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13 Piping installation

Installation and operation manual

25

RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600329-1A – 2020.01

INFORMATION

It  is  recommended  to  install  the  optional  bottom  plate
heater  (EKBPH250D7)  when  the  unit  is  installed  in  cold
climates.

12.3.4

To prevent the outdoor unit from falling
over

In  case  the  unit  is  installed  in  places  where  strong  wind  can  tilt  the
unit, take following measure:

1

Prepare  2  cables  as  indicated  in  the  following  illustration  (field
supply).

2

Place the 2 cables over the outdoor unit.

3

Insert  a  rubber  sheet  between  the  cables  and  the  outdoor  unit
to prevent the cables from scratching the paint (field supply).

4

Attach the ends of the cables.

5

Tighten the cables.

13

Piping installation

13.1

Preparing refrigerant piping

13.1.1

Refrigerant piping requirements

NOTICE

The  piping  and  other  pressure-containing  parts  shall  be
suitable  for  refrigerant.  Use  phosphoric  acid  deoxidised
seamless copper for refrigerant.

▪ Foreign materials inside pipes (including oils for fabrication) must

be ≤30 mg/10 m.

13.1.2

Refrigerant piping material

Piping material:

 Phosphoric acid deoxidised seamless copper.

Flare connections:

 Only use annealed material.

Piping temper grade and thickness:

Outer diameter

(Ø)

Temper grade

Thickness (t)

(a)

6.4 mm (1/4")

9.5 mm (3/8")

12.7 mm (1/2")

Annealed (O)

≥0.80 mm

t

Ø

15.9 mm (5/8")

Annealed (O)

≥0.99 mm

19.1 mm (3/4")

Half hard (1/2H)

≥0.80 mm

(a)

Depending on the applicable legislation and the maximum
working pressure of the unit (see "PS High" on the unit name
plate), larger piping thickness might be required.

13.1.3

To select the piping size

Determine  the  proper  size  using  the  following  tables  and  reference
figure (only for indication).

A

B-1

B-2

C-1

C-2

C-3

C-4

1

3-1

3-2

3-3

3-4

VRV DX

2

2

2

1

Outdoor unit

2

Refrigerant branch kits

3-1~3-4

VRV DX indoor units

A

Piping between outdoor unit and (first) refrigerant branch
kit

B-1 B-2

Piping between refrigerant branch kits

C-1~C-4

Piping between refrigerant branch kit and indoor unit

In  case  the  required  pipe  sizes  (inch  sizes)  are  not  available,  it  is
also allowed to use other diameters (mm sizes), taken the following
into account:

▪ Select the pipe size nearest to the required size.

▪ Use  the  suitable  adapters  for  the  change-over  from  inch  to  mm

pipes (field supply).

▪ The  additional  refrigerant  calculation  has  to  be  adjusted  as

mentioned  in 

"14.2  To  determine  the  additional  refrigerant

amount" 

[

4

 29].

A: Piping between outdoor unit and (first)
refrigerant branch kit

When  the  equivalent  pipe  length  between  outdoor  unit  and  the
furthest indoor unit is 90 m or more (b+d), the size of the main gas
pipe  (b)  must  be  increased  (size-up).  If  the  recommended  gas  pipe
(size-up)  is  not  available,  you  must  use  the  standard  size  (which
might result in a small capacity decrease).

e

d

b

c

a

a

Outdoor unit

b

Main gas pipe (increase piping size if length b+d ≥ 90 m)

c

First refrigerant branch kit

d

Piping between indoor unit and first refrigerant branch kit

e

Furthest indoor unit

Outdoor unit

capacity type (HP)

Piping outer diameter size (mm)

Gas pipe

Liquid pipe

Standard

Size-up
(only b)

4+5+6

15.9

19.1

9.5

B: Piping between refrigerant branch kits

Choose  from  the  following  table  in  accordance  with  the  indoor  unit
total  capacity  type,  connected  downstream.  Do  not  let  the
connection  piping  exceed  the  refrigerant  piping  size  chosen  by  the
general system model name.

Summary of Contents for VRV 5-S Series

Page 1: ...llation and operation manual VRV 5 S system air conditioner English Installation and operation manual VRV 5 S system air conditioner RXYSA4A7V1B RXYSA5A7V1B RXYSA6A7V1B RXYSA4A7Y1B RXYSA5A7Y1B RXYSA6A...

Page 2: ...HD HU 200 1000 1000 500 HD HU A B C 200 1 300 1000 A B C E 200 1 300 1000 1000 500 D 1000 D E 1000 1000 500 B D HD HU 300 1000 250 1500 300 1500 B D E HB HU 300 1000 1000 500 HU HB HU 300 1250 1000 50...

