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NOTE
The equipment described in this manual may cause
electronic noise generated from radio-frequency energy.
The equipment complies to specifications that are
designed to provide reasonable protection against such
interference. However, there is no guarantee that
interference will not occur in a particular installation.
It is therefore recommended to install the equipment and
electric wires keeping proper distances away from stereo
equipment, personal computers, etc....
In extreme circumstances you shall keep distances of 3m
or more and use conduit tubes for power and transmission
lines.
INFORMATION
More information about the legend and the location of the
wiring diagram of the unit can be found in "13.2. Wiring
diagram" on page 39.
The Wiring diagram on the indoor unit is only for the indoor
unit.
For the outdoor unit refer to the wiring diagram of the
outdoor unit.
7.3.2.
System overview of field wiring
Field
wiring
consists
out
communication (= transmission F1F2) wiring, wiring of the user
interface (=P1P2), wiring for connection of options and field supply
accessories.
7.3.3.
Requirements
A power supply (refer to the table mentioned in "6.3.2. Overview of
electrical connections on the indoor unit" on page 11) must be
provided for connection of the unit. The power supply must be
protected with the required safety devices, i.e. a main switch, a slow
blow fuse on each phase and an earth leakage protector in
accordance with applicable legislation.
Selection and sizing of the wiring should be done in accordance with
the applicable legislation based on the information mentioned in the
table "6.3.2. Overview of electrical connections on the indoor unit" on
page 11.
7.3.4.
To open the switch box cover
4x
7.3.5.
To connect the electrical wiring on the indoor unit
NOTE
Check
the
table
in
connections on the indoor unit" on page 11 to know which
wiring should be routed in the high voltage cable bundle
and which wiring should be routed in the low voltage cable
bundle.
2
Put the 2 conduit mounting plates onto the bottom plate for high
voltage line.
3
Wiring should enter the unit from the bottom.
HXY48TAVJU
VRV System indoor unit
3P616151-1A – 2021.12
of
power
supply,
indoor-outdoor
"6.3.2. Overview
of
electrical
4
Routing of the wiring inside the unit and switchbox should be as
follows:
A
B
D
C
A Conduit (field supply)
B Conduit Mounting Plates (accessory)
C Lock nut (field supply)
D Unit bottom plate
X1M
c
b
a Low voltage cable bundle (see "6.3.2. Overview of
electrical connections on the indoor unit" on page 11
b High voltage cable bundle (see "6.3.2. Overview of
electrical connections on the indoor unit" on page 11
c Earth connection
d Optional
5
Fix the cable with cable ties to the cable tie mountings to ensure
strain relief and to make sure that it does NOT come in contact
with the piping and sharp edges.
CAUTION
Do NOT push or place redundant cable length in the unit.
7.3.6.
To connect the user interface
The unit is equipped with a user interface offering a user-friendly way
to set up, use and maintain the unit.
Before operating the user interface, follow this installation procedure.
NOTE
The wiring for connection is not included.
Procedure
NOTE
The user interface, delivered in a kit, has to be mounted
indoors.
Remove the front part of the user interface
Insert a slotted screwdriver into the slots (1)
in the rear part of the user interface, and
remove the front part of the user interface.
NOTE
The PCB is mounted in the faceplate of the user interface.
Be careful NOT to damage it.
1
Take out rubber bushing
from the unit
b
a
d
A4P
X2M
X801M
a
1
Installation and operation manual
15
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