Astral Pool A142C User manual

SELF-PRIMING COMMERCIAL
CENTRIFUGAL PUMPS WITH TRAP
FOR SWIMMING POOL USE
O W N E R’ S M A N U A L
INSTALLATION, OPERATION & PARTS
Astral Products Inc.
8525 Mallory Rd., Jacksonville, FL 32220
Printed in U.S.A. S420 (Rev. 6/7/02)
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.
H.P. Phase 230/460V/60 Hz.
7.5 1 A142C
7.5 3 A142C3
10 1 A143C
10 3 A143C3
15 3 A144C
20 3 A145C3

2
SELF-PRIMING COMMERCIAL
CENTRIFUGAL PUMP and TRAP
To avoid unneeded service calls, prevent possible injuries, and get the most
out of your pump, READ THIS MANUAL CAREFULLY!
The Astral Self-priming Commercial Centrifugal pump:
• Is designed for use with commercial swimming pools or as a centrifugal
pump.
• Is an excellent performer; durable, reliable.
Table of Contents
Safety Instructions ........................................................................................3
Uncrating and Inspection..............................................................................6
Installation.................................................................................................6-8
Electrical.......................................................................................................9
Operation ..............................................................................................10-11
Service .................................................................................................11-12
Troubleshooting Guide ...............................................................................13
Repair Parts List .....................................................................................14-15
Warranty.....................................................................................................16

3
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 equip-
ment. 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. Install pump with at least 2 hydraulically balanced main drains equipped
with correctly installed, screw-fastened, anti-entrapment certified covers.
See Page 4.
4. 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 trap lid to 25 ft. lbs. (3.5 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 100oF. (38oC).
•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.
IMPORTANT
SAFETY
INSTRUCTIONS
Always follow basic safety pre-
cautions with this equipment, in-
cluding 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 con-
structed 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 disassem-
bled for storage and reassembled
to its original integrity.
SAVE THESE
INSTRUCTIONS

4
Model No. Volt/Hz/Ph HP A B CP D E F R S T U
A142C 230/60/1 7.5 10.62 7.00 39.44 5.25 4.25 5.50 1.00 30.00 8.50 .44
A142C3 230-460/60/3 7.5 9.00 6.75 40.31 4.50 3.75 5.50 1.75 29.13 7.50 .44
A143C 230/60/1 10 10.35 8.26 42.69 5.25 4.25 7.0 1.00 30.00 8.5 .44
A143C3 230-460/60/3 10 10.62 7.00 41.00 5.25 4.25 5.50 1.00 30.00 8.50 .44
A144C3 230/460/60/3 15 10.62 8.50 42.50 5.25 4.25 7.00 1.00 30.00 8.50 .44
A145C3 230/460/60/3 20 12.50 10.80 46.75 6.25 5.00 8.2 0 31.62 10.00 .54
Table I – OUTLINE DIMENSIONS – In Inches
(Includes Package A184S)

5
FLOW
Straight run, as short as possible
but at least 6 times pipe diameter
(to stabilize flow) from nearest
fitting to strainer.
Discharge pipe diameter
4" or larger. The distance
to the first elbow must be
at least 5 times the pipe
diameter.
4", 125 Lb. ANSI
Flange Connection
6", 125 Lb. ANSI
Flange Connection
Minimum suction
pipe diameter 6".
Long-Radius
elbows
preferred.
From pool suction
plumbing.
Installation Diagram
Flooded Suction Installation
To
Filter
Not to Scale
Isolation valves full
open when pumping.
Support pipe
Support pipe
FLOW
Straight run, as short as possible but at least
6 times pipe diameter (to stabilize flow) from
nearest fitting to strainer. Slope pipe
upward toward pump.
Discharge pipe diameter
4" or larger. The distance
to the first elbow must be
at least 5 times the pipe
diameter.
4", 125 Lb. ANSI
Flange Connection
6", 125 Lb. ANSI
Flange Connection
Minimum suction
pipe diameter 6".
Long-Radius
elbows
preferred.
From pool suction
plumbing. Maximum
suction lift 10'.
Installation Diagram
Suction Lift Installation
To
Filter
Not to Scale Support pipe
Support pipe

