British Gas RF720BG Wireless Programmable Thermostat User Manual

British Gas RF720BG Wireless Programmable Thermostat

User Instructions

What is a programmable room thermostat?

…an explanation for householders

A programmable room thermostat is both a programmer and a room thermostat. A programmer allows you to set ‘On’ and ‘Off’ time periods to suit your own lifestyle. A room thermostat works by sensing the air temperature, switching on the heating when the air temperature falls below the thermostat setting, and switching it off once this set temperature has been reached.

So, a programmable room thermostat lets you choose what times you want the heating to be on, and what temperature it should reach while it is on. It will allow you to select different temperatures in your home at different times of the day (and days of the week) to meet your particular needs.

Turning a programmable room thermostat to a higher setting will not make the room heat up any faster. How quickly the room heats up depends on the design of the heating system, for example, the size of the boiler and radiators.

Neither does the setting affect how quickly the room cools down. Turning a programmable room thermostat to a lower setting will result in the room being controlled at a lower temperature and save energy.

The way to set and use your programmable room thermostat is to find the lowest temperature settings that you are comfortable with at the different times you have chosen, and then leave it alone to do its job. The best way to do this is to set low temperatures first, say 18 °C, and then turn them up by one degree each day until you are comfortable with the temperatures. You won’t have to adjust the thermostat further. Any adjustments above these settings will waste energy and cost you more money.

If your heating system is a boiler with radiators, there will usually be only one programmable room thermostat to control the whole house. But you can have different temperatures in individual rooms by installing thermostatic radiator valves (TRVs) on individual radiators. If you don’t have TRVs, you should choose a temperature that is reasonable for the whole house. If you do have TRVs, you can choose a slightly higher setting to make sure that even the coldest room is comfortable, then prevent any overheating in other rooms by adjusting the TRVs.

The time on the programmer must be correct. Some types have to be adjusted in spring and autumn at the changes between Greenwich Mean Time and British Summer Time.

You may be able to temporarily adjust the heating programme, for example, ‘Override’, ‘Advance’, or ‘Boost’. These are explained in the manufacturer’s instructions.

Programmable room thermostats need a free flow of air to sense the temperature, so they must not be covered by curtains or blocked by furniture. Nearby electric fires, televisions, wall or table lamps may prevent the thermostat from working properly.

Your Smart Linked Thermostat

The Smart Linked Thermostat is a programmable thermostat 7 Day product. Full 7-day functionality allows you to set a different program for every day of the week. Each program type allows you to set 6 time and temperature events.

Clock Setting

Your Smart Linked Thermostat is fitted with a real-time clock, which is pre-set at the factory. You will not have to alter the time settings.

A special feature of this real-time clock is to automatically update the time during the summer/winter time change, removing the need to manually alter the clock.

General Operation

With the unit in Auto mode (the small arrow at the bottom of the screen will point to Auto), the temperature can be changed for a short time by using the + or – buttons. Changing the temperature in this way will keep the Smart Linked Thermostat set to your new temperature until the next pre-programmed event (at which time it will revert to the programmed temperature). The temperature you are setting will flash on the screen. Once the temperature is set, the unit will revert to showing the current temperature. The indicator will show on the screen if the heating is turned on.

Controls and Display Layout

The temperature displayed is the actual room temperature unless you adjust the + or – button when it displays the set temperature. Once the adjustment is complete and after 5 seconds, this will return to the actual room temperature.

Basic Settings

The Smart Linked Thermostat is a programmable thermostat 7 Day product. Full 7-day functionality allows you to set a different program for every day of the week. Each program type allows you to set 6 time and temperature events.

Pre-set Program

Your Digistat comes with the following default settings pre-programmed for your convenience:

Pre-set Program 1 (9 til 5)

Weekday

As you can see, at 06:30, the heating will come on to raise the temperature to 20ºC. At 08:30, the temperature set point is dropped from 20ºC down to16ºC, it stays at 16ºC throughout the day, until 16:30 when the temperature increases to 21ºC. The temperature then drops down to a night-setback temperature of 7ºC until 06:30, when the cycle repeats for the next day. (Monday to Friday) or changes to weekend setting, see below.

Weekend

As you can see, at 07:00, the heating will come on to raise the temperature to 20ºC. At 09:00, the temperature set point is dropped from 20ºC down to18ºC, it stays at 18ºC until 12:00 when the heating comes on to raise the temperature to 21ºC. The temperature stays at 21ºC until 14:00, when it drops down to 18ºC.

