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Installation and operation manual

2

125A8V1BF

VRV IV System indoor unit

4P405267-1C – 2021.04

1. About the documentation

1.1.

About this document

This document is an installation manual. It is intended for authorized

installers  of  this  product.  It  describes  the  procedures  for  installing,

commissioning  and  maintaining  the  unit,  and  it  will  provide  help  if

problems occur. Carefully read the relevant parts of the manual.
This  document  is  also  an  operation  manual.  It  is  intended  for  the

installer and the user of this product. It describes how to operate and

maintain the unit, and it will provide help if problems occur. Carefully

read the relevant parts of the manual.

1.2.

Scope of the manual

This manual does NOT include the selection procedure and the water

system design procedure. Only some precautions and tips and tricks

about the design of the water circuit are given in a separate chapter

of this manual.
Once  the  selection  is  done  and  the  water  system is designed, this

manual  describes  the  procedures  for  handling,  installing  and

connecting the HXY080/125 units. This manual has been prepared to

ensure adequate maintenance of the unit, and it will provide help if

problems occur.

1.3.

Documentation set

This  document  is  part  of  a  documentation  set.  The  complete  set

consists of:

Latest revisions of the supplied documentation may be available on

the regional Daikin website or via your dealer.

2. General safety precautions

2.1.

For the user

If you are not sure how to operate the unit, contact your installer.

The  appliance  is  not  intended  for  use  by  persons,  including

children, with reduced physical, sensory or mental capabilities,

or  lack  of  experience  and  knowledge,  unless  they  have  been

given supervision or instruction concerning use of the appliance

by  a  person  responsible  for  their  safety.  Children  must  be

supervised to ensure that they do not play with the product.

Units are marked with the following symbol:

This means  that  electrical  and electronic  products  may  not  be

mixed with unsorted household waste. Do NOT try to dismantle

the system yourself: the dismantling of the system, treatment of

the  refrigerant,  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  recovery.  By  ensuring  this  product  is

disposed of correctly, you will help to prevent potential negative

consequences for the environment and human health. For more

information, contact your installer or local authority.

2.2.

For the installer

2.2.1. General

If  you  are  not  sure  how  to  install  or  operate  the  unit,  contact  your

dealer.

In accordance with the applicable legislation, it might be necessary to

provide a logbook with the product containing at least: information on

maintenance, repair work, results of tests, stand-by periods,…
Also,  at  least,  following  information  must  be  provided  at  an

accessible place at the product:

Instructions  for  shutting  down  the  system  in  case  of  an

emergency.

Name and address of fire department, police and hospital.

Name,  address  and  day  and  night  telephone  numbers  for

obtaining service.

In Europe, EN378 provides the necessary guidance for this logbook.

Document

Contains…

Format

Indoor unit 

installation/operation 

manual

Installation and 

operator instructions

Indoor unit 

installation/operation 

manual

Outdoor unit installation 

manual

See info delivered with 

outdoor unit.

CAUTION

Do NOT rinse the unit. This may cause electric shocks or

fire.

NOTICE

Do NOT place any objects or equipment on top of the

unit.

Do NOT sit, climb or stand on the unit.

NOTICE

Improper  installation  or  attachment  of  equipment  or

accessories  could  result  in  electric  shock,  short-circuit,

leaks,  fire  or  other  damage  to  the  equipment.  Only  use

accessories, optional equipment and spare parts made or

approved by Daikin.

WARNING

Make  sure  installation,  testing  and  applied  materials

comply  with  applicable  legislation  (on  top  of  the

instructions described in the Daikin documentation).

CAUTION

Wear adequate personal protective equipment (protective

gloves,  safety  glasses,…)  when  installing,  maintaining  or

servicing the system.

DANGER: RISK OF BURNING

Do NOT touch the refrigerant piping, water piping or

internal parts during and immediately after operation.

It could be too hot or too cold. Give it time to return to

normal  temperature.  If  you  must  touch  it,  wear

protective gloves.

Do NOT touch any accidental leaking refrigerant.

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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