Adding refrigerant
The units contain a basic quantity
of refrigerant. For refrigerant line
lengths of more than 5 metres
per circuit, an additional amount
of refrigerant must be added, in
accordance with the following
table:
RXT 351 DC RXT 521- 681DC RXT 1051 DC
RXT 1401 DC
Up to and incl. 5m
0 g/m
5m to max. 15m
30 g/m
-
-
5m to max. 25m
-
30 g/m
5m to max. 30m
30 g/m
5m to max. 50m
30 g/m
After leak testing has been
successfully completed, connect
the vacuum pump via the
pressure gauge station to the
valve connections on the outdoor
component (see chapter "Leak
testing") and create a vacuum.
Perform the following checks
prior to putting the unit into
operation for the first time and
after any work on the refrigerant
circuit. Record the results in the
commissioning report:
■
Check all refrigerant pipes and
valves using leak detection
spray or soapy water for leaks
and for accidental swapping of
the suction and injection lines,
with the unit at a standstill.
■
Check refrigerant pipes and
insulation for damage.
■
Check electrical connection
between indoor unit and
outdoor component for correct
polarity.
■
Check that all fastenings,
mountings, etc. are firm and at
the correct level.
Before
commissioning
When filling the system with
refrigerant, make sure that it is
always in liquid form!
!
CAUTION
NOTE
Check the refrigerant fill
quantity in the event of
overheating
Wear protective clothing when
handling refrigerant.
!
CAUTION
Commissioning
Commissioning should only be
performed and documented by
specially trained personnel.
NOTE
Once all the components have
been connected and tested, the
system can be commissioned
. A functional check should be
performed to verify its correct
function and identify any unusual
operational behaviour prior to
handing it over to the operator.
Function test and test run
Check the following points:
■
Leak tightness of refrigerant
pipes.
■
Compressor and fan running
smoothly.
■
In cooling mode, cold air
output by the indoor unit, and
warm air output by the outdoor
component.
■
Function test of the indoor unit
and all program sequences.
Check that the shut-off valves
and valve caps are tight after
carrying out any work on
the refrigerant circuit. Use
appropriate sealant products as
necessary.
NOTE
NOTE
The escape of refrigerant con-
tributes to climatic change. In
the event of escape, refrigerant
with a low greenhouse poten-
tial has a lesser impact on glo-
bal warming than those with a
high greenhouse potential.
This device contains refrige-
rant with a greenhouse poten-
tial of 1975. That means the
escape of 1 kg of this refrige-
rant has an effect on global
warming that is 1975 times
greater than 1 kg CO2, based
on 100 years. Do not conduct
any work on the refrigerant
circuit or dismantle the de-
vice - always enlist the help of
qualified experts.
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