Device Settings

General Settings


Parameters	Description
Reporting Interval	The interval of reporting data to network server. Default: 10 min, Range: 1 - 1440 min
Temperature Unit	Set the unit of temperature displayed on the screen and the configuration page.
System On/Off	Turn on/off the fan coil system. This can also be switched by the button or downlink command.
Mode Enable	Select the control mode range for the button, ToolBox or downlink command to switches.
Temperature Control Mode	Select the current control mode from the control mode range. This mode can also be switched by the button or downlink command.
Target Temperature Resolution	Select the resolution to adjust and display the target temperature. Options: 0.5, 1.
Target Temperature	Set the target temperature of heat or cool mode. This is not used in ventilation mode.
Target Temperature Tolerance	Set the allowed tolerance value between target temperature and current temperature.
Target Temperature Regulation Range	Set the range to adjust the target temperature, this must more than 1. Range: 5-35°C (41-95°F)
Target Humidity Range	Set the target humidity range.
Temp. Control and Dehumidify	When reaching the target temperature range but not reaching the target humidity range, the device will keep cooling or heating to dehumidify. Temp. Tolerance for Dehumidification: When reaching this tolerance over target temperature range, the device will stop heating or cooling even it is not reaching the target humidity range.
Fan Mode	Select from Auto, Low, Medium and High. This can also be switched by button or downlink commands.
Fan Delay	Enable to delay the close of fan after the system is off, or the temperature control stops under auto fan mode. The Duration of Delay: Set the duration of the fan’s deferred closing. Range: 30-3600s.
Time Switch System	Enable to configure the time and weekday to turn on/off the fan coil system. The device supports to add at most 4 on time and 4 off time. Tip: If the repeat day is not selected, the time will only execute once.
Smart Display	When the new collected value is close to the last value (temp. ≤ ±0.5°C or hum. ≤ ±3%) within 10 minutes, the screen will stop updating these values to save life and power.
Child Lock	Enable to lock the button features. After enabled, the device can only control these features via ToolBox or downlink commands.
Time Zone	Select the UTC time zone. When you click Sync button of ToolBox App to sync time, the device will also sync the time zone from smart phone automatically.
Daylight Saving Time	Enable or disable Daylight Saving Time (DST). Start Time: the start time of DST time range. End Time: the end time of DST time range. DST Bias: the DST time will be faster according to this bias.
Change Password	Change the password for ToolBox App to write this device.

Calibration Settings

The device supports temperature and humidity numerical calibration.

Note: The calibration settings will not work if the data source is LoRaWAN^® network server or D2D devices.

Temperature Calibration: set the calibration value, the device will add calibration value to the current temperature value and report the final value.

Humidity Calibration: set the calibration value, the device will add calibration value to the current humidity value and report the final value.

Threshold Settings

The device supports to send alarm packets when the environment temperature reaches the preset thresholds.

Temperature threshold: When current temperature is over or below the threshold value, the device will report a threshold alarm packet instantly. Only when the threshold is released and re-triggered, will the device report the alarm again.

Persistent low temperature threshold

When current temperature is lower than the Tset - To(target temperature - target temperature tolerance) for difference value and specific duration, the device will report a threshold alarm packet instantly. When the threshold is released, it will also report the alarm release packet.

Example: Target temperature is 22°C, target temperature tolerance is 1°C, the device will send this alarm when the environment temperature is below 18°C for 5 minutes.

Persistent high temperature threshold

When current temperature is higher than the Tset + To (target temperature + target temperature tolerance) for difference value and specific duration, the device will report a threshold alarm packet instantly. When the threshold is released, it will also report the alarm release packet.

Example: Target temperature is 22°C, target temperature tolerance is 1°C, the device will send this alarm when the environment temperature is over 26°C for 5 minutes.

Schedule Settings

The device supports to add schedule plans to achieve the automatic temperature control for different time periods.

Step 1: Ensure the device time is correct.

Step 2: Select the required schedule plan and click Edit to configure the schedule name, temperature control mode, fan mode, target temperature and target temperature tolerance. You can also click Add New Schedule to add a new schedule. One device supports 8 kinds of schedule plans at most.

Tip:

The schedule name only allows these characters: a-z, A-Z, digits and spaces. The maximum length of the name is 10.
If the temperatures are left blank, this schedule plan will only execute when the temperature control mode is Ventilation.

Step 3: Add the time period to execute the schedule plan. Every schedule plan supports 16 time periods at most.

Tip:

If the repeat day is not selected, the time will only execute once.
Every time period must be different.

Step 4: Click Write to save above settings.

Installation Settings

It is necessary for the device to configure the features of every wire after wiring installation.

WT303


Parameter	Description
System Type	Select the fail coil system type according to the wiring.
DI Settings	Enable or disable the DI interface and select the type according to connected terminals. Key Card: Select the control action as system on/off control or schedule plan switches when inserting or removing the key card. Tip: Insert card = DI and GND connected, remove card = DI and GND disconnected. Magnetic Contact Switch: select the sensor type as NC or NO.NO: DI and GND connected=door/window open NC: DI and GND connected=door/window open
Open Window Detection	When the device detects the open window status, it will send the open window alarm and stop temperature control (valve and fan off). The open window status can be detected by two modes: Temperature Collection: When the temperature changes over the preset value, the device will judge as open window status to send alarm and stop temperature control. After the stop time, the device will release the open window status and start temperature control. Magnetic Detection: This mode only works when the DI is enabled and work as Magnetic Contact Switch. When the magnetic contact switch detects window open and last for this duration, the device will judge as open window status to send alarm and stop temperature control. When the magnetic contact switch detects window close and last for this duration, the device will release the open window status and start temperature control.
Freeze Protection	When current temperature is lower than the protection target temperature, the device will start heating until the temperature reaches to [protection target temperature + target temperature tolerance], then change back to the original status. If the system is off, this feature will turn on temporarily and only System On/Off button can work.

WT304


Parameter	Description
System Type	Select the fail coil system type according to the wiring.
Valve Control Adjustment Range	These parameters can be used to adjust the change rate of 0-10V valve opening according to the difference between the current temperature and target temperature control stop point. Example:
Valve Opening Range
Valve Control Interval	The device will keep the valve opening percentage for this interval, and change after this interval.
Low/Medium/High Speed	When the fan type is ECM fan (0-10V), configure the voltage output percent of every speed.
DI Settings	Enable or disable the DI interface and select the type according to connected terminals. Key Card: Select the control action as system on/off control or schedule plan switches when inserting or removing the key card. Tip: Insert card = DI and GND connected, remove card = DI and GND disconnected. Magnetic Contact Switch: select the sensor type as NC or NO.NO: DI and GND connected=door/window open NC: DI and GND connected=door/window open
Open Window Detection	When the device detects the open window status, it will send the open window alarm and stop temperature control (valve and fan off). The open window status can be detected by two modes: Temperature Collection: When the temperature changes over the preset value, the device will judge as open window status to send alarm and stop temperature control. After the stop time, the device will release the open window status and start temperature control. Magnetic Detection: This mode only works when the DI is enabled and work as Magnetic Contact Switch. When the magnetic contact switch detects window open and last for this duration, the device will judge as open window status to send alarm and stop temperature control. When the magnetic contact switch detects window close and last for this duration, the device will release the open window status and start temperature control.
Freeze Protection	When current temperature is lower than the protection target temperature, the device will start heating until the temperature reaches to [protection target temperature + target temperature tolerance], then change back to the original status. If the system is off, this feature will turn on temporarily and only System On/Off button can work.