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GT IRRI-GATOR TM
SELF -PRIMING CENTRIFUGAL PUMPS
INSTRUCTION MANUAL
IM049R09
GOU LDS
a xylem brand
TABLE OF CONTENTS
SUBJECT
PAGE
SafetyInstructions..................................................................................................................................................................2
Descriptionand Specifications ........................
............................................................................... 2
EngineeringData...................................................................................................................................................................2
Piping- Suction ....................................................
.................................................................... 2
- Discharge..................................................................................................................................................................
3
Wiring and Grounding
...........................................................3
Rotation. ............................ .................................................................................
................................................................ — 3
Operation ...................................................................
............................................... 3
Maintenance.............................................................. .............................................................................................................
3
Disassembly......................................................................4
..........................................................................
Reassembly.........................................................4
ElectricalData..............................................................................................-........................................................................4
.................................................................
Trouble Shooting..................................................4
ElectricalData........................................................................................................................................................................
5
Repair Parts ..................................... ........................
...................... 5
Limited Warranty
............................................. ............ 8
MODELS AND OWNER'S INFORMATION
single Phase
Model Number: -
GT07
GT10
Serial Number: -
GT15
GT20
Dealer:
GT30
Three Phase
GT073
Dealer Telephone:
GT103
GT153
Purchase Date: —
GT203
GT303
Installation Date: _
SAFETY INSTRUCTIONS
TO AVOID SERIOUS OR FATAL PERSONAL INJURY OR
MAJOR PROPERTY DAMAGE, READ AND
FOLLOW ALL SAFETY INSTRUCTIONS IN MANUAL
AND ON PUMP.
This is a SAFETYALERT SYMBOL. When
you see this symbol on the pump or in the
manual, look for one of the following signal
words and be alert to the potential for
personal injury or property damage.
.. Warns of hazards that WILL cause serious
personal injury, death or major property
damage.
AWARNING Warns of hazards that CAN cause serious
personal injury, death or major property
damage.
A CAUTION Warns of hazards that CAN cause personal
injury or property damage,
NOTICE: Indicates special instructions which are very
important and must be followed.
THIS MANUAL IS INTENDED TO ASSIST IN THE IN-
STALLATION AND OPERATION OF THIS UNIT AND
MUST BE KEPT WITH THE PUMP.
THOROUGHLY REVIEW ALL INSTRUCTIONS AND
WARNINGS PRIOR TO PERFORMING ANY WORK
ON THIS PUMP,
MAINTAIN ALL SAFETY DECALS.
NOTICE: INSPECT UNIT FOR DAMAGE AND REPORT
ALL DAMAGE TO THE CARRIER OR DEALER
IMMEDIATELY. DO NOT USE PUMP IF
DAMAGE IS SUSPECTED.
AVVARNING UNITS NOT DESIGNED FOR USE
WITH HAZARDOUS LIQUIDS OR
FLAMMABLE GASES.
Hazardous Fluids
can cause fire,
burns or death.
AWARNING This product can expose you to
chemicals including Lead, which is known to
the State of California to cause cancer and birth defects
or other reproductive harm.
For more information go to: www.P65Warnings.ca.gov.
DESCRIPTION AND SPECIFICATIONS
• The Model GT embraces a line of end suction, single
stage, self -priming centrifugal pumps for lawn sprin-
kling, HVAC systems, and general water transfer.
• Casing is cast iron construction with tapped openings
provided for vacuum gauge and casing drain.
• Impellers are enclosed design, glass filled NoryITM
threaded directly on motor shaft.
• Standard motors are NEMA standard, 3500 RPM, open
drip proof enclosure.
ENGINEERING DATA
Model
HP
Ph/Hz
Suction
Discharge
WL lbs.
GT07
'/4
1/60
1 Yz" NPT
1 Yz" NPT
48
GT10
1
52
GT15
11/z
60
GT20
2
65
GT30
3
76
GT073
'/4
3/60
49
GT103
1
52
GT153
11/2
55
GT203
2
69
GT303
3
71
• Maximum Liquid Temperature: 160°F (71 °C)
• Maximum Starts per Hour: 20 - evenly distributed
PIPING
• Pump MUST be installed horizontally on a solid flat
surface, with discharge on top.
