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Smart Wifi Thermostat 

                                                                                             

Reference No.:HTW-HT03 Series 

 

                                                         

 

- 2 -

                                                                            Version 2018-1.0                                       

 
 

Power Supply 

95~240Vac, 50/60Hz 

Sensor 

NTC3950, 10K 

Current Load 

3A(-3A, -NV application) 

Temperature Accuracy 

±

0.5°C or 

±

1

 

16A(-16A application) 

Set-Point Range 

5~35°C 

Storage Temp. 

-5 ~ 45 °C 

Display Temp. Range 

5 ~ 99°C 

Power Consumption 

< 1.5W 

Timing Error   

< 1% 

Housing Material 

PC +ABS ( Fireproof) 

Installation Box 

EU or Standard Electric Box 

Wires on Terminals 

Wire 2 x 1.5 mm

2

 or 1 x 2.5 mm

2

 

Protection Class 

IP20 

Operating Buttons 

Capacitive Touch Buttons 

 
 
 
 
 
 
 
 
 
 
 
 

 

Make sure the power is OFF! Try turning ON your heating/cooling system by changing the temperature. If 
you can’t get the system to turn ON in 5 minutes, you’ll know the power is OFF. 

 

Take off the installation faceplate by grasping and gently pulling, then connect voltage supply/load 
output/external sensor(if with) wires respectively to appropriate terminals. 

 

Fix the installation plate onto the electric junction box with screws packed in the box. 

 

Fasten the thermostat display part and the installation faceplate through the groove.(Installation process 
completed) 

 
 

 
 
 
 
 
 
 
 
 
 
 
 
 

WARNING:      RISK  OF  ELECTRICAL  SHOCK.

  Disconnect  power  supply  before  making  electrical  connection.  Contact 

with  components  carrying  hazardous  voltage  can  cause  electrical  shock  and  may  result  in  severe  personal  injury  or 

death. 

Dimensions and Display 

Specification 

Installation 

Summary of Contents for HTW-HT03 Series

Page 1: ...ified Chinese traditional Chinese Holland Portuguese Vietnamese Arabic Korean Snap In Easy Installation Fit for EU Standard Junction Electric Box Easily Work with Amazon Alexa Google Assistant IFTTT Group Control in 1 App Consise Design Ordering Information HTW HT03 Smart Wifi Thermostat Code Application 3A Water Heating 3A NC NO Com output terminals 16A Electric Underfloor Heating 16A L N line vo...

Page 2: ...ing system by changing the temperature If you can t get the system to turn ON in 5 minutes you ll know the power is OFF Take off the installation faceplate by grasping and gently pulling then connect voltage supply load output external sensor if with wires respectively to appropriate terminals Fix the installation plate onto the electric junction box with screws packed in the box Fasten the thermo...

Page 3: ...tc Increase or decrease parameters by using these icons Press once more to confirm and switch to next relevant parameter setting 3 Touch the icon again to set the weekday schedule settings appear 1 2 3 4 5 will show along the top of the screen Likewise use and becomingly to adjust the time temperature for the 1 6 period per day Repeat the above process to set the weekend schedule Press once more t...

Page 4: ...r limit the temperature OU External sensor to control or limit the temperature Al internal sensor to control temperature and external sensor to limit the floor temperature Notes Please make sure configure the right sensor The thermostat display Err If wrongly configured In for model 3A NV Al for model 16A 5 Min set point limit 5 C 15 C 05 6 Max set point limit 15 C 45 C 35 7 Temperature Display 00...

Page 5: ... fig2 2 Select your region and type in your phone No or email fig 2 3 then you may get a verification code Type in your password and confirm fig 2 4 to complete your registration If you already have an account please just log in On the thermostat During power off status press and hold the arrow icon for 8 sec until the connecting icon appears on Wifi Connection Step 1 Download and Install APP Step ...

Page 6: ...t be supported or the wi fi signal is weak or thermostat can not be connected as above steps please try this AP mode connection process On the thermostat During power off status press and hold the arrow icon for 8 sec until the connecting icon appears on the thermostat screen and flashes once a sec press and hold the arrow icon for 8 sec again the icon will flash once per 3 sec fig 4 1 indicates co...

Page 7: ...onomy set point 20 C in default Thermostat runs in Manual Mode Thermostat runs in Programmable Mode When thermostat runs in programmable mode click the schedule setting fig 5 1 to switch to the schedule page fig 5 2 where you can simply configure the weekly programmable 5 2 schedule up to 6 period each day Workdays Monday Friday Weekend Saturday and Sunday Click Complete to save the configuration ...

Page 8: ...thod 1 Click Share with Familay as fig 4 4 Method 2 Click Profile Sent Add Switch on the device Share with New Member Type in the telephone number you would like to share with Method 3 Home page of the device Menu as fig 6 1 Device Sharing Add Type in the telephone number you would like to share with Click Profile Integration Select amazon echo Google Home IFTTT Use Now Details as below fig 7 1 an...

Page 9: ...ck if the terminals between LCD panel and Relay Power Module is loosen 2 Without output but display works Use a new LCD panel or new Relay Power Module for Replacement 3 Room Temp on display is not correct Do temperature calibration in parameter in ISU 4 Heating system does not respond Set the mode to heating by press ing the M button Make sure the temperature is set above the room temperature Mak...

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