FM3170
0620
Supersedes
1019
MODEL 540
WATER-POWERED EMERGENCY BACKUP
SUMP PUMP SYSTEM
INSTALLATION INSTRUCTIONS
1. Inspect your pump. Occasionally, products are damaged during shipment. If the unit or any of the parts are damaged, contact your dealer
before using.
2. Read all the installation instructions regarding installing and start up before performing any of the work described within. Retain for future
reference.
SEE BELOW FOR LIST OF WARNINGS
1. For your protection always disconnect the power supply from its
power source before handling the components of your primary
pump.
2. Sump water is non-potable. To reduce the risk of contamination of
the potable water supply, the FLEX
®
must be installed with a listed
backow device suitable for the installation, in accordance with
the local plumbing code, such as a reduced pressure principle
backow preventer (RP). Alternately, consult the local plumbing
and health codes or the authority having jurisdiction for guidance
on cross-connection and backow protection requirements.
SEE BELOW FOR LIST OF CAUTIONS
Turbulence caused by high velocity incoming water
can negatively affect the on/off action of the oat mechanism. If
this condition exists, the incoming water must be bafed to avoid
excessive turbulence.
REFER TO WARRANTY ON PAGE 2.
1. This pump is designed for handling clear water. Do not use in septic
tanks to pump efuent or sewage pits to pump sewage.
2. Repair and service of your backup system should be performed by
an authorized service station.
3. The installation of this backup pump requires the use of a variable
level oat switch for operation. It is the responsibility of the installing
party, to ensure that the oat switch will not hang up on the pump
apparatus or pit peculiarities and is secured so the pump will turn
“on” and “off”. It is recommended that the pit be 18" in diameter
or larger to accommodate both a primary and a backup pump.
4. Check the installation of the primary and backup pump oats to
ensure that both move freely and are not being encroached upon
where the oat cannot move. Adequate space between the oats
must be maintained.
5. The pump should be manually activated once a month by lifting
the oat. Let the pump run for at least 15 seconds to prevent the
pump from building up calcium deposits and debris, which could
harm the pump.
© Copyright 2020 Zoeller
®
Co. All rights reserved.
U
P
C
®
C
Product information presented
here reects conditions at time
of publication. Consult factory
regarding discrepancies or
inconsistencies.
MAIL TO: P.O. BOX 16347 • Louisville, KY 40256-0347
SHIP TO: 3649 Cane Run Road • Louisville, KY 40211-1961
TEL: (502) 778-2731 • 1 (800) 928-PUMP • FAX: (502) 774-3624
Visit our website:
zoellerpumps.com
Register your
Zoeller Pump Company
Product on our website:
http://reg.zoellerpumps.com/
FLEX
®
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