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14.1. Checklist Maintenance and Service
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Make sure that no connections or components are loosened unless the device is disconnected from the mains.
Make sure that the equipment cannot be switched back on again.
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Individual components must not be interchanged. For example, the components intended for one product may not
be used for other products.
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The regular maintenance and care of our devices is designed to ensure proper function, value retention and avoi-
dance of damage. Keep a maintenance log.
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Perform the specified maintenance on the unit at the specified intervals.
Description
Months
Triggering device
monthly
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Fan
Check fan for function and operational readiness (test run at least 15 minutes)
every 6 months
Check fan for function and operational readiness (test run at least 1 hour)
yearly
Check for dirt, damage, corrosion and fastening
every 6 months
Function-preserving cleaning
every 6 months
Check impeller rotation direction
yearly
Check flexible connections for leaks
yearly
Check impeller for imbalance
yearly
Check protective device for function
yearly
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Motor
Check externally for dirt, damage, corrosion and fastening
every 6 months
Function-preserving cleaning
yearly
Check bearing for noise
yearly
Check terminals for tight fit
yearly
Measure the voltage
yearly
13. COMMISSIONING
• Electricity warning (hazardous voltage)!
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Failure to observe the hazard may result in death, injury or damage to property.
→ Before performing any work on conductive parts, always disconnect the unit completely from the electri-
city supply and make sure that it cannot be switched back on again.
• Never reach into the impeller or other rotating or moving parts.
»
Failure to observe the hazard may lead to serious injury.
→ Work may only be performed once the impeller has come to a complete halt.
• Caution! Burning hazard.
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Failure to observe the hazard may result in personal injury and/or damage to property.
→ Do not touch the surface until the motor and heater have cooled.
Commissioning by trained technical personnel may only be performed after any risk has been ruled out. The following
checks should be performed in accordance with the installation and operating manual and the regulations in force:
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Correctly sealed installation of the unit and duct system.
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Check the duct system, unit and medium lines, if present, remove any foreign bodies if necessary.
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The intake opening and inflow into the unit must be clear.
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Check all mechanical and electrical protection measures (e.g. earthing).
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Voltage, frequency and type of current must correspond with the rating plate.
14. MAINTENANCE AND CLEANING
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