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VUT .. WH ЕС
The air handling unit is equipped with an electronic control block, fig. 11, 12.
Fig. 12. Electronic control unit
X1
TR1
Z1
F1
F2
TE3
F1 - thermal fuse
F2 - thermal fuse
TE3 - return heat medium sensor
TR1 - transformer 230 VAC / 24 VAC
X1 - terminal box for external connections
Z1 - digital controller
TS1 - freezing protection thermostat
TS1
The digital controller is the basic component of the control system, fig. 13.
Fig. 13 Digital controller
mini
CADET
Esc
Enter
F2
L2
Power Alarm
Fault
L1
F1
