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7 Configuration

Installer and user reference guide

32

RXYSCQ4~6TMV1B

VRV IV-S system air conditioner

4P404224-1C – 2019.07

7.2.9

To connect the PC configurator to the
outdoor unit

X41A

2

3

4

5

H J

ST

a

b

c (X41A)

A1P

a

PC

b

Cable (EKPCCAB)

c (X41A)

Extension cable connected to X41A

A1P

Outdoor unit main PCB

7.3

Energy saving and optimum
operation

This  heat  pump  system  is  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  balance  between  energy  consumption  and
comfort for the particular application.

Several  patterns  are  available  and  explained  below.  Modify  the
parameters  to  the  needs  of  your  building  and  to  realize  the  best
balance between energy consumption and comfort.

No  matter  which  control  is  selected,  variations  on  the  behaviour  of
the  system  are  still  possible  due  to  protection  controls  to  keep  the
unit  operating  under  reliable  conditions.  The  intentional  target,
however,  is  fixed  and  will  be  used  to  obtain  the  best  balance
between  energy  consumption  and  comfort,  depending  on  the
application type.

7.3.1

Available main operation methods

Basic

The refrigerant temperature is fixed independent from the situation. It
corresponds  to  the  standard  operation  which  is  known  and  can  be
expected from/under previous VRV systems.

To activate this in…

Change…

Cooling operation

[2‑8]=2

Heating operation

[2‑9]=2

Automatic

The refrigerant temperature is set depending on the outdoor ambient
conditions.  As  such  adjusting  the  refrigerant  temperature  to  match
the  required  load  (which  is  also  related  to  the  outdoor  ambient
conditions).

E.g., when your system is operating in cooling, you do not need as
much  cooling  under  low  outdoor  ambient  temperatures  (e.g.,  25°C)
as under high outdoor ambient temperatures (e.g., 35°C). Using this
idea,  the  system  automatically  starts  increasing  its  refrigerant
temperature,  automatically  reducing  the  delivered  capacity  and
increasing the system's efficiency.

E.g., when your system is operating in heating, you do not need as
much heating under high outdoor ambient 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  capacity  and
increasing the system's efficiency.

To activate this in…

Change…

Cooling operation

[2‑8]=3 (default)

Heating operation

[2‑9]=1 (default)

Hi-sensible/economic (cooling/heating)

The  refrigerant  temperature  is  set  higher/lower  (cooling/heating)
compared to basic operation. The focus under high sensible mode is
comfort feeling for the customer.

The  selection  method  of  indoor  units  is  important  and  has  to  be
considered as the available capacity is not the same as under basic
operation.

For  details  concerning  to  Hi-sensible  applications,  please  contact
your dealer.

To activate this in…

Change…

Cooling operation

[2‑8] to the appropriate value,
matching the requirements of the
pre-designed system containing
a high sensible solution.

Heating operation

[2‑9] to the appropriate value,
matching the requirements of the
pre-designed system containing
a high sensible solution.

[2‑8]

T

e

 target (°C)

4

8

5

9

6

10

7

11

[2‑9]

T

c

 target (°C)

4

43

7.3.2

Available comfort settings

For  each  of  above  modes  a  comfort  level  can  be  selected.  The
comfort  level  is  related  to  the  timing  and  the  effort  (energy
consumption)  which  is  put  in  achieving  a  certain  room  temperature
by  temporarily  changing  the  refrigerant  temperature  to  different
values in order to achieve requested conditions more quickly.

Powerful

Overshoot  (during  heating  operation)  or  undershoot  (during  cooling
operation)  is  allowed  compared  to  the  requested  refrigerant
temperature, in order to achieve the required room temperature very
fast. The overshoot is allowed from the start up moment.

▪ In  case  of  cooling  operation  the  evaporating  temperature  is

allowed  to  go  down  to  3°C  on  temporary  base  depending  on  the
situation.

▪ In case of heating operation the condense temperature is allowed

to go up to 49°C on temporary base depending on the situation.

▪ When the request from the indoor units becomes more moderate,

the system will eventually go to the steady state condition which is
defined by the operation method above.

To activate this in…

Change…

Cooling operation

[2‑41]=3.

This setting is used in
conjunction with setting [2‑8].

Heating operation

[2‑42]=3.

This setting is used in
conjunction with setting [2‑9]

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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