MYERS ME3F, ME3H, ME3H-11, ME3H-11P, ME3F-11P Parts Manual
...
ME3F, ME3H Series
Submersible Sump /
Effluent Pump
INSTALLATION, OPERATION, & PARTS MANUAL
SAFETY INFORMATION
Carefully read and follow all safety instructions in this
manual or on pump.
This is the safety alert symbol. When you see this
symbol on your pump or in this manual, look for one of the
following signal words and be alert to the potential for
personal injury!
warns about hazards that will cause serious
personal injury, death or major property damage if ignored.
warns about hazards that can cause serious
personal injury, death or major property damage if ignored.
warns about hazards that will or can cause
minor personal injury or property damage if ignored.
The word NOTICE indicates special instructions which are
important but not related to hazards.
1. Read these rules and instructions carefully. Failure to
follow them could cause serious bodily injury and/or
property damage.
2. Check your local codes before installing. You must
comply with their rules.
3. Vent sewage or septic tank according to local codes.
4. Do not install pump in any location classified as
hazardous by National Electrical Code, ANSI/NFPA 801984 or the Canadian Electrical Code.
Hazardous voltage. Can shock,
burn, or kill. During operation the pump is in water.
To avoid fatal shocks, proceed as follows if pump needs
servicing:
Do not smoke or use devices that can generate sparks in a
septic (gaseous) environment.
5A. Disconnect power to outlet box before unplugging pump.
5B. Take extreme care when changing fuses. Do not stand
in water or put your finger in the fuse socket.
5C.Do not modify the cord and plug. When using the cord
and plug, plug into a grounded outlet only.When wiring
to a system control, connect the pump ground lead to
the system ground.
6. Be sure that construction and access to septic sumps
conform with all OSHA requirements.
7. Do not run the pump dry.Dry running can overheat the
pump, (causing burns to anyone handling it) and will
void the warranty.
8. The pump normally runs hot. To avoid burns when
servicing pump, allow it to cool for 20 minutes after
shutdown before handling it.
9. The pump is permanently lubricated. No oiling or
greasing is required in normal operation. for overhaul,
see instructions under “Service”.
When used in effluent dosing or S.T.E.P. applications, the
pump must be installed in a separate tank or compartment at
the discharge side of the septic tank.
NOTE: Never install the pump in the main tank where sludge
collects. Do not use the pump for raw sewage.
Myers has available for engineers (on request) complete
computer software for designing Pressure Sewage Systems.
This will give pipe sizes to use and gives the exact flow from
any pump or group of pumps in the system when they are
operating simultaneously. For IBM and IBM compatible
computers.
DESCRIPTION
This submersible / effluent pump is designed for effluent
dosing, Septic Tank Effluent Pumping (S.T.E.P.) and wastewater
removal, sump drainage, dewatering and flood control. Units
have built in thermal overload protection with automatic reset.
The mechanical seal and sleeve bearings on the motor shaft
are permanently lubricated. Stainless steel hardware and a
heavy duty lift out handle allow for easy disassembly after
extended use.
NOTICE: This unit is not designed for applications involving salt
water or brine! Use with salt water or brine will void warranty.
SPECIFICATIONS
Power Supply ..................See Table 1, “Motor Specifications”
Maximum Liquid Temperature ............................120° F (49°C)
Discharge Adapter..................................................1-1/2" NPT
Maximum Solids Handling.................................................3/4"
Motor Type...........................................................Shaded Pole
RPM.................................................................................1550
Motor Insulation...........................................................Class A
Overload Protection..................Internal with Automatic Reset
Bearings ............................................................Double Sleeve
Starting Switch Required .................................................None
Control Panel Required...................................................None
NOTE: This pump is not approved for, and should not be
used in, swimming pools or fountains.
© 2008 23833A305 (5/19/08)
1101 Myers Parkway, Ashland, OH 44805
Phone:
1-419-289-6898
Fax:
1-419-289-6658
Web Site:
http://www.myerspump.com
PERFORMANCE
INSTALLATION
Hazardous voltage. Can shock, burn or kill.
Do not lift pump by the power cord.See “Cord Lift Warning”
below.
