Pentair Plumbing Product MPE User Manual

TM  
DYNA-PRO  
CENTRIFUGAL PUMPS  
WITH INTEGRAL TRAP  
O W N E R ’ S M A N U A L  
(Unions optional)  
INSTALLATION, OPERATION & PARTS  
Series MPRA, MPEA, and MPE  
See Page 3 for Model Numbers  
This manual should be furnished to  
the end user of this pump; its use will  
reduce service calls and chance of  
injury and will lengthen pump life.  
Pentair Water Pool and Spa, Inc.  
Sanford, N.C., Moorpark, CA, USA  
Ontario, Canada  
Herentals, Belgium  
S771 (Rev. B 2/8/08)  
 
READ AND FOLLOW  
SAFETY INSTRUCTIONS!  
‘MPRA, ‘MPEA’ & MPE’  
SERIES PUMPS WITH  
TRAP  
To avoid unneeded service calls, prevent possible in-  
juries, and get the most out of your pump, READ THIS  
MANUAL CAREFULLY!  
This is the safety alert symbol. When you see this  
symbol on your system or in this manual, look for  
one of the following signal words and be alert to the po-  
tential for personal injury.  
The Sta-Rite ‘MPRA’, ‘MPEA’ & ‘MPE’ Series Self-priming  
Centrifugal pump:  
warns about hazards that will cause death,  
serious personal injury, or major property damage  
if ignored.  
• Is designed for use with swimming pools or as a cen-  
trifugal pump.  
• Is an excellent performer; durable, reliable.  
warns about hazards that can cause death,  
serious personal injury, or major property damage  
if ignored.  
Table of Contents  
Safety Instructions .....................................................3-4  
warns about hazards that will or can cause  
minor personal injury or property damage if ignored.  
Installation.................................................................4-5  
Pool Pump Suction Requirements ..............................6-6  
Electrical ...................................................................6-8  
Operation.....................................................................9  
Storage/Winterizing ...................................................9-10  
Pump Service ..........................................................10-11  
Troubleshooting Guide ...............................................12  
Repair Parts List .....................................................13-14  
NOTICE indicates special instructions not related to haz-  
ards.  
Carefully read and follow all safety instructions in this  
manual and on equipment. Keep safety labels in good  
condition; replace if missing or damaged.  
Incorrectly installed or tested equipment  
may fail, causing severe injury or property  
damage.  
Read and follow instructions in owner's manual when in-  
stalling and operating equipment. Have a trained pool  
professional perform all pressure tests.  
Single Speed Models  
HP  
MPRA  
MPE, MPEA  
1/2  
3/4  
1
1-1/2  
2
2-1/2  
MPE6C-204L  
MPRA6D-204L  
MPRA6E-205L  
MPRA6F-206L  
MPRA6G-207L  
MPEA6D-204L, MPE6D-205L  
MPEA6E-205L, MPE6E-206L  
MPEA6F-206L, MPE6F-207L  
MPEA6G-207L, MPE6G-208L  
MPEAA6G-208L  
Two Speed Models  
HP  
MPRA  
MPE, MPEA  
1-1/2  
2
2-1/2  
MPRA6YF-206L  
MPE6YF-207L  
MPEA6YG-207L, MPE6YG-208L  
MPEAA6YG-208L  
3
 
1. Do not connect system to a high pressure or city water  
system.  
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2. Use equipment only in a pool or spa installation.  
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3. Trapped air in system can cause explosion. BE SURE all  
air is out of system before operating or testing equipment.  
C
Before pressure testing, make the following safety  
checks:  
Arrows  
• Check all clamps, bolts, lids, and system accessories  
before testing.  
Tab  
• Release all air in system before testing.  
Discharge  
Port  
Water pressure for test must be less than 25 PSI  
2
(7.5 kg/cm ).  
• Water Temperature for test must be less than 100o F.  
Figure 1 – Strainer basket cover alignment.  
(38o C).  
• Limit test to 24 hours. After test, visually check system  
to be sure it is ready for operation. Remove trap lid and  
retighten hand tight only, see Figure 1.  
INSTALLATION  
Only qualified, licensed personnel should install pump  
and wiring.  
NOTICE: These parameters apply to Sta-Rite equipment  
only. For non-Sta-Rite equipment, consult manufacturer.  
Strainer Basket  
Discharge Port  
to Filter or Pool  
Cover  
NOTICE: Do not start the pump until the strainer basket  
cover is on and the tab, or rib, on the discharge port  
aligns between the arrows.  
Bonding Lug  
Suction  
Port  
from  
Pool or  
Vacuum  
Filters  
IMPORTANT SAFETY  
INSTRUCTIONS  
Always follow basic safety precautions with this  
equipment, including the following.  
Pump may be bolted to level  
foundation or mounting bracket.  
To reduce the risk of injury, do not per-  
mit children to use this product unless they are closely  
supervised at all times.  
Figure 2  
NOTICE: Port threads are: Internal - 2" NPT for direct connec-  
tion to pipe. External - 3-1/4" Buttress. Fits Sta-Rite U11-200P  
Union Collar for quick disconnect pipe connection.  
This pump is for use with permanently  
installed pools and may also be used with hot tubs and  
spas if so marked. Do not use with storable pools. A  
permanently installed pool is constructed in or on the  
ground or in a building such that it cannot be readily  
disassembled for storage. A storable pool is con-  
structed so that it may be readily disassembled for stor-  
age and reassembled to its original integrity.  
See Page 13 for Union Kits.  
Pump mount must:  
Be located away from corrosive or flammable liquids.  
Have enough ventilation to maintain air temperature at less  
than the maximum ambient temperature rating (Max. Amb.)  
listed on the motor model plate. If this pump is installed in  
an enclosure/pump house, the enclosure must have ade-  
quate ventilation and air circulation to keep the tempera-  
ture in the enclosure at or below the motor’s rated ambient  
temperature whenever the pump is running.  
SAVE THESE  
INSTRUCTIONS  
Be solid - Level - Rigid - Vibration free. (To reduce vibra-  
tion and pipe stress, bolt pump to mount.)  
4
 
