AERMEC MVASZC User & Installation Manual page 27

(2) Connection of the MVASZC accessory to several MVA systems (MAX. 16 systems):
WARNING:
In the case of multiple systems, the secondary serial line (from terminals G1
and G2 of the various outdoor units), must be wired between the master in the
case where one or more systems foresee more modules; to check which id
the master outdoor unit, check the status of DIP SA8
G1 G2
G1 G2
G1 G2
MVA system (1)
Address:
ON
D1 D2
1 2 3 4 5
D1 D2
Unit (1)
MVA system (2)
Address:
ON
D1 D2
1 2 3 4 5
D1 D2
Unit (1)
MVA system (n)
Address:
ON
D1 D2
1 2 3 4 5
D1 D2
Unit (1)
MVASZC
Master
ON
SA8=00
1 2
SA2 SA8
D1 D2
Unit (2)
Master
ON
SA8=00
1 2
SA2 SA8
D1 D2
Unit (2)
Master
ON
SA8=00
1 2
SA2 SA8
D1 D2
Unit (2)
Termination electric
heater
G1 G2
D1 D2
Unit (n)
D1 D2
Unit (n)
D1 D2
Unit (n)
EN
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