Adding refrigerant
The units contain a basic
quantity of refrigerant. Should
the refrigerant leak, remedy
the leak, pump the refrigerant
pipes down to a vacuum and refill
the basic quantity of refrigerant.
Refrigerant fill
quantity
BL 261 BL 351
Basic
line length
0.7 kg
1.0 kg
Following a successful leak check,
the unit can be started again
without the pipes needing to be
pumped down to a vacuum.
Perform the following checks
prior to commissioning the unit
for the first time and after any
interventions affecting the cooling
circuit. Record the results in the
commissioning report:
■
Check and open shut-off valves
■
Check all refrigerant pipes and
valves using leak detection
spray or soapy water to ensure
they are tight and that the
suction and injection pipes have
not been accidentally confused
with the unit at a standstill.
■
Check the refrigerant lines and
insulation for damage.
■
Check the electrical connection
between the indoor unit and
the 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, ensure that it is
always in liquid form!
!
ATTENTION
NOTE
Check overheating to
determine the refrigerant fill
quantity.
Wear protective clothing when
handling refrigerant.
!
ATTENTION
Commissioning
Commissioning should only be
performed and documented
by specially trained personnel.
NOTE
The system can be commissioned
once all the components have
been connected and tested.
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.
Functional checks 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.
■
Functional test of the indoor
unit and all program sequences.
■
Check of the surface
temperature of the suction
line and check vaporiser is
not overheating. To measure
the temperature, hold the
thermometer to the suction
line and subtract the boiling
point temperature reading on
the pressure gauge from the
measured temperature.
■
Record the measured
temperatures in the
commissioning report.
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.
REMKO BL
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