Coelbo Onematic Manual De Usuario página 4

4. TECHNICAL CHARACTERISTICS.
Power supply voltage
Frequency
Max. rated pump current
Max.operating pressure
Range of start pressure (on/off mode)
Max. stop pressure (pressure dependent mode)
Max. start pressure (pressure dependent mode)
Enclousure
Max. water temperature
Max. ambient temperature
Max. flow
DN inlet port
DN outlet port
Net weight
5. HYDRAULIC CONNECTION.
Check automatic control unit for transportation damage upon receipt.
Before hydraulically connecting the pump, it is essential to install a non-return valve at the pump´s suction side.
ONEMATIC must be connected in vertical position with the inlet port ( 1 ¼" male) directly connected to the main pump
discharge, and the outlet port (1 ¼" male) to the main network.
ONEMATIC has an integrated accumulator so that it is not necessary to install an external one. However, if frequent flow
consumptions are planned, it is recommended to operate in pressure-dependent mode, and to install an external accumulator.
6. ELECTRIC CONNECTION.
The unit should be disconnected from the electric supply before performing any work inside the unit.
Wrong connections may destroy the control electronics.
Table 1. Required cable dimensions
Power supply voltage
Motor supply
Use H07RN-F type cables of sections sufficient for the applicable power supply as given in Table 1.
Check power supply. Remove the cover of the control electronics and establish the connections according to the indications
located on the connection strip base.
Pumps with three-phase motors:
Power supply of control unit: connect L1, L2, L3 via a three pole motor protection switch (recommended) in OFF mode
and ensure proper connecting PE.
Motor: connect motor to U, V, W and PE (earth).
Pumps with single-phase motor:
Power supply of control unit: connect L1 and L2 via a motor protection switch (recommended) in OFF mode and ensure proper
earthing by connecting PE.
Motor: connect motor to U, V and PE (earth).
The earth conductor must be longer than the others. It is the first one to to be connected during installation, and the last one to be
disconnected during dismantling.
Connect all auxiliary devices:
Alert monitoring: ONEMATIC has a volt-free contact with 1 A maximum intensity for the transmission of signals to diferent types of
alarm equipment (optical, acoustic, etc) when a failure, which was previously displayed in the LCD screen, is detected. For
connection, see Fig. 4.
Min. level control: there is an input for stopping all the pumps as soon as the external switch for minimum level detection trips. For
connection see Fig. 4.
For the voltage selection set the selector:
to A for 220-240 V.
to B for 380-415 V.
When closing the cover after electrical connection, ensure
correct position of the cover seal. Make sure that internal
wires are not clamped between the cover parts.
Check rotational direction of the pump before
commissioning.
4
~1x230 / ~3x230 / ~3x400 VAC
50/60 Hz
16 (10)
A
10 bars
1 ÷ 5 bar
7 bar
6,5 bar
IP55
40ºC
50ºC
15.000 l/h
G1 ¼" male ISO 228
G1 ¼" male ISO 228
3,3 kg
~1x230 VAC
H07RN-F 3G1,5
H07RN-F 3G1,5
LATERAL CONNECTION.
1. Pump.
2. Power supply.
3. Minimum level (optional).
Fig 2. Lateral connection.
~3x230 VAC
H07RN-F 4G1,5
H07RN-F 4G1,5
1
3
2
EN
E N
~3x400 VAC
H07RN-F 4G1,5
H07RN-F 4G1,5