hotowell HTW-31-F17 Digital Thermostat Product Specification Guide

hotowell HTW-31-F17 Digital Thermostat

Product Overview

This kind of digital thermostat, applying the most advanced and international standardized microcomputer control chip, measures the indoor temperature by the in-built NTC high-precision sensor. It can always compare with the setting temperature, and automatically regulate the heating/cooling air input or switch on/off the motorized valve, so as to keep the room at a certain temperature

Technical Data

• Working voltage: AC220V±10%, 50/60Hz(AC110V/24V optional)
• Max resistive current: <3A
• Power self-consumption: <1.5W
• Temperature accuracy: ±1°C
• Timing error: <1%
• Output rated power: <200W
• Temperature setup range: 10°C – 30°C (Step control by +0.5C)
• Protection Class: IP30
• Ambient Temperature range: 0°C – 50°C

Alternative Working Modes Table

A: Control the fan coil and motorized valve synchronously (The fan stops as the motorized stops when the temperature reaches the set value.)
B: Control the fan coil and motorized valve. Asynchronously (the fan goes on working as the motorized valve stops when the temperature reaches the set value.)
T: Have clock or timing power ON/OFF function.
Y: Have a remote control function, if it is blank, it means thermostats do not have this function.
L: Have a backlight function, if it is blank, it means thermostats do not have this function.
K: Key-Card occupied/unoccupied detecting input.
N: RS485 ModBus communication.
M: Modulating signal output(0-10V/2-10v/4-20mA optional)

Button

Lock/Unlock keyboard: Long press+, – simultaneously 10s to lock/unlock buttons.

Operating Process of Tools

1. Temperature Setting
2. Temperature Setting
3. Wind Speed Setup
4. Cooling/Heating Setup If you press the button [wind speed], it is respectively automatic wind, automatic wind, high-speed wind, medium-speed wind, low-speed wind, medium-speed wind, and low-speed wind in turn.

If you press the button [wind speed], it is respectively automatic wind, automatic wind, high-speed wind, medium-speed wind, and low-speed wind, medium-speed wind, and low-speed wind in turn.

Parameter Setupadjust the wind speed
During the Turn-Off status, simultaneously press the “M” and “+” buttons for 10 seconds to access ISU(Installer Set-Up) setting, until the screen showing appears “01”, which is menu No.1. Each presses the M button to switch to next menu.

Full Segments Screen Display

Technical Information

Installation Dimension Figure

Wiring Diagram (more customized solutions are available)

Installation Instruction

Please follow the instructions to make the correct installation.

Step 1: Open the control board, Use a 3.5mm wide screwdriver along the bevel into the slot for 4mm.

Step 2: Slightly upwardly prize it to open the hook.

Malfunction Disposal

Malfunction	Disposal
Boot-strap error	Check L.N power and the wiring connection Check the power ON/OFF button Change the control board, or change the power supply board Check the connection of wiring between the control board and the power supply board
LCD garbled	The back shell may be deformed during the installation loose the two fixation board
No output with right display	Power control panels and connecting cable may be damaged Change the control board and then change the power plate
Remote failure	Check whether there is a remote battery power Change the remote
Temperature display abnormal	The temperature hasn’t been calibrated.

Cautions

• Please connect wires in strict compliance with the installation wiring diagram
• Please install thermostats correctly in strict compliance with the installation diagram
• Do not pull the cable forcibly, or it may be damaged
• Do not squeeze the LCD or scratch the LCD surface during the installation
• During the installation, do not knock those electronic components on the circuit board, and do not drop or deform the back cover
• If hard plastic lines are used during the installation, do bend them to an appropriate angle firstly
• Do not drop it into construction mud.
• Warranty Service & Sale Support

Warranty Service & Sale Support

The warranty service is 18 months from the date of purchase. The products of our company may enjoy life-long in accordance with the regulation. Our company will make a certain change to the service out of the warranty period or product quality. Hotowell International Co., Limited |info@hotowell.com| +86-592-3327332 | Building 7, Guanyinshan International Business Center, Xiamen 361000, China

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hotowell HTW-31-F17 Digital Thermostat Product Specification Guide

hotowell HTW-31-F17 Digital Thermostat Product Specification Guide