CW-7800 Series Thank using machine from GUANGZHOU TEYU ELECTROMECHANICAL CO., LTD. Please read the installation instructions carefully before installing and operating and keep it properly. This installation instructions is not a quality assurance. GUANGZHOU TEYU ELECTROMECHANICAL CO., LTD reserves the right to the interpretation of correction of typographical errors, improper mentioned information and product improvement.
CW-7800 Series <2> Contour and parts introduction TEMPERATURE CONTROLLER HIGH TEMP PUMP LOW TEMP PUMP CONDUCTIVITY METER LOW PRESSURE POWER SWITCH HIGH PRESSURE ALARM SIGNAL OUTPUT PORT POWER AIR OUTLET AIR INLET WATER INLET (H) WATER OUTLET (H) WATER INLET (L)
6. Adjust parameters of temperature controller. CW-7800 series use an new intelligent controller. It works in defaulted constant temperature control mode for the low temperature end with water temperature set at 25℃...
CW-7800 Series <4> Unit introduction and parameters adjustment (1) The unit use wire LCD temperature controller to realize more precise temperature control and stronger capacity of resisting disturbance. It supports MODBUS-485 communication with transmission distance up to 1.2km; (2) It has water line anti-icing function. Under standby condition, it functions when the room temperature is below 5℃;...
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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.
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CW-7800 Series 2. Detailed parameter setting is as below table: Factory Order Code Set item Range Remark setting Intelligent mode / Set temp. F7~F6/-20~40 Constant temp mode Temp. difference values -15~5 0.1 resolution Cooling hysteresis 0.1~3.0 ratio 0 Constant, 1 Way of control 0~1...
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CW-7800 Series Flow alarm delay 0~180 Second 0.1 resolution Heating hysteresis 0~10 ratio Water pump stop delay 0~180 Second Startup delay 0~180 Second Compressor activate 0~180 Second protection Turn on setting of phase On off sequence protection Turn on setting of external...
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CW-7800 Series 4. Failure code table: Failure Elimination Description Alarm phenomenon Alarm action code method Automatic clearing Communication E00 shown with alarm after mainboard and None failure alarm sound operation panel are connected well The compressor, condenser fans and Low temp. system flow E01 shown with alarm heater of the high/low temp.
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CW-7800 Series Low temp. system The water pump, compressor, E15 shown with alarm water temp. sensor condenser fans and heater of the Automatic clearing sound failure alarm high/low temp. system shut down High temp. system E16 shown with alarm High temp. system water pump and water temp.
CW-7800 Series <5> Conductivity meter(Optional) (1) This machine is equipped with conductivity meter to monitor deionized water, detection range from 0.1-20µS. (2) Alarm signal output for deionized water of over standard conductivity values (optional). (3) Alarm indicating for deionized water of over standard conductivity values (optional).
CW-7800 Series <8> Simple troubleshooting Failure Failure Cause Approach Check and ensure the power interface Power cord is not plugged in place and the power plug is plugged in place and in good contact. Open the electric box cover, check the...
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