hotowell HTW-31-DT12WF Color Touch Heating Thermostat
Introduction
HTW-31-DT12WF is a smart APP controlled WIFI programmable thermostat which works with Amazon Alexa&Google Assistant voice control. According to the present temperature, the thermostat will automatically start or stop the controlled object such as valve, heating floor, heating wall, electric heater etc. This thermostat has an elegant, sleeker design with a 4.3” LCD touch screen ensuring an excellent user experience of temperature control.
Product Features
- WIFI Remote Control, Support both IOS & Android
- 4.3 inch colorful touch screen operation.
- Electric heating
- Adjustable Economy Mode, MAN mode & PRG Mode
- 7 days Programmable
- Over-heating Protection
- Multi-langauge select
- CE, ROHS certificate
Technical Data
| Voltage | 230V, 50/60Hz | Backlight Color |
| Load Current | 16A | Sensor NTC3950，10Kohms at 25℃ |
| Temp. Setting Range | 5~35℃ | Accuracy ± 0.5℃ |
| Ambient | 0~50℃ | Protection Class IP30 |
| Relative Humidity | 85% | Housing ABS to UL94-5 fire retardant plastic |
Screen and Display
Home Screen 
Sub Menu Screen Sub Mode Screen 
7 days Program Setting
Press Menu Button, then press 
, the weekly sehcudle will show on display. Choose one part to edit the schedule 
Press
button, then press
to edit.
Parameter Setting 
| Menu | Description | Range | Default Value |
| 01 | Temp Calibration | -10 ℃ ~10℃ | 0 |
| 02 | Setting Temp Max. | 0 ℃ ~35℃ | 35℃ |
| 03 | Setting Temp Min. | 0 ℃ ~35℃ | 5℃ |
| 04 | Dead Zone | 0 ℃ ~3℃ | 0℃ |
| 05 | NTC Select(Internal, External) | I only, E only, I & E, I or E | I & E |
| 06 | Relay Output | Normal(NO); Inverted(NC) | NO |
| 07 | Min Brightness | 2~100 | 35 |
| 08 | Backlight Time | 15~125 | 30 |
| 09 | Reset | Press right/confirm/reseting… | Press right |
| Software version no. 3148-01-01 | |||
How To Connect with Mobile
- Scan the QR code, and download “Smart Life” APP from google play or app store
- Ensure your smart phone is connected to your home WIFI network
- Install app and register account
- Add device by press + button at top right corner
- Press “Home Appliances II”
- Find “ Thermostat” on the list and press
- Press
on top of screen, then press
- Press “Confirm indicator rapidly blink” on phone
- Wait a moment till connection done. Wifi connection success.
Wiring Diagram(two wirings not compatible) 
Installation
Using a screw driver to open the upper and lower body part, then connect the wiring to terminals tightly, then fix the lower body part into wall with attached screws. 
Dimension (mm)
REFERENCE:
DOWNLOAD MANUALS:
hotowell HTW-31-DT12WF Color Touch Heating Thermostat Installation Guide
hotowell HTW-31-DT12WF Color Touch Heating Thermostat Installation Guide
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