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6 Operation

Installation and operation manual

10

RWEYQ8~14T9Y1B

VRV IV water-cooled system air conditioner

4P452190-1D – 2020.10

Cooling operation

Heating operation

Fan only operation

2

Press the ON/OFF button on the user interface.

Result: 

The  operation  lamp  lights  up  and  the  system  starts

operating.

6.2.5

To operate the system (WITH cool/heat
changeover remote control switch)

Overview of the changeover remote control switch

a

b

a

FAN ONLY/AIR CONDITIONING
SELECTOR SWITCH

Set the switch to 

 for fan only

operation or to 

 for heating or

cooling operation.

b

COOL/HEAT CHANGEOVER SWITCH

Set the switch to 

 for cooling or to 

for heating

Note: 

In case a cool/heat changeover remote control switch is used,

the  position  of  DIP  switch  1  (DS1-1)  on  the  main  PCB  needs  to  be
switched to the ON position.

To start

1

Select operation mode with the cool/heat changeover switch as
follows:

Cooling operation

 

1

1

Heating operation

 

1

1

Fan only operation

1

2

Press the ON/OFF button on the user interface.

Result: 

The  operation  lamp  lights  up  and  the  system  starts

operating.

To stop

3

Press the ON/OFF button on the user interface once again.

Result: 

The  operation  lamp  goes  out  and  the  system  stops

operating.

NOTICE

Do not turn off power immediately after the unit stops, but
wait for at least 5 minutes.

To adjust

For programming temperature, fan speed and air flow direction refer
to the operation manual of the user interface.

6.3

Using the dry program

6.3.1

About the dry program

▪ The  function  of  this  program  is  to  decrease  the  humidity  in  your

room with minimal temperature decrease (minimal room cooling).

▪ The  micro  computer  automatically  determines  temperature  and

fan speed (cannot be set by the user interface).

▪ The system does not go into operation if the room temperature is

low (<20°C).

6.3.2

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 select 

 (program dry operation).

2

Press the ON/OFF button of the user interface.

Result: 

The  operation  lamp  lights  up  and  the  system  starts

operating.

3

Press  the  air  flow  direction  adjust  button  (only  for  double-flow,
multi-flow,  corner,  ceiling-suspended  and  wall-mounted).  Refer
to 

"6.4 Adjusting the air flow direction"

 [

4

 11] for details.

To stop

4

Press the ON/OFF button on the user interface once again.

Result: 

The  operation  lamp  goes  out  and  the  system  stops

operating.

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  operation  mode  with  the  cool/heat  changeover
remote control switch.

1

1

2

Press the operation mode selector button on the user interface
several times and select 

 (program dry operation).

3

Press the ON/OFF button of the user interface.

Result: 

The  operation  lamp  lights  up  and  the  system  starts

operating.

4

Press  the  air  flow  direction  adjust  button  (only  for  double-flow,
multi-flow,  corner,  ceiling-suspended  and  wall-mounted).  Refer
to 

"6.4 Adjusting the air flow direction"

 [

4

 11] for details.

To stop

5

Press the ON/OFF button on the user interface once again.

Result: 

The  operation  lamp  goes  out  and  the  system  stops

operating.

Содержание VRV IV RWEYQ-T9

Страница 1: ...lation and operation manual VRV IV water cooled system air conditioner English Installation and operation manual VRV IV water cooled system air conditioner RWEYQ8T9Y1B RWEYQ10T9Y1B RWEYQ12T9Y1B RWEYQ1...

Страница 2: ...8 19 20 21 22 23 24 25 Directivelor cu amendamentele respective Direktive z vsemi spremembami Direktiivid koos muudatustega Direktyvose su papildymais Direkt v s un to papildin jumos Smernice v platno...

Страница 3: ...S 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 teplot...

Страница 4: ...s not spin 13 8 2 15 Symptom The display shows 88 13 8 2 16 Symptom The compressor in the outdoor unit does not stop after a short heating operation 13 8 2 17 Symptom The inside of an outdoor unit is...

Страница 5: ...r reference guide Preparation of the installation reference data Detailed step by step instructions and background information for basic and advanced usage Format Digital files on http www daikineurop...

Страница 6: ...carrying wires are tautened before the earth wire is in case the power supply is pulled loose from the stress relief CAUTION Do NOT perform the test operation while working on the indoor units When pe...

Страница 7: ...ation CAUTION NEVER touch the internal parts of the controller Do NOT remove the front panel Some parts inside are dangerous to touch and appliance problems may happen For checking and adjusting the i...

Страница 8: ...ices ventilate the room and contact the dealer where you purchased the unit Do not use the system until a service person confirms that the portion where the refrigerant leaks is repaired 4 About the s...

Страница 9: ...ch 6 hours before operation 6 2 2 About cooling heating fan only and automatic operation Changeover cannot be made with a user interface whose display shows change over under centralised control refer...

Страница 10: ...humidity in your room with minimal temperature decrease minimal room cooling The micro computer automatically determines temperature and fan speed cannot be set by the user interface The system does...

Страница 11: ...ing for damage If damaged the unit may fall and result in injury NOTICE Do NOT wipe the controller operation panel with benzine thinner chemical dust cloth etc The panel may get discoloured or the coa...