6
UNCRATING AND INSPECTION
Handle with care.
Check items received against packing list to be sure that all equipment has
been received.
Inspect for shipping damage. If found, file claim with carrier immediately.
Cleanup
Clean up all trash and other materials which will interfere with installation
from foundation and surrounding area.
For easy assembly, make sure all threaded joints and mating surfaces are
clean. If necessary, clean with wire brush and solvent.
To reduce danger of explosion and fire, do not use gasoline
as a cleaning solvent. Do not allow debris, trash, or other foreign material to
collect around pump motor.
Remove all foreign material (packing, etc.) from pump and strainer.
INSTALLATION
Only qualified, licensed personnel should install pump and wiring.
Foundation
Foundation must:
Be Solid - Level - Rigid - Vibration free.
Be provided with necessary hold-down bolts, washers, and shims.
Allow pump inlet to be as close to water level as possible.
Use short, direct suction pipe (to reduce friction losses).
Maximum suction lift is 10’ (3 m).
Allow for isolation 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.
Piping – General
System piping must be at least equal to size of pump connections.
To prevent strain on the pump casing and foundation, pipe and fittings must
be aligned to pump without forcing.
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.
Piping – Suction
Risk of severe injury or drowning from hair or body
entrapment. To reduce risk of entrapment against pump suc-
tion opening, connect pump to multiple drains and skimmers
of non-entrapment design. See “Pool Pump Suction
Requirements,” Pages 7 and 8.
NOTICE: If pump suction becomes clogged, pump will cavitate, damaging
pump internal parts. Keep suction pipe clear of debris, dirt, etc.
NOTICE: To prevent flooding when removing pump for service, all flooded
suction systems must have valves in suction and discharge pipes.
Use at least 6” (152 mm) pipe. Never use a suction pipe smaller than the
pump suction connection.
Hazardous suction.
Can trap hair or
body parts, causing
severe injury
or death.
Do not block
suction.

7
Use larger pipe as required to keep water velocity below 7 feet per second or
local construction code limits, whichever is lower.
Suction pipe must rise continuously from source to pump. To avoid airlock-
ing, do not allow high spots in pipe.
When using reducer to connect to pump flange, use an eccentric reducer with
the straight side on top.
Piping – Discharge
Maximum water velocity should be 7 feet per second in metal pipe or 10 feet
per second in plastic pipe.
To minimize friction losses, make piping one size larger than pump openings.
Fittings restrict flow; for best performance use fewest possible fittings.
Avoid fittings which could cause an air trap.
Pool fittings must conform to International Association of Plumbing and
Mechanical Officials (IAPMO) standards.
POOL PUMP SUCTION
REQUIREMENTS
Pump suction is hazardous and can trap and drown or disem-
bowel bathers. Do not use or allow anyone else to use a pool, spa, or hot tub
unless it has at least two suction outlets to each pump suction line (see
“Outlets Per Pump,” Page 8). 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.
At Least
3 Feet
Suction Outlet
(Main Drain)
Suction Outlet
(Main Drain)
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
Pump
Valves OK between
pump and Tee
No valves between
Tee and Main Drains
2762 0197
Figure 1 – Recommended pump suction layout.

