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HYD2428 (11-13-23)
pentair.com
SUBMERSIBLE
WASTEWATER MOTOR
FIELD TEST PLAN
©2023 Pentair. All Rights Reserved.
HYD2428 (11-13-23)
2 HYD2428 (11-13-23)
SAFETY INFORMATION
SAFETY SYMBOLS
This is the safety alert symbol. When you see this symbol on your
pump 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 serious personal
injury, death or major property damage if ignored.
warns about hazards that can cause serious personal
injury, death or major property damage if ignored.
warns about hazards that will or can cause minor
personal injury or property damage if ignored.
The word
NOTICE
: indicates special instructions that are important
but not related to hazards.
California Proposition 65 Warning
This product and related accessories contain
chemicals known to the State of California to cause cancer, birth
defects or other reproductive harm.
GENERAL SAFETY
Do not touch an operating motor. Modern
motors can operate at high temperatures. To avoid burns
when servicing pump, allow it to cool for 30 minutes after
shutdown before handling.
Follow all applicable local and state codes and regulations.
Submersible pumps are not approved for and should not be
used in swimming pools, recreational water installations,
decorative fountains or any installation where human
contact with the pump fluid is common. Pump is designed
for municipal and commercial wastewater applications.
Keep safety labels in good condition, replacing any missing
or damaged labels.
DO NOT run the pump dry. Dry running can overheat the
pump, (causing burns to anyone handling it) and will void the
warranty.
The pump is permanently lubricated. No oiling or greasing
is required in normal operation.
Periodically inspect pump and system components.
Wear safety glasses at all times when working on pumps.
Keep work area clean, uncluttered and properly lighted.
Store all unused tools and equipment.
DO NOT use to pump flammable liquids.
RISK OF FIRE OR EXPLOSION. Can cause
severe personal injury, property damage or death. Do not
smoke or use open flames in or around this system.
CUTTING RISK. Risk of serious cutting or
amputation exists. Use caution as liner plate is extremely
sharp. Always keep fingers and hands away from cutting
profiles. Disconnect all power sources prior to servicing
pump. Pump may start without warning.
RISK OF ASPHYXIATION. Installer(s) and/or
service personnel must use proper Personal Protective
Equipment and follow OSHA 29 CFR 1910.146 or OSHA 29
CFR 1926. Pump may be installed in a location classified as
a confined space.
BIOHAZARD RISK. Once wastewater source
has been connected to system, Biohazard Risk exists.
Installer(s) and/or service personnel must use proper
personal Protective Equipment and follow handling
procedures per OSHA 29 CFR 1910.1030 when handling
equipment after wastewater source has been connected to
system.
NOTICE: FM rated models are only to be used in 60hz
applications.
ELECTRICAL SAFETY
When installing, operating, or servicing this pump, follow the safety
instructions listed below.
ELECTROCUTION HAZARD: Must be installed
by a qualified professional. Disconnect all electrical power
before attempting service.
DO NOT modify the cord. When wiring to a system control,
connect ground lead to the system ground.
DO NOT splice the electrical power cord.
DO NOT allow the power leads on the end of the electrical
cords to be submerged.
DO NOT handle or service the pump while it is connected
tothe power supply.
A water test must be taken before installation
of any water treatment equipment. The water quality can
significantly influence the life of your system. You should
test for corrosive elements, acidity, total solids and other
relevant contaminants, including chlorine and treat your water
appropriately to ensure satisfactory performance and prevent
premature failure.
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HYD2428 (11-13-23)
SUBMERSIBLE WASTEWATER MOTOR FIELD TEST PLAN
- Risk of severe electrical shock or electrocution. May result in serious injury or death or fire hazard.
Only qualified personnel may install this system. Reasonable care and safe methods relating to the installation and operation of this
product should be practiced. NFPA 70/National Electric Code (NEC) or local codes must be followed. System must be properly grounded
Tools Required:
Multi-Meter, Clamp-on Amp meter, Meg-Ohm meter, screw drivers, small hand tools, lock-out/tag-out devices.
1. STATION DATA:
Address:
b. Contacts:
c. Condition of station:
d. Reason for inspection:
e. Date of inspection:
2. UNIT DATA:
Serial Number:
Model & Size:
Nameplate info:
3. Are you a qualified electrician?
If yes proceed, if no, stop
4. Is Station power supply 3 phase or 1 phase?
a. For 1 phase - skip to step 8
4. Current draw test – 3 phase.
a. Power off H-O-A switch in off position – open cabinet door
b. Obtain motor Full Load AMPS from motor nameplate
information, see panel data
c. Place clamp on amp meter on one motor lead
d. Place H-O-A switch in H position and read amps, record.
e. Repeat for other two leads.
f. Is current draw within nameplate specification?
i. Yes – no problem
ii. No- Motor shorted or grounded or physically locked
up – go to step 5
g. Is current balanced across all 3 legs – or is no current flow
present on 1 or more legs?