POOL PUMP SUCTION  
REQUIREMENTS  
Allow pump suction inlet height to be as close to water  
level as possible. Pump will not lift water more than  
10' (3m).  
Pump suction is haz-  
ardous and can trap and  
drown or disembowel  
bathers. Do not use or oper-  
ate swimming pools, spas, or  
hot tubs if a suction outlet  
cover is missing, broken, or  
loose. Follow the guidelines  
below for a pump installation  
Allow use of short, direct suction pipe (To reduce friction  
losses).  
Allow for gate valves in suction and discharge piping.  
Have adequate floor drainage to prevent flooding.  
Be protected from excess moisture.  
Allow adequate access for servicing pump and piping.  
Fire and burn hazard. Modern motors run at  
high temperatures. To reduce the risk of fire, do not allow  
leaves, debris, or foreign matter to collect around the  
pump motor. To avoid burns when handling the motor, let  
it cool for 20 minutes before trying to work on it.  
Hazardous suction.  
which minimizes risk to users  
of pools, spas, and hot tubs.  
Can trap hair or  
body parts, causing  
severe injury  
or death.  
Entrapment Protection  
The pump suction system  
must provide protection  
against the hazard of  
NOTICE: When connecting threaded pipe directly to pump,  
use Teflon® tape or Plasto-Joint Stito seal connections. Do  
not use pipe dope; pipe dope causes cracking in some plas-  
tics and may damage components in piping system.  
Do not block  
suction.  
suction entrapment or hair entrapment/entanglement.  
When connecting pipe to pump with union half, use  
Teflon® tape or Plasto-Joint Stik® between pipe and union  
adapter. Union collar to pump should be assembled dry  
and hand-tight.  
NOTICE: Pump suction and discharge connections have  
molded in thread stops. DO NOT try to screw pipe in be-  
yond these stops.  
Suction Outlet Covers  
All suction outlet covers must be maintained. They must  
be replaced if cracked, broken, or missing.  
See Page 6 for outlet cover certification requirements.  
All suction outlets must have correctly installed, screw-fas-  
tened covers in place.  
Teflon® Taping Instructions:  
Use only new or clean PVC pipe fittings.  
Suction Outlets Per Pump (Figure 3, Page 6)  
Provide at least two hydraulically balanced main drains,  
with covers, as suction outlets for each circulating pump  
suction line. The centers of the main drains (suction outlets)  
on any one suction line must be at least three feet apart.  
Wrap male pipe threads with one to two layers of Teflon®  
tape. Cover entire threaded portion of pipe.  
Do not overtighten or tighten past thread stop in pump port!  
If leaks occur, remove pipe, clean off old tape, rewrap  
with one to two additional layers of tape and remake the  
connection.  
The system must be built so that it cannot operate with  
the pump drawing water from only one main drain (that  
is, there must be at least two main drains connected to  
the pump whenever it is running – see Figure 3, Page 6).  
However, if two main drains run into a single suction  
line, the single suction line may be equipped with a valve  
which will shut off both main drains from the pump (see  
Figure 3).  
NOTICE: Support all piping connected with pump!  
Piping:  
Use at least 2" (51mm) pipe. Increase size if a long run is  
needed.  
To avoid strains on the pump, support both suction and  
discharge pipes independently. Place these supports near  
the pump.  
More than one pump can be connected to a single suc-  
tion line as long as the requirements above are met.  
To avoid a strain left by a gap at the last connection, start  
all piping at the pump and run pipe away from the pump.  
To avoid airlocking, slope suction pipe slightly upward  
toward the pump.  
NOTICE: To prevent flooding when removing pump for  
service, all flooded suction systems must have gate valves  
in suction and discharge pipes.  
5
 