8
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.
Outlets Per Pump
Provide at least two hydraulically balanced main drains, with covers (see
Page 6), for each swimming pool pump suction line. The centers of the main
drains (suction outlets) 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 1). However, if
two main drains run into a single suction line, the single suction line may be
equipped with a valve which will shutoff both main drains from the pump
(see Figure 1).
More than one pump can be connected to a single suction line as long as the
requirements above are met.
Water Velocity and Flow Rates
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 sec-
ond or less even if one main drain (suction fitting) 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.
The flow through any main drain suction fitting must not exceed the flow rat-
ing of that fitting. If the flow through the main drain(s) is found to exceed the
manufacturer’s specified rating(s), sufficient additional suction sources must
be added to lower the flow through all main drains to their rated capacity or
below.
Strainer
Maximum hydrostatic test pressure is 40 PSI (275 kPa) water
pressure. To avoid explosion hazard, DO NOT test strainer
with air pressure. Air pressure in strainer can blow cover off of
strainer body, which can cause severe or fatal injury. Open fil-
ter air release valve and release ALL air (wait for a steady stream of water from
vent) before hydrostatically testing strainer.
To avoid breaking pump or putting unnecessary strains on pump or strainer
body, support pipe independently of pump/strainer.
Center the strainer cover when installing it (especially when pressure testing).
When installing cover, clean O-Ring groove in strainer body, and lubricate
with petroleum jelly as follows:
A. O-Ring;
B. Sealing surfaces of strainer cover and body;
C. Threads and faces of wing nuts.
This will prevent corrosion, improve seal, and ease maintenance.
If strainer is installed backwards, debris will collect in suction pipe instead of
in strainer basket. Install strainer with cast-on flow arrows pointing in direc-
tion of water flow.
Basket will only go into strainer one way; don’t force it.

9
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.
Supply voltage must be within ±10% of nameplate voltage. Incorrect
voltage can cause fire or seriously damage motor and voids warranty.
If in doubt consult a licensed electrician.
NOTICE: Due to wide variation in electrical equipment, power supply, and
installation requirements, this manual does not make specific recommenda-
tions concerning auxiliary equipment or fusing/wiring.
All electrical wiring, grounding, and bonding must be done by a licensed
electrical contractor who is familiar with commercial swimming pool installa-
tions and electrical codes and requirements. Wire sizing, wire type, branch
circuit fuse protection, motor starter, control equipment, and related items
must meet National Electrical Code and local code requirements.
Motors are supplied by serveral manufacturers and nameplate date (service
factor, maximum amperage, etc.) will cary. Consult control manufacturer and
motor nameplate on your pump to correctly choose and size motor starter and
control equipment for your particular installation. Specific electrical questions
or problems should be addressed to the manufacturer of the electrical compe-
nent in question. All motor fusing, and auxiliary equipment must meet
National Electrical Code and local code requirements.
Voltage/Phase
Voltage at motor must be not more than 10% above or below motor name-
plate rated voltage or motor may overheat, causing overload tripping and re-
duced 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.
Do not try to connect 3-phase motors to single phase power supply or single
phase motors to 3-phase power supply.
Grounding/Bonding
Install, ground, bond and wire motor according to local and National
Electrical Code requirements.
Permanently ground motor. Use green grounding terminal provided under
motor canopy or access plate; use size and type wire required by code.
Connect motor ground terminal to electrical service ground.
Bond motor to pool structure according to local or National Electrical Code.
Use a solid copper conductor, size No. 8 (6.0 mm2) AWG or larger.
Wiring
Pump must be permanently connected to circuit; be sure no other appliances
are on the same circuit.
Make sure that motor nameplate connection diagram includes connection di-
agram for available voltage. If not, consult power company or a licensed elec-
trician.
Check rotation before making final connection to power supply. Pump should
rotate counterclockwise when viewed through pump suction port.
To change rotation: Three phase motors: Reverse any two leads to motor.
Single phase motors: Follow motor manufacturer’s instructions to reverse.
Hazardous voltage.
Can shock, burn,
or cause death.
Ground pump before
connecting to
power supply.

