Goulds Pumps SMVT User manual

Model SMVT
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
INSTRUCTION MANUAL
IOMGWSMVTR05-EN

2 SMVT Installation, Operation and Maintenance Manual

SMVT Installation, Operation and Maintenance Manual 1
Table of Contents
Introduction and Safety ........................................................................................................................2
Transportation and Storage ...................................................................................................................7
Product Description..............................................................................................................................8
Installation..........................................................................................................................................11
Commissioning, Startup, Operation and Shutdown ............................................................................20
Maintenance.......................................................................................................................................23
Troubleshooting..................................................................................................................................33
Appendix............................................................................................................................................34
Warranty.............................................................................................................................................38
Owners Information
Complete this information for your records.
Model number and serial number may be found
on the tag mounted to the motor adapter.
Model Number ___________________________
Serial Number ____________________________
Dealer ___________________________________
Dealer phone number ______________________
Date of purchase __________________________
Date of installation ________________________
Table of Contents

2 SMVT Installation, Operation and Maintenance Manual
I. Introduction and Safety
Introduction
Description
This manual provides instructions for the Installation, Operation and Maintenance of the
Goulds Water Technology Model SMVT pumps. This manual covers the standard product
plus common options that are available.
Requirement
This manual must be read and understood before installation and start-up. Goulds Water
Technology shall not be liable for physical injury, damage or delays caused by a failure
to observe the instructions for installation, operation and maintenance contained in this
manual.
Content
This instruction manual covers several different pump models that all have similar power
end configurations. Most assembly, disassembly and inspection procedures are the same for
all the pumps. However, where there are differences, they are called out separately within
the manual. The design, materials and workmanship incorporated in the construction of
Goulds Water Technology pumps makes them capable of giving long, trouble free service.
The life and satisfactory service of any mechanical unit, however, is enhanced and extended
by correct application, proper installation, periodic inspection, condition monitoring
and careful maintenance. This instruction manual was prepared to assist operators in
understanding the construction and the correct methods of installing, operating and
maintaining these pumps.
Key Topics
Transportation and Storage
Product Description
Proper Installation
Start up Procedures
Operation Procedures
Routine Maintenance
Pump Overhaul
Trouble Shooting
Identifying Spare or Repair Parts
Introduction and Safety

SMVT Installation, Operation and Maintenance Manual 3
Safety
It is extremely important that you read, understand, and follow the safety messages and
regulations carefully before handling a Goulds Water Technology product. They are pub-
lished to help prevent
• personal accidents and health problems
• damage to the product
• product malfunction
Observe all safety messages highlighted in other sections of this manual.
A pump is a pressure-containing device with rotating parts that can be dangerous.
Caution: You must observe the instructions for installation, operation, and main-
tenance contained in this manual. Failure to do so could result in physical injury,
damage, or delays.
Safety message levels
Table 1: Definitions
Safety message level Indication
Danger: Indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
Warning: Indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
Caution: Indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.
Note: Indicates a potential situation which, if not avoided,
may result in undesirable results or state. Indicates a
practice not related to personal injury.
Electrical Hazard: Indicates the possibility of electrical risks if
direction are not applied in a proper manner.
Environmental safety
Preventive measures for the working area
Always keep the pump station clean to avoid and/or discover emissions.
Recycling guidelines
Always recycle according to the guidelines listed below:
1. Follow local laws and regulations regarding recycling if the unit or parts are accepted by
an authorized recycling company.
2. If the first guideline is not applicable then return the unit or parts to the nearest Goulds
Water Technology representative.
Introduction and Safety (continued)

