Pentair Myers SHA Series Manual

NOTE! To the installer: Please make sure you provide this manual to the owner of the equipment or to the responsible
party who maintains the system.
MODEL SHA
COMPLETE GRINDER
PACKAGE SYSTEM
INSTALLATION AND SERVICE MANUAL
Part # 23833A654 | © 2012 Pentair Pump Group, Inc. | 11/09/12

GENERAL INFORMATION
Thank you for purchasing your Low Pressure Sewer
Basin System.
CALIFORNIA PROPOSITION 65 WARNING:
This product and related
accessories contain chemicals known to the
State of California to cause cancer, birth
defects or other reproductive harm.
BEFORE INSTALLATION
This manual contains important information for the
safe use of this product. Read this manual completely
and follow the instructions carefully. Reasonable
care and safe methods relating to the installation and
operation of this product should be practiced. Check
local codes and requirements before installation.
nDANGER! RISK OF ELECTRICAL SHOCK OR
ELECTROCUTION. MAY RESULT IN SERIOUS
INJURY OR DEATH OR FIRE HAZARD. INSTALLER
MUST DISCONNECT ALL ELECTRICAL SOURCES
PRIOR TO INSTALLATION. ONLY QUALIFIED
PERSONNEL MAY INSTALL THIS SYSTEM. NFPA
70/NATIONAL ELECTRIC CODE (NEC) OR LOCAL
CODES MUST BE FOLLOWED. SYSTEM MUST BE
PROPERLY GROUNDED ACCORDING TO NEC.
nWARNING! BIOHAZARD RISK. ONCE THE
WASTEWATER SOURCE HAS BEEN CONNECTED
TO SYSTEM, BIOHAZARD RISK EXISTS.
INSTALLER(S) AND/OR SERVICE PERSONNEL MUST
USE PROPER PERSONAL PROTECTIVE EQUIPMENT
AND FOLLOW HANDLING PROCEDURES PER OSHA
29 CFR 1910.1030 WHEN HANDLING EQUIPMENT
AFTER WASTEWATER SOURCE HAS BEEN
CONNECTED TO THE SYSTEM.
nDANGER! RISK OF FIRE OR EXPLOSION. DO NOT
SMOKE OR USE OPEN FLAMES IN OR AROUND
THIS SYSTEM. THIS SYSTEM IS NOT INTENDED
FOR USE IN HAZARDOUS LOCATIONS PER NFPA 70
NATIONAL ELECTRIC CODE. CONSULT FACTORY
FOR OPTIONAL EQUIPMENT RATED FOR THIS USE.
nDANGER! CUTTING RISK. RISK OF SERIOUS
CUTTING OR AMPUTATION EXISTS. DISCONNECT
ALL POWER SOURCES PRIOR TO HANDLING OR
SERVICING PUMP OR GRINDING MECHANISM.
PUMP MAY START WITHOUT WARNING. GRINDING
MECHANISM IS EXTREMELY SHARP. USE CAUTION
WHEN HANDLING GRINDER MECHANISM.
nDANGER! EXCAVATION LOCATION SHALL BE
MADE ACCORDING TO LOCAL CODES AND
REGULATIONS. CHECK WITH LOCAL UTILITY
COMPANIES FOR THE LOCATION OF
UNDERGROUND UTILITIES PRIOR TO EXCAVATION.
CARE SHOULD BE TAKEN TO AVOID BURIED
UTILITY LINES, PIPING, AND OTHER BURIED
STRUCTURES AND FOUNDATIONS. FAILURE TO
FOLLOW THESE INSTRUCTIONS MAY RESULT IN
SERIOUS PERSONAL INJURY OR DEATH.
INSTALLATION SKILL REQUIREMENTS
The installation of a basin system is a specialized
skill, which requires individuals with the basic
understanding of excavating, pipe fitting, and
electrical wiring. These instructions are meant only to
be an installation guide; therefore, unusual installation
conditions not covered in these instructions require
experienced personnel capable of using reasonable
engineering principles for the installation and
operation of the system.
BASIN INSTALLATION INSTRUCTIONS
BASIN SYSTEM HANDLING
Factory built basin systems must not be dropped,
dragged, rolled, or handled with sharp objects.
Improper handling of basins may result in damage to
the basin, damage to basin components, or leaks in
the piping assemblies.
STEP 1
The pad under the basin requires 4 to 6 inches of
appropriate fill. The ideal basin pad is concrete
in conjunction with antiflotation tie-down studs.
