Mitsubishi Electric DPLS2 Installation Manual page 5

Fig 7
7. Submerge the pins in water to check operation. Indoor unit should shut down after approximately 3 minute delay.
8. Disconnect indoor unit power before proceeding to the next step.
9. Determine the best location for the DPLS2 Micro Sensor. Make sure that power has been disconnected. Find the drain pan
below the coil in the indoor unit. It is located directly below the aluminum tins of the coil and is slightly wider than the coil
depending on the style of indoor unit.
10. Wipe all water, dirt and dust from the drain pan with a damp cloth. Temporarily locate the Micro Sensor in the drain pan.
11. Slide pan clip with sensor onto the front edge of the drain pan (Fig 8). Push the sensor down into the pan to a position where
the two sensing tips remain above the condensate level in normal operation, ensure the Micro Sensor is no less than 3/8" from
the bottom of the trough and the panel clips are pushed all the way down on the front edge of the trough (Fig 9).
(These installation instructions are typical for all wall mounted, floor standing, ceiling recessed, and ceiling concealed, and
ceiling suspended units. Location of the micro sensor should be at the drain pan no less than 3/8" from the bottom).
Note: When using pan clip ensure that the sensing tips are pushed below the coil. Sensor tips in contact with the fins of the coil may cause
intermittent safety trips and damage to the sensor tips and/or heat exchanger (fins).
12. If there is no place for pan clip attach the sensor to the coil clip (there are two optional coil clips: 7mm and 5mm).
Clip the coil clip onto the evaporator coil. Insert the coil clip between tins or at the coil U-bend. Position the wires up and senor
pins down. Adjust sensor height by moving the vertical member (with sensor attached) up and down. Sensor pins should be
located above normal condensate level, while below the condensate overflow level. (Fig 10)
13. Temporarily reassemble the front cover of the indoor unit to make sure that it reattaches properly. If there is interference with
the front cover, relocate the Micro Sensor on the drain pan and recheck clearances.
14. Once the best location has been determined for the Micro Sensor, reinstall it in the same manner as described above. Ensure the
Micro Sensor does not touch the bottom of the drain pan and the panel clips are pushed all the way down on the front edge of the
trough (Fig 9).
15. Bundle and tie wrap excess wire. Locate and anchor the excess wire bundles so that they do not interfere with the reassembly
of the cover of the Indoor Unit.
16. Reassemble the Indoor unit cover.
3.
R50043-0519
Fig 8
Turn power on to Indoor Unit and Outdoor Unit.
Fig 9
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Fig 10
Adjustment