Page 3: ...30 7 d 92 36 0 c 31 0 d 93 36 4 c 31 4 d 94 36 7 c 31 7 d 95 37 0 c 32 0 d 96 37 4 c 32 4 d 97 37 7 c 32 7 d 98 38 0 c 33 0 d 99 38 4 c 33 4 d 100 38 7 c 33 7 d 63 26 2 c 21 2 d 64 26 6 c 21 6 d 65 26...

Page 4: ...1 12 13 14 15 16 17 Direktiver med senere ndringer Direktiv med f retagna ndringar Direktiver med foretatte endringer Direktiivej sellaisina kuin ne ovat muutettuina v platn m zn n Smjernice kako je i...

Page 5: ...vastaava kyll stysl mp tila M C Kylm aine N Varmuuspainelaitteen asetus P bar Valmistusnumero ja valmistusvuosi katso mallin nimikilpi Maxim ln p pustn tlak PS K bar Minim ln maxim ln p pustn teplota...

Page 6: ...ioners Indoor unit outdoor unit 21 8 2 11 Symptom Noise of air conditioners Outdoor unit 21 8 2 12 Symptom Dust comes out of the unit 21 8 2 13 Symptom The units can give off odours 21 8 2 14 Symptom...

Page 7: ...rope 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...

Page 8: ...nce with the instructions from this manual See 15 Electrical installation 431 WARNING ALWAYS use multicore cable for power supply cables WARNING If the power supply has a missing or wrong N phase equi...

Page 9: ...se potential sources of ignition in searching for or detection of refrigerant leaks NOTICE Do NOT re use joints which have been used already Joints made in installation between parts of refrigerant sy...

Page 10: ...ecautions it is mandatory to install one of the following devices at a location with 24 hour monitoring a supervisor remote controller or an iTM with external alarm via WAGO module Note The remote con...

Page 11: ...or room 2 1 3 To determine the charge limitations 1 Determine the area of the smallest room in order to derive the total refrigerant charge limit in the system The room area can be determined by proje...

Page 12: ...for room with the smallest area on the lowest underground floor The maximum allowable charge has to be assessed for the room with the smallest room area in both the lowest underground floor and the o...

Page 13: ...h c to check the maximum allowed charge for a room of 16 m with a ceiling mounted unit 10 4 kg Use graph d to check the maximum allowed charge for the smallest room 28 m of the lowest underground floo...

Page 14: ...must be done by an authorized installer and must comply with applicable legislation Units must be treated at a specialized treatment facility for reuse recycling and recovery By ensuring this product...

Page 15: ...4 About the system The VRV 5 S uses R32 refrigerant which is rated as A2L and is mildly flammable For compliance with the requirements for enhanced tightness refrigerating systems and IEC60335 2 40 th...

Page 16: ...may stop immediately This is not a malfunction 6 2 3 About the heating operation It may take longer to reach the set temperature for general heating operation than for cooling operation The following...

Page 17: ...g NOTICE Do not turn off power immediately after the unit stops but wait for at least 5 minutes 6 3 3 To use the dry program WITH cool heat changeover remote control switch To start 1 Select cooling o...

Page 18: ...e displays of other user interfaces show change over under centralised control 7 Maintenance and service NOTICE Never inspect or service the unit by yourself Ask a qualified service person to perform...

Page 19: ...leshooting If one of the following malfunctions occur take the measures shown below and contact your dealer WARNING Stop operation and shut off the power if anything unusual occurs burning smells etc...

Page 20: ...r malfunction Discharge temperature sensor malfunction outdoor Suction temperature sensor malfunction outdoor De icing temperature sensor malfunction outdoor Liquid temperature sensor after subcool HE...

Page 21: ...tween the units causing them to stop Operation automatically restarts when the noise ceases 8 2 9 Symptom Noise of air conditioners Indoor unit A zeen sound is heard immediately after the power supply...

Page 22: ...ecycling and recovery For the installer 11 About the box 11 1 Outdoor unit 11 1 1 To unpack the outdoor unit 2 1 11 1 2 To handle the outdoor unit CAUTION To avoid injury do NOT touch the air inlet or...

Page 23: ...sound pressure level is less than 70 dBA CAUTION Appliance NOT accessible to the general public install it in a secured area protected from easy access This unit is suitable for installation in a comm...

Page 24: ...l the outdoor unit 4 M12 12 3 3 To provide drainage INFORMATION If necessary you can use a drain pan field supply to prevent drain water from dripping NOTICE If the unit CANNOT be installed fully leve...

