Franklin Electric Inline 1100 User manual

Inline Constant
Pressure System
Owner's Manual

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Before Getting Started
Read and follow safety instructions. Refer to product data plate(s) for additional operating
instructions and specications.
s CAUTION
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s CAUTION
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RISK OF ELECTRIC SHOCK - This pump is supplied with a grounding conductor and grounding type
attachment plug. To reduce risk of electric shock, be certain that it is connected only to a properly
grounded, grounding-type receptacle. Disconnect power before working on or around the Inline system.
Do not use the Inline system in swimming areas.
This equipment should be installed by technically qualied personnel. Failure to install it in compliance
with national and local electrical codes and within Franklin Electric recommendations may result in
electrical shock or 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.
This equipment must not be used by children or persons with reduced physical, sensory or mental
abilities, or lacking in experience and expertise, unless supervised or instructed. Children may not use
the equipment, nor may they play with the equipment or in the immediate vicinity.
If the power cord is damaged, it must only be replaced by qualied personnel.
• Keep work area clean, well-lit, and uncluttered.
• Keep safety labels clean and in good condition.
• Wear safety glasses while installing or performing maintenance on pump.
• Do not run pump dry. Fill pump with water before starting or pump will be damaged.
• Make sure all ELECTRICAL POWER IS OFF before connecting any electrical wires. Wire Inline
Pressure Boosting System for correct voltage. Follow all pump wiring instructions provided in the
"Wiring" section of this manual.
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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:
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DANGER
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NOTICE
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 major
property damage if ignored.
indicates special instructions which are important but not related to hazards.
Carefully read and follow all safety instructions in this manual and on pump.
WARNINGWARNING

Table of Contents
Before Getting Started .............................................................2
Key Features ....................................................................4
Inspect Your Shipment .............................................................4
Constant Pressure Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation of Inline Constant Pressure System..........................................6
Operation of the Inline Constant Pressure System ......................................12
Drive DIP Switch Options..........................................................14
Maintenance of the Inline Constant Pressure System ....................................15
Replacement Parts...............................................................16
Troubleshooting .................................................................18
Appendix 1 - Inline System Performance Curve ........................................19
Appendix 2 - Friction Loss Tables ...................................................20
Limited Warranty ................................................................23

4
Inline Constant Pressure System
Inline System Key Features
System Features:
• Constant water pressure with a wide range of settings (25-80 psi, 1.7 - 5.5 bar)
• Pump speed is controlled to provide the optimum performance without overloading the motor
• Product Power Rating: 1.2 hp (0.9 kW)
• Low current motor start-up (soft-starting)
• Quiet operation
• Single pump/motor/drive controller design
• Compact footprint, 19 in x 8 in (480 mm x 200 mm)
• Shipping weight: 50 lbs (22.7 kg)
Pump Features:
• Operates on a wide range of ows from ooded suction to 35 gpm (135 lpm)
• Requires minimum incoming pressure of 3 psi (0.2 bar) Exception: Cisterns may be ooded
suction without vortexing
• Increases incoming pressure by up to 60 psi (4.1 bar)
• Stainless steel construction for all wetted surfaces
Drive Controller Protection Features:
• No in-rush (power-on transient) current
• Over-pressure shuto optional (see Replacement Parts section)
• Low water shut-o
• Locked pump detection/shut-o
• Water over-temperature shut-o
• High voltage/lightning surge protection
• Low line voltage protection
• Motor under and overload protection
• Open and short circuit protection
• NEMA 4 enclosure
INSPECT YOUR SHIPMENT
All Franklin Electric Inline Systems are carefully tested, inspected, and packaged to ensure their
arrival in perfect condition. When the pump is received, examine it closely to make sure there is
no damage that may have occurred in shipping. If damage is evident, report this immediately to
your shipping carrier and product dealer. The shipping carrier assumes full responsibility for the
shipment’s safe arrival. Any claim for damage to the shipment, either visible or concealed, must
be made through the shipping carrier rst.
Package Includes:
• Inline 1100 Constant Pressure System pump and controller unit
• Pressure sensor and boot
• Sensor adjustment tool
• Installation manual

