VN250_OM-01EN.fm Page 10 Thursday, September 8, 2005 10:31 AM
Maintenance Method (continued)
3) Use a vacuum cleaner to remove dust and dirt from the element's
surface.
Caution
● Clean by lightly pressing the vacuum cleaner nozzle against the
exterior.
Avoid using a hard nozzle as it may disfigure the heat exchange foils.
● Never use water to clean the Heat Exchange Element.
■ Whenever the Heat Exchange Element is damaged, order the sales
shop or the engineering office. (Separately sold)
4) When cleaning is completed, return the Heat Exchange Element
and filter to their original positions, and close the Inspection cover
and tighten the screw.
Caution
● Make sure to install the filter with the stamp "
the Heat Exchange Element.
("
" means "Heat Exchange Element side")
Failure to do so will lead to clogging of the heat exchange foils and
reduced performance.
● Insert the heat exchange element right side up, with the label
marked
facing toward you.
10
Nozzle
" facing
Mark