Basin antiflotation tie-down kits are available from
Myers. If concrete pad is not used, the aggregate
must be compacted to a minimum 85% standard
proctor density per ASTM D698, or as required by
the authority having jurisdiction. Concrete pad or
aggregate surface must be leveled flat and free of
voids to conform to the basin bottom. Basin bedding
depth should be calculated such that the basin top
will protrude 3" above the normal grade upon final
installation.
STEP 2
Lifting of the basin may be done with a nylon or other
nondamaging type material sling. Do not wrap a chain
or steel cable around the basin as damage may result.
Do not attach lifting mechanism around the discharge
hub or electrical hub.
nDANGER! FAILURE TO PROPERLY SUPPORT
ELECTRICAL CONDUIT, LINES AND CONNECTIONS
MAY RESULT IN STRUCTURAL FAILURE.
ELECTRICAL CONNECTIONS MAY BE DAMAGED
EXPOSING LIVE ELECTRICAL CONNECTIONS.
nCAUTION! IF THE BASIN IS NOT TIED DOWN
DURING INSTALLATION, RAIN OR FLOOD
CONDITIONS MAY CAUSE THE BASIN TO FLOAT
UPWARD, CAUSING DAMAGE TO THE BASIN OR
BASIN CONNECTIONS. CLAIMS FOR THIS TYPE OF
DAMAGE CANNOT BE PROCESSED BY MYERS.
23833A654 11/09/12 2

STEP 3
Lower the basin into excavation, position and level
properly. Mount basin to base anchor bolts if an
antiflotation tie-down kit is used. If basin is fiberglass,
inspect basin and seal off any cuts or scratches to
prevent fiberglass deterioration.
INFLUENT AND DISCHARGE
CONNECTIONS FOR
FIBERGLASS BASINS
STEP 1
An inlet grommet is the standard supplied influent
connection device. Determine point at which influent
line will enter basin and using a properly maintained
piloted hole saw sized per chart below, drill a hole
through the basin wall. If using a fiberglass basin,
clean cut hole and apply a sealant coating to the cut
section to prevent fiberglass deterioration. Insert the
inlet grommet into the drilled hole.
Pipe Size Hole Saw Diameter
3" 4"
4" 5"
6"* 7"
*6" pipe size requires use of a fiberglass basin.
nDANGER! FAILURE TO USE A PROPERLY
PILOTED HOLE SAW MAY RESULT IN DAMAGE
TO BASIN WHICH MAY RESULT IN STRUCTURAL
FAILURE OR SERIOUS LEAKS.
STEP 2
Lubricate inside lip of inlet grommet with pipe soap.
Clean outer end of influent pipe and push pipe
through grommet. Ensure pipe does not protrude
inside basin so as to interfere with pump removal or
float operation.
STEP 3
Close shutoff valve and make discharge line
connection. It is strongly recommended that an
additional shutoff valve and redundant check valve be
located outside the basin at any force main entrances
– check local codes for specific requirements.
BACKFILL INSTRUCTIONS
The authority having jurisdiction has the right to
require alternative materials or procedures for
backfilling the installation.
nWARNING! FAILURE TO PROPERLY BACKFILL
MAY RESULT IN DAMAGE TO THE BASIN WHICH
COULD CAUSE LEAKS OR STRUCTURAL
FAILURE. FAILURE TO FOLLOW THESE BACKFILL
INSTRUCTIONS DURING THE INSTALLATION OF
THE BASIN VOIDS THE BASIN WARRANTY.
nCAUTION! IN FREEZING CONDITIONS THE
BACKFILL MUST BE DRY AND FREE OF ICE. DO
NOT USE OTHER BACKFILL MATERIALS. FAILURE
TO USE THE RECOMMENDED BED AND BACKFILL
MATERIALS DURING THE INSTALLATION OF THE
BASIN VOIDS THE BASIN WARRANTY.
STEP 1
Obtain proper backfill material. The backfill material
provides as much as 90% of the basin’s support
under certain stress conditions. The installer must be
positive that correct bed and backfill materials are
used per instructions as follows:
A. Gravel – clean and free flowing with particle
size not less than 1/8" nor more than 3/4"
in diameter. Use this description when
ordering or specifying as material varies
upon geographical location. This material is
commonly known as “pea gravel”.
