Wiring Connection; Dip Switches Setting - Hitachi RPC-1.5FSN3 Installation & Maintenance Manual

7.5

Wiring Connection

(1) The wiring connection for the indoor unit is
shown in the figure below.
Cap
(2) The wiring connection for electrical box is as
follows.
(a) Open the air inlet grille.
(b) Remove the electrical box cover.
(c) Connect the control cable, power source
cable and remote control switch cable.
Electrical Box
PCB1
Terminal Block
(White)
A B
Remote
Control
Switch
Cable
Transition Wiring
Between Indoor Units
(Case that multiple indoor units are
operated by one remote control switch.)
This is not required for the simultaneous
operation of UTOPIA series at a maximum
of 4 indoor units.
38
Upper Side
Wire Connection
Rear Side
Wire Connection
Cap
Terminal Block
(White)
Terminal Block
(Black)
Earth Terminal
Power Source
Line
Remote Control
Switch Cable
1 2
Control
Cable
(d) After the wiring is completed, attach the
electrical box cover again with care in
order not to bite wires.
Wire for Fan Motor
Tightly clamp wires by the cord clamp after the
wiring is completed to the terminal block. If not
completed, it may cause a fire by biting wires.
7.6

Dip Switches Setting

(1) Turn OFF all the power supply of the indoor
unit and the outdoor unit before Dip Switch
setting. If not, the setting is invalid.
(2) The positions of Dip Switches on PCB are
shown in the figure below.
Indoor Unit PCB
DSW4
DSW5
DSW9 DSW6
DSW9
(Optional Function Setting)
(3) Unit No. Setting (RSW1 & DSW6)
The indoor unit No. of all indoor units are not
required. The indoor unit numbers are set by
the auto-address function. If the indoor unit
number setting is required, set the unit No.
of all indoor units respectively and serially by
following setting position. It is recommended
that the unit number setting start from "1".
Unit No. Setting
DSW6 (Tens Digit) RSW1 (Units Digit)
Setting
Position
ON
0
OFF
1 2 3 4 5 6
Before shipment, DSW6 and RSW1 are set at "0".
(a) for Units Supporting H-LINK II
The unit Nos. can be set for Max. 64 indoor units
(No.0~63).
(b) for Units Supporting H-LINK
The unit Nos. can be set for Max. 16 indoor units
(No.0~15).
DSW4
(Unit Model Code Setting)
RSW2 & DSW5
(Refrigerant Cycle No. Setting)
SW1
DSW7
RSW2
RSW1 DSW3
DSW7
(Fuse Recover)
DSW3
(Capacity Setting)
RSW1 & DSW6
(Indoor Unit No. Setting)
Ex.) Set at No.16 Unit
DSW6
Set by inserting
slotted screwdriver
into the groove.
1 2 3 4 5 6
Set No.1 Pin at ON side
RSW1
0
Set at "6"
P5416543
ON
OFF