DYNA-GLASTM and DYNA-MAXTM
CENTRIFUGAL PUMPS
WITH INTEGRAL TRAP
O
W
N
E
R’
FOR
S
M
A
N
U
A
L
Y
ONL
N
ITIO
POS
(Unions optional)
INSTALLATION, OPERATION & PARTS
Series MPRA, MPEA, and MPFA
See Page 2 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.
Sta-Rite Pool/Spa Group
293 Wright Street, Delavan, WI 53115
International: 262-728-5551, FAX: 262-728-7550
www.starite.com
Union City, TN • Delavan, WI • Mississauga, Ont. • Murrieta, CA
© 2003, Sta-Rite Industries, Inc.
Printed in U.S.A.
S243 (10/6/03)
‘MPRA’, ‘MPEA’ & ‘MPFA’ SERIES
PUMPS WITH TRAP
To avoid unneeded service calls, prevent possible injuries, and get the most
out of your pump, READ THIS MANUAL CAREFULLY!
The Sta-Rite ‘MPRA’, ‘MPEA’ & ‘MPFA’ Series Self-priming Centrifugal pump:
• Is designed for use with swimming pools or as a centrifugal pump.
• Is an excellent performer; durable, reliable.
Table of Contents
Safety Instructions ........................................................................................3
Installation.................................................................................................4-5
Pool Pump Suction Requirements ..............................................................5-6
Electrical....................................................................................................7-8
Operation .....................................................................................................9
Storage/Winterizing .................................................................................9-10
Pump Service.........................................................................................11-12
Troubleshooting Guide ..........................................................................12-13
Repair Parts List .....................................................................................14-15
Warranty.....................................................................................................16
Single Speed Models
HP
3/4
1
1-1/2
2
2-1/2
MPRA
MPRA6D-146L, MPRA6D-146LC
MPRA6E-147L, MPRA6E-147LC
MPRA6F-148L, MPRA6F-148LC
MPRA6G-155L, MPR6G-155LC
MPEA
MPEA6D-146L
MPEA6E-147L
MPEA6F-148L
MPEA6G-155L
MPEAA6G-168L
Two Speed Models
HP
1-1/2
2
MPRA
MPRA6YF-174L, MPRA6YF-174LS
MPEA
MPEA6YG-175L
MPEA6YG-175LS
MPEAA6YG-168L
MPEAA6YG-168LS
2-1/2
2
MPFA
MPFA6D-176L
MPFA6E-146L
MPFA6F-147L
IMPORTANT
SAFETY
INSTRUCTIONS
Always follow basic safety precautions with this equipment, including the following.
To reduce the risk of
injury, do not permit children to
use this product unless they are
closely supervised at all times.
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 constructed so
that it may be readily disassembled for storage and reassembled
to its original integrity.
SAVE THESE
INSTRUCTIONS
READ AND FOLLOW SAFETY
INSTRUCTIONS!
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 potential for personal injury.
warns about hazards that will cause death, serious personal
injury, or major property damage if ignored.
warns about hazards that can cause death, serious personal
injury, or major property damage if ignored.
warns about hazards that will or can cause minor personal injury
or property damage if ignored.
NOTICE indicates special instructions not related to hazards.
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 installing
and operating equipment. Have a trained pool professional perform all pressure tests.
1. Do not connect system to a high pressure or city water system.
2. Use equipment only in a pool or spa installation.
3. Trapped air in system can cause explosion. BE SURE all air is out of system
before operating or testing equipment.
Before pressure testing, make the following safety checks:
•
•
•
•
Check all clamps, bolts, lids, and system accessories before testing.
Release all air in system before testing.
Tighten Sta-Rite trap lids to 30 ft. lbs. (4.1 kg-m) torque for testing.
Water pressure for test must be less than 25 PSI (7.5 kg/cm2).
• Water Temperature for test must be less than 100o F. (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.
NOTICE: These parameters apply to Sta-Rite equipment only. For
non-Sta-Rite equipment, consult manufacturer.
3
NOTICE: Port threads
are: Internal - 2" NPT
for direct connection to
pipe. External - 3-1/4"
Buttress. Fits Sta-Rite
U11-200P Union Collar
for quick disconnect
pipe connection.
DISCHARGE PORT
TO FILTER OR POOL
STRAINER BASKET
COVER
SUCTION
PORT
FROM
POOL
OR
VACUUM
FILTERS
See Page 14 for Union
Kits.
