Kemppi FreshAir Flow Control unit - Manual (Page 15)

8. STORAGE
All parts of a FreshAir system must be stored in an environment with
temperature between 0 – 40 °C and humidity between 20 – 80 % Rh. The
storage life is 2 years for the product if stored in its original unopened
package.
NOTE! Batteries get discharged even if not in use. Therefore for long-
term storage it is highly recommended to charge the NiMH batteries
every 12 months.
9. WARRANTY
There is a 12 month warranty covering production defects and a 6 month
warranty for batteries.
The warranty begins from the date of purchase. The claim must be lodged
with the dealer. The paid invoice or receipt must be produced if claiming on
the warranty.
The claiming procedure will be successful only if there were no changes
made on the blower unit including the battery and charger.
If the damage is caused by not changing a clogged filter in time or using
a filter which has been cleaned by the customer, the claim will not be
processed.