Connection diagram: heat recovery system
AA
A1A1
CBCB
CBCB
CBCB
FF
FF
FF
ELBELB
ELBELB
ELBELB
BB
JJ
JJ
JJ
CC
CC
CC
CC
CC
DD
DD
DD
DD
DD
EE
EE
EE
EE
EE
GG
GG
GG
GG
GG
HH
II
K
A Main outdoor unit
A1 Secondary outdoor unit
B Operation wiring (shielded twisted pair cable or shielded pair cable) 5 Vdc non-polar H-LINK (field-supplied)
C Distribution box (field-supplied)
D Indoor units
E Operation wiring (shielded twisted pair cable or shielded pair cable) (field-supplied)
F Fuse (field-supplied)
G PC-ART remote control
H Indoor unit system No 0
I Indoor unit system No 1
J CH unit
K Transmission wire between A and A1
CB Circuit breaker (field-supplied)
ELB Earth Leakage Breaker (field-supplied)
4.1.4 Setting of the DSW switches on PCB1
Location of the DSW switches on PCB1.
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.
4 Electrical wiring
78
SMGB0065 rev. 1 - 12/2010