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1. WH7016C Thermostat Product Manual Shenzhen Willhi Electronics Co Ltd Tel 0755 29539385 Fax 86 0755 2953 9395 Technical support Engineer Tian Installation opening size Wiring diagram Option Power switch NTC i2 3 4l 5 6 7 8 QE Q 1Q 2I Z QI 12V Load 12V Terminals 1 and 2 Normally opened contact of relay Terminals 3 and 4 Connect the power 12V Terminals 5 and 6 The factory parameter settings of thermostat can be locked after a short circuit the user can not modify Terminals 7 and 8 Temperature connection sensor Note The load refers to the heating or cooling equipment on control Electrical performance Temperature measurement range 50 110 Temperature control range 50 110 Temperature measurement error 0 5 Sensor Type NTC 10K 3435 Control accuracy 1 Working voltage AC DC 12V Working current lt 2W Relay contact point current AC 7A 220V Data storage Yes Working temperature 0 50 Storage temperature 10 60 Key Instructions 1 RST Press RST key to switch on and off press the RST key on the power off state once to turn on on the power on state press the RST key for three seconds and hold on then it will be off 2 SET A Press the SET key once to enter the temperature control setting press A or Y button to adjust press A or V button for three seconds and hold to enter the fast adjusting mode press the SET key again to exit setting mode B Press and hold SET key2. for three seconds to enter the system menu settings press the A or key to select the adjustment menu press SET key once to enter the appropriate parameter settings press A or W to adjust the parameters needed to be modified after being adjusted press the RST key to exit or exit as the system delay for 5 seconds A Up key Vv Down key Operating Instructions LED Status Description The WORK lights at the left side of the screen is used as working indicator lights flashing is to indicate the delay of cooling or heating if the LED is always on it indicates it is on the status of cooling or heating The SET light at the left side of the screen lights is used as setting indicator lights if the LED is always on it indicates it is on the status of setting Function Instructions Press RST key to open the thermostat on the running status press this key for 3 seconds then the thermostat can be turned off Cooling heating function Cooling Mode When the measured temperature is higher than or equal to the set value hysteresis the relay picks up to start the output When the measured temperature below the set value the relay off and close the output Heating mode When the measured temperature is higher than or equal to the set value the relay off turn off the output When the measured temperature below the set value hysteresis the relay picks up to start the output Example for Setting If it is set to heating mode
3. key to adjust the parameters HS means upper limit LS means lower limit For example the upper and lower limits are used to limit the range of control temperature that can be set such as LS is 10 HS 20 then press the SET key to adjust the temperature control it can only be varied between 10 and 20 Menu code selection Symbol Details Setting range Factory Units settings HC Heating H C C cooling D Hysteresis 1 15 5 LS The 50 110 50 minimum set limit HS The 50 110 110 maximum set limit CA Temperature 5 5 0 calibration PT Delay time 0 10 1 Minutes fault tips 1 When the sensor disconnected the screen displays and close the heating wire 2 When the sensor detects the temperature is below 50 degrees the screen displays LLL 3 When the sensor detects a temperature higher than 110 degrees the screen displays HHH Caution for using Cooling heating load must not exceed the output contact capacity or it may result in machine damage and cause a fire Various connecting wire must be well connected with the terminal otherwise it would result in reducing the reliability of machine When connecting the wire please separate power supply relays sensors otherwise it will damage the machine
4. measurements value consistent with the standard temperature the after calibration temperature the before calibration temperature calibration value calibration value can be positive number negative number and 0 Temperature calibration settings Press SET key and hold more than 3 seconds to enter the menu display with A or Y key adjusted to the screen appearing CA code press the SET key to display the temperature calibration settings press A Or Y key to adjust the parameters For example When we measure the probe temperature was 25 degrees it displays 25 degrees as the CA is 0 it displays 26 degrees as the CA is 1 it displays 24 degrees as the CA is 1 This function is generally applied when the probe can not measure directly the measured object For example we place the probe at the outside of a cup to measure its water temperature we need to adjust the CA parameters because of the heat loss of the cup so that the display temperature can be in accordance with cup temperature Delay Protection Funtion In the cooling mode the first power on when the measured value above the set value hysteresis value the machine will not immediately start cooling it needs to set the delay time then the machine can run to start cooling once the interval between two cooling is larger than the delay time the machine immediately starts cooling once the interval between two cooling is less than the delay time the machine mus
5. set the temperature to 25 degrees hysteresis is set to 5 then when the measured temperature is higher than or equal to 25 degrees the relay is off close the output When the temperature is below 20 degrees pick up the relay again to start the output Example for Setting If it is set to cooling mode set the temperature to 25 degrees hysteresis is set to 5 then when the measured temperature is below 25 degrees the relay is off close the output When the temperature is higher than or equal to 30 degrees pick up the relay again to start the output Cooling heating mode setting Press SET key and hold more than 3 seconds to enter the menu display the screen appears HC code press the SET key to display the working mode press the A or Y to adjust the display C means cooling mode H means heating mode Hysteresis function Hysteresis setting limits the maximum interval between the opening and stopping this machine minimum interval between the opening and stopping is 1 the maximum is 15 Hysteresis settings Press SET key and hold more than 3 seconds to enter the menu display with A or Y key adjusted to the screen appearing D code press the SET key to display the hysteresis set value press A Or W key to adjust the parameters Temperature calibration funtion When there is deviation between the measuring temperature and standard temperature use the temperature calibration function make the machine
6. t run the remaining delay time to start cooling The delay time is started to calculate from stopping the machine The delay time of heating mode is as same as the cooling mode Note It is recommended that only the device that use compressor cooling can use the delay start function the user who don t need delay start function please set this parameter to 0 Delay Protection Setting Press SET key and hold more than 3 seconds to enter the menu display with A or Y key adjusted to the screen appearing PT code press the SET key to display the delay setting value then press the A or W key to adjust the parameters Upper and lower limit functions The setting of HS and LS limit the set range of control temperature point for example HS is set to 15 LS is set to 10 the control temperature can only be adjusted between 10 and 15 when the control temperature to 10 then press Ww key the display will remain on the status of 10 and not decrease when the control temperature to 15 then press A key the display will on the status of 15 and not incease If the set point outside this range it needs to firstly change the value of HS and LS then it can be achieved Upper and lower limit settings Press SET key and hold more than 3 seconds to enter the menu display with A or Y key adjusted to the screen appearing HS or LS code press the SET key to display the upper or lower limit set value Then press A or V
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