Wilo CONTROL BOX CE+ WeH Installation And Operating Instructions Manual page 17

- The sensor output is connected to the terminal
In.
Use a shielded cable, connect one side of the
shield to the earth terminals of the control box.
CAUTION! Do not apply external voltage to the
terminals!
Lack of water protection
An input ON/OFF (FIG. 4, pos. 2) protects the sys-
tem against lack of water, a float switch from the
tank shall be connected to this input.
CAUTION! Do not apply external voltage to the
terminals!
Lack of water protection
An input ON/OFF (FIG. 4, pos. 3) allows the con-
nection of a float switch from the tank in order to
manage the filling of it.
CAUTION! Do not apply external voltage to the
terminals!
Fault signal
A contact (Normally Open FIG. 4, pos. 4), free
potential, to allow a remote transfer of the alarms.
WARNING!
A 250V maximum external electrical supply may
be connected on this contact. This dangerous
voltage remains inside even if main switch is off.
Fault signal burner
A contact (Normally Open FIG. 4, pos. 5) free
potential, to allow a remote transfer of the alarm
mandatory for the functioning of the burner.
WARNING!
A 250V maximum external electrical supply may
be connected on this contact. This dangerous
voltage remains inside even if main switch is off.
Fault signal for lack of water
A contact (Normally Open FIG. 4, pos. 6) free
potential, to allow a remote transfer of the alarm
lack of water.
WARNING!
A 250V maximum external electrical supply may
be connected on this contact. This dangerous
voltage remains inside even if main switch is off.
Filling
A contact (Normally Open FIG. 4, pos. 7) supply
with 24VAc, to allow the activation of elec-
trovalves of filling.
CAUTION! Do not apply external voltage to the
terminals!
8. Commissioning
We recommend that the system is first commis-
sioned by the WILO customer service. Ask your
dealer, the nearest WILO agent or contact our
central customer service department.
WARNING!
Before switching on for the first time, check
that the customer's wiring has been done cor-
rectly, particularly the earthing.
WILO SE 09/2011
Tighten all the supply terminals before starting
the unit!
Check the position of the voltage selection
strap before switching on!
8.1 Rotation direction of the motors
Check the rotation direction of the pump complies
with the direction shown by the arrow on the
pump identification label. Use mode « hand oper-
ation » to check.
- if all the pumps run in the wrong direction, reverse
2 of the phases of the mains supply cable.
CAUTION!
Before changing over the phases, switch off
the installation main switch.
- if only one pump runs in the wrong direction in
standard operating, change over 2 of the phases
in the motor terminal box.
CAUTION!
Switch off the installation main switch before
changing over the phases.
8.2 Setting description
CAUTION!
For changing parameters, the control box must
be open and the installation main switch must
be on!
Configuration under voltage must be made
according to the local regulations by a qualified
person.
- Position all rotary switches on 0 – reset.
- Set the range of the pressure transmitter used
with the dipswitch (Fig. 3, pos. 2). The display
shows the limit value being set.
- Set the too high-pressure detection limit with
the potentiometer (Fig. 1, pos. 7 "ExcP"). The
display shows the limit value being set.
- Set the high-pressure detection limit with the
potentiometer (Fig. 1, pos. 5 "PHi"). The display
shows the limit value being set. The display
shows the limit value being set. This value shall
always be at least 0.1 bars lower than the too
high pressure detection limit
- Set the low-pressure detection limit with the
potentiometer (Fig. 1, pos. 6 "PLo"). The display
shows the limit value being set. This value shall
always be at least 0.1 bars lower than the high
pressure detection limit.
- Set the too low-pressure detection limit with the
potentiometer (Fig. 1, pos. 8 "InsP"). The display
shows the limit value being set. This value shall
always be at least 0.1 bars lower than the low
pressure detection limit.
- Select the reaction mode in case of too low
pressure alarm with the dip-switch (Fig. 3, pos. 2
"InsP "). "On" the pump will continue in case of
low pressure alarm, "off" the pump will stop in
case of low pressure alarm.
- Set the current detection limit of each motor with
dedicated potentiometers (Fig. 1, pos. 9 " I> ") in
positioning the arrows on nominal current as men-
tioned on the motor name-plate and add 10 %.
English
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