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Installation and operation manual

20

125A8V1BF

VRV IV System indoor unit

4P405267-1C – 2021.04

Refer  to 

"[5] Automatic  setback"  on  page 20

  for  temperature  set

points.

[3] Weather dependent set point (Heating)

When  weather  dependent  operation  is  active,  the  leaving  water

temperature  is  determined  automatically  depending  on  the  outdoor

temperature: colder outdoor temperatures will result in warmer water

and  vice  versa.  The  unit  has  a  floating  set  point.  Activating  this

operation  will  result  in a lower  power  consumption than  use  with  a

manually fixed leaving water set point.
During weather dependent operation, the user has the possibility to

shift up or down the target water temperature by a maximum of 5°C.

This  "Shift value"  is  the  temperature  difference  between  the

temperature  set  point  calculated  by  the  controller  and  the  real  set

point. E.g. a positive shift value means that the real temperature set

point will be higher than the calculated set point.
It  is  advised  to  use  the  weather  dependent  set  point  because  it

adjusts the water temperature to the actual needs for space heating.

It will prevent the unit from switching too much between thermo ON

operation and thermo OFF operation when using the user interface

room thermostat or external room thermostat.

[3

-

00]

  Low  ambient  temperature  (Lo_A):  low  outdoor

temperature.

[3

-

01]

  High  ambient  temperature  (Hi_A):  high  outdoor

temperature.

[3

-

02]

 Set point at low ambient temperature (Lo_Ti): the target

outgoing  water  temperature  when  the  outdoor  temperature

equals or drops below the low ambient temperature (Lo_A).

Note  that  the  Lo_Ti  value  should  be  higher  than Hi_Ti,  as  for

colder  outdoor  temperatures  (i.e.  Lo_A)  warmer  water  is

required.

[3

-

03]

 Set point at high ambient temperature (Hi_Ti): the target

outgoing  water  temperature  when  the  outdoor  temperature

equals or rises above the high ambient temperature (Hi_A).

Note  that  the  Hi_Ti  value  should  be  lower  than  Lo_Ti,  as  for

warmer  outdoor  temperatures  (i.e.  Hi_A)  less  warm  water

suffices.

[4] Settings are not applicable
[5] Automatic setback

[5

-

00]

 Setting is not applicable.

[5

-

01]

 Setting is not applicable.

[5

-

02]

 Leaving water setback temperature.

[5

-

03]

 Room setback temperature.

[5

-

04]

 Setting is not applicable.

[6] Option setup

[6

-

01]

 External room thermostat.

If the optional external room thermostat is installed, its operation

must be enabled by field setting. Default [6

-

01]=0, which means

no external room thermostat is installed.

Set  [6

-

01]=2  if  the  optional  external  room  thermostat  is

installed.  The  external  room  thermostat  only  gives  an

ON/OFF  signal  to  the  heat  pump  based  on  the  room

temperature. 

Set  [6-01]=1  in  case  a  heating  thermostat  ON  or  cooling

thermostat  ON  function  is  required  (when  using  optional

EKRTWA or EKRT1). The processing of thermostat ON will

depend  on the system’s  operation mode.  Room  thermostat

input  1  =  heating  input,  room  thermostat  input  2  =  cooling

input.

Because the external room thermostat does not give continuous

feedback  information  to  the  heat  pump,  it  is  supplementary  to

the  user  interface  room  thermostat  function.  To  have  a  good

control  of  the  system  and  avoiding  frequent  ON/OFF  it  is

advised  to  use  the  automatic  weather  dependent  set  point

operation.

Room thermostat input 1 = operation ON (1)/OFF (0).

Room thermostat input 2 = operation ON (1)/OFF (0).

See 

"14.2. Wiring diagram" on page 41

 for connection details.

The  operation  mode  of  the  unit  is  subject  in  the  master  VRV  DX

indoor remote controller.

[6

-

02]

 Heater kit option.

To activate the heater kit as an option of the HXY(080/125) heat

pump, change field setting [6-02]=1 (default value is "0").

From that moment on, the heat pump system will take the heater

kit  into  account  whilst  deciding  operation.  When  the  heater  is

actually  operating,  the  heater  symbol  is  shown  on  the  remote

controller  of  the  hydrobox.  Refer  to 

"9. Installing  the  optional

EKBUHAA(6V3/6W1) heater kit" on page 26

.

[6

-

03]

 Setting is not applicable.

[8] Option setup

[8

-

00]

 User interface temperature control.

[8

-

00]

=0  the  unit  operates  in  leaving  water  temperature

control. This is the default setting.

[8

-

00]

=1 the unit operates in room temperature control. This

means that the user interface is used as room thermostat, so

the user interface can be placed in the living room to control

the room temperature.

[8

-

01]

 Setting is not applicable.