• Allow adequate space for servicing and ventilation.
Protectthe unitfrom weather and water damage due
to rain orflooding orfreezing temperatures.
• Piping should be no smaller than the suction and dis-
charge connections and kept short as possible, avoid-
ing unnecessary fittings to minimize friction losses.
• All piping MUST be independently supported and
MUST NOT place any piping loads on the pump.
NOTICE: DO NOT FORCE PIPING INTO PLACE AT
PUMP SUCTION AND DISCHARGE
CONNECTIONS.
• All pipe joints MUST be airtight.
• The use of TeflonTM tape, or equivalent, is recom-
mended for ALL pipe joints.
SUCTION
• Total suction lift, including elevation and pipe friction
loss, should not exceed 25 feet of head.
• Install an airtight union in the suction line close to the
pump. See Figure 1.
• Installation of a foot valve at liquid source is recom-
mended.
NOTICE: FOR INSTALLATIONS WITH LONG SUC-
TION PIPING, BOTH A FOOT VALVE AND A
CHECK VALVE ARE RECOMMENDED.
• To avoid air pockets, no part of the piping should be
above the pump suction connection and piping should
slope upward from liquid source.
• For installations with long suction piping, fill the suction
pipe with water before connecting to pump.
DISCHARGE
• Install a tee at the discharge connection of the pump.
The top opening of the tee is required for initial prim-
ing. See Figure 1.
PRIMING OPENING
FUSED OR
CIRCUIT BREAKER
DISCONNECT MEANS UNION
Figure 1
WIRING AND GROUNDING
Install, ground and wire
,&WARNING
A
according to local and National
40
Electrical Code requirements.
an all leg electrical power
AInstall
disconnect switch near the
pump.
Disconnect electrical power
Hazardous voltage
can shock, burn or
A
before installing or servicing
cause death.
pump.
AElectrical supply MUST match pump's name-
plate specification. Incorrect voltage can cause
fire or damage to the motor and voids war-
ranty.
AMotors without built-in protection MUST be
provided with contactors and thermal over-
loads for single phase motors, or starters with
heaters for three phase motors. See motor
nameplate.
• Follow motor manufacturer's wiring diagram on the
motor nameplate or terminal cover carefully.
• Use only copper wire to motor and ground. The
ground wire MUST be at least as large as the wire to
the motor. Wires should be color coded for ease of
maintenance.
RECOMMENDED MINIMUM WIRE SIZE
Distance from Service Entrance to Motor
HP
50 Ft. (15 m)
100 Ft. (30 m)
150 Ft. (46 m)
200 Ft. (61 m)
115V
230V
115V
230V
115V
230V
115V I
230V
3/4
12
14
10
14
8
14
6
12
1
12
14
8
14
8
12
6
12
11/2
10
14
8
14
-
12
-
10
2
10
14
8
14
-
12
-
10
3
-
12
-
12
-
10
-
10
,&WARNING
FAILURE TO PERMANENTLY GROUND
THE PUMP, MOTOR AND CONTROLS
Hazardous
BEFORE CONNECTING TO ELECTRI-
voltage
CAL POWER CAN CAUSE SHOCK,
BURNS, OR DEATH.
ROTATION
NOTICE: INCORRECT ROTATION MAY CAUSE
DAMAGE TO THE PUMP AND VOIDS THE
WARRANTY.
• Correct rotation is right hand, CLOCKWISE when
viewed from the motor end.
• Three phase unit rotation may be checked by remov-
ing motor end cap or plug and observing rotation of
motor shaft. To reverse rotation, reverse any two of the
three motor leads.
OPERATION
,&WARNING OPERATION WITHOUT PRIME, OR
AGAINST CLOSED DISCHARGE
IdVALVE, CAN GENERATE HOT WATER
OR STEAM CAUSING INJURY OR
PROPERTY DAMAGE.
NOTICE: DO NOT OPERATE PUMP
Extreme heat can WITHOUT PRIME OR SEAL
cause personal injury DAMAGE WILL RESULT.
or property damage
• Prime pump by filling pump and piping through open-
ing in top of tee with clean water. See Figure 1.
