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Installation and electrical connection
22
WILO SE 2020-12
Requirements for the exhaust system
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Run the exhaust pipe to the outside.
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Provide the exhaust pipe with a suitable silencer.
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The total counter pressure must not exceed the values prescribed by the motor
manufacturer. See motor instructions.
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Apply a guard to hot surfaces on the exhaust pipe.
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Do not install the exhaust pipe near doors or windows.
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To prevent exhaust gases from flowing back into the operating space, lay exhaust
pipe accordingly.
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Lay exhaust pipe as required by the weather conditions (entrance of rain and snow).
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Prevent condensate from flowing back into the motor.
NOTICE! Produce condensate drain from acid-resistant material!
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Keep exhaust pipe as short as possible (max. 5 m).
Avoid bends. Max. bend radius: 2.5 times the pipe diameter.
6.4.6
Diesel motor: Fuel tank
max. 3 m
Fig. 9:
Installation of the fuel tank
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Distance between fuel tank and fuel pump: max. 3 m.
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To achieve overpressure in the fuel circuit, install the fuel tank higher than the fuel
pump of the motor. Do not install the fuel tank directly above the motor.
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Place all valves between the fuel tank and motor directly next to the fuel tank.
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Only install valves with position indication and safeguards in the “open” position.
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Make sure fuel pipes are made of metal.
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Attach fuel supply pipe at least 20 mm above the bottom of the tank.
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Vent the fuel tank to the outside.
6.5
Electrical connection
DANGER
Risk of death due to electrocution!
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 in accordance
with the locally applicable regulations.
DANGER
Risk of fatal injury due to electrical current!
There is a risk of fatal injury when performing work on the open switchgear! The
components carry current! Always have work carried out by a qualified electrician.
NOTICE
Observe motor instructions!
For more information, read and comply with the separate motor instructions.
6.5.1
Requirements for the power sup-
ply
NOTICE! Carry out mains connection and main control cabinet according to
EN 12845!
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The mains connection must match the specifications on the rating plate (switchgear
and motor).
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Provide mains connection only for the system.
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Connect each system to its own mains connection.
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Make mains connection upstream of the main switch for the building.
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Always maintain mains connection.
WARNING! If other consumers are switched off, do not switch off the mains con-
nection for the system!
