User manual LEXON LA78

[. . . ] 11 2. 4 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Installation manual 1. 0 Installation overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 1. 1 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 1. 2 Installation guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] · The child lock can be switched off using the same procedure as for switching it on. 1. 6 Switching the thermostat on and off The thermostat can only be switched off if the timer is off. If you lower the temperature below +5 °C, the thermostat switches off. If you raise the temperature to +5 °C or above, the thermostat switches on again. 7 User guide 2. 0 Advanced 2. 0. 1 Switching the timer on and off The timer is switched on and off by pressing the button. · The hour display shows the set comfort temperature periods for the current day as black segments of dots. · The system automatically switches between comfort and economy temperatures at the preset times of day. · The economy temperature never appears on the alphanumeric display. The display consistently shows the set comfort temperature, even during economy temperature periods. When the timer is off: · The hour display appears as an unbroken ring with a blinking dot indicating the current time (if set). Note: · The thermostat can only be switched off if the timer is off. 8 User guide 2. 1 Optional Settings 2. 1. 1 Setting the time and weekday INT Press and hold for 3 seconds. appears on the display. Set the correct time. · A small dot on the hour display shows the currently set time. · Activate and configure the thermostat. 15 Installation manual 2. 0 System overview 2. 1 Three different sensor configurations FS: Floor sensor (comfort heating) · Suitable for floor heating in e. g. · Comfort heating should be used only to supplement a regular room heating system. RS: Room sensor (total heating) · Suitable for control of room temperature in e. g. · The thermostat must be mounted in the same room as the heating elements. RFS: Room and floor sensor (total heating) · Suitable for control of room and floor temperature in e. g. · The floor sensor monitors the floor temperature, limiting heating element temperature to avoid risk of fire and to protect flooring from excessive temperatures. · The maximum floor temperature must be set (see section 4. 6 below). It is also possible to set the minimum floor temperature (see section 2. 1. 4 of the User guide). · The thermostat must be mounted in the same room as the floor sensor and heating elements. 16 Installation manual 3. 0 Functional overview Release tab Frame Mounting screws Front cover INT Display Button The thermostat is programmed by pressing and holding the button as follows: Seconds held 3 6 9 Function accessed Time and weekday setting Timer setting Minimum floor temperature setting Basic settings Only when configured to use room and floor sensor Notes 12 17 Installation manual 4. 0 Installation - step by step 4. 1 Preparations and guidelines · All necessary cables should be routed to the intended installation point. · The thermostat is designed for installation in a surface mounted box or recessed box with the correct dimensions. [. . . ] · If the unit has never been activated before, configure basic settings as described in section 4. 6. · (Choose -5 °C if the temperature is to be lowered by 5 degrees). 24 Installation manual Press to confirm. · If normal room heating is installed, we recommend lowering the temperature by no more than approx. · The display returns to normal. INT 25 Installation manual 5. 0 Optional settings 5. 1 Network setup Each network must contain one (and only one) master unit (MAS). · All other units must be either slave units (SLA) or independent units (ALO). [. . . ]