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5 Preparation

Installer and user reference guide

9

RXYSCQ4~6TMV1B
VRV IV-S system air conditioner
4P404224-1C – 2019.07

The  VRV  IV-S  heat  pump  system  can  be  combined  with  several
types of indoor units and is intended for R410A use only.

For  an  overview  which  units  are  available  you  can  consult  the
product catalogue for VRV IV-S.

An  overview  is  given  indicating  the  allowed  combinations  of  indoor
units and outdoor units. Not all combinations are allowed. They are
subject to rules (combination between outdoor-indoor, combinations
between  indoor  units,  etc.)  mentioned  in  the  technical  engineering
data.

4.5.2

Possible combinations of indoor units

In general following type of indoor units can be connected to a VRV
IV-S heat pump system. The list is non-exhaustive and is depending
on both outdoor unit model and indoor unit model combinations.

▪ VRV direct expansion (DX) indoor units (air to air applications).

▪ SA/RA (Sky Air/Residential Air) direct expansion (DX) indoor units

(air to air applications). Further referred to as RA DX indoor units.
These indoor units require a BP box.

▪ AHU  (air  to  air  applications):  EKEXV-kit+EKEQ-box  are  required,

depending on application.

▪ Aircurtain  (air  to  air  applications):  CYV/CAV  (Biddle)  series,

depending on application.

INFORMATION

▪ Combination of VRV DX and RA DX indoor units is not

allowed.

▪ Combination  of  RA  DX  and  AHU  indoor  units  is  not

allowed.

▪ Combination of RA DX and aircurtain indoor units is not

allowed.

4.5.3

Possible options for the outdoor unit

INFORMATION

Refer to the technical engineering data for the latest option
names.

Refrigerant branching kit

Description

Model name

Refnet header

KHRQ22M29H

Refnet joint

KHRQ22M20T

For  the  selection  of  the  optimal  branching  kit,  please  refer  to

"5.3.4 To select refrigerant branch kits" on page 13

.

External control adaptor (DTA104A61/62)

To  instruct  specific  operation  with  an  external  input  coming  from  a
central control the external control adaptor can be used. Instructions
(group  or  individual)  can  be  instructed  for  low  noise  operation  and
power consumption limitation operation.

The external control adapter has to be installed in the indoor unit.

PC configurator cable (EKPCCAB)

You  can  make  several  commissioning  field  settings  through  a
personal  computer  interface.  For  this  option  EKPCCAB  is  required
which  is  a  dedicated  cable  to  communicate  with  the  outdoor  unit.
The 

user 

interface 

software 

is 

available 

on 

http://

www.daikineurope.com/support-and-manuals/software-downloads/

.

5

Preparation

5.1

Overview: Preparation

This chapter describes what you have to do and know before going
on-site.

It contains information about:

▪ Preparing the installation site

▪ Preparing the refrigerant piping

▪ Preparing the electrical wiring

5.2

Preparing the installation site

Do NOT install the unit in places often used as work place. In case
of  construction  works  (e.g.  grinding  works)  where  a  lot  of  dust  is
created, the unit MUST be covered.

Choose an installation location with sufficient space for carrying the
unit in and out of the site.

5.2.1

Installation site requirements of the
outdoor unit

INFORMATION

Also read the following requirements:

▪ General  installation  site  requirements.  See  the

"General safety precautions" chapter.

▪ Service  space  requirements.  See  the  "Technical  data"

chapter.

▪ Refrigerant 

piping 

requirements 

(length, 

height

difference). See further in this "Preparation" chapter.

CAUTION

Appliance 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 

commercial 

and 

light 

industrial

environment.

NOTICE

The  equipment  described  in  this  manual  may  cause
electronic  noise  generated  from  radio-frequency  energy.
The  equipment  complies  to  specifications  that  are
designed  to  provide  reasonable  protection  against  such
interference.  However,  there  is  no  guarantee  that
interference will not occur in a particular installation.

It  is  therefore  recommended  to  install  the  equipment  and
electric  wires  keeping  proper  distances  away  from  stereo
equipment, personal computers, etc.

b

b

a

a

c

d

f e

(mm)

≥1500

≥1500

≥1500

≥1000

≥1000

≥1000

≥1000

≥1000

≥1000

e

a

Personal computer or radio

b

Fuse

c

Earth leakage protector

d

User interface

e

Indoor unit

f

Outdoor unit

Summary of Contents for RXYSCQ6TMV1B

Page 1: ...Installer and user reference guide VRV IV S system air conditioner English Installer and user reference guide VRV IV S system air conditioner RXYSCQ4TMV1B RXYSCQ5TMV1B RXYSCQ6TMV1B...

Page 2: ...5 To flare the pipe end 17 6 4 6 To braze the pipe end 18 6 4 7 Using the stop valve and service port 18 6 4 8 To connect the refrigerant piping to the outdoor unit 19 6 4 9 To connect the refrigerant...

