Start Up
22
Powering Up the Unit
Switching On
Switch
on
the
power
at
the
mains
supply
isolator
feeding
the
unit
and
the
fan
motors
will
start.
N.B.
If
you
are
intending
to
carry
out
work
or
maintenance
inside
the
unit,
switch
off
the
power
at
the
mains
outlet
supplying
the
unit
before
you
remove
the
covers.
Switching Off
1.
Turn
the
power
off
at
the
mains
supply
isolator
switch.