10
OPERATION
Hazardous suction. Can trap hair or body parts, causing severe
injury or death by drowning. Do not block pump or strainer
suction with body. Small children using pool must ALWAYS
have close adult supervision!
Do not run pump against closed discharge valve. To do so can boil
water in pump body, and can cause severe burns to people working on pump.
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 col-
lect 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 protets the motor from heat damage during operation.
NEVER run pump dry. Running pump dry may damage seals,
causing leakage and flooding. Fill pump with water before starting motor.
Before removing strainer cover:
1. STOP PUMP before proceeding.
2. CLOSE ISOLATION VALVES in suction and discharge pipes.
3. RELEASE ALL PRESSURE from pump and piping system.
After pressure test, release all pressure before removing strainer cover!
NOTICE: Provide adequate ventilation. Ambient air temperature should be
104°F (40°C) or less, but above freezing at all times.
NOTICE: To prevent corrosion damage, store pool chemicals in another room
away from pump.
Priming Pump
Hazardous Pressure! Before removing strainer cover, remove
vent plug in cover and release all pressure from system.
Open suction/discharge valves. In a flooded suction system, pump will prime.
If pump is not in a flooded suction system, remove strainer cover; fill strainer
and pump with water.
If necessary, use a wrench on flats when removing wing nuts.
When installing cover, clean O-Ring sealing surface on strainer body, and
lubricate with petroleum jelly as follows:
A. O-Ring and Sealing surfaces of strainer cover and body;
B. Threads and faces of wing nuts.
This will prevent corrosion, improve seal, and ease maintenance.
Center strainer cover when installing it (especially when pressure testing).
Hand tighten wing nuts. When tightening, alternate back and forth between
nuts to compress O-Ring evenly.
Maximum wing nut torque is 25 ft.-lbs. (3.5 kg.-m).
Start pump; it should prime now. Priming time will depend on vertical length
of suction lift (10'/3m maximum) and horizontal length of suction pipe.
Priming for the A142C through A145C3 series pumps has been tested to 10 ft.
elevation above water level. Priming time using 6” diameter suction pipe is
approximately 9 minutes, at less than 1,000 ft. above sea level with baromet-
ric reading at 30” Hg. Priming times will vary with atmospheric pressure, ele-
vation above sea level, and pipe diameter.
Hazardous
suction.

11
If pump does not prime, make sure that all valves are open, suction pipe end
is under water and that there are no leaks in suction pipe. Fill strainer to bot-
tom of inlet port. Make sure that there are no vacuum leaks around drain
plugs, gaskets, and O-Rings. See Troubleshooting Guide, Page 13.
NOTICE: To avoid corrosion damage to pump and strainer, do not add chemi-
cals to system anywhere on suction side of pump (including into skimmers).
Do not pour chemicals into strainer. Follow chemical manufacturer’s instruc-
tions when mixing or adding chemicals to system.
COMMERCIAL POOL PUMP
DISASSEMBLY/ASSEMBLY
1. Disconnect all power to pump.
2. Close stop valves to cut pump off from system.
3. Drain pump and trap; be sure to vent pump.
4. Make sure that motor is solidly supported so that it does not drop when un-
bolted.
5. Unbolt bracket from volute; slide bracket, impeller and motor out as a unit.
6. Remove impeller screw, lock washer, impeller retaining washer.
7. With a wheel puller, pull impeller and key.
8. Remove shaft seal retaining ring.
9. Unbolt bracket from motor and slide bracket off shaft, brining seal with it.
10. Turn bracket face down; tap out stationary half of seal.
11. Inspect slinger, impeller skirt (outside impeller eye) and wear ring for dam-
age, pitting or wear; replace it if necessary.
12. Remove old gaskets and clean all gasket surfaces.
Fire and explosion hazard. DO NOT use gasoline as a
cleaning solvent.
13. Press in new stationary seal half. If necessary, protect seal surface with a
cardboard washer and tap into place using a piece of plastic pipe for a
press. DO NOT scratch, nick or mar seal face.
14. Install bracket on motor; be careful not to nick seal on shaft shoulder.
15. Slide rotating half of new seal onto shaft sleeve, polished face first. Install
retaining ring.
NOTICE: Do not lubricate shaft gaskets as this may interfere with sealing.
16. Install new impeller gasket on shaft.
17. Install impeller on shaft. Pull impeller into place with impeller screw and
retaining washer.
18. Remove impeller screw and washer; clean up screw with wire brush and
prime with Loctite Primer T.
19. Install gasket, retaining washer, sealing lock washer, and impeller screw in
that order. Use Loctite #271 to secure impeller screw. Tighten as shown:
3/8” impeller screw to 200 inch-lbs. (2.3 kg-m) torque;
1/2” impeller screw to 450 inch-lbs. (5.2 kg-m) torque.

