INSTALLATION
INSTRUCTIONS
Submersible Pump Protector
MODEL SPP-235P
II_SPP-235P_A1
293 Wright Street, Delavan, WI 53115
(866) 9-PENTEK
BE SURE POWER IS DISCONNECTED PRIOR TO INSTALLATION!
FOLLOW NATIONAL, STATE AND LOCAL CODES.
The SPP-235P Single-phase Submersible Pump Protector is a pump monitor designed to protect
single-phase pumps from dry-well, dead-head, rapid-cycle, jammed impeller, and over/under
voltage conditions. The Submersible Pump Protector SPP-235P protects 5 to 15 HP, 230VAC
pumps. Typical applications include submersible pumps, centrifugal pumps, cooling pumps,
environmental pumps, residential water wells, commercial water wells, irrigation wells, and golf
course or other sprinkler equipment.
CONNECTIONS
NOTE: Use with UL/CSA listed overload or impedance protected pumps or motors only.
1. Mount the Submersible Pump Protector Model SPP-235P in a convenient location in or near
2. Connect a current transformer (CT) to the SPP’s terminals marked CT1 and CT2. (see Table
3. Connect the SPP’s terminals marked ‘L1’, ‘L2 IN’ and ‘L2 OUT’.
4. Refer to the appropriate wiring diagram for your specific application.
NOTE: One line from the fused disconnect must pass through the current transformer.
NOTE: The Submersible Pump Protector will not function without an external current
transformer. A UL Listed current transformer must be selected based on Table 1.
NOTE: The Submersible Pump Protector may not detect a dead-head (blocked pipe)
condition on applications where the pump is undersized f or a gi ven motor or f low restrictors
re used on high stage pumps or low yield wells. a
READ THESE INSTRUCTIONS ENTIRELY BEFORE INSTALLATION.
the pump control box. If the location is wet or dusty, a NEMA 3R, 4, or 12 enclosure should be
used. The Submersible Pump Protector must be protected by a fuse or circuit breaker.
for proper CT sizing). 1
• Typical wiring diagram – Figure 1
• Standard 3-wire control box – Figure 2
• Deluxe control box – Figure 3
*** WARNING ***
PROPER OPERATION REQUIRES FIELD CALIBRATION
2
Size Current CT
5-7 ½ HP 27.5 – 42.1 50:5
10 HP 51 75:5
15 HP 75 100:5
TABLE 1: Current Transformer Selection
FIGURE NO.1: Typical Wiring Diagram
3
4
OPERATION
The Submersible Pump Protector monitors pump load in amps and kilowatts. When the current
(amps) exceeds approximately 125% of calibrated current, or power (kW) drops below the
adjustable underload trip point, the Submersible Pump Protector—after the trip delay—will turn off
the pump. The Submersible Pump Protector will time through the restart delay, and then restart the
pump. The calibration is stored in permanent memory—it does not need to be r ecalibrated if
power is lost.
CALIBRATION
NOTE: The Submersible Pump Protector should
b
e calibrated during normal pumping conditions.
1. Turn the RESTART DELAY/ CALIBRATION knob
fully counter-clockwise to the CAL. position.
2. Apply power—the pump will run for approximately
10 seconds then shut off.
3. Set the RESTART DELAY/ CALIBRATION knob
to the desired restart delay (dry-well recovery
time)—the pump will turn on.
NOTE: If the Submersible Pump Protector immediately trips (blinking green) upon
completion of the calibration process, the cur rent transformer may be installed incorrectl y.
Swap the CT1 and CT2 wires on the terminal strip, then repeat the calibration process
beginning with Step #1.
CALIBRATING WHILE PUMPING
The Submersible Pump Protector can also be calibrated while the pump is running. Turn the
RESTART DELAY/ CALIBRATION knob to CAL. while pumping. Wait for the pump to turn off
(approximately 10 seconds), then adjust the RESTART DELAY/ CALIBRATION knob to the
desired setting.
SENSITIVITY
The Submersible Pump Protector has an adjustment knob to set the underload trip sensitivity.
Setting SENSITIVITY to the middle position (straight up) is equivalent to the standard underload trip
level. Adjust the SENSITIVITY knob to increase/decrease underload sensitivity up to approximately
10% of the standard trip. It may be necessary to increase the sensitivity if the Submersible Pump
Protector does not trip on dry-run or dead-head or it is known that the water level in the well is very
w relative to the pump’s capabilities. lo
WARNING: Decreasing the SENSITIVITY may compromise the Submersible Pump
Protector’s ability to detect dry-run and/or dead-head conditions.
