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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.

 

● 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.

4.7 Defrost in the heating operation

 

● 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.

5.  MALFUNCTION CODE OF OUTDOOR UNIT

Table 5-1 (8KW)

No.

Fault or protection type

Recovery mode

Error code

1

Module board stop abnormally

Recoverable

EE

2

Communication error between indoor and outdoor unit

Recoverable

E2

3

Outdoor heat exchanger temperature sensor (T3) error or outdoor ambient 

temperature sensor (T4) error

Recoverable

E4

4

Input voltage protection

Recoverable

E5

5

DC fan protection

Recoverable

E6

6

Discharge pipe temperature sensor error

Recoverable

E7

7

EEPROM mismatch

Unrecoverable

E9

8

Compressor parameters mismatch

Unrecoverable

E.9.

9

E6 error occurs more than six times in an hour.

Unrecoverable

Eb

10

PFC error (reserved)

Recoverable

EF

11

Heat exchanger temperature sensor(reserved)

Recoverable

EH

12

Cooling ambient temperature is below -5 degrees Celsius

Recoverable

EP

13

Communication fault between main board and module board

Recoverable

H0

14

M-Home mismatch (reserved)

Recoverable

HF

15

L0 error occurs three times in one hour.

Unrecoverable

H4

16

Number of indoor units decreased or increased error

Recoverable

H7

17

IPM module protection

Recoverable

L0

18

DC bus low voltage protection

Recoverable

L1

19

DC bus high voltage protection

Recoverable

L2

20

MCE error (reserved)

Recoverable

L4

21

Zero speed protection

Recoverable

L5

22

Phase sequence error

Recoverable

L7

23

Compressor over-current protection

Recoverable

LA

24

Compressor current sampling circuit fault (reserved)

Recoverable

LC

25

Compressor start-up error (reserved)

Recoverable

LH

26

Radiator surface high temperature protection

Recoverable

PL

27

System high voltage protection (reserved)

Recoverable

P1

28

System low voltage protection

Recoverable

P2

29

Over-current protection

Recoverable

P3

30

Discharge temperature (T4) protection

Recoverable

P4

31

Outdoor heat  exchanger temperature(T3) protection

Recoverable

P5

32

Typhoon protection

Recoverable

P8

33

T2 indoor unit  evaporator temperature protection

Recoverable

PE

Содержание MDV-V100W/DN1

Страница 1: ...g our air conditioner Before using your air conditioner please read this manual carefully and keep it for future reference Mini VRF C Series Owner s Manual MDV V80W DN1 C MDV V100W DN1 C MDV V120W DN1 C MDV V140W DN1 C MDV V160W DN1 C ...

Страница 2: ...gerant pipe connector NOTE All the pictures in this manual are for explanation purpose only They may be slightly different from the air conditioner you purchased depend on model The actual shape shall prevail 16kW complying with IEC 61000 3 12 Fig 1 ...

Страница 3: ...s the button of the remote controller with a hard pointed object The remote controller may be damaged Never replace a fuse with that of wrong rated current or other wires when a fuse blows out Use of wire or copper wire may cause the unit to break down or cause a fire It is not good for your health to expose your body to the air flow for a long time Do not insert fingers rods or other objects into...

Страница 4: ... effectiveness of machine and then try to open the indoor units at different time The outdoor unit window shades should be periodic cleaning in case of being jammed This window shapes is heat dissipation outlet of components if being jammed will cause the components shorten their service life spans because of overheated for a long time The temperature of refrigerant circuit will be high please kee...

Страница 5: ...outlet position and set the fan speed to High 4 OPERATION AND PERFORMANCE 4 1 Protection Equipment This Protection Equipment will enable the Air Conditioner to stop when the Air Conditioner is to be directed running compulsively When the Protection Equipment is activated the Operation Indicator still lights while the Air Conditioner is not running But the Check Indicatior Lights The protection equ...

Страница 6: ... board stop abnormally Recoverable EE 2 Communication error between indoor and outdoor unit Recoverable E2 3 Outdoor heat exchanger temperature sensor T3 error or outdoor ambient temperature sensor T4 error Recoverable E4 4 Input voltage protection Recoverable E5 5 DC fan protection Recoverable E6 6 Discharge pipe temperature sensor error Recoverable E7 7 EEPROM mismatch Unrecoverable E9 8 Compres...

Страница 7: ...h reserved Recoverable HF 15 L L0 L1 fault occurs three times in one hour Unrecoverable H4 16 The fault is increased or reduced on the IDU Recoverable H7 17 IPM protection Recoverable L0 18 DC bus low voltage protection Recoverable L1 19 DC bus high voltage protection Recoverable L2 20 MCE error Recoverable L4 21 Zero speed protection Recoverable L5 22 Compressor phase sequence error Recoverable L...

Страница 8: ...speed protection Recoverable L5 20 Compressor phase sequence error Recoverable L7 21 Protection for compressor speed change 15Hz Recoverable L8 22 Protection for the difference between the set speed and the running speed of the compressor 15Hz Recoverable L9 23 Radiator surface temperature protection Recoverable PL 24 System high pressure protection Recoverable P1 25 System low pressure protection...

Страница 9: ...shah sound is heard when the system is in cooling operation or at a stop When the drain pump optional accessories is in operation this noise is heard A pishi pishi squeaking sound is heard when the system stops after heating operation Expansion and contraction of plastic parts caused by temperature change make this noise Symptom 4 2 Indoor unit outdoor unit A continuous low hissing sound is heard ...

Страница 10: ...arge refrigerant Vacuum and recharge refrigerant Maintenance or change compressor Install manostat Find reasons and solution Low cooling effect Outdoor unit and indoor unit heat exchanger is dirty The air filter is dirty Inlet outlet of indoor outdoor units is blocked Doors and windows are open Sunlight directly shine Too much heat resource Outdoor temp is too high Leakage of refrigerant or lack o...

Страница 11: ...apse of time Check whether the timer operation has come to an end when the TIMER OFF is indicated on the display The air conditioner operation will stop up to the set time The TIMER ON indicator goes off after a lapse of certain time Check whether the timer operation is started when the TIMER ON is indicated on the display Up to the set time the air conditioner will automatically start and the app...

Страница 12: ......

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