4 SMVT Installation, Operation and Maintenance Manual
Waste and emissions
Observe these safety regulations regarding waste and emissions:
• Properly dispose of all waste.
• Handle and dispose of the pumpage in compliance with applicable environmental
regulations.
• Clean-up all spills in accordance with safety and environmental procedures.
• Report all environmental emissions to the appropriate authorities.
Reference for electrical installation
For electrical installation recycling requirements, consult your local electric utility.
User health and safety
Bulk Material
• Anti-Galling lubricant (such as Dow Corning “MOLYKOTE”)
• Lubrication Oil
• Non-corrosive cleaning agents
• Grease (such as Armored AutoGroup “STP” or Dow Corning “111 Grease”) or a mixture
of equal parts non-petroleum hand soap and water
Rigging Equipment
• Mobile power hoist or traveling crane
• Suitable sling
• Clevises – for use with eyebolts (optional)
Hand Tools
• Impeller Shim (supplied with pump)
• Pipe wrenches
• Feeler gauges
• Set of mechanics tools including: files, wire brush, pliers, wire cutters and pocket knife
• Clean rags
• Dial indicator to assist in motor and pump alignment
• Torque wrench with sockets
• Rubber mallet
• Machinist Level
The working area
Observe these regulations and warnings in the working area:
• Always keep the work area clean.
• Pay attention to the chemical and physical characteristics of the gas and vapors present
in hazardous areas.
• Avoid all electrical dangers. Pay attention to the risks of electric shock or arc flash
hazards.
Product and product positioning requirements
Observe these requirements for the product and the product positioning:
• Never operate a pump unless safety devices are installed.
• Three-phase motors must have a properly sized starter with properly sized heaters
to provide overload and undervoltage protection. Single-phase motors have built-in
overload protectors.
• Never start a pump without the proper priming.
• Never run a pump below the minimum rated flow or with any suction or discharge
valve closed.
Introduction and Safety (continued)

SMVT Installation, Operation and Maintenance Manual 5
Electrical connections
Electrical connections must be made by authorized electricians in compliance with all
international, national, state and local rules.
Observe the following regulations and warnings for electrical connections.
• Make sure that the product is isolated from the power supply and can not be
energized by mistake. This rule applies to the control circuit as well.
• Make sure that the thermal contacts are connected to a protection circuit according
to the product approvals, and that they are in use.
Observe the following regulations for grounding connections.
Table 2: Grounding
Grounding regulation Comment
All electric equipment must be grounded. This rule applies to pumps as
well as monitoring equipment.
Precautions before work
Observe the following safety precautions before working with or in connection with the
product:
• Make sure that there are no poisonous gases within the work area.
• Provide a suitable barrier around the work area, for example a guard rail.
• Make sure that all safety guards are in place and secure.
• Make sure that the equipment is properly insulated when operating at extreme
temperatures.
• Allow all system and pump components to cool before you handle them.
• Make sure that you have a clear path of retreat.
• Make sure that the product cannot roll or fall over and injure people or damage
property.
• Make sure that the lifting equipment is in good condition.
• Use a lifting harness, a safety line, and a breathing device as required.
• Make sure that the product has been thoroughly cleaned.
• Make sure that a first-aid kit is close at hand.
• Check the explosion risk before welding or using electric hand tools.
Precautions during work
Observe the following safety precautions when working with or in connection with the
product:
• Never work alone.
• Stay clear of suspended loads.
• Always lift the product by its lifting device.
• Beware of the risk of a sudden start if the product is used with an automatic level
control.
• Beware of the starting jerk, which can be powerful.
• Rinse the components in water after disassembling the pump.
• Do not exceed the maximum working pressure of the pump.
Introduction and Safety (continued)

6 SMVT Installation, Operation and Maintenance Manual
• Do not open any vent or drain valves or remove any plugs while the system is
pressurized. Ensure that the pump is isolated from the system and that pressure is
relieved before you disassemble the pump, remove plugs, or disconnect piping.
• Always bear in mind the risk of:
• electrical accidents
• burn injuries
Clean chemicals from the eyes
1. Forcibly hold the eyelids apart with the fingers.
2. Rinse the eyes for at least 15 minutes. Use an eyewash or running water.
3. Seek medical attention.
Clean chemicals from the body
1. Remove contaminated clothing.
2. Wash the skin with soap and water for at least 1 minute.
3. If required, seek medical attention.
Product approval standards
Regular standards
All electrical ratings and performance of the motors comply with UL, CSA and NEMA
standards.
Product warranty
Personnel requirements
All work on the product must be carried out by certified electricians and Goulds Water
Technology authorized mechanics.
Goulds Water Technology disclaims all responsibility for work done by untrained and
unauthorized personnel.
Modification and spare parts
Modifications or changes to the product/installation should only be carried out after
consulting with Goulds Water Technology. Original spare parts and accessories authorized
by Goulds Water Technology are essential for compliance. The use of other parts can
invalidate any claims for warranty or compensation and explosion-proof approvals.
Warranty claim
For warranty claim, contact your Goulds Water Technology representative.
Introduction and Safety (continued)

