Oil return measures
If the outdoor component is
installed at a higher level than
the indoor unit, suitable oil return
measures must be taken. Usually
an oil pump bend is installed for
every 2.5 metres of height differ-
ence.
Oil return measures
Exterior unit
Oil pump bend
in suction pipe to
outdoor unit
1 x every 5
metres of rising
pipe
Radius:
50 mm
max. 5/10 m
Interior unit
Installation
Unit installation
The indoor unit is mounted face
down on four threaded rods. Take
into account the ceiling grid and
any other installations.
1. Use the dimensions of the ceil-
ing cassette
(Fig. 6)
to mark the
fixing points for the threaded
rods on structural parts ap-
proved to support the static
load above the suspended ceil-
ing.
2. Fit the indoor unit onto the
threaded rods and use the
lower nuts to level the unit
(Fig. 7)
.This ensures that the
condensate drains into the col-
Installation should only be
performed by authorised spe-
cialists.
NOTE
lection tray.
3. Fit the ceiling cassette approx.
2 cm higher than the surface of
the ceiling. (see Figure 8)
4. Make sure that clearance A,
(Fig. 8)
as specified in the table
below, is provided between the
underside of the suspended
unit and the underside of the
fastening surface.
5. Connect the refrigerant pipes,
electrical cables and condensa-
tion line to the indoor unit as
described below.
6. Check that the unit is level.
7. The final task is to tighten the
counternuts and attach the
cover.
Dimensions in
mm
RVD 351-
521DC
Distance A
35 mm
Distance B
25 mm
Mounting
the unit
620 x 400 mm
7 Hooking in the unit
8 Fastening the unit
Structural component
Structural component
B
A
6 Mounting the unit
400
610
All dimensions in mm
abaut 2 cm
Structural component
Dimensions in
mm
RVD 681-
1051DC
Distance A
35 mm
Distance B
25 mm
Mounting
the unit
620 x 400 mm
REMKO RVD...DC
18
