE O12.7 x 0.12

TOTAL LENGTH OF LIQUID

PIPE SIZE O9.5 x 0.059

TOTAL LENGTH OF LIQUID

PIPE SIZE O6.4 x 0.022

105%< CR < 130%

50%< CR < 105%

50%< CR < 70%

70%< CR < 85%

85%< CR < 105%

105%< CR < 130%

8HP

Total indoor unit

capacity connection

ratio (CR)

10-12HP 14-16HP 18-20HP

2.0

1.5

1.5

1.2

1.5

1

1

0.7

1.0

0.5

0.5

0.3

0.5

0

0

0

1.0

0.5

0.5

0.5

0.5

0

0

0

Total indoor unit capacity 

when piping length <30m

Total indoor unit capacity

when piping length >30m

kg

1.3

1.1

0.9

RYYQ18-20

RYYQ14-16

RYYQ8~12

kg

ONLY FOR RYYQ8~20 MODELS

DATE
AMOUNT

CALCULATE THE ADDITIONAL REFRIGERANT CHARGING AMOUNT BASED ON THE FORMULA BELOW BEFORE CHARGING.

SHIPMENT (INDICATED ON THE MACHINE NAMEPLATE) AND THE ADDITIONAL AMOUNT SHOWN AS FOLLOWS :

WHEN RE-CHARGING TOTAL AMOUNT OF REFRIGERANT , CHARGE THE TOTAL OF THE AMOUNT CHARGED AT

RESULT LEAK CHECK

DATE
AMOUNT
RESULT LEAK CHECK

DATE
AMOUNT
RESULT LEAK CHECK

DATE
AMOUNT
RESULT LEAK CHECK

a

General safety precautions

b

Installation manual and operation manual

c

Additional refrigerant charge label

d

Installation information sticker

e

Piping accessory bag

2.2

Accessory pipes: Diameters

Accessory pipes (mm)

HP

Øa

Øb

Gas pipe

▪ Front connection

ID Øa

ID Øb

▪ Bottom connection

ID Øa

OD Øb

8

19.1

10

25.4

22.2

12

25.4

28.6

14

16

Liquid pipe

▪ Front connection

ID Øb

ID Øa

▪ Bottom connection

ID Øb

ID Øa

8

9.5

10

12

9.5

12.7

14

12.7

16

2.3

To remove the transportation stay

Only for 14+16 HP

Summary of Contents for RXYTQ8T7YF

Page 1: ...Installation and operation manual VRV IV system air conditioner English Installation and operation manual VRV IV system air conditioner RXYTQ8T7YF RXYTQ10T7YF RXYTQ12T7YF RXYTQ14T7YF RXYTQ16T7YF...

Page 2: ...iring Overview 16 5 7 2 Guidelines when knocking out knockout holes 16 5 7 3 To route and fix the transmission wiring 16 5 7 4 To connect the transmission wiring 17 5 7 5 To finish the transmission wi...

Page 3: ...AL SETTING 40 30 10 20 19 9 29 39 38 28 8 18 17 7 27 37 36 26 6 16 15 5 25 35 34 23 24 4 3 2 1 INSTALLATION MODELNAME No 12 13 14 50 49 48 47 46 45 60 59 58 57 56 64 63 62 61 11 22 21 33 32 31 44 43 4...

Page 4: ...nd in cooling mode at ambient temperatures from 5 C DB to 52 C DB 3 2 System layout NOTICE Design of the system must not be done at temperatures below 15 C e d c c b f a a VRV IV Heat pump outdoor uni...

Page 5: ...200 19 1 200 x 290 22 2 Indoor unit capacity index Piping outer diameter size mm Gas pipe Liquid pipe 290 x 420 28 6 12 7 420 x 640 15 9 640 x 920 34 9 19 1 920 41 3 Example Downstream capacity for E...

Page 6: ...HRQ22M64T 640 KHRQ22M75T Concerning refnet headers choose from the following table in accordance with the total capacity of all the indoor units connected below the refnet header Indoor unit capacity...

Page 7: ...adding the minimum circuit amps of each used unit according to the table above multiply the result by 1 1 and select the next higher recommended fuse capacity Example Combining the RXYTQ30 by using t...

Page 8: ...stallation is on a solid longitudinal foundation steel beam frame or concrete The foundation must be larger than the grey marked area 729 613 929 AB AA a mm Minimum foundation a Anchor point 4 HP AA A...

Page 9: ...abel a attached to the joint comes to the top Do not tilt the joint more than 7 5 see view A Do not install the joint vertically see view B a a A B 7 5 7 5 a Caution label X Not allowed O Allowed Make...