A

Normal room temperature set point

B

Room setback temperature [5

-

03]

t

Time

T

Temperature

A

Normal leaving water temperature set point

B

Leaving water setback temperature =A–[5

-

02]

t

Time

T

Temperature

T

t

Target water temperature

T

A

Ambient (outdoor) temperature

Shift value

= Shift value

[2-01]

[2-02]

A

B

T

t

21°C

18°C

[2-01]

[2-02]

B

A

T

t

45°C

40°C

5°C [5-02]

Lo_Ti

Lo_A

Hi_A

T

A

T

t

+ 05

00

– 05

Hi_Ti

Shift value

INFORMATION

If by mistake the value of [3

-

03] is set higher than the value

of [3

-

02], the value of [3

-

03] will always be used.

Summary of Contents for HXY080A8V1BF

Page 1: ...INSTALLATION AND OPERATION MANUAL HXY080A8V1BF HXY125A8V1BF System indoor unit...

Page 2: ...rtificaat C 05 Nota como se establece en A y es valorado positivamente por B de acuerdo con el Certificado C 06 Nota delineato nel A e giudicato positivamente da B secondo il Certificato C 07 A B C 08...

Page 3: ...ion 16 7 4 1 To fix the user interface cover to the indoor unit 16 7 4 2 To close the indoor unit 16 8 Commissioning 17 8 2 Final air purging 17 8 3 Field settings 17 8 3 1 Procedure 17 8 3 2 Detailed...

Page 4: ...gerant of oil and of other parts 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 r...

Page 5: ...erant gas comes into contact with fire WARNING Always recover the refrigerants Do NOT release them directly into the environment Use a refrigerant reclaim unit to evacuate the installation NOTICE Make...

Page 6: ...and or codes that are relevant and applicable for a certain product or domain Service company Qualified company which can perform or coordinate the required service to the product Installation manual...

Page 7: ...h Control close to the indoor unit Room thermostat functionality in the principal space to be heated Room thermostat EKRTWA EKRTR1 You can connect an optional room thermostat to the indoor unit This t...

Page 8: ...valve field supply j User interface slave The under floor heating or heat pump connection is directly connected to the indoor unit The room temperature is controlled by the user interface which is us...

Page 9: ...al capacity in case of heat pump capacity shortage See 9 Installing the optional EKBUHAA 6V3 6W1 heater kit on page 26 for details 6 Preparation 6 1 Preparing installation site Do NOT install the unit...

Page 10: ...high humidity max RH 85 for example a bathroom In places where frost is possible Ambient temperature around the indoor unit should be 5 C The indoor unit is designed for indoor installation only and f...

Page 11: ...nt galvanic corrosion Never use Zn coated parts in the water circuit Because the unit s internal water circuit uses copper piping excessive corrosion may occur Only use appropriate tooling to handle b...

Page 12: ...uit is 100 l No actions or adjustments are required Example 2 The indoor unit is installed at the highest point in the water circuit The total water volume in the water circuit is 350 l Actions Becaus...

Page 13: ...ectrical connections to the fixed wiring All components procured on the site and all electrical construction must comply with the applicable legislation WARNING The indoor unit should have a dedicated...

Page 14: ...nnection 9 52 mm b Refrigerant gas connection 15 9 mm 1 Connect the liquid piping from the outdoor unit to the refrigerant liquid connection of the indoor unit 2 Connect the gas piping from the outdoo...

Page 15: ...duce capacity losses during heating and cooling operations If the temperature is higher than 30 C and the humidity is higher than RH 80 the thickness of the sealing materials should be at least 20 mm...

Page 16: ...able legislation Use only copper wires All field wiring must be carried out in accordance with the wiring diagram supplied with the unit and the instructions given below Never squeeze bundled cables a...

Page 17: ...e Fixation of the user interface to the indoor unit 1 Fix the wallplate of the user interface to the frontplate of the unit For installation of the frontplate see 7 4 1 To fix the user interface cover...

Page 18: ...tening the mounting screws INFORMATION If next to the standard remote controller the optional remote controller is installed as well Connect the electrical wires of both remote controllers in the same...

Page 19: ...valves Make sure that the shut off valves are correctly installed and fully open Once all checks are fulfilled the unit must be closed only then can the unit be powered on When the power supply to th...

Page 20: ...ng can be programmed in 2 different ways based on the temperature set point both leaving water temperature and room temperature and based on the ON OFF instruction In the following tables both methods...

Page 21: ...LED will stop working When pushing the button The schedule timer for space heating will stop when active at that moment and will start again at the next scheduled ON function The last programmed comma...

Page 22: ...is installed its operation must be enabled by field setting Default 6 01 0 which means no external room thermostat is installed Set 6 01 2 if the optional external room thermostat is installed The ext...