RESET MODE / RESTART DELAY
Any restart delay can be by-passed by rotating the RESTART DELAY/ CALIBRATION knob to the
ESET position and back to the desired restart delay setting. R
NOTE: The restart delay setting can be changed at any time. The current and su bsequent
ips will follow the new restart delay setting. tr
The RESTART DELAY/ CALIBRATION knob can be placed in the RESET position for manual
reset. If the Submersible Pump Protector trips off in this mode due to a voltage or load problem, the
RESTART DELAY/ CALIBRATION knob must be rotated out of the RESET position to restart the
pump.
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RUN HOURS / FAULT HISTORY
The Submersible Pump Protector records pump run hours and the last 20 faults. These values can
be displayed by an Informer (see USING AN INFORMER
cleared on the Submersible Pump Protector. Read the following instructions fully before performing
he procedure. t
NOTE: Turn the SENSITIVITY knob completel y
o the right (clockwise) when directed. The knob must be turned in quick succession. t
To History: Reset Run Hours and Clear Fault
1. Remove power to the Submersible Pump Protector.
2. Set the RES TART DELAY/ CALIBRATION knob to RESET and the SENSITIVITY knob to the
middle (12:00) position.
3. Apply power to the Submersible Pump Protector—the CAL. LIGHT will turn on.
4. Turn the SENSITIVITY knob to the right—the CAL. LIGHT will turn off and the RUN LIGHT will
turn on.
5. Turn the SENSITIVITY knob to the left—both lights will turn on.
6. Turn the SENSITIVITY knob to the right.
7. After 10 seconds, the CAL. and RUN LIGHTS will blink twice indicating the run hours and fault
history have successfully been cleared.
to the left (counter-clockwise) or completel y
). Run hours and fault history can be
RAPID CYCLING
Rapid cycling is defined as more than 4 restarts in a 60-second period. The Submersible Pump
Protector is capable of detecting a rapid-cycle condition whether a control device, such as a
pressure switch, is installed before* or after it. Upon detecting either form of rapid cycling, the
Submersible Pump Protector will lock-out, preventing damage to the pump. To reset the
Submersible Pump Protector, remove and re-apply power.
RAPID CYCLING (Line-Side / Upstream)
Rapid cycling of the line side of the Submersible Pump Protector may be caused by several
naturally occurring conditions which are indistinguishable from true rapid cycling. For this reason,
once tripped, the Submersible Pump Protector will wait 30 minutes and restart. If the restart is
successful (the pump runs for more than one minute), the rapid cycle counter will reset to zero. If
the Submersible Pump Protector encounters rapid cycle 4 times without a successful restart, it will
lock-out and require a manual reset. To reset the Submersible Pump Protector, remove and re-
pply power. a
*Protection against rapid cycling of a control device installed before the Submersible Pump
Protector is disabled by default. Read the following instructions fully before performing the
rocedure to enable his feature. p
NOTE: Turn the SENSITIVITY knob completel y
to the right (clockwise) when directed. The knob must be turned in quick succession.
to the left (counter-clockwise) or completel y
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To Enable Line-Side/Upstream Rapid-Cycle Protection:
1. Remove power to the Submersible Pump Protector.
2. Set the RESTART DELAY/ CALIBRATION knob to RESET and the SENSITIVITY knob to the
middle (12:00) position.
3. Apply power to the Submersible Pump Protector —the CAL. LIGHT will turn on.
4. Turn the SENSITIVITY knob to the right—the CAL. LIGHT will turn off, RUN LIGHT will turn on.
5. Turn the SENSITIVITY knob to the left—both lights will turn on.
6. Turn the SENSITIVITY knob right—left—right—left—right.
7. After 2 seconds, the CAL. and RUN LIGHTS will blink once indicating line-side rapid-cycle
protection has been enabled.
(to disable, follow the same procedure)
RAPID CYCLING (Load-Side / Downstream)
Load-side rapid cycling of the pump will immediately result in a manual lock-out. The pump will not
restart automatically. To reset the Submersible Pump Protector, remove and re-apply power.
Note: Protection against rapid cycling of a control device installed after the Submersible Pump
Protector is always enabled. Disabling line-side detection will not disable load-side detection.
USING AN INFORMER
Submersible Pump Protector products are equipped with an infrared LED that will communicate to a
PENTEK Informer—a handheld, battery-operated, diagnostic tool. The Informer—when directed at
the Submersible Pump Protector—will display the model number; real-time voltage, current and
power; dry-well and overcurrent trip points; calibration voltage; restart delay setting and current
restart delay time; pump starts and total run time; last 20 faults; voltage, current, power, and total
run time at the time of each fault; highest/lowest voltage and current since calibration; and the CT
size if applicable. The Informer can be used on any single-phase Submersible Pump Protector
equipped with an infrared LED transmitter. Contact PENTEK for more information at 866-9PENTEK.
