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3

Actual temperature setting is shown in the display and the thermostat is ready for use.

Comfort mode

To change the temperature press UP (   ) or 
DOWN (   ) to increase or decrease the tempera-
ture. The display will fl ash for 5 seconds, and will 
then show the new temperature setpoint.

To jump between the two set points press the OK (   ) button

Night, Setback 
temperature

To change the temperature press UP (   ) or 
DOWN (   ) to increase or decrease the tempera-
ture. The display will fl ash for 5 seconds, and will 
then show the new temperature setpoint.

OFF

To turn the thermostat OFF, press DOWN (   ) until 
OFF appears in the display.

DO NOT USE THE TEST BUTTON ON THE GFCI 
TO SWITCH OFF THE HEATING INSTALLATION.
The GFCI will automatically be reset after a dis-
connection of the mains supply

J: Clock function

K: Heating on 

 

 
 

Display symbols

Wake

Night

Setting the thermostat into operation

J

K

Summary of Contents for LX 420

Page 1: ...Table of contents English 2 Fran ais 5 USER MANUAL LX 420 421 088L3353 01 01 57470...

Page 2: ...erature of the floor and not the temperature within the room The thermostat type LXstat 421 has a built in temperature sensor In this configuration the thermostat controls the temperature of the room...

Page 3: ...Night Setback temperature To change the temperature press UP or DOWN to increase or decrease the tempera ture The display will flash for 5 seconds and will then show the new temperature setpoint OFF T...

Page 4: ...tton there could be a ground fault To check whether it is a ground fault or a nuisance tripping press RESET If this cause the red light to shot off and not comes on again it was a nuisance tripping an...

Page 5: ...stat LXstat 421 est dot d un capteur de temp rature int gr Dans cette configuration le thermostat con tr le la temp rature de la pi ce Le thermostat dispose de deux points de consigne r glables un pou...

Page 6: ...p rature appuyez sur les touches de d filement vers le haut ou vers le bas respectivement pour lever ou abaisser la temp rature L affichage clignotera pendant cinq secondes puis indiquera le nouveau p...

Page 7: ...rmale Si le test choue v rifiez le c ble chauffant et le ther mostat Le test du disjoncteur de fuite la terre devrait tre effectu mensuellement Si le disjoncteur se d clenche en mode de fonctionnement...

Page 8: ...ermostat de 0 40 C 32 104 F GFCI 35 65 C 31 149 F Danfoss can accept no responsibility for possible errors in catalogues brochures and other printed material Danfoss reserves the right to alter its pr...

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