13 Unit installation
Installation and operation manual
20
BS4~12A14AJV1B
VRV 5 branch selector unit
4P670163-1 – 2022.02
12.6
Combinations of safety measures
It is possible to combine BS units with different safety measures (no
safety measures, external alarm and ventilated enclosure) in the
same system.
Example
a
b
b
e
f
d
c
a
Outdoor unit
b
BS unit with ventilated enclosure safety measure
c
BS unit without safety measures
d
BS unit with external alarm safety measure
e
Extraction fan
f
External alarm
Transmission wiring
Field settings
BS units (b) with ventilated enclosure safety measure
Code
Description
Value
[2-0]
Cluster indication
1: enable
[2-1]
Cluster number
1
[2-2]
Cluster configuration
0 (default): parallel
[2-4]
Safety measures
1 (default): enable
[2-7]
Ventilated enclosure
1 (default): enable
BS units (c) without safety measures
Code
Description
Value
[2-0]
Cluster indication
0 (default): disable
[2-4]
Safety measures
0: disable
BS units (d) with external alarm safety measure
Code
Description
Value
[2-0]
Cluster indication
0 (default): disable
[2-4]
Safety measures
1 (default): enable
[2-7]
Ventilated enclosure
0: disable
Note:
Some field settings need to be made on all main PCB's (A1P,
A2P and A3P) of the same BS unit. For more information, see
34].
13
Unit installation
WARNING
The installation MUST comply with the requirements that
apply to this R32 equipment. For more information, see
"12 Special requirements for R32 units"
14].
13.1
Preparing the installation site
Avoid installation in an environment with a lot of organic solvents
such as ink and siloxane.
Do NOT install the unit in places often used as work place. In case
of construction works (e.g. grinding works) where a lot of dust is
created, the unit MUST be covered.
Choose an installation location with sufficient space to carry the unit
in and out of the site.
WARNING
The appliance shall be stored in a room without
continuously operating ignition sources (example: open
flames, an operating gas appliance or an operating electric
heater).
13.1.1
Installation site requirements of the unit
CAUTION
Appliance NOT accessible to the general public, install it in
a secured area, protected from easy access.
This unit is suitable for installation in a commercial and
light industrial environment.
CAUTION
This equipment is NOT intended for use in residential
locations and will NOT guarantee to provide adequate
protection to radio reception in such locations.
NOTICE
The professional installer shall evaluate the EMC situation
before installation, if the equipment is installed closer than
30 m to a residential location.
NOTICE
The installation and any maintenance requires a
professional with relevant EMC experience to install any
specific EMC mitigation measures defined in the user
instructions.
NOTICE
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 in such a way that they keep a proper
distance from stereo equipment, personal computers, etc.
In places with weak reception, keep distances of 3 m or
more to avoid electromagnetic interference of other
equipment and use conduit tubes for power and
transmission lines.
INFORMATION
Equipment meets the requirement for commercial and
light-industrial location when professionally installed and
maintained.
INFORMATION
The sound pressure level is less than 70 dBA.
INFORMATION
Also read the following requirements:
▪ Service space requirements. See below in this topic.
▪ Refrigerant piping requirements. See
Safety measures differ depending on the total amount of refrigerant
in the system and on the floor area. See
The BS unit is designed for indoor installation only. Always respect
the following conditions.
Ambient condition
Value
Indoor temperature
15~32°C DB
