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No. trouble analysis trouble shooting
9
one wired controller controls
multiple indoor units, but these
indoors are not in one system, so
some of indoors in one system
do not run
one wired controller only
can control indoors in
one system
10
for indoor installation, if the
checking hole is too small or too
far from the electric box, then the
installation and maintenance will
be very difficult even can not be
done
the dimension and
position of checking hole
must be considered for
convenient installation
and maintenance
11
cassette unit is installed in too
high position ， so the
heating effect is not good
cassette unit installation
height should not higher
than the height that
required in the use manual
12
cassette unit is installed in the
corner of the room, so the air
flow from two outlets will flow to
the wall directly, then the
heating/cooling effect will be
affected
refer to the use manual,
the four sides of cassette
unit all should keep
enough distance from
the wall
13
after installation, before unit
startup the warm-up time is less
than 12 hours, Pulling out the oil
temp. sensor to heat up the oil will
result in compressor burnt out
when low oil temp. protection
acts.
before being electrified
first time the compressor
must be heated at least
12 hours
14
ceiling concealed unit need weld
installation, and the gas/liquid
pipe sensor should be pulled off
Part 2
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