• Install pipe plug in top of tee using TeflonT11 tape or
equivalent.
NOTICE: IF PUMP IS DRAINED OR SHUT OFF DUR-
ING PRIMING PERIOD, CASING MUST BE
REFILLED BEFORE RESTARTING PUMP,
• Start the pump and partially open discharge valve and
wait for system pressure to stabilize. If system pressure
is surging, or prolonged pressure drop is experienced,
the system may not be completely primed.
MAINTENANCE
FAILURE TO DISCONNECT ELECTRI-
,&WARNING
CAL POWER BEFORE ATTEMPTING
ANY MAINTENANCE CAN CAUSE
SHOCK, BURNS OR DEATH.
• No lubrication is required on pump.
For motor lubrication, referto and
follow manufacturer's instructions.
Hazardous voltage
can shock, burn or
cause death.
SEASONAL SERVICE
• To REMOVE pump from service, remove all drain plugs
and drain all piping.
• To RETURN pump to service, replace all drain plugs
using Teflon 'tape or equivalent.
• Reconnect suction line if removed, examine union and
repair if necessary.
• Reprime and operate pump following all instructions
and warnings in the "OPERATION" section of manual.
DISASSEMBLY
AWARNING FAILURETODISCONNECTELECTRI-
CAL POWER BEFORE ATTEMPTING
ANY MAINTENANCE CAN CAUSE
SHOCK, BURNS OR DEATH.
41
Hazardous voltage
can shock, burn or
cause death.
1. Remove foot bolt (10).
2. Remove casing bolts (12).
3. Remove back pull-out assembly from casing (2).
4. Remove diffuser seal ring (3) and diaphragm (4).
S. Remove diffuser screws (5) from adapter (11).
6. Remove motor end plug or cover.
7. Restrain motor shaft from rotation by utilization of the
screwdriver slot, or 7/16" shaft flats, accessible at the
motor shaft end.
8. Remove impeller (7), turning COUNTER-
CLOCKWISE.
9. Using two screwdrivers, pry off rotary section of me-
chanical seal (8). Discard. See Figure 2.
10. Remove motor adapter bolts (12) and remove motor
adapter from motor.
11. Push stationary seat of mechanical seal out of motor
adapter. Discard seal seat.
Figure 2
REASSEMBLY
0 Clean and inspect all parts before reassembly.
1. Inspect seal seat bore for wear and debris, clean and
replace as necessary.
NOTICE: MECHANICAL SEAL MUST BE REPLACED
WHENEVER SEAL HAS BEEN REMOVED.
FOLLOW SEAL MANUFACTURER'S IN-
STRUCTIONS CAREFULLY.
2. If necessary, seat ring may be lubricated with water or
glycerin to aid in installation. DO NOT contaminate
the seal face. Fully and squarely install the station-
ary seat into the adapter. With a clean, lint free cloth,
CAREFULLY wipe the seat face clean of debris. DO
NOT damage the seal seat face.
3. Reinstall the motor adapter on the motor, making
sure that the motor shaft does not dislocate or dam-
age the stationary seal seat.
4. Fully and squarely install the seal rotary assembly
against the stationary seat. Be sure rotating seal face
does not drop out of holding collar and DO NOT
damage seal face.
5.On three phase units, impeller MUST be installed
with LOCTITE° 243 (blue). Hold shaft from rotating,
as explained in the "DISASSEMBLY" section of the
manual, and install impeller by turning CLOCKWISE
until tight against motor shaft shoulder.
6. Replace diffuser. Align to prevent impeller rub.
7. Install new diaphragm and new diffuser seal ring.
S. Install motor and liquid end into casing.
9. Check impeller for binding by rotating the motor
shaft. If binding occurs, loosen casing bolts, readjust
diffuser until impeller hub turns freely. Retighten cas-
ing bolts in a crossing pattern.
10. Replace all drain plugs and motor end components.
11. Reprime and operate according to instructions in the
"OPERATION" section of this manual.
