Franklin Electric SubDrive Duplex Alternator User manual
Installation Manual
SubDrive Duplex
Alternator
Contents
Descriptions and Features.......................................3
Included Items ................................................4
How It Works................................................5-6
Before Getting Started ..........................................6
Controller Location Selection ....................................7
SubDrive Duplex Alternator Quick Reference Guide .................8
Installation Procedure ..........................................9
Wiring Connections ........................................10-13
Start-Up and Operation .....................................13-14
Mounting Dimensions .........................................15
Accessories..................................................15
Diagnostic Fault Codes ........................................16
Specifications ................................................17
Appendix
1. Duplex Inline Constant Pressure Quick Reference Guide ..........18
Tables
1. SubDrive, MonoDrive, and Inline Models .........................3
Figures
1. Mounting Screws ............................................9
2. Drive Sensor Cable Connections ..............................10
3. Pressure Sensor Connections.................................11
4. Alarm Connections ..........................................13
SubDrive Duplex Alternator
SubDrive Duplex Alternator
3
Model Name P a r t N u m b e r Use with SubDrive Series
SubDrive Duplex
Alternator
5850012000 5870203380 SubDrive75 NEMA 1
5870203384 SubDrive75 NEMA 4
5870204100 SubDrive100 NEMA 1
5870204104 SubDrive100 NEMA 4
5870204150 SubDrive150 NEMA 1
5870204154 SubDrive150 NEMA 4
5870206300 SubDrive300 NEMA 4
5870203223 SubDrive2W
5870203110 MonoDrive NEMA 1
5870203114 MonoDrive NEMA 4
5870204110 MonoDriveXT NEMA 1
5870204114 MonoDriveXT NEMA 4
90401101 Inline 1100
90411101 Inline CP
Table 1: SubDrive and MonoDrive Models
Note: SubDrive Duplex Alternator will work with any combination of the listed
Franklin Electric SubDrives/MonoDrives.
Descriptions and Features
The Franklin Electric SubDrive Duplex Alternator allows for two Franklin Electric
SubDrive units to operate on the same water system and share the work load
equally. The Alternator will alternate between the two SubDrive units when the
dened amount of run time has been reached. The Alternator is specically
designed for use with Franklin Electric SubDrive products (see Table 1 above).
Key features of the Alternator include the following:
• Works with entire SubDrive
product family
• Selectable alternate timing
• Pump status indicator lights
• Fault detection
• Fail safe operation
• Manual override push-button
• Alarm circuit contacts
• NEMA 4 enclosure
• Low voltage wiring connections
4
SubDrive Duplex Alternator
4
Included Items
A. Controller Unit
B. Sensor Cable (Pressure Sensors, 4-conductor)
C. Sensor Cable (SubDrives, 2-conductor) X2
D. Mounting Brackets
E. Outdoor Rated 120 VAC/12 VAC Transformer
F. Transformer Output Cable
G. Rubber Plug
H. Installation Manual
Installation Manual
SubDrive Duplex
Alternator
A
B
C
D
F
E
G
H
4
SubDrive Duplex Alternator
4 5
How It Works
The Franklin Electric SubDrive Duplex Alternator is designed to be part of two
independent SubDrive systems. Below is an example of a typical Alternator
System.
Alternating SubDrive Systems
The Alternator controls which drive is running the system by determining which
pressure sensor each drive sees. The two pressure sensors in the system must
have at least a 3 psi differential. The drive that uses the high set sensor will be in
control of supplying water to the system. The other drive will be on the lower set
sensor and will act as a backup. In the event that the primary drive cannot keep
up with the water demand, the backup drive will automatically start and provide
additional water. After the primary drive has reached its dened amount of run
time, the Alternator will interchange the pressure sensors, thus causing the two
drive units to switch roles.
System Diagnostics
In addition to alternating the two drive systems, the Alternator monitors the
two systems to see if they are meeting the water demand as expected. If a
system is not meeting the water demand as expected, the Alternator will lock
the remaining system in as the primary system, declare a ash code indicating
what kind of fault was found, close the alarm contacts, and not allow further
alternation until the fault is cleared.
