Electrical Wiring - Hitachi PSC-A1T Installation And Operation Manual

3.

ELECTRICAL WIRING

Use this Timer with Remote Control Switch or Central Station.
CAUTION:
- Use the twist pair cable (1P-0.75mm
malfunction. In case of a cable length less than 30 m also can be used:
- Shielded pair cable (Shield connected to earth by one side)
- Normal pair cable
- Keep a distance more than 30cm between the remote control cable and the transmission
wire of indoor units.
Electrical Wiring
1. In case of using Timer with PC-ARTE
DSW1- 4 pin ON
DSW2- 2 pin ON
Transmission Wire
between Outdoor Unit and
indoor Unit (H-LINK)
PC-ARTE
PSC-A1T
Twist Pair cable 1P-0.75mm²
(Max. 100m) Field-Supplied
2. In case of using Timer with PSC-A16RS or PC-2H2
DSW1- 4 pin OFF
DSW2- 2 pin ON
a) Using Timer with PSC-A16RS
PSC-A1T
Connector
Accessory Cable (1m)
To other
Twist Pair Cable
centralized
1P-0.75mm²
ON/OFF
(Max. 1000m)
controllers
ELECTRICAL WIRING
2
) as a transmitting wire cable for prevention of the
Indoor Unit
PSC-A16RS
CN1
TB2
Power Supply:
AC220V or 240V
Available for H-LINK
connection (to be
connected to the
terminal boards 1
and 2 of Indoor unit
or Outdoor unit
/
5
3