12
20. Install new volute gasket and slide motor/impeller/bracket assembly into
place; bolt up to volute.
Tighten cap screws and nuts to 450 inch-lbs. (5.2 kg-m) torque.
21. Pumps below water level: Close drains; open system valves to fill pump.
Pumps above water level: Fill strainer and prime pump. Open system
valve if they were closed at disassembly.
22. When pump is full, close vent.
23. Reconnect power to pump and system is ready for operation.
MAINTENANCE - Strainer
Before removing strainer cover, loosen or remove 1/4” NPT
vent plug in cover and release all
pressure.
NOTICE: Do not allow strainer to freeze.
If system will be shut down for one day or more, drain strainer and system to
prevent corrosion.
Remove cover to allow interior to dry out when storing for the season. When
interior is dry, replace cover.
Remove drain plug when storing for season. Leave plug out until system is
restarted the following season.
To remove strainer cover, unscrew two wing nuts. If necessary, use a wrench
on flats when removing wing nuts.
NOTICE: A clogged basket will cause cavitation, which will damage strainer
basket, impeller, and pump. Clean weekly or each time you vacuum pool,
whichever comes first.
NOTICE: Basket is a close fit in body of strainer. When cleaning basket, do
not deform.
Hose basket out well.
DO NOT hammer on basket or otherwise mistreat it.
When installing cover, clean O-Ring groove in strainer body.
To prevent corrosion, improve seal, and ease maintenance, lubricate O-Ring,
sealing surfaces of strainer cover and body, and threads and faces of wing
nuts with petroleum jelly.
Center strainer cover when installing it (especially when pressure testing).
Hand tighten wing nuts. When tightening, alternate back and forth between
nuts to compress O-Ring evenly.
Maximum wing nut torque is 25 ft.-lbs. (3.5 kg-m).
If possible, protect from weather at all times.
For storage of out door installation:
1. Drain system.
2. Dry as much as possible.
3. Lubricate with petroleum jelly.
4. Reassemble.
5. Leave drain plug out during storage.

