Mitsubishi Electric M Series Manual page 181

M series
INDOOR UNIT INSTALLATION
CONNECTING WIRE SPECIFICATIONS
•
Use special room air conditioning circuit.
Power supply cord length
(Lead to left/Lead to right)
Indoor/outdoor unit connecting wire
Specification
Never cut the indoor and outdoor unit connecting wire and connect it to other wires.
It may cause a fire.
INDOOR AND OUTDOOR CONNECTING WIRE CON-
NECTION
You can connect indoor/outdoor lead wire without removing the front panel.
Open the front panel.
Remove one screw holding the electrical cover, then remove the cover.
Remove the VA clamp and the cord clamp.
Pass the indoor/outdoor unit connecting wire from the back of the indoor unit and
process the end of the wire, then connect it to the terminal block.
Replace the fixture and electrical cover securely.
Indoor
terminal block
VA clamp
Indoor/outdoor unit connecting wire
A
•
Use the indoor/outdoor unit connecting wire that meets the Standards to connect
the indoor and outdoor units and fix the wire to the terminal block securely so
that no external force is conveyed to the connecting section of the terminal block.
Incomplete connection or fixing of the wire could result in a fire.
•
Attach the electrical cover securely. If it is attached incorrectly, it could result in a
fire or an electric shock due to dust, water, etc.
Loosen terminal
screw.
15 mm
35 mm
Terminal
block
Lead wire
<Connection details>
WALL-MOUNTED Cooling Only/Fixed Speed Heat Pump
1 m/2 m
Cable 2-core 1.0 mm , in conformity
2
with Design 60245 IEC 57.
WARNING
ELECTRICAL COVER
Fixing screws
Never fail to hook the left claw on
the wire fixture to secure indoor/
outdoor unit connecting wire A . A
Securely push the wire into
the terminal block until no
part of its core is appeared.
WARNING
3 N
Indoor terminal block
Indoor/outdoor unit
connecting wire
2-core 1.0 mm
3 N
Outdoor terminal block
• Be careful not to make mis-wiring.
• Firmly tighten the terminal screws to prevent them from loosening.
• After tightening, pull the wires lightly to confirm that they do not move.
• If the connecting wire is incorrectly connected to the terminal block, the unit does
not operate normally.
• If an earth is incorrect, it may cause an electric shock.
AUTO RESTART FUNCTION
•
These models are equipped with an auto restart function. If you do not want to use
this function, please consult the service representative because the setting of the unit
needs to be changed.
•
When the indoor unit is controlled with the remote controller, the operation mode,
the set temperature, and the fan speed are memorized by the indoor electronic
control P.C. board. The auto restart function sets to work the moment the power
has restored after power failure, then, the unit will restart automatically. If the unit is
operated in "I FEEL..." or "AUTO" mode before power failure, the operation mode
(COOL, DRY or HEAT) is not stored in the memory. When the main power is turned
on, the unit decides the operation mode by the initial room temperature at restart and
starts operation again.
Operation
If the main power has been cut, the operation settings remain.
When three minutes have passed after power was restored, the unit will restart
automatically according to the memory.
Notes:
• The operation settings are memorized when 10 seconds have passed after the
remote controller was operated.
• If the main power is turned off or a power failure occurs while AUTO START/STOP
timer is active, the timer setting is cancelled. As these models are equipped with an
auto restart function, the air conditioner starts operating with timer cancelled at the
same time that power is restored.
• If the unit has been off with the remote controller before power failure, the auto
restart function does not work as the power button of the remote controller is off.
• To prevent breaker off due to the rush of starting current, systematize other home
appliances not to turn on at the same time.
DRAIN PIPING
•
The drain hose should point downward for easy drain flow. (Fig. 1)
Do not make drain piping as shown in Fig. 2 to 5.
Downward
slope
Water
leakage
( i F . g ) 1
Tip of drain
hose dipped
A
2
in water.
Water
leakage
Ditch
( i F . g ) 4
•
If the drain hose provided with the indoor unit is too short, connect it with drain
hose I that should be provided at your site.
•
If the extension drain hose has to pass through a room, be sure to wrap it with
commercially sold insulation.
CAUTION
Accumulated
drain water
Do not raise.
Water leak-
age Waving
( i F . g ) 2 ( i F . g ) 3
Less than
50 mm gap
( i F . g ) 5
C-179
Air
Drain
hose
Soft hose
I.D.
15 mm or
hard vinyl
chloride