REMKO RXT xxx DC - Manual (Page 5)

M
M
RXT 351 DC
T2
T3
T5
The units are shipped in sturdy
transport packaging. Immediately
check the units on delivery and
make a note of any damage or
missing parts on the delivery note.
Inform the forwarding agent and
contractual partner. Warranty
claims at a later date will not be
accepted.
RXT 351-1401DC room air
conditioning units have a REMKO
RXT...DC AT outdoor component
as well as an RXT...DC IT indoor
unit.
When in cooling mode, the
outdoor component serves to
release the heat extracted by the
indoor unit from the room being
cooled into the outside air. In
heating mode, the heat absorbed
by the outdoor component 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
demand, thereby regulating the
nominal temperature with minimal
temperature variations. This
"inverter technology" results in
energy savings over conventional
split systems and also reduces
noise emissions to a particularly
low level.
The outdoor component can
be installed outdoors or indoors
providing that certain requirements
are met. The unit is designed both
for both wall and ceiling-mounted
indoor operation. Operation takes
place using an infrared remote
control. The outdoor component
consists of a refrigerant circuit
with compressor, fin condenser,
condenser fan, reverse flow valve
and electronic expansion valve
(RXT 521-1401DC). The outdoor
component is controlled by the
controller in the indoor unit.
The indoor unit consists of a fin
vaporiser, vaporiser fan, controller
and condensation pan.
Floor consoles, wall consoles,
refrigerant pipes, wired remote
controls and condensation pumps
are available as accessories.
System description
Transport and
packaging
The connection between the indoor unit and the outdoor component is
made by way of the refrigerant lines.
M1 - Condenser fan
M2 - Compressor
M3 - IU vaporiser fan
V1 - C/H switching valve
EEV - Electr. expansion valve
PSH - OC high pressure switch
PSL - OC low pressure switch
T1 - OC hot gas sensor
T2 - OC air intake sensor
T3 - OC condenser sensor
T4 - IU air intake sensor
T5 - IU vaporiser sensor
Diagram of the series RXT 351-1401DC refrigerant circuit
Filter Filter
Filter Filter
System layout
Outdoor component
Shut-off valve
Indoor unit
Condenser fan
Outdoor area
Injection line
Suction line
Control cable
Condensate line
Interior ceiling installation
Condensate line
Mains cable
Indoor area
Outdoor area
M1
M2
M3
T4
T2
T3
T5
T1
RXT 351 DC
V1
EEV
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 line
V1
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
Filter
V1
EEV
RXT 521-681 DC
RXT 1051-1401 DC
5