VACUUBRAND MZ 8C - Manual (Page 14)

page 14 of 52
• Direction of rotation of pumps with three phase
motor: Pumps wired ready for connection with three
phase motor are supplied with a mains plug. The elec-
trical wiring is laid out for a right-handed rotary field.
Checking the direction of rotation:
The three phase socket has to be checked, and if nec-
essary corrected, by an electrician. Otherwise the per-
formance of the pump might be reduced.
Make sure ventilation is adequate to maintain recommend-
ed operating temperature. Keep a minimum distance of
2 in (5 cm) between the cooling fan (underside the pump)
and surrounding items (e.g., housing, walls, etc.), or else
install an external automatic ventilation system.
Do not place the pump on soft surfaces (e.g., rubber foam)
during operation. This may reduce or block the fans’ air
supply. Check fan regularly for dust/dirt. Clean fan guard
grill if necessary to avoid a reduction of ventilation.
Use only hoses at the inlet and outlet of the pump with
an inner diameter at least as large as the diameter of the
pump’s tubing (to avoid overpressure at the outlet, and
reduction of pumping speed at the inlet).
Allow the equipment to equilibrate to ambient temperature
if you bring it from cold environment into a room prior to
operation. Notice if there is water condensation on cold
surfaces.
Comply with all applicable and relevant safety require-
ments (regulations and guidelines). Implement the re-
quired actions and adopt suitable safety measures.
Ambient conditions
➨
Do not reach for this product if it has fallen into liquid.
There is a risk of deadly electrical shock. Unplug the
system immediately.
NOTICE