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4.3 Mainboard
The mainboard is "the heart" of the control.
All logic functions and control operations for
the steam humidifier take place here.
The relays for the control of the main contac-
tor, inlet solenoid valve and blow-down pump
are arranged directly on the mainboard.
F1
F2
ST06
ST05
ST04-A
ST04-B
ST07
ST08
ST03
ST1
ST1
1.1
ST09
ST10
.1
ST10
.2
ST13
ST
12.1
USB
ST15
Main relay
Plugs for
relay 1-4
connection
(order opton)
