Mitsubishi Electric M Series Manual page 188

WALL-MOUNTED Inverter Heat Pump
CONNECTING WIRES FOR INDOOR UNIT
You can connect indoor/outdoor lead wire without removing the front panel.
1) Open the front panel.
2) Remove VA clamp.
3) Pass indoor/outdoor unit connecting wire (A) from the back of the indoor unit and proc-
ess the end of the wire.
4) Loosen terminal screw, and connect first the earth wire, then indoor/outdoor unit con-
necting wire (A) to the terminal block. Be careful not to make mis-wiring. Fix the wire
to the terminal block securely so that no part of its core is appeared, and no external
force is conveyed to the connecting section of the terminal block.
5) Firmly tighten the terminal screws to prevent them from loosening. After tightening, pull
the wires lightly to confirm that they do not move.
6) Secure indoor/outdoor unit connecting wire (A) and the earth wire with the VA clamp.
Never fail to hook the left claw of the VA clamp. Attach the VA clamp securely.
Terminal block
15 mm
35 mm
Lead wire
• For future servicing, give extra length to the
connecting wires.
• Make earth wire a little longer than others. (More
than 60 mm)
• Do not fold the excess wire, or cram it into small
space. Take caution not to damage the wires.
Note: Do not place the wires between the in-
door unit and the installation plate (1). Damaged
wire could cause heat generation or fire.
CONNECTING WIRES FOR OUTDOOR UNIT
1) Open the service panel.
2) Loosen terminal screw, and connect indoor/outdoor unit connecting wire (A) from
the indoor unit correctly on the terminal block. Be careful not to make mis-wiring. Fix
the wire to the terminal block securely so that no part of its core is appeared, and no
external force is conveyed to the connecting section of the terminal block.
3) Firmly tighten the terminal screws to prevent them from loosening. After tightening,
pull the wires lightly to confirm that they do not move.
4) Connect power supply cord (K).
5) Fix indoor/outdoor unit connecting wire (A) and power supply cord (K) with the cord
clamp.
6) Close the service panel securely.
Terminal block
15 mm
35 mm
Lead wire
C-186
VA clamp
Fixing screw
Indoor/outdoor unit
connecting wire (A)
Indoor terminal block
Earth wire
(green/yellow)
Indoor/outdoor
unit
connecting wire
(A)
Outdoor terminal block
• Make earth wire a little longer
than others. (More than 60 mm)
• For future servicing, give extra
length to the connecting wires.
Indoor/outdoor unit connecting wire (A)
Power supply cord (K)
Power supply
cord (K)
Cord clamp
<GE25, 35, 42>
Cord clamp
<GE50>
Drain Piping
• If the extension drain hose has to pass through a room, be sure to wrap it with com-
mercially sold insulation.
• The drain hose should point downward for easy drain flow. (Fig. 1)
• 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. (Fig. 2)
• When connecting the drain hose to the hard vinyl chloride pipe, be sure to insert it
securely into the pipe. (Fig. 3)
Drain
hose
Downward
slope
Soft hose
I.D. 15 mm
Fig. 1 Fig. 2
Do not make drain piping as shown below.
Accumulated
Do not raise
drain water
Air
Water
Water
Waving
leakage leakage
TEST RUN
1) Insert power supply plug into the power outlet and/or
turn on the breaker. Check that all LED lamps are not lit.
If they are blinking, check that the horizontal vane is in-
stalled correctly. Refer to operating instructions for details.
2) Press the E.O. SW once for COOL, and twice for HEAT
operation. Test run will be performed for 30 minutes. If
the upper lamp of the operation indicator blinks every 0.5
seconds, inspect the indoor/outdoor unit connecting wire
(A) for mis-wiring. After the test run, emergency mode (set
temperature 24ºC) will start.
3) To stop operation, press the E.O. SW several times until
all LED lamps turn off. Refer to operating instructions for
details.
Checking the remote (infrared) signal reception
Press the ON/OFF button on the remote controller (6) and check that an electronic sound
is heard from the indoor unit. Press the ON/OFF button again to turn the air conditioner
off.
• Once the compressor stops, the restart preventive device operates so the compressor
will not operate for 3 minutes to protect the air conditioner.
AUTO RESTART FUNCTION
This product is equipped with an auto restart function. When the power supply is stopped
during operation, such as during blackouts, the function automatically starts operation in
the previous setting once the power supply is resumed. (Refer to the operating instruc-
tions for details.)
M series
Drain hose
Hard vinyl chloride
70 cm or
pipe I.D. 30 mm
more
Insert
securely
Different
diameter joint
Fig. 3
Tip of drain
At least
hose dipped
50 mm
in water
gap
Water
Ditch
leakage
Emergency
operation switch
(E.O. SW)