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Suzhou Lily Tech. Co., Ltd. 

 

[email protected]        www.suzhoulily.com.cn        Page 1, Total pages 4 

 

               

 

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1. Features   

ZL-310A is an electronic thermostat for cooling. The device is ideally fitted to refrigeration equipment for cold 

storage. 

2. Main Function

 

  Temperature measurement                                         

  Temperature display 

  Temperature calibration                                               

  Compressor delay protection   

  Blustering when system warning   

  Sensor problem warning     

  External warning input 

3. Main Specification   

  Temperature Sensor:    NTC                                   

  Setting Range:                      -40

120

 

  Display Range:              -50

130

                       

  Working Temperature:          -10

45

 

  Storage Temperature:    -30

70

                         

  Humidity:        5

85%RH (without dewing) 

  Power Supply:                185 ~ 245VAC 50/60HZ 

  Terminal Wire:    <= 2 * 1.5mm

2

 or 1 * 2.5mm

2

 

  Load Current:          3A 250Vac

Resistive load

  Case:                PC + ABS Fire Proof 

  Protection Degree:          IP30 

4. Operation Instruction 

4.1 Display Indication 

Panel LED Indication 

LED 

On 

Off 

Blinking 

MAX TEMP 

Set max temperature 

Set max temperature 

(to be set) 

 

MIN TEMP 

Set min temperature 

Set min temperature (to 

be set) 

 

COOL 

Compressor on 

Compressor off 

Delay protecting now 

DEFROST 

Defrosting now 

Dropping water ends 

Dropping water now 

Panel Digit Indication 

Three red digits display the measured temperature and warning code. 

Warning Code: 

No. 

Display Code 

Warning Information 

E1 

Room sensor open circuit 

-E1 

Room sensor short circuit 

Hi 

Room temperature exceeds the MAX TEMP 

Lo 

Room temperature exceeds the MIN TEMP 

EE 

Data access error 

Err 

Password error or max/min temperature set invalid 

iA 

External warning 

Frd 

Forced cooling 

UnL 

Restore the default password ”11” 

Summary of Contents for ZL-310A

Page 1: ... Power Supply 185 245VAC 50 60HZ Terminal Wire 2 1 5mm2 or 1 2 5mm2 Load Current 3A 250Vac Resistive load Case PC ABS Fire Proof Protection Degree IP30 4 Operation Instruction 4 1 Display Indication Panel LED Indication LED On Off Blinking MAX TEMP Set max temperature Set max temperature to be set MIN TEMP Set min temperature Set min temperature to be set COOL Compressor on Compressor off Delay pr...

Page 2: ...he parameter code Press SET will show the parameter value Then press or to set this parameters and press SET to return The factory setting password is 11 Exit the Mode Keep depressing SET for three seconds the set parameters will be saved the mode exits Or do not press any key for 30 seconds the mode exits and the set parameters are not saved Parameter Code and Description Table N o Parameter code...

Page 3: ...or U12 3 minutes stop for 30 U12 3 minutes Note If U12 0 system stops when sensor fails 5 4 High temperature and Low temperature warning When the test temperature MAX TEMP U50 and the time reaches to U52 or U53 high temperature warning starts When the test temperature MIN TEMP U51 and the time reaches to U52 or U53 low temperature warning starts 5 5 External input warning There are several ways fo...

Page 4: ...cian Wrong power supply may damage the device and system seriously Try with effort to layout the sensors and switches line apart from inductive load lines and power supply lines The sensors and switches lines are not allowed go with the power supply lines and inductive load lines in a same pipeline and are not allowed to pass near the contactor breaker and the similar Reduce the length of sensors ...

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