Mitsubishi Electric M Series Manual page 561

M series
LOCKING THE OPERATION MODE OF THE AIR CONDITIONER (COOL, DRY, HEAT)
• Description of the function:
With this function, you can lock the operation mode of the outdoor unit. Once
the operation mode is locked to either COOL/DRY mode or HEAT mode, the
air conditioner operates in that mode only.
* Initial setting is required to activate this function. Please explain about this
function to your customers and ask them whether they want to use it.
[How to lock the operation mode]
1) Be sure to turn off the main power for the air conditioner before making the
setting.
2) Set the 1st Dip Switch of SW1 on the outdoor controller board to ON to en-
able this function.
3) To lock the operation mode in COOL/DRY mode, set the 2nd Dip Switch of
SW1 on the outdoor controller board to OFF. To lock the operation in HEAT
mode, set the same switch to ON.
4) Turn on the main power for the air conditioner.
LOWERING THE OPERATION NOISE OF THE OUTDOOR UNIT
• Description of the function:
With this function, you can lower the operating noise of the outdoor unit when
the operation load is small, for example, during nighttime in COOL mode.
However, please note that the cooling and heating capacity can also be low-
ered if this function is activated.
* Initial setting is required to activate this function. Please explain about this
function to your customers and ask them whether they want to use it.
[How to lower the operating noise]
1) Be sure to turn off the main power for the air conditioner before making the
setting.
2) Set the 3rd Dip Switch of SW1 on the outdoor controller board to ON to en-
able this function.
3) Turn on the main power for the air conditioner.
CHANGING THE AMPERE LIMIT
• Description of the function:
With this function, you can change the current that flows in the outdoor unit.
Note:
Use this function only when the amount of current exceeds the allowed value.
[How to change the ampere limit]
1) Be sure to turn off the main power for the air conditioner before making the
setting.
2) Make the setting referring to the table below.
3) Turn on the main power for the air conditioner.
MULTI SYSTEM Inverter Heat Pump
COOL/DRY HEAT
Lower the operating
noise
SW2 MXZ-5B100VA
10.5 A
15.5 A
Factory setting
Full
MXZ-4B80VA
10.5 A
15.5 A
Factory setting
Full
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