SMVT Installation, Operation and Maintenance Manual 7
II. Transportation and Storage
Description
This section describes recommended methods for receiving, storing and handling the pump
prior to physical installation.
Receiving
The pump should be uncrated or unboxed when it is received so that it can be completely
inspected. Carefully check that everything is in good order. Make notes of damaged
or missing items on the receipt and freight bill. File any claims with the transportation
company as soon as possible.
Storage
Short Term: For storage of less than six months, the normal packaging procedures used by
Goulds Water Technology are designed to protect the pump during shipping. After receipt,
store in a covered and dry location.
Long Term: For storage of more than six months, preservative treatment of bearings and
machined surfaces will be required. Rotate the pump and motor shaft several times every
three months. Refer to driver manufacturers for their long term storage procedures. Store in
a covered, dry location.
Handling
Warning: Pump and components are heavy. Failure to properly lift and support
equipment could result in serious physical injury or damage to pumps. Steel toed
shoes must be worn at all times.
Use care when moving pumps. Lifting equipment must be able to adequately support the
pump assembly. Hoist pump using a suitable sling under the motor adapter as shown in
Figure 1. DO NOT lift the pump with the motor installed to the pump assembly.
Consult the motor manufacturer’s Installation, Operation, and
Maintenance manual supplied with your motor for proper handling
procedures for the motor assembly.
Figure 1: Proper Lifting
Transportation and Storage

8 SMVT Installation, Operation and Maintenance Manual
III. Product Description
Description
This section provides a general description of the Goulds Water Technology Model SMVT
and key engineering specifications.
Overview
The Goulds Water Technology Model SMVT pumps are surface mounted, multi-stage,
vertical turbine pumps.
Pump impellers are closed, shaft driven, and held in position by a positive-locking taper
collet.
Suction and discharge connections are ANSI standard 3 inch 125# or 250# and 4 inch
125# or 250# flange type.
Pumps are available with standard ODP or TEFC motors.
Intended Use
Commercial Applications:
Booster Units
High Rise Building Water Applications
HVAC
Municipal Applications:
Package Pump Stations
Booster Stations
Water Treatment Applications
Irrigation Applications:
Turf Irrigation
Golf Courses
Stadiums
Greenhouses/ Nurseries
Sprinkler Systems
Engineering Data
Torque Values
Table 3: Torque Values
Description Torque (ft.-lbs.)
Motor Bolts – 3, 5, 7.5 HP motors 20
Motor Bolts – 10 to 40 HP motors 45
Motor Bolts – 50, 60, 75 HP motors 70
Casing Bolts 120
Bowl Bolts 45
Coupling Bolts 28
Liquid Temperature:
Liquid temperature from -13ºF (-25ºC) to 150ºF (65ºC)
Note: Pump and piping should be protected from skin contact if temperature is less than
10ºC or higher than 40ºC
Product Description

SMVT Installation, Operation and Maintenance Manual 9
Maximum Working Pressure
Table 4: Maximum Working Pressure
Model Maximum Pressure
175 psi 400 psi
SM1 up to (3) stages more than (3) stages
SM2 up to (3) stages more than (3) stages
SM3 up to (3) stages more than (3) stages
SM4 up to (3) stages more than (3) stages
SM5 up to (4) stages more than (4) stages
SM6 up to (4) stages more than (4) stages
Starts per hour:
Table 5: Electric Data2
HP Motor Frame RPM Voltage Phase Hz Start/Hour
5182TC 230 1 270
184TC 230/460 3 165
7.5 182TC 230 1 210
213TC 3 150
10 213TC 1 210
215TC 135
15 215TC 105
20 254TC 150
256TC 75
25 256TC 135
284TSC 3500 60 30
30 284TSC
230/460 60
286TSC 330
40 286TSC 45
324TSC 30
50 324TSC 45
326TSC 25
60 326TSC 30
364TSC 25
75 364TSC 2
365TSC 2
2Electric data is based on Goulds Water Technology choice motors. Other manufacturer’s motors may have
different values.
Product Description (continued)

