Dip Switch Setting For 2, 3 And 4 Indoor Units Systems - Hitachi UTOPIA R32 Series Technical Catalogue

10 Electrical wiring
H-LINK II system

10.5.3 DIP Switch setting for 2, 3 and 4 indoor units systems

Dip switch of indoor and outdoor unit PCB - H-LINK II
The DIP switches of all the indoor and outdoor units have to be set and the impedance of the transmission circuit
adapted.
• Example of the setting of the DIP switches.
A B C
D
E
F
G
H
E
F
I
J
A: Cycle number 0.
B: Cycle number 1.
C: Cycle number 2.
D: Terminal resistance.
E: Number of refrigerant cycle (setting for the tens digit).
F: Number of refrigerant cycle (setting for the last digit).
G: Outdoor units.
H: Indoor units.
I: Address of the indoor unit (setting for the tens digit).
J: Address of the indoor unit (setting for the tens digit).
108 TCGB0136 rev.1 - 05/2021