Output Setting - Hitachi DXF-2.0A1 Operation Installation Maintenance Manual

6.5 Output Setting
(1) Operation Signal (Setting indication 01)
This function is utilized to pick up the operation signal. By this function, operation signal at a remote
place can be checked, or operation at the fresh air intake fan motor can be interlocked.
Connect wires as shown below. Please note that the contact of the auxiliary relay "RYa" is closed
when this operation signal is given.
(2) Alarm Signal (Setting indication 02)
This signal is utilized to pick-up activation of safety devices and is normally indicated on the wired
controller. However, this function is not available under abnormal transmission conditions.
Connect the wires as shown below. Please note that the contact of auxiliary relay "RYa" is closed
when one of the safety devices is activated.
(3) Cooling Operation Signal (Setting indication 03)
This function is utilized to pick up the cooling signal. The contact of auxiliary relay "RYa" is closed
when cooling operation signal is ON despite "Thermo-ON" or "Thermo-OFF".
Connect the wires as shown below.
(4) Thermo-ON Signal during Cooling Operation (Setting indication 04)
This function is utilized to pick up the cooling "Thermo-ON" signal of compressor running.
Connect the wires as shown below.
The contact of auxiliary relay "RYa" is closed when "THERMOSTAT" is ON during cooling operation
mode.
(5) Heating Operation Signal (Setting indication 05)
This function is utilized to pick up the heating operation signal. The contact of auxiliary relay "RYa" is
closed when heating operation signal is ON despite "Thermo-ON" or "Thermo-OFF".
Connect the wires as shown below.
(6) Thermo-ON Signal during Heating Operation (Setting indication 06)
This function is utilized to pick up the heating "Thermo-ON" signal of compressor running to control a
circulator or a humidifier. Connect wires as shown below. The contact of auxiliary relay "RYa" is closed
when "THERMOSTAT" is ON during heating operation mode.
(7) Humidifier ON Signal during Heating Operation (Setting indication 07)
This function is utilized to pick up the "Humidifier-ON" signal to control a humidifier. Connect wires as
shown below. The contact of auxiliary relay "RYa" is closed when "Humidifier" is ON during heating
operation mode.
(8) Defrost Signal (Setting indication 08)
This function is utilized to pick up Defrost Signal. Connect wires as shown below.
The contact of auxiliary relay "RYa" is closed when outdoor unit is under defrost mode.
This function is only set by
P5417151-rev.1
or .
Terminal block 2 Terminal block 2
COM
COM
COM
Picking Up Signal
Picking up signal
Auxiliary Relay
Auxiliary relay
RYa
RY
31