Grundfos SPK Series, CRK Series, MTR Series, SPK1, SPK2 Installation And Operating Instructions Manual

...
Installation and Operating Instructions
CONTENTS
SAFETY WARNING
Page 1
PRE-INSTALLATION CHECKLIST INSTALLATION PROCEDURES
Pages 1-2
OPERATING THE PUMP
Page 3-4
MOTORS
Page 5
TROUBLESHOOTING
Page 6-7
LIMITED WARRANTY
Page 10
Please leave these instructions with the pump for future reference
SAFETY WARNING
Shock Hazard
A faulty motor or wiring can cause electrical shock that could be fatal, whether touched directly or conducted through standing water. For this reason, proper grounding of the motor frame to the power supply's grounding terminal is required for safe installation and operation.
In all installations, the above-ground metal plumbing should be connected to the power supply ground as described in Article 250-80 of the National Electrical Code.
1. Confirm You Have The Right Pump
• Read the nameplate to ensure it is the one you ordered
• Compare the pump's nameplate data or its performance curve (for head, GPM, etc.) with the application in which you plan to install it.
Will it do what you expect it to do?
1.1 Pump Key for SPK/CRK
CRK 4 - 160 / 2 -x -x -x -xxxx
Pump Range Nominal Flow Rate in m Number of Stages x 10 (SPK x 1) Number of Impellers Code for Pump Version Code for Pipework Connection Code for Materials Code for Shaft Seal and Rubber Pump Parts
1.2 Pump Key for MTR
Pump Range Nominal Flow Rate in m Number of Stages Number of Impellers
pump has fewer impellers than chambers)
Number of impellers with reduced diameter Code for Pump Version Code for Pipework Connection Code for Materials Code for Shaft Seal
Code for Pump Version
Type of Pump
A = Standard pump U = NEMA pump
Code for Pipe Work Connection
F = DIN flange G = ANSI flange J = JIS flange W = Internal thread
U - G - A - BUBE
Type of Shaft Seal
A = O-ring seal with fixed seal driver B = Rubber bellows seal C = O-ring seal with a spring working
as a driver
R = O-ring seal with reduced diameter
stationary ring H = Balanced seal, cartridge E = O-ring seal, cartridge
Material of Rotating Ring
B = Carbon, plastic impregnated C = Other types of carbon U = Tungsten carbide Q = Silicon carbide V = Aluminum oxide
3
/h
MTR 32 - 2 /1 -1 -x -x -x -xxxx
3
/h
(is only used if the
Physical Changes
B = Oversized motor P = Undersized motor T = Oversized motor X = Special product
Code for Materials
A = Standard materials I = Nonstainless parts converted to SS K = Intermediate bearings are bronze X = Special product D = Graflon® bearing
Materials of Secondary Seal and other Parts made of Plastic/Rubber
E = EPDM V = FKM K = Kalrez X = Special product
Material of Stationary Ring
B = Carbon, plastic impregnated C = Other types of carbon U = Tungsten carbide Q = Silicon carbide V = Aluminum oxide H = Carbon with imbedded Tungsten
(1 flange size smaller)
(2 flange sizes larger)
Carbide (Hybrid)
Electrical Work
All electrical work should be performed by a qualified electrician in accordance with the latest edition of the National Electrical Code, local codes and regulations.
WARNING:
The safe operation of this pump requires that it be grounded in accordance with the National Electrical Code and local governing codes or regulations. Connect the ground wire to the grounding screw in the terminal box and then to the acceptable grounding point.
Pre-Installation Checklist
2. Check the Condition of The Pump
The shipping carton your pump came in is specially designed around your pump during production to prevent damage. As a precaution, it should remain in the carton until you are ready to install it. At that point, look at the pump and examine it for any damage that may have occurred during shipping. Examine any other parts of the shipment as well (electrical control boxes, etc) for any visible damage. If you find any, contact the transportation company in writing and ask to have it inspected.
3. Electrical Requirements
Supply Power
The incoming electrical supply should be verified so the voltage, phase and frequency match that of the pump motor. The proper operating voltage and other electrical information can be found on the motor nameplate. These motors are designed to run on ±10% of the nameplate­rated voltage. For dual-voltage motors, the motor should be internally connected to operate on the voltage closest to the 10% rating, i.e., a 208 voltage motor wired per the 208 volt connection diagram. Wiring connection diagrams can be found on the plates attached to the motor.
If voltage variations are larger than ±10%, do not operate the pump.
Field Wiring
Wire sizes should be based on the current carrying properties of a conductor as required by the latest edition of the National Electrical Code or local regulations. Direct on line (D.O.L.) starting is approved due to the extremely fast run-up time of the motor and the low moment of inertia of pump and motor. If D.O.L. starting is not acceptable and reduced starting current is required, an auto transformer or resistant starter should be used. It is suggested that a fused disconnect be used for each pump where service and standby pumps are installed.
Motor Protection
1. Single-Phase Motors:
With the exception of 7 require external protection) single-phase SPK/CRK pumps are equipped with multi-voltage, squirrel-cage induction motors with built-in thermal protection.
