REMKO RVD 351 DC - Manual (Page 19)

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. 8) 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 any connection nozzles
before installing the unit if con-
nections to a second room or a
fresh air intake are required.
See section - Connections to
Installation should only be
performed by authorised spe-
cialists.
NOTE
a second room or a fresh air
intake.
3. Fit the indoor unit onto the
threaded rods and use the
lower nuts to level the unit
(Fig. 9) .This ensures that the
condensate drains into the col-
lection tray.
4. Make sure that clearance A,
(Fig. 10) as specified in the ta-
ble 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 mm
x400- mm
9 Hooking in the unit
10 Fastening the unit
Structural component
Structural component
B
A
8 Mounting the unit
400
620
All dimensions in mm
19