TAWI VM50 - Page 5

5
g
PTC
M
3
u
I > I > I >
U1
V1
W1
M
3
M
3
RECOMMENDATION
OFF (O)
ON (I)
≥60s
21 MAX 10/h
L3L2L1
W1V1U1
L3L2L1
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).