Checking Operation Of The Set - DAB 1S4 Instructions Pour L'installation Et La Maintenance

INDEX
1. INSTALLATION .................................................................................................................................................................................................. 18
2. ELECTRICAL CONNECTION ............................................................................................................................................................................. 18

3. CHECKING OPERATION OF THE SET ............................................................................................................................................................. 18

3.1. CHECKING OPERATION OF THE ELECTROPUMP .................................................................................................................................. 18
3.2. CHECKING OPERATION OF THE COMPENSATING ELECTROPUMP (PILOT PUMP) .......................................................................... 18
3.3. SETS WITH SEVERAL PUMPS .................................................................................................................................................................. 19
4. PERIODIC MAINTENANCE ................................................................................................................................................................................ 19
4.1. WEEKLY CHECK (to be carried out at intervals of no more than 7 days) ................................................................................................... 19
4.2. QUARTERLY CHECK (at intervals of no more than 13 weeks – see EN 12845 point 20.3.2 – UNI 10779) .............................................. 19
4.3. HALF-YEARLY CHECK (at intervals of no more than 6 months – see EN 12845 point 20.3.3 – UNI 10779) ............................................. 19
4.4. YEARLY CHECK (at intervals of no more than 12 months – see EN 12845 point 20.3.4 – UNI 10779) ..................................................... 19
4.5. THREE-YEARLY CHECK ............................................................................................................................................................................ 19
4.6. TEN-YEARLY CHECK ................................................................................................................................................................................. 19
5. REGULATING THE SET ..................................................................................................................................................................................... 19
5.1. CALIBRATION OF THE PRESSURE SWITCHES ...................................................................................................................................... 19
Danfoss pressure switch type KP ................................................................................................................................................................... 20
Klockner Moeller pressure switch type MCS .................................................................................................................................................. 20
6. COMPENSATING ELECTROPUMP ................................................................................................................................................................... 20
7. MAINTENANCE .................................................................................................................................................................................................. 20
1. INSTALLATION
1.1. The set must be fitted in a well ventilated place, protected from unfavourable weather conditions, and with an environment
temperature not less than 4°C (10°C if motor pumps are installed too), and not exceeding 40°C. Position the set in such a way
that any maintenance jobs can be carried out without difficulty.
1.2.
Ensure that the system pipes are independently supported and do not weigh down on the set manifolds so as to avoid
deformation or breaking of any of its components.
1.3. It is advisable to connect the delivery pipes to the system inserting vibration-damping couplings.
1.4. Ensure that the characteristics of the water supply source are such as always to guarantee the flow rate required in the
expected operating conditions.
2. ELECTRICAL CONNECTION
ATTENTION: RESPECT THE SAFETY REGULATIONS IN FORCE
2.1.
Check the power supply voltage and frequency. Values differing from those on the motor plate could cause irremediable
damage.
2.2. Connect the leads of the power supply cable to the terminal board on the control panel, giving priority to the earth lead.
For the wiring diagram of the control panel and the pilot pump control unit, with respective informative notes, see the enclosed
documentation.
3. CHECKING OPERATION OF THE SET
3.1. CHECKING OPERATION OF THE ELECTROPUMP
a) Turn the main switch on the electropump panel to ON.
Check the direction of rotation of the electropump, starting it for a few moments with the START.
Keep the delivery line closed and check the pump performance on the pressure gauge which must correspond to the hydraulic data,
otherwise invert the electrical connections.
b) Turn the selector on the electropump panel to AUT position.
c) Open a valve in the system (or the pump manual start valve, located near the pressure switches)
d) Check that the electropump starts.
e) Close the valve in the system (or the pump manual start valve, located near the pressure switches)
f) Put the system under pressure.
g) Stop the electropump with the STOP button on the electric panel.
To check failed starting of the electric pump see the electropump instructions manual.
ATTENTION: DURING OPERATION OF THE ELECTROPUMP:
Check for any water leaks in the system and stop the electropump if necessary.
−
The contact that indicates when the electropump is running closes and may activate any connected alarms.
−
3.2. CHECKING OPERATION OF THE COMPENSATING ELECTROPUMP (PILOT PUMP)
The compensating pump (or pilot pump) is an auxiliary pump which intervenes to draw small amounts of water.
It starts at a pressure higher than the starting pressure of the main pumps and stops when the pressure in the system is restored.
It is not obligatory, but it is recommended in order to avoid needless starts of the main pumps in the case of leaks in the system.
a) Turn the main switch on the electropump panel to ON.
b) Keep the delivery line closed and check the pump performance on the pressure gauge which must correspond to the hydraulic data,
otherwise invert the electrical connections.
ENGLISH
18