Daikin VRV III REYQ8PY1 Service Manual page 195

Field Setting
3.2.2 Setting by Dip Switches
(1) Factory setting of initial PC board.
Do not make any changes in all factory settings of the DIP switches on the control PC board.
Status of DIP switches
Setting at replacement by spare PC board
Caution
DIP switch Setting after changing the main PC board(A1P) to spare parts PC board
After the replacement by the spare PC board, be sure to make settings shown below.
When you change the main PC board(A1P) to spare parts PC board, please carry out the
following setting.
DS No.
DS1-2 Power supply
DS1-3
Except
Multiple
use
DS1-4 Unit allocation
DS2-1
DS2-2 Model setting
DS2-3
DS2-4
* For detail of the setting procedure, refer to information on the following pages.
184
ON
OFF
1 2 3 4
Initial conditions of dip switches
Item
specification
OFF (Factory
setting of spare
Cooling only/Heat-
pump setting
OFF (Factory
setting of spare
setting
OFF (Factory
setting of spare
Make the settings according to models of outdoor units. (All
models are set to OFF at factory.)
* Refer to following pages for setting detail.
While the PC board assembly is replaced, the "U3" malfunction (Test run not carried out yet)
code is displayed. In this case, carry out the test run again.
If the "PJ", "UA", or "U7" malfunction code is displayed, recheck for DIP switch settings.
After the completion of rechecking for the settings, turn ON the power supply again.
ON
OFF
1 2 3 4
DS1 DS2
ON
OFF
1 2 3 4
DIP Switch Detail
ON 200V class (220V)
400V class (380V)
PC board)
ON Cooling only setting
Heat pump setting
PC board)
Make the following settings according to allocation of
unit. (All models are set to OFF at factory.)
ON
Multiple
Single use
use Single
(sab)
use (Main)
DS1-4 DS1-3
PC board)
DS2-1 DS1-4
: Represents the factory setting positions
of the switches.
ON
OFF
1 2 3 4
DS1 DS2
Contents
Domestic Overseas
Japan General
OFF OFF
OFF ON
Test Operation
Si37-701
Europe
ON
OFF