Figure 1
PUMP MAY BE BOLTED TO LEVEL
FOUNDATION OR MOUNTING BRACKET
037 0893
INSTALLATION
Only qualified, licensed personnel should install pump and wiring.
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 adequate ventilation and air circulation to keep the temperature in the enclosure at
or below the motor’s rated ambient temperature whenever the pump is running.
Be solid - Level - Rigid - Vibration free. (To reduce vibration and pipe stress,
bolt pump to mount.)
Allow pump suction inlet height to be as close to water level as possible.
Pump will not lift water more than 10'(3m).
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.
NOTICE: When connecting threaded pipe directly to pump, use Teflon tape or
Plasto-Joint Stik1 to seal connections. Do not use pipe dope; pipe dope causes
cracking in some plastics and may damage components in piping system.
When connecting pipe to pump with union half, use Teflon tape or PlastoJoint 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 beyond these stops.
1
Lake Chemical Co., Chicago, Illinois
4
Teflon Taping Instructions:
Use only new or clean PVC pipe fittings.
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.
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.
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.
POOL PUMP SUCTION
REQUIREMENTS
Pump suction is hazardous and can trap and drown or disembowel
bathers. Do not use or operate swimming pools, spas, or hot tubs if a suction outlet cover is missing, broken, or loose. Follow the guidelines below for a
pump installation which minimizes risk to users of pools, spas, and hot tubs.
Entrapment Protection
The pump suction system must provide protection against the hazard of
suction entrapment or hair entrapment/entanglement.
Hazardous suction.
Can trap hair or
body parts, causing
severe injury
or death.
Do not block
suction.
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-fastened covers in place.
Suction Outlets Per Pump (Figure 2, 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.
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 2, 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 2).
More than one pump can be connected to a single suction line as long as the
requirements above are met.
5
Water Velocity
The maximum water velocity through the suction fitting or cover for any suction outlet must be 1.5 feet per second unless the outlet complies with the latest ASME/ANSI Specification for Suction Fittings For Use in Swimming Pools,
Spas, Hot Tubs, and Whirlpool Bathtub Applications. In any case, do not exceed the suction fitting’s maximum designed flow rate.
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 comply with the latest
ASME/ANSI Specification for Suction Fittings For Use in Swimming Pools,
Spas, Hot Tubs, and Whirlpool Bathtub Applications.
Testing and Certification
Suction outlet covers must have been tested by a nationally recognized testing
laboratory and found to comply with the latest ASME/ANSI Specifications for
Suction Fittings For Use in Swimming Pools, Spas, Hot Tubs, and Whirlpool
Bathtub Applications.
Fittings:
Fittings restrict flow; for best efficiency use fewest possible fittings (but at least
two suction outlets).
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
No valves between
Tee and Main Drains
Suction Outlet
(Main Drain)
IAPMO Certified
Anti-entrapment
Cover or Suction Fitting,
screw-fastened to
Main Drain Sump
Suction Outlet
(Main Drain)
Pump
Valves OK between
pump and Tee
Figure 2 – Recommended pump suction layout.
6
2762 0197
ELECTRICAL
Wiring
Ground motor before connecting to electrical
power supply. Failure to ground motor can cause
severe or fatal electrical shock hazard.
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.
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.
Do not ground to a gas supply line.
To avoid dangerous or fatal electrical shock, turn
OFF power to motor before working on electrical
connections.
Ground Fault Circuit Interrupter (GFCI) tripping
indicates an electrical problem. If GFCI trips and
will not reset, have a qualified electrician inspect and
repair electrical system.
Exactly match supply voltage to nameplate voltage. Incorrect voltage can cause fire or seriously
damage motor and voids warranty. If in doubt consult a
licensed electrician.
Blue
L2
230
Volt
Lines
B
Voltage
A
Voltage at motor must be not more than 10% above or
below motor nameplate rated voltage or motor may
overheat, 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.
L1
White
469 0194A
Figure 4A – Wiring connection diagram for single speed,
single voltage motors.
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 Fig.
3); use size and type wire required by code. Connect
motor ground terminal to electrical service ground.
Bond motor to pool structure. Use a solid copper conductor, size No. 8 AWG (8.4 sq.mm) or larger. Run wire from
external bonding lug (see Fig. 3) to reinforcing rod or mesh.