Pressure Sensors
SubDrive 1 SubDrive 2
Pressure Sensor
Cables
Duplex Alternator
Motor Cables
SubDrive Pressure
Sensor Connections
Pressure Tank
To Power Supply To Power Supply
(see Quick Reference Guide on
pg. 8 for more detail on plumbing)
6
SubDrive Duplex Alternator
6
Fail Safe Operation
The Alternator is designed so that both SubDrive units are always linked to one
pressure sensor or the other. If the Alternator should fail, the system will turn into
a lead-lag system without the alternate function. Therefore, water will still
be delivered even if the Alternator should fail.
Additional Features
The Alternator has a manual override button for selecting which SubDrive unit
should be the primary system. The Alternator also has four different (push
button) selectable timing modes ranging from 1 hour to 24 hours. These timing
modes are based on the run time of the SubDrive unit. When a unit has run
the selected amount of time, the Alternator automatically interchanges the
primary and backup systems. In addition, the Alternator can be used with any
combination of SubDrive products from Franklin Electric; one model ts all!
s WARNING
!
For the indoor/outdoor transformer note the following:
Risk of fire. If installation involves running wiring through a building
structure, special wiring methods are needed. Consult a qualied electrician.
Not for use with dimmers.
Before Getting Started
s ATTENTION
!
This equipment should be installed by technically qualied personnel.
Installation must comply with Franklin Electric’s recommendations, national
and local electrical codes. Failure to do so may result in electrical shock,
re hazard, unsatisfactory performance, or equipment failure. Installation
information is available through pump manufacturers and distributors, or
directly from Franklin Electric at our toll-free number 1-800-348-2420.
s CAUTION
!
Use the SubDrive Duplex Alternator only with Franklin Electric SubDrive
units as specied in this manual (see Table 1). Use of this unit with Variable
Frequency Drives (VFDs) from other manufacturers may result in damage to
both sets of electronics.
6
SubDrive Duplex Alternator
6 7
Controller Location Selection
The following recommendations will help in the selection of the proper location
of the Alternator unit.
1. A tee is recommended for mounting the two pressure sensors at
one junction. If a tee is not used, the pressure sensors should
be located within 6 feet (1.8 meters) of the pressure tank to
minimize pressure uctuations. The distance between the
pressure sensors should be kept to a minimum. There should be
no elbows between the tank and the pressure sensors.
2. The unit should be mounted on a sturdy supporting structure
such as a wall or supporting post.
3. When installed properly, the Alternator enclosure is suitable for
indoor or outdoor installations (see Installation Procedure section
for details pg. 9).
4. The Alternator should only be mounted with the wiring end
oriented downward. The controller should not be placed in
direct sunlight.
5. The mounting location should have access to 115 VAC electrical
supply. For outdoor installations the indoor/outdoor transformer
must be connected to a GFCI outlet and follow all National,
State, and Local electrical codes. Ensure that requirements of
NEC 406.8 are met.
6. To assure maximum weather protection, the unit must be
mounted vertically with the cover snaps engaged.
CORRECT INCORRECT
Sensor Cables from
Pressure Sensors
Power Supply
from Transformer
Sensor Cables to Drives
Sensor Cables from
Pressure Sensors
Power Supply
from Transformer
Sensor Cables to Drives
8
SubDrive Duplex Alternator
8
Quick Reference Guide SubDrive Duplex Alternator
Tank Pre-charge
Inflation Valve
Pressure Gauge Pressure
Sensor
(To Residence)
Pressure
Relief Valve
Discharge into
drain rated for
max pump output
at relief pressure.
Drain Valve
Sensor Cable
Supplied
Pump 1 Pump 2
Motor 1
PRESSURE
SENSORS
12 VAC DRIVES
1212
PS-HI PS-LO SD1 SD2
12 1 2
ALARM
24VAC 1A MAX
24 VDC 0.5A MAX
Drive Sensor
Cables
GFCI Outlet
Drive 2
Drive 1
Motor 2
To
Power
Source
To
Power
Source
Outdoor outlet cover
for outdoor use
Motor Cable
Motor Cable
*Pressure
Sensor
*
* When installing an Alternator with a
SubDrive 300, do not hook up the pressure
shut-off sensor to the Alternator. Only hook
up the pressure sensors to the Alternator.
8
SubDrive Duplex Alternator
8 9
Installation Procedure
1. Disconnect electrical power at the main breaker.
2. Drain the system (if applicable).
3. Install the two SubDrive or Inline units per their installation instructions.
4. Install the two pressure sensors on a tee downstream of the
pressure tank (the pressure tank should be between the pressure
sensors and the pump). The sensors have a ¼-18 National Pipe
Thread (NPT) connection.