10 SMVT Installation, Operation and Maintenance Manual
Connections
The following table shows the discharge and suction sizes for each of the SMVT pumps.
Table 6: Pump Connection Sizes
Model and Staging Suction and Discharge Size
SM1 - up to (3) stages Standard 3 inch 125# ANSI Flange
SM1 - more than (3) stages Standard 3 inch 250# ANSI Flange
SM2 - up to (3) stages Standard 3 inch 125# ANSI Flange
SM2 - more than (3) stages Standard 3 inch 250# ANSI Flange
SM3 - up to (3) stages Standard 4 inch 125# ANSI Flange
SM3 - more than (3) stages Standard 4 inch 250# ANSI Flange
SM4 - up to (3) stages Standard 4 inch 125# ANSI Flange
SM4 - (4) stage Standard 4 inch 250# ANSI Flange
SM5 - up to (4) stages Standard 4 inch 125# ANSI Flange
SM5 - (5) and (6) stage Standard 4 inch 250# ANSI Flange
SM6 - up to (4) stages Standard 4 inch 125# ANSI Flange
Noise Level
The noise generated by a pump depends on different factors. Most important are: power,
speed and brand name of the motor, whether there is cavitation or not, operating point of
the pump, and handling of small quantities of air. A guide value for the sound pressure level
measured in dB (A) at a distance of 3 feet from the pump with a 2 pole motor operating
at 60 Hz in ideal circumstances with cold water is 78 dB(A) for pumps up to 5 hp, 83 to
85 dB(A) for pumps with motors ranging from 7.5 to 50 hp. For pumps with 4 or 6 pole
motors, the value can be decreased with +/- 8 dB(A).
Name Plate
Model #
The various versions of the SMVT are identified by a product code number on the pump
label. This number is also the catalog number for the pump. The meaning of each digit in
the product code number is shown in the Appendix. Not all combinations are possible;
consult your Goulds Water Technology distributor for specific requirements.
Performance
Performance curves for your Goulds Water Technology Model SMVT may be found in the
selection program available on www.xyleminc.com/brands/gouldswatertechnology. The
correct performance curve can be determined from the name plate model number as defined
above. You will need to know the pump model number.
Product Description (continued)

SMVT Installation, Operation and Maintenance Manual 11
IV. Installation
Description
This section covers the general information and cautions about installing your pump as well
as specific steps to take during installation.
Location
Locate the pump as near to the liquid source as practical and below the level of the liquid
for automatic self priming. If the pump must be above the liquid source, a foot valve must
be provided on the suction pipe.
Allow adequate space around the pump for servicing and ventilation.
Protect the pump and piping from freezing temperatures.
Provide other weather protection consistent with the motor enclosure rating. The maximum
ambient temperature for the pump is 104°F (40°C).
For installation at altitudes greater than 3,000 feet (914 meters), the pump selection should
be de-rated due to the difference in barometric pressure. Contact your Goulds Water
Technology distributor for assistance in selection.
Foundation
The unit must be securely affixed to a leveled concrete or metal base foundation that is
adequate to absorb vibration and to provide permanent, rigid support for the pump and
motor assembly. If the unit is to be installed on a concrete foundation, hold down bolts
should be sunk in concrete and aligned with the holes in the feet. When the concrete has
dried, tighten nuts to keep the pump firmly in position.
Your SMVT pump has been supplied with a rigid base pump body with two feet. The
mounting dimensions are shown in Figure 2.
Figure 2: Base Mounting Dimensions
Installation of Mechanical Seal to Pump Assembly
Your SMVT pump has been shipped with the pump assembly and mechanical seal
disassembled.
1. Remove the (2) coupling guards.
2. Lubricate the inside of the mechanical seal assembly (supplied with pump) with grease
(such as Armored AutoGroup “STP” or Dow Corning “111 Grease”) or a mixture of
equal parts non-petroleum hand soap and water. Be sure that there is an o-ring at the
back of the gland flange.
Installation

12 SMVT Installation, Operation and Maintenance Manual
3. Take care to make sure that the pump shaft is clean; it should be free of all burrs, oil, and
grease. The pump shaft should be completely dry before moving on to the next step.
4. To install the mechanical seal assembly, carefully slide it down the pump shaft until the
gland contacts the mounting surface on the top of the seal housing.
5. Install the (4) hex head bolts on the seal gland to the seal housing. See the “Engineering
Data” section on page 8 of this manual for the proper torque value.
6. Move on to the next section; “Installation of Motor to Pump Assembly”.
Installation of Motor to Pump Assembly
Your SMVT pump has been shipped with the pump assembly and motor disassembled.
1. With an adequately sized crane carefully lower the motor assembly onto the motor
adapter located on the top of the pump.
2. Secure the motor to the motor adapter with the (4) hex head bolts supplied with pump.
See the “Engineering Data” section on page 8 of this manual for the proper torque value.
3. Disassemble the coupling (supplied with pump) by removing the (6) socket head screws
and machine washers between the coupling halves (see Figure 3). Retain bolts and dowel
pin for reassembly.
Figure 3: Motor Coupling
Item Quantity Description
A 2 Coupling Half
B 6 Socket Head Cap Screw
C 6 Lock-washer
D 1 Dowel Pin
4. Take care to make sure that the pump and motor shafts are clean; they should be free
of all burrs, oil, and grease. Both the pump and motor shafts should be completely dry
before moving on to the next step.
5. Install the dowel pin on the pump shaft and loosely assemble the shaft coupling. Do not
tighten the coupling at this point; it should be left loose enough to receive the motor
shaft in the following section.
6. Insert the impeller shim (supplied with the pump) between the shaft coupling and seal
gland. This will lift the shaft/impellers to the running position.
7. Very lightly tighten the (2) socket head cap screws on the pump end of the coupling (refer
to Figure 4). Tighten the coupling evenly; ensure that the coupling is symmetrical on both
the pump and motor shafts. Do NOT torque the cap screws in this step.
Installation (continued)