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.
230 Volt to 115 Volt Conversion. Move plug to change voltage.
Ground
Screw
230 V
A
230V
115V
230V
115V
230V
115V
230V
115V
115 V
L2
L1
L2
L1
Power Supply
Wires
230 Volt to 115 Volt Conversion. Move plug to change voltage.
1. Pull plug
straight
out from
terminal
board.
230
Volts
Green
Ground
Screw
2. Plug in again
with arrow
on plug
pointing to
'115 Volts'.
115
Volts
A
L2
A
2.
115
Volts
A
1.
Ground
Screw
230
Volts
Bonding
Lug
230V
115V
A
L1
L1
L1
3962 0401 A
Figure 4B – Wiring connection diagram for 115/230V
dual voltage, single speed motors.
Figure 3 – Typical ground screw and bonding lug
locations.
7
In case of power outage, check GFCI for tripping (which will prevent normal
pump operation). Reset if necessary.
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.
NOTICE: 3 phase
models require magnetic motor starters
and external overload
protection.
If in doubt about the
procedure, consult a
licensed electrician.
Ground (Green)
L2
Back of
motor
with
Terminal
Board
230
Volt
Lines
Common
B
Low Spd
A
L1
High Spd
Power Supply for
Optional Timer.
Circuit
Protector
Remote
SPDT
Switch
If using timer, Connect
Timer Motor to Low Speed Only
1168 0794
Minimum switch and timer amp rating must equal Branch Fuse
Rating given in "Recommended Fusing and Wiring Data" table.
Figure 4C – Wiring connection diagram for 2- speed motors.
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)
230/60/1
14(2)
14(2)
12(3)
}
AWG
Wire
Size
(mm2)
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)
230/60/1
14(2)
14(2)
12(3)
230/60/1
14(2)
14(2)
12(3)
230/60/1
14(2)
14(2)
12(3)
230/60/1
14(2)
14(2)
12(3)
}
AWG
Wire
Size
(mm2)
115/230/60/1 14/14(2/2) 10/14(5.5/2) 10/14(5.5/2)
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)
}
MPEA SERIES – SINGLE SPEED
3/4
1
1-1/2
2
2-1/2
2
2-1/2
15/15
20/15
25/15
15
15
15
15
11.0/5.5
13.8/6.9
16.0/8.0
10.1-3.7
11.9-3.5
10.4
11.2
MPFA SERIES – SINGLE SPEED
3/4
1
1-1/2
15/15
20/15
20/15
9.9/5.0
13.4/6.7
15.3/7.6
AWG
Wire
Size
(mm2)
MPRA SERIES – TWO SPEED
1-1/2 – 1/4
15
9.2/2.5
230/60/1
14(2)
14(2)
12(3)
MPEA SERIES – TWO SPEED
2 – 1/3
2-1/2 – 1/2
15
15
10.1/3.7
11.9/3.5
230/60/1
230/60/1
8
14(2)
14(2)
14(2)
12(3)
12(3)
12(3)
}
AWG
Wire
Size
(mm2)
OPERATION
NOTICE: NEVER run pump dry. Running pump dry may damage seals, causing leakage and flooding. Fill pump with water before starting motor.
Before removing trap cover:
1. STOP PUMP before proceeding.
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.
Do not block pump suction. To do so with body may cause severe or
fatal injury. Small children using pool must ALWAYS have close adult
supervision.
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. An automatic internal cutoff
switch protects the motor from heat damage during operation.
Hazardous suction.
Can trap hair or
body parts, causing
severe injury
or death.
Do not block
suction.
TO REMOVE
OVERTIGHT
LID
Priming Pump
Release all pressure from filter, pump, and piping system; see the filter owner’s
manual.
In a flooded suction system (water source higher than pump), pump will prime
itself when suction and discharge valves are opened.
If pump is not in a flooded suction system, unscrew and remove trap cover
(see Figure 5); fill trap and pump with water.
Clean and inspect O-Ring; reinstall on trap cover.
Do not lubricate the trap cover O-Ring. The original equipment O-Ring contains a permanent internal lubricant.
NOTICE: If you replace the O-Ring with a non-internally lubricated O-Ring,
you may need to apply a silicone based lubricant.
Replace trap cover on trap; turn clockwise to tighten cover.
NOTICE: Tighten trap cover by hand only (no wrenches)!
