47
Planning
Nortec RS
2596995_0_EN_1905
4.4.5 Accessory Board
The optional accessory board includes four relays that can be used to control other accessory devices.
Refer to
Each relay is described below:
Flush A
The normally open relay can be wired to activate or deactivate the optional valve for
flushing the water supply line for steam cylinder A.
Flush B
The normally open relay can be wired to activate or deactivate the optional valve for
flushing the water supply line for steam cylinder B.
Fan B
The normally open relay can be wired to activate or deactivate an external fan of the
air handling unit connected to steam cylinder B.
Fan A
The normally open relay can be wired to activate or deactivate an external fan of the
air handling unit connected to steam cylinder A.
Figure 28:
INTERNAL
EXTERNAL
4
3
2
1
2
1
Analog Out
Sensor Supply
Max. 60mA
Fan A
Fan B
Flush B
Flush A
1 2 3 4 5 6 7 8 9 10
F1
100mA
J3 on Control Board
Optional Accessory Board