Honeywell WTS Touch Screen Thermostat User Manual

Honeywell WTS Touch Screen Thermostat User Manual

Honeywell WTS SERIES Touch Button Thermostats for FCU Applications

The WTS Series Touch Button thermostat is a temperature control device with an extra-large LCD display, capacitive touch interface with color icons and manual or automatic fan speed selection. The units monitor the actual room temperature, humidity* and the set temperature in real-time to control the opening / closing of the valves in the fan coil units to regulate the room temperature to the occupant’s desired comfort. Chose from a variety of options including white or black color shell, humidity display, Modbus communications and ECM fan support. Its ultra-thin design fits any standard 86 x 86mm or smaller wall-mounted installation box. It features built-in temperature and humidity* sensor, anti-freeze protection, lock/unlock operating buttons and timed shutdown function.

FEATURES AND BENEFITS

1. Built-in temperature and humidity* sensor. The unit monitors in real-time the actual room temperature and the set temperature to regulate the room temperature by controlling the opening/closing of the fan coil unit valve and the fan speed.
2. Extra-large LCD and intuitive interface making it easy to set temperature to the occupant’s desired comfort. Ultra-thin, sleek design with capacitive touch color icons. Available in Black or White shell.
3. Enhanced energy efciency through modulating control of the fan coil unit valve and ECM Fan support*
4. Automatic fan speed control algorithm calculates the difference between the room and the set value and automatically adjust the fan speed for greater energy saving.
5. Wide range of options to meet most of the requirements in buildings control. Additional functions include keypad lockout, timed shutdown and Modbus communications*.

*On selected models, please refer to the part number selection table

VALVE AND FAN CONTROL

The WTS Series thermostat reads the room temperature from its built-in sensor and maintains the set temperature by sending on/off commands to the valve. There are three fan speeds which can be set manually or automatically. In manual mode, the fan speed is adjusted by FH, FM and FL outputs. In automatic mode, the fan speed will be decided by the difference between the room temperature and the set value. The fan will shut down when the valve is not operating.

Note : WTS3B4RXXX Models have Low and High Fan Speed only.

WTS SERIES Technical Specifications

TECHNICAL PARAMETERS

• Communication: RS485 MODBUS*
• Protocol & Baud Rate: 4800/9600 (Default)/19200/38400 bps
• Operating Voltages: 100-240VAC 50/60Hz / 24VAC±10% 50/60Hz
• Temperature Setting Range: 10°C-32°C
• Temperature Display Range: 0°C-50°C
• Control Accuracy: 25°C±1°C
• Humidity Measurement Accuracy: 0% ~99% RH; ±10% (Only for “/H” models)
• Control Signal: Modulating Output Load Capacity
• Fan: Resistive Load 5A; Inductive
• Load 2A Valve: Resistive Load 5A; Inductive Load 2A
• Remote Sensor Type: NTC20K

ENVIRONMENTAL

• Operating Temperature: -10°C to 60°C
• Shipping Temperature: -10°C to 60°C
• Relative Humidity: 0 to 95% relative humidity (non-condensing)
• Relative Humidity: 0 to 95% relative humidity (non-condensing)
• Protection Rating: IP20

PERFORMANCE HIGHLIGHTS 

• Extra-large LCD display and operating interface
• Temperature display selection (room temperature or set temperature)
• Built-in temperature sensor
• Manual or automatic fan speed selection
• Anti-freeze protection
• Operating buttons lock/unlock
• Timed Shutdown

OUTLOOK DESIGN AND DISPLAY

Either the real-time room temperature or the set temperature can be displayed. This can be selected while installing and setting up the thermostat.

TIMED SHUTDOWN 

In shutdown state, enter the timed shutown setting through the combination of keys. Timed shutdown time can be set from 0.5 to 12 hours, with every 0.5 hours in between.

KEYPAD LOCKOUT

It is possible to lock or unlock the keypad while the device is not in setting mode. When locked out, the keypad will not respond when any of the buttons are pressed.

HUMIDITY DISPLAY

On selected models with humidity sensor, the room humidity can be displayed on the main screen, or this parameter can be hidden through the device setting.

OPERATION MODES

• COMFORT MODE In comfort mode, the setpoint can be changed by pressing up or down button. Different applications include cool only, heat only and manual heat/cool changeover.
• VENTILATION MODE In ventilation mode, fan only support manual speed control.
• ANTI-FREEZE MODE Freezing protection can be disabled (default) or enabled.If freezing protection is enabled (it is not available in cool only application) and thermostat is in OFF mode while the room temperature is below 6°C, the thermostat will open heating device before the temperature rises to 8°C.

DIMENSIONS

INSTALLATION

Please follow below drawings for wiring and ensure the connection reliable. Ensure to tighten the terminal screws to prevent the wire from falling off.

WIRING DIAGRAMS

PART NUMBER: WTS3B4XXXX

4-Pipe, PI (0-10V) Valve, 3-Speed fan, 220 VAC power supply

2-Pipe, PI(0-10V) Valve, 3-Speed fan, 220 VAC power supply

PART NUMBER: WTS6B4XXXX

4-Pipe, 2-Wire Valve, BLDC Motor, 220 VAC power supply

2-Pipe, 3-Wire Valve/2-Wire Valve, BLDC Motor, 220 VAC power supply

TERMINAL DEFINITION

SYMBOL DESCRIPTION

PART NUMBER: WTS3B4RMX/X

4-Pipe, PI(0-10V) Valve, 2-Speed Fan, Electric auxiliary heating, 220VAC Power Supply

2-Pipe, PI(0-10V) Valve, 2-Speed Fan, Electric auxiliary heating, 220VAC Power Supply

PART NUMBER: WTS3B4RME/X

4-Pipe, PI(0-10V) Valve, 2-Speed Fan, Electric auxiliary heating, 220VAC Power Supply, with RS485

2-Pipe, PI(0-10V) Valve, 2-Speed Fan, Electric auxiliary heating, 220VAC Power Supply, with RS485

TERMINAL DEFINITION

SYMBOL DESCRIPTION

PART NUMBER SELECTION

WTS3/6

 Readmore and Download Honeywell WTS Touch Screen Thermostat User Manual

Title	: Honeywell WTS Touch Screen Thermostat User Manual
Format	: PDF
Pages	: 10 Pages
Language	: English
File Size	: 1,9 MB