Part 3
2.4.3 Cooling operation confirmation
±
st art
(380V
±
10%)
set the mode as COOL: press the button
for over 5 seconds at OFF state
once outdoor stops, re-start
up the unit 2 and a half
minutes later
check every indoor unit
if blowi ng out cold air
confirm the running state of
the compressor, indoor EEV
no
yes
no
no
no
no
yes
yes
yes
yes
yes
no
no
if the ven tilation is good if the louver direction
make all indoors running
simultaneously
temp. diff erence between air
o ut let a n d air i nle t is g oo d
if running voltage is proper
if runn ng curren t is in the
rang e o f r at ed curr ent 15%
(at the max. freq uency)
if running pressure is proper
nor ma l
check the power source
voltage, the power cable
spec and the the power
cable terminal installation
ch eck i ndoor/ outdoor temp.,
pipe length, refrigerant
charging amount, indoor
capacity, compressor
running frequency, outdoor
fan operation, and if
compressor sounds
abnormal noise
- 105 -
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