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3
Remove the accessories.
d
h
b
c
a
b
1x
1x
f
g
1x
4x
3
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
NOTICE
When installing or servicing several units at the same time,
make sure NOT to switch the service panels between
different models.
HXY080+125A8V1B
VRV IV System indoor unit
4P405267-1B – 2016.02
e
c
d
e
2x
1x
2x
4.1.1. Identification label: Indoor unit
Location
Model identification
Modelname: HXY080A8V1B, HXY125A8V1B
Code
H
Hydro Box
X
VRV connection
Y
Reversible applications (cooling + 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
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.
NOTICE
An additional 230 V AC power supply is required for the
EKRTR1 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.
Description
Installation and operation manual
5
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