User Manual

9
AFTER INSTALLATION THE END USER SHOULD
KEEP THIS GUIDE FOR FUTURE REFERENCE
DO NOT
THROW AWAY
5. Fit the external supply and extract terminations.
6. Fit the supply and extract valves inside the property.
7. Fit the ductwork between the external terminations, the MVHR unit
and the supply and extract valves.
5 6
7
Ductwork should be fitted in
accordance with the Domestic
Ventilation Compliance Guide.
(Example RH unit configuration
shown).
Ducts to and from atmosphere
and through unheated spaces
need to be insulated.
For efficiency, all ductwork should
be as large a diameter as possible
(min. 125mm) and use rigid or
semi rigid duct.
Supply
Extract
Extract 1
Supply 1
Extract 2
Supply 2