Hitachi SET FREE-Serie Bedienungsanleitung Seite 63

ELECTRIC WIRING
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DSW4: test run and service settings
Setting required
setting before
Cooling test run
shipment
ON
1 2 3 4 5 6
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DSW5: emergency operation
Setting not required
setting before shipment
ON
1 2 3 4 5 6
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DSW6: setting outdoor unit number / function setting
Setting required
Module configuration before
shipment
Turn ON the dip switch when use the below functions.
setting item
Outdoor unit No. setting
Cooling operation under low load operation (low
ambient setting)
?
n o t e
The combination setting is necessary in outdoor units consisting of multiple modules. Be sure to perform this setting.
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DSW7: supply voltage setting and system setting
Setting before shipment (400 V)
?
n o t e
• Pin 4 OFF: HEAT PUMP SYSTEM
• Pin 4 ON: HEAT RECOVERY SYSTEM
53 PMML0479 rev.2 - 02/2018
Heating test run
ON
ON
1 2 3 4 5 6
1 2 3 4 5 6
except nº 1 compressor operation
Unit a (nº 0)
forced compressor
stoppage
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
Combination of base unit (*)
Unit B (nº 1) Unit C (nº 2)
Pin no.
1,2,3
4
external input/
function setting
output setting
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
except nº 2 compressor operation
ON
1 2 3 4 5 6
Unit D (nº 3)
important notice
The outdoor unit is not single, the combination
setting is necessary. Be sure to do this setting.
Make sure to apply snow protection hood (field-
supplied)