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8.1.2 Failure information and code

In case the unit runs under abnormal condition, failure 

protection code will display on both control panel and wired 

controller, and the indicator on the wired controller will flash 

with 5Hz. The display codes are shown in the following table: 

E0

E1

E2

E3

E4

E5

E6

E7

E8

E9

EA

Eb

EC

Ed

EF

P0

P1

P2

P3

P4

P5

No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

Code

Reason

Water flow detection error (The third time)

Power phase sequence error

Communication error

Total water outlet temperature sensor error

Pipe temperature sensor in condenser A error 

Pipe temperature sensor in condenser B error 

Outdoor ambient temperature sensor error or power supply protection 

Low pressure protection System A

Low pressure protection System B

High pressure or air discharge temperature protection in system B

Current protection in system A

Current protection in system B

Condenser high temperature protection in system A 

Condenser high temperature protection in system B 

System freeze-proof protection

(Reserved failure code)

(Reserved failure code) 

Wire control did not found out any on-line module unit.

(Reserved failure code)

Water flow detection error (The first and second times)

High pressure or air discharge temperature protection error in system A

Main unit detect that auxiliary unit’s quantity have decreased.

Freeze-proof temperature sensor 1 in heat exchanger error

Outlet water temperature sensor in heat exchanger error 

P6

P7

P8

Pb

Low ambient temperature drive-up protection

PA

PC

PE

1-hour consecutive 3-times PE protection

Inlet water temperature sensor error

P9

Protection of outlet and inlet water temperature difference 

Low-temperature protection of heat exchanger

F1

F2

Wire controller failure

29

30
31

(Reserved failure code)

8.1.3 Ordinary displayed data

a. Ordinary displayed data are displayed in all display pages.

b. If the unit system is under running state, i.e. one or more than 

one modular unit is under running operation, there will be a 

dynamic display of          . If the system is under OFF state, 

there is no display.

c. If the communication with the main unit modular unit is 

normal, it displays           . There will be no display under the 

failure state of main unit communication connection. 

d. If it is under the host computer network control, 

Network ON

Network ON

 

displays, otherwise there is no display.

e. If it is under wired controller locked or button locked state, it 

displays       the lock mark. There will be no display after the lock 

is unlocked. 

8.1.4 Treatment of display data

The data display area is divided into Up area and Down area, 

with two groups of two-digit half 7-segment digital display, 

respectively.

a.Temperature display

Temperature display is used for displaying the total outlet water 

temperature of unit system, outlet water temperature of heat 

exchanger, condenser pipe temperature T3A of system A, 

condenser pipe temperature T3B of system B, outdoor environ-

mental temperature T4, and setting temperature Ts, with 

allowable data display scope -15

ć̚

70

ć

. If the temperature is 

higher than 70

ć

, it is displayed as 70

ć

. If there is no effective 

date, it displays “——” and indication point 

ć

 

 is on.

b. Current display 

Current display is used for displaying modular unit system A 

compressor current IA or system B compressor current IB, with 

allowable display scope 0A~99A. If it is higher than 99A, it is 

displayed as 99A. If there is no effective date, it displays “——” 

and indication point 

A

 is on.

c. Load rate display

Load rate display is used for displaying the total load rate of unit 

system or the modular unit system A compressor, with allowable 

display scope 0%~100%; the load rate of the fixed speed 

compressor is only 0% (shutdown) or 100%(startup).

d. Failure display

It is used for displaying the total failure warning date of unit or 

that of modular unit, with failure display scope E0~EF, E 

indicating failure, 0~F indicating failure code. “E-“ is displayed 

when there is no failure and indication point 

is on at the same 

time.

e. Protection display

It is used for displaying the total system protection data of unit or 

the system protection data of modular unit, with protection 

display scope P0~PF, P indicating system protection, 0~F 

indicating protection code. “P-“ is displayed when there is no 

failure and indication point 

is on at the same time.

f. Unit number display

It is used for displaying the address number of the currently 

selected modular unit, with display scope 0~15 and indication 

point 

#

 is on at the same time.

 

 

 

 

 

 

 

 

O&I manual

22

Table 8-1

Содержание ICHS-420KC-5

Страница 1: ...AIR COOLED MODULAR CHILLER MAN I IOCH35 0715 intensity mx INSTALLATION OWNER S MANUAL ICHS 420KC 5 35 TONS...

Страница 2: ...MAIN PARTS OF THE UNIT Air outlet Air outlet Air inlet Air inlet Air inlet Air inlet NO NAME Top cover NAME Condenser Compressor Evaporator NO Electric control box Water outlet Water inlet Compressor...

Страница 3: ...compact structure and easy transportation and lifting and in the meanwhile it also saves facilities including cooling tower cooling pump and so on for the user and reduces installation cost The units...

Страница 4: ...nd could result in cutting injuries 1 O I manual Never inspect or service the unit by yourself Ask a qualified service person to perform this work Do not dispose this product as unsorted municipal was...

Страница 5: ...chemicals to become deposited in the unit which could endanger the health of those who are hypersensitive to chemicals Do not place appliances which produce open fire in places exposed to the air flow...

Страница 6: ...e people due to transfer of noise and vibration The base of the unit is provided with installation holes which can be used to connect the unit and the foundation firmly 3 1 7 In case of installation o...

Страница 7: ...3 1 and the space between adjacent modular units should not be less than 300mm the installation can also follow the direction B and C as shown in Fig 3 2 the spaces between the unit and the obstacle a...

