Hitachi YUTAKI ATW-YCC-03 Installation And Operation Manual page 29

ELECTRICAL AND CONTROL SETTINGS
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DSW5: Additional setting 3
In the cases where the outdoor unit is installed into a location where its own outdoor ambient temperature sensor can not give a
suitable temperature measurement to the system, it is available the 2nd outdoor ambient temperature sensor as accessory. By
means of DSW1&2 setting, the preferable sensor for each circuit can be selected.
Factory setting
Outdoor unit sensor for circuits 1 and 2.
Outdoor unit sensor for circuit 1; Auxiliary sensor for circuit 2.
Auxiliary sensor for circuit 1; Outdoor unit sensor for circuit 2.
Auxiliary sensor instead of outdoor unit sensor for both circuits.
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DSW6: Not used
Factory setting
(Do not change)
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DSW7: Additional setting 4
Factory setting
Compatibility with ATW-RTU-04 (When cooling mode operation
is needed)
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DSW8: Not used
Factory setting
(Do not change)
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DSW15 & RSW2: Refrigerant cycle number setting for YUTAKI CASCADE CONTROLLER
Set and assign to each outdoor unit a different refrigerant cycle number through DSW4 and RSW1 on the outdoor units PCB.
Set for each unit the same refrigerant cycle than its outdoor unit (DSW15 and RSW2).
Factory setting
It is recommended to set the refrigerant cycle number from 0 and correlatively (1,2,3,....) per each module in order to match whit the
address number shown in the LCD remote controller. If a different rule is used for assign the refrigerant cycle number it is necessary
to set the is set the same refrigerant cycle number in the LCD remote controller.
23 PMML0581 rev.1 - 02/2023 - 1000011627
DSW15 RSW2