SMVT Installation, Operation and Maintenance Manual 13
Figure 4: Coupling Socket Head Screws
8. Very lightly tighten the remaining (4) socket head screws on the coupling. Tighten the
coupling evenly; ensure that the coupling is symmetrical on both the pump and motor
shafts. Do NOT torque the cap screws in this step.
9. Torque the socket head cap screws on the coupling. Refer to Figure 5 for the proper
torque pattern. See the “Engineering Data” section on page 8 of this manual for the
proper torque value.
Figure 5: Coupling Torque Pattern Figure 5a: Run Out Measurement Location
10. Remove the impeller shim and retain for future use.
11. Visually inspect the gaps between the coupling to ensure they are symmetrical on both
sides and consistent throughout the length of the coupling.
12. Inspect run out of the shaft between the bottom of the coupling and the mechanical seal
as shown in Figure 5a. If the run out exceeded 0.005”, the coupling must be adjusted. It
is usually most effective to adjust the four bolt section of the coupling.
13. Tighten the set screws on the seal gland. See the “Engineering Data” section on page 8 of
this manual for the proper torque value.
14. Install the (2) coupling guards.
Piping
General: Guidelines for piping are given in the “Hydraulic Institute Standards” and should
be reviewed prior to installation.
Warning: Never draw piping into place by using force on the suction and
discharge connections of the pump. This may impose dangerous strains on the
unit causing misalignment, poor operation and physical injury and damage to the
equipment.
1. All piping must be supported independently of and line up naturally with the pump suction
and discharge. It MUST NOT place piping loads on the pump.
2. Piping should be no smaller than the pump’s suction and discharge connections and kept as
short as possible, with minimal fittings to minimize friction losses.
Installation (continued)

14 SMVT Installation, Operation and Maintenance Manual
3. DO NOT connect piping to pump until pump and/or driver are securely fastened to a
supporting structure.
4. When pumping liquids at elevated temperatures, it is recommended that expansion loops or
joints be used in the suction and discharge piping. Refer to Figure 6 for correct placement
to avoid pump strain or misalignment due to linear expansion of piping.
Figure 6: Correct Placement of Expansion Joint
5. The piping should be arranged to permit pump isolation on both the suction and discharge
sides so that the pump can be drained during maintenance and repair.
6. Carefully clean all pipe parts, valves and fittings and pump branches prior to assembly.
7. All pipe joints MUST be airtight.
8. Proper placement of any temperature probes should be at the top end of the pump
unit casing in one of the provided ports. Ports will come from factory plugged. Proper
temperature probe location is shown in Figure 7.
Figure 7: Correct Placement of Temperature Probes
Suction Piping
Warning: NPSH available must always exceed NPSH required by the pump. For
suction lifts over 10 feet (3 meters) and liquid temperatures over 120°F (49°C),
consult the performance curve for your pump to determine NPSH required.
Properly installed suction piping is a necessity for trouble-free pump operation. Suction
piping should be flushed BEFORE connection to the pump.
1. Use of elbows close to pump suction should be avoided. There should be a minimum of two
pipe diameters of straight pipe between elbow and suction inlet (Reference Figure 8). All
elbows should be long-radius.
Installation (continued)

