Remove And Replace The Inlet Screen; Figure 16 Connections And Controls - Edwards nEXT730D Instruction Manual

CAUTION
Ensure that any cabling and or pipe work attached to the pump are routed carefully
to avoid causing a slip/trip hazard and to prevent any damage to the cable.

Figure 16 Connections and controls

1. Inlet flange 1. Inlet flange
3. Purge port G 1/8", closed with plug 3. Purge port G 1/8", closed with plug
screw screw
6. Bearing status indication (indicates when 6. Bearing status indication (indicates when
bearing service is recommended) bearing service is recommended)
9. 48 V d.c. power supply 9. 48 V d.c. power supply
11. Vent port G 1/8", closed with plug screw 12. RS485/CAN/RS232 slide switch, USB 11. Vent port G 1/8", closed with plug screw 12. RS485/CAN/RS232 slide switch, USB

5.2.1 Remove and replace the inlet screen

The inlet screen is supplied fitted on CF pumps only. Remove the inlet screen only if
there is no possibility that debris can fall into the pump. If the inlet screen is removed,
the pumping speed will increase by up to 20%.
CAUTION
The rotor blades on the pump are very sharp. The absence or removal of inlet screens
or strainers exposes the risk of injury from sharp edges or moving parts.
Care must be taken to avoid foreign objects from entering the pump during installation.
The pump is supplied with either an integral mesh centring O-ring seal or a pre-fitted
mesh screen. This must be fitted during installation.
In the unlikely event of pump fracture, it is possible that the inlet screen may not trap all
of the debris within the pump. Ensure that the system can contain any debris that may
escape from the pump.
The screen protects the pump from contamination. Do not remove the inlet screen until
the pump is about to be mounted onto the system.
1. To remove the inlet screen from a pump with CF inlet flange, use a bent wire hook
or small screwdriver to carefully lever the inlet screen out from the inlet flange.
B8J200880_D
300812671_002_C3
B8J200880_D - Installation
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7 6 5
8
2. 4x Boreholes for transport eyes M8, 14 2. 4x Boreholes for transport eyes M8, 14
deep deep
4. Backing port 4. Backing port
5. Grounding connection 5. Grounding connection
7. Control interface 7. Control interface
8. Accessory connector 8. Accessory connector
10. LED indicators on drive unit 10. LED indicators on drive unit
connector, Standby speed change connector, Standby speed change
buttons buttons
1
2
3
4
08/2021 - ©Edwards Limited