MDV 12,000k BTU Installation instructions

Maintenance and
Disassembly
Page 1 
1. Disassembly
1.1 Indoor unit
1. Front Panel
Procedure Illustration
1) Hold the front panel by the tabs on
the both sides and lift it (see CJ_AB_
INV_001).
2) Push up the bottom of an air
filter (step 1), and then pull it out
downwards (step 2) (see CJ_AB_
INV_002).
CJ_AB_INV_001
CJ_AB_INV_002
Note: This section is for reference only. Actual unit appearance may vary.
Front Panel
Tab
Filter

Maintenance and
Disassembly
Page 2 
Procedure Illustration
1) Open the horizontal louver and push
the hook towards left to open it (see
CJ_AB_INV_003).
2) Bend the horizontal louver lightly by
both hands to loosen the hooks, then
remove the horizontal louver (see
CJ_AB_INV_004).
CJ_AB_INV_003
CJ_AB_INV_004
Note: This section is for reference only. Actual unit appearance may vary.
Horizontal Louver
Hook
Hook

Maintenance and
Disassembly
Page 3 
Procedure Illustration
3) Pry the electrical cover by a screw
driver, and rotate it towars left, then
remove it. (see CJ_AB_INV_005).
4) Disconnect the connector for display
board. (see CJ_AB_INV_006) .
CJ_AB_INV_005
CJ_AB_INV_006
Note: This section is for reference only. Actual unit appearance may vary.

Maintenance and
Disassembly
Page 4 
Procedure Illustration
1) Slid the front panel side to side to
release each axis (see CJ_AB_INV_007)
2) Open the screw cap and then remove
the 3 screws (see CJ_AB_INV_008).
CJ_AB_INV_007
CJ_AB_INV_008
Note: This section is for reference only. Actual unit appearance may vary.

Maintenance and
Disassembly
Page 5 
Procedure Illustration
3) Release the hooks with hands.(see
CJ_AB_INV_009)
4) Release the 5 hooks in the back (see
CJ_AB_INV_010).
5) Pull out the panel frame while
pushing the hook through a clearance
between the panel frame and the heat
exchanger. (see CJ_AB_INV_011)
CJ_AB_INV_009
CJ_AB_INV_010
CJ_AB_INV_011
Note: This section is for reference only. Actual unit appearance may vary.
Hooks

Maintenance and
Disassembly
Page 6 
Procedure Illustration
1) Release the 5 hooks of the vertical
blades, then pull the vertical blades
rightward and remove it (see CJ_AB_
INV_012).
2) Remove 1 screw of the display board.
(see CJ_AB_INV_013).
3) Rotate the display board in the
direction shown in the right picture.
(see CJ_AB_INV_013).
CJ_AB_INV_012
CJ_AB_INV_013
Note: This section is for reference only. Actual unit appearance may vary.
Hooks

Maintenance and
Disassembly
Page 7 
2. Electrical parts (Antistatic gloves must be worn.)
Note: Remove the front panel (refer to 1. Front panel) before disassembling electrical parts.
Procedure Illustration
1) Cut the ribbon by a shear, then pull
out the coil temperature sensor (T2)
(see CJ_AB_INV_014).
2) Remove one fixing screw of the
electronic control box and two screws
used for the ground connection (see
CJ_AB_INV_014).
3) An upward force is maintained until
the cover of electronic control box is
removed (see CJ_AB_INV_015).
CJ_AB_INV_014
CJ_AB_INV_015
Note: This section is for reference only. Actual unit appearance may vary.
CJ_AF_011-1
Ribbon
T2 Sensor
Ground Screws

Maintenance and
Disassembly
Page 8 
Procedure Illustration
4) Remove the fixed devices of the
connectors (see CJ_AB_INV_016).
5) Disconnect the connectors of fan
motor, the step motor and the T2
sensor (see CJ_AB_INV_017).
6) Open the left side plate of electronic
control box (see CJ_AB_INV_018).
CJ_AB_INV_016
CJ_AB_INV_017
CJ_AB_INV_018
Note: This section is for reference only. Actual unit appearance may vary.

Maintenance and
Disassembly
Page 9 
Procedure Illustration
7) Open the two clips on the front of the
electric box. (see CJ_AB_INV_019)
8) Open the upper cover plate of
electronic control box (see CJ_AB_
INV_020).
CJ_AB_INV_019
CJ_AB_INV_020
Note: This section is for reference only. Actual unit appearance may vary.

Maintenance and
Disassembly
Page 10 
Procedure Illustration
9) Remove 1 screw and open the 2 clips
along the direction indicated in right
image (see CJ_AB_INV_021).
10)Pull out the electrical main board
along the direction indicated in right
image to remove it (see CJ_AB_
INV_022).
CJ_AB_INV_021
CJ_AB_INV_022
Note: This section is for reference only. Actual unit appearance may vary.