Pump should prime now. Priming time will depend on vertical length of suction lift and horizontal length of suction piping.
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, Pages 12 and 13.
BOARD
Figure 5 – Use a pry bar or board as
shown to remove tight lid. Do not
use a pry bar to tighten lid.
Storage/Winterizing:
NOTICE: Allowing pump to freeze will damage pump and void warranty!
NOTICE: Do not use anti-freeze solutions (except propylene 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.
Drain all water from pump and piping when expecting freezing temperatures
or when storing pump for a long time (see instructions below).
Keep motor dry and covered during storage.
To avoid condensation/corrosion problems, do not cover pump with plastic.
9
For outdoor/unprotected installations:
1. Enclose entire system in a weatherproof enclosure.
2. To avoid condensation/corrosion damage, allow ventilation; do not wrap
system in plastic.
3. Use a 40% propylene glycol/60% water solution to protect pump to -50°F
(-46°C).
Draining Pump
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.
To avoid dangerous or fatal electrical shock hazard, turn OFF power to
motor before draining pump.
2. Remove trap cover and use low pressure air to blow accumulated water
from the piping system. Use a pry bar or board to remove trap covers that
have been overtightened or have taken a set and cannot be removed by
hand. Lugs have been provided on the trap lid to use a lever or pry bar for
loosening (see Figure 6).
3. Cap inlet piping after draining to keep water out of the pipes.
Hazardous voltage.
Can shock, burn,
or cause death.
4. To prevent pump from freezing, remove trap cover and drain the tank body
through the two drain plugs provided.
Disconnect power
before working
on pump or motor.
A. Gravity drain system as far as possible.
B. Protect areas which retain water with non-toxic propylene glycol
antifreeze (“RV” antifreeze).
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!
6. Be sure motor is kept dry and covered.
Startup For Winterized Equipment
1. Remove any temporary weather protection placed around system for shutdown.
TO REMOVE
OVERTIGHT
LID
BOARD
Figure 6 – Use a pry bar or board as
shown to remove tight lid. Do not
use a pry bar to tighten lid.
2. Follow filter manufacturer’s instructions for reactivation of the filter.
3. Inspect all electrical wiring for damage or deterioration over the shutdown
period. Have a qualified serviceman repair wiring as needed.
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.
8. Close all drain valves and replace all drain plugs in piping system.
9. Prime pump according to instructions on Page 9.
10
PUMP SERVICE
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.
2. CLOSE GATE VALVES in suction and discharge pipes.
3. RELEASE ALL PRESSURE from pump and piping system.
To avoid dangerous or fatal electrical shock hazard, turn OFF power to
motor before working on pump or motor.
Aside from lubricating trap cover “O” Ring, no lubrication or regular maintenance is needed beyond reasonable care and periodic cleaning of strainer
basket.
If shaft seal is worn or damaged, repair as follows:
Pump Dissasembly/Removing Old Seal
Disconnect power to pump motor.
Hazardous voltage.
Can shock, burn,
or cause death.
Disconnect power
before working
on pump or motor.
Be sure valves on suction and return piping are closed before starting
work.
Release all pressure by opening all vents before starting work.
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.)
4. Remove seven screws and washers holding diffuser to seal plate. Remove
diffuser.
Mechanical seal
ceramic seat
5. Remove motor canopy. Being careful not to touch capacitor terminals,
loosen capacitor clamp and move capacitor to one side.
6. Hold shaft with 7/16" open-end wrench on motor shaft flats.
7. Unscrew impeller from shaft (turn counterclockwise when facing 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.
8. Remove four screws holding seal plate to motor.
Figure 7
9. Place seal plate face down on flat surface and tap out ceramic seat
(Fig. 7).
10. Remove slinger from motor shaft and inspect for damage or abrasion.
11. Clean seal cavity in seal plate and clean motor shaft.
11
Polished
surface
Pump Reassembly/Installing New Seal
Rubber
surface
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 (Fig. 8).
2. If ceramic seat will not locate properly, remove it, place face up on bench
and reclean cavity. Ceramic seat should now locate.
Figure 8
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 surface or seal
will leak.
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.
5. Remount seal plate on motor. Tighten bolts to 60-80 inch-lbs. (69-92
kg/cm) torque.
6. Apply a small amount of liquid detergent to inside diameter 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.
NOTICE: Be sure not to nick or scratch polished seal face; seal will leak if
face is damaged.
