Electrical Connection; Compressor Running - Metasys Meta Air Einbau, Betrieb Und Wartung

12.

Electrical connection

The electrical supply line must stand the load indicated on the motor rating. Earthing must always be
used for installer safety.
Earth connection is necessary. Before connecting the compressor to the control
panel, a high sensitivity switch should be installed on the wall. Never connect the
earthing wire to the neutral pole.
Electric drawing of METASYS compressors are in Appendix B at the end of the
manual
If any electric cable or air hose
is damaged
immediately replaced. Electric
cable may not contact hot parts
of the compressor, insulation
could be damaged!

13. Compressor running

Connect the electric line by plug and the compressor to the air line connecting it to the outlet placed on the
filter (position number 19 - see exploded view).
IEC Power plug
In case of soundproofed cabinet versions compressor feeding plug is the cabinet one, whereas the general
switch is placed on the front of the cabinet. This switch feeds both the cabinet ventilation system (permanent
on some models and thermostatic controlled on other) and the pressure switch.
Turn the switch of the pressure switch (18) in position "1". Running of the compressor is fully automatic
and controlled by the pres- sure switch, which stops it when pressure in the tank (14) reaches a maximum
value, allowing compressor to start again when it descends under a fixed pressure value. Read the receiver
pressure value on pressure gauge (21). When compressor receiver is under pressure, operator may
regulate operating pressure acting on the pressure regulator situated on the filter (19 – if present): to fix
pressure required is necessary to rotate the hand-grip regulator in clockwise direction to increase pressure,
in counter clockwise direction to reduce it and read the value on its pressure gauge (20). When delivery
air pressure required is reached, push on the handgrip in order to block it.
it must be
Power plug
For THREE-PHASE motors: when installing pay attention
to the direction of rotation of the started motor, it must be
the same as indicated by the arrow on the pump unit.
24
General switch