NOTICE: Install the pump on a hard, level surface (cement,
asphalt, etc.). Never place the pump directly on earth, clay or
gravel surfaces. Install the pump in a sump basin with a
minimum diameter of 18" (46cm).
Piping
Piping must not be smaller than pump discharge.
The pump is designed to operate partially or completely
submerged in effluent liquids and pump semi-solid fluids up
to 3/4" (51mm) in diameter.
When installed in an effluent system, the pipe must be
capable of handling semi-solids of at least 3/4" (19mm) in
diameter.
The rate of flow in the discharge pipe must keep any solids
present in suspension in the fluid.To meet minimum flow
requirements (2 feet per second in the discharge line), size
the pipe as follows:
A Pipe Size Of: Will Handle a Flow Rate Of:
1-1/2" (38mm) 12 GPM
2" (51mm) 21 GPM
2-1/2" (64mm) 30 GPM
3" (76mm) 48 GPM
In an effluent system use a 1-1/2" (38mm) check valve in pump
discharge to prevent backflow of liquid into sump basin.The
check valve should be a free flow valve that will easily pass
solids. Be sure check valve installation complies with local
codes.
Be sure that the float switch hangs freely.It should not be able
to come in contact with the sides or bottom of the sump pit.
Make sure the sump pit is free of any debris that could obstruct
the intake volute or switch.
Use plumbing materials that are approved by local building
codes when connecting pipes between pump and sewer outlet.
NOTICE: For critical indoor installations where additional high
water protection is desired, install an audible alarm system in
the sump pit. For outdoor installations, confer with your
distributor.
Connect the power cord to a 3-prong grounded AC receptacle.
2
1. Attempting to lift or support pump by power cord
can damage cord and cord connections.
2. Cord may pull apart, exposing bare wires with
possibility of fire or electrical shock.
3. Lifting or supporting pump by power cord will
void warranty.
4. Use lifting ring or handle on top of pump for all
lifting/lowering of pump.Disconnect power to
pump before doing any work on pump or
attempting to remove pump from sump.
Risk of electrical shock.
Can burn or kill.
Do not lift pump by
power cord.
WARNING
CORD LIFT WARNING
Pump Pump Winding Locked Branch
Catalog Engineering Pump Volts/ Cord Resistance Max. Rotor Circuit
Number Number Type HP Hz/Ph Length In Ohms Amps. Amps Req’d (Amps)
ME3H-11 26228D000 Manual
ME3F-11 26229D000 Manual
ME3H-11P 26228D010 Auto
1/3 115/60/1 20’ 1.2 12.0 16.0 15
ME3F-11P 26229D010 Auto
ME3H-21 26228D001 Manual
ME3F-21 26229D001 Manual
ME3H-21P 26228D011 Auto
1/3 230/60/1 20’ 4.3 6.0 8.2 15
ME3F-21P 26229D011 Auto
TABLE 1: MOTOR SPECIFICATIONS
Liters per Minute
Gallons per Minute
Total Head in Feet
Total Head in Meters
050
0
0
5
10
20
15
25
40
35
30
0
2
4
6
8
10
12
10 20 30 40 50
60 70
100 150 200 250
ME3F
ME3H
Hazardous voltage. Can shock, burn or kill.
DO NOT remove the grounding pin from the power cord.
Avoid using extension cords or 2-prong adapter plugs.
Insert the piggyback plug that comes from the float switch
directly into the power receptacle.
Insert the pump power cord directly into the back of the
switch’s piggyback plug/receptacle.
Test the pump installation by filling the sump basin with
enough water to activate the pump and repeat this cycle until
satisfied with pump operation.
NOTICE: For best performance of check valve when
handling solids, do not install it with the discharge more than
45° above the horizontal. Do not install the check valve in a
vertical position as solids may settle in the valve and prevent
it from opening on startup.
Drill a 1/8" (3mm) hole in the discharge pipe below the check
valve to prevent airlocking the pump.
Electrical
Hazardous voltage. Can shock, burn, or kill.
When installing, operating, or servicing this pump, follow the
safety instructions listed below.