Inline Constant Pressure System
5
Constant Pressure Introduction
The Franklin Electric Inline System provides consistent water pressure regulation using advanced
electronics to drive the pump/motor according to the system’s real-time demand. The water
pressure demand is under constant monitoring through a highly accurate, heavy-duty, long-life
pressure sensor, which is included with and wired into the system at the time of installation. By
adjusting the pump/motor speed, the Inline System automatically reacts to any change in system
demand while maintaining a constant output pressure. The Inline System’s constant output
pressure should not uctuate more than a psi or two, even though the overall system’s water
ow requirement may change dramatically. For example, a small demand on the system, such as
a bathroom faucet, results in the motor/pump running at its lowest speed. As greater demands
are placed on the system, such as opening additional faucets or using appliances, the speed
increases accordingly to maintain the desired system pressure.
System Diagnostics
In addition to regulating pump pressure and accurately controlling motor operation, the Inline
System continuously monitors system performance and can detect a variety of abnormal
conditions. In many cases, the controller will compensate as needed to maintain continuous
system operation. But, if there is high risk of equipment damage, the controller will protect the
system by shutting itself down. To help identify that there is a problem with the system (which
includes incoming water and electricity from the utility company), the Inline System will display
that there is a fault condition. See Troubleshooting section for fault codes. If possible, the
controller will try to restart when the fault condition subsides.
Water Over-Temperature Shut-Off
In the event of inadequate water supply, such as closure of the incoming water supply or system
component failure, the unit has a potential to run continuously. This operation can allow for
heating of the water inside the Inline System. To reduce the amount of heating, Inline Systems are
equipped with a thermal cuto switch. See Troubleshooting section for fault codes. Once the Inline
System cools, the unit will automatically resume operation.
Thermal Temperature Limits:
Maximum shut-o temperature - 150 °F (65 °C)
Minimum reset temperature - 118 °F (48 °C )

6
Inline Constant Pressure System
INSTALLATION
Location of the Inline Constant Pressure System
Decide on a location for the pump installation that is suitable based on the enclosure rating of the
Inline System.
Liquid-tight conduit and ttings must be used to maintain NEMA 4 rating.
This equipment must not be used by children or persons with reduced
physical, sensory or mental abilities, or lacking in experience and
expertise, unless supervised or instructed. Children may not use the
equipment, nor may they play with the unit or in the immediate vicinity.
Choose a clean, well-ventilated location that provides protection from freezing, ooding, and
excessive heat. In addition, it should provide access for servicing and allow convenient draining of
the pump, tank, and service pipes. A prepared foundation is not essential, provided the surface is
hard and level. It can be mounted in any orientation depending on the space available.
Installation in direct sunlight can reduce system power and reduce
drive life.
Plumbing, Piping, and Hoses
In general, keep the suction and discharge lines as large as possible. Avoid using bends, elbows,
and ttings whenever possible. All suction connections must be airtight, so use pipe compound on
all threaded joints. Use a suction strainer when applicable to prevent solids and foreign matter from
being drawn into the pump.
Flow Capacity by Pipe Size
The minimum supply pipe diameter should be selected not to exceed a maximum water velocity of
8 ft/sec (2.4 m/s). Use the table below for selection of the proper supply pipe size.
Water Supply Requirement
The Inline System is not designed to draw/lift water from a source below the pumping unit. There is
not an incoming ow requirement, other than that the system needs to be supplied with a constant
supply of water to keep the unit completely full of water at all times. It is recommended that the
system be supplied with inlet line ¾" diameter or larger.
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WARNING
Minimum Pipe Diameter Maximum Flow Rate GPM
1/2" 4.9 (18.5 lpm)
3/4" 11.0 (41.6 lpm)
1" 19.6 (74.2 lpm)
1-1/4" 30.6 (116 lpm)
1-1/2" 44.1 (167 lpm)

Inline Constant Pressure System
7
Incoming Pressure Requirement
The Inline System is designed to operate as low as 3 psi (0.2 bar) at minimum incoming pressures.
When used on a cistern, the incoming pressure requirement is waived, but a water level must be
maintained in the cistern to prevent a vortex from forming.
Failure to maintain incoming water may result in heating of water,
personal injury, pump damage and/or property damage.
Suction Piping
When the pump is located at a distance from the water source, the suction piping may have to be
increased in diameter to reduce friction loss. The friction loss in a system increases:
1. As the ow rate increases
2. As the piping size decreases
Refer to the included Inline System’s performance tables (Appendix 1) and friction loss tables
(Appendix 2) to determine the amount of head lost for a given application.
Discharge Pipe Sizes for Installation
When the pump is located at a distance from points of water use, it is necessary to increase the
discharge pipe size in order to reduce friction loss. The friction loss in a system increases:
1. As the ow rate increases
2. As the piping size decreases
Refer to the included Inline System’s performance tables (Appendix 1) and friction loss tables
(Appendix 2) to determine the amount of head lost for a given application.
Pressure Tank
The Inline System needs a small pressure tank placed on the pump outlet to maintain constant
pressure. The tank supplies water while the pump ramps up to speed and in circumstances where
only a small amount of water is required for a short period of time. In addition, the tank prevents
water hammer by acting as a system buer. This buer also helps to prevent pressure spikes
when there is a sudden change in demand.
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WARNING
System Pressure
(at Pressure Sensor)
Pressure Tank
Setting (±2 PSI)
25 18
30 21
35 25
40 28
45 32
50 Factory Setting 35
55 39
60 42
65 46
70 49
75 53
80 56
NOTE: 1 psi = 0.068 bar