B. Stone or gravel crushings with angular particle
size of not less than 1/8" nor more than
1/2" diameter, washed and freeflowing, is
acceptable as an alternative material.
STEP 2
At least a 4 inch wide band of compacted aggregate
must be placed in successive layers (6" lifts) around
the entire periphery of the basin. Carefully compact
aggregate under all piping and electrical lines.
Cover grade should slope down 3" to the normal
surrounding grade. Care must be taken to prevent
damage to any influent, discharge, or electrical
connections made to the basin.
FINAL BACKFILL FOR BASIN SYSTEMS
23833A654 11/09/12
3

INTERNAL BASIN INSTALLATION
INSTRUCTIONS
Remove pump from carton. When unpacking unit,
check for concealed damage. Claims for damage
must be made at the receiving end through the
delivery carrier. Damage cannot be processed from
the factory.
SYSTEMS DESCRIPTION
Factory built basin systems are available in 24"
diameter basins with 48" through 96" depths in one
foot increments. In the system, the pump and piping
assembly are raised and lowered in the basin using
rope attached to pump with integral union to facilitate
piping disconnect.
PUMP MODELS
The basin system may employ any 1 through 2 HP
submersible grinder pump that uses cutter blades to
grind solids into a slurry. These pump systems are
designed for pumping effluent or sewage water only.
GRINDER PUMP ATTACHMENTS
STEP 1
Attach the stainless steel foot bracket to bottom of
the pump with bolts and washers provided.
STEP 2
Apply pipe by applying thread sealant to pipe threads
and screw the discharge piping assembly into the
pump discharge.
STEP 3
Attach lifting chain, cable or rope as supplied to the
lifting eye bolts.
INTERNAL BASIN CONNECTIONS
STEP 1
If the system is supplied with a float bracket, attach
float switches to the float bracket by clamping strain
relief bushings around the float cords, then inserting
and twisting the bushings into the float bracket slots.
STEP 2
After grinder pump attachments have been made,
lower the pump and piping assembly down, ensuring
the discharge valve union aligns properly. Tighten the
discharge valve union properly with discharge.
SYSTEMS WITH JUNCTION BOX
STEP 1
Ensure power source is off or disconnected and push
pump power, seal failure/heat sensor, and float cords
through cord grips in the junction box and tighten. To
prevent corrosion or electrical short, plug any unused
holes.
STEP 2
Remove junction box cover and make all connections
inside junction box to all incoming control panel
wires. It is recommended that the customer furnish
and install a conduit seal outside the basin to prevent
surface water from entering the junction box.
SYSTEMS WITHOUT JUNCTION BOX
STEP 1
An inlet grommet for 2" PVC conduit is the standard
supplied electrical conduit connection device.
Determine the point at which the electrical conduit
will enter the basin and, using a 3" diameter, properly
maintained, piloted hole saw, drill a hole through the
basin wall. If using a fiberglass basin, clean the edges
of the hole and apply a sealant coating to the cut
section to prevent fiberglass deterioration. Insert the
inlet grommet into the drilled hole.
STEP 2
Lubricate the inside lip of the inlet grommet with pipe
soap. Clean the outer end of the conduit and push the
conduit through the grommet. Ensure that the conduit
does not protrude inside the basin so as to interfere
with pump removal or float operation.
STEP 3
Guide the pump and float switch cords through the
conduit to the control panel. The pump cord length,
control panel location and conduit length must allow
the cords to run continuously to the control panel
without splices.
STEP 4
Make the electrical connections at the control panel.
Seal the opening of the conduit at the entrance into
the control panel with electrical putty or a similar
sealant to prevent sewer gases from entering the
control panel.
nCAUTION! FAILURE TO PROPERLY SEAL THE
ELECTRICAL CONDUIT FROM THE BASIN AT
THE ENTRANCE TO THE CONTROL PANEL MAY
ALLOW SEWER GASES TO CONDENSE INSIDE THE
CONTROL PANEL AND CAUSE PREMATURE PANEL
FAILURE. THIS WILL VOID ANY WARRANTY.
23833A654 11/09/12 4

PANEL WIRING
NOTE: Failure to use a Myers approved control panel
voids the pump/system warranty.
IMPORTANT: Properly connect the panel ground
wire to a grounding rod. Improper grounding voids
warranty.
STEP 1
Ensure power source is off or disconnected.
