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Page 14 of 21
Note 1
: The
set point and fan speed of the air curtain cannot be altered
through
the Manual Room Control. The set point is hard coded to 28ºC
*
via dip switch SW2 on
the Mitsubishi Interface PCB in the air curtain. The fan speed is set manually at
commissioning using the 3 speed fan switch inside the air curtain, as described above.
*
for Set Point 26°C use dip switch settings SW2-3 ON, SW2-4 OFF, SW2-5 ON
*
for Set Point 24°C use dip switch settings SW2-3 OFF, SW2-4 OFF, SW2-5 ON
Switch off the electrical power to the Mitsubishi Electric Outdoor Unit and Air Curtain.
Carefully slide the Interface PCB back into place, replacing the Filter Indication
connection if removed earlier. Ensure cables are not trapped inside and refit retaining
screw. The Filter Indicator Schedule can now be changed from its default setting if
required (see page 15). Replace the bottom access panel, air inlet grilles (with filters)
and plastic end caps (see “To gain access inside the Air Curtain” page 7). Power-up
both the Mitsubishi Electric Outdoor Unit and Air Curtain and re-check the operation of
the unit via the Manual Room Control.
Filter Dirty Indicator
The air curtain is fitted with a Filter Dirty Indicator. It is located at
the left-hand end of the outlet grille and signals when the air curtain
inlet grille/filters should be vacuum cleaned or the air curtain
requires servicing.
The indicator states are outlined below:
Indicator State
Indicator Light
Action Required
Reset Button
GREEN FLASH
On 0.5s; Off 3s
None
N/A
RED ON
On permanently
Vacuum inlet
Quick reset
RED FLASH
On 0.5s; Off 0.5s
Service filters
Press for 5s
The filter indicator schedule is based on fan operating hours. For the default schedule,
shown schematically below, the inlet grilles should be vacuum cleaned every 120hrs of
fan operation (every 1 to 2 weeks) and a full service should take place every 480hrs of
fan operation.
START
120 hrs
120 hrs
120 hrs
120 hrs
48
0 hrs
RED ON: Quick reset
RED ON: Quick reset
RED ON: Quick reset
RED FLASH: Hold 5s to reset
Fan o
pe
rat
in
g
ho
urs