i. Yes – No Problem
ii. No – Motor windings likely open or grounded, go to step 5
5. Motor resistance to ground test –. Use Meg ohm meter – set
on 500 volts
a. Disconnect station power, turn off breaker(s), lock-out/tag-
out, make safe.
b. Mark and remove motor leads T1, T2, T3, Heat Sensor and
Seal Leak probe(s)
: IF T1, T2, T3 are not re-installed in the same
locations, rotation will be reversed, potentially resulting in
damage to pump and/or other system components.
c. Connect ground lead of meter to a good ground in panel
d. Test each motor lead separately against ground, test the
individual seal probe(s) against ground, test individual heat
sensors against ground. Do NOT TEST ACROSS HEAT SENSOR
LEADS. HEAT SENSOR CAN BE DESTROYED.
e. Is resistance to ground greater than local code or Ieee-43
Standard (1 megohm + 1 meg per 1000 motor volts, i.e. for a 460
volt motor 1 meg + 460/1000 = 1.46 Meg-Ohms
i. Was resistance to ground greater than minimum
specification?
1. No – motor grounded – pull motor for service
2. Yes - Go to step 6.
SUBMERSIBLE WASTEWATER MOTOR FIELD TEST PLAN
1101 Myers Parkway
Ashland, OH 44805
Ph: 855.274.8947
Fx: 800.426.9446
490 Pinebush Road, Unit 4
Cambridge, Ontario, Canada N1t 0a5
Ph: 800.363.7867
Fx: 888.606.5484
pentair.com/hydromatic
6. Motor resistance test for shorts or opens. Use VOM Ohm
Meter set on lowest scale.
a. Use Ohm meter, read motor resistance
i. connect leads across black and white motor leads,
record resistance.
ii. Repeat for black to red and black to white.
iii. Are all 3 combinations balanced resistance?
1. Yes – confirm motor resistance with O&M manual or
RFT for specifications
2. No – motor is open or shorted. Verify continuity to
determine if open. Pull pump and motor for service.
iv. connect leads across heat sensor leads.
1. Are heat sensor contacts Closed (less than .5 ohms)?
a. Yes – Go to 5
b. No – heat sensor open, Pull pump and motor for
service.
7. If all above checks are complete and no other electrical
a. Pull pump and motor for Service.
8. Current draw test 1 (single) phase.
a. Power off, H-O-A switch in off position – open cabinet door
b. Obtain motor Full Load AMPS from motor nameplate
information, see panel data
c. Place clamp on amp meter on BLACK (COMMON) motor lead
d. Place H-O-A switch in H position and read amps, record.
e. Is current draw within nameplate specification?
i. Yes – no problem
ii. No- Motor shorted or grounded or physically locked up –
go to step 7
9. Motor resistance to ground test – 1 Phase –. Use Meg ohm
meter – set on 500 volts
a. Disconnect station power, turn off breaker(s), lock-out/tag-
out, make safe.
b. Mark and remove motor leads B, W, R, Heat Sensor and Seal
Leak probe(s)
c. Connect ground lead of meter to a good ground in panel
d. Test each motor lead separately against ground, test the
individual seal probe(s) against ground, test individual heat
sensors against ground. Do NOT TEST ACROSS HEAT SENSOR
LEADS. HEAT SENSOR CAN BE DESTROYED.
e. Is resistance to ground greater than local code or IEEE-43
Standard (1 megohm + 1 meg per 1000 motor volts, i.e. for a 230
volt motor 1 meg + 230/1000 = 1.23 Meg-Ohms
i. Was resistance to ground greater than minimum
specification?
1. No – motor grounded – pull motor for service
2. Yes - go to Step 8
10. Motor resistance test for shorts or opens – 1 Phase. Use
VOM Ohm Meter set on lowest scale.
a. Disconnect station power, turn off breaker(s), lock-out/tag-
out, make safe
b. Mark and remove motor leads B,W,R, Heat Sensor and Seal
Leak probe(s)
c. Use Ohm meter, read motor resistance
i. connect leads across black and white motor leads,
record resistance.
ii. Repeat for black to red and white to red combinations.
iii. Is B-W lowest, B-R middle and W-R Highest Reading?
1. Yes – confirm motor resistance with O&M manual or
RFT for specifications. If correct, continue testing
2. No – one or more of the windings is open or shorted.
Verify continuity to determine if open. Pull pump and
motor for service.
iv. connect leads across heat sensor leads.
1. Are heat sensor contacts Closed (less than .5 ohms)?
a. Yes – Go to 9
b. No – heat sensor open, Pull pump and motor
for service.
11. If all above checks are complete and no other electrical
a. Pull pump and motor for Service.
12. End Test Plan.
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©2023 Pentair. All Rights Reserved. HYD2428 (11-13-23)
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