1
/2 and 10 HP motors (which
Page 1
Installation Procedures
DISCHARGE
Standard
Terminal Box
Position
Can be rotated in 90˚ increments
2. Three-Phase Motors:
SPK/CRK/MTR Pumps with three-phase motors must be used with the proper size and type of motor-starter to ensure the motor is protected against damage from low voltage, phase failure, current imbalance and overloads. A properly sized starter with manual reset and ambient­compensated extra quick trip in all three legs should be used. The overload should be sized and adjusted to the full-load current rating of the motor. Under no circumstances should the overloads be set to a higher value than the full load current shown on the motor nameplate. This will void the warranty.
Overloads for auto transformers and resistant starters should be sized in accordance with the recommend­ations of the manufacturer.
4. Glance Through This Guide
Even if you are very familiar with the installation of this pump, a quick glance through the remaining sections of this guide may help you avoid a potential problem.
Installation Procedures
Installing The Pump
Pump Location
Grundfos SPK/CRK/MTR pumps are designed for tank-mounting and may be installed in either a vertical or horizontal orientation. Where the unit is to be installed so as to position its mounting flange below the liquid level or in a pressurized tank, a gasket must be fitted between the pump's mounting flange and tank.
Pump Mounting Model
SPK1/2/4/8 (NEMA) 5.5" (140) 6.3" (160) 7.1" (180) 1
SPK1/2/4 (IEC) 3.9" (100) 4.5" (115) 5.1" (130)
SPK8 (IEC) 5.5" (140) 6.3" (160) 7.1" (180) 1
CRK2/4 (NEMA) 5.5" (140) 6.3" (160) 7.1" (180) 1
CRK2/4 (IEC) 5.5" (140) 6.3" (160) 7.1" (180) 1
CRK8/16 (NEMA) 7.9" (200) 8.9" (225) 9.9" (250) 2.0" NPT 0.35" (9)
MTR32 7.5" (190) 8.7" (220) 9.9" (250) 2
MTR45/64 9.5" (240) 10.5" (265) 11.4" (290) 2
∅∅
A
∅∅
Pipework
The discharge ports of SPK/CRK pump units which are supplied for use with NEMA motors have 1 Other discharge pipe sizes must be accommodated via the use of appropriate adapter bushings.
Suction Conditions
The bottom of the pump strainer must be at least 1.0 inch above the bottom of the tank. The pumps are designed to provide full performance down to a level of A mm above the bottom of the strainer.
Page 2
3
8"
3
8
/
"
Mounting
(9.5 mm)
Holes (4)
∅∅
B
∅∅
1
4 inch female NPT threads.
7.1" (180 mm)
C
6.3" (160 mm)
B
5.5" (140 mm)
A
Discharge
1
4
1/
"
Female NPT
∅∅
C Discharge Hole Dia.
∅∅
1
4" NPT 0.28" (7)
3
4" BSPT 0.28" (7)
1
4" BSPT 0.28" (7)
1
4" NPT 0.37" (9.5)
1
4" BSPT 0.30" (7.5)
1
2" ANSI 0.47" (12)
1
2" ANSI 0.47" (12)
At a liquid level between A and B mm above the bottom of the strainer, the built-in priming screw will protect the pump against dry running.
MTR32, 45 and 64 pumps have no priming screw.
Figure 1: CRK2/4•SPK1/2/4/8
1"
PUMP TYPE A (IN.) B (IN.)
CRK2/4 1 5⁄8"1 1⁄8" CRK8/16 2.0" 1.0" SPK1/2/4/8 1 MTR32/45/64 2
5
8" 1.0"
3
4"
In general, it is recommended that the pump strainer be located as near
Figure 2: CRK8/16
as possible to the bottom of the tank. This maximizes first-stage submersion in condensate transfer applications and maintains fluid velocities in cutting lubricant
1"
Figure 3: MTR32/45/64
applications (see Figure 4).
Figure 4
1"
Separation of Particles
Out of consideration for the pump, the distribution system, the cutting tools and the treated materials, cooling/cutting fluids should, wherever possible, be free of particles before entering the pump unit. The system's requirements as to the purity of the pumped fluid depend on the machining methods, the treated materials and other criteria. Filtration methods should be matched to these requirements. Larger particles are unable to enter the pump with the pumped fluid due to the effect of the built-in inlet screen; particles enter the SPK and CRK pumps, and particles
∅∅
2 mm or smaller are allowed to
∅∅
∅∅
4 mm or smaller
∅∅
are allowed to enter the MTR pump.
Bypass
A bypass line or pressure relief valve should be installed in the discharge pipe if there is any possibility the pump may operate against a closed valve in the discharge line (or in any other no­flow condition). Flow through the pump is required to ensure adequate cooling and lubrication of the pump is maintained. The following table shows minimum flow rates:
PUMP TYPE MINIMUM FLOW RATE
SPK1 1.0 GPM SPK2 1.2 GPM SPK4 3.0 GPM SPK8 5.3 GPM CRK2 1.2 GPM CRK4 3.0 GPM CRK8 5.3 GPM CRK 16 8.5 GPM MTR 32 15 GPM up to 176°F (80°C)
MTR45 20 GPM up to 176°F (80°C)
MTR64 28 GPM up to 176°F (80°C)
35 GPM 176° - 194°F (80-70°C)
44 GPM 176° - 194°F
66 GPM 176°F - 194°F (80°C - 80°C)
Operating The Pump
DISCHARGE
Standard
Terminal Box
Position
Can be rotated in 90˚ increments
Position of Terminal Box
The motor terminal box can be turned to any of four positions in 90° steps. To rotate the terminal box, remove the four bolts securing the motor to the pump; turn the motor to the desired location; replace and securely tighten the four bolts.
