HydroTherm HeatNet KN -6 User Information page 57

WIRING CONNECTIONS
Figure 37 Common system damper wiring
Connection if Member
boiler is running as
Failsafe
DAMPER
Prove Switch
DAMPER
DAMPER
MEMBER BOILER 2
MEMBER BOILER 1
MASTER BOILER
NOTE:
Ensure that the Combustion Air
Damper is enabled on all Boilers for use.
SETUP MENU:AUX FUNCTIONS
24 VAC
Enable
24 VAC Ret
Connect to 24 VAC Return
on each Boiler
HeatNet Control V3 2.x
DAMPER 24 VAC
Transformer
Mains
Page 57