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CW-7800 Series 

The default password 168 must be kept well. The user menu can not be accessed if 

the password is forgotten and no backup password is available. 

Under user menu, in parameter items interface, press ²  or ¼  to switch the 

items. If the parameters need to be modified, press Set-button to enter into 

parameter values and press ²  or ¼  to adjust it. Save the values and return to 

parameter interface by pressing Set-button and press Quit-button to quit the user 

menu. If there is no more action within 15 sec, it will automatically exit modifying 

status with modified parameters saved. 

4

Check the history failure records: under normal operation condition, press 

Set-  button and ²  for 5 sec to access password input interface. Input password 

“123” and confirm by pressing Set-button, it will be in failure view status if the 

password is correct, if not, it will quit. When the system is under failure records 

viewing, it will show the first failure record and code. Press ²  or ¼  can look over 

the failure records and press Quit-button to quit the failure viewing status. 

(5) Restore factory settings: under normal operation condition, press and hold 

Set-button and 

  Power-button for 10 sec to have the password input interface 

popped up then input password “615” to enter into administrator setting 

parameters restoration function, and it will display “RECOVERY SUCCESS” and 

turn to operation condition after 2 sec. If the password is incorrect, it will quit the 

password input interface and turn to operation condition. 

(6) Unit operation condition query: the screen will display the operation 

conditions of the compressor, water pump and the indoor exhaust temperature 

parameters, etc. by pressing Quick Set-button and ²  at the same time and release 

them. Press ²  or ¼  for page turning and it will automatically exit after displaying 

for 5 sec. 

(7) Clock adjustment: under normal operation condition, press Quick 

Set-button for 5 sec to access clock adjustment interface with time/year flashing. 

Press ²  or ¼  to adjust year and confirm by pressing Quick Set-button; with time 

flashing, press    ²  or ¼  to adjust hour and confirm by pressing Quick Set-button; 

with minute flashing, press    ²  or ¼  to adjust minute and save the clock setting by 

pressing Quick Set- button. 

(8) Language switching: the system default language is Chinese. For switching 

to English, press Lang-button and the system will change the Chinese interface to 

English interface as default language. 

(9) Forced refrigeration: under normal operation condition, press ²  or ¼  at the 

same time for 5 sec to activate forced refrigeration function. Press Power-button 

can    stop the machine and cancel forced refrigeration function. 

   

Содержание CW-7800 Series

Страница 1: ...CW 7800 INDUSTRIAL CHILLER USER MANUAL...

Страница 2: ...tions 3 2 Contour and parts introduction 4 3 Installation 5 4 Unit introduction and parameters adjustment 6 5 Conductivity meter Optional 12 6 Alarm signal and output terminal 12 7 Specifications 13 8...

Страница 3: ...chiller without water in the storage water tank The new machine is packed after draining whole water in the tank so please make sure the tank has water inside before machine starting otherwise it s ea...

Страница 4: ...TER INLET L WATER OUTLET L WATER LEVEL GAUGE WATER DRAIN WASTE WATER DRAIN OVERFALL GAP WATER OUTLET H WATER INLET H AIR OUTLET FILTER LOW TEMP PUMP LOW PRESSURE HIGH PRESSURE POWER ALARM SIGNAL OUTPU...

Страница 5: ...l automatically control the working conditions of the compressor magnetic valve fans and other parts based on the set controlling parameters 4 As it takes a longer time to start over the compressor an...

Страница 6: ...e chiller by pressing the Power button for 3 sec while other operations can be completed by short press 2 User parameters quick adjusting under normal operation condition press Quick Set button to set...

Страница 7: ...up then input password 615 to enter into administrator setting parameters restoration function and it will display RECOVERY SUCCESS and turn to operation condition after 2 sec If the password is inco...

Страница 8: ...tant temp mode 6 F6 Temp difference values 15 5 2 7 F7 Cooling hysteresis 0 1 3 0 1 0 1 resolution ratio 8 F8 Way of control 0 1 1 0 Constant 1 Intelligent 9 F9 The highest set temp F10 1 40 35 Consta...