Boiler Feed Installations
If the pump is being used as a
DISCHARGE
boiler-feed pump, make sure the pump is capable of supplying sufficient water throughout its entire evaporation and pressure ranges. Where modulating control valves are used, a bypass around the pump must be installed to ensure pump lubrication.
Standard
Terminal
Box
Position
Can be rotated in 90° increments
Operating the Pump
Replacing The Motor
If the motor is damaged due to bearing failure, burning or electrical failure, the following instructions detail how to remove the motor for replacement. It must be emphasized that motors used on SPK/CRK/MTR pumps are specially selected to our rigid specifications. Replacement motors must be of the same frame size.
Removing the Old Motor
1. Remove the coupling guard screens.
2. Using the proper cap screws in the coupling.
3. With the correct size wrench, loosen and remove the four bolts which hold the motor to the discharge section of the pump end.
4. Lift the motor straight up until the shaft is free from the coupling.
Installing the New Motor
1. Thoroughly clean the surfaces of the motor and pump end mounting flanges. Set the motor on the pump end.
2. Place the terminal box in the desired position by rotating the motor.
3. Insert the mounting bolts, then tighten diagonally and evenly.
4. Using a larger screwdriver, raise the pump shaft by placing the tip of the screwdriver under the coupling and carefully elevating the coupling to its highest point. Note: The shaft can only be raised approximately 0.20 inches (5 mm).
5. Now
lower
you just raised it (approximately the thickness of a dime), and retighten the coupling. Be sure to tighten the top and bottom screws on one side of the coupling and then the other.
the coupling screws to the following specifications.
metric
allen wrench, loosen the four
the shaft halfway back down the distance
metric
cap screws in the
Coupling Bolt Size
M6 M8 M10
Minimum Torque
Specifications
10 ft-lbs 23 ft-lbs 46 ft-lbs
Torque
6. Check to see that the gaps between the coupling halves are equal. Loosen and re-adjust if necessary.
7. Be certain the pump shaft can be rotated by hand. If the shaft cannot be rotated or it binds, disassemble and check for misalignment.
8. Replace the two coupling guard screens.
Starting The Pump The First Time
1. Air Elimination
As long as the pump body is partially submerged in fluid, the pump may be started against an open or a closed discharge line. If the discharge line is open, the air will quickly escape through the discharge pipe. If the discharge line is closed, the air will be pressed down through the pump body and out into the tank so that the discharge pressure will quickly reach its maximum (shutoff) level.
If the pump is fitted with a vent valve, this valve must be opened while running the pump against a closed valve. Once a steady stream of liquid is running out of this vent valve it can be closed.
2. Check the Direction of Rotation
a. Switch the POWER OFF. b. Make sure the pump has been filled and vented. c. Remove the coupling guard and rotate the pump shaft
to be certain it turns freely. Replace the coupling guard.
d. Verify that the electrical connections are in accordance
with the wiring diagram on the motor.
e. Switch the power on and observe the direction of
rotation. When viewed from the top, the pump
should rotate counter-clockwise.
f. To reverse the direction of rotation, first switch OFF the
supply power.
g. On three-phase motors, switch any two power leads at
the load side of the starter. On single-phase motors, refer to the connection diagram on the nameplate. Change wiring as required.
h. Switch the power ON and check for proper motor
rotation.
Starting And Adjusting
Before starting the pump, make sure that:
1. The pump body is partially submerged in the fluid.
2. The direction of rotation is counter-clockwise when
viewed from the top.
3. All piping connections are tight and the pipes are
adequately supported.
4. The pump inlet screen is clean and unblocked.
5. Depending on the application, it may be necessary to
start the pump against a closed discharge valve in order to prevent system damage due to water hammer. If so, this valve should be opened in a gradual manner after the pump is started. Unless used as a flow throttling device, make sure this valve is completely opened.
6. Check and record the voltage and amperage of the
motor. Adjust the motor overloads if required.
7. Check and record operating pressures if pressure
gauges have been installed.
Page 3
Operating The Pump
8. Check all controls for proper operation. If pump is controlled by a pressure switch, check and adjust the cut­in and cut-out pressures. If low-water-level controls are used, be sure the low-level switch is properly adjusted so the pump cannot run if the pump should break suction.
Improper Operation
No Flow
Under no circumstances should the pump be operated for any prolonged periods of time without flow through the pump.
This can result in motor and pump damage due to overheating. A properly sized relief valve should be installed to allow sufficient water to circulate through the pump to provide adequate cooling and lubrication of the pump bearings and seals.
