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BT79L983H01
3. Installation procedure
( 1) Remove the panel.
(2) Remove the front and side electrical box covers (2 screws each). <Photo 1 >
(3) Disconnect the connectors below. <Photo 2>
CNMF : For fan motor
CN44 : For indoor coil thermistor
CNV
: For vane motor
(4) Disconnect the connector for ground wire (Green/Yellow). <Photo 3>
(5) Remove the screw on lower side of the electrical box. <Photo 3>
Afterwards, remove the electrical box.
(6) Disconnect the all connectors. <Photo 4>
(7) Remove the indoor controller board. <Photo 4>
(8) Remove the screw that holds the terminal block. <Photo 3>
Remove the screw that secures the ground wire (Black). <Photo 3>
Remove the lead wire from the hook and remove the power terminal block. <Photo 5>
(9) Secure the terminal block CD with the screw® and the ground wire (Black) with the screw. <Photo 6>
Hang the lead wire of the terminal block CD. <Photo 5>
*
Route the lead wire so that it does not stick out to the side cover side. It may cause wire breakage.
(10) Restore the removed parts.
<Photo 1 >
Electrical box cover (front)
Electrical box cover (side)
<Photo 4>
Indoor controller board
4. Electric wiring
<Photo 2>
Connector CNMF (White)
.
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.
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Connector
CN44 (White)
<Photo 5>
Hook
Connector
CNV(White)
Be sure to do the electric wiring according to the indoor unit installation manual.
5. Affix the labels enclosed with the manual of indoor unit
near the electric wiring diagrams of both indoor and outdoor units.
Three types of labels (labels A-C) are provided: Affix the label B.
(Separate indoor unit/outdoor unit power supplies ... Label B)
6. DIP switch settings of the outdoor unit control board
It is necessary to change the settings of DIP switch on the outdoor unit control board.
Outdoor unit DIP switch settings
(when using separate indoor unit/
outdoor unit power supplies only)
SWB-3:ON
7. Test run
ON
llf3l
OFF[I}fil <SW8>
Perform a test run according to the installation manuals of the indoor and outdoor units.
<Photo 3>
<Photo 6>
Screw of terminal block
Terminal block
Terminal
block
GJ
♦
Screw®
Ground wire (Black)
MITSUBISHI ELECTRIC CORPORATION
HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
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