Maintenance - ITT FLCG Serie Betriebsanleitung

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Never allow the power cable to come
into contact with the piping or the
pump and make sure it is protected
from any source of humidity.
5.4 SPEED SELECTION
All FLC-FLCG circulators are fitted with 3 or 4
speed switches which generate 3 or 4 different
H/Q performance curves. Select the speed as in-
dicated in Fig. 3.
TDisconnect the current before turn-
ing the switch (Fig. 3).
All circulators are supplied already adjusted to
4th speed (maximum performance). If neces-
sary, the user can reset the speed switch to the
most suitable speed for efficient system opera-
tion, in order to reduce noise and power con-
sumption.
ATTENTION
6. START-UP
6.1 FILLING AND VENTING
ATTENTION
short time in order to prevent damage to
the bearings as these are lubricated with
system water.
After the system has been filled and pressurised,
if required and before start-up, vent the air from
the circulator by removing the cap in the centre
of the identification plate (fig. 4).
6.2 ADJUSTMENTS
TAfter terminating electrical connections, check
the direction of rotation by removing the cap in
the centre of the motor plate (Fig. 4). After re-
moving the cap, check the direction of rotation
of the motor shaft.
If it is incorrect: a) invert any of the two phases
on three-phase circulators, b) make sure single-
14
All voltage errors may
damage the motors.
If the system is not filled
with water, only oper-
ate the circulator for a
phase circulators are wired exactly as shown in
Fig. 2.
7.

MAINTENANCE

The circulation pump does not require any spe-
cial maintenance during operation.
If the motor shaft jams as a result of prolonged
shutdown, or due to the accumulation of mag-
netite or other impurities, release it by pushing
a screwdriver through the vent hole, inserting
it into the slot at the end of the shaft and then
turning it.
The motor bearings are automatically lubricat-
ed.
If it is necessary to partially or totally drain the
system after prolonged shutdown, drain the cir-
culation pump to prevent it from jamming.
ATTENTION
the o-ring gasket of the body; replace it
with a new one if necessary.
N.B.: switch double pumps periodically.
When dismounting/
mounting the motor,
take care not to damage