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1. Introduction
Indoor air quality and energy efficiency
are very important considerations in
dwellings today. The Itho Advance Heat
Recovery Ventilation Unit has been
developed to meet these demands and
offers controlled and better ventilation for
a healthy and comfortable indoor climate
in full compliance with current building
regulations, while regaining the heat to an
efficiency of up to 90%.
For the home owner or occupant:
This document explains the working
principle of the ventilation system and how
to operate and maintain this unit.
Never switch off the ventilation, by
disconnecting the power cord from
the mains supply!
(Except for service and maintenance
intervals.)