Страница 12: ...unit manual Malfunction Measure The system operates but cooling or heating is insufficient Check if air inlet or outlet of outdoor or indoor unit is not blocked by obstacles Remove any obstacles and m...

Страница 13: ...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 is turned on The electronic ex...

Страница 14: ...b Installation manual and operation manual c Additional refrigerant charge label d Installation information sticker e Fluorinated greenhouse gases label f Multilingual fluorinated greenhouse gases la...

Страница 15: ...ratures from 21 C DB to 32 C DB or 14 C WB to 25 C WB The ambient temperature around the unit should be above 0 C DB and below 40 C DB Relative humidity around the unit should be below 80 The water te...

Страница 16: ...l the water piping and field wiring front plate B has to be removed 13 2 2 To open the electrical component box of the outdoor unit NOTICE Do NOT apply excessive force when opening the electronic comp...

Страница 17: ...ery Determine the proper size using the following tables and reference figure only for indication In case of heat pump system A B B B C D F G E x y b a 3 1 2 4 5 1 2 VRV DX indoor unit 3 Branch select...

Страница 18: ...ed on the total capacity of the connected indoor units only in case RA DX indoor units are connected Total capacity index of connected indoor units Piping outer diameter size mm Gas pipe Liquid pipe 2...

Страница 19: ...ll the following restriction conditions A B C a c b A B C a To indoor units b Outdoor unit multi connecting piping kit first branch c Outdoor unit multi connecting piping kit second branch 14 2 Prepar...

Страница 20: ...on the piping between this shut off valve and the outdoor unit for cleaning by chemicals For cleaning and water draining of the outdoor unit long period of non use or during non use in winter install...

Страница 21: ...the design flow rate calculated by the hydronic engineer when designing the building system Correct valve selection is done when following conditions are met B C AND E A D For further selection requir...

Страница 22: ...ay enter the machine 14 3 6 Using the stop valve and service port To handle the stop valve Take the following guidelines into account Make sure to keep the appropriate stop valves open during operatio...

Страница 23: ...nect the vacuuming recovery unit through a manifold to the service port of all stop valves p p R410A N2 b c e a f g h d A C 1 D B a Pressure reducing valve b Nitrogen c Weighing scales d Refrigerant R...

Страница 24: ...ant piping for example water may have entered the piping first carry out the vacuum drying procedure below until all moisture has been removed All piping inside the unit has been factory tested for le...

Страница 25: ...for 1 hour the system may contain too much moisture In that case break the vacuum by pressurising with nitrogen gas to a gauge pressure of 0 05 MPa 0 5 bar and repeat steps 1 to 3 until all moisture h...

Страница 26: ...additional 0 5 kg of refrigerant per outdoor unit In case of heat recovery system Formula R X1 22 2 0 37 X2 19 1 0 26 X3 15 9 0 18 X4 12 7 0 12 X5 9 5 0 059 X6 6 4 0 022 1 04 A C R Additional refriger...

Страница 27: ...ks to each outdoor unit NOTICE The refrigerant charging port is connected to the piping inside the unit The unit s internal piping is already factory charged with refrigerant so be careful when connec...

Страница 28: ...flow rate is correct If not stop the pump immediately and carry out troubleshooting 14 6 4 To insulate the water piping The outdoor water piping MUST be insulated to prevent condensation during heatin...

Страница 29: ...g In case of heat recovery system B i a b f c f e g d c h j j i a Field power supply with earth leakage protector b Main switch c Earth connection d Outdoor unit e Indoor unit f User interface g BS un...

Страница 30: ...es using finishing tape as shown in figure below b a f c d f e f a Liquid pipe b Gas pipe c Finishing tape d High pressure low pressure gas pipe e Transmission wiring F1 F2 f Insulator 15 6 To route a...

Страница 31: ...e closed valve Select a flow switch contact of at least 15 V DC 1 mA Connect the flow switch to X2M terminals 5 and 6 In case of a multi outdoor unit system install one or more flow switches depending...

Страница 32: ...ng the current field setting value is possible In general normal operation can be resumed without special intervention after changing field settings Some field settings are used for special operation...

Страница 33: ...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...

Страница 34: ...m 3 Each unit has a pump valve pump is OFF when slave unit does not operate Minimum water flow rate limit control To change the minimum water flow rate limit of the variable flow system change the set...

Страница 35: ...tion 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 wiring has been carried out according to the instru...

Страница 36: ...s 17 4 To perform a test run 1 Close all front panels in order to not let it be the cause of misjudgement except the electrical component box inspection opening service cover 2 Make sure all field set...

Страница 37: ...site publicly accessible The full set of latest technical data is available on the Daikin Business Portal authentication required 19 1 Service space Outdoor unit Make sure the space around the unit is...

Страница 38: ...pressor Double tube heat exchanger Liquid receiver Thermistor 20 Disposal NOTICE Do NOT try to dismantle the system yourself dismantling of the system treatment of the refrigerant oil and other parts...

Страница 39: ......

Страница 40: ...4P452190 1D 2020 10 Copyright 2017 Daikin 4P452190 1 D 0000000 Verantwortung f r Energie und Umwelt...

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