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5.2 Flooded suction and suction lift startup
procedures
1. Check that the precharge pressure in the diaphragm tank is
0.7 times the required outlet pressure (setpoint).
Note: Set the precharge pressure with zero pressure on the
tank.
Measure the precharge pressure in the diaphragm
tank while the system is not pressurized.
2. Switch off the main switch on the cabinet front.
3. Switch off the circuit breakers of all pumps. The circuit
breakers are located inside the cabinet.
4. Set the "Emergency/Normal" switch for all pumps to
"Emergency". The switch is located on the front of the control
cabinet.
5. Close all pump outlet valves and prime all pumps. Prime the
pumps by opening the cap on the port of the check valve
positioned closest to the pump and filling water into the port.
Prime the pump when water no longer is able to fill into the
pump. Reinstall the cap on the check valve port and repeat
the procedure for all pumps.
6. Switch on the relevant circuit breaker of the pump to be
started.
7. Switch on the main switch; this will start the pump with the
relevant circuit breaker on.
8. Vent the pump by slowly opening the outlet valve. This will
also allow gradual filling of the outlet pipes.
9. Set the "Emergency/Normal" switch for the relevant pump to
"Normal".
10. Switch off the main switch.
11. Repeat steps 6, 7, 8, 9 and 10 for the other pumps in the
system.
12. Switch on the main switch.
13. Adjust the required setpoint via the CU 323 by pressing arrow
up or arrow down.
14. Set the system to "On" by pressing [On/Off].
15. Increase the setpoint to the desired setpoint value.
If you change the outlet pressure, change the
diaphragm tank precharge pressure accordingly.
Hydro Multi-B is now in automatic mode and ready for operation.
The initial setpoint pressure value for the system is 0
psi, and the maximum pressure is 22 psi above the
setpoint value.
This may cause a "Maximum pressure exceeded"
alarm condition after startup is complete. Increase
the setpoint pressure value to the desired pressure
and, if necessary, bleed off the pressure on the outlet
to clear the "Maximum pressure exceeded" fault.
6
5.3 Handling the product
Lift the booster systems with CM and CME pumps as shown in
fig. 4.
During handling, the lifting point must always be above the center
of gravity of the booster system.
Fig. 4
Correct lifting of Hydro Multi-B with CM and CME
pumps
CAUTION
Overhead load
Minor or moderate personal injury
- When lifting the booster system, do not use the
eyebolts of the motors.
- Do not lift the booster system by the manifolds.
- Do not stand on the manifolds.
CAUTION
Crushing of feet
Minor or moderate personal injury
- When lifting the booster system, do not use the
eyebolts of the motors.
- Do not lift the booster system by the manifolds.
- Do not stand on the manifolds.
When lifting the booster system, only use suitable lifting
equipment that is in good condition and approved for the weight.
The weight is stated on the nameplate of the booster system.
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