Xylem FLYGT 3171 - Freezing Protection and Storage

Transponation and Storage
Freezing
precautions
The unit
is frost-proof
while operating or
immersed
in liquid, but the impeller,/propeller .^
and
the shaft seal
may freeze
if
the
unit is
lifted
out
of the
liquid into a surrounding
tem
perature
below
freezing.
Follow
these
guidelines to avoid
freezing damage:
When
Guldeline
Before storag e
.
Ihe
u
nit m usl be allowed
lo run f0r a short
time aftel
raising it t0
dis(harge
remaining
pumped
liquid.
This does
not apply t0
impellerlpropeller units.
.
Ihe
discharge
opening
must
be covered
in a suitable
way, or
placed
facing
down
so that any
stili
remaining
pumPed liquid runs 0ut.
.
lf
present,
the
(00ling jacket
must be drained
manually by opening
the
air vent screws
at the top of lhe
toolinq
jacket.
After storage
ll the
impeller/propeller
is Irozen,
it must be thawed
by immersing
the unit
in liquid before operating
the
unit.
NOTICE:
Never use a
naked flame to
thaw the unit.
Long-term
storage
lf the unit
is stored
more
than six
months,
then
the following
apply;
.
Belore
operating
the unit
after
storage,
it
must be inspected
with
sPecial attention
to
the seals
and
the cable
entrY.
.
The
impeller/propelter
must
be rotated
every
other
month to
Prevent
the
seals
from
sticking
together.
10
Flygt 3171
lnstallation,
Operation,
and Maintenance
lManual