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[ VII Control ]
3. Peak-demand control operation
Peak-demand control is a function used to control the power consumptions of the units.
The compressor's maximum operating frequency will be controlled according to the peak-demand control
signal.
Set the dip switches on the circuit board as follows to make the settings for the items described in this section.
Press the push switch SWP3 to enable the configuration changes.
Press the push switches SWP1 (↑) or SWP2 (↓) to increase or decrease the value.
When the desired value is displayed, press SWP3 to save the setting value.
Settings table
Dip switch
No.
setting
Dip switch setting (SW4)
(SW7-1)
ON
1
ON
1
2
3
4
ON
2
O
N
2
3
4
1
4. Remote water temperature or capacity control ratio setting input signal type
When SW5-7 is ON, SW5-8 is OFF, and SW5-9 is OFF, external analog signals can be used to set the water
temperatures.
When SW5-7 and SW5-8 are ON, external analog signals can be used to set the capacity control ratio.
Analog input type can be selected from the following four types:
4-20 mA
1-5 V
0-10 V
2-10 V
Select SW6-1 and SW6-2 to set the type of analog input signal from a remote location.
Set the dip switches on the circuit board as follows to change the settings.
4-20 mA
ON
1-5 V
OFF
0-10 V
OFF
2-10 V
OFF
*Incorrectly setting SW201 may cause damage to the circuit board.
ON
1
2
3
4
5
6
7
8
9 10
HWE20010
Setting Item
Peak-demand control signal input
source
5
6
7
8
9 10
Maximum peak-demand capacity
5
6
7
8
9 10
SW201-1
SW201-2
ON
ON
OFF
OFF
The figure at left shows that the switches 1 through 5 are set to ON and 6 through 10 are set to OFF.
Initial
Unit
value
0
-
100
%
SW6-1
SW6-2
OFF
OFF
ON
OFF
OFF
ON
ON
ON
- 86 -
Setting
Increments Lower
Upper
limit
limit
1
0
1
1%
60
100
Setting change from
an optional remote
controller
(PAR-W31MAA)
Not possible
Not possible
GB
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Troubleshooting