Страница 9: ...0 Second 26 F26 External input standby activation delay 0 180 0 Second 27 F27 Conductivity alarm activation setting On off off 28 F28 Ultra high conductivity alarm setting value 0 5 100 10 s cm 39 F2...

Страница 10: ...on part runs under usual procedures Automatic clearing E07 High temp system ultra high water temp alarm E07 shown with alarm sound Heater of the high temp system shut down Automatic clearing E08 Wrong...

Страница 11: ...usual procedures Automatic clearing E18 Ultra low conductivity alarm E18 shown with alarm sound Each refrigeration part runs under usual procedures Automatic clearing E19 Ultra low water level alarm...

Страница 12: ...the chiller it has alarm protection function 1 Working condition table of alarm signal Note The flow alarm is connected to the normally open relay and normally closed relay contacts requiring operatin...

Страница 13: ...1705Btu h 63085Btu h 0 5KW 18 5KW 431Kcal h 15948Kcal h Refrigerant R 22 R407C Refrigerant charge 4700g Precision 1 Reducer thermostatic expansion valve Protection Overcurrent protection for compresso...

Страница 14: ...Water circulation pipes are blocked or a pipe bending deformation Check water circulation pipe Ultra high temperature alarm controller displays E05 or E07 Blocked dust gauze bad thermolysis Unpick and...

Страница 15: ...CW 7800 Series CW 7800 15...

Страница 16: ...CW 7800 Series 17 18 19 20 24 24 25 26 16...

Страница 17: ...CW 7800 Series 1 2 10 3 50Hz 60Hz 4 NORMAL NORMAL 5 100cm 50cm 6 7 8 17...

Страница 18: ...CW 7800 Series 18...

Страница 19: ...CW 7800 Series 1 2 3 4 1 E8 2 3 4 5 5 6 CW 7800 25 20 7 19...

Страница 20: ...CW 7800 Series 1 MODBUS 485 1200 2 5 3 4 5 1 1 Lang Set Quick Set Quit 2 quick set quick set quick set quick set quit 15 20...

Страница 21: ...CW 7800 Series 3 set 5 168 set 168 set set quit 15 4 set 5 123 set 1 quit 5 set 10 615 Set 2 6 quick set 5 7 quick set 5 quick set quick set quick set 8 Lang Lang 9 5 21...

Страница 22: ...1 20 1 11 F11 40 50 45 12 F12 1 20 10 13 F13 1 20 15 14 F14 0 30 5 15 F15 0 180 10 16 F16 0 180 5 17 F17 0 180 2 18 F18 0 10 0 8 0 1 19 F19 0 180 5 20 F20 0 180 30 21 F21 0 180 30 22 F22 On off On 23...

Страница 23: ...CW 7800 Series 3 4 E00 E0 E01 E1 E02 E2 E03 E3 E04 E4 E05 E5 E06 E6 E07 E7 E08 E8 E09 E9 E10 E10 E11 E11 E12 E12 E13 E13 E14 E14 E15 E15 E16 E16 E17 E17 E18 E18 E19 E19 E20 E20 E21 E21 23...

Страница 24: ...CW 7800 Series 1 0 1 20 2 3 1 5A 300V H1 H2 H1 H3 E00 E01 E08 E09 E10 E12 E13 E15 E02 E03 E11 E14 E16 E17 E18 E20 E21 E04 E05 E06 E07 E19 24...

Страница 25: ...3P 380V 50Hz 9 16A 7 15KW 9 54HP 1705Btu h 63085Btu h 0 5KW 18 5KW 431Kcal h 15948Kcal h R 22 R407C 4700g 1 0 75KW 1 1 KW 15 135L Rp 1 2 Rp 1 53M 53M 70 L min 116L min 460Kgs 575Kgs 168 X 82 X 178 cm...

Страница 26: ...CW 7800 Series E01 E02 E01 E02 E05 E07 E03 40 26...

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