STA-RITE DURA-JET 5JTAC-A User manual

DURA-JET TUB PUMP
230 Volt, 50 Hz
O W N E R’ S M A N U A L
INSTALLATION, OPERATION & PARTS
MODELS
1/2 HP 3/4 HP
5JTAC-A 5JTAD-A
Sta-Rite Pool/Spa Group
600 S. Jefferson Street, Waterford, WI 53185
U.S National: 800-752-0183, FAX [phone] ▲Canada: 416-629-1611, FAX: [phone]
International: 414-728-5551, FAX: [phone], TELEX: ITT 4970245
Oxnard, CA • Orlando, FL • Union City, TN • Delavan, WI • Mississauga, Ont
Printed in U.S.A. © 1993, Sta-Rite Industries, Inc. S224 (Rev. 9/8/93)
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.

2
DURA-JET TUB PUMP
To avoid unneeded service calls, prevent possible injuries, and get the most
out of your pump, READ THIS MANUAL CAREFULLY!
The Sta-Rite ‘JT’ Series Tub Pump:
• Is designed to circulate hot water in jetted tubs.
• Is an excellent performer; durable, reliable.
• Drains completely to assure sanitation, meet IAPMO standards.
Table of Contents
Warranty.......................................................................................................2
Safety Instructions ........................................................................................3
Installation....................................................................................................4
Electrical....................................................................................................5-6
Operation.....................................................................................................7
Pump Service.............................................................................................8-9
Troubleshooting Guide...............................................................................10
Repair Parts List ..........................................................................................11
LIMITED WARRANTY
Pumps, filters, spa systems, 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.
HRPB, DEPB and System 3 are warranted against defects in material and workmanship for a period of ten (10) years
from date of installation. Internal filter components and valves are warranted for a period of one (1) year from date
of installation.
The foregoing warranties relate to the original consumer purchaser (“Purchaser”) only. Sta-Rite shall have the op-
tion 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, mis-
application, 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 WAR-RANTIES 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., 600 S. Jefferson St., Waterford, WI 53185

3
READ AND FOLLOW ALL
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 in-
jury, or major property damage if ignored.
warns about hazards that can cause death, serious personal in-
jury, 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 pres-
sure 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-cm) torque for testing.
•Water pressure for test must be less than 25 PSI (172 kPa).
• 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.
NOTICE: These parameters apply to Sta-Rite equipment only. For
non-Sta-Rite equipment, consult manufacturer.
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
INSTALLATION
Installation and wiring of pump should only be done by qualified, licensed
personnel.
Pump mount must:
Be Solid - Level - Rigid - Vibration free. (To reduce vibration and pipe stress,
bolt pump to mount.)
Be installed with pump suction inlet higher than tub suction fitting. (This al-
lows pump to drain completely when tub is drained.)
Have pump suction below tub water level when pump is running.
Be protected from excess moisture.
Allow adequate access for servicing pump and piping.
Ventilation:
Provide adequate ventilation to prevent motor overheating.
For continuous running, motor hot air exhaust must be able to escape tub
motor compartment.
Piping:
Use flexible or rigid PVC pipe for connections to pump.
Use at least 1-1/2" IPS pipe.
Fittings restrict flow; for best efficiency use fewest possible fittings.
Unions are provided. Use as follows for leak-free connections to pump:
1. ‘O’ Ring and sealing surfaces must be clean.
2. Assemble handtight only! (NO WRENCHES!)
3. NO pipe compound or Teflon tape on unions.
4. Bond pipe to unions with PVC cement.
Use PVC cement only in a well ventilated area away from flame;
FOLLOW MANUFACTURER‘S INSTRUCTIONS!
Fittings:
Size and number of jets will have a major effect on jet action.
Typical installations use up to four 7/8" or 3/4" diameter jets or up to seven
1/2" diameter jets.
Tub fittings must meet International Association of Plumbing and Mechanical
Officials (IAPMO) standards for jetted bathtubs. Use only non-entrapping suc-
tion fitting or double suction.

