Operation; Maintenance - Schneider Airsystems UNM STH 650-10-180 Notice D'utilisation D'origine

• Install the main switch (not included in
scope of supply)!
When using extension cords: cable cross-
section: min.
length:10 m.
2.4.5 Checking / changing the
rotation direction
Perform a rotation direction check at the "ex-
ternal" three-phase current source before
starting operation.
1. Connect the compressor to the mains
power supply.
2. Switch on the compressor at the ON/OFF
switch.
3. Note the rotation direction of the fan
wheel.
4. If the rotation direction does not corre-
spond to the direction of the arrow on the
belt guard grating, change the direction.
5. Switch off the compressor at the ON/OFF
switch.
1. Interrupt the power supply to the main
switch.
Have a trained and qualified electrician per-
form the following tasks:
1. Change over the phases.
2. Check the rotation direction. (see above)
3. If direction of rotation has not changed:
contact service partner.
2.5

Operation

Observe the safety instructions!
Do not overload the compressor: do not
exceed the max. number of switching cy-
cles and the ratio of operating time to
standstill!
Prevent the vessel from emptying completely
during longer downtimes***:
Close ball valves 4 and 3 (item 26 and 28).
2.5.1 Insert
1. Connect the compressor to the mains
power supply.
2. Switch on the compressor at the ON/OFF
switch (item 13) or the main switch.
2.6

Maintenance

Observe the safety instructions!
2.5 mm²; max.
Compressor starts up and switches off
automatically: the compressor is ready
for use.
cable When the switch-on pressure is reached, the
compressor restarts automatically.
2.5.2 Compressed air bleeding
Install the elastic connecting hose between
the compressed air outlet (item 20) and
compressed air pipe system or compressed
air cold dryer.
Standard operation using both vessels:
• All ball valves (ball valves 1 to 4, items 25
to 28) are open.
• Ball valves at condensate drainage point 1
(item 10) and condensate drainage point 2
(item 11) are open.
• Ball valve at condensate drainage point 3
(item 12) is closed (condensate drainage
only).
Operation using vessel 1 only:
• Ball valve 1 (item 25) and ball valve 4
(item 26) are open.
• Ball valve 2 (item 27) and ball valve 3
(item 28) are closed.
• Ball valve at condensate drainage point 1 is
open.
• Ball valve at condensate drainage point 2 is
closed.
• Ball valve at condensate drainage point 3 is
closed (condensate drainage only).
Operation using vessel 2 only:
• Ball valves 2 and 3 are open.
• Ball valves 1 and 4 are closed.
• Ball valve at condensate drainage point 2 is
open.
• Ball valve at condensate drainage point 3 is
closed (condensate drainage only).
2.5.3 After use
1. Switch on the compressor at the ON/OFF
switch (item 13).
2. Interrupt the power supply to the main
switch.
GB
UNM STH 180
II/11