Setting Frost Protection Mode - LightwaveRF JSJS LW901 Operation Manual

Setting frost protection mode

If you do not want the room to be heated, the valve
can be closed. It will only be opened again if there is a
risk of freezing due to frost. Limescale protection
measures remain in place.
To activate this, proceed as follows:
1. In manual mode (Manu), press and hold the left
arrow button (decrease temperature) until "OFF"
appears on the display.
2. To end, exit manual mode (Manu) or press the right
arrow button (increase temperature).
NOTE: If the RF range between the transmitter and
receiver is too great to achieve reliable operation, the
LightwaveRF SIGNAL BOOSTER may be used in
conjunction with this product to increase the signal
strength over greater distances.