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THERM CONNECT
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WOLF run around coil systems
9. Maintenance
09.01 Warranty
Our warranty will be void if damage is caused by improper handling, operation and maintenance. Experience has
shown that improper or inadequate maintenance causes greater damage as the products age. Consumable and
wear parts are generally excluded from the warranty.
The legislator clearly specifies annual maintenance intervals for safety equipment:
z. B.: Ordinance on workplaces - § 4, 3
Inspections of safety equipment may only be carried out by competent or skilled personnel!
VDI 6022 Hygienic requirements for ventilation and air-conditioning systems
VDI 3801 Operation of ventilation and air-conditioning systems
DIN EN 13053 Performance program for the maintenance of ventilation and other technical equipment in buildings;
ventilation and air-conditioning equipment and systems
AMEV Recommendation - Maintenance 85
DIN 1946/4 Ventilation systems in hospitals
DIN EN 13053 Central air handling units - Performance data for units, components and assemblies
We refer to the checklists contained in the aforementioned regulations, in which recommendations for maintenance
intervals are given!
For maintenance and servicing work on air handling units, VDI 6022 requires training in accordance with Category B
(hygiene training).
09.02 Electrical connections
Tighten all terminal points!
The safety functions of the control system must be subjected to an annual function test and, if necessary, the defec-
tive components must be replaced/repaired.
10. Decommissioning, dismantling and disposal
10.01 Decommissioning
• Reduce plant to minimum capacity via regulation/control system
• Close all control valves
• Switch off circulation pump
• Drain installed parts at risk of freezing. Blow through pipelines with compressed air until they are
• Switch off the main switch and lock the system
10.02 Recommissioning
• Carry out a visual inspection to determine whether there is any visible damage. Then recommission the unit
• Slowly refill drained components and carefully vent them
• Open all valves
• Operate main switch
• Switch on regulation / control
completely empty
as described under Commissioning.
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