Pentair MYERS S25M1C 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.
STEP-1
EFFLUENT PUMPING
INSERT PACKAGE
INSTALLATION AND SERVICE MANUAL
Part # 13800A978 | © 2012 Pentair Pump Group, Inc. | 11/07/12

13800A978 11/07/12 2
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.
PACKAGE INCLUDES
• 1-1/2" plastic ball shut-off valve and handle
• 1-1/2" plastic check valve
• Poly junction box with cord grips
• ALC level control switch
• Alarm switch
• Plastic fittings and length of 1-1/2"
plastic pipe
• Plastic adapter for 1-1/4" and 1-1/2" NPT thread to
1-1/2" solvent weld pipe
• Plastic rope
• 48" deep tank with inlet holes around bottom,
18" riser with 1-1/2" hub for power and 1-1/2" hub
for pump discharge (threaded)
• Fiberglass cover with locking holes
BASIN INSTALLATION
A. Remove basin unit from carton.
B. Remove parts package from inside basin.
C. Remove shipping restraints from orange alarm
switch.
D. Check to make sure basin assembly will fit into
tank and rest on first shoulder (requires 18-1/2"
dia. round hole). If the hole is square, an adapter
plate may be required.
Adapter plate will cover a hole as large as 24". The
plate should be caulked or cemented to top of tank
so a water-tight seal is obtained. For additional
security, holes may be drilled around the edge of
the plate and lag bolted to top of tank.
E. After it has been determined that the tank fits
properly into the access hole and that the tank
flange arrangement leaves no holes for infiltration,
build up an approximately 1" thick ridge of mortar
or caulking around the lip of the access hole.
F. Set the basin into the hole making sure that the
mortar seals all the way around the basin flange.
Care should be taken to make sure discharge
flange is pointed in proper direction.
PUMP INSTALLATION
A. Remove threaded flanged end from valve
assembly. Be careful not to drop square sealing
ring out of flange. Screw threaded end of flange
onto discharge pipe nipple.
B. The 1-1/2" plastic discharge pipe must be cut to
length and cemented into the check valve and
properly sized adapter depending on the type of
pump you are using. This dimension is important
and should be measured accurately and have a
relatively square cut on the end. After the pipe is
cut, screw the adapter into the pump discharge
case, slip the pipe into the socket and slip the
valve assembly over the top of the pipe.
1-1/2" DISCHARGE PIPE LENGTH
PUMP
MODEL
DISCHARGE
ADAPTER
CUT 1-1/2"
PIPE LENGTH
TO
S25 1-1/2" 42"
S4 1-1/2" 42"
WHRE 2"* 38-1/2"
*This adapter does not come with package, but may be
ordered separately.
Measure from the bottom of the pump to the
bottom of the valve. This dimension should be
the same as from the bottom of the basin to the
bottom of the flange on the discharge pipe.
If the pipe is a little short, it can be lengthened
slightly when the pipes are cemented together
(make sure there is enough contact inside solvent
weld sleeve to secure pipe). If the pipe is too long,
it may have to be cut off.
C. The pipes are now ready to cement. Make sure
that the pipes are positioned in correlation to
pump.
D. Use a good grade PVC cement. All parts should be
clean. Apply a liberal coat of cement on both parts
to be mated. Assemble parts and make 1/4 twist.
Make sure parts are aligned before cement sets
up.
E. After the cement has set up, fasten the nylon
rope to the top of the pump and carefully lower
the pump into the tube using the rope to bear the
weight of the pump.
F. Fasten the valve coupling to the valve flange that
has been installed on discharge nipple. (Make sure
the square sealing gasket has been installed in
the flange.) The flange face should line up with the
discharge without bending or straining the parts.
Secure the top end of the nylon rope by tying
around the discharge pipe.
G. Remove top of junction box by removing 4 screws.
Cut off power cord on pump approximately 1'
longer than the top of the basin (pull pump cord
NOTE: Make sure sealing ring does not drop out
of flange face. You may want to remove this ring
until you are ready for final assembly.

13800A978 11/07/12
3
so it extends 1' outside of basin and cut off). Strip
outside jacket so about 8" of single insulated wire
is showing. Run power cord through the empty
cord grip in the junction box so that the outer cord
jacket shows inside the junction box and tighten
the cord grip around the cable jacket.
CONNECTING
LEVEL CONTROL
SWITCH
A. The weights on the
level control switch
are preset at the
factory.
B. Screw the weight
assembly onto the
bottom of the switch
plunger.
WIRING
A. Run wire from entrance panel or other adequate
source to junction box. Direct bury or individual
stranded wire in conduit may be used. Two wires
and ground are required for the pump and an
additional 2 wires (14 ga.) are required for alarm.
B. Enter the 1-1/2" conduit flange and pull the wires
up into the junction box so the leads stick out
about 6". The alarm wires should be marked or
color coded so they can be identified.
C. The incoming lines must be sealed to keep
condensation moisture or ground water from
entering the junction box.
CONNECTING PUMP, SWITCH
AND ALARM
A. Connect black wire from pump to black wire on
ALC (black) switch.
B. Connect white wire of pump to white wire of
incoming power.
C. Connect the 2 wires from the alarm switch (orange
ball) to the 2 incoming alarm wires.
D. Connect incoming ground wire to green wire of
pump.
E. Make sure wire connections are correct and
secure. Push wires into box and put on cover.
Make sure the cord grips around the incoming
cables are snug.
The fiberglass basin cover may be locked by
inserting padlocks through the holes on each side
of the cover. If locking is not required, the cover
may be held on by bolts supplied.
CONNECTING ALARM
Two types of alarms are available:
1. Inside alarm fastens to inside wall and plugs into
110V outlet. Audible alarm warns of high water.
Unit also has alarm silence and test switch.
2. Outside alarm fastens to side of house or post
and has red flashing light. This alarm has 2 circuit
breakers, one for pump and one for the alarm.
Terminal blocks are supplied for connecting
the pump and alarm wires and the enclosure is
lockable.
WIRE SELECTION TABLE FOR EFFLUENT PUMPS
PUMP MODEL VOLTAGE HP
MAX.
AMPS
WIRE SIZE REQUIRED PER TOTAL LENGTH OF LINE IN FEET*
100 200 300 400 500
S25M1C 115 1/4 8 14 12 10 10 8
S4M1C 115 4/10 12 14 12 10 8 6
S4M2C 230 4/10 6 14 14 14 14 12
WHRE-11C 115 1/2 14.4 12 10 8 6 6
WHRE5-21C 230 1/2 7.2 14 14 14 12 12
WHRE10-21C 230 1 9.0 14 14 12 12 10
WHRE20-21C 230 2 14.5 12 12 12 10 10
* Wire selection based on allowable voltage drop within system rated at normal voltage.
If low voltage is expected, it may be necessary to go to the next larger wire size.

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.
1101 MYERS PARKWAY 490 PINEBUSH ROAD, UNIT 4
ASHLAND, OHIO 44805 CAMBRIDGE, ONTARIO, CANADA N1T 0A5
PH: 855-274-8947 PH: 800-363-7867
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