13
CAUSE CORRECTIVE ACTION
_________________________________________________________________________________________________________________________________
I. ELECTRICAL
_________________________________________________________________________________________________________________________________
A. NO VOLTAGE IN POWER SYSTEM Check phase-to-phase on line side of starter contactor.
Check circuit breaker or fuses.
_________________________________________________________________________________________________________________________________
B. NO VOLTAGE ON ONE PHASE Check phase voltage on line side of starter contactor. Isolate open
(THREE PHASE UNITS) circuit (circuit breaker, fuse, broken connections, etc.)
_________________________________________________________________________________________________________________________________
C. LOW VOLTAGE AT MOTOR Running voltage across each leg of motor must be ±10% of nominal
voltage shown on nameplate.
_________________________________________________________________________________________________________________________________
D. MOTOR LEADS IMPROPERLY GROUPED Refer to lead grouping diagram on motor nameplate.
FOR VOLTAGE
_________________________________________________________________________________________________________________________________
E. CONTROL FAILURE Check control device, starter contactor, H-O-A selector switch, etc.,
for malfunction.
_________________________________________________________________________________________________________________________________
F. THERMAL OVERLOAD SWITCH OPEN Check for drag or other overload.
_________________________________________________________________________________________________________________________________
G. INSULATION FAILURE Check motor or windings to ground with megohmmeter.
_________________________________________________________________________________________________________________________________
H. OPEN WINDINGS Check leg-to-leg with ohmmeter.
_________________________________________________________________________________________________________________________________
I. FREQUENCY VARIATION Check frequency of power system. Must be less than 5% variation from
motor nameplate rating.
_________________________________________________________________________________________________________________________________
J. WRONG DIRECTION OF ROTATION Reverse rotation of three phase motor by interchanging any two leads.
See Manufacturer's Instructions for reversing single phase motor.
_________________________________________________________________________________________________________________________________
2. MECHANICAL
_________________________________________________________________________________________________________________________________
A. FLOW THROUGH PUMP COMPLETELY OR Locate and remove obstruction. Refer to Repair Instructions
PARTIALLY OBSTRUCTED for disassembly.
_________________________________________________________________________________________________________________________________
B. PUMP NOT PRIMED Reprime. Inspect suction system for air leaks.
_________________________________________________________________________________________________________________________________
C. INTERNAL LEAKAGE Check impeller for wear of controlled clearances. (See Repair Instructions.)
_________________________________________________________________________________________________________________________________
D. LOOSE PARTS Inspect, repair.
_________________________________________________________________________________________________________________________________
3. SYSTEM
_________________________________________________________________________________________________________________________________
A. PRESSURE REQUIRED BY SYSTEM AT DESIGN Compare pump pressure and flow rate against pump characteristic curve.
FLOW RATE EXCEEDS PRESSURE RATING OF Check for closed or partially closed valve in discharge piping system.
PUMP Reduce system pressure requirement. Increase pressure capability of pump.
_________________________________________________________________________________________________________________________________
B. OBSTRUCTION IN SUCTION PIPING Locate and remove obstruction.
_________________________________________________________________________________________________________________________________
C. PRESSURE RATING OF PUMP EXCEEDS Compare pump pressure and flow rate against pump characteristic curve.
PRESSURE REQUIREMENT OF SYSTEM AT Inspect discharge piping system for breaks, leaks, open by-pass valves, etc.
DESIGN FLOW RATE If necessary, reduce flow rate by partially closing discharge valve.
_________________________________________________________________________________________________________________________________
D. SUCTION LIFT EXCEEDS 10' DESIGN Locate pump closer (vertically) to water source.
MAXIMUM.
PROBABLE CAUSE
GROUP 1 GROUP 2 GROUP 3
SYMPTOM ELECTRICAL MECHANICAL SYSTEM
ABCDE FGH I J ABCDABCD
PUMP RUNS, BUT NO
WATER DELIVERED •• •• •
NOT ENOUGH WATER DELIVERED •• ••••••
NOT ENOUGH PRESSURE •• ••••••
EXCESSIVE VIBRATION •• • • • •
ABNORMAL NOISE ••• • ••
PUMP STOPS ••••••••
OVERHEATING ••• •• •• •
TROUBLE SHOOTING