5. Mount the Alternator unit in a suitable location using four
mounting screws (not included) as shown in Figure 1 below.
Figure 1: Mounting Screws
Mounting Screw Locations
(User Supplied Quantity 4)
Rear View
Front View
Note: For installation procedures for the Duplex Inline Constant Pressure
System refer to the Duplex Inline Constant Pressure System Quick Reference
Guide (Appendix 1).
10
SubDrive Duplex Alternator
10
Wiring Connections
1. Verify that the power has been shut off at the main breaker.
2. Open the cover to the Alternator.
3. Drive Connections
Connect a two-conductor pressure sensor cable from Drive 1 to the
Alternator’s terminal block labeled SD1 on the right side. The red and
black wire connections are interchangeable. (See Figure 2 below).
Whichever Drive unit is connected to the SD1 terminal will be the primary
system rst. The Drive unit connected to the SD2 terminal will be the
backup system rst.
A. If connecting to a SubDrive300, use the supplied two-conductor
pressure sensor cable. Cut the terminals off both ends of the red
and black leads from the existing four-conductor cable. Leave
only the Green and White leads linking the pressure shut-off
switch to its connections on the SubDrive300.
B. For all other SubDrives, cut off the quick connect ends and strip
the wire to make a two-conductor cable with stripped leads at
both ends.
4. Repeat step 3 for Drive 2, but connect Drive 2’s pressure sensor cable to
the Alternator’s terminal block labeled SD2 on the right side.
Figure 2: Drive Sensor Cable Connections
PRESSURE
SENSORS
12 VAC DRIVES
1212
PS-HI PS-LO SD1 SD2
12 1 2
ALARM
24V-1A
SubDrive
12
ON
1234
SW1
Alternator
PRESSURE
SENSORS
12 VAC DRIVES
1212
PS-HI PS-LO SD1 SD2
12 1 2
ALARM
24V-1A
Alternator
SubDrive300
PRESSURE
SENSOR SHUT-OFF
SW2 SW1
To Pressure Shut-off Switch
PRESSURE
SENSORS
12 VAC DRIVES
1212
PS-HI PS-LO SD1 SD2
12 1 2
ALARM
24V-1A
Alternator
SubDrive300
PRESSURE
SENSOR SHUT-OFF
INT
FAN
INV
FAN
PFC
FAN
NO NO
COM
RELAY
SW2 SW1
O
N
(Cut Black and Red wire on both end only if using SubDrive300)
To Pressure Shut-off Switch
(Cut black and red wires; leave only
the green and white connected to
the pressure shut-off switch.)
Note: If using a NEMA 4 the quick connects or stripped leads may be used.
(A) (B)
10
SubDrive Duplex Alternator
10 11
5. Power Supply Connections.
A. Run the output cable from the indoor/outdoor transformer into
the Alternator through the center liquid tight strain relief (this is
the strain relief with the largest diameter).
B. Connect the output cable’s stripped leads to the terminal block
labeled 12 VAC.
C. Connect the other end of the output cable to the indoor/
outdoor transformer’s secondary winding (the two
prong connector).
D. Either plug the transformer into a GFCI protected 115 VAC
outlet or cut off the plug and strip the wires to connect the
stripped leads to a 115 VAC power supply. If using a GFCI
protected outlet follow the NEC 406.8 guidelines for protecting
the outlet from the environment.
Note: The transformer is rated for use indoor or outdoor so it can be mounted in
any convenient location.
6. Open Circuit Check. After completing steps 1-5 do the following:
A. Apply power to the Alternator without applying power to
the drives.
B. The indicator lights should all be OFF except for the orange
“1 hour” switching interval light. If the Alternator’s red light
ashes, it means that there is an open circuit to one of the
drives (see Diagnostic Fault Codes for specic ash code
meaning pg. 16).
C. Correct the open circuit; if one is found. The Alternator will
stop ashing the red light when the open circuit is corrected.
D. Disconnect power to the Alternator and continue to step 7.
Red
Blue Green
White
Pressure Sensor High Pressure Sensor Low
PRESSURE
SENSORS
12 VAC DRIVES
1212
PS-HI PS-LO SD1 SD2
12 1 2
ALARM
24V-1A
PRESSURE
SENSORS
12 VAC DRIVES
1212
PS-HI PS-LO SD1 SD2
12 1 2
ALARM
24VAC 1A MAX
24 VDC 0.5A MAX
Figure 3: Pressure Sensor Connections
12
SubDrive Duplex Alternator
12
7. Pressure Sensor Connections.
A. Connect the supplied four-conductor cable stripped leads to the
Alternator’s terminal block labeled “Pressure Sensors”.