At 16:30, the heating comes on to raise the temperature to 21ºC, where it stays until 23:00, when the temperature then drops down to a night-setback temperature of 7ºC until 07:00, when the cycle repeats for the next day. (Saturday and Sunday) Or changes to weekday settings, see above.

To adjust the times and temperatures for a 7-day operation:

1. With the product operating as normal in the Auto mode, press > once. The display is flashing and shows.
2. Press > the once, the display will be as shown. The time will be flashing, use the + or – buttons to adjust the 1st time as required.
3. Once time has been set, press > and use the + or – buttons to adjust the required temperature. Repeat the above steps 2-3 until the 6 periods have been set for Monday.
4. Once Monday has been set, press > once. Repeat steps 2-3 until all 7 days of the week have been set.
5. Once the final temperature has been set, press the > button to confirm settings. To exit, press < or > until you return to auto mode with the bottom arrow pointing at Auto.

To change the temperature for a short period (Override):

1. Press + or – buttons to adjust the set temperature. The set temperature is shown flashing
2. After 5 seconds will start controlling at the selected set point, but displays the actual room temperature. 2 chevrons indicate override mode.
3. To exit override, press > once or wait until the next change in the pre-set program.

To set a constant room temperature (Manual mode):

1. Press < once, the display shows temperature flashing (example 20°C)
2. Press + or – buttons to adjust the temperature as required. The temperature will stop flashing after 5 seconds and start controlling at this temperature
3. To exit manual mode, press > once, to return to auto.

To set holiday mode:

1. Press < twice, the display shows time flashing. Time periods between 1 to 23(Hr)hours and 1 to 199(d)days can be set.
2. Press + or – buttons to adjust the countdown time as required. Press > once, the display will show the temperature flashing.
3. Press + or – buttons to adjust the temperature and press > to start the holiday countdown time. Alternatively, after 10 seconds, the temperature will stop flashing, and the holiday countdown time will start. The display shows countdown time and ambient room temperature.
4. To exit the holiday mode, press the < or > once to return to auto.

To switch OFF the thermostat:

Press the + and – simultaneously for 5 seconds until the OFF is displayed.

The thermostat and heating system will now be OFF unless the temperature in the controlled space falls below 7°C, the frost protection set point. Please note this does not affect the operation of the domestic hot water, where provided.

To switch ON the thermostat, press the + and – simultaneously for 5 seconds until the OFF disappears.

User Options

If you wish to change any User Options (shown in Table 1), they can be accessed from Auto or Manual by pressing < and > simultaneously for 3 seconds. Once you have accessed the User Options Menu (Fig. 4), press > to scroll through selectable options. The settings for each option can be changed by pressing + or – as required. Press > to accept the change and move to the next option. To exit, press < and > simultaneously for 3 seconds. Alternatively, not pressing any buttons for 2 minutes will cause the Digistat to return to Auto. (Fig 5) shows option 01 24 (24-hour clock).

Only selected options that have been accepted by pressing > will be changed.

(Option 01)

How to change from a 24-hour to a 12-hour clock.

Enter user options, select option 01, and use + and – keys to select desired option, 12 = 12hr and 24 = 24hr. Press > to accept change

(Option 02)

How to change to another predefined program 1, 2, or 3.

Enter user options, select option 02, and use + and – keys to select desired program 1, 2, or 3. 1 = program 1, 2 = program 2, and 3 = program 3. Press > to accept desired change.

Preset programs 2 and 3 are shown below:

Pre-set Program 2 (Home for lunch)

Weekday

Weekdays

As you can see, at 06:30, the heating will come on to raise the temperature to 21°C.

At 08:30, the temperature set point is dropped to 16°C, it stays at 16°C until 12:00 when the heating comes on to raise the temperature to 21°C. The temperature stays at 21°C until 14:00, when it drops to 16°C. At 16:30, the heating comes on to raise the temperature to 21°C, where it stays until 22:30, when the temperature drops down to a setback temperature of 10°C until 06:30, when the cycle repeats the next day.

Weekends

As you can see, at 7:00, the heating will come on to raise the temperature to 21°C.

At 9:00, the temperature set point is dropped to 18°C, it stays at 18°C until 12:00 when the heating comes on to raise the temperature to 21°C. The temperature stays at 21°C until 14:00, when it drops to 18°C. At 16:30, the heating comes on to raise the temperature to 21°C, where it stays until 23:00, when the temperature drops down to a setback temperature of 10°C until 07:00, when the cycle repeats the next day.