Water Velocity  
ELECTRICAL  
The maximum water velocity through the suction fitting  
or cover for any suction outlet must not exceed 1.5 feet  
per second unless the outlet complies with the latest  
ANSI/ASME Specification for Suction Fittings For Use in  
Swimming Pools, Spas, Hot Tubs, and Whirlpool Bathtub  
Applications. In any case, do not exceed the suction fit-  
ting’s maximum designed flow rate.  
Ground motor before  
connecting to electrical  
power supply. Failure to  
ground motor can cause se-  
vere or fatal electrical shock  
hazard.  
Do not ground to a gas  
supply line.  
If 100% of the pump’s flow comes from the main drain  
system, the maximum water velocity in the pump suction  
hydraulic system must be six feet per second or less even  
if one main drain (suction outlet) is completely blocked.  
The flow through the remaining main drain(s) must com-  
ply with the latest ANSI/ASME Specification for Suction  
Fittings For Use in Swimming Pools, Spas, Hot Tubs, and  
Whirlpool Bathtub Applications.  
To avoid dangerous or  
fatal electrical shock,  
turn OFF power to motor be-  
fore working on electrical  
connections.  
Hazardous voltage.  
Can shock, burn,  
or cause death.  
Ground Fault Circuit  
Interrupter (GFCI) trip-  
ping indicates an electrical  
problem. If GFCI trips and  
will not reset, have a qualified  
Disconnect power  
before working  
on pump or motor.  
Testing and Certification  
Suction outlet covers must have been tested by a nation-  
ally recognized testing laboratory and found to comply  
with the latest ANSI/ASME Specifications for Suction  
Fittings For Use in Swimming Pools, Spas, Hot Tubs, and  
Whirlpool Bathtub Applications.  
electrician inspect and repair electrical system.  
Exactly match supply voltage to nameplate voltage.  
Incorrect voltage can cause fire or seriously dam-  
age motor and voids warranty. If in doubt consult a li-  
censed electrician.  
Fittings:  
Voltage  
Fittings restrict flow; for best efficiency use fewest possi-  
ble fittings (but at least two suction outlets).  
Voltage at motor must be not more than 10% above or  
below motor nameplate rated voltage or motor may over-  
heat, causing overload tripping and reduced component  
life. If voltage is less than 90% or more than 110% of  
rated voltage when motor is running at full load, consult  
power company.  
Avoid fittings which could cause an air trap.  
Pool fittings must conform to International Association of  
Plumbing and Mechanical Officials (IAPMO) standards.  
Use only non-entrapping suction fitting or double suction.  
At Least  
3 Feet  
IAPMO Certified  
Anti-entrapment  
Cover or Suction Fitting,  
screw-fastened to  
Main Drain Sump  
IAPMO Certified  
Anti-entrapment  
Cover or Suction Fitting,  
screw-fastened to  
Main Drain Sump  
No valves between  
Tee and Main Drains  
Suction Outlet  
(Main Drain)  
Suction Outlet  
(Main Drain)  
Pump  
2762 0197  
Valves OK between  
pump and Tee  
Figure 3 – Recommended pump suction layout.  
6
 
