Xylem P2000799B Series e-90 Close-Coupled In-Line Centrifugal Pumps - Manual (Page 13)

Check Explanation/comment Checked
Check that new flange gaskets are installed between
the flanges of the pump body suction and discharge
pipes. Make sure that these gaskets are clean and
grease-free.
Suitable fasteners for this connection are
supplied in the Xylem fastener pack. Apply a
torque of 8 to 11 ft. lbs (11 to 15 Nm) to each of
the flange bolts.
Typical installation
1
2
3
4
5
6
7
8
9
10
11
12
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14
1. Expansion tank
2. B&G Rolairtrol
® air separator
3. Supply to system
4. TPV tank purge system
5. B&G Triple Duty
® valve
6. B&G Series e-90 Pump
7. B&G Suction Diffuser
8. Isolation valve
9. Pipe from boiler, chiller, or converter
10. Cold water supply
11. B&G Pressure Reducing Valve
12. B&G Model 107A — high capacity vent
13. B&G #7 or #87 Air Vent
14. Drain valve
Do not install and operate B&G Series e-90 pumps in closed systems unless the system is
designed with these safety and control devices:
• Pressure relief valves
• Expansion tanks
• Pressure controlling equipment
• Temperature controlling equipment
• Flow controlling equipment
Check that the control and safety devices have these characteristics:
• Properly sized for their purpose
• Placed correctly in the system before putting the system into operation
Connect the wiring
WARNING:
• Disconnect and lock out electrical power before installing or servicing the unit.
• Motors without built-in protection must be provided with contactors and thermal
overload protection for single-phase motors, or starters with heaters for three-phase
motors. (See the nameplate on the drive unit to select properly-sized overloads.)
Electrical Hazard:
Make sure that all connections are secure and the conduit box cover is closed before you
connect the electrical power.
1. Remove the screws that secure the conduit box cover.
2. Lift off the cover.
3. Attach the appropriately sized connector to the hole in the side of the conduit box.
Installation
Series e-90 Close-Coupled In-Line Centrifugal Pumps Installation, Operation, and Maintenance Manual 11