1. DO NOT splice the electr ical power cord.
2. DO NOT allow the plug on the end of the electrical cord
to be submerged.
3. DO NOT use extension cords. They are a fire hazard and
can reduce voltage sufficiently to prevent pumping and/or
damage motor.
4. DO NOT handle or ser vice the pump while it is
connected to the power supply.
5. DO NOT remove the grounding prong from the plug or
modify the plug.To protect against electrical shock, the
power cord is a three-wire conductor and includes a
3-prong grounded plug. Plug the pump into a 3-wire,
grounded, grounding-type receptacle. Connect the pump
according to the NEC or CEC and local codes.
Automatic models have a 20' mechanical (mercury free),
piggy-back float switch tethered directly to the pump.The
switch can also be mounted on the discharge pipe, with a
minimum 4" tether length. The switch must float free from the
pump and the basin wall.Tape or cable-tie the cord to the
discharge pipe every 12". Plug the switch into a properly
grounded, grounding-type receptacle of the correct voltage.
The receptacle must be installed according to all applicable
codes.
On all duplex units or simplex units with additional options
such as a high water alarm, cut off the power cord plug and
wire the pump into a control panel (or sealed junction box if it
is installed in a wet sump or basin).The AWS-1 control also
acts as a sealed junction box for connecting the power cord
to the pump cord.
Connect or wire pump to its own individual branch circuit with
no other outlets or equipment in the circuit. Size fuses or
circuit breakers according to Table 1, “Motor Specifications.”
Risk of electrical shock and fire. Can burn,
kill or cause property damage. Be sure that power supply
information (Voltage/ Hertz/Phase) on pump motor
nameplate matches incoming power supply exactly.Install
pump according to all electrical codes that apply.
OPERATION
Risk of fire or explosion. Can cause severe
personal injury, property damage or death. Do not use in
explosive atmospheres.Pump water only with this pump.
NOTICE: Do not allow the pump to run in a dry sump. It will
void the warranty and may damage the pump.
An automatic overload protector in the motor will protect the
motor from burning out due to overheating/overloading. When
the motor cools down, the overload protector will
automatically reset and start the motor.
If the overload trips frequently, check for the cause. It could
be a stuck impeller, wrong/low voltage, or an electrical failure
in the motor.If an electrical failure in the motor is suspected,
have it serviced by a competent repairman.
The pump is permanently lubricated. No oiling or greasing is
required.
Cycle the pump at least once every month to be sure that the
system is working satisfactorily.
NOTE: Any of the following will void the pump warranty:
1. Submerging, plugging, damaging or taping shut a vented
cord.
2. Pumping materials other than those the pump was
designed to pump or continuously pumping water hotter
than 120°F (49°C).
3. Cutting or splicing a power cord or switch cord.
4. Removing the cord tag from the cord.
SERVICE
General
Hazardous voltage and risk of cord
damage. Can shock, burn, or kill. Before removing the
pump from the basin for service, always disconnect electrical
power to the pump and the control switch.Do not lift the
pump by the power cord.See the “Cord Lift Warning”, Page 2.
Disinfect the Pump
Place the pump in an area where it can be cleaned
thoroughly. Remove all scale and deposits on the pump.
Submerge the complete pump in a disinfectant solution
(chlorox or chlorine bleach) for at least one hour before
disassembling the pump.
The pump motor housing contains a special lubricating oil
which should be kept clean and free of water at all times.
NOTICE: Whenever the motor housing is being removed for
service, remove oil and replace it with new oil at reassembly.
Use only oil listed in parts list in this manual. When filling
with new oil, DO NOT overfill. Be sure that the oil level is 3/4"
below the top of the cover.
Toxic gas hazard in septic tank. Never enter
the pump chamber after effluent has been in the basin.
Sewage water can give off methane, hydrogen sulfide, or
other gases which are highly poisonous.
For this reason Myers recommends installing effluent pumps
with a quick removal system – either a union with a Cam-lok®
coupling if the pipe is within reach from the top of the tank, or
a rail system type quick disconnect on deeper systems.See
Figures 4, 5, and 6, Pages 6, 7, and 8 for typical installations.
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