1. Turn off power.  
Grounding/Bonding  
Install, ground, bond and wire motor according to local  
or National Electrical Code requirements.  
Permanently ground motor. Use green ground terminal  
provided under motor canopy or access plate (See Figure  
4); use size and type wire required by code. Connect  
motor ground terminal to electrical service ground.  
2. Remove the motor end cover.  
To Wire a Single Speed, Single Voltage Motor  
There are two terminals labeled L1 and L2. Attach the  
power leads to these terminals. Either wire may attach to  
either terminal.  
Bond motor to pool structure. Use a solid copper conductor,  
size No. 8 AWG (8.4 sq.mm) or larger. Run wire from exter-  
nal bonding lug (see Figure 4) to reinforcing rod or mesh.  
To Wire a Dual-Voltage Motor  
Dual voltage motors have a plug to change from 230 volts  
(factory setting) to 115 volts.  
Bonding  
Lug  
1. If you have 230 volts motor supply voltage, confirm  
that the plug is set for 230 volts. The arrow on the plug  
will point to the 230 volt position. Note that plug only  
connects with one prong in this position.  
Green  
Ground  
Screw  
A
2. If you have 115 volt supply, pull the plug straight up  
L2  
and place it on the two brass prongs as shown.  
Figure 4 – Typical ground screw and bonding lug  
locations.  
Connect a No. 8 AWG (8.4 sq.mm) solid copper bonding  
wire to the pressure wire connector provided on the  
motor housing and to all metal parts of the swimming  
pool, spa, or hot tub and to all electrical equipment,  
metal piping or conduit within 5 feet (1.5 m) of the inside  
walls of swimming pool, spa, or hot tub.  
Wiring  
NOTICE: 3 phase models require magnetic motor starters  
and external overload protection. If in doubt about the  
procedure, consult a licensed electrician.  
Figure 5B -Voltage Change  
Figure 5A -Voltage Change  
Plug Set for 230 Volts  
Pump must be permanently connected to circuit. Table I,  
Page 8, give correct wire and circuit breaker sizes for the  
pump alone. If other lights or appliances are also on the  
same circuit, be sure to add their amp loads to pump  
amp load before figuring wire and circuit breaker sizes.  
(If unsure how to do this or if this is confusing, consult a  
licensed electrician.) Use the load circuit breaker as the  
master on-off switch.  
Plug Set for 115 Volts  
NOTE: Arrow is highlighted for clarity.  
To Wire a Two-Speed Motor  
Wire the pump as shown in the diagram.  
Install a Ground Fault Circuit Interrupter (GFCI) in circuit;  
it will sense a short-circuit to ground and disconnect  
power before it becomes dangerous to pool users. For  
size of GFCI required and test procedures for GFCI, see  
manufacturer’s instruction.  
Ground (Green)  
Low Speed  
230  
Volt  
Lines  
A
Back of  
motor  
with  
Terminal  
Board  
L2  
Common  
In case of power outage, check GFCI for tripping (which  
will prevent normal pump operation). Reset if necessary.  
Power Supply for  
Optional Timer.  
L1  
NOTICE: If you do not use conduit when wiring motor,  
be sure to seal wire opening on end of motor to prevent  
dirt, bugs, etc., from entering.  
High Speed  
Circuit  
Protector  
Remote  
SPDT  
Switch  
If using timer, Connect  
Timer Motor to Low Speed Only  
4558 0304  
Risk of dangerous or fatal electrical shock.  
Be sure that power to the motor circuit is off before  
working on wiring, wiring connections, or motor. Re-in-  
stall the motor end cover and all other wiring covers be-  
fore turning on the power.  
Minimum switch and timer amp rating must equal Branch Fuse  
Rating given in "Recommended Fusing and Wiring Data" table.  
Figure 5C: 2-Speed Motor Wiring Diagram  
7
 
TABLE I - RECOMMENDED CIRCUIT BREAKER AND WIRING DATA  
Serv. to Motor - Dist. in Ft. (M)  
Motor  
HP  
Branch CB  
Rating Amps  
Max Load  
Amps  
Voltage/  
Hz/Phase  
0-100'  
(0-30)  
101-200'  
(30-60)  
201-300'  
(60-90)  
MPRA SERIES – SINGLE SPEED  
3/4  
1
1-1/2  
2
20/15  
20/15  
25/15  
20  
13.4/6.7  
15.3/7.6  
19.2/9.6  
12.0  
115/230/60/1 12/14(3/2) 10/14(5.5/2) 8/14(8.4/2)  
115/230/60/1 12/14(3/2) 8/14(8.4/2) 6/14(14/2)  
115/230/60/1 10/14(5.5/2) 8/14(8.4/2) 6/12(14/3)  
AWG  
Wire  
Size  
}
}
2
(mm )  
230/60/1  
14(2)  
14(2)  
12(3)  
MPEA SERIES – SINGLE SPEED  
3/4  
1
1-1/2  
2
15/15  
20/15  
25/15  
15  
11.0/5.5  
13.8/6.9  
16.0/8.0  
10.4  
115/230/60/1 14/14(2/2) 10/14(5.5/2) 8/14(8.4/2)  
115/230/60/1 12/14(3/2) 10/14(5.5/2) 8/14(8.4/2)  
115/230/60/1 12/14(3/2) 8/14(8.4/2) 6/14(14/2)  
AWG  
Wire  
Size  
2
(mm )  
230/60/1  
230/60/1  
14(2)  
14(2)  
14(2)  
14(2)  
12(3)  
12(3)  
2-1/2  
15  
11.2  
MPRA SERIES – TWO SPEED  
1-1/2 – 1/4  
15  
9.2/2.5  
230/60/1  
14(2)  
14(2)  
12(3)  
AWG  
Wire  
Size  
MPEA SERIES – TWO SPEED  
}
2
(mm )  
2 – 1/4  
2-1/2 – 1/2  
15  
15  
10.0/3.0  
11.3/3.3  
230/60/1  
230/60/1  
14(2)  
14(2)  
14(2)  
12(3)  
12(3)  
12(3)  
MPE SERIES – SINGLE SPEED  
1/2  
3/4  
1
1-1/2  
2
15/15  
20/15  
25/15  
15  
11.0/5.5  
13.8/6.9  
16.0/8.0  
10.4  
115/230/60/1 14/14(2/2) 10/14(5.5/2) 8/14(8.4/2)  
115/230/60/1 12/14(3/2) 10/14(5.5/2) 8/14(8.4/2)  
115/230/60/1 12/14(3/2) 8/14(8.4/2) 6/14(14/2)  
AWG  
Wire  
Size  
}
2
(mm )  
230/60/1  
230/60/1  
14(2)  
14(2)  
14(2)  
14(2)  
12(3)  
12(3)  
15  
11.2  
MPE SERIES – TWO SPEED  
1-1/2 – 1/4  
2 – 1/3  
AWG  
Wire  
Size  
15  
15  
10.0/3.0  
11.3/3.3  
230/60/1  
230/60/1  
14(2)  
14(2)  
14(2)  
12(3)  
12(3)  
12(3)  
}
2
(mm )  
8
 