B. Connect the Red and Black leads to the PS-HI part of the
block. The Red and Black wire connections are
interchangeable.
C. Connect the White and Green leads to the PS-LO part of the
block. The Green and White wire connections are
interchangeable.
D. Connect the other end of the four-conductor cable with the
fork terminals to the two pressure sensors.
E. Connect the Red and Black wires to the “high” set pressure
sensor. Connect the stripped ends of the Red and Black wires
to the Alternator (PS-HI). The Red and Black wire connections
are interchangeable.
F. Connect the Green and White wires to the “low” set pressure
sensor. Connect the stripped ends of the Green and White wires to
the Alternator (PS-LO). The Green and White wire connections
are interchangeable. (See Figure 3 pg. 11).
8. The two pressure sensors communicate the system pressure to the SubDrive
units. The Alternator requires that the pressure sensors have at least a 3 psi
differential. The sensor connected to the Alternator’s PS-HI terminal must be the
one set higher than the other sensor. The sensors are preset at the factory to 50
psi, but must be adjusted by the installer using the following procedure:
A. Remove the rubber end-cap (See Figure 3 pg. 11).
B.Using a 7/32” Allen wrench, turn the adjusting screw clockwise
to increase the pressure and counter-clockwise to decrease the
pressure. The adjustment range is between 25 and 80 psi (1/4 turn =
approximately 3 psi).
C.Replace the rubber end cap.
D.Cover the pressure sensor terminals with the rubber boot
(See Figure 3 pg.11).
Note: If the pressure sensors are not adjusted properly or connected to the
wrong terminals on the Alternator the unit may not function properly. Make sure
that the PS-HI terminal is connected to the pressure sensor that is set higher
than the other pressure sensor.
When increasing the pressure, do not exceed the mechanical stop on the
pressure sensor or 80 psi. The pressure sensor may be damaged.
s CAUTION
!
!
12
SubDrive Duplex Alternator
12 13
9. The Alarm Contacts are an optional feature. The Alarm Contacts are a set
of dry contacts that close when the Alternator declares a fault. These contacts
are rated for a maximum of 24 VAC at 1A (amps) or 24 VDC at 0.5A (amps). Any
type of external alarm indicating load may be attached to these dry contacts as
long as the maximum voltage and current criteria is not exceeded. If the Alarm
Contacts are not used; use the rubber pull-plug on the unused strain relief to
seal the unit from the weather. (See Figure 4 below).
10. When all the cables have been connected to the Alternator, tighten the 4
smaller liquid-tight strain relieves around the cables to 25-30 in. lbs. and tighten
the larger center strain relief to 55-60 in. lbs. to maximize the unit’s weather
protection.
PRESSURE
SENSORS
12 VAC DRIVES
1212
PS-HI PS-LO SD1 SD2
12 1 2
ALARM
24VAC 1A MAX
24 VDC 0.5A MAX
Alternator
PRESSURE
SENSORS
12 VAC DRIVES
1212
PS-HI PS-LO SD1 SD2
12 1 2
ALARM
24VAC 1A MAX
24 VDC 0.5A MAX
Load
24 VAC 1A Max
24 VDC 0.5A Max
(Use the rubber pull-plug on the
unused strain relief to seal the
unit from the weather).
24 Volt AC or DC source (user supplied)
(A) (B)
Figure 4: Alarm Connections
Start-Up and Operation
Apply power to the Alternator controller and the SubDrive units. Only the timing
indicator light will be illuminated until the Alternator detects the presence of the
SubDrive units. This will require letting the system come up to pressure. A steady
green light indicates which pump system is the primary system and that it has no
demand. A ashing green light indicates that a system has demand.
14
SubDrive Duplex Alternator
14
Setting the Alternate Time
The alternate time is set by pressing the button labeled “Change Interval”.
One press will move the orange indicator light over one position; each position
is labeled with a different alternate time. When the primary system has
accumulated an amount of run time equal to the selected alternate time, the
Alternator will switch the primary system to the backup system and the backup
system to the primary system.
Note: Changing the alternator time will NOT reset the cumulative clock.
