Electrical Connection - Wilo Control EC-Booster Installation And Operating Instructions Manual

6.4.2 Installation of switchgear
6.4.3 Low water level (dry-running pro-
tection)
6.5

Electrical connection

Installation and operating instructions • Wilo-Control EC/ECe-Booster • Ed.02/2023-08
• The depth of the borehole depends on the length of the screws. Drill the borehole ap-
prox. 5 mm deeper than the screw length.
• Drilling dust impairs retention force. Always blow the borehole clean or vacuum it out.
• Do not damage the housing during installation.
Screw sizes for plastic housing
• Max. screw diameter:
–
Control EC-B 1x: 4 mm
–
Control EC-B 2x: 4 mm
–
Control EC-B 3x: 6 mm
• Max. screw head diameter:
–
Control EC-B 1x: 7 mm
–
Control EC-B 2x: 7 mm
–
Control EC-B 3x: 11 mm
Screw sizes for steel housing
• Max. screw diameter:
–
Control EC-B 1x/ECe-B 1x: 8 mm
–
Control EC-B 2x/ECe-B 2x: 8 mm
–
Control EC-B 3x/ECe-B 3x: 8 mm
• Min. screw head diameter:
–
Control EC-B 1x/ECe-B 1x: 12 mm
–
Control EC-B 2x/ECe-B 2x: 12 mm
–
Control EC-B 3x/ECe-B 3x: 12 mm
Installation
Attach the switchgear to the wall with four screws and wall plugs:
✓ Switchgear is disconnected from the mains supply and is voltage-free.
1. Loosen the screws on the cover and open the cover/switch cabinet door from the side.
2. Align the switchgear on the installation site and mark the position for the drill holes.
3. Drill and clean the mounting holes in accordance with the specifications of the fixation
material.
4. Attach the lower part to the wall with the fixation material.
Check the lower part for deformations! Realign deformed housing (e.g. by placing
alignment plates below it) to ensure the housing cover closes securely. NOTICE! If the
cover does not close correctly, the protection class is compromised!
5. Close the cover/switch cabinet door and fasten it with the screws.
▶ Switchgear installed. Now connect the mains supply, pumps and signal transmitter.
The level can be measured via the following signal transmitters:
• Float switch
The float switches must be able to move freely in the operating space (pump chamber,
tank)!
• Pressure switch
• Electrode
–
Only Control EC-B/ECe-B 1x ... and EC-B/ECe-B 2x ...
A forced switch-off of all pumps always takes place in the event of an alarm, irrespective
of the selected signal transmitter!
DANGER
Risk of fatal injury due to electrical current!
Improper conduct when carrying out electrical work can lead to death
due to electric shock!
• Electrical work must be carried out by a qualified electrician!
• Observe local regulations!
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