Hitachi RPC-1.5FSN3 Installation And Operation Manual page 42

ELECTrICAL WIrING
3 Unit number 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 number of all indoor units
respectively and serially by following setting position. It is
recommended that the unit number setting start from "1". For
the centralized control, this setting is required.
factory setting
dsW6 (tens digit)
ON
1 2 3 4 5 6
?
n o t e
• For units supporting H-LINK II: the unit numbers can be set for
maximum 64 indoor units (Number 0-63).
• For units supporting H-LINK: the units numbers can be set for
maximum 16 indoor units (Number 0-15).
example: set at number 16 unit
dsW6 (tens digit)
ON
1 2 3 4 5 6
4 Capacity code setting (DSW3). No setting is required, due to
setting before shipment. This switch is used for setting the
capacity code which corresponds to the Horse Power of the
indoor unit.
Horsepower 1.5
ON
setting
position
1 2 3 4 5 6
Horsepower 4.0
ON
setting
position
1 2 3 4 5 6
5 Unit Model Code Setting (DSW4). No setting is required. It is
for setting the model code of the indoor unit.
factory setting
40 PMML0254A rev.4 - 12/2018
rsW1 (units digit)
0
rsW1 (units digit)
0
2.0 2.5
ON ON ON
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6
5.0 6.0
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
6 refrigerant cycle number setting (rSW2 & DSW5). Setting is
required. Setting positions before shipment are all OFF.
factory setting
dsW5 (tens digit)
ON
1 2 3 4 5 6
?
n o t e
• For units supporting H-LINK II: the refrigerant cycle numbers can be
set for maximum 64 cycles (Number 0-63).
• For units supporting H-LINK: the refrigerant cycle numbers can be set
for maximum 16 cycles (Number 0-15).
dsW5 (tens digit)
ON
1 2 3 4 5 6
7 Fuse recover (DSW7). In the case of applying high voltage
to the terminal 1 and 2 of TB2, the fuse (0.5A) on the PCB
is cut, firstly reconnect the wirings correctly to TB2, and then
turn on Number 1 pin.
factory setting
ON
1
3.0
8 Optional function setting (DSW9). No setting is required.
Setting positions before shipment are all OFF.
factory setting
?
n o t e
■
• The " " mark indicates position of dip switches. Figures show setting
before shipment.
• When the unit number and the refrigerant cycle are set, record the unit
number and refrigerant cycle to facilitate maintenance and servicing
activities thereafter.
rsW2 (units digit)
example: set at number 5 cycle
rsW2 (units digit)
High voltage
2
ON
1 2
0
0
ON
1 2