6. Heater Manual Mode and Adjust (Ht)
• The current re-heater output value is displayed as a % of maximum.
• “Ht” indicates the unit is in Heater Manual mode.
• Select the required output with the “UP” and “DOWN” buttons.
Press “ENTER” to activate heater at the required level.
• Pressing the “MENU” button deactives manual mode and moves to
next feature.
7. Control Zone Setup
NOTE: Rickard recommends the MLM Application loaded on a PC
to zone diffusers. See the MLM Commissioning Guide for more
information.
a.
Loop Select (LS)
To bind a diffuser to a control zone the following steps is required:
• The top left character display will indicate ‘LS’ for Loop Select.
• Keep the enter button pressed until the unit beeps.
• The menu will display ‘L and a zone number, ‘00’. If the zone has
been set up previously, that particular zone number will display in-
stead of ‘00’.
• Press enter again and the zone number will flash.
• Use the up/down arrow to select a zone number. A new installation
should always start with zone ‘1’.
•Press enter and observe the ‘L’ flashing.
• Go to the first diffuser in that zone and press the button on the
MLM Diffuser Controller board, this is normally situated on the trim
disk.
• After a few seconds the Setup Module will beep and the flashing
LED on the MLM DC board will stay switched on momentarily this
indicates the diffuser is set up for that control zone.
• Go to the next diffuser in that zone and press the button again and
observe the same result. During this time the ‘L’ indicator will flash
and the zone number will be on displayed.
• Continue the process until all the diffusers in the control zone have
been selected.
•Press the enter button and observe the ‘L’ steady and the zone
number flashing.
• Using the up/down arrows, select the next zone number and con-
firm by pressing enter.
• Using the same procedure, set each diffuser in the control zone.
• A maximum of fifteen control zones (one diffuser per zone) can be
set. A minimum of one zone with one to fifteen diffusers (slaves) can
be set up.
• Press enter again to exit the last zone that was set.
• To advance to the next menu, press the menu button.
b. Control Input Select (rS)
The next function is to select the setpoint, control and supply air
temperatures for a particular control zone. As mentioned, to use this
function the setup module must be connected to a diffuser in the
control zone of interest. In a default system with only one wall-stat
or one analog module connected to a control zone this function will
not be required.
• The display will indicate ‘tS’ in the top left character display.
• The character display will indicate the current status of the three
control inputs as follows:
‘o’ - indicates ‘on-board’ for analog module.
‘r’ - indicates ‘remote’ for wall-stat
‘-‘ - indicates not selected
• Press and hold the enter button until the unit beeps. The first char-
acter will flash with the display indicating ‘t’ for control temperature
selection.
• Pressing the up/down arrows will toggle between remote or on-
board temperature selections. Be sure to select a valid option, i.e.
when selecting ‘remote’ there must be a wall-stat connected to that
particular control zone.
• Press enter and the character ‘S’ will show to indicate setpoint se-
lection. The up/down arrows will toggle this function.
• Press enter to select the supply air input, character ‘C’. The arrow
buttons will toggle between ‘o’, ‘r’ and ‘-‘ if supply air measurement
is not required.
• On pressing enter again the three characters will flash until the
system has accepted the new setup.
• Press the menu button to exit this function.
•To advance to the next menu, press the menu button.
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