Mitsubishi SC-SL4-AE User Manual page 25

4 Setting the representative unit and demand
10. Directly press a unit name to select the unit from the list of Unit Entry.
11. Press the Rep. cell.
That unit is set as the representative unit, and an asterisk is placed to the left of its name in the display.
· Representative unit: unit for which the status is shown when the group is displayed
12. Press the Demand cell.
That unit is set as for the demand operation, and a mark such as D1, D2, or D3 is placed to the right of its
name.
· Demand: A unit that shifts its set temperature by 2 deg C or switches to fan mode when there is an
external demand input, and then cannot be operated from the remote controller.
Note
By the demand input, it is possible to save on power costs by reducing the power consumption.
Operation of the unit when demand input is released, is conformed to nearest schedule before release time
of the day.
In case schedule of the day is not set, the unit is for the operation mode and remote controller permission/
prohibition setting which is just before the demand input.
Up to three demand levels can be set. In level 1, the set temperature of the air conditioner set to D1 shifts by
2 deg C (+2 deg C in cooling or dry mode or -2 deg C in heating mode). In level 2, the units set to D1 or D2
switch to fan mode. In level 3, the units set to D1, D2, or D3 switch to fan mode.
* To use the demand control, a demand signal must be inputted. For more information, contact your installation
contractor or dealer.
5 Setting and unsetting batch operation for the group
13. Press the VALID or INVALID button.
· VALID: group set up for batch operation
· INVALID: group not set up for batch operation
6 Saving the settings
14. Press the SET button. Press the Yes button on the confi rmation screen.
The group settings are saved. When you do not want to save the settings, press the No button.
Note
• 1 to 16 units can be registered in a group.
• When you will delete all group defi nition, press the DELETE ALL SETTING button and enter your password
Press the Yes button on the confi rmation screen.
Caution
All schedule settings are deleted too.
Attention
If an unconnected air conditioner is registered in a group, a "Communication error" may occur, affecting
communication of the whole system and causing an unintended operation to be performed. Do not register
unconnected units in a group.
Also note that, at the initial setting, one air conditioner is registered in one group in advance. If the unit is
an unconnected unit, it must be deleted individually. It is recommended that, when registering new groups,
you press the "DELETE ALL GROUPS" button to delete all groups once, and then register groups for
connected units. That certainly is an easier way to confi gure the settings as well as a sure method to prevent
communication errors.
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