HOTOWELL HTW-31-WKT19-WF User Manual

WIFI BOILER THERMOSTAT HTW-31-WKT19-WF
1
This smart thermostat has been developed to be able to switch electric and conventional heating systems on and off using
a set temperature and time remotely at anytime anywhere.
Technical Data
Sender Power Supply - 2*AAA battery Backlight - White
Receiver Load current - 230Vac/Max 10A
Sensor - NTC 10K, 3950ohms at 25 ℃
Set Point Range - 5~35 ℃ Accuracy - ± 0.5 ℃ (step control by +0.5 ℃ )
Ambient - 0~50 ℃
Protection Class - IP30
Relative Humidity - 85% Housing - ABS to UL94-5 fire retardant plastic
Display and Buttons
Weekday
Clock
Battery Indicator
Set Temp.
Room Temp. Display
Heating Icon.
Programmable Period
PRG. Button On/off Button
Temp. & Parameters setting
Modes Select

HOTOWELL HTW-31-WKT19-WF Specifications

General

Brand	HOTOWELL
Model	HTW-31-WKT19-WF
Category	Thermostat
Language	English

Summary

Technical Specifications

Power Supply and Load

Sender uses 2*AAA batteries; receiver load current is 230Vac/Max 10A.

Temperature Settings

Set point range is 5-35°C, ambient temperature range is 0-50°C, accuracy is ±0.5°C.

Environmental and Material

Operates at 85% relative humidity, IP30 protection class, and features a fire retardant ABS housing.

Sensor and Backlight

Equipped with an NTC 10K sensor and a white backlight.

User Interface and Controls

Display Indicators

Key display elements include Weekday, Clock, Battery Indicator, Room Temp Display, and Heating Icon.

Control Buttons

Buttons for PRG, On/off, Modes Select, and Temp & Parameters setting are present.

Programmable Period Status

Indicates the current programmable period status on the display.

Programming and Settings

Period Setting (PRG. Setting)

Guide to set time and temperature for up to 4 daily periods, with default settings provided.

Hour/Date Setting

Procedure to set the current hour, minute, and day using the M button.

Open Window Detection Function

Automatic heating stop when a sudden room temperature drop is detected.

Connectivity and Pairing

Code Pairing with Sender

Instructions for pairing the thermostat with the receiver unit via a code.

Code Pairing with App

Steps to connect the thermostat to a smartphone app via Wi-Fi.

Clear All Pairing

Procedure to remove all existing paired devices and connections.

Signal Lost Indicator

LED 2 flickers slowly to indicate RF and Wi-Fi signal loss or disconnection.

Parameter Settings

Temperature Calibration

Adjust internal sensor calibration for accurate temperature readings.

Set Point Limits

Configure maximum and minimum set point values for heating control.

Frost Protection and Dead Zone

Set frost protection temperature and dead zone to prevent freezing and cycling.

Open Window Detection Settings

Configure OWD function, detect time, and temperature drop thresholds.

Factory Reset

Option to restore the thermostat to its original factory default settings.

Installation and Wiring

Wiring Diagrams

Schematics showing AC 220V connections for normally closed (NC) and normally open (NO) circuits.

Installation Methods

Instructions for portable use with foot pod and wall mounting using a bracket.

Dimensions

Provides physical dimensions of the thermostat unit for installation planning.