Pump Cycling
Pump cycling should be checked to ensure the pump is not starting more than:
20 times per hour on 1/2 to 5 HP models 15 times per hour on 7 1/2 to 15 HP models 10 times per hour on 20 to 40 HP models
Rapid cycling is a major cause of premature motor failure due to increased heat buildup in the motor. If necessary, adjust controls to reduce the frequency of starts and stops.
Maintenance
Grundfos SPK/CRK/MTR multi-stage centrifugal pumps installed in accordance with these instructions and sized for correct performance will operate efficiently and provide years of service. The pumps are water-lubricated and do not require any external lubrication or inspection. The motors will require periodic lubrication as noted in the following paragraphs.
Do not over grease the bearings. Over greasing will cause increased bearing heat and can result in bearing/motor failure.
Periodic Safety Checks
At regular intervals depending on the conditions and time of operation, the following checks should be made:
1. Pump meets required performance and is operating smoothly and quietly.
2. There are no leaks, particularly at the shaft seal.
3. The motor is not overheating.
4. Remove and clean all strainers or filters in the system.
5. Verify the tripping of the motor overload protection.
6. Check the operating of all controls. Check unit control cycling twice and adjust if necessary.
7. If the pump is not operated for unusually long periods, the unit should be maintained in accordance with these instructions. In addition, if the pump is not drained, the pump shaft should be manually rotated or run for short periods of time at monthly intervals.
If the pump fails to operate or there is a loss of performance, refer to the Troubleshooting section on page 6.
Motor Lubrication
Electric motors are pre-lubricated at the factory and do not require additional lubrication at start-up. Motors containing sealed bearings do not require additional lubrication during the first 15,000 hours of operation. Motors with grease fittings should only be lubricated with a lithium based grease.
Service Conditions
Severity Temperature Atmospheric
of Service (Maximum) Contamination
Standard 104°F (40°C) Clean, little corrosion Severe 122°F (50°C) Moderate dirt, corrosion Extreme >122°F (50°C) Severe dirt, abrasive
Ambient
or Class H dust, corrosion insulation
Approved Types of Grease
Shell Dolium R Chevron SRI#2
Or compatible equivalent type of grease
Lubrication Schedule
NEMA/(IEC) Service Service Service Grease to Add Grease to Add
Frame Size Interval Interval Interval Oz./(Grams) In
Up through 210 (132) 5500 hrs. 2750 hrs. 550 hrs. 0.30 (8.4) 0.6 (2) Over 210 through 280 (180) 3600 hrs. 1800 hrs. 360 hrs. 0.61 (17.4)* 1.2 (3.9) Over 280 up through 360 (225) 2200 hrs. 1100 hrs. 220 hrs. 0.81 (23.1)* 1.5 (5.2) Over 360 (225) 2200 hrs. 1100 hrs. 220 hrs. 2.12 (60.0)* 4.1 (13.4) *The grease outlet plug MUST be removed before adding new grease.
Standard Severe Extreme Weight of Volume of
3
/(Teaspoons)
Page 4
The information below was updated March 30, 2001, but is subject to change without notice.
*
Grundfos makes no claims or warranties regarding the accuracy of the information herein.
Motors
Totally Enclosed Fan Cooled (TEFC) Baldor Motors*
60 HZ - Two Pole (3450 RPM)
HP PH FACTOR FRAME VOLTS LOAD START S.F. EFF . FACTOR AT 25 DEG C CLASS CODE NO.
1 1/2 1 1.3 56C 115/208-230 17/9.5-8.6 79.8/43.8-39. 9 20. 4/11.3-10.2 71.0 79 1. 178/1.302 B K 85.700005 1 1/2 3 1. 15 56C 208-230/460 5.0-4.6/2. 3 35.4-32/16 3.3-3/2.5 75.5 76 11. 2-12.3 B G 85.600005
7 1/2 1 1. 15 213TC 208-230 34.3-31 240-217 39.3-35.5 82.0 91 .2109/.2331 H F 85.700017 7 1/2 3 1. 15 213TC 208-230/460 19-17.2/8. 6 168. 1-152/76 21.7-19.6/9.8 87.5 94 1.4-1.5 F L 85.600017
