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125A8V1BF

VRV IV System indoor unit

4P405267-1C – 2021.04

Installation and operation manual

5

Remove the accessories.

a

HXY(080/125) manual

b

User interface kit: user interface, 4 fixing screws, 2 plugs

c

Shut-off valve

d

User interface cover

e

2 fixing screws front panel

f

Bottomplate

g

4 fixing screws bottom plate

h

Topplate

4. About the units and options

4.1.

General information

This  installation  manual  concerns  VRV  IV  indoor  unit  air  to  water

inverter heat pump units of the Daikin HXY080/125 series.
These  units  are  intended  for  indoor  installation  and  aimed  for

commercial and public buildings.
The unit is designed for wall mounted installation.
HXY080/125  units  have  a  heating  capacity  of  9 kW/14 kW,  cooling

capacity of 8.2 KW/12.5  kW.
The  indoor  units  are  designed  to  work  at  indoor  ambient

temperatures from 5°C to 30°C.
During heating operation, the unit can heat up water to temperatures

of 25°C to 45°C, cooling operation of 5°C to 20°C.
The units are designed for indoor installation (outdoor temperatures:

cooling  10°C  to  43°C,  heating:  -20°C  to  24°C)  (for  details  see

technical data book).

4.1.

Identification

4.1.1. Identification label: Indoor unit

Location

Model identification

Modelname: HXY080A8V1B, HXY125A8V1B

4.2.

Possible combinations of units and options

4.2.1. List of options for indoor unit
User interface (EKRUAHT)

The  user  interface  is  delivered  as  an  accessory  with  the  unit. An

additional user interface is optionally available.
The additional user interface can be connected to have both:

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

thermostat can either be wired (EKRTWA) or wireless (EKRTR1).
For installation instructions, see the installation manual of the room

thermostat.

Remote sensor for wireless thermostat (EKRTETS)

You can use a wireless indoor temperature sensor (EKRTETS) only

in combination with the wireless thermostat (EKRTR1).
For  installation  intructions,  see  the  installation  manual  of  the  room

thermostat.

Demand PCB (EKRP1AHTA)

An  optional  EKRP1AHTA  demand  PCB  can  be  connected  to  the

indoor unit. This PCB is needed when an external room thermostat is

installed and provides the communication with the indoor unit.
Refer to the demand PCB installation manual for further details.
Refer to the wiring diagram or connection diagram for connecting this

PCB  to the unit  and 

"7.3.5. To connect  the  electrical  wiring on  the

indoor unit" on page 14

.

Heat pump convector (FWXV)

An  optional  FWXV  convector  for  heating/cooling  operation  can  be

connected to this indoor unit.
Refer  to  the  heat  pump  convector  installation  manual  for  further

details.

NOTICE

When installing or servicing several units at the same time,

make  sure  NOT  to  switch  the  service  panels  between

different models.

d

b
c

h

e

a

1x

b

c

d

2x

1x

g

4x

f

1x

e

1x

2x

3

Code

Description

H

Hydro Box

X

VRV connection

Y

Reversible applications (c heating)

080

Capacity class (approx.):

080 kW x 10 cooling capacity

125 kW x 10 cooling capacity

A8

Series

V1

Voltage 1 P~, 220-240 V, 50 Hz

B

European Market

NOTICE

An  additional  230 V AC  power  supply  is  required  for  the

EKRTR1 room thermostat.

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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