8. Screw impeller onto shaft (clockwise); this will automatically locate seal in
seal plate.
NOTICE: On 2 and 2-1/2 HP models; install impeller gasket and lock
screw (left-hand thread - turn counterclockwise). Torque lock screw to
50-55 inch-lbs. (57.6-63 kg/cm).
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.
TROUBLESHOOTING GUIDE
Read and understand safety and operating instructions in this manual
before doing any work on pump!
Only qualified personnel should electrically test pump motor!
FAILURE TO PUMP; REDUCED CAPACITY OR DISCHARGE PRESSURE
Suction leaks/lost prime:
Hazardous voltage.
Can shock, burn,
or cause death.
Disconnect power
before working
on pump or motor.
1. Pump must be primed; make sure that pump volute and trap are full of
water. See priming instructions, Page 9.
2. Make sure there are no leaks in suction piping.
3. Make sure suction pipe inlet is well below the water level to prevent
pump from sucking air.
4. If suction trap gasket is defective, replace it.
5. Make sure pump is not trying to lift water more than 10'(3m).
6. Make sure suction pipe is at least 2" (51mm) in diameter.
12
Clogged pipe/trap/impeller, worn impeller:
7. Make sure suction trap is not clogged; if it is, clean trap and strainer.
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 12, for reassembly).
9. Impeller and diffuser may be worn. If so, order replacement parts from
Repair Parts List, Pages 14 and 15.
Electrical:
10. Pump may be running too slowly; check voltage at motor terminals and at
meter while pump is running. If low, see wiring instructions or consult
power company. Check for loose connections.
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.
C. Reduce ambient temperature.
D. Tighten any loose connections.
MECHANICAL TROUBLES AND NOISE
1. If suction and discharge piping are not adequately supported, pump assembly will be strained. See “Installation”, Page 4.
2. Do not mount pump on a wooden platform! Securely mount on concrete
platform for quietest performance.
13
REPAIR PARTS LIST
DYNA-GLAS™ & DYNA-MAX™ POOL PUMP
3/4 through 2-1/2 HP Models
Single Speed and Two Speed
1
2 3
4
5
See
Box A
6
7
24
8
8A
8B
12
9
10
23
13
14
22
11
21
20
15A
See
Box A
19
18
17
16
15B
1169 0794
Model No.
HP
Motor (Key No. 1)
Box A
Single Speed 115/230/60/1
MPRA6D-146L
MPRA6E-147L
MPRA6F-148L
MPEA6D-146L
MPEA6E-147L
MPEA6F-148L
MPFA6D-176L
MPFA6E-146L
MPFA6F-147L
3/4
1
1-1/2
3/4
1
1-1/2
3/4
1
1-1/2
A100DLL
A100ELL
A100FLL
AE100DLL
AE100ELL
AE100FLL
A100DLL
A100ELL
A100FLL
2
2
2-1/2
A100GLL
AE100GLL
AE100G5LL
1-1/2
1-1/2
2
2
2-1/2
2-1/2
A100FLL-Y
A100FLL-Y
AE100GLL-Y
AE100GLL-Y
AE100G5LL-Y
AE100G5LL-Y
For quick disconnect pipe connections,
purchase separately:
Pkg. 188 2" Slip 1/2 Union Kit or
Pkg. 189 2" NPT 1/2 Union Kit.
Includes:
U11-200P Union Collar
U9-362 O-Ring
U11-196P 2" Slip adapter or
U11-199P 2" NPT adapter.
230/60/1
MPRA6G-155L
MPEA6G-155L
MPEAA6G-168L
Two Speed 230/60/1
MPRA6YF-174L
MPRA6YF-174LS
MPEA6YG-175L
MPEA6YG-175LS
MPEAA6YG-168L
MPEAA6YG-168LS
14
REPAIR PARTS LIST
DYNA-GLAS™ & DYNA-MAX™ POOL PUMP
3/4 through 2-1/2 HP Models Single Speed and Two Speed
Key
No.
