Wilo DrainAlarm Manual page 9

6 Installation
6.1 Personnel qualifications
6.2 Installation types
6.3 Operator responsibilities
6.4 Installation
6.4.1 Basic advice on fixing the
switchgear in place
6.4.2 Installation of switchgear
6.4.3 Fill level monitoring
Installation and operating instructions • Wilo DrainAlarm/DrainAlarm FIRST • Ed.01/2024-08
• Check the switchgear for damage caused during transport. Do not install defective
switchgears!
• Observe the local guidelines for the design and operation of electronic controls.
• Electrical work: qualified electrician
Person with appropriate technical training, knowledge and experience who can identify
and prevent electrical hazards.
• Installation/dismantling work: qualified electrician
Knowledge regarding tools and fixation material for various structures
• Wall fixation
• The installation location is clean, dry and free of vibration.
• The installation location is overflow-proof.
• The switchgear is not exposed to direct sunlight.
• Installation location outside of potentially explosive atmospheres.
DANGER
Risk of explosion if the switchgear is installed in potentially ex-
plosive areas!
The switchgear does not have its own explosion protection class!
• Always install the switchgear outside hazardous areas.
• Float switches and external alarm signals (horn, flash light) should be provided by the
customer.
• Ensure that the following ambient conditions are adhered to:
–
Ambient/operating temperature: -20 to 50 °C
–
Relative humidity: 40 to 50 %
–
Max. relative humidity: 90 %, non-condensing
Various structures can be used for installation (concrete wall, mounting rail, etc.). For this
reason, the fixation material for the relevant construction must be provided by the cus-
tomer and the following information must be observed:
• To prevent cracks in the masonry and chipping of the construction material, ensure suf-
ficient clearance to the edge of the structure.
• 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.
Attach the switchgear to the wall with four screws and wall plugs:
• Max. screw diameter: 4 mm
• Max. screw head diameter: 7 mm
✓ The switchgear is disconnected from the mains supply and is voltage-free (battery
unplugged).
✓ There is a socket available within a radius of 1 m around the switchgear.
1. Mark the boreholes at the installation site. Refer to the dimensional specifications on
the housing bottom.
2. Drill and clean the mounting holes in accordance with the specifications of the fixation
material.
3. Loosen the screws at the cover and remove the cover.
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. Put the cover back on and secure it.
▶ Switchgear installed. Next steps: Connect the power supply and signal transmitter.
Connect a float switch to monitor the fill level. The switch contact of the float switch can
act as an NO contact or an NC contact. An alarm signal works with a closed contact accord-
ing to the factory setting. An alarm signal can also work with an open contact.
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