13 Unit installation
Installation and operation manual
23
BS4~12A14AJV1B
VRV 5 branch selector unit
4P670163-1 – 2022.02
1
2
3×
SW8
13.3.3
To close the unit
2
1
3×
SW8
≤ 3.2 N·m
13.4
Mounting the unit
13.4.1
To mount the unit
INFORMATION
Optional equipment.
When installing optional equipment,
also read the installation manual of the optional equipment.
Depending on the field conditions, it might be easier to
install the optional equipment first.
1
Install 4 M8 or M10 suspension bolts into the ceiling slab.
Respect the following distances:
a
b
a
Suspension bolt pitch (length): 513 mm
b
Suspension bolt pitch (width):
630 mm (BS4A)
1030 mm (BS6~8A)
1430 mm (BS10~12A)
2
Install a nut, 2 washers and a double nut onto each suspension
bolt. Leave enough space for maneuvering with the unit
between the nut and double nut.
3
Position the unit by hooking the hanger brackets of the unit
around the suspension bolts, in between the two washers.
a
b
b
d
c
a
Nut (field supply)
b
Washer (field supply)
c
Hanger bracket
d
Double nut (field supply)
a
b
c
e
d
a
Ceiling slab
b
Anchor bolt
c
Long nut or turnbuckle
d
Suspension bolt
e
BS unit
4
Secure the unit by tightening the nut and double nut.
5
Level the unit at all 4 corners by turning the double nuts, the
long nuts or the turnbuckles. Use a level or water-filled vinyl
tube to measure if the unit hangs level. A deviation of maximum
1 degree is allowed in the direction of the drain socket and
away from the switch box.
NOTICE
If the unit is installed at a bigger angle than allowed, water
may drip from the unit.
b
a
a
Level
b
water-filled vinyl tube
≤
1°
a
b
A
B
≤
1°
A
a
B
a
Drain socket
b
Switch box
