Peak-Demand Control Operation - Mitsubishi Electric CAHV-P500YA-HPB Service Handbook

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(4) Peak-demand control operation

Peak-demand control is a function used to control the power consumptions of the units during peak-demand hours.
The number of units in operation and the compressor's maximum operating frequency will be controlled
according to the peak-demand control signal.
Individual system control
Individual unit control
Maximum frequency = Maximum capacity under peak-
Setting procedures
Set the maximum capacity setting on the circuit board.
Step 0
Set the ON/OFF
switch (SWS1) to
OFF.
Step 1
Set the dip switches
SW2 and SW3.
Step 2
Select the desired
item with the push
switch SWP3.
Step 3
Press the push
switches SWP1 (↑)
or SWP2 (↓) to
increase or
decrease the value.
Step 4
Press the push
switch SWP3 to
save the change.
HWE10060
demand control
Set SWS1 to OFF from the remote controller or with the local switch.
Settings cannot be changed unless the ON/OFF setting is set to OFF.
Set the dip switches on the circuit board as follows before making the settings for the items
described in this section.
SW2 SW3
-10 5 6 7
OFF OFF OFF OFF
Press the push switch SWP3 to select item code 2.
Press the push switches SWP1 or SWP2 to change the value of the selected item.
The value will keep blinking while it is being changed.
Settings table
Items that can be set
Maximum capacity setting
Peak-demand control start time
Peak-demand control end time
Press SWP3 once within one minute of changing the setting with SWP1 or SWP2 to save the
setting.
Once the new setting is saved, the display will stop blinking and stay lit. The display will, then,
return to the item code display mode.
If SWP3 is not pressed within one minute, the change will not be saved and the display will
return to the item code display mode.
(*) If the peak-demand control contact is ON, units will operate at the maximum capacity that
was set in the steps above.
Multiple system control
Depending on the peak-demand control setting that is
made on the main unit, the number of units in operation
and the maximum operating frequency of the units in
operation will be adjusted.
8 9 10
OFF ON OFF
Item Initial
Unit
code value
Increments
2 100 %
3 1300 Hour: minute
4 1300 Hour: minute
- 72 -
Setting
Setting change
from an optional
Lower Upper
remote controller
limit limit
5% 0 100 Not possible
1 0000 2359 Not possible
1 0000 2359 Not possible
GB