16.2.1 Setting of DIP switches for outdoor unit
Quantity and Position of DIP Switches
The PCB in the outdoor unit is operating with 7 types of DIP swit-
ches, and 4 push switch. The location is as follows:
DSW301: Test run mode
Setting before shipment
1 2 3 4 5 6
ON
Cooling
Heating
Forced stop of compressor
DSW1: No setting is required
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
DSW2: Optional function setting and piping lenght
Factory setting
Piping length ≤ 5m
Piping lenght ≥ 30m
Optional function setting
Optional function setting
1 2 3 4 5 6
ON
External input/output setting mode
DSW3: Capacity Setting (No setting is required)
Model RAS-2HVNP1
Setting position
Model RAS-2.5HVNP1
Setting position
Model
RAS-3HVNC1
RAS-3HVRNS3
Setting position
DSW4 / RSW1: Refrigerant cycle number setting
(Setting is required)
Setting for the ten digit
Setting position.
Set by inserting slotted screwdriver into the
groove (setting for the last digit)
DSW5: End terminal resistance (No setting is required)
Setting before shipment
DSW6: Setting of multiple indoor units simultaneous
operation (setting is required) (IVX series only)
Optional function setting
For individual operation (factory
setting position) for IVX series
For simultaneous operation
Set pin number 1 at OFF for simulta-
neous operation
DSW6: Not available for ES series
Factory setting
Empty
or
16
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