Publicidad
Idiomas disponibles
Idiomas disponibles
Electrical wiring
PCB2 settings
DSW1: Optional functions
Factory setting
Pins 1 and 2: Capacity control setting
Pins 3 and 4: Duty signal setting (*1)
Pin 5: Not used
Pin 6: Thermo ON/OFF external input enabled (*2)
Pin 7: Common operation of remote control switch
Pin 8: Not used
N O T E
(*1): If external duty control is selected (pins 1-2), check the proper selection for the duty signal (pins 3-4).
(*2): The thermo ON/OFF control can be driven externally by an input signal connected to the CN3 socket of the PCB1. The pin 6 of
DSW1 in PCB2 must be switched on, then the input "i1" of CN3 is automatically set for thermo ON/OFF control. The setting of input
"i2" is kept as set on the remote controller.
Please refer to Hitachi Indoor units Service Manual for further information about the setting and connection of the auxiliary inputs.
C A U T I O N
If there is an indoor unit connected in the same RCS line as DX-Interface EXV-(2.0-10.0)E1 or KPI-(E/H/X)3E, then pin 7 must be ON
to disable the power supply to RCS line. If there is no indoor unit connected to the same RCS line but there are more than one DX-
Interface EXV-(2.0-10.0)E1 or KPI-(E/H/X)3E, then only one DX-Interface EXV-(2.0-10.0)E1 or KPI-(E/H/X)3E should have pin 7 OFF
while all other units must have pin 7 set to ON. Failure to perform this setting correctly will result in bad communication and can even
cause physical damage to the PCB.
DSW2: End resistance
No setting is required.
16
Discharge air control (Control by outlet temperature)
Indoor air control (Control by inlet temperature)
External duty control (*1)
4~20 mA
0~10 V
0~5 V
PMML0243A rev.3 - 12/2014
All units
1 2
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Publicidad
