Advertisement
4.5 Cooling and heating operation
The indoor unit of the intelligent inverter centralized air
conditioner can be controlled solely, but the indoor unit in the
same system can not run cooling and heating at the same time.
When the Cooling and Heating operation confront with each
other, the Indoor Unit which are running on Cooling Mode would
stop and there will be Standby or No Priority displayed in the
Control Panel. Those Indoor Units which are running on Heating
Mode will run continuously.
If the Air Conditioner Administrator has set running mode,
then the air conditioner can not run on modes other than the
presetted.Standby or No Priority will be displayed in the
Control Panel.
4.6 Features of heating operation
Warm air will not be blown out immediately at the beginning of
the heating operation, 3~5 minutes ago (depends on the indoor
and outdoor temperature), until the indoor heat exchanger
become hot, then blows out warm air.
5
MALFUNCTION CODE OF OUTDOOR UNIT
Table 5-1 (8KW)
No.
1
Module board stop abnormally
2
Communication error between indoor and outdoor unit
Outdoor heat exchanger temperature sensor (T3) error
3
or outdoor ambient temperature sensor (T4) error
Input voltage protection
4
DC fan protection
5
Discharge pipe temperature sensor error
6
EEPROM mismatch
7
Compressor parameters mismatch
8
E6 error occurs more than six times in an hour.
9
PFC error (reserved)
10
Heat exchanger temperature sensor(reserve d )
11
Cooling ambient temperature is below -5 degrees Celsius
12
Communication fault between main board and module board
13
M-Home mismatch (reserved）
14
L0 error occurs three times in one hour.
15
16
Number of indoor units decreased or increased error
17
IPM module protection
DC bus low voltage protection
18
19
DC bus high voltage protection
20
MCE error (reserved)
21
Zero speed protection
22
Phase sequence error
23
Compressor over-current protection
24
Compressor current sampling circuit fault (reserved)
25
Compressor start-up error (reserved)
26
Radiator surface high temperature protection
27
System high voltage protection (reserved)
28
System low voltage protection
29
Over-current protection
30
Discharge temperature (T4) protection
31
Outdoor heat exchanger temperature(T3) protection
32
Typhoon protection
33
T2 indoor unit evaporator temperature protection
4.7 Defrost in the heating operation
Fault or protection type
4
During operation, the fan motor in the outdoor unit may stop
running under high temperature.
During Fan Operation, if other Indoor Units are running on
Heating Mode, the fan may stop in order to prevent sending
heat wind.
During heating operation, outdoor unit sometimes will frost. To
increase efficiency, the unit will start defrosting automatically
(about 2~10 minutes), and then water will be drained out from
outdoor unit.
During defrosting, both the fan motors in the outdoor unit and
indoor unit will stop running.
Recovery mode
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Unrecoverable
Unrecoverable
Unrecoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Unrecoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Error code
EE
E2
E4
E5
E6
E7
E9
E.9.
Eb
EF
EH
EP
H0
HF
H4
H7
L0
L1
L2
L4
L5
L7
LA
LC
LH
PL
P1
P2
P3
P4
P5
P8
PE
Advertisement
