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8.19.2 System-changeover set-up (Step 1)
Monitor the System-changeover setting details set in AG-150A/G-50A.
[Procedure]
1) Click the [Monitor] button or [All monitors] button.
If the System-changeover has already been set, the setting details will appear.
Set the AG-150A/G-50A subject to the System-changeover control.
[Procedure]
1) Use the “
” button to select the AG-150A/G-50A No.
Click the “
” button to select the AG-10A/G-50A subject to the System- changeover control.
Set the change mode for each mode change block.
[Procedure]
1) Use the “
” button to select the change mode.
Click the “
” button to select the change mode for each mode change block.
Change mode Control details
Nothing
The System-changeover
(automatic cooling/heating switching) function is
deactivated. (Default)
Representation group
(Main group)
The mode is changed between cooling and heating based on the set temperature and
intake temperature of the set representation indoor group.
* When the air conditioning units in the ”Representation group” are stopped or operated in the FAN
or AUTO mode, “Averaging” mode is used instead of the “Representation group” mode to control
the system.
Averaging
The mode is changed between cooling and heating based on the performance rate, set
temperature and intake temperature of each indoor group in the mode change block.
* The operation mode of the groups of units that are stopped or operated in the FAN or AUTO
mode will not be changed.
Note:
• Only the M control indoor unit of CITY MULTI is subject to control. The A-control and K-control
indoor units are excluded.
• The mode of operation is not switched to the indoor unit under Stop and Fan operation.
• The mode change block is a collection of the indoor units in a refrigerant system unit.
If the group which the refrigerant system straddled exists, those refrigerant systems will
become one mode change block.
• R2 also will appear as the choice for the setting, but do not select it.
• The system-changeover function of the AG-150A/G-50A units should not be used together with
the system-changeover function of the outdoor units.
Group in mode change over
block display field
The groups in the block are displayed.
Mode change over block selection
field
Set the operation mode for each change over block.