AFTER INSTALLING THIS UNIT PLEASE PASS ONTO END USER
DO NOT THROW AWAY
16
SECOND FIX CONT.
4. Connecting to the unit
d) Where switch live boost is required, fix the
live from the lighting circuit to one of the
four switch live connection points. Use
spare strain relief block on live wire (See
fig.1).
e) Ensure Supply and Extract fans have
been configured as instruction 1b. The
supply fan is always located at the
bottom of the fan tower. If the extract and
supply flows appear to be reversed, the
fan connections on the PCB control may
need to be swapped over (See instruction
1b).
Important note: When the rear cover
panel is replaced, stain relief blocks should
be located within the unit to be effect. Sensor
cables should run underneath the fan tower.
5. Ductwork in loft space
• Make the ductwork runs as short as
possible. Having the most direct route and
using as few bends as possible will reduce
air resistance and improve the efficiency of
the unit.
• Any ducting that is situated in an unheated
loft space or similar site should be insulated.
Important note: Make sure that the
external supply and extract grilles are at least
1m away from any gas flue outlet (increase to
3m if mounted directly above a flue). Ensure
that the MVHR’s external supply and extract
grilles are 2m apart.
05
Installation Instructions
Fig.2
Connect LH mount duct work
Fig.3
Connect RH mount duct work
Fig.4