STEP 2
Connect pump power and float cords to panel
terminals per the schematic. All conduits and cables
entering the panel must be sealed off. Check panel
wiring to ensure white, black, and red pump leads are
connected according to the schematic and panel wire
labels. Single phase pumps will run only if connected
one way.
PREOPERATIONAL
GRINDER PUMP CHECKS
STEP 1
Ensure power source is off or disconnected and
remove pump from basin. With power off, turn radial
cutter with a screwdriver to be sure it rotates freely.
PUMP OPERATIONS
STEP 1
Run clear water into the basin until motor housing is
covered.
STEP 2
Open the shut-off valve to the discharge line.
STEP 3
Turn on the main breaker.
STEP 4
Start the pump by pushing the “Push-to-run” push
button inside the control panel.
STEP 5
Check the pump amperage with clamp on ammeter
on black pump lead. Readings higher than nameplate
indicate clogged pump, miswiring, or improper
voltage. If basin is not being pumped down and
amperage readings are considerably lower than
nameplate, then the pump may be air locked.
STEP 6
Adjust floats so that the water level is above the
pump motor housing, and the pump shuts off when
the water level is 2 inches above the pump volute
discharge.
23833A654 11/09/12
5

23833A654 11/09/12 6
Pump runs but does not pump
down the basin with the H-O-A
switch on either Hand or
Automatic position.
Basin level is pumped down when
the “Push-to-run” push button is
pushed, but is not pumped down
in Automatic position.
Pump run light stays on.
Circuit breaker trips when pump
tries to start.
1. Cutters may be clogged. Amperage higher than nameplate may indicate
this problem.
2. Discharge gate valve may be closed.
3. Clogging anywhere from cutters to check valve. This is evident if no water
discharged out of the check valve after raising the pump to disconnect the
sealing flange. Pull pump assembly and check for cause of clogging.
4. Discharge head may be too high. Check elevation against design point of
pump.
5. Clogging beyond the sealing flange. This is evident if water is discharged
through the check valve when raising the pump to disconnect the sealing
flange. Inspect system basin piping or discharge piping from basin to locate
clogging.
1. Floats are not hanging free in the basin or are covered with grease. Pump
the level down with the “Push-to-run” push button, so that the floats can be
observed. Relocate and clean float(s) as necessary.
2. If this is a new installation and original start-up, the floats may be miswired
into the control panel. If the On and Off floats are reversed, the pump will
short cycle on and off and will not pump the level down.
3. Floats are malfunctioning. Pull the floats out of the basin and hang the Off
and On floats from your hand. Tilt the Off float so that the large end is
above the cord end – nothing should happen. While keeping the Off float
tilted, tilt the On float in the same manner – the pump should come on.
Suspend the On float again from your hand – the pump should continue to
run. Finally, suspend the Off float – the pump should stop running. If this
procedure does not cause the pump to operate as described, either replace
the float(s) or replace the alternator relay if the system is duplex.
NOTE: Use twisted shielded cable for seal failure cable runs in excess of
100 feet.
1. Lower float may have failed causing the pump to continue operating below
the Off level.
2. Pump may be air locked.
3. Cutters may be clogged.
1. Short circuit in pump motor.
2. Water may have entered the motor housing through either worn out
mechanical seals or O-rings.
3. Start component(s) failure. Check start capacitor and start relay for failure.
4. Pump may be miswired to panel. The white, black, and red pump power
leads must be connected correctly to panel.
TROUBLE CHECKLIST
Troubles listed generally pertain to the pump and auxiliary components. Other trouble can occur from a faulty
control box. These will be listed with the control box instructions.
CONDITION PROBABLE CAUSE

8
7
12
11
1
2
4
5
9
6
10
10
3
Ref.