Fault Detection
The Alternator continuously monitors the water system demand, checking to see
if the water demand is being met as expected. If the water demand is not being
met as expected, the Alternator will begin looking for possible problems with the
system. While it’s looking, the Alternator will alternate the two drives back and
forth a few times. After performing the check, the Alternator will either declare a
fault or leave the system as it was if no problem was found.
Manual Override/Clear Fault Button
The manual override button allows the user to switch which SubDrive system
is the primary system at any time. When the user presses the “Switch Pump or
Clear Fault” button, the Alternator switches the primary system to the backup
system and the backup system to the primary system. When this happens, the
cumulative clock is RESET and begins counting again.
The second function of this button is to clear a fault from the Alternator’s
memory. If this button is held down for 5 seconds, the red FAULT light will clear
and the Alarm Relay will open.
Note: If the Alternator loses power, it will not retain any faults found and will
reset the cumulative clock. The Alternator will “relearn” a fault that was lost
during loss of power.
14
SubDrive Duplex Alternator
14 15
Mounting Dimensions
7.35” 5.80”
4.70” 3.60”
6.65”
5.80”
Accessories
Duplex to Pressure Sensor Cable Kit - 22 AWG 4-conductor pressure sensor
cable:
10 feet: 225597901
100 feet: 225597902
Drive to Duplex Cable Kit - 22 AWG 2-conductor pressure sensor cable:
10 feet: 225597903
100 feet: 225597904
Indoor/Outdoor Transformer Kit
225597905
16
SubDrive Duplex Alternator
16
In the event that a problem occurs with one of the two Drive systems and the
unit is unable to meet demand properly, the Alternator’s diagnostics will detect
the problem and alert the user with a “Fault” light and close a set of dry contacts
that can be connected to an external alarm. The red “Fault” light will ash a
given number of times to indicate the nature of the fault. After a fault has been
corrected, the Alternator can be reset by holding down the “Switch Pump or
Clear Fault” button for 5 seconds or by removing power. The Alternator may also
see that the system is functioning normal again and self clear the FAULT light
and alarm. Fault codes and the recommended corrective action for each are
listed in the chart.
# of
Flashes Fault Possible Cause Corrective Action
1
System 1 down
or shorted low
pressure sensor
System 1 is not meeting
demand properly or
lower set pressure
sensor is shorted
Check Drive 1’s front panel for
possible fault code and follow
corrective actions for that fault code.
Make sure that Drive 1 has a green
light (i.e. it has power). If there is no
fault code and a green light is present,
check the lower set pressure sensor to
see if its contacts are shorted together.
2
System 2 down
or shorted low
pressure sensor
System 2 is not meeting
demand properly or
lower set pressure
sensor is shorted
Check Drive 2’s front panel for
possible fault code and follow
corrective actions for that fault code.
Make sure that Drive 2 has a green
light (i.e. it has power). If there is no
fault code and a green light is present,
check the lower set pressure sensor to
see if its contacts are shorted together.
3
Open high
pressure sensor
Leads to higher set
pressure sensor may be
open or broken or the
sensor itself may have
failed to open
Check the leads to the higher set
pressure sensor. Check the sensor
itself. Check the leads to Alternator’s
terminal block.
4
Leads to Drive 1
are open circuit
Leads from Drive 1 to
Alternator are damaged
or not connected
Check leads from Drive 1 to Alternator.
Check connection at terminal block of
Drive 1 and connection at Alternator
terminal block.
5
Leads to Drive 2
are open circuit
Leads from Drive 2 to
Alternator are damaged
or not connected
Check leads from Drive 2 to Alternator.
Check connection at terminal block of
Drive 2 and connection at Alternator
terminal block.
6
Pressure
sensors not
set far
enough apart
Pressure sensor
differential’s too close.
Both Drives are trying to
meet system demand at
the same time
Adjust pressure sensors so the PSI
difference is great enough to get only
one drive to run at a time; at least 3
psi should be enough difference.
Diagnostic Fault Codes
16
SubDrive Duplex Alternator
16 17
# of
Flashes Fault Possible Cause Corrective Action
1
System 1 down
or shorted low
pressure sensor
System 1 is not meeting
demand properly or
lower set pressure
sensor is shorted
Check Drive 1’s front panel for
possible fault code and follow
corrective actions for that fault code.
Make sure that Drive 1 has a green
light (i.e. it has power). If there is no
fault code and a green light is present,
check the lower set pressure sensor to
see if its contacts are shorted together.
