Hitachi SAMURAI CLG2, Manual, Page: 54 / 118

Controller Adjustment
Technical Catalogue
TCGB0051 rev 0 - 09/2009
54
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Manual Set Switch A = DSW3
* Compressor Forcedly Stop Mode Setting Switch *
Switches “DSW3-1” is for No.1 compressor, “DSW3-2” for No.2.
If necessary to stop any compressors, turn these switches (DSW3-1, DSW3-2) to the OFF side, the
compressors corresponding to these switches are turned to the OFF side will be stopped.
The figures of the DSW3 switch are initially set as follows depend on the compressor quantity.
This switch is for servicing, therefore, all the compressors shall be ON for normal operation.
Figure
1 2 3 1 2 3
Location
ON OFF OFF ON ON OFF
Model 1 Comp. System 2 Comp. System
Setting at the figures from 4 to 10 of the DSW3 switch should not be permitted (always at OFF side).
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NOTE:
The figures 2, and 3 of DSW3 which are Not corresponding to the equipped compressor number are always turned to the OFF
side.
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Manual Set Switch B = DSW4
The figure 2, 6 and 7 of the DSW4 switch must be turned to the ON side.
Setting at the figures 1, 3, 4, 5, and 8 of the DSW4 switch should not be permitted (always at OFF side).
The figures 9 and 10 of DSW4 switch are for compressor size setting as follows.
Figure
9 10 9 10 9 10
Location OFF ON ON OFF ON ON
Compressor
40 HP 50 HP 60 HP
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Selection Switch for Cooling/ Heating Operation = SW8
= All model in this series are for cooling only. So that Heating function is Not available.
The SW8 Selection Switch must be turned to the upper side.
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Selection Switch for Local/ Remote Operation = SW6
= Local operation is standard. So that the SW6 selection switch is turned to the upper side.
If Remote operation is required, the SW6 selection switch is turned to the lower side.
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Selection Switch for Local/ Remote Pump Operation = SW7
= The SW7 selection switch is turned to the lower (“OFF”) side as remote setting.
If local operation is required, the SW7 selection switch is turned to the upper side.
by Chiller (See wiring diagram).
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Other Switches = SW5, DSW6, RSW9 and DSW1
This control panel is equipped with other switches:
The SW5 selection switch for chilled water/brine water, so that this switch must be turned to the
upper side
( “water” ). DSW6 and RSW9 for operation mode and setting change of these switches are not available.
The figure 2 of DSW6 must be turned to the upper side.
It is recommended that the setting is not changed at site.
Also, the DSW1 switch is equipped with. This switch is used for only checking, resulting in easy
troubleshooting.