Gree /E-X, Руководство по обслуживанию

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GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
144
Feedback
from user
Exception
Possible reasons Solution
Primary reason Secondary reason Tertiary reason
Description
Confirmation
method
Description
Confirmation
method
Description
Confirmation
method
to the high
pressure; blocked. refrigerant to
feel the
temperature
difference. The
difference is
large or part of
the pipe is
frosting.
2.4.2 The
pipeline is
blocked by
impurities.
Replace and
solder the pipe.
3. The
ambient
temperature
exceeds the
required
range.
——
3.1 The
ambient
temperature
of the IDU
that works
in the
cooling
mode is
higher than
32°C.
Measure the
outdoor
ambient
temperature.
3.1.1 The
system has
worked for
less than 1
hour.
——
It is a normal
phenomenon.
3.1.2 An
improper
system is
selected.
——
Choose
another system
with larger
power.
3.2 The
outdoor
ambient
temperature
in the
cooling
mode is
higher than
40°C.
Measure the
outdoor
ambient
temperature.
—— ——
It is a normal
phenomenon.
3.3 The
ambient
temperature
of the IDU
that works
in the
heating
mode is
lower than
12°C.
Measure the
outdoor
ambient
temperature.
3.3.1 The
system has
worked for
less than 2
hours.
——
It is a normal
phenomenon.
3.3.2 An
improper
system is
selected.
——
Choose
another system
with larger
power.
3.4 The
outdoor
ambient
temperature
in the
heating
mode is
lower than
-7°C.
Measure the
outdoor
ambient
temperature.
—— ——
It is a normal
phenomenon.
4. Poor
airflow
distribution
design
——
4.1 The air
intake and
return inlet
of the ODU
are too
close to
each other,
affecting the
heat
exchange
Check the
distance.
—— ——
Re-design the
airflow
distribution.