Control Products 1750 RPM Installation Manual

DYNA-WAVE
®
CENTRIFUGAL PUMP
WITH INTEGRAL TRAP
O W N E R’ S M A N U A L
INSTALLATION, OPERATION & PARTS
Pentair Water Pool and Spa, Inc.
© 2009 Pentair Water Pool and Spa, Inc. All rights reserved.
Dyna-Wave®, Sta-Rite® and Pentair Water Pool and Spa® are registered trademarks of Pentair Water Pool and Spa, Inc. and/or its affiliated companies in the United States and/or other countries. Plasto-Joint Stik® is a registered trademark of La-Co Industries, Inc. and Teflon® is a registered trademark of E.I. Du Pont De Nemours and Company Corporation. Unless noted, names and brands of others that may be used in this document are not used to indicate an affiliation or endorsement between the proprietors of these names and brands and Pentair Water Pool and Spa, Inc. Those names and brands may be the trademarks or registered trademarks of those parties or others.
S752 Rev B (10/07/09)
This manual should be given to the end user of this pump; its use will reduce service calls and chance of injury and will lengthen pump life.
2
‘MPRA’, SERIES PUMP 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’ Series Self-priming Centrifugal pump:
• Is designed for use with water features or as a centrifugal pump.
• Is an excellent performer; durable, reliable.
Table of Contents
Safety Instructions ......................................................2
Installation ...................................................................3
Pool Pump Suction Requirements ............................4-5
Electrical...................................................................5-6
Operation.....................................................................7
Storage/Winterizing ..................................................7-8
Pump Service .........................................................8-10
Repair Parts List ........................................................10
Troubleshooting Guide...............................................11
Warranty ....................................................................12
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 water feature
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.
• Water pressure for test must be less than 25 PSI
(7.5 kg/cm
2
).
• Water Temperature for test must be less than 100° F.
(38° 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.
NOTICE: These parameters apply to Sta-Rite® equipment only. For non-Sta-Rite equipment, consult manufacturer.
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.
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
3
NOTICE: These parameters apply to Sta-Rite equipment only. For non-Sta-Rite equipment, consult manufacturer.
INSTALLATION
(See Figure 2)
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 Stik® 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 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 beyond these stops.
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.
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. See Page 10 for Union Kits.
Figure 1 – Strainer basket cover alignment.
Figure 2.
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Arrows
Ta b
Discharge Por t
Discharge Port to Filter or Pool
Strainer Basket
Cover
Bonding Lug
Pump may be bolted to level
foundation or mounting bracket.
Suction
Port
from
Pool or
Vacuum
Filters
5138 0905
4
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.
PUMP SUCTION REQUIREMENTS
Pump suction is hazardous and can trap and drown
or disembowel bathers. Do not use or operate swimming pools, spas, hot tubs or water features 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, hot tubs and water features.
Entrapment Protection
The pump suction system must provide protection against the hazard of suction entrapment or hair entrapment/entanglement.
Suction Outlet Covers
All suction outlet covers must be maintained. They must be replaced if cracked, broken, or missing.
See Page 5 for outlet cover certification requirements.
All suction outlets must have correctly installed, screw­fastened covers in place.
Suction Outlets Per Pump (Figure 2)
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). 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.
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.
Hazardous suction. Can trap hair or body parts, causing severe injury or death.
Do not block suction.
Figure 2 – Recommended pump suction layout.
IAPMO Certified
Anti-entrapment
Cover or Suction Fitting,
screw-fastened to
Main Drain Sump
Suction Outlet
(Main Drain)
Valves OK between pump and Tee
At Least
3 Feet
No valves between Tee and Main Drains
IAPMO Certified
Anti-entrapment
Cover or Suction Fitting,
screw-fastened to
Main Drain Sump
Suction Outlet
(Main Drain)
Pump
2762 0197
5
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.
ELECTRICAL
Ground motor before connecting to electrical
power supply. Failure to ground motor can cause severe or fatal electrical shock hazard.
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.
Voltage
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.
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 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 Figure 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.
Wiring
NOTICE: 3 phase models require magnetic motor starters and external overload protection. If in doubt about the procedure, consult a licensed electrician.
Pump must be permanently connected to circuit. Table I, Page 6, 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.
Figure 3 – Typical ground screw and bonding lug locations.
Bonding Lug
Green Ground Screw
A
A
230V
115V
L2
L2
L1
L1
6
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.
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.
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. Re­install the motor end cover and all other wiring covers before turning on the power.
1. Turn off power.
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.
To Wire a Dual-Voltage Motor
Dual voltage motors have a plug to change from 230 volts (factory setting) to 115 volts.
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.
2. If you have 115 volt supply, pull the plug straight up and place it on the two brass prongs as shown.
NOTE: Arrow is highlighted for clarity.
Figure 4B Voltage Change Plug Set for 115 Volts.
Figure 4A -Voltage Change Plug Set for 230 Volts.
TABLE I - RECOMMENDED FUSING AND WIRING DATA
Serv. to Motor - Dist. in Ft. (M)
AWG Wire Size (mm2)
Motor Branch Fuse Max Load Voltage/ 0-100' 101-200' 201-300'
Model HP Rating Amps* Amps Hz/Phase (0-30) (30-60) (60-90)
MPRA6B-202L
1/3 15/15 4.2/2.1 115/230/60/1 14/14(2/2) 14/14(2/2) 12/14(3/2)
1750 RPM
* Time delay fuses are recommended instead of standard fuses in any motor circuit.
7
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.
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; fill trap and pump with water.
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 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 handle ring by hand only
(no wrenches)! See Figure 1, Page 3. 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, Page 11.
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. 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.
Hazardous suction. Can trap hair or body parts, causing severe injury or death.
Do not block suction.
8
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.
4. To prevent pump from freezing, 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).
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.
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 7.
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 7) before starting.
Before
removing trap cover:
1. STOP PUMP before proceeding.
2. CLOSE GATE VALVES insuction 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:
Hazardous voltage. Can shock, burn, or cause death.
Disconnect power before working on pump or motor.
Hazardous voltage. Can shock, burn, or cause death.
Disconnect power before working on pump or motor.
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