No..Description No. Req..Part Number
1 Pump, MGPD200-21, Sewage Grinder,
230V/60 Hz/1ø, Positive Displacement 1 27315D011
Pump, MG200-21, Sewage Grinder,
230V/60 Hz/1ø, Centrifugal 1 26465D000
2 Stand for MGPD200 Positive
Displacement Pump 1 14887-003-1
Stand for MG200 Centrifugal Pump 1 27078B005
3 Junction Box, NEMA-6, 2" NPT 1 12870-015-1
4 Float Control, Pump, 20' Cord 1 14595-320-1
5 Float Control, Alarm, 20' Cord 1 21813A322
6 Float Control Bracket 1 22470B005
7 Basin, 24" x 48", Fiberglass 1 23901D303
Basin, 24" x 60", Fiberglass 1 23901D301
Basin, 24" x 72", Fiberglass 1 23901D304
Basin, 24" x 84", Fiberglass 1 23901D306
Basin, 24" x 96", Fiberglass 1 23901D308
8 Basin Cover, Structural Foam 1 21936D200
9 Adapter, for 4" SCH40 PVC Pipe 1 24335A001
10 Adapter, for 2" SCH40 PVC Pipe
or Conduit 2 24335A000
11 Flexible Discharge Pipe 1 13653-004-1
12 Discharge Valve, Single Union 1 11841-010-1
Not
Shown
Control Panel, Positive
Displacement Pump 1 27682A001
Control Panel, Centrifugal Pump 1 27682A000
FIBERGLASS SIMPLEX PARTS LIST
23833A654 11/09/12
7

1101 MYERS PARKWAY 490 PINEBUSH ROAD, UNIT #4
ASHLAND, OHIO, USA 44805 CAMBRIDGE, ONTARIO, CANADA N1T 0A5
419-289-1144 800-363-PUMP
WWW.FEMYERS.COM
Warranty Rev. 12/13
STANDARD LIMITED WARRANTY
Pentair Myers®warrants its products against defects in material and workmanship for a period of 12 months from the
date of shipment from Pentair Myers or 18 months from the manufacturing date, whichever occurs first – provided
that such products are used in compliance with the requirements of the Pentair Myers catalog and technical manuals
for use in pumping raw sewage, municipal wastewater or similar, abrasive-free, noncorrosive liquids.
During the warranty period and subject to the conditions set forth, Pentair Myers, at its discretion, will repair or
replace to the original user, the parts that prove defective in materials and workmanship. Pentair Myers reserves the
right to change or improve its products or any portions thereof without being obligated to provide such a change or
improvement for prior sold and/or shipped units.
Start-up reports and electrical schematics may be required to support warranty claims. Submit at the time of start-
up through the Pentair Myers website: http://forms.pentairliterature.com/startupform/startupform.asp?type=m.
Warranty is effective only if Pentair Myers authorized control panels are used. All seal fail and heat sensing devices
must be hooked up, functional and monitored or this warranty will be void. Pentair Myers will cover only the lower
seal and labor thereof for all dual seal pumps. Under no circumstance will Pentair Myers be responsible for the cost
of field labor, travel expenses, rented equipment, removal/reinstallation costs or freight expenses to and from the
factory or an authorized Pentair Myers service facility.
This limited warranty will not apply: (a) to defects or malfunctions resulting from failure to properly install, operate or
maintain the unit in accordance with the printed instructions provided; (b) to failures resulting from abuse, accident
or negligence; (c) to normal maintenance services and parts used in connection with such service; (d) to units that
are not installed in accordance with applicable local codes, ordinances and good trade practices; (e) if the unit is
moved from its original installation location; (f) if unit is used for purposes other than for what it is designed and
manufactured; (g) to any unit that has been repaired or altered by anyone other than Pentair Myers or an authorized
Pentair Myers service provider; (h) to any unit that has been repaired using non factory specified/OEM parts.
Warranty Exclusions: PENTAIR MYERS MAKES NO EXPRESS OR IMPLIED WARRANTIES THAT EXTEND BEYOND
THE DESCRIPTION ON THE FACE HEREOF. PENTAIR MYERS SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR PURPOSE.
Liability Limitation: IN NO EVENT SHALL PENTAIR MYERS BE LIABLE OR RESPONSIBLE FOR CONSEQUENTIAL,
INCIDENTAL OR SPECIAL DAMAGES RESULTING FROM OR RELATED IN ANY MANNER TO ANY PENTAIR MYERS
PRODUCT OR PARTS THEREOF. PERSONAL INJURY AND/OR PROPERTY DAMAGE MAY RESULT FROM IMPROPER
INSTALLATION. PENTAIR MYERS DISCLAIMS ALL LIABILITY, INCLUDING LIABILITY UNDER THIS WARRANTY, FOR
IMPROPER INSTALLATION. PENTAIR MYERS RECOMMENDS INSTALLATION BY PROFESSIONALS.
Some states do not permit some or all of the above warranty limitations or the exclusion or limitation of incidental or
consequential damages and therefore such limitations may not apply to you. No warranties or representations at any
time made by any representatives of Pentair Myers shall vary or expand the provision hereof.