Installation manual
6
RXYSQ4~Y1B
VRVIII-S System air conditioner
4PW68122-1 – 02.2011
5.3.
Method for installing drain piping
Depending on installation site, it may be required to install drain plug
for drainage (supplied with the unit).
In cold areas, do not use a drain hose with the outdoor unit.
Otherwise, drain water may freeze, impairing the heating
performance.
1
See the figure below for installation of the drain plug.
2
Connect a field supplied vinyl hose (internal diameter of 25 mm)
to the drain socket (A).
If the hose is too long and hangs down, fix it carefully to prevent
kinks.
6.
I
NSTALLATION
SERVICING
SPACE
■
The connection piping outlet direction in the installation shown in
figure 4
is frontward or downward. The unit of numeric values is
mm.
■
When routing the piping backward, secure space of
≥
250 mm on
the right side of the unit.
(A) In case of non-stacked installation
(See figure 4)
(B) In case of stacked installation
1.
In case obstacles exist in front of the outlet side.
2.
In case obstacles exist in front of the air inlet.
A
Drain socket
B
Drain cap
C
Drain receiver
D
Insulation tape
E
Drain stop
NOTE
If drain holes of the outdoor unit are covered by a
mounting base or by floor surface, raise the unit in
order to provide a free space of more than 100 mm
under the outdoor unit.
E
E
B
A
B
D
C
C
C
B
A
B
D
Suction side obstacle
1
In these cases, close the
bottom of the installation
frame to prevent the
discharged air from
being bypassed
Discharge side obstacle
Left side obstacle
2
In these cases, only
2 units can be installed.
Right side obstacle
3
In these cases, no
restriction of height L1.
Top side obstacle
This situation is not
allowed
✓
Obstacle is present
NOTE
■
Do not stack more than one unit.
■
About 100 mm is required as the dimension
for laying the upper outdoor unit's drain pipe.
■
Get the portion A sealed so that air from the
outlet does not bypass.
≥
1000
100
A
≥
300
100
A