8
Inline Constant Pressure System
For 12 gpm (45 lpm) ow or greater, minimum pressure tank size is 4 gallons (15 L);
for 12 gpm (45 lpm) ow, minimum pressure tank size is 2 gallons (7.5 L).
Pressure Tank Pre-charge (PSI)
The pressure tank pre-charge setting should be 70% of the system pressure sensor setting as
indicated in the preceeding table.
NOTE: Tank pre-charge should be maintained for optimum pressure regulation.
Pressure tank failure may prevent the pump from shutting o. A run-
on condition can heat the water in the pump, which may cause pump
failure, plumbing failure, and/or personal injury.
Failure to install a pressure tank will prevent the pump from shutting
o. FAILURE TO FOLLOW THIS WARNING may result in heating of
water, personal injury, pump damage, and/or property damage.
INSTALLATION
Notice: Read and Follow All Instructions
Hazardous voltage can shock, burn or cause death.
Improper wiring can result in permanent damage to the system. Pump
connection must comply with National Electric Code (NEC) or Canadian
Electric Code (CEC), and all applicable local codes.
If you are not sure of the proper electrical connections, employ a
competent electrician for the installation. This ensures the installation
complies with all noted electrical codes.
Disconnect power at electrical panel before making any electrical connections. Supply voltage
must be +/- 10% of Inline System nameplate voltage (230 V).
Low or high voltage can damage the Inline System and will void the warranty. Connect pump
to dedicated branch circuit with no other appliances on it.
Do not operate pump unless pump is grounded.
A fused disconnect switch or circuit breaker should be placed at or near the pump as required
by local electrical codes.
Installation Procedure Plumbing
1. Disconnect electrical power at the main breaker.
2. Drain the system (if applicable).
3. Mount the Inline System in the desired location using mounting screws. Screw locations are
shown in FIGURE 1. The Inline System may be installed in any orientation.
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CAUTION
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CAUTION
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Inline Constant Pressure System
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4. Install inlet and outlet plumbing and pressure tank as shown in FIGURE 2. A check valve
must be installed in the inlet and outlet plumbing. The outlet check valve should be between
the pump and the pressure tank to prevent the possibility of backow into public water
systems and to ensure proper system operation. The inlet check valve should be used when
no other backow prevention device is present. This inlet check valve should be installed
before the optional bypass loop if that plumbing is used. Franklin Electric recommends that
all system check valves be spring-loaded to provide best system performance. Be sure
to check all local plumbing codes to ensure that all requirements pertaining to backow
prevention are met.
Failure to install check valves properly may prevent the pump
from shutting o. FAILURE TO FOLLOW THIS WARNING may
result in heating of water, personal injury, pump damage, and/or
property damage.
5. Install the pressure sensors at the pressure tank tee downstream of the pressure tank. (The
pressure tank should be between the pressure sensor and the pump.) The pressure sensor
has a 1/4-18 National Pipe Thread (NPT) connection. The pressure sensor should not be
installed in an inverted orientation (upside down). Make sure the pressure sensor and tank
are not located more than 5 feet o the main piping.
6. Install a pressure relief valve downstream of the check valve. The discharge must be
plumbed to a drain rated for maximum pump output at relief pressure setting.
Electrical Diagram
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WARNING
WARNINGInline Systems can develop
very high pressure in some
situations. Always install a
pressure relief valve able to
pass full pump flow at 100
psi (6.9 bar). Install the
pressure relief valve near the
pressure tank.

10
Inline Constant Pressure System
Typical Installation
The Inline System is designed to both increase a system’s incoming pressure and to provide the
system with constant pressure across all outlets. See FIGURE 2 for a graphical representation of
what a typical installation may look like.
*NOTICE: If system plumbing does not have a backow prevention device, a check valve is required on the
incoming water supply line.
NOTE: These optional components are shown in a typical installation diagram. They should be used at the
installer’s discretion as required for particular applications.
MOTOR OVERLOAD PROTECTION NOTE: The drive electronics provide motor overload protection by
preventing motor current from exceeding the maximum Service Factor Amps (SFA). Motor over-temperature
sensing is not provided by the drive.
10.43"
[ 265 ]
7.00"
[177.8 ]
8.00"
[203.2 ]
5.72"
[ 145.2 ]
3.45"
[ 87.7 ]
ACCESS PANEL
ACCESS PANEL SCREWS
9.31"
[ 236.4 ]
2.92"
[ 74.1 ]
6.65"
[ 168.9 ]
1.50"
[38.1 ]
INPUT
POWER
18.84"
[ 478.5 ]
17.32"
[ 439.9 ]
1-1/4" NPT/BSPP
SUCTION 1-1/4" NPT/BSPP
DISCHARGE
Ball
Valve
Check
Valve
Ball
Valve
Union
Coupling
Union
Coupling
To Home
Water Supply
Inline System
Pressure
Shut-o
Switch
(optional)
2 Gallon
Tank
Check
Valve
Power
Ball
Valve
Pressure
Switch
(Discharge into drain
rated for max pump
output at relief pressure)
Pressure
Relief
Valve
Pressure
Gauge
Flow
Optional Bypass
5 feet or Less
*Check
Valve
FIGURE 1:
FIGURE 2: