5
g
PTC
M
3
u
I
>
I
>
I
>
U1 V1 W1
M
3
M
3
RECOMMENDATION
OFF (O)
ON (I)
≥60s
2
1
MAX 10/h
L3
L2
L1
W1
V1
U1
L3
L2
L1
d
e
f
h
4. TAWI strongly recommends that the PTC is con-
nected to a thermal relay for overheating protec-
tion (e). Wait at least 60 seconds and let the fan
stop before turning it on again (f).
6. Verify function of the vacuum pump and that it
rotates in the clockwise direction (h). If the pump
rotates in the anti-clockwise direction, switch
electrical phases and test the pump again.
5. Remove the vacuum and pressure covers (g).