2
3
4
4
5
6
7
8
8
8
8A
8B
9
10
11
12
13
14
15A
15B
16
•
17
17
18
19
20
21
22
23
•
24
•
•
•
•
•
Part
Description
Screw #10-32x1/2"
Bonding Lug
Slinger (MPFA, MPRA Series)
Slinger (MPEA Series)
Seal Plate
Seal Plate Cord Ring
Shaft Seal
Impeller*
Impeller (MPRA6Y, MPEA6Y
and MPEAA6Y only)
Impeller (MPFA6D, MPFA6E, MPFA6F only)
Gasket
Impeller Lock Screw
Diffuser
Diffuser “O” Ring
Tank and Trap Body (Only)
Trap Cover
Trap Cover “O” Ring
Trap Basket
Drain Plug
Mounting Screw 5/16-14x5/8"
Base - Plastic
Base - Steel (LS Suffix)
Motor Pad - for Plastic Base
Motor Pad - for Steel Base (LS Suffix)
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)
Lock Washer 3/8” (LS Suffix)
Cap Screws 3/8-16x1" Hex. *
Nameplate
Tag, “CAUTION This pump equipped with
mechanical shaft seal…”
Voltage Sticker
Decal “Overtight trap lid…”
Tag, “WARNING/CAUTION/Instructions...”
Qty.
MPFA6D-176L
MPEA6D-146L
MPRA6D-146L
MPRA6D-146LC
3/4 HP
MPEA6E-147L
MPFA6E-146L
MPRA6E-147L
MPRA6E-147LC
1 HP
MPEA6F-148L
MPFA6F-147L
MPEA6G-155L
MPRA6F-148L
MPRA6G-155L
MPRA6F-148LC
MPR6G-155LC MPEAA6G-168L
MPRA6YF-174L MPEA6YG-175L MPEAA6YG-168L
MPRA6YF-174LS MPEA6YG-175LS MPEAA6YG-168LS
1-1/2 HP
2 HP
2-1/2 HP
1
1
1
1
1
1
1
1
U30-692SS
U17-568
17351-0009
C69-24
C3-184P
U9-373
37400-0027
C105-236P
U30-692SS
U17-568
17351-0009
C69-24
C3-184P
U9-373
37400-0027
C105-236PB
U30-692SS
U17-568
17351-0009
C69-24
C3-184P
U9-373
37400-0027
C105-236PC
U30-692SS
U17-568
17351-0009
C69-24
C3-184P
U9-373
37400-0027
C105-236PDA
U30-692SS
U17-568
17351-0009
C69-24
C3-184P
U9-373
37400-0027
C105-236PEA
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
7
7
6
6
6
2
2
4
1
1
–
C105-236PJ
–
–
C1-270PB
U9-374
C76-58P
C3-185P
U9-375
C8-58P
U178-920P
U30-919SS
C4-77P
–
C35-45
–
U30-542SS
U43-21SS
U43-62SS
U43-12SS
U36-38SS
–
–
U30-74SS
32155-4071
61002-0002
–
C105-236P
–
–
C1-270PC
U9-374
C76-58P
C3-185P
U9-375
C8-58P
U178-920P
U30-919SS
C4-77P
–
C35-45
–
U30-542SS
U43-21SS
U43-62SS
U43-12SS
U36-38SS
–
–
U30-74SS
32155-4071
61002-0002
C105-236PF
C105-236PB
–
–
C1-270P
U9-374
C76-58P
C3-185P
U9-375
C8-58P
U178-920P
U30-919SS
C4-77P
17303-0113
C35-45
C35-5
U30-542SS
U43-21SS
U43-62SS
U43-12SS
U36-38SS
U30-75SS
U43-12SS
U30-74SS
32155-4071
61002-0002
C105-236PGAB
–
33455-1047
37337-6080
C1-270P
U9-374
C76-58P
C3-185P
U9-375
C8-58P
U178-920P
U30-919SS
C4-77P
17303-0113
C35-45
C35-5
U30-542SS
U43-21SS
U43-62SS
U43-12SS
U36-38SS
U30-75SS
U43-12SS
U30-74SS
32155-4071
61002-0002
C105-236PEA
–
33455-1047
37337-6080
C1-270P
U9-374
C76-58P
C3-185P
U9-375
C8-58P
U178-920P
U30-919SS
C4-77P
17303-0113
C35-45
C35-5
U30-542SS
U43-21SS
U43-62SS
U43-12SS
U36-38SS
U30-75SS
U43-12SS
U30-74SS
32155-4071
61002-0002
1
1
1
U27-153
U27-644
C63-12
U27-153
U27-644
C63-12
U27-153
U27-644
C63-12
U27-68
U27-644
C63-12
U27-68
U27-644
C63-12
• Not illustrated.
