TFC Group OP-WFSTAT Wi-Fi Programmable Thermostat User Guide

App / WiFi GUIDE – WFSTAT OPTIMUM VIBE WiFi PROGRAMMABLE THERMOSTAT

Transmitter

Receiver

The OPTIMUM VIBE – Model WFSTAT incorporates both radio frequency and WiFi connectivity.
The control set – when configured for T.P.I. control – meets the UK Government BEIS Department’s criteria for Class IV control, contributing 2% to the energy efficiency of the system.

The transmitter is battery-powered (2 x AAA alkaline); the receiver is mains- powered, with volt-free switching

The control set uses the license – free 868 MHz radio band to communicate between transmitter and receiver. The receiver incorporates both 868MHz RF and 2.4GHz WiFi communications. The Optimum Connect C-Home App (or the Tuya Smart App) will allow control of the thermostat and receiver wherever you are, from your smart phone via your WiFi router.

Install the C-Home App on your iOS or Android mobile phone – scan the QR code for your device below, or search C-Home on the iOS App or Google Play Store

The Tuya Smart App can also be used to control your Optimum Connect devices.

Load the App and follow the instructions to create your user account.

Before adding the thermostat in the App, make sure that you first connect the receiver and power-up the receiver. Then add the device as noted below.

Once the App is installed on your smart phone you can add the VIBE – WFSTAT. If you have a dual-band WiFi router, make sure that your phone is connected to the 2.4GHz network. You may have to separate the 2.4 GHz and 5 GHz
networks in the home page of your router to do so, as smart phones will often connect to the 5GHz network by default.

In the App home screen touch the + icon (top RH corner) to add a device. Select ‘Small Home Appliances’ in the left-hand column
Select ‘Thermostat’ from the list of devices; you may have to scroll down to find the
Thermostat icon—see the partial screenshot here
Re-enter your router password (if prompted) .
Press and hold the receiver manual button until the Red Heating on LED flashes rapidly *.
Release the button (the LED should continue flashing rapidly)
On the App, press ‘Confirm’ – the App will load the device. The LED will stop flashing.
The WFSTAT will display in the App Home Screen with the icon as shown here.

* Notes on LED function:

The Red ‘Heating on’ LED is ON or OFF indicating the output state. It flashes quickly when in Wifi or RF configuration mode. It flashes slowly if WiFi is offline or RF communication has failed. The Green ‘Power’ LED is ON and flashes once per second – when connected.

Follow the instructions below to control the VIBE – WFSTAT with your smart phone. The home screen gives access to other functions:

Switch – switch the transmitter (thermostat) ON or OFF.

Note that if you turn the thermostat OFF, whilst this will save battery power,
the thermostat will no longer control the heating, which will also remain OFF.

Setpoint – touch the slider or ˄ / ˅ to change the current temperature set-point

Mode – Allows you to quickly change from Auto (programmed) temperature, to Manual or ECO temperature levels. Manual and ECO temperature levels can be set from the Set point screen

Touch the Heating Thermostat panel icon , to open access to additional functions.

Touch the pen icon to re-name the device, and view / amend basic parameters about the device settings / functions, including device sharing, remote operation
(e.g. Amazon Echo). From here you can also remove the device from the App.

Touch the clock icon to enter a timed schedule if required. The schedule will switch the transmitter ON and OFF (and thereby enable / disable the weekly program) according to your requirements.

Switch the thermostat ON or OFF (see above)

Set the Central Heating target temperature (use the slider or the ˄ / ˅ arrows)

Use these icons to switch quickly between Manual, ECO (set your own manual or Eco temperature which is retained for next use), or Auto (current program or schedule in operation)

Weekly program screen: adjust day / time / temperature programming

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