Replace trap cover on trap; turn clockwise to tighten  
cover.  
OPERATION  
NOTICE: NEVER run pump dry. Running pump dry may  
damage seals, causing leakage and flooding. Fill pump  
with water before starting motor.  
NOTICE: Tighten trap cover handle ring by hand only  
(no wrenches)! See Figure 1, Page 4.  
Pump should prime now. Priming time will depend on  
vertical length of suction lift and horizontal length of suc-  
tion piping.  
Before removing trap cover:  
1. STOP PUMP before proceeding.  
If pump does not prime, make sure that all valves are open,  
suction pipe end is under water, pump is not trying to lift  
water more than 10' (3m), and that there are no leaks in  
suction pipe. See Troubleshooting Guide, Page 12.  
2. CLOSE GATE VALVES in suction and discharge pipes.  
3. RELEASE ALL PRESSURE from pump and piping system.  
If pump is being pressure tested, be sure pressure  
has been released before removing trap cover.  
Routine Maintenance  
The only routine maintenance needed is  
inspection/cleaning of trap basket. Debris or trash that  
collects in basket will choke off water flow through the  
pump. Follow instructions below to clean trap:  
Do not block pump suc-  
tion. To do so with  
body may cause severe or  
fatal injury. Small children  
using pool must ALWAYS  
have close adult supervision.  
1. Stop pump, close valves in suction and discharge, and  
release all pressure from system before proceeding.  
Fire and burn  
hazard. Modern motors run at  
2. Remove trap cover handle ring (turn counterclock-  
wise). If necessary, tap handles gently with a rubber  
mallet.  
high temperatures. To reduce  
the risk of fire, do not allow  
leaves, debris, or foreign mat-  
ter to collect around the pump  
motor. To avoid burns when  
handling the motor, let it cool  
for 20 minutes before trying to  
work on it. An automatic in-  
Hazardous suction.  
Can trap hair or  
body parts, causing  
severe injury  
3. Remove strainer basket and clean. Be sure all holes in  
basket are clear, flush basket with water and replace in  
trap with large opening at pipe connection port (be-  
tween ribs provided). If basket is replaced backwards  
cover will not fit on trap body.  
or death.  
Do not block  
suction.  
4. Clean and inspect lid O-Ring; reinstall on trap groove.  
ternal cutoff switch protects the motor from heat damage  
during operation.  
5. Clean O-Ring groove on trap body and replace cover  
and handle ring. To help keep cover from sticking,  
tighten hand tight only.  
NOTICE: Maximum ambient temperature for motor oper-  
ation must not exceed maximum ambient temperature on  
motor nameplate.  
6. Prime pump (see priming instructions).  
Storage/Winterizing  
NOTICE: Allowing pump to freeze will damage pump  
and void warranty!  
Priming Pump  
Release all pressure from filter, pump, and piping system;  
see the filter owner’s manual.  
NOTICE: Do not use anti-freeze solutions (except propy-  
lene glycol) in your pool/spa system. Propylene glycol,  
“RV antifreeze”, is non-toxic and will not damage plastic  
system components; other anti-freezes are highly toxic  
and may damage plastic components in the system.  
In a flooded suction system (water source higher than  
pump), pump will prime itself when suction and dis-  
charge valves are opened.  
If pump is not in a flooded suction system, unscrew and  
remove trap cover; fill trap and pump with water.  
Drain all water from pump and piping when expecting  
freezing temperatures or when storing pump for a long  
time (see instructions below).  
Clean and inspect O-Ring; reinstall on trap groove.  
Do not lubricate the trap cover O-Ring. The original  
equipment O-Ring contains a permanent internal lubri-  
cant.  
Keep motor dry and covered during storage.  
To avoid condensation/corrosion problems, do not cover  
pump with plastic.  
NOTICE: If you replace the O-Ring with a non-internally  
lubricated O-Ring, you may need to apply a silicone  
based lubricant.  
9
 
