Hitachi FSG1 Series Technical Catalogue page 185

Specifications on Required Components are the following:
Manufacturer or
Component
Specifications
OMRON Mini Power Relay
Auxiliary Relay (X1, X2)
Model: MY1F or Equivalent
Changeover Switch (SS2, SS3)
Optional Part PCC-1A
3P Connector Cord (Able to Connect JST
Low Voltage
Cord (Inside
of Unit)
220V/240V Class
Cord
Low Voltage
(Outside of
220V/240V Class
Unit)
?
NOTE:
Make the wires CN4 as short as possible. Do not
install the wires along the 230-400V power line.
Separately install them at a distance of more than
30cm. (Intersecting as applicable.) If the wires are
installed along the power line, put the wires in a metal
tube and connect a wire to an end for grounding. The
maximum wiring length is 70m. In the case that this
function is used, it is recommended that safety devices
such as electric leakage breaker or smoke detector,
etc. be used.
§
Remote Control 1 (Level Signal Input) (1)
This is an ON/OFF function from a remote place by using
level signal (or ON/OFF). The basic wiring and time chart
are shown bellow.
Wiring Diagram Example of Remote Control 1:
Indoor Unit PCB
3P
Connector
Time Chart:
ON
Signal to 2
OFF
& 3 of CN4
Control by R.C.S
ON
Unit
OFF
Operation
?
NOTE:
Picking up signal within 10 seconds after power supply
is turned ON is not available due to initializing of
components.
Remarks
Voltage
220V or 240V
Manual Type
Five Cords with
Connectors as
Connector XHP -3) one set
0.3mm² less than 12V
0.5~0.75mm²
0.3~0.75mm² less than 12V
2mm²
SS3: Remote Control ON/OFF
Power
Source
Control Circuit
Time
AVAILABLE OPTIONAL FUNCTIONS
§
Remote Control 2 (Pulse Signal Input) (2)
This is an ON/OFF function from a remote place by using
Pulse Signal. The basic wiring and the Time Chart are
shown below.
Turn off the power source before setting the dipswitch as
indicate bellow
DSW2
Wiring Diagram Example of Remote Control 2:
Indoor Unit PCB
3P
Connector
?
NOTE:
The pulse width shall be wider than 200ms.
Time Chart:
Signal to 2 & 3 of
CN4 (Operation)
Signal to 1 & 2 of
CN4 (Stop)
Control by R.C.S
Unit Operation
?
NOTE:
Picking up signal within 10 seconds after power supply
is turned ON is not available due to initializing of
components.
10
ON
1 2 3 4 5 6 7 8
Power
Source
Control Circuit
Time
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