Page 25: ...the piping size Determine the proper size using the following tables and reference figure only for indication A B 1 B 2 C 1 C 2 C 3 C 4 1 3 1 3 2 3 3 3 4 VRV DX 2 2 2 1 Outdoor unit 2 Refrigerant bra...

Page 26: ...ollowing table in accordance with the total capacity of all the indoor units connected below the refnet header Indoor unit capacity index Refrigerant branch kit 182 KHRQ22M29H INFORMATION Maximum 8 br...

Page 27: ...sing electrical wiring through the knockout holes wrap the wiring with protective tape to prevent damage 3 Do the following Connect the accessory liquid pipe a to the liquid stop valve brazing Connect...

Page 28: ...test solution from your wholesaler Do not use soap water which may cause cracking of flare nuts soap water may contain salt which absorbs moisture that will freeze when the piping gets cold and or le...

Page 29: ...re shall be taken not to overfill the refrigerating system NOTICE Prior to charging the system it shall be pressure tested with the appropriate purging gas The system shall be leak tested on completio...

Page 30: ...s 437 Result The unit will start operation INFORMATION The manual refrigerant charge operation will automatically stop within 30 minutes If charging is not completed after 30 minutes perform the addit...

Page 31: ...iring regulations WARNING ALWAYS use multicore cable for power supply cables 15 1 About electrical compliance Equipment complying with EN IEC 61000 3 12 provided that the short circuit power Ssc is gr...

Page 32: ...th leakage circuit breaker b Fuse c Power supply cable 4 Fix the cables power supply and interconnection cable with a cable tie to the stop valve attachment plate and route the wiring according to the...

Page 33: ...to SVS output device Specifications of the SVS output Maximum voltage 40 VDC Maximum current 0 025 A Polarity of terminal 1 Polarity of terminal 2 It is mandatory to use a surge killer to protect the...

Page 34: ...ed above the indoor unit cover the stop valves f see above with sealing material to prevent condensed water on the stop valves from moving to the indoor unit NOTICE Any exposed piping might cause cond...

Page 35: ...e also 17 1 4 To access mode 1 or 2 436 17 1 5 To use mode 1 436 17 1 6 To use mode 2 436 17 1 7 Mode 1 Monitoring settings 436 17 1 8 Mode 2 Field settings 437 17 1 2 To access the field setting comp...

Page 36: ...atus of the unit What How Changing and accessing the setting in mode 1 Once mode 1 is selected push BS1 one time you can select the wanted setting It is done by pushing BS2 Accessing the selected sett...

Page 37: ...remote controller connected to the system 1 Supervisor remote controller connected to system 18 Commissioning NOTICE General commissioning checklist Next to the commissioning instructions in this cha...

Page 38: ...ctions for equipment using R32 refrigerant 49 Field settings Make sure all field settings you want are set See 17 1 Making field settings 434 Installation date and field setting Be sure to keep a reco...

Page 39: ...display and on the user interface of the indoor unit 19 1 1 Error codes Overview In case other error codes appear contact your dealer Main code Cause Solution SVEO a SVS b The R32 sensor in one of the...

Page 40: ...ly voltage Check if power supply is within range Insufficient supply voltage Check if the supply voltage is supplied properly Malfunction code System test run not yet executed system operation not pos...

Page 41: ...0 11 and audible alarm and red warning signal is generated from this remote controller The unit number is displayed on this remote controller k Error code U9 02 is displayed on this remote controller...

Page 42: ...s walls baffle plates E Obstacle roof a b c d e Minimum service space between the unit and obstacles A B C D and E eB Maximum distance between the unit and the edge of obstacle E in the direction of o...

Page 43: ...rheat g One way valve R7T Thermistor heat exchanger h Pressure relief valve R10T Thermistor fin i PCB cooling R21T Thermistor discharge j Double tube heat exchanger k Distributor Refrigerant flow l He...

Page 44: ...PTC thermistor S1NPH High pressure sensor S1NPL Low pressure sensor S1PH High pressure switch S1S Air control switch option S2S Cool heat selector switch option SEG A1P 7 segment display SFB Mechanic...

Page 45: ...itch option SEG A1P 7 segment display SFB Mechanical ventilation error input field supply V D Diode module V1R V2R A1P IGBT power module V3R A1P Diode module X A PCB connector X M Terminal strip X Y C...

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Page 48: ...4P600329 1A 2020 01 Copyright 2020 Daikin 4P600329 1 A 0000000X Verantwortung f r Energie und Umwelt...

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