For outdoor/unprotected installations:  
Startup For Winterized Equipment  
1. Remove any temporary weather protection placed  
around system for shutdown.  
1. Enclose entire system in a weatherproof enclosure.  
2. To avoid condensation/corrosion damage, allow venti-  
lation; do not wrap system in plastic.  
2. Follow filter manufacturer’s instructions for reactiva-  
tion of the filter.  
3. Use a 40% propylene glycol/60% water solution to  
protect pump to -50°F (-46°C).  
3. Inspect all electrical wiring for damage or deterioration  
over the shutdown period. Have a qualified service-  
man repair wiring as needed.  
Draining Pump  
4. Inspect and tighten all watertight connections.  
5. Open all valves in suction and return piping.  
6. Remove any winterizing plugs in piping system.  
7. Drain all antifreeze from system.  
Explosion hazard. Purging the system with  
compressed air can cause components to explode, with  
risk of severe injury or death to anyone nearby. Use only  
a low pressure (below 5 PSI), high volume blower when  
air purging the pump, filter, or piping.  
1. Pump down water level below all inlets to the pool.  
8. Close all drain valves and replace all drain plugs in  
piping system.  
To avoid dangerous or  
fatal electrical shock  
hazard, turn OFF power to  
motor before draining pump.  
9. Prime pump according to instructions on Page 9.  
PUMP SERVICE  
2. Remove trap cover handle  
ring (turn counterclock-  
wise). If necessary, tap han-  
dles gently with a rubber  
mallet. Low pressure air  
can be used to remove re-  
maining water from the  
Pump should only be serviced by qualified personnel.  
For best results, use only genuine Sta-Rite factory parts.  
Be sure to prime pump (Page 9) before starting.  
Before removing trap cover:  
1. STOP PUMP before proceeding.  
Hazardous voltage.  
Can shock, burn,  
or cause death.  
piping.  
2. CLOSE GATE VALVES in suction and discharge pipes.  
3. RELEASE ALL PRESSURE from pump and piping system.  
3. Cap inlet piping after  
draining to keep water out  
of the pipes.  
Disconnect power  
before working  
on pump or motor.  
To avoid dangerous or  
fatal electrical shock  
hazard, turn OFF power to  
motor before working on  
pump or motor.  
4. To prevent pump from freez-  
ing, remove trap cover and  
drain the tank body through the two drain plugs provided.  
A. Gravity drain system as far as possible.  
B. Protect areas which retain water with non-toxic  
propylene glycol antifreeze (“RV” antifreeze).  
Aside from lubricating trap  
cover O-Ring, no lubrication  
or regular maintenance is  
needed beyond reasonable  
care and periodic cleaning of  
strainer basket.  
5. Clean pump thoroughly; replace trap cover.  
NOTICE: Tighten trap cover by hand only (no  
wrenches)! If pump is not anchored, use caution to  
not break attached piping!  
Hazardous voltage.  
Can shock, burn,  
or cause death.  
6. Be sure motor is kept dry and covered.  
Disconnect power  
before working  
on pump or motor.  
10  
 
If shaft seal is worn or damaged, repair as follows:  
Pump Reassembly/Installing New Seal  
1. Ceramic seat must be clean and free of dirt, grease,  
dust, etc. Wet outer edge with small amount of liquid  
detergent; press ceramic seat into seal plate cavity  
firmly and squarely with finger pressure (Figure 7).  
Pump Dissasembly/Removing Old Seal  
Disconnect power to pump motor.  
Be sure valves on suction and return piping are  
closed before starting work.  
Polished  
Release all pressure by opening all vents before starting  
work.  
surface  
Rubber  
surface  
1. Drain pump by removing drain plugs on bottom of  
pump body and trap body.  
2. Be sure there is no pressure in trap body; remove  
cover (unscrew by turning counterclockwise).  
3. Remove 6 nuts, lockwashers and flat washers holding  
seal plate to pump body. Pull seal plate and motor  
away from pump body. (You may have to CAREFULLY  
use a screwdriver to separate body from seal plate.)  
Figure 7  
4. Remove seven screws and washers holding diffuser to  
seal plate. Remove diffuser.  
2. If ceramic seat will not locate properly, remove it,  
place face up on bench and reclean cavity. Ceramic  
seat should now locate.  
5. Remove motor canopy. Being careful not to touch ca-  
pacitor terminals, loosen capacitor clamp and move  
capacitor to one side.  
3. If seat still will not locate properly, place a cardboard  
washer over the polished face and use a piece of 3/4"  
(19mm) standard pipe for pressing purposes.  
NOTICE: Be sure not to scratch or mar polished sur-  
face or seal will leak.  
6. Hold shaft with 7/16" open-end wrench on motor  
shaft flats.  
7. Unscrew impeller from shaft (turn counterclockwise  
when facing it).  
4. Replace slinger on end of motor shaft so that impeller  
sleeve will push it into position. If slinger shows signs  
of wear or damage, replace it.  
NOTICE: On 2 HP model, remove impeller screw  
(left hand thread - turn clockwise) and gasket before  
removing impeller. Inspect gasket for damage,  
cracks, etc. Replace if damaged.  
5. Remount seal plate on motor. Tighten bolts to 60-80  
inch-lbs. (69-92 kg/cm) torque.  
8. Remove four screws holding seal plate to motor.  
6. Apply a small amount of liquid detergent to inside di-  
9. Place seal plate face down on flat surface and tap out  
ceramic seat (Figure 6).  
ameter of rotating half of seal.  
7. Slide rotating seal member, polished carbon face out,  
over impeller sleeve until rubber drive ring hits back  
of impeller.  
10. Remove slinger from motor shaft and inspect for dam-  
age or abrasion.  
NOTICE: Be sure not to nick or scratch polished seal  
face; seal will leak if face is damaged.  
11. Clean seal cavity in seal plate and clean motor shaft.  
8. Screw impeller onto shaft (clockwise); this will auto-  
matically locate seal in seal plate.  
NOTICE: On 2 and 2-1/2 HP models; install impeller  
gasket and lock screw (left-hand thread - turn coun-  
terclockwise). Torque lock screw to 50-55 inch-lbs.  
(57.6-63 kg/cm).  
Mechanical seal  
ceramic seat  
9. Mount diffuser on seal plate; tighten screws to 10-14  
inch-lbs. (11.2-16.1 kg/cm) torque.  
10. Assemble motor and seal plate to pump body with  
nuts, flat washers and lock washers. Torque nuts to  
120-130 in-lbs. (138-150 kg/cm).  
11. Prime pump according to instructions on Page 9.  
Figure 6  
11  
 