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TROUBLESHOOTING
V
RUN LIGHT CAL. LIGHT PROBLEM or FUNCTION CORRECTIVE ACTION
RUN:
On Steady Off
On Steady On Steady
Off On Steady
Off Off
Blinking Off
Off Blinking
Blinking
alternately
with the
CAL. LIGHT
Blinking in
unison with
the CAL.
LIGHT
Blinking
alternately
with the
RUN LIGHT
Blinking in
unison with
the RUN
LIGHT
Pump is running—or ready to run—
no problems in operation
CAL:
The Submersible Pump Protector
is in the calibration process.
CAL COMPLETE:
The Submersible Pump Protector
is calibrated; the RESTART
DELAY/ CALIBRATION knob was
left in the CAL. position. Pump is
off.
OFF / MANUAL RESTART:
The pump is not running. Either the
Submersible Pump Protector has
tripped on dry-run, dead-head, or
overcurrent while the RESTART
DELAY/ CALIBRATION knob was
in the RESET position or source
power is not present.
DRY RUN / DEAD HEAD:
The Submersible Pump Protector
has shut the pump off due to a dryrun or dead- head condition. The
unit is timing through the restart
delay and will try to restart.
OVERCURRENT:
The Submersible Pump Protector
has shut the pump off due to an
overcurrent condition. The unit is
timing through the restart delay and
will try to restart if line voltage is at
an acceptable level.
OLTAGE FAULT:
The Submersible Pump Protector
is preventing the pump from
starting due to voltage problems.
The voltage is being interrogated
and the unit will remain in this
mode until the voltage is at an
acceptable level.
RAPID CYCLE:
The Submersible Pump Protector
has shut down on rapid cycling.
Power must be removed and
reapplied to reset the unit.
None
None
Pump will restart as soon as
the RESTART DELAY/
CALIBRATION knob is rotated
out of the CAL. position.
If knob is in the RESET
position, rotate out of RESET—
If the CAL. light blinks, check
for an overcurrent condition. If
the RUN light blinks, look for a
dry-run or dead-head condition.
If no lights come on, check
incoming power for adequate
voltage.
Check for restricted flow or
inadequate supply of liquid.
Check for low or high voltage
or jammed pump impellers. If
these conditions do not exist,
recalibrate the unit while it is
drawing higher current (amps
should not exceed SFA).
If the unit remains in this state
for more than 5 seconds, check
for high or low voltage.
Check for a broken bladder in
the pressure tank (if used), or
check for a defective pressure
or float switch.
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PHYSICAL DIMENSIONS
FRONT VIEW
BOTTOM VIEW
4.05" (102.87)
4.50" (114.30)
5.26" (133.60)
2.17"
(55.12)
(74.42)
.375"
(9.53)
2.90"
(73.66)
2.93"
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SPECIFICATIONS
Functional Specifications
Adjustments/Settings
Overcurrent 125% of calibration point
Underload (dry-well) Adjustable (70-90% of calibrated run power)
Overvoltage 265VAC
Undervoltage 190VAC
Number of restarts allowed in 60
second period (rapid-cycling)
Trip Delay Times
Overcurrent 5 seconds
Dry-well 4 seconds
Restart Delay Times
Over/undervoltage 2 seconds
All other faults Manual, 2-225 minutes
Input Characteristics
Supply Voltage 230VAC
Load Range 5 to 15hp (external current transformer required)
Frequency 50/60 Hz (note: 50Hz will increase all delay timers by
Output Characteristics
Output Contact Rating-SPST 720VA @ 240VAC
General Characteristics
Ambient Operating Temperature -40° to 55°C (-40° to 131°F)
Maximum Input Power 5 W
Wire Gauge Solid or stranded 10 - 22AWG
Terminal Torque 13 in.-lbs.
Standards Passed
Electrostatic Discharge (ESD)
Surge Immunity
Safety Marks
ULC Listed UL508, C22.2 No. 14
Dimensions 2.90” H x 5.26” W x 2.93” D
Weight 14 oz.
Mounting Methods #8 screws
4
20%)
IEC 61000-4-2, Level 2, 4kV contact, 6kV air
IEC 61000-4-5, Level 4, 4kV line-to-line and line-to-
ground
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NOTES
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LIMITED WARRANTY
Goods manufactured/sold by Pentek are subject to the following Limited Warranty, which
is in lieu of, and excludes all other warranties, guarantees and conditions expressed or
implied, unless stated otherwise.
Goods are warranted to be free from defects in workmanship or material for a period of
5 years from the date of manufacture provided such goods have not been subjected to
misapplication, misuse, negligence or repairs by unauthorized persons.
This Warranty does not apply to any faulty performance caused by improper voltage
supply or improper product selection. Any faulty performance, actual or perceived, caused
by improper product selection, incorrect installation, changes in water supply or any factor
beyond the manufacturer's control, are not covered by this warranty.
Pentek shall not be liable for any consequential, incidental, or contingent damages
whatsoever.
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