Part No
.: INST-RICKWS
08/12
Page
3
of
5
Start Up
On power up or if a reset command from the MLM application is being executed,
the display will initially indicate the WS firmware revision number, with the function
characters indicating
Ur
. The display shown here indicates version 2.05. After a few
seconds the display will revert to the default temperature display and the diffuser
will enter the initialization mode.
Initialising
The top and bottom end-stop bars will flash to indicate the diffuser is in initialization
mode. During this phase, the diffuser is being driven to the maximum open position
to reference the actuator position. The down arrow will display to indicate
movement towards the open end-stop. Once the maximum open position has been
reached, the diffuser will enter control mode. If at this point the diffuser zone
grouping has been commissioned, the diffuser will enter the heating or cooling
modes of operation. If the diffuser zone grouping has not been set up, with the
default zone number still set to zero, the diffuser(s) will remain static in this initialize
state. Note: Should the up and down arrows flash simultaneously, it indicates the
actuator motor is in the over-current condition.
Temperature Display
The default display shows room temperature. The top left function display shows the
temperature source:
Control temperature not selected – the display shows the space temperature measured
by the wall-stat. No temperature is selected for control purposes.
Onboard Control temperature – the display shows onboard temperature, as measured
inside the diffuser. This temperature is used for the room temperature control.
Remote Control temperature – the display shows temperature, as measured by the
wall-stat. This temperature is used for the room temperature control.
Set point Selection
Set point selection is achieved by pressing either the up or down arrow button
momentarily. The buzzer will sound once, the
SP
icon will switch on and the current
set point value will show on the digital display. The default value is 22°C (71°F). The
top left function digits will indicate respectively the source of the set point and
which set point is active. If the function display shows
r1
, it indicates the ‘remote
set point’ (wall-stat) is the temperature source and set point 1, i.e. ‘normal control’
is currently active. Should the function digits show
o2
it indicates an onboard-
master controller (inside the diffuser) is where the set point is activated and the
back-off set point is active at the current time. By pressing the up or down buttons
the set point value will increment or decrement in 0.5 degree intervals. Please note only
set point 1, for normal control can be edited by this function. Pressing the enter
button (right bottom) will exit the set point function.