Electrical:  
TROUBLESHOOTING  
GUIDE  
10. Pump may be running too  
slowly; check voltage at  
motor terminals and at  
meter while pump is run-  
ning. If low, see wiring in-  
structions or consult  
Read and understand safety and operating  
instructions in this manual before doing any  
work on pump!  
Only qualified personnel should electrically test  
pump motor!  
power company. Check  
for loose connections.  
FAILURE TO PUMP; REDUCED CAPACITY  
OR DISCHARGE PRESSURE  
11. Pump may be too hot.  
A. Check line voltage; if  
less than 90% or more  
than 110% of rated  
voltage consult a  
licensed electrician.  
B. Increase ventilation.  
Suction leaks/lost prime:  
Hazardous voltage.  
Can shock, burn,  
or cause death.  
1. Pump must be primed; make sure that pump volute  
and trap are full of water. See priming instructions,  
Page 9.  
Disconnect power  
before working  
on pump or motor.  
2. Make sure there are no leaks in suction piping.  
C. Reduce ambient  
temperature.  
3. Make sure suction pipe inlet is well below the water  
level to prevent pump from sucking air.  
D.Tighten any loose connections.  
4. If suction trap O-Ring is defective, replace it.  
5. Make sure pump is not trying to lift water more than  
10' (3m).  
MECHANICAL TROUBLES AND NOISE  
1. If suction and discharge piping are not adequately  
supported, pump assembly will be strained. See  
“Installation”, Page 4.  
6. Make sure suction pipe is at least 2" (51mm) in diameter.  
Clogged pipe/trap/impeller, worn impeller:  
7. Make sure suction trap is not clogged; if it is, clean  
trap and strainer.  
2. Do not mount pump on a wooden platform!  
Securely mount on concrete platform for quietest  
performance.  
8. Make sure impeller is not clogged (follow steps 1  
through 7 under “Removing Old Seal”, Page 11;  
check impeller for clogging; follow steps 7 through  
11 under “Installing New Seal”, Page 11, for  
reassembly).  
9. Impeller and diffuser may be worn. If so, order replace-  
ment parts from Repair Parts List, Pages 13 and 14.  
12  
 
REPAIR PARTS LIST  
DYNA-PRO™ POOL PUMP  
1/2 through 2-1/2 HP Models  
Single Speed and Two Speed  
1
2
3
4
See  
Box A  
5
6
7
8
24  
8A  
8B  
12  
9
10  
23  
13  
14  
11  
22  
21  
20  
15A  
See  
Box A  
19  
18  
17  
16  
15B  
Model No.  
HP  
Motor (Key No. 1)  
Single Speed 115/230/60/1  
Box A  
MPRA6D-204L  
MPRA6E-205L  
3/4  
1
A100DLL  
A100ELL  
A100FLL  
AE100DLL  
AE100ELL  
AE100FLL  
AE100CHL  
AE100DHL  
AE100EHL  
For quick disconnect pipe connections,  
purchase separately:  
Pkg. 188 2" Slip 1/2 Union Kit or  
Pkg. 189 2" NPT 1/2 Union Kit.  
MPRA6F-206L  
MPEA6D-204L  
MPEA6E-205L  
MPEA6F-206L  
MPE6C-204L  
MPE6D-205L  
MPE6E-206L  
1-1/2  
3/4  
1
1-1/2  
1/2  
3/4  
1
Includes:  
U11-200PS Union Collar  
U9-362 O-Ring  
U11-196P 2" Slip adapter or  
U11-199P 2" NPT adapter.  
230/60/1  
MPRA6G-207L  
MPEA6G-207L  
MPEAA6G-208L  
MPE6F-207L  
2
2
A100GLL  
AE100GLL  
AE100G5LL  
AE100FHL  
AE100G5HL  
2-1/2  
1-1/2  
2
MPE6G-208L  
Two Speed 230/60/1  
MPRA6YF-206L  
MPEA6YG-207L  
MPEAA6YG-208L  
MPE6YF-207L  
1-1/2  
2
2-1/2  
1-1/2  
2
A100FLL-Y  
AE100GLL-Y  
AE100G5LL-Y  
AE100GLL-Y  
AE100G5LL-Y  
MPE6YG-208L  
13  
 