5
ELECTRICAL
Ground motor before connecting to electrical power supply! Failure to
ground pump motor can cause serious 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.
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 (230 Volt, 50 Hz
single phase only)! Incorrect voltage can cause fire or seriously damage
motor and voids warranty!
Grounding:
Install, ground, and wire motor according to local or National Electrical Code
requirements.
Permanently ground motor; use size and type wire required by code.
Ground connection must be made to green grounding terminal under motor
canopy or access plate (see Figure 1).
Connect motor ground terminal to electrical service ground.
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.
Install and bond pump according to local codes and ordinances; use copper
bonding lug on motor (see Figure 1).
Wiring:
Use Ground Fault Circuit Interrupter (GFCI) as master on-off switch; it will
sense a short circuit to ground and disconnect power before it becomes dan-
gerous to spa users. Test GFCI according to manufacturer’s instructions.
Pump must be permanently connected to circuit; be sure no other lights or ap-
pliances are on the same circuit.
Match wire size and circuit breaker size to Table I, Page 6.
Hazardous voltage.
Can shock, burn,
or cause death.
Ground pump before
connecting to
power supply.
BONDING
LUG
MOTOR NAMEPLATE
GREEN
GROUND
SCREW
MOTOR
CANOPY
THROUGH
BOLTS
A
B
L2
L1
WHITE W/
BLACK TRACER
BLACK
115
VOLT
LINES
A: Typical ground screw and bonding lug locations.
Figure 1 – Electrical connections; motor terminal
block and bonding.
B. Motor terminal block connections.
115 Volt Hookup

6
Voltage:
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.
TABLE I - RECOMMENDED WIRING DATA 50 HZ 230V. MOTORS
Dist in Ft. (M) - Service to Motor
Model Motor 0-100 101-200 201-300 Temp.
No. H.P. (0-30) (31-60) (61-90) Rating-°C
5JTAC-A 1/2 14 (2.0) 14 (2.0) 14 (2.0) 75
5JTAD-A 3/4 14 (2.0) 14 (2.0) 14 (2.0) 75
TABLE II - RECOMMENDED CIRCUIT BREAKER SIZES 50 Hz 230V. MOTORS
Model Motor Full Load Branch Circuit Breaker
No. H.P. (amps) Rating (amps)
5JTAC-A 1/2 4.0 15
5JTAD-A 3/4 4.7 15

7
OPERATION
Priming Pump:
NEVER run pump dry! Running pump dry may damage seals, causing
leakage and flooding! Fill tub to 2 inches (51mm) above top of jets
before starting system.
Do not block pump suction! To do so with body may cause severe or
fatal injury. Small children using spa must ALWAYS have close adult
supervision!
NOTICE: Do not block jets! To do so may flood area causing damage to
equipment and water damage to surrounding area.
Water:
Keep water temperature at 104°F (40°C) or below.
Age or health conditions may require a lower temperature; consult a physi-
cian for more information.
If in doubt, start at a lower temperature and gradually increase it according to
your experience.
Keep an accurate thermometer in bath; check it before getting in.
Do not use or allow the use of the tub by anyone using alcohol or
drugs. The effects of hot water, alcohol and/or drugs can cause dizzi-
ness and falling, loss of consciousness, or heart attack.
A long bath in hot water may cause hyperthermia (too much heat in
the body) which can be fatal. Some symptoms of hyperthermia are:
• Nausea
• Dizziness
• Fainting
If these symptoms appear while in the spa, GET OUT AT ONCE!
Cool the body at once with cold towels or a cool shower.
Call a doctor if symptoms do not go away.
Hazardous suction.
Can trap hair or
body parts, causing
severe injury
or death.
Do not block
suction.
Too much heat
can cause nausea,
dizziness,
fainting, or death.
Check temperature.
before using tub.

