Commissioning
24
Commissioning Control
The
commissioning
control
enables
you
to
adjust
the
fan
flow
rates.
These
are
factory
set
to
minimum
and
can
be
adjusted
by
using
a
small
flat
screwdriver
through
the
four
holes
as
shown
below.
Estimate
the
setting
from
the
performance
graph
on
page
7,
measure
the
flow
from
the
extract
and
supply
grilles
in
the
usual
way.
Adjust
the
potentiometers
to
suit.
Figure 5: MON-HRU Controls
Summer
Mode
The
unit
is
equipped
with
a
“Summer
Mode”
for
use
when
the
indoor
temperature
is
higher
than
desired
and
the
outdoor
temperature
is
lower
than
the
indoor
temperature.
This
prevents
the
recovery
of
heat
from
the
extracted
air
stream
by
stopping
the
supply
fan,
thereby
allowing
the
cooler
outdoor
air
to
enter
the
property
via
for
example
open
windows
or
doors.
Apply
the
label
supplied
in
the
accessory
pack
after
the
flow
rates
have
been
set
to
ensure
that
the
holes
are
sealed.
The
label
is
applied
to
the
area
indicated
by
the
printed
corners.
