Vivax ACP-24COFM70GEI Скачать руководство пользователя страница 29

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Replace PFC module

Replace PFC electric
inductance

Normal

Abnormal

PFC protection

Remove the obstruction,

clean and wash

Evenly coated the

coolant on IPM

module then install

the power module

Check whether the coolant is coated evenly, is
there any obstruction in installation position,
whether the screws on power module is tightened

Check whether the outdoor unit heat exchanger radiating
effect is good or not

Check whether the
3-core wire which
connected with
power module is
firmed or not

If there is no voltage
between PN then
replace PFC module

If there is no AC input
then check the circuit
of outdoor unit mainboard
circuit and fuse

5-core has problem
replace 5-core wire,
if there is no problem
replace PFC module

When compressor
start up, the voltage
of the compressor
can not arrive 380V,
then replace the
power module.

If there is 310V between PN but
when compressor start up, the
voltage is still 310V

After wired, then power on
to turn on the unit, check
whether there is AC
input between AC_L1
and AC-N1

Turn on, test voltage between PN, the voltage is
about 310 when compressor doesn’t start up, when
compressor start up normally, the voltage between
PN is about 380

If voltage between PN is normal, then to check
whether the input AC is abnormally fluctuated,
if the voltage fluctuation between procedure
is large or protective unit off momently when power
off, that is normal protection and unit off

Check PFC electric inductance white wire to yellow wire
and green wire, brown wire to yellow wire and green wire,
if there any restance value is 0, PFC electric inductance
short circuit

Under the condition of whole unit is powered off,
pull out the wire on AC_L1, AC_N1, then test
the resistance between AC_L1 and AC_N1,
if the value of resistance is 0, the PfC module
damaged

Turn the whole unit power off, use multi-meter to
test the DC voltage between power module P,N
and make sure if there is no voltage between PN,
pull out the wire on P, N then test the resistance
between P-N, if the value is 0, the module damaged

Temperature sensor F1, F2, F3,F4,F5 or cooling indicator extinguish 3s blink once, extinguish 3s blink twice, extinguish
3s and blink three times, extinguish 3s and blink four times, extinguish 3s and blink five times.

Processing method: Pls check whether the resistance value of corresponding sensor is normal or not;
Reliabily inserted or not; Lead wire damaged or not; Otherwise the sensor electric circuit or controller
have malfunction

Some of indoor unit haven’t display the troubleshooting or processing of malfunction;

Start up failure

Malfunction and phenomenon: After unit is turned on, indoor and outdoor units normally run, but there is no
cooling or heating, observe module of outdoor unit and discover the malfunction indicator firstly blinks 7 times,
after start up for many times later, the malfunction indicator blinks 6 times.

Processing method:

PFC protection HC or Heating indicator extinguish 3s blinks 6 times

Cause: Voltage change suddenly, poor radiating of PfC module, connection wire (PFC control wire)
between power module and PFC module is poor connected, over current ect.

Processing method: