OJ Electronics WLM-1FS User Manual
Master with display type WLM
U S E R M A N U A L
Lager
nummer: 57543A 10/04 (BJ)
Day temperature
Temperature set point for all thermostats not part of a clock thermostat group.
Push (
) accept and (
) (
) to adjust the set point.
Night temperature
When activated via an external timer, this action is valid for all thermostats connected to the master. Night setback can also
be activated on individual thermostats (WLTM & WLTD) by using the selector switch and setting to the “night” position. A
clock thermostat (WLCT) will automatically switch to night setback at the times programmed into it, as will all the other
thermostats which are included in its group.
OFF temperature (frost protection)
All thermostats with an override switch (WLTM & WLTD) can be set to an OFF position. This is known as a frost protection
position, and if the temperature in the room shoud fall as low as 5°C, the heating will be enabled to prevent frost damage.
The 5°C level can be changed in the master module.
Max limit temperature for thermostats with limit sensor (floor sensor)
Min limit for thermostats with limit sensor (floor sensor)
20.0ºC
15.0ºC
5.0ºC
27.0ºC
17.0ºC
Introduction
The masters type WLM-1FS and WLM-3FS are provided with graphic display to
enable simple programming and operations of the unit to be achieved using
simple and easy to understand icons and symbols.
Moving around in the menu
By using the (
) (UP), and the ( ) (DOWN) you move through the main menu into
sub menus. The description of these submenus can be seen below. If a value
needs to be changed, then press ( ) (CONFIRM) button once, and alter the value
with the ( ) (UP) and ( ) (DOWN ) buttons. Then press ( ) (CONFIRM) to accept
the new value.
If you wish to reset the master to factory settings, then push the ( ) (CONFIRM)
button for 10 sec. until the 6 outputs starts blinking. The master has now been
reset to factory settings.
Control of room temperature
Within the memory of the master, there is a room temperature Setpoint which will
apply for all rooms connected to the system. This setting is at 20°C when the unit
leaves the factory, but it can be increased or decreased as required. Any change will apply to all rooms on the system unless a clock thermostat is employed
(see next para).
Using clock thermostat (WLCT-19):
If a clock thermostat is used as a zone control for one room or a group of rooms, then all the thermostats within this zone will operate according to the
temperatures and times defined in the clock thermostat. However the local thermostats within the group are still capable of being adjusted by ± 4˚C so that
some rooms can be set higher or lower than others. The decision as to which thermostats will form part of the clock thermostats group is made by
programming the clock thermostat (see instructions for WLCT unit). Any thermostats that are not part of the clock thermostats’ group will operate to the
temperature as defined in the master control, but again with the option of local ±4°C adjustment.
Using external switch for night setback:
The day temperature set point is defaulted to 20°C and the night temperature to 15°C. These default settings can be changed on the master.
The current operating set point of the master can be changed from the day temperature into night temperature, by connecting a separate timing device to
the master. When the external switch or timer is used to switch to night setback, this will override any time settings in a WLCT clock thermostat, including
any thermostats that are part of a group allocated to that clock thermostat.
Return to main menu
If you are in a submenu and push UP (
) and DOWN ( ) at the same time you jump back to the menu start position.
Limitation of floor temperatures