2
System 2 down
or shorted low
pressure sensor
System 2 is not meeting
demand properly or
lower set pressure
sensor is shorted
Check Drive 2’s front panel for
possible fault code and follow
corrective actions for that fault code.
Make sure that Drive 2 has a green
light (i.e. it has power). If there is no
fault code and a green light is present,
check the lower set pressure sensor to
see if its contacts are shorted together.
3
Open high
pressure sensor
Leads to higher set
pressure sensor may be
open or broken or the
sensor itself may have
failed to open
Check the leads to the higher set
pressure sensor. Check the sensor
itself. Check the leads to Alternator’s
terminal block.
4
Leads to Drive 1
are open circuit
Leads from Drive 1 to
Alternator are damaged
or not connected
Check leads from Drive 1 to Alternator.
Check connection at terminal block of
Drive 1 and connection at Alternator
terminal block.
5
Leads to Drive 2
are open circuit
Leads from Drive 2 to
Alternator are damaged
or not connected
Check leads from Drive 2 to Alternator.
Check connection at terminal block of
Drive 2 and connection at Alternator
terminal block.
6
Pressure
sensors not
set far
enough apart
Pressure sensor
differential’s too close.
Both Drives are trying to
meet system demand at
the same time
Adjust pressure sensors so the PSI
difference is great enough to get only
one drive to run at a time; at least 3
psi should be enough difference.
Input from Power Source
to Indoor/Outdoor
Transformer
Voltage 115 VAC
Frequency 60 Hz
Input to Controller Unit
Voltage 12 VAC
Frequency 60 Hz
Power (A) 1.4 Watts
Pressure Setting (B)
Factory preset 50 psi
Adjustment range 25-80 psi
Operating Conditions
NEMA 4 (indoor/outdoor) Model 5850012000
Temperature -13 to 125 ºF (-25 to 51 ºC)
Relative humidity 0-100%, non-condensing or
condensing
Controller Size
(approximate)
Outer dimensions 5.9” H x 5.9” W x 3.6” D
Weight 1.3 lbs (0.59 kg)
For Use With Franklin Electric SubDrives/
MonoDrives
All models (see Table 1 pg. 3
for details)
Note: (A) Power is on the secondary side of Transformer.
(B) Pressure sensors must be set at least 3 psi apart.
Specifications
18
SubDrive Duplex Alternator
18
Quick Reference Guide Duplex Inline – Typical Install Appendix 1
1.25"
NPT
Inlet
1.25"
NPT
Outlet
18.84"
[ 478.5 ]
17.32"
[ 439.9 ]
Input
Power
1.50"
[38.1 ]
9.31"
[ 236.4 ]
6.65"
[ 168.9 ]
2.92"
[ 74.1]
3.45"
[ 87.7]
10.43"
[ 265 ]
7.00"
[177.8]
8.00"
[203.2]
5.72"
[145.2]
Ball Valve Check Valve
Ball Valve Manifold
Manifold
To Output Usage
Water Supply
Inline System
4 Gallon
Tank Minimum
Check
Valve
Check
Valve
Power
Ball Valve
(Discharge into drain
rated for max pump
output at relief pressure)
Pressure
Relief
Valve
Pressure Gauge
Flow
Optional Bypass ¹
*Check Valve
Duplex
Alternator
Pressure Sensors ²
&
³
Check
Valve
*NOTICE: If system plumbing does not have a backflow prevention device a check valve is required on the incoming water supply line.
NOTES:
1. These optional components are shown in a typical installation diagram. They should be used at the installer's discretion as required for particular applications.
2. If the optional high pressure shut-off kits (305707912) are being used on this duplex Inline Constant Pressure System, they should be installed as per the standard
Inline Constant Pressure System Owner’s Manual, with one high pressure cut-off being wired directly to each Inline drive unit.
3. 3 PSI differential required between these two sensors for proper operation of the system. Prior to wiring any components adjust the pressure setting in one of the sensors lower.
This is done by turning the hex pressure adjustment screw on the top of the switch by at least 1/4” turn counter clockwise (or 3 psi).
Dimensions
18
Notes
18 19
TOLL-FREE HELP FROM A FRIEND
Franklin Electric
Submersible Service Hotline
800-348-2420
225589101 REV 3
M1557 06-11
400 East Spring Street, Bluffton, Indiana 46714
Tel: 260.824.2900 Fax: 260.824.2909
www.franklin-electric.com
225589101
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