Fig. 3
p. 44
Setting of Room sensor Operating Mode
Setting of Room Temperature
If the WLTM-19 or WLTD-19 Room sensor has been allocated to a WLCT controlled area, then when
AUTOMATIC mode has been chosen with the built-in slide switch, the temperature settings will be as
programmed in the WLCT Room controller and not in the master, but the same local ±4°C adjustment
is available.
On the Master WLM2-1FS and WLM2-3FS, if the temperature setting is changed, then the default
temperature for all the rooms is changed, but each WLTA, WLTM or WLTD Room sensor is locally
adjustable with its own adjustment knob. With this knob the temperature setting from the Master can
be increased or decreased by 4°C for that specific room.
The master is supplied with default temperature settings which are used by all non Room sensors
that are connected to the system. In Master WLM2-1BA & WLM2-3BA, the DAY temperature setting
is fixed at 21°C and the NIGHT temperature is fixed at 15°C.
In Master WLM2-1FS & WLM2-3FS, the DAY, NIGHT and OFF default temperatures are adjustable
through the display.
Automatic switching between DAY and NIGHT temperatures is done by either connecting a separate
timing device to the master, or using a WLCT Room controller and allocating other Room sensors as
part of its group. It is possible to have two or more Room controllers in the system, with each one
having its own group of non Room controllers.
Room sensors type WLTM-19/29 and WLTD-19/29 have a slide switch (see fig. 4) for selecting the mode
of operation of the controller. Four different modes can be selected: Auto, Day, Night and OFF.
Auto: The controller will follow the temperature settings of the master, or if the Room sensors
belongs to a zone group using a WLCT Room controller, it will follow the automatic sequence of
temperatures and timings set in the WLCT.
Day: It will control the room temperature according to the (DAY) setting defined in the master
(typically 21°C).
Night: It will control the room temperature according to the (NIGHT) setting defined in the master
(typically 17°C).
OFF: It will control the room temperature according to the (OFF) setting defined in the master
(typically 5°C). This setting is intended to be a ”frost protection” mode and is used if the room is
to be left unoccupied for long periods.
WLTM-19/29 & WLTD-19/29 are recommended for guest rooms and other infrequently used rooms, as
they allow simple override of the automatic timing sequence.