Page 3: ...om The fan speed does not correspond to the setting 50 20 2 4 Symptom The fan direction does not correspond to the setting 50 20 2 5 Symptom White mist comes out of a unit Indoor unit 50 20 2 6 Sympto...

Page 4: ...symbols are Pb lead 0 004 Waste batteries must be treated at a specialized treatment facility for reuse By ensuring waste batteries are disposed of correctly you will help to prevent potential negativ...

Page 5: ...consequence Self combustion and explosion of the compressor because of air going into the operating compressor Use a separate recovery system so that the unit s compressor does NOT have to operate WA...

Page 6: ...arth 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 n...

Page 7: ...ngineering 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 Business Portal a...

Page 8: ...mpact S series Q Refrigerant R410A 4 6 Capacity class TM VRV IV series V1 Power supply B European market Minor model change indication 4 3 About the outdoor unit This installation manual concerns the...

Page 9: ...tion and power consumption limitation operation The external control adapter has to be installed in the indoor unit PC configurator cable EKPCCAB You can make several commissioning field settings thro...

Page 10: ...vessels Where acidic or alkaline vapour is present Seaside installation Make sure the outdoor unit is NOT directly exposed to sea winds This is to prevent corrosion caused by high levels of salt in t...

Page 11: ...of the refrigerant gas in 1 m3 volume of the occupied space Compliance to the local applicable regulations and standards for the maximum allowable concentration level is required According to the appr...

Page 12: ...3 4 Half hard 1 2H 0 80 mm a Depending on the applicable legislation and the unit s maximum working pressure see PS High on the unit name plate larger piping thickness might be required 5 3 3 To selec...

Page 13: ...on page 12 Refnet joint at first branch counting from outdoor unit When using refnet joints at the first branch counted from the outdoor unit side choose from the following table in accordance with t...

Page 14: ...Limit 30 m 30 m Outdoor lower than indoor Maximum height difference indoor indoor Examples H2 Limit 15 m 15 m Maximum height difference outdoor BP Example 2 H3 Limit N A 30 m Maximum height differenc...

Page 15: ...units Connecting the refrigerant piping Checking the refrigerant piping Charging refrigerant Connecting the electrical wiring Finishing the outdoor installation Finishing the indoor installation INFO...

Page 16: ...he unit to provide a free space of more than 150 mm under the outdoor unit 150 mm Drain holes dimensions in mm 52 102 118 59 62 216 130 20 98 21 89 32 a a Drain holes 6 3 6 To prevent the outdoor unit...

Page 17: ...g guidelines into account when connecting pipes Coat the flare inner surface with ether oil or ester oil when connecting a flare nut Tighten 3 or 4 turns by hand before tightening firmly ALWAYS use 2...

Page 18: ...e corrosion or in particular if the flux contains fluorine it will deteriorate the refrigerant oil Always protect the surrounding surfaces e g insulation foam from heat when brazing 6 4 7 Using the st...

Page 19: ...flat head screwdriver and a hammer Optionally cut out the slits b with a metal saw NOTICE Precautions when making knockout holes Avoid damaging the casing and underlying piping After making the knock...

Page 20: ...l the outdoor unit has finished the initialisation Leak test and vacuum drying Checking the refrigerant piping involves Checking for any leakages in the refrigerant piping Performing vacuum drying to...

Page 21: ...ant charge port or first pre charge a portion of refrigerant through the liquid line either open the outdoor unit stop valves or keep them closed See 6 7 4 To charge refrigerant on page 22 for more in...

Page 22: ...ht factor Piping Weight factor 6 4 mm 0 022 6 mm 0 018 9 5 mm 0 059 10 mm 0 065 Connection ratio requirements When selecting indoor units the connection ratio must comply with the following requiremen...

Page 23: ...g with the stop valves closed will damage the compressor NOTICE After adding the refrigerant do not forget to close the lid of the refrigerant charging port The tightening torque for the lid is 11 5 t...

Page 24: ...error No branching is allowed after branching A B C b2 b3 c1 c2 b1 a A Outdoor unit B Indoor unit C Central user interface etc a Main line b1 b2 b3 Branch lines c1 c2 No branch is allowed after branc...

Page 25: ...knockout holes wrap the wiring with protective tape to prevent damage b c a a Knockout hole b Burr c Sealant etc 6 8 4 Guidelines when connecting the electrical wiring Keep the following in mind If st...

Page 26: ...n sleeve for the conduits PG insertions can be inserted at the knockout hole When you do not use a wire conduit protect the wires with vinyl tubes to prevent the edge of the knockout hole from cutting...

Page 27: ...l Mode 2 field settings Mode 2 is used to change the field settings of the system Consulting the current field setting value and changing the current field setting value is possible In general normal...