Page 10: ...o close Shaft Valve body Hexagonal wrench Cap valve lid Service port 9 5 5 4 6 6 4 mm 13 5 16 5 11 5 13 9 12 7 8 1 9 9 18 0 22 0 15 9 13 5 16 5 6 mm 23 0 27 0 19 1 27 0 33 0 8 mm 22 5 27 5 25 4 5 3 7...

Page 11: ...ait until the outdoor unit has finished the initialisation to apply setting 2 21 Leak test and vacuum drying Checking the refrigerant piping involves Checking for any leakages in the refrigerant pipin...

Page 12: ...Should you fail to reach the target vacuum within 2 hours or maintain the vacuum for 1 hour the system may contain too much moisture In that case break the vacuum by pressurising with nitrogen gas to...

Page 13: ...e see 5 6 5 To charge refrigerant on page 15 It can be skipped but charging will take longer then A flow chart is available which gives an overview of the possibilities and actions to be taken see 5 6...

Page 14: ...refrigerant charge label Go to test run Step 3b Close valves C and B R Q R Q R Q Continued on next page p p R410A N2 C A B Charging refrigerant Step 5 Proceed with manual charge Step 6 Activate field...

Page 15: ...harge port and charge the remaining additional refrigerant through this port Open all outdoor unit stop valves At this point valve A must remain closed p p R410A a c d b A a Weighing scales b Refriger...

Page 16: ...n knocking out knockout holes To punch a knockout hole hit on it with a hammer After knocking out the holes we recommend removing any burrs and paint the edges and areas around the holes using repair...

Page 17: ...tion The wiring for the other systems must be connected to the F1 F2 Out Out terminals of the PCB in the outdoor unit to which the interconnecting wiring for the indoor units is connected The base uni...

Page 18: ...e push buttons it is possible to Perform special actions testrun etc Perform field settings demand operation low noise etc DIP switches By operating the DIP switches it is possible to DS1 1 COOL HEAT...

Page 19: ...ndoor units When the communication between indoor units and outdoor unit s is established and normal the 7 segment display indication state will be as below default situation when shipped from factory...

Page 20: ...or units 1 13 Shows the total number of connected outdoor units in case of multiple outdoor system 1 17 1 18 1 19 Shows 1 17 The latest malfunction code 1 18 The 2nd last malfunction code 1 19 The 3rd...

Page 21: ...n the installer and user reference guide Installation Check that the unit is properly installed to avoid abnormal noises and vibrations when starting up the unit Field wiring Be sure that the field wi...

Page 22: ...r 2 on page 19 Push BS2 for 5 seconds or more The unit will start test operation Result The test operation is automatically carried out the outdoor unit display will indicate and the indication Test o...

Page 23: ...n on PCB or actuator Discharge temperature too high R21T R22T Stop valve closed Refrigerant shortage Open stop valves Check refrigerant amount recharge unit Compressor casing temperature too high R8T...

Page 24: ...tion Transmission outdoor unit inverter INV2 transmission trouble A1P X20A X28A X40A Check connection INV1 unbalanced power supply voltage Check if power supply is within range INV2 unbalanced power s...

Page 25: ...ered unit amount by monitor mode or wait till initialisation is finished Stop valve closed or wrong during system test run Open stop valves 9 Technical data Latest information can be found in the tech...

Page 26: ...based on cooling operation at 46 C ambient temperature standard conditions INFORMATION Further specifications can be found in the technical engineering data 9 2 Piping diagram Outdoor unit Piping dia...

Page 27: ...L S1PH S2PH HPS R6T R5T R7T R1T R4T R21T R22T R3T HPS n a Compressor M1C b Compressor M2C c Heat exchanger d Fan e Fan motor M1F M2F f Accumulator g Expansion valve main Y1E h Expansion valve subcool...

Page 28: ...e found in the technical engineering data 12 2 Operating the system 12 2 1 About operating the system Operation procedure varies according to the combination of outdoor unit and user interface To prot...

Page 29: ...m temperature is low 20 C 12 3 2 To use the dry program WITHOUT cool heat changeover remote control switch To start 1 Press the operation mode selector button on the user interface several times and s...

Page 30: ...interface Only the master user interface can select heating or cooling mode 13 Maintenance and service NOTICE Never inspect or service the unit by yourself Ask a qualified service person to perform th...

Page 31: ...tify your installer and report the malfunction code If the system does not properly operate except for the above mentioned cases and none of the above mentioned malfunctions is evident investigate the...

Page 32: ...r units combined Indoor unit malfunction Connection malfunction over indoor units or type mismatch Centralised address duplication Malfunction in communication centralised control device indoor unit A...

Page 33: ...topped When another indoor unit is in operation this noise is heard In order to prevent oil and refrigerant from remaining in the system a small amount of refrigerant is kept flowing 14 2 10 Symptom N...

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Page 36: ...4P388987 1 C 0000000F 4P388987 1C 2016 02 Copyright 2015 Daikin...

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