5
1) Anti-Frost mode is set at 5°C and cannot be changed.
2) Default is Comf mode after reset or power up.
View/Change set temperature mode
• When the thermostat is in home screen in Comfort/Economy/Anti-Frost mode, press or to
enter View/Change the set temperature.
• The LCD will show the current temperature setting with flashing digits.
• Press or again to increase or decrease the set temperature in 0.5°C steps.
• Press and Hold or for 2 seconds to advance quickly in is 1.0°C steps.
• In Comfort/Economy mode, the temperature can be set between 5°C and 30°C. In Anti-Frost
mode, the temperature is set at 5°C and cannot be changed.
• When changing temperature, only or have functionality.
• If no further keys are pressed, after 5 seconds, the setting is saved and the thermostat will return
to home screen automatically.
Change Operation Mode
The thermostat can operate in three different modes: Comf, Econ or Anti-Frost. The default mode
is Comf.
Change between Comf/Econ/Anti-frost mode
• Short press: changes unit from normal mode to Econ mode, or from Econ mode to normal mode.
• Long press for 3 seconds: changes unit to Anti-Frost mode from any other.
• While unit is in Anti-frost mode, a long press will return the thermostat to its previous mode
Anti-Frost Mode
To enable the anti-frost mode, press and hold the
button for 3 seconds. Once Anti-Frost mode
is enabled, the temperature is automatically set to 5°C to provide protection from the risk of
freezing.
Whenever Anti-Frost mode is activated, the Anti-Frost indicator
will be shown below.
To turn off anti-frost mode, press and hold the
button for 3 seconds.
Please be aware that the Anti-Frost mode operates as an additional protection feature but should
not be used in place of a correctly installed frost thermostat, which is required to override all the
other controls in the system.
The backlight will remain illuminated for approximately 5 seconds.
Backlight
The backlight of the TPSRF31 is switched on automatically whenever any of the keys are pressed.
The backlight will remain illuminated for approximately 5 seconds after the last key press, except
if you are changing the set point temperature – in this case, the backlight will remain illuminated
throughout the setting change process.
The backlight will not illuminate if the TPSRF31 battery is low.
Battery Status
• The TPSRF31 checks the battery voltage frequently during normal operation. If the battery
voltage is sensed as being low (this is normally when the battery voltage falls to a level of below
2.4V, the low battery indicator
will be displayed steadily on screen.
• Although the programmable thermostat will continue to operate normally at this stage, you
should replace the batteries as soon as possible to prevent any possible operating problems.
Battery Cut-off Handling