*** Inf ormation unavailable at time of update.
SERVICE NEMA FULL LOCKED ROT OR/ POWER RESISTANCE INS. KVA PART
1/3 1 1.35 56C 115/230 2 24.5/12. 2 7.6/3.8 55.0 68 6. 489/7.172 B K 85.680001 1/3 3 1.35 56C 208-230/ 460 1.5-1.4/.7 11-10/5 1.7-1.6/. 8 70.0 65 38.2-42.3 B K 85. 580001 1/2 1 1.6 56C 115/208-230 7.4/4.1-3.7 36/ 19.8-18 9.8/5.2-4.9 62.0 69 3.382/3.738 B K 85.700002 1/2 3 1.25 56C 208-230/ 460 2. 1-2/1 12.4-11.3/5.6 2.6-2.4/1. 2 68. 0 63 34.06/37. 64 B J 85.600002 3/4 1 1.25 56C 115/ 208-230 9.6/5-4. 8 51/ 28-25.5 11.4/6-5.7 66.0 74 2.332/2.578 B K 85.700003 3/4 3 1.25 56C 208-230/ 460 2.7-2.6/.3 33-30/15 3.1-3/1.5 74.0 73 23.4-25.88 B K 85. 600003
1 1 1. 25 56C 115/230 11/5.5 77/38.5 14.4/7. 2 66. 0 81 2.347/2. 594 B K 85.700004 1 3 1. 25 56C 208-230/460 3.7-3.6/1. 8 24.3-22/11 4.1-4/2 75.5 76 15.9-17. 5 B H 85.600004
2 1 1. 15 56C 115/230 23/11.5 158.4/ 79.2 25.4/12.7 74.0 82 0.872 F K 85.700006 2 3 1. 15 56C 208-230/460 5.7-5.4/2. 7 38.7-35/17.5 6.3-6/3 78.5 93 10.7-11.8 B H 85.600006 3 1 1. 15 56C 115/208-230 30/16.5-15 172/95.1-86 32.2/16.1 77.0 87 0. 593 F H 84.6346075 3 3 1. 15 56C 208-230/460 7.8-7.4/3. 7 59.7-54/27 *** 82.5 87 5.5-6.1 F J 84. 6326074 3 1 1. 15 182TC 115/208-230 29/ 16-14.5 170/93. 5-85 32.8/18-16.4 75.0 88 .569/. 629 F H 85.700008 3 3 1. 15 182TC 208-230/460 8. 2-7.8/3.9 77. 4-70/35 9-8.6/.3 81.5 89 4.9-5.4 F K 85.600008 5 1 1. 15 213TC 230 22 170 25 80.0 89 0. 29 F J 85.700012 5 3 1. 15 184TC 208-230/460 13. 2-12/6 103.9-94/47 15-13.6/6.8 85.5 93 2.6-2.9 F K 85.600012
10 1 1. 15 213TC 230 40 233.5 46 85.5 97 *** F F 85.700022 10 3 1. 15 215TC 208-230/460 25-24/12 232.2-210/105 28.3-27.2/13.6 85.5 91 1.07-1.18 F J 85. 600022 15 3 1. 15 254TC 208-230/460 38-34/17 376-340/170 43.4-38.8/19.4 86. 5 94 .62-.69 H L 85.600024 20 3 1. 15 254TC 230/460 46/23 420/210 52.4/26.2 88.5 92 0. 36 F K 85.600035 25 3 1. 15 284TSC 208-230/460 61-58/29 482. 1-436/218 70-66/33 91.0 89 .30-.33 F H 85.600026 30 3 1. 15 286TSC 230/460 72/36 444/222 80/40 88.5 88 0.319 F G 85. 600027 40 3 1. 15 286TSC 230/460 94/47 580/290 105.2/ 52.5 90.2 89 0. 176 F *** 85.600032
AMPS
LINE TO LI NE GRUNDFOS
Open Drip Proof (ODP) Baldor Motors*
60 HZ - Two Pole (3450 RPM)
SERVICE NEMA FULL LOCKED ROTOR/ POWER RESISTANCE I NS. KVA PART
HP PH FACTOR FRAME VOLTS LOAD START S.F . EFF. FACTOR AT 25 DEG C CLASS CODE NO.
1/3 1 1.35 56C 115 -230 6-3 28- 14 7-3. 5 55. 0 68 7. 12 B K 84. Z00023 1/3 3 1. 35 56C 208-230/460 1.5-1.4/.7 20-10/5 1. 7-1. 6/.8 70.0 65 38.20-42.3 B J 85.600001 1/2 1 1.25 56C 115/ 208-230 7 .2/4-3. 6 30/ 16.58-15 8/4. 4-4 66.0 6 6 4 .72 B H 84. Z00024 1/2 3 1. 25 56C 208-230/460 2.1-2/1 13.27-12/6 2.6-2.4/1. 2 68.0 63 35. 1 B J 84.Z00001 3/4 1 1. 25 56C 115/208-230 9.6/5.3-4.8 56/ 30.96-28 11. 4/6.3-5.7 66. 0 74 2.5 B K 84. Z00025 3/4 3 1. 25 56C 208-230/460 9. 6-5. 3/4.8 16.81-15.2/7. 6 3.1-3/1. 5 74.0 73 24.6 B K 84. Z00003
1 1 1.25 56C 115/208-230 14/7.3-7 92/50. 87-46 16/ 8.8-8 65.0 65 1.63 B L 84. Z00026
1 3 1 .25 56C 208-230 /460 3. 2-3/1.5 24. 33-22/11 4. 2-3.8/1. 9 75.5 76 16. 7 B H 84.Z 00005 1 1/2 1 1.15 56C 115/208-230 18/8. 7-9.0 120.8/ 66.8-60.4 19.6/10. 8-9.8 68.0 77 1. 24 B G 84.Z00027 1 1/2 3 1.15 56C 208-230/460 4.9-4.6/2.3 40.7-36.8/18.4 5.3-5/ 2.5 80.0 74 8.53 B K 84. Z00007
