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4.3Problems during installation
No. trouble analysis trouble shooting
1
the sensor is damaged when
welding, or the sensor is pulled
off and not be reposition
gas pipe sensor should be
pulled off during welding,
and reset it after welding
2 Dew occurs on connection pipe
insulation layer is too thin, it
should thicker than 15 mm
3
system additional refrigerant
charging amount is incorrect
calculate the liquid pipe
length and charge
refrigerant
4 connection pipe is too long
the pipe should not longer
than regulated length
5
units in same system do not
being electrified accordantly,
so some indoor has no power
supply when working
electrify the system as
required, ensure the
whole system act
accordantly
6
signal wire is not shielded wire,
so the indoor is disturbed and
missing
signal wire must be shielded
wire
7
outdoor can not find any indoor
because the signal wire of
indoor is cross and touch each
other
terminal A,B of signal wire
must use the wire with
same color, do not make
the wire cross and touch
each other
8
indoor unit signal wire does not
connect with the corresponding
outdoor, then cause failure
during running
In installation, the complete
working drawing is
necessary, and ensures
indoor/outdoor
communication wires not
crossed
Part 2
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