TROUBLESHOOTING
FAILURE TO DISCONNECT ELECTRI-
CAL POWER BEFORE ATTEMPTING
ANY MAINTENANCE CAN CAUSE
AWIARNING
SHOCK, BURNS OR DEATH.
Hazardous voltage
can shock, burn or
cause death.
SYMPTOM
Motor Not Running:
See Probable Causes 1 through 5.
Little or No Water Delivered:
See Probable Causes 3, 4, 6 through 12, 15.
Excessive Noise and Vibration:
See Probable Causes 3, 6, 7, 10, 12, 13, 14.
PROBABLE CAUSES
1. Motorthermal protector tripped.
2. Open circuit breaker or blown fuse.
3. Impeller binding.
4. Motor improperly wired.
5. Defective motor.
6. Pump is not primed, air or gases in pumpage.
7. Discharge, suction plugged or valve closed.
8. Incorrect rotation. (3 phase only)
9. Low voltage or phase loss.
10. Impeller worn or plugged.
11.System head too high.
12. NPSHA too low - excessive suction lift or loss.
13. Discharge head too low - excessive flow rates.
14.Pump, motor or piping loose.
15.End of suction piping not submerged.
ELECTRICAL DATA
Model
HP
Voltage
Full Load Amps
Fuse
Circuit Breaker
Standard
DelayPh/Hz
GT07
'/4
115/230
13.8/6.9
45/25
45/25
25/15
1/60
GT10
1
115/230
16/8
50/25
50/25
30/15
1/60
GT15
1'/2
115/230
20/10
60/30
60/35
35/20
1/60
GT20
2
230
13.9
40
40
25
1/60
GT30
3
230
17
60
60
30
1/60
GT073
'/4
208-230/460
3.1-2.8/1.4
10-10/10
10-10/10
10-10/10
3/60
GT103
1
208-230/460
4-3.6/1.8
15-15/10
15-15/10
15-10/10
3/60
GT153
11/2
208-230/460
5.7-5.2/2.6
20-20/10
20-20/10
15-10/10
3/60
GT203
2
208-230/460
7.5-6.8/3.4
25-25/15
1 25-25/15
15-15/10
1 3/60
GT303
3
208-230/460 1
10.6-9.6/4.8
35-30/15
1 35-30/15
20-20/10 1
3/60
REPAIR PARTS LIST
Part No.
Item
No.
Description
P
Material
GT07/
GT10/
GT151
GT201
GT30/
GT073
GT103
GT153
GT203
GT303
1
PT Pipe
Plated Steel
61<2
Plug
2
Casing
Cast Iron
11<324
3
Guidevane
Seal Ring
BUNA
51<555
4
Diaphragm
Neoprene
5K522
Fillister Head
5
Machine
Stainless Steel
13K4
13K4
13K2
131<2
131<2
Screw
6
Guidevane
Lexan' 10%G.F.
3K72
3K71
3K70
3K70
3K69
Noryl�20% G.F.
2K715
2K71 6
21<714
21<713
21<712
7
Impeller
Silicon Brass
2K1262
21<1263
2K1264
21<1265
21<1266
8
Mechanical
Carbon/Ceramic/
10K258
Seal
BUNA
9
Pump Foot
(old style)
Steel
4K408
15K60
Tall Pump Base
with Rubber
9B
Channel
Replaces
Steel
151<86
15K60 or
4K408
Pump Foot Bolt
10
(use with
Steel
13K252
4K408 only)
11
MotorAdapter
Cast Iron
11<310
12
Casing Bolt
Steel
13K102 (4 required)
13
MotorAdapter
Steel
131<69
Bolt
14
Deflector
BUNA
5K7
NOTE: Pump models with "B" suffix use Silicon Brass Impellers. Noryl
and Silicon Brass impeller materials are interchangeable. Hydraulic
performance will not be affected with either impeller material.
8
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o
6
3
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Motor Codes
HP
10-ODP
30-ODP
.75
J05853R
C05873
1.0
J06853R
C06873
1.5
J07858R
C07878
2.0
J08854R
C08874
3.0
J09853R
C09874
M
1 13
UP; \ 12
7 11
® e
10
9
14