Hitachi FSXNHE Serie Installations- Und Betriebshandbuch Seite 78

Electrical wiring

Connection diagram: heat pump system
A Main outdoor unit
A1 Secondary outdoor unit
Operation wiring (shielded twisted pair cable or shielded pair
B
cable) 5 V DC non-polar H-LINK (field-supplied)
C Distribution box (field-supplied)
D Indoor units
Remote control wire (shielded twisted pair cable or shielded pair
E
cable) (field-supplied)
F Fuse or CB(field-supplied)
10.5 SETTING OF THE DSW SWITCHES ON PCB1
Location of the DSW switches on PCB1.
PSW5
SEG2 SEG1
DSW1
DSW10
C A U T I O N
Before changing the settings of the DIP switches, the voltage
supply should be disconnected. Otherwise, the new settings will
not be valid.
N O T E
• Only the DIP DSW1, DSW2 and DSW4 switches can be set
while the voltage supply is connected.
• The symbol "■" indicates the position of the DIP switches. The
figures show the position of the DIP switch once the position
setting has been completed.
64
PMML0294A_rev.2_02-2014.indb 64
TB1 TB2
L1 L2 L3 N 1 2 3 4
CB
F
ELB
ELB
CB
3N
F
400V/50Hz
ELB
ELB
CB
3N
400V/50Hz
F
ELB
ELB
1N
220-240V/50Hz
230V/50Hz
PSW2 DSW2 DSW3
DSW4 DSW5
PSW1 PSW3
DSW6 DSW7
PSW4
RSW1
< PCB1 >
PMML0294A rev.2 - 07/2014
A1
TB1 TB2
L1 L2 L3 N 1 2 3 4
B
J
C C
D D
L1 L2 N L1 L2 N
TB1
TB1
TB2 TB2
1 2 A B 1 2 A B
E E
G G
H
G Remote control
H Indoor unit system number 0
I Indoor unit system nubmer 1
J Transmission wire between A and A1
K CH unit
CB Circuit breaker (field-supplied)
ELB Earth Leakage Breaker (field-supplied)
• With the DSW4 switch, the unit starts or stops after
10 to 20 sec. of the switch being enabled.
• Record the number of the outdoor unit to tell it apart from oth-
ers during service and maintenance operations in this area:
PSW2
PSW5 PSW1 PSW3
PSW4
DSW1, RSW1: refrigerant cycle number setting
Setting required
Setting before RSW1 supply: 0
Setting before DSW1 supply: 0 (digit of tens)
Set each main outdoor unit number on each
refrigerant cycle (Subs-units setting are not
required)
Outdoor and indoor units belonging to the
same refrigerant cycle: setting the same
cycle number in the outdoor and indoor units
(indoor units: DSW5 and RSW2)
I
PSW buttons on PCB1
PSW1: accept.
PSW2, 3, 4 and 5: for checking.
14/07/2014 12:28:36