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8
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If hazardous defects occur, the operator must immediately de-
activate the device. Hazardous defects include:
Malfunction of safety and monitoring devices
–
Damage to housing parts
–
Damage to electrical equipment
–
•
Open all gate valves in the piping on both the suction and dis-
charge sides.
•
Collect any leakage of fluids and operating fluids immediately
and dispose of it according to the locally applicable guidelines.
•
Tools and other objects should only be kept in their designated
places.
Thermal hazards
Most pump and drive surfaces can become very hot or very cold
during operation.
Surfaces may only be touched with extreme caution and safety
gloves must be worn.
In the case of fluids with high temperatures and high system
pressures, let the pump cool down before carrying out any work
on the pump.
Depending on the fluid temperature and system pressure, ex-
tremely hot or extremely cold fluid may escape when the venting
screw is opened completely. The fluid can escape in liquid or va-
pour form or shoot out under high pressure.
•
Always open the venting screw slowly and carefully.
Make sure that the drained water is not too hot or cold for more
intensive contact with skin.
Use suitable devices to protect components that can reach ex-
treme temperatures against contact.
Hazard due to articles of clothing or other objects being caught
To avoid the dangers presented by the rotating parts of the
product:
•
Do not wear loose or frayed clothing or jewellery.
•
Do not dismantle devices for protecting against accidental con-
tact with moving parts (e.g. coupling guard).
•
Only put the device into operation once this protection is in
place.
•
The devices for protecting against accidental contact with
moving parts may only be removed when the system is at a
standstill.
Hazards due to noise
Observe the sound pressure specifications on the motor rating
plate. The sound pressure value of the pump is generally about
the same value as that of the motor +2 dB(A).
Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10
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