Page 28: ...least 5 s INFORMATION If you get confused in the middle of the process press BS1 to return to the default situation 7 2 5 To use mode 1 In mode 1 and in default situation you can read out some informa...

Page 29: ...consumption limitation of the outdoor unit system The first method is to enable a forced power consumption limitation by field setting The unit will always operate at the selected power consumption li...

Page 30: ...ion was not aborted by pushing BS3 the unit will stop its operation after 30 minutes If 30 minutes was not sufficient to add the needed refrigerant amount the function can be reactivated by changing t...

Page 31: ...an external signal is sent to the unit this setting defines the level power consumption limitation that will be applied for step 2 The level is according to the table 30 default 40 50 2 32 Forced all...

Page 32: ...temperatures e g 15 C as under low outdoor ambient temperatures e g 5 C Using this idea the system automatically starts decreasing its refrigerant temperature automatically reducing the delivered capa...

Page 33: ...In case of cooling operation the evaporating temperature is allowed to go down to 6 C on temporary base depending on the situation In case of heating operation the condense temperature is allowed to...

Page 34: ...working on the indoor units When performing the test operation NOT only the outdoor unit but the connected indoor unit will operate as well Working on an indoor unit while performing a test operation...

Page 35: ...ttached to the rear side of the front cover Installation date and field setting Be sure to keep a record of the installation date on the sticker on the rear of the front panel according to EN60335 2 4...

Page 36: ...ant charge in kg 1000 10 1 Overview Maintenance and service This chapter contains information about Preventing electrical hazards when maintaining and servicing the system The refrigerant recovery ope...

Page 37: ...oose connections or defective wiring 11 2 Precautions when troubleshooting WARNING When carrying out an inspection on the switch box of the unit ALWAYS make sure that the unit is disconnected from the...

Page 38: ...unction S1NPL open circuit short circuit A1P X18A Check connection on PCB or actuator Transmission outdoor unit inverter INV1 FAN1 transmission trouble Check connection INV1 unbalanced power supply vo...

Page 39: ...00 500 B D E 1 2 1 HB HD HB HU 250 750 1000 500 HU HB HU 250 1000 1000 500 HB HU HB HD HD HU 100 1000 1000 500 HU HD HU 200 1000 1000 500 HD HU A B C 250 300 1000 A B C E 250 300 1000 1000 500 D 1000...

Page 40: ...A2 A1 If there is danger of drainage dripping and freezing between the upper and lower units A2 Then install a roof between the upper and lower units Install the upper unit high enough above the lowe...

Page 41: ...er h Service port high pressure i Muffler j Check valve k Compressor accumulator l Capillary tube m Service port refrigerant charge n Accumulator M1C Compressor M1F Fan motor R1T Thermistor air R2T Th...

Page 42: ...d main A2P Printed circuit board BS1 BS5 Push button switch C1 Capacitor DS1 DIP switch E1HC Crankcase heater F1U Fuse F3U F4U Fuse T 6 3 A 250 V F6U Fuse T 5 0 A 250 V H1P H8P Light emitting diode se...

Page 43: ...y Air SA direct expansion DX indoor units f Residential Air RA direct expansion DX indoor units g User interface wireless dedicated depending on indoor unit type 15 User interface CAUTION NEVER touch...

Page 44: ...st operation the heating capacity on the indoor unit side will temporarily drop until defrosting is completed After defrosting the unit will regain its full heating capacity The indoor unit will stop...

Page 45: ...er interface dedicated depending on indoor unit type e BP box required to connect Residential Air RA or Sky Air SA direct expansion DX indoor units f Residential Air RA direct expansion DX indoor unit...

Page 46: ...equipped with advanced energy saving functionality Depending on the priority emphasises can be put on energy saving or comfort level Several parameters can be selected resulting in the optimal balanc...

Page 47: ...it is indicated both in weight and CO2 equivalent Formula to calculate the quantity in CO2 equivalent tonnes GWP value of the refrigerant total refrigerant charge in kg 1000 Please contact your instal...

Page 48: ...le indicates main components Refer to your maintenance and inspection contract for more details The table indicates recommended intervals of replacement cycles However in order to keep the unit operat...

Page 49: ...or Movement detector or floor temperature sensor malfunction indoor User interface thermistor malfunction indoor PCB malfunction outdoor High pressure switch was activated Low pressure malfunction out...

Page 50: ...arts after a few minutes This is because the user interface is intercepting noise from electric appliances other than the air conditioner The noise prevents communication between the units causing the...

Page 51: ...n the selection is done the LOT 21 datasheet can be viewed as a PDF or a HTML webpage INFORMATION Other documents e g manuals can also be consulted from the resulting webpage 24 Glossary Dealer Sales...

Page 52: ...4P404224 1C 2019 07 Copyright 2015 Daikin...

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