Mitsubishi Electric M-SERIES, Manual

Page: 182 / 586

WALL-MOUNTED Cooling Only/Fixed Speed Heat Pump M series
C-180
INST
ALLA
TION PROCEDURE
W
ALL-
MOUNTED
3 N
3 N
N~ L~
OUTDOOR UNIT INSTALLATION
INDOOR/OUTDOOR UNIT CONNECTING WIRE CON-
NECTION AND OUTDOOR POWER SUPPLY CORD
CONNECTION
•
Connect the indoor/outdoor unit connecting wire from the indoor unit correctly
on the terminal block.
•
For future servicing, give extra length to connecting wire.
Loosen terminal screw.
Terminal block
Lead wire
<Connection details>
Power supply cord K
Indoor terminal block
Outdoor terminal block
Indoor/outdoor unit
connecting wire
2-core 1.0 mm 2
CAUTION
• Use care 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 properly.
WARNING
•
Never cut the power cord and connect it to other wires.
It may cause a fire.
Power supply cord
Specification
3-core 2.5 mm
2
or more, in conformity
with Design 60245 IEC 57.
10 m or less
Indoor and Outdoor
connecting wire
Specification
Cable 2-core 1.0 mm
2
, in conformity with Design 60245
IEC 57.
•
For the power supply cord and the indoor/outdoor unit connecting wires, be sure to
use the ones in compliance with the standards.
•
Be sure to push the core until it is hidden and pull each cable to make sure that
it is not pulled out. Incomplete insertion may cause a risk of burning the terminal
blocks.
• Peel off both ends of connecting wire (extension
wire). When
it is too long, cut the extra length off
before peeling.
Peel off the covering of power supply wire to the
size as shown on the right.
• Be careful not to contact connecting wire with piping.
• Make earth wire a little longer than the others.
(more than 35 mm)
35 mm
15 mm
Rated Voltage Breaker capacity Connect to the supply terminals and leave a contact
separation of at least 3 mm at each pole to disconnect
the source power pole. (When the power switch is
shut off, it must disconnect all poles.)
230 V 25 A
Remove two fixing
screws to open the
service panel.
Service panel
Fixing screws
Be sure to put the left
portion into the square
hole of the service panel.
Be sure to fix the indoor/outdoor unit
connecting wire and power supply
cord using this cord clamp.
Valve cover
WARNING
Be sure to attach the service panel of the outdoor unit securely. If it is not attached
correctly, it could result in a fire or an electric shock due to dust, water, etc.
A
A
A
K
EMERGENCY
OPERATION switch
Mode Operation Indicator lamp
1 COOL
(Light) (Off)
2 STOP
(Off) (Off)
PROCEDURE
•
Press the EMERGENCY OPERATION switch.
Press it once, and after test run for 30 minutes the EMERGENCY COOL MODE starts.
Press it once more, and the operation stops.
(The operation mode changes in order of ~ every time the EMERGENCY
OPERATION switch is pressed.)
MSH type
•
Before performing the test run, recheck any wrong wiring.
Wrong wiring prevents normal operation or results in blown fuse disabling operation.
•
The test run can be started by pressing EMERGENCY OPERATION switch. When
the EMERGENCY OPERATION switch is once pressed, the unit will start the test run
(continuous operation) for 30 minutes.
A thermostat does not work during this time. After 30 minutes the unit will start the
EMERGENCY OPERATION at a fixed temperature setting of 24°C in COOL MODE or
HEAT MODE.
•
Perform test run in the following procedure.
TEST RUN
MS type
•
Before performing the test run, recheck any wrong wiring.
Wrong wiring prevents normal operation or results in blown fuse, which stops
operation.
•
The test run can be started by pressing EMERGENCY OPERATION switch. When
the EMERGENCY OPERATION switch is once pressed, the unit will start the test run
(continuous operation) for 30 minutes.
A thermostat does not work during this time. After 30 minutes the unit will start the
EMERGENCY OPERATION at a fixed temperature setting of 24°C in COOL MODE or
HEAT MODE.
•
Perform test run in the following procedure.
PROCEDURE
•
Press the EMERGENCY OPERATION switch.
Press it once, and after test run for 30 minutes the EMERGENCY COOL MODE starts.
If the left side lamp of the operation indicator blinks every 0.5 seconds, inspect the
indoor/outdoor unit connecting wire for mis-wiring.
Press it once more, and the EMERGENCY HEAT MODE starts.
Press it once more, and the operation stops.
(The operation mode changes in order of ~ every time the EMERGENCY
OPERATION switch is pressed.)
EMERGENCY
OPERATION switch
Mode Operation Indicator lamp
1 COOL
(Light) (Off)
2 HEAT
(Off) (Light)
3 STOP
(Off) (Off)
•
In starting the heating operation, indoor unit fan may not operate to prevent blowing
cool air. Please wait for a few minutes until the temperature of heat exchanger rises
and warm air blows out.
MS type and MSH type
Checking the remote (infrared) signal reception
Press the ON/OFF button on the remote controller and check that an electronic sound is
heard from the indoor unit. Press the ON/OFF button again to turn the air conditioner off.
If the indoor unit is operated with the remote controller, both the
test run and the emergency operation are released by commands
from the remote controller.
•
Once the compressor stops, the restart preventive device operates so the compressor
will not operate for three minutes to protect the air conditioner.
A