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4.
Assembly of the switch cabinet
GRAF products feature modern switch cabinets with fully automatic programmable controllers whose
programming includes a buffer power supply of several years in the event of outages. The switch cabinets
for indoor installation are suitable for wall mounting. The switch cabinets are supplied fully programmed
and ready to connect.
EPP cabinet
(380 x 580 x 300 mm)
Steel cabinet
(500 x 500 x 300 mm)
4.1
Selecting the location
Location
Cabinet
When selecting the location for the switch cabinet, the following must be taken into
account:
-
Height above the highest water level in the tank in order to avoid overflow and
water intake in the open channel in the case of damage.
-
The system generates noise! When operating, the air compressor generates
continuous noise comparable to an oil heating fan or freezer.
-
The control requires a protected electrical connection. The electrical
connection serves as a mains disconnecting device and must be easily
accessible at all times. Additional electrical fixtures on the same fuse may
disrupt operation.
-
The
location
of the switch cabinet must be a
dry
,
cool
and
well-ventilated
room. The cabinet, in particular the ventilation openings, must not be covered
and must be freely accessible for maintenance work.
-
The air hoses must be no longer than 20 metres.
4.2
EPP switch cabinet for indoor installation
Measuring 380 x 580 x 300 mm (W x H x D), the machine cabinet of EPP is secured to the wall with the
provided hanger bolts. The hanger bolts should be secured to the wall horizontally using dowels spaced
280 mm apart. The cabinet is then placed on them and secured with wing nuts.
The hose connections are on the bottom side of the cabinet. This should be taken into account when
selecting the installation site.
4.3
Metal cabinet for indoor installation
Measuring 500 x 500 x 300 mm (W x H x D), the metal cabinet is prepared for mounting on the wall. The
wall brackets provided must be attached to the rear of the cabinet first.
On the right are the mains supply with a main switch and ventilation grille.
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