* Models with “LS” suffix use 2 only.
15
STA-RITE LIMITED WARRANTY
Pumps, filters, skimmers, underwater lights (except bulbs),
accessories and fittings manufactured by Sta-Rite are warranted to be free of defects in material and workmanship for
one (1) year from date of installation.
Year from date
Product specific warranties:
of installation
HRPB, DEPB, System 3, System 2 and Posi-Clear
Tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 years
Internal filter components and valves . . . . . . . . . 1 year
Max-E-Therm – Pool/Spa Heaters . . . . . . . . . . . . . 2 years
Heater Enclosure only (Upper RH & LH;
lower enclosure; and control board enclosure)… 10 years
Automatic Pool Cleaners including Hose . . . . . . . 2 years
Cristal-Flo filters – Tanks . . . . . . . . . . . .10 years pro-rated*
Valve and internal components. . . . . . . . . . . . . . . 1 year
Posi-Flo II – Tanks . . . . . . . . . . . . . . . . . . . . . . . . .10 years
Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 year
PRC Cartridge –
Filter Tanks . . . . . . . . . .5 years pro-rated (1st 2 years full)
Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 year
System 2 Above Ground Systems – Tanks . . . . . . .10 years
Pumps / Platform and Internals . . . . . . . . . . . . . . . 1 year
Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 year
When equipped with A.O. Smith
2-compartment motors (Does not include
pumps sold as part of a systems package) . . . . . . 2 years
Traps / In-Line Strainers . . . . . . . . . . . . . . . . . . . . . 1 year
Vertical Commercial Filter – Tanks . . . . . . . . . . . .10 years
Internals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 year
Horizontal Commercial Filter
Tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 years
(Years 6-9, Prorated declining 20%/year, Yr. 10 - 10%)
Internals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 year
▲
* Full warranty coverage is in effect for one year after installation. The pro-rated warranty covers the tank only during
the 2nd through 10th year after installation. The amount covered decreases by 10% each year. (ie., 2nd year 90% covered,
3rd year 80% covered, etc.).
The foregoing warranties relate to the original consumer purchaser (“Purchaser”) only. Sta-Rite shall have the option to repair or replace the defective product, at its sole discretion. Purchasers must pay all labor and shipping charges necessary to replace the product covered by this warranty.
Requests for warranty service must be made through the installing dealer. This warranty shall not apply to any product
that has been subject to negligence, misapplication, improper
installation or maintenance, or other circumstances which are
not in Sta-Rite’s direct control.
This warranty sets forth Sta-Rite’s sole obligation and
Purchaser’s exclusive remedy for defective products.
STA-RITE SHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL,
INCIDENTAL OR CONTINGENT DAMAGES WHATSOEVER.
THE FOREGOING WARRANTIES ARE EXCLUSIVE AND IN
LIEU OF ALL OTHER EXPRESS WARRANTIES. IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, SHALL NOT EXTEND BEYOND THE
DURATION OF THE APPLICABLE EXPRESS WARRANTIES
PROVIDED HEREIN.
Some states do not allow the exclusion or limitation of incidental or consequential damages or limitations on how long
an implied warranty lasts, so the above limitations or exclusion may not apply to you. This warranty gives you specific
legal rights and you may also have other rights which vary
from state to state.
Supersedes all previous publications.
Sta-Rite Industries, Inc.,
293 Wright St., Delavan, WI 53115
Retain Warranty Certificate (upper portion) in a safe and convenient location for your records.
DETACH HERE: Fill out bottom portion completely and mail within 10 days of purchase/installation to:
▼
Sta-Rite, Attn: Warranty Dept., 293 Wright St., Delavan, WI 53115
Warranty Registration Card
Name
Years pool has been in service
Address
Purchased from:
Company name
City
State
Zip
■ less than 1
■ 1-3
■ 3-5
■ 5-10
Address
Purchase Date
City
State
Zip
Product Purchased
■ New installation
Type of Pool
Size of Pool
■ Inground
Please send me more information on these
other products from Sta-Rite.
■ Replacement
■ Vinyl
■ Fiberglass
■ Gunite
■ Pumps ■ Filters ■ Automatic Pool Cleaners
■ Maintenance Equipment ■ Test Strips
■ Heaters
S4877PS (Rev. 2/4/03)