Distech Controls ECB-VAV - Page 50

48 Network Guide
Figure 29: Power wiring - AC for ECB-600 with ECx-4XXs: The 24V COM Terminal of all Devices must
be Connected to Ground
AC
Power Source
Line Neutral Ground
2-Wire Subnetwork Bus 2-Wir e Sub ne twork Bus Cab le Sh ield, typical
Fuse: 4 A Max.
Fast Acting
24 VAC
Transformer
Fuse: 4 A Max.
Fast Acting
24 VAC
Transformer
Fuse: 4 A Max.
Fast Acting
24 VAC
Transformer
MANDATORY: 24V COM Terminal M ust
be Connected to Electrical System Ground
– At the Transformer’s Secondary Only
Subnetwork Bus Cable Shield Must
be Connected to Electrical System
Ground – At the ECB -600 Only
MANDATORY: 24V COM Terminal M ust
be Connected to Electrical System Ground
– At the Transformer’s Secondary Only
MANDATORY: 24V COM Terminal M ust
be Connected to Electrical System Ground
– At the Transformer’s Secondary Only
ECB-600
24V AC /DC
24V COM
ECx -4XX
24V AC /DC
24V COM
ECx -4XX
24V AC /DC
24V COM