Application/use en
Installation and operating instructions Wilo-Control MS-L 13
2.5 Installing/dismantling
ƒ Locally applicable laws and regulations on work safety and accident prevention must
be complied with.
ƒ Disconnect the product from the mains and secure it against being switched on
again.
ƒ Suitable fixation material must be used for the existing bearing surface.
ƒ The product is not watertight. Select an appropriate installation site!
ƒ Do not deform the housing during installation. Seals could leak and affect the stated
IPprotection class.
ƒ The product may not be installed in potentially explosive areas.
2.6 During operation
ƒ The product is not watertight. Comply with protection class IP54.
ƒ Ambient temperature: -30 … +60°C.
ƒ Maximum humidity: 50%, non-condensing.
ƒ Do not open the switchgear.
ƒ The user must notify the person in charge of every fault or irregularity immediately.
ƒ In case of damage to the product or connection cable, switch off the product imme-
diately.
2.7 Maintenance tasks
ƒ Do not use any aggressive cleaners or scouring agents or fluids.
ƒ The product is not watertight. Do not submerse the product in fluids.
ƒ Only carry out maintenance tasks mentioned in these installation and operating in-
structions.
ƒ Only original parts from the manufacturer may be used for maintenance and repairs.
Use of parts other than the original parts releases the manufacturer from any liabil-
ity.
2.8 Operator responsibilities
ƒ Provide installation and operating instructions in a language which the personnel can
understand.
ƒ Make sure that the personnel has had the corresponding training for the specified
work.
ƒ Safety and information signs mounted on the device must always be legible.
ƒ Train the personnel on how the system operates.
ƒ Eliminate risk from electrical current.
ƒ To ensure safe working practice, define personnel responsibilities.
Children and persons younger than 16years or with reduced physical, sensory or mental
capacities or limited experience are prohibited from handling the product! A technician
must supervise persons younger than 18years!
3 Application/use
3.1 Intended use
The switchgear is designed for level-dependent control of up to twopumps.
Intended use includes compliance with this manual. Any other use is regarded as non-
compliant with intended use.
3.2 Improper use
ƒ Installation in potentially explosive atmospheres
ƒ Overflow of the switchgear
4 Product description
4.1 Structure
Fig.1: Control MS-L 1
1 Main switch
2 LED indicators
3 Control panel with buttons
Microcontroller-controlled switchgear for control of one or two pumps. Separate main
switch for directly switching the switchgear on and off. NOTICE!The MS-L...-LS and
MS-L...-O versions do not have a main switch!