REMKO RVD xxx DC - Manual (Page 5)

The equipment is shipped in sturdy
transport packaging. Immediately
check the equipment on delivery and
make a note of any damage or miss-
ing parts on the delivery note. Inform
the forwarding agent and contractual
partner. Warranty claims at a later
date will not be accepted.
The RVD 351-1051DC room air
conditioning units have a REMKO
RVD...AT outdoor component as
well as an indoor unit RVD...IT.
The outdoor unit serves to output
the heat extracted by the indoor
unit from the room being cooled.
In heating operation, the heat
absorbed by the outdoor compo-
nent can be discharged through
the indoor unit into the room being
heated.SFlbIn both operating modes,
the performance of the compressor
precisely adjusts itself to the de-
mand, thereby regulating the target
temperature with minimal tempera-
ture variations. This "inverter-tech-
nology" enables power saving over
conventional split systems and also
reduces noise emissions to a particu-
larly low level.
The outdoor component is mounted
outdoors or under the observa-
tion of certain requirements it may
be installed indoors. The outdoor
component consists of a refrigerant
circuit with compressor, fin liquefier,
liquefier fan, reverse flow valve and
flow regulator. The outdoor unit is
controlled via the regulation of the
indoor unit.
The indoor unit is designed for
indoor installation in suspended
ceilings with Euroraster dimensions.
The cassette is hidden behind the
suspended ceiling, only its cover is
visible. Operation is undertaken via
an infrared remote control unit. The
indoor unit consists of a fin vapor-
iser, vaporiser fan, regulation system
and condensation pan.
Floor consoles, wall consoles, re-
frigerant pipes and a winter control
program are available as accessories.
Description of the
equipment
Transport and
Packaging
The connection between the indoor unit and the outdoor component is
made with refrigerant pipes.
M
M
RXT 351 DC
T2
T3
T5
RXT 521 DC
M
M
TE
P S H
T1
T2
T3
T5
P S L
M1 M3
T2
T3
T4
T5 M2
PSL
PSH
T1
M1 - Condenser fan
M2 - Compressor
M3 - Vaporiser fan IU
V1 - Reversing valve C/H
EEV - Elec. Expansion valve
PSH - High pressure switch OU
PSL - Low pressure switch OU
T1 - Sensor hot gas OU
T2 - Sensor air intake OU
T3 - Sensor condenser OU
T4 - Sensor air intake IU
T5 - Sensor vaporiser IU
Schematic of refrigerant circuit series RVD 351-1051 DC
Filter Filter
Filter
Filter Filter
Indoor area Outdoor area
M1
M2
M3
T4
T2
T3
T5
T1
RXT 1051 DC
M
M
P S H
T1
T2
T3
TE
T5
P S L
T2
T3
T4
T5
M3
M2
M1
PSL
PSH
T1
Oil r
eturn
RVD 521-681 DC
RVD 1051 DC
RVD 351 DC
V1
V1
V1
EEV
EEV
IU - Indoor unit
OU - Outdoor unit
Condensate line
Condensate drain
System layout
Outdoor unit
Shut-off valve
Indoor unit
Condenser fan
Outdoor area
Injection pipe
suction pipe
Control line
Indoor area
Power output
5