19
19
5.3.2.6
Control of outdoor fan
(1) When turn off the unit by thermostat, stop operation because
of protection or stop operation after reaching the temperature
point, outdoor can stop operation only after the compressor is
stopped for 1min;
(2) Under fan mode: outdoor fan stops operation.
(3) Defrosting-starting: enter into defrosting. Outdoor fan stops
operation after compressor stops for 50s.
(4) Defrosting-ending: quit defrosting. When the compressor
stops operation, the outdoor fan operates.
5.3.2.7
Control of 4-way valve
(1) 4-way valve status under cooling and fan modes: OFF;
(2) When the unit turned on and operated in heating mode, the
4-way valve is energized immediately;
(3) If turn off unit or switch to other mode in heating mode, the
4-way valve is de-energized after the compressor stops for
2min;
(4) When the unit is turned off because of each protection, the 4-
way valve is de-energized after 4min delayed;
(5) Defrosting-starting: enter into defrosting. After the
compressor stops for 50s, the 4-way valve will be de-
energized;
(6) Defrosting-ending: quit defrosting. After the compressor
stops for 50s, the 4-way valve is energized.
5.3.2.8
Freeze protection
(1) Under cooling mode, if it is detected that
T
\
<
0°C
(32°F) for 3min successively, the unit will stop operation due
to freeze protection. If
T
5 \ Z Z`
<
T
\
, and compressor stops for 3min, the complete unit
can resume operation;
(2) Under cooling mode, if
T
\
<
6°C (42.8°F), the
operation frequency of compressor may increase or
decrease;
(3) If the unit is stopped because of freeze protection for 6 times
successively, it cannot resume operation automatically and
the malfunction will be displayed continuously, which can
only be resumed by turning thermostat to OFF on heat
setting. During operation, if operation time of compressor is
over, the times of stop operation because of freeze protection
will be cleared. If turn off the unit or switch to fan/heating
mode, malfunction and times of malfunction is eliminated
immediately.
5.3.2.9
Overload protection
(1) Overload protection under cooling mode: if
T
a5 . 5[
≤ T
\ \
, the unit stops
operation because of overload in cooling; if
T
\ \
<
T
a5 5Z]\b . 5[
and the compressor has
stopped for 3min, the complete unit can resume operation.
(2) Under cooling mode, if
T
a5 5Z]\b . 5[
≤
T
\ \
, the frequency of compressor may increase or
decrease;
(3) Overload protection under heating mode: if
T
a5 . c[
≤ T
\
, the unit stops
operation because of overload in heating; if
T
\
<
T
a5 5 Z]\b . c[
and the compressor has
stopped for 3min, the complete unit can resume operation.
(4) Under heating mode, if
T
a5 5 Z]\b . c[
≤
T
\
, operation frequency of compressor may increase
or decrease;
(5) If the unit is stopped because of overload protection for 6
times successively, it cannot resume operation automatically
and the malfunction will be displayed continuously, which can
only be resumed by turning the thermostat to OFF or cooling
mode. During operation, if operation time of compressor is
over, the times of stop operation because of overload
protection will be cleared. If turn the thermostat to OFF or
switch to fan/cooling mode, malfunction and times of
malfunction is eliminated immediately.
5.3.2.10 Discharge temperature protection of compressor
(1) If
T
.Z c[
≤ T
c[
, the unit stops
operation because of discharge protection; if
T
c[
<
T
5 Z]\b .Z c[
and compressor has stopped for
3 min, the complete unit can resume operation;
(2) If
T
5 Z]\b Z c[
≤ T
c[
, operation
frequency of compressor may decrease or increase;
(3) If the unit is stopped because of discharge protection of
compressor for 6 times successively, it cannot resume
operation automatically, it can only be resumed by pressing
ON/OFF button. During operation, if operation time of
compressor is over, the times of stop operation because of
discharge protection will be cleared. If turn off the unit, or
switch to fan mode, malfunction and times of malfunction is
eliminated immediately.
5.3.2.11 Current protection function
(1) If 13A
≤
I
d \
, operation frequency of compressor may
decrease or increase;
(2) If 17A
≤
I
d \
, the system will stop operation because of
overcurrent; the complete unit can resume operation only
after the compressor stops for 3min;
(3) If the unit is stopped because of overcurrent for 6 times
successively, it cannot resume operation automatically, it can
only be resumed by turning thermostat to OFF setting. During
operation, if operation time of compressor is over, the times
of stop operation because of overcurrent protection will be
cleared.
5.3.2.12 Voltage drop protection
During operation of compressor, if the voltage is decreasing quickly, the
system may stop operation and voltage drop malfunction is caused.
3min later, the system will be restarted up automatically.
5.3.2.13 Communication malfunction
When it has not received the correct signal from indoor unit from 3min,
the unit will stop operation; communication malfunction is eliminated
and compressor has stopped for 3min, the complete unit can resume
operation.
5.3.2.14 IPM (Intelligent Power Model) protection
After compressor is turned on, if the overcurrent happens for IPM, or
control voltage is too low because of abnormal causes, IPM will detect
module protection signal immediately. Once it detected the module
protection signal, the unit will stop operation because of module
protection. If module protection is resumed and compressor has
stopped for 3min, the complete unit will resume operation. If the unit is
stopped because of module protection for 3 times successively, the unit
cannot resume operation automatically unless thermostat is turned to
OFF setting. If the operation time for compressor is over, the times of
stop operation because of module protection will be cleared.
5.3.2.15 Overheat protection of module
(1) If
T
5 Z]\b[ .Z \5
≤ T
\5
, the
operation frequency of compressor may decrease or
increase;
(2) If
T
\ Z \5
≤ T
\5
, the system will
stop operation for protection. If
T
\5
<
Содержание COND-09-01
Страница 10: ...10 10 2 CONSTRUCTION VIEWS Figure 9 9 12K dimensions...
Страница 11: ...11 11 Figure 10 18K dimensions Figure 11 24K dimensions...
Страница 13: ...13 13 Figure 14 18K Electrical diagram Figure 15 24K Electrical diagram...
Страница 14: ...14 14 4 2 PRINTED CIRCUIT BOARDS Figure 16 9 12K Circuit board...
Страница 15: ...15 15 Figure 17 18K Circuit board Figure 18 24K Circuit board...
Страница 23: ...23 23 Figure 20 Multiposition configurations Figure 21 Splashguard without front slope...
Страница 27: ...27 7 TROUBLESHOOTING...
Страница 28: ...28 Verify if the temperature sensor is exposed to the sunlight...
Страница 29: ...29 29...
Страница 30: ...30...
Страница 34: ...34 34...
Страница 39: ...39 39 7 5 TROUBLESHOOTING FLOW CHART 7 5 1 Communication malfunction...
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Страница 67: ...67 67 9 COMPONENTS AND REPLACEMENT PARTS 9 1 EXPLODED VUE 9 12K...
Страница 69: ...69 69 9 3 EXPLODED VUE 18K...
Страница 71: ...71 71 9 5 EXPLODED VUE 24K...