Jojo YBP750 User manual

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0.75kW VSD
BOOSTER PUMP
Instructions for use
• Pressure range 2 to 4.5 bar
• Flow range 5 to 66 lt/min
• Low noise level
• Uses up to 80% less energy

• The pump must be earthed.
• All the maintenance should be carried out with the power supply disconnected.
• Do not put any strain on the electrical cable.
• The pump is only designed for clean water use.
• Do not adjust any settings without having carefully read and understood the instructions.
• Extending the cable may aect your factory warranty. Make use of an approved extending plug
adapter.
• The pump should be installed in a ventilated, undercover area to protect the unit against
direct sunlight, rain and spray from an irrigation system.
• Pumping muddy water or water containing suspended solids will severely reduce the life
expectancy of the unit. Note, this type of application falls outside of the factory warranty.
• The booster pump is equipped with a draining screw at the bottom of the suction/discharge
casing. It is advised to drain the unit when temperatures fall below 0°C.
1. Ensure that the power supply cable is connected correctly.
2. The suction and discharge piping should be of rigid characteristics, be able to withstand pressure
of up to 6 bar, be air tight on the suction side and water tight on the discharge side.
3. Follow the priming instructions as per diagrams.
4. Insert a small screwdriver into the fan cover and ensure that the fan is turning freely. If not, consult
your supplier.
5. The booster pump is designed to operate with a 230V single-phase power supply. Voltage
variance is maximum 10% up or down. Further variation will damage the electrical motor.
Operating Instructions
Pump Specifications
Easy to operate
Low noise level
Automatic start/stop function
Pre-wired with a 3-point plug
Energy-ecient
Up to 80% more energy savings compared to
traditional pump systems
Restart delay
An integral time delay for restart after
3 seconds protects the motor from heat
build-up due to continuous on/o switching
Auto-rotation
A built-in timer will automatically start the
pump within a 12-hour cycle to rotate the
bearings
Constant pressure
A pressure transducer ensures that
constant pressure is maintained even
when multiple water outlets are used
simultaneously
Class leading eciency
The unit has the following integrated
functions for protection from:
• Dry run
• Over-current
• Over/under voltage
• Overload
• Phase-loss
• Abnormal Pressure
Features & Benefits
Pump Performance Curve
CAPACITY Q
YBP750
TOTAL MANOMETRIC HEAD H(m)
0
02 5 50 75 1001 25 1501 75 L/min
M3/h10.5
9.07.56.04.53.01.5
2
4
6
8
10
30
60
80
100
M
Pump Model
Motor Power
Max. Flow
Variable Speed Drive (VSD) defined: The speed at which the pump runs varies as per the pressure
requirements to ensure minimal energy is being used.
• Unit intended for clean water usage such as drinking water or non-potable water piping systems,
as well as for irrigation purposes.
• Unit suitable for use with water temperatures ranging from 2 to 80 degrees celsius.
Max. Pressure
Max. Fluid Temperature
Max. Ambient Temperature
YBP750
0.75kW
66 lt/min
4.5 Bar
80 ˚C
40 ˚C
Important Information

2. Press “SET” for skipping between functions “B01” to “B05”.
2.1 B01:
• When “B01” is displayed and “SET” is pressed, the start-up pressure can be adjusted as a
percentage of the working pressure. The default ratio is set at 70%. “+” or “-” will increase
or decrease this ratio.
For example, working pressure set at 3.0 bar and ratio set at 70%:
3.0 bar x 0.7 = 2.1 bar
Once water usage has stopped, the pump will allow system pressure to drop to 2.1 bar
before starting up.
2.2. B02:
• When “B02” is displayed and “SET” is pressed, the screen will display “00” or “01”.
Press “+” or “-” to adjust the direction of rotation. “00” means clockwise and “01” means
anti-clockwise. The factory setting is “00” for single-phase.
2.3. B03:
• When “B03” is displayed and “SET” is pressed, the screen will display a value between 0
and 1.5kgf/cm2(approximately = 1.5 bar). The default is set at 0.15kgf/cm2and is the pressure
at which the pump will switch o in the case of running dry or against low back pressure
as in the event of a burst discharge pipe. “+” or “-” will increase or decrease this value.
SETTINGS
1. Press “MODE” until reaching the desired category.
1.1 Mode “UP”:
• The screen will display the working pressure (bar).
• Pressing “+” will increase the set pressure.
• Pressing “-” will reduce the set pressure.
• The new set point will flash five (5) times before saving the value.
• The recommended operating range is between 2 bar and 4 bar.
Note, it is not recommended to change this default setting as it enables the unit to operate in
its highest eciency zone and most accurately mimics municipal pressure supply conditions.
2.4. B04 and B05:
• “B04” and “B05” has no function on this booster system.
3. Indicator lights and fault codes:
3.1. Mode “UP”:
• The “POWER” light will be illuminated.
• The “RUN” light will illuminate when the pump is operating.
• The “RUN” light will flash when the pump is operating but unable to reach the set pressure.
This is not unusual, as the application for household supply and irrigation supply vary vastly
in flow demand.
• The “LEAK” light will illuminate in cases of electrical irregularities.
• Error codes will appear on the screen and are as follows:
·E01: Low voltage from supply (below 130V).
·E02: High voltage from supply (above 280V).
·E03: Extreme voltage fluctuations are indicative of a supply connection defect.
·E04: Motor temperature exceeding operating limits. Check for insucient ventilation.
·E05: Overload condition. Check for solid objects trapped inside the pump hydraulic end
or cooling fan
·E06: Not in use.
·E07: Not in use.
·E08: Not in use.
·E09: Over-current condition indicates that something is impeding the rotating part of the
pump during normal operation.
·E10: Not in use.
·E11: Not in use.
• Pressing the “MANUAL/AUTO” button will reset all fault codes. Press again to resume
automatic operation.
• Operating under the “UP” mode will disable the “TIME” light and function.

3.2. Mode “TIME”:
• “TIME” retains all settings of “UP” mode, but allows for the selection of a restart time.
For example, “3H” will start the pump every 3 hours without the system demanding an
automatic start. This function is important for applications where the unit may not be
required to operate for extended periods of time (holiday home, weekend retreat, etc.)
• Daily starts keep the rotating equipment in good condition and prevents damage to
bearings.
• In the “TIME” mode, the “POWER” and “RUN” lights will not be illuminated.
3.3. Mode “DOWN”:
• “DOWN” mode will disable the pump system.
[phone] | www.jojo.co.za
Thank you for choosing JoJo, if there is anything that you are unsure about or need assistance with,
please do not hesitate to contact us.

[phone] | www.jojo.co.za