Field Setting SiAU18-715
134 Test Operation
3. Field Setting
3.1 Field Setting from Outdoor Unit
3.1.1 Setting by Dip Switches
The following field settings are made by dip switches on PC board.
Dipswitch
Setting item Description
No. Setting
DS1-1
ON
Cool / Heat
change over
setting
Used to set cool / heat change over setting by remote
controller equipped with outdoor unit. (Note 1)
OFF (Factory set)
DS1-2
ON
Not used Do not change the factory settings.
OFF (Factory set)
Connect the cool/heat selector (optional accessory) to the terminals (A, B and C) on the outdoor PC
board (A4P).
Set the cool/heat selector switch DS1-1 from “IN (inside) ” (which is selected at the factory
before shipment) to “OUT (outside) ”.
A B C
A B C
A4P
A2P
Cool/heat
selector
DS1-1
switch knob
OUT
IN
ON/OFF
DS1 1 2
C/H
SELECTOR
Cool/heat selector connection procedure
Set the remote controller only when changing over the operation mode between cooling and heating
using the remote controller installed in the outdoor.