En-14
Switch
Function or operation method
Factory setting
SW1
Push
• For the test run start and stop.
• For the pump down start and stop.
―
SW2
Push
• For when check run function is activated.
• For displaying the check run.
• For resetting the Automatic wiring correction
memory.
―
SET1-1
DIP
• For selecting cooling or heating during test
operation.
OFF
SET1-2
DIP
• For switching SW1 operation.
OFF
SET1-3
DIP
• For switching the base heater.
(36 type only)
45 type: OFF
(Do not change)
36 type: ON
SET1-4
DIP
(Setting prohibited)
OFF
(Do not change)
SET2-1
DIP
• For selecting outdoor unit low noise operation
function.
• To use this function, the Central remote
controller (option) is necessary.
OFF
SET2-2
DIP
(Setting prohibited)
OFF
(Do not change)
SET2-3
DIP
(Setting prohibited)
OFF
(Do not change)
SET2-4
DIP
(Setting prohibited)
OFF
(Do not change)
SET3-1
DIP
(Setting prohibited)
OFF
(Do not change)
SET3-2
DIP
(Setting prohibited)
OFF
(Do not change)
SET3-3
DIP
(Setting prohibited)
OFF
(Do not change)
SET3-4
DIP
(Setting prohibited)
OFF
(Do not change)
Be sure to disconnect the power source or turn off the breaker when changing the DIP
switch.
7. 2. Base heater forced off function
36 type
The power to the Base heater can be cut off by changing the DIP switch setting.
SET1-3
Setting
ON
OFF
Forced off setting
7. 3. Outdoor unit low noise operation function (option)
Change the Outdoor unit low noise operation by using this setting. The Central remote
controller (option) is necessary to use this function.
SET2-1
Setting
ON
Lower
OFF
Low
CAUTION
When the low noise operation function is working, cooling and heating capacity will
decrease.
When changing the settings, please explain to the customer beforehand that the
capacity decreases.
8. CHECK RUN
• The check run is a function to screen and detect any wiring errors.
• After carrying out the check run, you can use the Automatic wiring correction function
to correct the wiring.
* Normal operation is possible without using the check run. In this case, use the test
run or forced cooling function of the indoor unit to con
fi
rm any wiring errors.
8. 1. Things to con
fi
rm before starting the check run.
To ensure safety, check that the following work, inspections and operations have been
completed.
Check Item
Check Column
1
Check that all work on the piping connecting the outdoor unit,
indoor units has been completed
2
Check that all work on the wiring connecting the outdoor unit,
indoor units has been completed
3
Is there a gas leakage? [At pipe connections (
fl
ange connections
and brazed areas)]
4
Is the system charged with the speci
fi
ed volume of refrigerant?
5
Is a breaker installed at the power supply cable of outdoor unit?
6
Are the wires connected to the terminals without looseness, and in
accordance with the speci
fi
cations?
7
Is the 3-way valve of the outdoor unit open? (Gas pipe and liquid
pipe)
8
Is power supplied for more than 12 hours?
8. 2. Restrictions applicable when performing the check run
• When the check run starts, all indoor units connected to the outdoor unit will start
to run automatically. During the check run, you cannot check the operation of the
indoor units separately. After the check run, check the operation of the indoor units
separately in normal operation.
• The check run can be used when the temperature is within the operable temperature
of the air conditioner.
• In the check run, the air conditioner will automatically switch between cooling and
heating depending on the external temperature and internal temperature.
• The check run can be completed in about 30 minutes (cooling) or about 1 hour
(heating), but may take more depending on the external and internal temperature
conditions etc.
• Please do not conduct the check run with all the windows in the room closed.
Otherwise the room temperature could get too low or too high.
• Depending on the difference of the room temperature of each room, a judgment may
be impossible.
• Check run is a special operation so there may be a noise louder than the normal
refrigerant noise or a creaking noise.
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9380545101-02_IM.indb 14
2/26/2016 10:16:04 AM
2/26/2016 10:16:04 AM