Weekend

Pre-set Program 3 (Home Worker)

Weekday

Weekdays

As you can see, at 06:00, the heating will come on to raise the temperature to 21°C.

At 08:30, the temperature set point is dropped to 19°C, it stays at 19°C until 12:00 when the heating comes on to raise the temperature to 21°C. The temperature stays at 21°C until 14:00, when it drops to 19°C. At 17:30, the heating comes on to raise the temperature to 21°C, where it stays until 22:30, when the temperature drops down to a setback temperature of 16°C until 06:00, when the cycle repeats the next day.

Weekend

Weekends

As you can see, at 7:00, the heating will come on to raise the temperature to 21°C.

At 9:00, the temperature set point is dropped to 18°C, it stays at 18°C until 12:00 when the heating comes on to raise the temperature to 21°C. The temperature stays at 21°C until 14:00, when it drops to 18°C. At 16:30, the heating comes on to raise the temperature to 21°C, where it stays until 23:00, when the temperature drops down to a setback temperature of 16°C until 07:00, when the cycle repeats the next day.

(Option 03)

How to change the number of program events per day.

Enter user options, select option 03, and use + and – keys to select desired option. 2 = 2 time/temp events per day, 4 = 4 time/temp events per day, and 6 = 6 time/temp events per day. Press > to accept desired change.

(Option 04)

How to switch on/off the automatic summer /winter time change.

Twice a year, the actual time is automatically changed to keep it in line with the summer/winter time change. The default setting is On. If you wish to disable/enable this feature, enter user options, select option 04, and press – or + key to display Off or On as desired. Press > to accept desired change.

Date and time setting.

Digistat comes with a pre-set clock, which also automatically adjusts for summer/winter time changes. It is activated automatically on 1st installation. There should be no need to change these settings; however, should you wish to, it can be done in Option 05.

(Option 05)

How to adjust the date and time.

Enter user options, select option 05 (fig 6), press key.

• To change the year, press > once (fig 7)
• To change the month, press > again (fig 8)
• To change the day, press > again (fig 9)
• To change the time, press > again (fig 10)
• Once you have selected your required display, to adjust, press + or – and > to accept the change.
• To select option 06, press > until option 06 is displayed (fig 11)

(Option 06)

How to change the temperature offset.

The temperature displayed on the thermostat may not match that of other temperature-measuring devices in the controlled space, because of its location. The displayed temperature may be offset to bring it in line with other devices. To adjust the temperature, enter the user options, select option 06. The temperature may be offset by +/- 5 degrees by pressing the + and – keys. Press > to accept the desired change.

(Option 07)

How to restore the built-in time temperature programs.

Enter user options, select option 07, and use the + and – keys to select the desired option. Off = current programs retained. On = restore factory program settings. Press > to select the desired change. The option 07 display automatically reverts to off. Please note that enabling this function will lose any user changes to the preset programs.

(Option 08)

How to lock the keypad – Access Protection Lock.

The access protection lock allows you to lock the Digistat so that it cannot have any adjustments.

The default is OFF mode, allowing you to adjust the Digistat.

To lock the Digistat setting, enter the User Options Menu Option 08 and select On and press > to accept.

Once the User Options Menu is exited, all buttons will be locked.

To switch off the Protection Lock, enter the User Menu and change to OFF. Press > to accept.

Once the User Menu is exited, all buttons will be free to adjust.

(Option 09)

Establish the radio link address automatically

With this option, a radio link between transmitter and receiver can be created

1. Activate “learning mode” on the receiver (see receiver instructions).
2. Activate “learning mode” on this transmitter as follows:

Activate USER-SETTINGS, and then:

• Press the button > until option 9 is displayed.
• Press the button, + “LErn” will be displayed

Press button >”LErn” is blinking, ON is visible; Learn-Mode is now active.

When the connection has been created successfully, the indicator lamp on the receiver extinguishes (after ~1 minute)

• Press the button > on the transmitter to terminate Learn Mode

Press buttons < and > simultaneously for 3 seconds in order to activate AUTO

Note: Activating learning mode will create a new address; all receivers linked to this transmitter need to be re-learned. The transmitter exits the learning mode after 10 minutes.

Battery Handling

Batteries, rechargeable or not, should not be disposed of in ordinary household waste. Instead, they must be recycled properly to protect the environment and cut down on the waste of precious resources.

Your local waste management authority can supply details concerning the proper disposal of batteries.

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British Gas RF720BG Wireless Programmable Thermostat-FAQs