Mitsubishi Heavy Industries FDT28KXE6A Service Manual page 167

④Installation of indoor unit (continued)
Unit installation
Lid (Right)
Mounting
plate
Wall
Indoor unit base
bottom latch
• To remove the unit from the mounting plate, first remove the right and left lids and then
disengage the indoor unit base bottom latches.
Installation steps
①Hang the upper part of the
indoor unit onto the mounting
plate.
⑤Wiring-out position and wiring connection
● Electrical installation work must be performed according to the installation manual by an
electrical installation service provider qualified by a power provider of the country, and be
executed according to the technical standards and other regulations applicable to electrical
installation in the country.
Be sure to use an exclusive circuit.
● Use specified cord, fasten the wiring to the terminal securely, and hold the cord securely in
order not to apply unexpected stress on the terminal.
● Do not put both power source line and signal line on the same route. It may cause miscom-
munication and malfunction.
● Be sure to do D type earth work.
● For the details of electrical wiring work, see attached instruction manual for electrical wiring
work.
CASE 1 : MODEL 22 56, CASE 2 : MODEL 71
1. Open the intake panel. (Pull the lower part of the intake panel holding both ends, disengage the
latches and then lift it until you feel some drag. The intake panel will stay open at an angle of
about 60°)
2. Remove the screw and detach the cover.
3. Connect the remote control line to the upper one of the two terminal blocks provided in the
control box.
4. Connect the power cable, grounding line and signal line to the lower terminal block.
5. Attach the cover and fasten the screw.
6. Close the intake panel.
(Note)
・Connect each line to terminal block according to number on label of terminal block.
Intake panel
Screw
Cover
● Panel removal steps
1. Remove the cap.(CASE1.only)
2. Remove the fixing screw A and detach the unit
bottom guide.(CASE1.only)
3. Remove the fixing screw B.
4. Pull the lower part of the front panel off the unit
toward you, and then push it up to detach its
upper part from the unit.
(Disengage three hooks located on the top part)
● Panel attachment steps
1. Always remove the air filter beforehand.
2. Place the front panel over the unit.
3. Engage it onto the unit by pressing the areas
marked with in the drawing from the front.
4. Fasten the fixing screw B.
5. Set the air filter.
6. Attach the unit bottom guide and fasten the
fixing screw A.(CASE1.only)
7. Attach the cap.
(Plug it in securely until the end so that it won't
come off easily) (CASE1.only)
Indoor unit
Mounting plate
Latch (2 places)
②Push the lower part of the
indoor unit lightly against the
wall for one-touch installation.
Terminal block for
Remote Controller
Terminal block
Power cable, Earth
Signal line
Cord clamp
REFERENCE FOR CASE 1
Fig.1(CASE1)
Fig.2(CASE2)
Hook
Fixing screw B
Push
-
⑥Shaping of pipes and drain hoses
(When it is routed through the rear)
○Shaping of pipes ○Tape wrapping
Pipe
Drain hose
●Hold the root of the pipe ●Wrap a tape for the length that corresponds to a penetration
to change its direction, through the wall.
straighten it and then ●The connecting wires must be wrapped together with the pipe.
shape it.
(Points for attention when the pipe is routed through the left or the rear of the unit.)
View from the top
Pipe routed through the left
Pipe routed through the left rear
Pipe routed through the left
Steps to change drain hose connection positions
1. Remove the drain hose.
2. Remove the drain cap and heat insulating material.
3. Plug in the drain cap and heat insulating material.
4. Connect the drain hose.
The pipe can be routed through the rear, left,
left rear, right or bottom of the unit.
Right
Rear
Bottom
Left rear
Left bottom
164
-
Make sure that wires are connected
securely onto the terminal block,
before you dress them with a tape
after shaping the pipe.
Pipe routed through the right
Pipe routed through the right rear
Pipe routed through the right
●Turn the drain hose and pull it out.
●Remove it either manually or with pliers.
●Plug the drain cap removed in the step 2
securely into the hole with a hexagonal wrench
or the like.
Note: Pay attention that a drain cap not properly
plugged in can cause a water leak.
●Insert the drain hose securely by turning it.
Note: Pay attention that a drain hose not properly
plugged in can cause a water leak.
Gutter
Pipe space
This air conditioner is designed to collect
dew formed on its back in the drain pan for
Left discharging, so do not lay power cables,
etc. in any part above the gutter.
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