14
Model Number
7.5HP 10HP 15HP 20HP
Key Part A142C A143C
No. Description Qty A142C3 A143C3 A144C3 A145C3
1Motor, 230 Volt 1 Phase 1 S22351 62500-0101 — —
1Motor, 230/460 Volt 3 Phase 1 S22353 S22356 S22357 S28574
2Lockwasher 1/2” 4 U43-13SS U43-13SS U43-13SS U43-13SS
2Lockwasher 3/8” ** 4 U43-12SS — — —
3A Capscrew 1/2-13x1” Long* 4 S23619 S23619 S23619 S23619
3B Capscrew 3/8-16x1” Long ** 5 S23566 — — —
4Bracket (1 Phase) 1 L05328 — — —
4Bracket (3 Phase) 1 L05329 L05328 L05328 L05779
5Pipe Plug 1/4” NPT 1 U78-57D U78-57D U78-57D U78-57D
6Mechanical Shaft Seal 1 S32014 S32014 S32014 S32015
7Retaining Ring 1 S11207 S11207 S11207 S16767
8Shaft Sleeve 1 37447-0001 37447-0001 37447-0001 37447-0002
9Capscrew 5/8-11x2” Long 8 37007-0461 37007-0461 37007-0461 37007-0461
10 Lockwasher 5/8” 8 U43-14SS U43-14SS U43-14SS U43-14SS
11 Gasket (Volute Discharge) 1 33450-8042 33450-8042 33450-8042 33450-8042
12 Volute 1 16830-0100 16830-0100 16830-0101 16830-0101
13 Wear Ring 1 16830-0120 16830-0120 16830-0120 16830-0120
14 Gasket (Volute Suction) 1 33450-8041 33450-8041 33450-8041 33450-8041
15 Impeller 1 16830-0209 16830-0210 16830-0211 16830-0212
16 Capscrew 3/8-16x1" Long 1 S23566 S23566 S23566 —
16 Capscrew 1/2-13x1" Long 1 — — — S23619
17 Stat-O-Seal Washer 1 C43-46SS C43-46SS C43-46SS C43-46SSA
18 Impeller Washer 1 38917-0203 38917-0203 38917-0203 38917-0204
19 Gasket (Impeller to washer) 1 33455-8043 33455-8043 33455-8043 33455-8045
20 Drain Plug 1/2” NPT 1 U78-59D U78-59D U78-59D U78-59D
21 Gasket (Volute to Bracket) 1 S04757 S04757 S04757 S04757
22 Lockwasher, 1/2" 4 U43-13SS U43-13SS U43-13SS U43-13SS
22A Nut, 1/2” 4 S23488 S23488 S23488 S23488
23 Stud, 1/2-13x1-1/2” Long 4 30747-0152 30747-0152 30747-0152 30747-0152
24 Gasket (Impeller to Shaft Sleeve) 1 33455-8044 33455-8044 33455-8044 33455-8046
•Nameplate 1 32157-0072 32157-0072 32157-0072 32157-0072
•Decal 1 U27-404 U27-404 U27-404 U27-404
•Warning Tag 1 U63-123 U63-123 U63-123 U63-123
•Tag, Instructions, Rotating Seal 1 U63-13 U63-13 U63-13 U63-13
•Tag, No Motor Overload** 1 U63-75 U63-75 U63-75 U63-75
•Decal, Thermal Protection 1 32165-4020 32165-4020 32165-4020 32165-4020
•Tag, Hazardous Suction 1 61002-0012 61002-0012 61002-0012 61002-0012
* 7-1/2 HP: 1 Phase only. ** 3 Phase only. • Not illustrated.
12
5
89
10
24 21 20
16
12
11
67
4
3A, 3B
13
14
15
17
18
19
22A 2223
Discharge pipe
is user supplied
Repair Parts List
Models
A142C, A142C3
A143C, A143C3
A144C3, A145C3

15
PKG A184S Strainer Repair Parts List
Key Part Standard Flange
No. Description Qty Pkg A184S
1Strainer Body 1 16401-0010
2O-Ring 1 35505-0421
3Strainer Cover 1 16401-0211
4Pipe Plug, 1/4” Square Head 1 U78-57D
5Strainer Basket 1 16401-0102
6Pipe Plug, 1/2” Square Head Brass 1 U78-59D
7Wing Nut 2 35404-0319
8Toggle Bolt 2 30767-0011
9Spring Pin 2 35857-0031
• Gasket, Suction Flange 2 33450-8041
• Capscrew, 3/4-10x2” Long 16 U30-96SS
• Capscrew, M20x2.5, 50 mm Lg., SS 16 ––
• Lockwasher, 3/4” 16 U43-109SS
• Lockwasher, M20 SS 16 ––
• Tag, Hazardous Suction 1 61002-0012

16
Pumps manufactured for Astral are warranted to be free of defects in material and workmanship for one (1) year from
date of installation.
The foregoing warranties relate to the original consumer purchaser (“Purchaser”) only. Astral shall have the option to re-
pair 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 Astral’s direct control.
This warranty sets forth Astral’s sole obligation and Purchaser’s exclusive remedy for defective products.
ASTRAL 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 WAR-
RANTIES, 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.
Astral Products, Inc., 8525 Mallory Rd., Jacksonville, FL 32220
ASTRAL LIMITED WARRANTY
0200
(757)
100
(378.5)
300
(1138.5)
400
(1514)
500
(1892.5)
600
(2271)
700
(2649.5)
800
(3028)
900
(3406.5)
.5
(3.5)
1.0
(6.9)
1.5
(10.3)
2.0
(13.8)
Flow in GPM (LPM)
PRESSURE DROP in P.S.I. (kPa)
184
,
184C
,
184E
,
184CE
Max. Flow Rate 850 GPM
Pressure Drop Curve
for PKG A184S Strainer
Max. Flow Rate 850 GPM