Xylem IM236 User Manual
Sump Pumps
INSTRUCTION MANUAL
IM236
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
DANGER
TO AVOID SERIOUS OR FATAL
WARNING
CAUTION
WARNING
Hazardous voltage
can shock, burn or
cause death.
PERSONAL INJURY OR MAJOR
PROPERTY DAMAGE, READ AND
FOLLOW ALL SAFETY INSTRUCTIONS
IN MANUAL AND ON PUMP.
This is a SAFETY ALERT
SYMBOL. When you see this
symbol on the pump or in the
manual, look for one of the
following signal words and
be alert to the potential for
personal injury or property
damage.
Warns of hazards that WILL
cause serious personal injury,
death or major property
damage.
Warns of hazards that CAN
cause serious personal injury,
death or major property
damage.
Warns of hazards that CAN
cause personal injury or
property damage.
NOTICE: Indicates special instructions which
are very important and must be followed.
THIS MANUAL MUST BE KEPT WITH
THE PUMP.
MAINTAIN ALL SAFETY LABELS.
IMPORTANT PRE-INSTALLATION INFORMATION
All electrical work must be
performed by a qualified
technician. Always follow
the local applicable electrical
code.
The pump must be connected to a dedicated electrical circuit protected by a properly sized circuit breaker or fuses. Install
a disconnect where required by code.
Code questions should be directed to your
electrical inspector. See Chart 1 for specific
information.
Disconnect electrical power before installing or servicing the pump. The motor’s
automatic thermal overload protection
may allow an overheated pump to restart
unexpectedly.
Pump is not designed for use in swimming
pools, open bodies of water, hazardous
liquids, or where flammable gases exist.
Pumps and floats equipped with a 3-prong
grounded plug must be connected to a
3-wire receptacle. Do not attach to extensions or connectors without a 3-prong
grounded plug. NOTE: Removing the plug
from the power cord is not allowable per
NEC code. Removing the plug will void
the agency listing.
CAUTION
WARNING
This pump has been evaluated
for use with water only.
Risk of electric shock – this
pump is supplied with a grounding conductor and grounding-type attachment plug. To reduce the risk of electric
shock, be certain that it is connected only
to a properly grounded, grounding-type
receptacle.
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1. GENERAL INFORMATION
1. GENERAL INFORMATION
1.1. Sump pumps are designed to operate inter-
mittently and usually seasonally. It is recommended that you test the pump before your
rainy season begins to insure that the pump
and switch are operating properly.
1.2. We suggest installing a high water alarm
system and a battery back-up pump system
for finished basements or areas where flooding will cause property damage. A back-up
generator is another option you can discuss
with your pump installer. Most power outages occur during rain storms, just when
you need your sump pump the most! Pump
manufacturer's warranties cover only the
pump. Labor and incidental damage such as
flooding is not covered.
2. PRE-INSTALLATION CHECKS
2. PRE-INSTALLATION CHECKS
2.1. Open all cartons and inspect for shipping
damage. Report any damage to your supplier
immediately.
2.2. Verify that all equipment is the correct voltage. Warranty does not cover damage caused
by connecting pumps and controls to incorrect voltage.
2.3. Is your basin sized correctly and the proper
type for the location?
Diameter - It must be wide enough to allow
the pump and switch to physically fit and
provide room for the switch to operate
freely. The vertical switch models typically
require less diameter than the wide-angle
float models. See "min. basin diameter" in
Chart 1.
CAUTION
Depth - It must be deeper
than the minimum depth at
which the switch turns the pump On. As an
example, if the pump turns on at 15" you
want to use a basin deeper than 15”.
See "On level" in Chart 1.
WARNING
Style - There are several
sump basin styles available.
The location of the sump determines if you
require a cover and what type you require.
It is important to keep debris from entering
the sump and clogging the pump. An open
sump in a traffic area such as a basement is
dangerous. If children or pets will be playing
in the area a bolt-on or child-proof cover is
recommended.
3. PIPING
3. PIPING
3.1. Discharge pipe should be the same size
as the pump discharge to insure optimum
performance. Using undersized pipe may
dramatically reduce the flow and therefore
waste energy. Your pump supplier can suggest the correct pipe for your installation.
3.2. Install a threaded pipe adapter, matched
to the pipe type you are using, into the
threaded pump discharge. One end will have
a male thread and the other end will have
a barbed connector, compression fitting or
solvent weld connector. Use Teflon® tape on
all threaded joints. If using solvent welded
pipe and fittings it is best to dry fit them first
and after verifying the fit, solvent weld. A
union installed just above the sump or basin
cover will facilitate future maintenance and
replacement. See Chart 1 for discharge sizes.
3.3. Install a line check valve within 2 feet of
the pump. Install per valve manufacturer’s
instructions.
IMPORTANT - Drill a 1⁄8" (3.2mm) relief hole
in the discharge line approximately 2” (51
mm) above the pump discharge connection
but below the check valve and within the
sump. This “relief ” hole allows trapped air
to escape from the pump and prevents airlocking the pump. Failure to drill this hole
is a major cause of sump pumps failing to
pump after long periods of inactivity such as
seasonal use. Model ST is self-venting - no
hole is required.
4. INSTALLATION IN SUMP
4. INSTALLATION IN SUMP
4.1. The pump can be placed directly on the
bottom of a poly or fiberglass sump basin
or a concrete sump bottom. If the bottom is
packed gravel the stones must be larger than
½” (13mm) in diameter and the pump
should be placed on bricks for support.
4.2. After connecting the discharge pipe to the
pump it can be lowered into the sump (basin). Always lower the pump by the handle
and the pipe, never by the power cord. Place
the pump against the basin wall so the switch
is to the center. See "Installation Data".
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