Dantherm HCH 5 Handbuch Seite 17

Preventive maintenance,
Cleaning Keep the unit clean to ensure perfect operation and good hygiene.
If the unit is filthy, e.g. around filter openings, clean with a firmly wrung dishcloth with
tepid water and detergent.
Terms for warranty The factory warranty is only valid when preventive maintenance can be proven. Preven-
tive maintenance must be carried out with a minimum interval of six months.
Documentation of maintenance should be a written log/journal. Regarding which ser-
vices needed, see the section "Preventive maintenance" in the installation guide.
15
continued
Important: Chemical solvents are not allowed!