54
Pictures for illustrating purposes only
When the PCB or a power cable is replaced, it is essential for correct operation to use the
method of wiring appropriate to your exact model of humidifier.
For humidifiers with multiple cylinders, wire up each corresponding Torroidal Transformer
with relevant method.
EHU-750 from 208V to 230V
752-5
752-5
752-8 752-10 753-10 753-15 753-20 753-30 754-40 755-50 755-60 755-70
Nb of phases
1
3
3
3
1
3
3
3
3
3
3
3
Method n°1
X
X
X
X
Method n°3
X
X
X
X
X
X
X
X
The power cable is run once
through the torroidal transformer,
then into the contactor.
Method n°1
Method n°2
Method n°3
Transformer of intensity (TI)
Main board ref:
500102
Power cable hole in
transformer
The power cable is once run
through and looped over the
torroidal transformer and back
through the transformer hole. Fix
the cable into the contactor.
Use the specialised split power cable.
Run one of the power cable cores
o nce
th rou gh
the
tor r oid al
transformer then into the contactor.
Run the second power cable core
directly to the contactor.
EHU-752, 753
EHU-754
EHU-755
The power cable identified with a brown sticker must be connected into the T1 terminal of the contactor.
ALL WORKS CONCERNED WITH ELECTRICAL INSTALLATION MUST BE CARRIED OUT BY A SKILLED AND QUALIFIED PERSONNEL
TORROIDAL TRANSFORMER WIRING METHOD
CONNECTING THE TI POWER CABLE INTO THE CONTACTOR
EHU-750 from 380V to 690V
752-5
752-8 752-10 752-15 753-20 753-30 754-40 754-50 754-60
755-90
Nb of phases
3
3
3
3
3
3
3
3
3
3
Method n°1
X
X
X
X
X
Method n°2
X
Method n°3
X
X
X
X
SERIES EHU-750 HUMIDIFIER
Maintenance - PCB replacement
