Franklin Electric INLINE CONSTANT PRESSURE SYSTEM El Manual Del Propietario página 4

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 fluctuate more
than a psi or two, even though the overall system's water flow
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
cut off switch. See Troubleshooting Section for fault codes.
Once the Inline system cools, the unit will automatically resume
operation.
Thermal Temperature Limits:
Maximum shut off temperature - 150 °F (65 °C)
Minimum reset temperature - 118 °F (48 °C )
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.
W A R N I N G Liquid tight conduit and fittings must be used to
maintain NEMA 4 rating.
Choose a clean, well-ventilated location that provides protection
from freezing, flooding, 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.
NOTICE: installation in direct sunlight can reduce system power
2
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 fittings 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.
Minimum Pipe Diameter
1/2"
3/4"
1"
1-1/4"
1-1/2"
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 flow
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.
INCOMING PRESSURE REQUIREMENT
The Inline System is designed to operate at minimum incoming
pressures as low as 3 psi (0.2 bar). 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.
W A R N I N G 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 flow 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 flow 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.
Maximum Flow rate GPM
4.9 (18.5 lpm)
11.0 (41.6 lpm)
19.6 (74.2 lpm)
30.6 (116 lpm)
44.1 (167 lpm)