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Electrical installation
Installer and user reference guide
88
BS4~12A14AJV1B
VRV 5 branch selector unit
4P695527-1 – 2022.02
Setting when joining branch pipe ports
(a)
DS2 (A1P)
DS2 (A2P)
DS2 (A3P)
1
2
1
2
1
2
BS4A
A and B ports are joined
C and D ports are joined
BS6A
E and F ports are
joined
BS8A
G and H ports
are joined
BS10A
I and J ports
are joined
BS12A
K and L
ports are
joined
Target branch pipe port
(a)
ON
=joined /
OFF
=NOT joined (factory default)
Note:
When joining branch pipe ports, ONLY the combinations in above table are
possible. E.g.: it is NOT possible to join ports B and C.
Example
When joining branch pipe ports A and B.
ON
DS2 (A1P)
OFF
1 2 3 4
Examples
1.
When connecting an indoor unit to branch pipe ports A, B,
and D, but NOT connecting an indoor unit to branch pipe
port C.
ON
DS1 (A1P)
OFF
1 2 3 4
ON
DS2 (A1P)
OFF
1 2 3 4
2.
When joining branch pipe ports A and B. Connecting an
indoor unit to the joined branch pipe ports A and B, also to
branch pipe port C, but NOT connecting an indoor unit to
branch pipe port D.
ON
DS1 (A1P)
OFF
1 2 3 4
ON
DS2 (A1P)
OFF
1 2 3 4
16.5 To connect the external outputs
FAN output (extraction fan)
The extraction FAN output is a contact on terminal X6M that closes in case a leak is
detected, or when there is a failure or disconnection of the R32 sensor in the BS
unit.
The FAN output must be used when a ventilated enclosure is required (see
"13.3 To determine the required safety measures"
b
FAN SVS
1
1 2
2
X6M
a
a
FAN output terminals (1 and 2)
b
Cable to extraction fan circuit
Select and dimension the wiring in accordance with the applicable legislation based
on the information in the notice below:
Содержание VRV 5 BS4A14AJV1B
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