SMVT Installation, Operation and Maintenance Manual 15
Figure 8: Piping Elbows
2. Use suction pipe that is one or two sizes larger than the pump suction with a reducer at the
suction. Suction piping should never be smaller diameter than the pump suction.
3. Reducers should be eccentric at the pump suction with sloping side down and horizontal
side at the top (Reference Figure 9).
Figure 9: Eccentric Reducer
4. Suction strainers, when used, must have a net “free area” of at least three times the suction
pipe area.
5. Separate suction lines are recommended when more than one pump is operating from the
same source or supply.
Suction Lift Conditions
If pump is to be installed above the liquid source, the following MUST be provided:
1. No part of the suction piping can be above the pump suction (to avoid air pockets).
2. Suction piping must slope upwards to the pump on any horizontal pipe sections.
3. All joints MUST be airtight.
4. A means of maintaining prime during intermittent duty, such as a foot valve, must be
provided.
5. The suction strainer or suction bell MUST be at least three times the diameter of the
suction.
6. Ensure that the size and minimum submergence over the suction inlet is sufficient to prevent
air from entering the pump through a suction vortex. See typical intake piping arrangements
in Figures 10-13.
Installation (continued)

16 SMVT Installation, Operation and Maintenance Manual
Figures 10-13: Typical Piping Arrangements
Suction Head (Flooded Suction) Conditions
If pump is to be installed below the liquid source, the following MUST be provided:
1. An isolation valve should be installed in the suction line at least two pipe diameters from the
pump suction to permit closing the line for pump maintenance.
WARNING: Do not use the isolation/gate valve to throttle the pump as this
may cause loss of prime, excessive temperatures and damage to pump, voiding
warranty.
2. Keep suction pipe free from air pockets.
3. Piping should be level or slope gradually downward from the source of supply.
4. No portion of the piping should extend below pump suction.
5. The size of the entrance from the supply should be one or two sizes larger than the suction
pipe.
6. The suction pipe must be adequately submerged below the liquid surface to prevent vortices
and air entrainment at the supply. See above illustrations.
Discharge Piping
1. Isolation and check valves should be installed in the discharge line. Locate the check valve
between the isolation valve and the pump. This will permit inspection of the check valve.
The isolation valve is required for priming, regulation of flow and for inspection and
maintenance of the pump. The check valve prevents pump or seal damage due to reverse
flow through the pump when the driver is off.
2. Increasers, if used, should be placed between the pump and check valves.
3. Cushioning devices should be used to protect the pump from surges and water hammer if
quick closing valves are installed in the system.
Installation (continued)
H min.
DD
H min.
D D
1.5D
min.
3.0D
min.
H min.
D min.
2
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
H = Min. Submergence in feet
H
V
V = Velocity in feet per second
= GPM x 0.321
Area
GPM x 0.4085
D
2
1 2 3 4 5 6 7 8 9 10111213141516
Figure 10
Figure 12
Figure 11
Figure 13

SMVT Installation, Operation and Maintenance Manual 17
Typical Plumbing and Installation
Figure 14: Typical Plumbing and Installation
Final Piping Check
After connecting the piping to the pump, rotate the motor shaft to make sure that there is
no binding.
Wiring
Warning: DISCONNECT AND LOCKOUT ELECTRICAL POWER BEFORE
INSTALLING OR SERVICING PUMP.
Warning: Install ground and wire according to local and National Electrical
Code requirements.
Warning: Install an all leg electrical power disconnect switch near the pump.
Warning: Electrical supply MUST match motor’s nameplate specifications.
Incorrect voltage can cause fire, damage the motor and void the warranty.
WARNING
Hazardous voltage
can shock, burn or
cause death.
Installation (continued)

18 SMVT Installation, Operation and Maintenance Manual
Warning: Motors without built-in protection MUST be provided with contactors
and thermal overloads for single phase motors, or starters with heaters for three
phase motors. See motor nameplate.
Warning: Motors equipped with automatic thermal protectors open the motor’s
electrical circuit when an overload exists. This can cause the pump to start
unexpectedly and without warning.
• Use only stranded copper wire to motor and ground.
• Wire size MUST limit the maximum voltage drop to 10% of the motor nameplate voltage at
the motor terminals.
• The ground wire MUST be at least as large as the wire to the motor.
• Wires should be color coded for ease of maintenance.
• Follow motor manufacturer’s wiring diagram on the motor nameplate or terminal cover
carefully.
• Three phase motors require all-leg protection with properly sized magnetic starters and
thermal overloads.
Warning: Failure to permanently ground the pump, motor and controls before
connecting to electrical power can cause shock, burns or death.
Connect the electrical leads to the motor as follows:
Single Phase Motors
1. Connect the BLACK wire to the BLACK motor lead.
2. Connect the WHITE wire to the WHITE motor lead.
3. Connect the GREEN wire to the GREEN motor lead.
Three Phase Motors
See Figure 15 for three-phase wiring diagrams.
Hazardous machinery
can cause personal
injury or death.
WARNING
Installation (continued)