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reefe
.com.au
Ascento Group Australia
©
AI.062020
P: 1800 807 604
WARRANTY |
INSTRUCTION MANUAL
BEFORE INSTALLATION AND USE READ THE FOLLOWING INSTRUCTIONS CAREFULLY. THE MANUFACTURER DECLINES ALL RESPONSABILITY IN THE EVENT
OF ACCIDENT OR DAMAGE DUE TO NEGLIGENCE OR FAILURE TO OBSERVE THE INSTRUCTIONS DESCRIBED IN THIS MANUAL OR IN CONDITIONS THAT DIFFER
FROM THOSE INDICATED ON THE DEVICE. TECHNICAL MODIFICATIONS RESERVED
1. OPERATION
The REEFE Variable Speed Controller (VSC) is an automatic pump controller designed for the control of single-phase or three-phase pumps (depending on model).
The VSC Controller includes an electronic system managed by software which responds to the rigorous requirements of efficiency and safety of pumps. It includes a
frequency inverter that regulates the speed of the pump in order to keep the pressure constant independently of the flow provided from the pump.
The system incorporates a LCD screen where the parameters configuration is very easy to view. Once the configuration parameters are set and confirmed, the device
manages the start-up of the pump and the frequency inverter. It ensures a constant pressure and an important cost reduction because at any time the control will
feed the system with the right and necessary output, obtaining a maximum energy efficiency. In order to establish the ideal pressure in the installation is suitable to
consider following criteria:
Hm: Max. water column height in m. It depends on the number of floors and it corresponds to the height from the pump to the last floor. Every 10 m of height corre-
sponds approximately to 1 bar (0.98) bar.
Pw: Available minimum pressure in last floor (usually 1.5 bar).
Pc: Pressure drop. An average allowance is 0.033 bar/m (this can depend on the pipework installed).
Prmin: Minimum resultant pressure. It is the sum of the previous pressures and it will be the operating pressure of the pump. Example for a 5 floors building (15 m)
with pump placed at level 0:
Hm =15 m @ 1.5 bar Pw = 1,5 bar Pc=15 x 0,033 bar @ 0,5 bar Prmin = 1,5 + 1,5 + 0,5 = 3,5 bar
MASTER AND SLAVE OPERATION
The group MASTER-SLAVE is constituted by a Controller – responsible for the group´s control - and a Controller configured as SLAVE controlled by the master device
(VSC1-7.5 does not have MASTER-SLAVE compatibility).
Due to the alternating sequence of operation, the VSC Controller configured as MASTER begins the first cycle as the MAIN device - its pump is the first to start - but
in the next cycle it becomes SECONDARY - its pump is the second to start - and so on. Therefore, the fact that a device is configured as MASTER involves control of
the group but this fact does not avoid its work alternately as SECONDARY device.
2. CLASSIFICATION AND TYPE
According to EN-60730-1 this product is a device of independent assembly, type 1B with software of class A. Control circuit for alternating current motor with power
factor cosφ
≥
0,6. Pollution Degree 2. Rated impulse voltage: 2500V/CATII. Class of disconnection 1Y (electronic disconnection).
3. MAIN CHARACTERISTICS.
DN inlet port 1” or 1 ¼” BSP male ISO 228.
DN outlet port 1” or 1 ¼” BSP male ISO 228.
Frequency inverter for the pump control.
Control and safety system against over-intensities.
Control and safety system against dry operation.
REEFE Automatic Restart (RAR). If the device has been stopped due to the action of the safety system against over-intensities, the RAR tries to connect the pump,
with a programmed periodicity because the water supply could have been restored or still available.
Automatic restore system after an interruption of power supply. System is activated in AUTOMATIC mode keeping the configuration parameters (see “CONFIGURA-
TION” chapter).
Internal pressure transducer.
Control panel (see chapter 7): 2 digits display, pushbuttons, led lights and digital gauge providing instantaneous and heads up display.
Register of operational controls: information about operating hours, counter of starts, counter of connections to the power supply.
Connections for detection of minimum water level in aspiration tank. This system is independent of the safety against dry operation. Is optional.
Register of alarms: information about type and number of alarms since the starting up of the device.
4. HYDRAULIC CONNECTIONS (fig. 2 and 3)
Before proceeding with hydraulic connection it is essential to install a non-return valve in the pump´s inlet.
The VSC Controller must be connected in vertical position (diag.3), the inlet port directly to the main pump discharge and the outlet port at the main network.
It is compulsory to use an pressure tank in order to avoid continuous start-stops due to the deterioration of taps, valves, ... and also to prevent “water hammer” in
installations with valves of wide diameter.
5. ELECTRIC CONNECTION (fig. 1)
Before doing modifications inside the device, it should be disconnected from the electrical supply and after disabling, wait for 2 minutes in order to avoid electrical
discharges (all electrical connections and directions below must be carried out by a licensed electrician).
Use cables type H07RN-F with section enough to the power installed:
Power supply: 1,5 mm2(max.2,5 mm2).
Motor supply: 1 mm2 (max.2,5 mm2) depending on the cable length (see fig.1).
Verify if the power supply is 220/240 V. Dismount the back cover and carry out the connections according to the indications of fig. 1.
Do the power supply connection (make sure there is a good earth connection): L1 L2 Do the connection by mean of a suitable 3 Pin Approved Power Plug in OFF
mode.
The earth conductor must be longer than the others. It will be the first one to be mounted during the assembly and the last one to disconnect during disassembling.
Do the pump connection.
Min. level control (optional). There is an input for stopping the pump as soon as is disconnected the external switch of minimum level. Connection of 2 devices
(optional): for the communication of 2 devices it will be used a cable of 4x0.25 mm2, it will be inserted throw the PG cable gland located in the bottom/lateral of the
device. See Fig.9.
WARNING!
Wrong connections could spoil the electronic circuit. The manufacturer declines all responsibility in damages caused by incorrect connection.
6.START UP (plug & play).
Be sure that the pump is correctly primed
Connect the VSC Controller to the electric supply with the 3 Pin Power Plug, all the led lights will flash instantaneously for a second. Screen will show SP (set pres-
sure) and then its default value 2,0 bar, both displays are alternated in time periods of 1 and 5 seconds.
By pressing
the
▲▼
buttons
we can adjust the desired set pressure for the application. Be sure to not set the pressure higher than 85% of the maximum pump pres-
sure, the pump will never turn off if the pressure is set too high. Warranty is VOID if pressure is set too high.
Press the push-button AUTO, the device will start to operate and led light AUTO ON/OFF will turn on. The screen will show the current system pressure. Being in
automatic mode and using the push-buttons we can change the following displays:
P: Current system pressure (bar).
Fr: Current Speed speed (Hz).
A: Current amperage consumption (Amps).