Страница 8: ...therwise the performance of the unit will decline c The inlet pipe of the evaporator must be provided with a target flow controller to realize flow break protection for the unit Both ends of the targe...

Страница 9: ...zing pump is started up in winter For the water pipeline network including filters and heat exchangers dreg or dirt may seriously damages the heat exchangers and water pipes The installation persons o...

Страница 10: ...ow and three way resistance two way resistance or three way resistance as well as filter resistance H4 the longest terminal resistance 4 7 2 Installation the pump a The pump should be installed at the...

Страница 11: ...imal flow value prior to ex factory They should not be adjusted below the ex factory setting value or they may suffer failure After installing flow switches please press the flow switch lever several...

Страница 12: ...its with 2 modules 8 module units can be connected at mostly No 1 unit No 0 address main unit No n unit n 8 No n 1 unit No 2n 3 address No 2n 1 address Fig 4 8 less than 8 modules 9 O I manual No 1 ad...

Страница 13: ...HU DUH UHTXLUHG DQG FRQQHFWHG RQ WKH PDLQ PRGXOH 7KH XQLW FDQ EH VWDUWHG XS WKURXJK WKH ZLUHG FRQWUROOHU RQO DIWHU DOO DGGUHVVHV DUH VHW DQG WKH DIRUHPHQWLRQHG LWHPV DUH GHWHUPLQHG The ZLUHG FRQWUROOH...

Страница 14: ...so on must be suppressed with standard resistance capacitance suppressors to avoid electromagnetic interference thus leading to failure of the unit and its controller and even damages to them 5 3 10 A...

Страница 15: ...nnection of control wires of pump the control wires of AC contactor of pump must pass the connection terminals p1 and P2 of the main unit as shown in Fig 5 3 Step 12 The connection way of the wire con...

Страница 16: ...E4 Under refrigeration mode and heating mode conduct adjustment according to the magnitude of unit outlet water temperature Adjustment range of constant speed capability ON and OFF Total outlet water...

Страница 17: ...ng and heating capability adjustment pump control auxiliary electric heater control total effluent temperature detection and water flow switch detection COM O 485 communication port fault code E2 high...

Страница 18: ...ng the auxiliary electric heater Attention Under heating mode when the main unit board detects total water outlet temperature to be lower than 45 the switch will be closed and the auxiliary electric h...

Страница 19: ...r flow specified in Table 7 1 6 2 Check item table after installation Checking item Description Yes No Whether installing site is meet for requirements Whether water system is meeting for requirements...

Страница 20: ...electric control schematic diagram or the faults caused by water breaking while the unit is in operation should be the user s responsibility Do not re start the unit within 10 min after the unit is s...

Страница 21: ...e which flashes with 2HZ and then adjust the minute by pressing Page up temperature and Page down temperature If no adjustment is made 8 seconds after entering the time setting state the time setting...

Страница 22: ...manual settings mode Press ADD and ADD keys to select how many unit is launch into running Press OK key to save the settings Unit will run after press ON OFF key 3 minutes later Turn off the unit Whe...

Страница 23: ...the system Eliminate incrustant Eliminate incrustant Check water temperature See Excessive high air suction pressure Check chilling water temperature Refrigerant leakage or insufficient refrigerant vo...

Страница 24: ...voltage protection Reference to mention in above the parts of air suction and discharge pressure error Replace damaged assembly Find out the error type and carry out the corresponding measure to settl...

Страница 25: ...ormal it displays There will be no display under the failure state of main unit communication connection d If it is under the host computer network control Network ON Network ON displays otherwise the...

Страница 26: ...s needed to wait for the up to date data of the modular unit received and selected by wired controller Before receiving the data the wired controller only displays on the data display Up area and the...

Страница 27: ...ressure Connection must be renewed after injection is completed Never inject oxygen acetylene or other flammable or poisonous gas to the refrigeration system at leakage detection and air tight test On...

Страница 28: ...k temperature of chilled water or hot water Inlet Outlet 6 check air temperature of air side heat exchanger Inlet Outlet 7 Check refrigerant suction temperature and superheating temperature Refrigeran...

Страница 29: ...utdoor temperature Compressor Air temperature of air side heat exchanger Temperature of chilled water or hot water Current of cooling water pump or hot water pump Dry bulb Wet bulb Indoor temperature...

Страница 30: ...kPa Fin coil model Shell tube type heat exchanger Control of wired controller manual auto startup running state display failure alert etc High or low pressure switch freeze proof device water flow vol...

Страница 31: ...M1 A A Heat1A COMP1A U V W KM2 COMP1B KM3 COMP2A KM4 Heat2B COMP2B Y G U V W U V W U V W Y G Y G Y G KM2 KM1 KM6 KM5 KM4 KM3 A B C A A B C A A B C A A B C Heat1B Heat2A KM5 A FAN1A U V W KM6 FAN1B KM7...

Страница 32: ...VKRX OG EH VKRUWH U WKDQ P Black Yellow Gray Query Fault 1RWHV 7K H ZLULQ J GLDJ UDP RI DX LO LDU KHDWH U DQG SXPS L V MXVW IRU UHIHUHQF H SOHD VH IROOR Z WKH LQ VWUXFWLRQ V RI FRUUH VSRQGLQJ DX LOLD...

Страница 33: ......

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