2 1 1.15 56C 115/208-230 24/ 12 160/88.5-80 26/13 70. 0 75 0.844 B G 84.Z00028
2 3 1.15 56C 208-230/460 5.9-5.6/2.8 77.4-70.4/35. 2 6.5-6. 2/3.1 81. 5 89 10.7 B H 84.Z 00009
3 1 1 .15 56C 2 30 13 108 14.8 82.5 93 0.614 B K 84.624 6075
3 3 1.15 56C 208-230/460 8.4-8/4 66.35-60/30 9.5-9/4.5 82.5 89 5.6 B J 84.6226075
3 1 1.15 182TC 115/208-230 28/ 14. 7-14 148/81.83-74 32/18.3-16 78. 0 88 0.175 B G 84.Z00029
3 3 1.15 182TC 208-230/460 8.4-8/4 66. 35-60/30 9.5-9/ 4.5 82.5 89 5.6 B J 84.Z 00011
5 1 1.15 213TC 208-230 28-26 167.2-152 31-28.7 78.0 82 . 3259/.3602 B G 84.Z 00030
5 3 1 .15 184TCZ 208-2 30/460 13- 12/6 137. 8-124.6/ 62.3 14.7-13. 6/6.8 87. 5 90 2. 83 B L 84.Z0 0013 7 1/2 1 1.15 213TC 208-230 38-37 212.3-192 42-41 81.0 82 0.23 B G 84.Z00031 7 1/2 3 1.15 215TC 208-230/460 19-18/9 168.1-152/76 21-20/10 85.5 91 2 B J 84. Z00015
10 1 1.15 215TC 230 46 280 51.7 83.0 86 0.163 B G 84.Z00032 10 3 1. 15 215T C 2 08-230/460 2 7-25/13 195. 5-176.8/8 8.4 3 0-28/14 85. 5 91 1 .47 B H 84. Z00017 15 3 1.15 254TC 208-230/460 38-36/18 289.7-262/131 43-41/20.5 85.5 92 0.961 F G 84.Z00019 20 3 1.15 254TC 230/460 *** *** *** *** *** *** *** *** 84.Z03374 25 3 1.15 284TSC 230/460 59/29.5 372/186 67/33. 5 92.4 86 0.488 B G 84.Z00021 30 3 1.15 284TSC 230/460 73/36.5 432/216 81.2/40.6 90. 2 86 .3373/. 3728 F G 84.Z00022 40 3 1.15 286TSC 230/460 100/50 540/270 114.04/57.02 90.2 83 .1919/ .2121 B F 84.Z00033
*** Information unavailable at time of update.
AMPS
LINE TO LI NE GRUNDFOS
IEC IP55, IM 3611 (V18)*
60 HZ - Two Pole (3450 RPM)
Kw HP PH S. F. VOL TS LOAD ROT OR EFF . FACTO R RESISTANCE CLASS PART NO.
0.25 1/3 3 1. 0 220-255/380-440 1.10-1.02/0. 63-0.59 6.1-7.1/3.5-4.1 73/73 0.86/0.77 23.5 F 85. 105501
0.37 1/2 3 1. 0 220-255/380-440 1.50-1.44/0. 87-0.83 8.3-9.4/4.8-5.4 78/79 0.85/0.76 21.2 F 85. 805102
0.55 3/4 3 1. 0 220-255/380-440 2.15-2.05/1. 25-1.20 10.8-12.3/6.3-7.2 80.5/82 0.85/0.76 14.8 F 85. 805103
0.75 1 3 1.0 220-255/380-440 2.85-2.70/1.65-1.55 17.1-18.9/9.9-10.9 82/84 0.85/ 0.78 10.4 F 85.805104
1.1 1 1/2 3 1.0 220-255/380-440 4.15-3.80/2. 40-2.20 24.5-27.7/14.1-6.1 82/85 0.86/0.80 6.85 F 85.805105
1.5 2 3 1.0 220-277/380-480 5.70-5.00/3.30-2.90 33.6-42.0/19. 5-24.4 80.5/82 0.89/0.78 3.8 F 85.805906
2.2 3 3 1.0 220-277/380-480 8.05-6.95/4.65-4.00 52.3-66.0/31. 0-38.0 83/84.5 0.90/0.81 2.5 F 85.805908 3 4 3 1.0 220-277/380-480 10.6-9.00/6.10-5.20 78.4-99.0/45.1-57.2 86/87 0. 90/0.83 1.74 F 85.805810 4 5.5 3 1.0 220-277/380-480 13.6-11.4/7.85-6.60 109-137/63-79 87/88 0.92/ 0.85 1.64 F 85.805413
5.5 7 1/2 3 1.0 220-277/380-480 18.8-15.6/10. 8-9.00 154-193/89-112 87.5/ 89.5 0.92/0.85 1.12 F 85.807417
7.5 10 3 1.0 220-277/380-480 25.5-22.6/14.6-13.0 242-262/139-151 88.5/90 0.92/0.80 0.685 F 85.807422
11 15 3 1.0
220-277/380-480
37.0-30.2/21. 4-17.4 244-290/141-167 89/91 0.90/0.86
AMPERAGE
FULL LOCKED FULL LOAD POWER LINE TO LINE INS. GRUNDFOS
.37
F
85.807424
Page 5
Troubleshooting
Preliminary Checks
Supply Voltage
How to Measure
Use a volt meter, (set to the proper scale) measure the voltage at the pump terminal box or starter.