Page 23: ...ccount influence of high ambient temperatures in the measurement 9 02 Setting is not applicable 9 03 Leaving water temperature compensation value for cooling operation 9 04 Setting not applicable A Op...

Page 24: ...20 1 C 02 Set point at low ambient temperature Lo_Ti 40 25 80 1 C 03 Set point at high ambient temperature Hi_Ti 25 25 80 1 C 4 Settings are not applicable 00 Not applicable Do not change the default...

Page 25: ...1 C 03 Set point cooling leaving water minimum temperature 10 5 18 1 C 04 Not applicable Do not change the default value 0 d Settings are not applicable 00 Not applicable Do not change the default va...

Page 26: ...and are blinking 3 Push the button again to leave this mode If no button is pressed the user interface leaves the display mode after 10 seconds Procedure for space heating cooling 1 Check the leaving...

Page 27: ...do not touch a conductive section Do not rinse the unit This may cause electric shocks or fire Play it safe Touch a metal part by hand such as piping sheet metal in order to eliminate static electric...

Page 28: ...heater Refer to 8 3 Field settings on page 17 how to make field settings for field settings related to the EKBUHAA heater kit Other field settings which are explained in the EKBUHAA manual are not app...

Page 29: ...e master VRV DX Indoor Unit Refer to outdoor unit manual for further information Push the or button Display 88 8 starts blinking Display Set desired room temperature e g 22 C The user interface room t...

Page 30: ...s active 16 PUMP ICON This icon indicates that the circulation pump is active 17 OUTDOOR TEMPERATURE DISPLAY When this icon is flashing the outdoor ambient temperature is displayed Refer to 11 3 7 Tem...

Page 31: ...ed by the room temperature set point The set point can be set manually or through the schedule timer Selecting space cooling operation 1 Use the button to switch ON OFF space cooling Icon appears on t...

Page 32: ...t point Activating this operation will result in a lower power consumption than use with a manually fixed leaving water set point During weather dependent operation the user has the possibility to shi...

Page 33: ...time at which setback is started 2 02 Stop time time at which setback is stopped 5 02 Leaving water setback temperature temperature drop A Normal leaving water temperature set point B Leaving water s...

Page 34: ...Time T Temperature set point Room temperature Leaving water temperature INFORMATION By default space cooling based on temperature set point method 1 is enabled so only temperature shifts are possible...

Page 35: ...st action and end with the highest number for the last action This is not a requirement but will simplify the interpretation of the program later If 2 or more actions are programmed for the same day a...

Page 36: ...time 8 Use the and buttons to set the leaving water temperature 9 Use the and buttons to set the room temperature 10 Use the button to select to switch cooling and the user interface off 11 Repeat st...

Page 37: ...e 10 Use the and buttons to set the room temperature 11 Use the button to select to switch heating and the user interface off to select automatic temperature calculation for leaving water temperature...

Page 38: ...e selected mode is blinking You can leave programming by pressing the button 3 Press the button to confirm the selected mode The actual day is blinking 4 Select the day you would like to copy to the n...

Page 39: ...nd value of altered field settings at variance with the default value 11 4 1 Procedure To change one or more field settings proceed as follows 1 Press the button for a minimum of 5 seconds to enter FI...

Page 40: ...bient temperature Hi_A 15 10 20 1 C 02 Set point at low ambient temperature Lo_Ti 40 25 80 1 C 03 Set point at high ambient temperature Hi_Ti 25 25 80 1 C 4 Settings are not applicable 00 Not applicab...

Page 41: ...re not applicable 00 Not applicable Do not change the default value 10 01 Not applicable Do not change the default value 30 02 Not applicable Do not change the default value 15 03 Not applicable Do no...

Page 42: ...g the button In case this procedure for resetting the safety is not successful contact your local dealer For other malfunction codes which may be displayed during the system test run or operation see...

Page 43: ...te YLW Yellow Notes PC L N X2M C COM X1M H H20 R1H X1M X1M only for EKRTR only for EKRTETS only for EKRTW 1 C COM H 1 A6P A6P A7P X801M 4 5 1 2 3 A4P 1 A1P WHT YLW ORG BLU RED BRN BLU BRN RED BLK WHT...

Page 44: ...e on DX cooling cold draft and total efficiency Heating operation a Outdoor Ta CDB WB b Indoor LWC C c Warming up zone d Normal operation range 14 5 ESP curve ESP External Static Pressure Flow Waterfl...

Page 45: ...a 85 65 Power input W 110 135 Water side Heat exchanger Type Brazed plate Quantity 1 Minimal water flow rate d d Flow switch setting l min 15 Nominal water flow rate Cooling a l min 22 9 35 8 Heating...

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Page 48: ...4P405267 1C 2021 04 Copyright 2021 Daikin 3...

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