Hitachi UTOPIA R32 Series Technical Catalogue page 108

10 Electrical wiring
DIP and RSW switches settings
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DSW301: Test run mode
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DSW302: Piping Length Setting (Setting is required)
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DSW1: For test run
When set pin number 1 to ON, the electric current
detection is cancelled. Pin number 1 should be set
back to OFF after electrical work.
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DSW2: Optional function setting
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DSW3: Capacity Setting (No setting is required)
100 TCGB0136 rev.1 - 05/2021
Setting before shipment
Cooling
Heating
Forced stop of compressor
Setting before shipment
Pipe length (<5m)
Pipe length (≥30m)
Factory setting
Optional function setting
External input / output setting mode
Annual cooling
Factory setting