8
PUMP SERVICE
Pump should only be serviced by qualified personnel.
To avoid dangerous or fatal electrical shock hazard, disconnect power
to motor before working on pump or motor!
No lubrication or regular maintenance are needed.
If shaft seal is damaged, repair as follows:
Removing Old Seal:
1. Disconnect power to pump motor.
2. Drain tub and pump; disconnect unions to allow access to pump.
3. Remove six bolts holding front plate to seal plate; remove front plate.
4. Remove shaft cover or motor canopy; using screwdriver in slot on motor
end of shaft or wrench on flats of shaft extension, hold pump shaft and un-
screw impeller from shaft (turn counterclockwise). Rotating half of seal will
come off with impeller.
NOTICE: Pump may have spacing shims inside impeller sleeve (against
shaft shoulder). Do not lose or damage shims! If impeller needs replace-
ment or if shims are lost, see authorized service representative.
5. Carefully remove rotating part of seal from impeller sleeve by pulling and
turning on sealing washer and spring (Figure 2). Do not damage impeller
surface where drive ring seats and seals.
6. Carefully remove four motor throughbolts from seal plate (Figure 3); remove
seal plate and use a screwdriver to tap ceramic seat out from the rear
(Figure 4). Do not damage seal cavity in seal plate.
7. Clean cavity from which seal was removed and clean motor shaft.
Hazardous voltage.
Can shock, burn,
or cause death.
Disconnect power
before working
on pump or motor.
Figure 2
Figure 3
Figure 4

9
Installing New Seal:
1. Ceramic seat must be clean and free of dirt, grease, dust, etc. Wet rubber
cup gasket of ceramic seat with small amount of liquid detergent; press into
cavity firmly and squarely with finger pressure (Figure 5).
2. If ceramic seat will not locate properly, remove it, place face up on bench,
and reclean cavity. Ceramic seat should now locate.
3. Seal must be free of dirt, grease, grit, scratches or chips; be sure impeller
sleeve is clean. Slide seal assembly, rubber drive ring first, onto impeller
sleeve until drive ring bottoms on impeller back shroud.
4. Slip slinger over shaft; remount seal plate. Torque throughbolts to 25 inch-
lbs. (29 cm-kg).
5. Impeller shim(s) (if used) go over threaded shaft end against shaft shoulder.
Be sure to replace all shims for correct impeller spacing. Screw impeller
onto shaft until it seats against shaft shoulder. Work slinger over end of im-
peller sleeve so it rides on sleeve (Figure 6).
6. Remount front plate; using pattern, shown in Figure 7, torque bolts to 30
inch-lbs. (34.6 cm-kg). BE SURE to start with bolt in 3 o’clock position as
shown.
7. Reconnect unions; tighten hand tight only.
Figure 5
Figure 6
#1
#6
#2
#5 #3
#4
Start
Here
Figure 6 – Torque Sequence

10
TROUBLESHOOTING GUIDE
Read and understand safety and operating instructions in this manual
before doing any work on pump!
A. PUMP DOES NOT OPERATE
1. Check GFCI for proper operation according to GFCI manufacturer’s in-
structions.
2. Check for plugged impeller. Follow disassembly/assembly instructions
under “ Pump Service”, Page 8.
3. Consult dealer/installer or service representative.
B. IMPROPER JET ACTION
1. Check for blocked fittings. Blocked fittings will cause poor flow and poor jet
action.
2. Consult dealer/installer or service representative.
C. EXCESSIVE AIR IN SYSTEM – PUMP LOSES PRIME
1. Make sure water level in spa is at least 2" (51 mm) above top of jets with sys-
tem not operating.
2. Make sure there are no leaks in suction piping.
3. Make sure there is no vortex (whirlpool) at the suction.
4. Consult dealer/installer or service representative.
D. CIRCUIT BREAKER IN HOME PANEL TRIPS REPEATEDLY
1. Breaker must be of adequate capacity.
2. For GFCI breaker: test according to GFCI manufacturer’s instructions.
3. Make sure no other lights and appliances are on circuit.
4. Consult dealer/installer or service representative.