13 Unit installation
Installation and operation manual
22
BS4~12A14AJV1B
VRV 5 branch selector unit
4P670163-1 – 2022.02
[mm]
100
450
A
40
30
100
450
875
A
Ceiling opening size:
800 mm (BS4A)
1200 mm (BS6~8A)
1600 mm (BS10~12A)
13.2
Possible configurations
Refrigerant piping
A
B
b
a
a
a
1
2
1
2
b
a
a
a
C
b
b
A
Refrigerant piping connected to left side only
B
Refrigerant piping connected to right side only
C
Refrigerant piping connected to both sides (flow-through)
1
From outdoor or from BS unit
2
From outdoor or from/to BS unit
a
Stopper pipes (accessory)
b
Field piping (field supply)
Ducting
A
a
1
A’
a
a
b
1
2
1
B
a
2
1
B’
a
a
b
C
c
A
Default flow. Only ducting on the air outlet side. (Default
configuration)
A'
Default flow. Ducting on both sides.
B
Reversed flow. Only ducting on the air outlet side.
B'
Reversed flow. Ducting on both sides.
C
No extraction ventilation installed
1
To extraction fan or another BS unit
2
From another BS unit
a
Duct (field supply)
b
EKBSDCK (option kit)
c
Duct closing plate (accessory)
In case you need to reverse the airflow, switch the air inlet and outlet
side. See
"13.5.3 To switch the air in- and outlet side"
INFORMATION
Some options may require additional service space. Refer
to the installation manual of the used option before
installation.
13.3
Opening and closing the unit
13.3.1
About opening the unit
Some situations in which you have to open the unit can be:
▪ When connecting the electrical wiring.
▪ When maintaining or servicing the unit.
DANGER: RISK OF ELECTROCUTION
Do NOT leave the unit unattended when the service cover
is removed.
13.3.2
To open the unit
DANGER: RISK OF ELECTROCUTION
