Transport And Storage; Electrical Connection; Connection Of 1 Ph-Motors; Connection Of 3 Ph-Motors - Homa Chromatic C 225 Serie Montage- Und Bedienungsanleitung

5. Transport and Storage

Never use the cable or the discharge hose/pipe to lift,
lower, transport or attach the pump. Always use the han-
dle or a rope or a chain attached to the handle.
The pump may be transported and stored in vertical
or horizontal position. Make sure that it cannot roll or fall
over. For longer periods of storage, the pump should be
protected against moisture, frost or heat.

6. Electrical Connection

Before operation, an expert check must secure that
the required electrical protection measures exist. The
connection to ground, earthing, isolating transformer, fault
current breaker or fault voltags circuit must correspond to
the guidelines set forth by the responsible power plant.
The voltage required in the technical data sheet
must correspond to the existing line voltage.
Submersible pumps used outside of buildings must
have a cable with a minimum length of 10m.
Make sure that the electrical pin-and-socket connec-
tions are installed flood- and moisture-safe. Before start-
ing operation check the cable and the plug against dam-
ages.
The end of the pump power supply cable must not be
submerged in order to prevent water from penetrating
through the cable into the motor.
The normal separate motor starter/control box of
standard as well as of explosion proof pumps must
not be installed in explosive enviroments.

6.1. Connection of 1 Ph-Motors

Chromatic pumps with 230 V/1Ph-motors are supplied
with cable and plug ready for installation. Models C 290
WB and WBA have an additional control box with over-
load protection and switch. HOMA-Controllers, e.g. for
double pump stations are available as accessory. If any
other control unit is used, make sure that the motor
starter is set according to the nominal current consump-
tion of the pump motor (see pump label).

6.2. Connection of 3 Ph-Motors

Pumps with 3Ph-motors are supplied with cable and con-
troller with motor starter. HOMA-Controllers, e.g. for dou-
ble pump stations are avalaible as accessory. If any other
control unit is used, make sure that the motor starter is
set according to the nominal current consumption of the
pump motor (see pump label).

6.3. Check of Direction of Rotation

1 Ph-pumps do not require any check, as they always run
with the correct direction of rotation.
3 Ph-pumps must be checked for correct di-
rection of rotation before start-up.
The direction of rotation may be checked by
watching the start-jerk. Put the pump vertical
on the ground and lift one edge. Start the mo-
tor. Viewed from above, the unit must jerk
anti-clockwise, as the correct direction of rota-
tion is clockwise. With pumps already in-
stalled, the check may be done by comparing
head (pump pressure) and flow (quantity of
water) at different direction of rotation. The
direction that gives higher head and flow is
the correct one.
If the direction of rotation is wrong, inter-
change two of the phases of the electric
power supply. Using an original HOMA control box with
CEE-plug, this may be done by a 180° turning of the
small round pole-socket at the plug-end with a screw-
driver.

7. Installation

Pay attention to the maximum depth of immersion
(see pump label).
If the pump is installed in a sump, the sump opening
must be covered with a tread-safe cover after installation.
The operator has to prevent damage through the
flooding of rooms caused by defects of the pump through
the use of appropriate measures (e.g. installation of alarm
units, backup pump or like that).

7.1. Submerged Base Stand Installation

The pump may be installed with a flexible discharge hose
or a rigid pipe, non-return valve and isolating valve. If a
flexible hose is used, make sure that the hose has the
same diameter like the pump discharge and does not
buckle.
Please make sure that couplings or rigid pipe at the top of
the discharge connector does not block the integrated
non-return valve. The pump will not obtain the full capac-
ity if the non-return valve is blocked.
Fix a rope or a chain to the pump handle and lower the
pump into the liquid. If the pump is installed on muddy
ground, support it on bricks to prevent it from sinking in.

7.2. Automatic Float Switch Control

Pumps supplied with a float switch start and stop auto-
matically according to the liquid level in the pit automati-
cally.
The start level must be below the bottom of the liquid inlet
pipe of the pit to prevent backflush into the pipe. The stop
level must be above the water inlet of the pump to prevent
an air cushion in the pump.
11
Both the distance be-
tween start level (on)
and stop level (off) of
the pump and the
level of the fixing
point of the float
switch can be ad-
justed.