On single-phase units, measure between power leads L1 and L2 (or L1 and N for 115 volt units). On three­phase units, measure between:
Power leads L1 and L2
Power leads L2 and L3
Power leads L3 and L1
What it Means
When the motor is under load, the voltage should be within ±10% of the nameplate voltage. Larger voltage variation may cause winding damage and indicate a poor electrical supply. The pump should not be operated until these variations have been corrected.
If the voltage constantly remains high or low, the motor should be changed to the correct supply voltage.
Current Measurement
How to Measure
Use an ammeter, (set on the proper scale) to measure the current on each power lead at the terminal box or starter.
Current should be measured when the pump is operating at constant discharge pressure.
Winding Resistance
How to Measure NEMA
Turn off power and disconnect the supply power leads in the pump terminal box. Using an ohmmeter, set the scale selector to R x 1 and zero adjust the
meter by touching the two ohmmeter leads together.
Touch the leads of the ohmmeter to two motor leads.
Single phase motors - touching the leads of the ohmmeter to the two outgoing "hot" motor leads (either a single motor lead or combination of leads joined together) will measure the main winding's resistance.
Three phase motors - touching the leads of the ohmmeter to any two hot leads will measure that winding's resistance. Repeat for all three possible lead combinations (L L
and L3, L1 and L3)
2
and L2,
1
How to Measure IEC
Turn off power and disconnect the supply power leads in the pump terminal box. Using an ohmmeter, set the scale selector to R x 1 and zero adjust the meter by touching the two ohmmeter leads together.
Touch the leads of the ohmmeter to two motor terminals as follows:
Delta Hookup Y Hookup
Y
What it Means
If the amp draw exceeds the listed service factor amps (SFA) or if the current imbalance is greater than 5% between each leg on three-phase units, check the following:
1. Burned contacts on motor starter.
2. Loose terminals in starter/terminal box or possible wire defect.
3. Too high or too low supply voltage.
4. Motor windings are shorted or grounded. Check winding and insulation resistances.
5. Pump is damaged causing a motor overload.
Lead-To-Ground Resistance
How to Measure
Turn off power and disconnect the supply power leads in the pump terminal box. Using an ohmmeter, set the scale selector to R x 100 and zero adjust the meter by touching the two
ohmmeter leads together. Touch one ohmmeter lead to a motor lead and one to ground. Repeat for each lead. If measured resistance does not exceed 1,000,000 ohms, motor is bad and in need of replacement.
Terminals: U and X Terminals: U and X
V and Y V and Y
W and Z W and Z
Z
W2
U
U1
INCOMING POWER SUPPLY
X
U2
V
V1
V2
W1
Y
W
Z
W2
U
U1
INCOMING POWER SUPPLY
X
U2
V
V1
V2
W1
Y
W
What it Means
If all ohm values are normal, the motor windings are neither shorted nor open. If any one ohm value is less than normal (-25%), that motor winding may be starting to short. If any one ohm value is greater than normal (+25%), the winding may be starting to open. If some values are high and some are low, the leads may be connected incorrectly, or they may have a break in the insulating jacket.
Page 6
Troubleshooting
Diagnosing Specific Problems
The following checklist should help you troubleshoot most of the problems you may encounter during installation.
If The Pump... It May Be Caused By... Check This By.. Correct It By...
Does Not Run
Pump Runs But At Reduced Capacity or Does Not Deliver Water
Fuses Blow or Circuit Breakers or Overload Relays Trip
No power at pump panel
Fuses are blown or circuit breakers are tripped
Motor starter overloads are burned or have tripped out
Starter does not energize
Defective controls
Motor is defective
Defective capacitor. (Single-phase motors)
Pump is bound
Wrong rotation
Pump body not partially submerged
Strainers, inlet screen or valves are clogged
Entrained air in pumpage
Fluid cavitating
Pump worn
Pump impeller or guide vane is clogged
Low voltage
Motor overloads are set too low
Three-phase current is imbalanced
Motor is shorted or grounded
Wiring or connections are faulty
Check for voltage at panel
Turn off power and remove fuses. Check for continuity with ohmmeter
Check for voltage on line and load side of starter
Energize control circuit and check for voltage at the holding coil
Check all safety and pressure switches for operation. Inspect contacts in control devices
Turn off power and disconnect wiring. Measure the lead to lead resistances with ohmmeter (RX-1). Measure lead to ground values with ohmmeter (RX­100K). Record measured values
Turn off power and discharge capacitor. Check with ohmmeter (RX-100K).