REPAIR PARTS LIST  
DYNA-PRO™ POOL PUMP  
1/2 through 2-1/2 HP Models Single Speed and Two Speed  
MPEA6G-207L  
MPEA6F-206L  
MPE6E-206L  
MPE6F-207L  
MPEA6YG-207L  
MPEAA6G-208L  
MPE6G-208L  
MPEA6D-204L  
MPEA6E-205L  
Key  
No.  
Part  
Description  
MPE6C-204L  
Qty. MPRA6D-204L  
MPE6D-205L  
MPRA6E-205L  
MPRA6F-206L  
MPRA6YF-206L  
MPE6YF-207L MPEAA6YG-208L  
MPRA6G-207  
MPE6G-208L  
2
3
4
5
6
7
8
8A  
8B  
9
10  
11  
12  
13  
14  
15A  
15B  
16  
17  
18  
19  
20  
21  
22  
23  
24  
Screw #10-32x1/2"  
Bonding Lug  
Slinger  
Seal Plate  
Seal Plate Cord Ring  
Shaft Seal  
Impeller  
Gasket  
Impeller Lock Screw  
Diffuser  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
7
7
6
6
6
2
4
1
1
U30-692SS  
U17-568  
17351-0009  
C3-184P  
U9-373  
37400-0027  
C105-236P  
U30-692SS  
U17-568  
17351-0009  
C3-184P  
U9-373  
37400-0027  
C105-236PB  
U30-692SS  
U17-568  
17351-0009  
C3-184P  
U30-692SS  
U17-568  
17351-0009  
C3-184P  
U30-692SS  
U17-568  
17351-0009  
C3-184P  
U9-373  
U9-373  
U9-373  
37400-0027  
C105-236PC  
37400-0027  
C105-236PDA  
33455-1047  
37337-6080  
C1-270P  
37400-0027  
C105-236PEA  
33455-1047  
37337-6080  
C1-270P  
C1-270PB  
U9-374  
C76-71P  
17307-0111  
35505-1440  
C8-58P  
U178-920P  
U30-919SS  
C4-77P  
C1-270PC  
U9-374  
C76-71P  
17307-0111  
35505-1440  
C8-58P  
U178-920P  
U30-919SS  
C4-77P  
C1-270P  
U9-374  
C76-71P  
17307-0111  
35505-1440  
C8-58P  
U178-920P  
U30-919SS  
C4-77P  
Diffuser O-Ring  
U9-374  
C76-71P  
U9-374  
C76-71P  
Tank and Trap Body (Only)  
Trap Lid and Ring Assembly  
Trap Cover O-Ring  
Trap Basket  
Drain Plug  
Mounting Screw 5/16-14x5/8"  
Base - Plastic  
Motor Pad - for Plastic Base  
Screw #8-32x7/8" Rd. Hd.  
Lock Washer #8 Ext. Tooth  
Flat Washer 3/8"  
Lock Washer 3/8"  
Nut 3/8-16 Hex  
Cap Screws 3/8-16x1-1/4" Hex. (LS Suffix)  
Cap Screws 3/8-16x1" Hex.  
Nameplate  
Tag, “CAUTION This pump equipped with  
mechanical shaft seal…”  
Voltage Sticker  
17307-0111  
35505-1440  
C8-58P  
U178-920P  
U30-919SS  
C4-77P  
17307-0111  
35505-1440  
C8-58P  
U178-920P  
U30-919SS  
C4-77P  
C35-45  
C35-45  
C35-45  
C35-45  
C35-45  
U30-542SS  
U43-21SS  
U43-62SS  
U43-12SS  
U36-38SSW  
U30-74SS  
32155-4071  
61002-0012  
U30-542SS  
U43-21SS  
U43-62SS  
U43-12SS  
U36-38SSW  
U30-74SS  
32155-4071  
61002-0012  
U30-542SS  
U43-21SS  
U43-62SS  
U43-12SS  
U36-38SSW  
U30-75SS  
U30-74SS  
32155-4071  
61002-0012  
U30-542SS  
U43-21SS  
U43-62SS  
U43-12SS  
U36-38SSW  
U30-75SS  
U30-74SS  
32155-4071  
61002-0012  
U30-542SS  
U43-21SS  
U43-62SS  
U43-12SS  
U36-38SSW  
U30-75SS  
U30-74SS  
32155-4071  
61002-0012  
1
1
U27-153  
C63-12  
U27-153  
C63-12  
U27-153  
C63-12  
U27-68  
C63-12  
U27-68  
C63-12  
Tag, “WARNING/CAUTION/Instructions...”  
• Not illustrated.  
14  
 
15  
 
P/N S771 Rev. B 2/8/08  
 

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