Turn off power and manually rotate pump shaft
Check wiring for proper connections
Turn pump off, close isolation valve(s). Check fluid level
Remove strainer, screen or valve and inspect
Check tank conditions for cascading fluid or vortexing
Compare pump NPSH requirements to available NPSH at pump flow rate
Install pressure gauge, start pump, gradually close the discharge valve and read pressure at shutoff
Disassemble and inspect pump passageways
Check voltage at starter panel and motor
Cycle pump and measure amperage
Check current draw on each lead to the motor
Turn off power and disconnect wiring. Measure the lead-to-lead resistance with an ohmmeter (RX-1). Measure lead-to-ground values with an ohmmeter (RX-100K) or a megaohm meter. Record values
Check proper wiring and loose terminals
If no voltage at pump panel, check feeder panel for tripped circuits
Replace blown fuses or reset circuit breaker. If new fuses blow or circuit breaker trips, the electrical installation, motor and wires must be checked.
Replace burned heaters or reset. Inspect starter for other damage. If heater trips again, check the supply voltage and starter holding coil.
If no voltage, check control circuit fuses. If voltage, check holding coil for shorts. Replace bad coil.
Replace worn or defective parts or controls
If an open or grounded winding is found, remove motor and repair or replace
When the meter is connected to the capacitor, the needle should jump towards 0 ohms and slowly drift back to infinity ( ). Replace if defective
If shaft does not rotate easily, check coupling setting and adjust as necessary. If shaft rotation is still tight, remove pump and inspect. Disassemble and repair
Correct wiring
Provide submergence by increasing fluid level in tank or sump; alternatively by repositioning pump at lower level
Clean and replace strainer, screen and/or valves
Install baffle(s) in tank. Relocate inlet pipe. Decrease pump flow rate
Decrease pump flow rate and/or fluid temperature. Increase first-stage submersion
Convert measured pressure (in PSI) to head (in feet): (Measured PSI x 2.31 ft/PSI = _______ ft.) Refer to the specific pump curve for shutoff head for that pump model. If head is close to curve, pump is probably OK. If not, remove pump and inspect
Remove any foreign materials found
If voltage varies more than ±10%, contact power company. Check wire sizing
Increase heater size or adjust trip setting to a maximum of motor nameplate (full load) current
Must be within ±5%. If not, check motor and wiring. Rotating all leads may eliminate this problem
If an open or grounded winding is found, remove the motor, repair and/or replace
Tighten loose terminals. Replace damaged wire
Pump is bound
Defective capacitor. (Single-phase motors)
Motor overloads at higher ambient temperature than motor
Turn of power and manually rotate pump shaft
Turn off power and discharge capacitor. Check with ohmmeter (RX-100K)
Use a thermometer to check the ambient temperature near the overloads and motor. Record these values
If shaft does not rotate eaily, check coupling setting and adjust as necessary. If shaft rotation is still tight, remove pump and inspect. Disassemble and repair
When the meter is connected to the capacitor, the needle should jump towards 0 ohms and slowly drift back to infinity ( ). Replace if defective.
If ambient temperature at motor is lower than at overloads, especially where temperature at overloads is above 104°F (40°C), ambient-compensated heaters should replace standard heaters
Page 7
Notes
Page 8
Notes
Page 9
LIMITED WARRANTY
Products manufactured by GRUNDFOS PUMPS CORPORATION (Grundfos) are warranted to the original user only to be free of defects in material and workmanship for a period of 18 months from date of installation, but not more than 24 months from date of manufacture. Grundfos' liability under this warranty shall be limited to repairing or replacing at Grundfos' option, without charge, F.O.B. Grundfos' factory or authorized service station, any product of Grundfos manufacture. Grundfos will not be liable for any costs of removal, installation, transportation, or any other charges which may arise in connection with a warranty claim. Products which are sold but not manufactured by Grundfos are subject to the warranty provided by the manufacturer of said products and not by Grundfos' warranty. Grundfos will not be liable for damage or wear to products caused by abnormal operating conditions, accident, abuse, misuse, unauthorized alteration or repair, or if the product was not installed in accordance with Grundfos' printed installation and operating instructions.
To obtain service under this warranty, the defective product must be returned to the distributor or dealer of Grundfos products from which it was purchased together with proof of purchase and installation date, failure date, and supporting installation data. Unless otherwise provided, the distributor or dealer will contact the Grundfos factory or authorized service station for instructions. Any defective product to be returned to the factory or service station must be sent freight prepaid; documentation supporting the warranty claim and/or a Return Material Authorization must be included if so instructed.
GRUNDFOS WILL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, LOSSES, OR EXPENSES ARISING FROM INSTALLATION, USE OR ANY OTHER CAUSES. THERE ARE NO EXPRESS OR IMPLIED WARRANTIES, INCLUDING MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, WHICH EXTEND BEYOND THOSE WARRANTIES DESCRIBED OR REFERRED TO ABOVE.
Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages and some jurisdictions do not allow limitations on how long implied warranties may last. Therefore, the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights and you may also have other rights which vary from jurisdiction to jurisdiction.
Page 10
Grundfos Pumps Corporation • 3131 N. Business Park Avenue • Fresno, CA 93727
Customer Service Centers: Allentown, PA • Fresno, CA
Phone: (559) 292-8000 • Fax: (559) 291-1357
Canada: Oakville, Ontario • Mexico: Apodaca, N.L.
Visit our website at www.us.grundfos.com
L-SPK-TL-003 Rev. 4/01
PRINTED IN USA
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