Pentair SHURFLO 4048 Installation & Operation Manual

SHURFLO
4048 RV BY-PASS PUMP
®
INSTALLATION & OPERATION MANUAL
14 AWG [2.5mm] or heavier wire
Connector
Switch
Black
Ground
Mount to a Solid Surface
Do NOT Overtighten
Flexible Braided
High Flow Hose

INSTALLATION PREPARATION

The goal of installation is to provide a
quiet, easy-to-maintain installation with
good flow and low backpressure. This
can be accomplished with the following
guidelines:
❚ Mount on a solid surface in an
accessible location for strainer cleaning
and pump maintenance.
❚ Use flexible high-pressure hose
on the pump inlet and outlet [such
as SHURFLO Kit 94-591-01]. The
pumps ports and strainer should
not be connected to plastic or rigid
pipe, or the pump's normal motion
will transmit through rigid plumbing
causing noise, and possibly loosening
or cracking components.
❚ Pump must use an adequate 50-mesh
strainer [such as SHURFLO 255 series
strainers].
❚ Use a minimum of 1/2" [13mm]
Inner Diameter plumbing. Smaller ID
Plumbing will cause cavitation, high
back pressure, low flow and noise.
FLOW MANAGEMENT SOLUTIONS
Fuse
Red lead (+)
Typical Pump Installation
❚ No need for an accumulator with by-
pass pumps.
❚ Pump is designed for intermittent
duty only: Do not use these pumps
for running a Reverse-Osmosis [RO]
Filtration System. High pressure-
continuous duty usage will shorten
the life of the pump and is not covered
under warranty.
❚ Wire Size is 14 GA [2.5mm²]
MINIMUM, 12GA [4mm²] is
recommended—See Wire Chart in
Electrical Section for minimum sizing.
❚ Minimum power requirement is a 10
Amp circuit.
❚ Reduce restrictions on inlet and
outlet. This includes small inner
diameter shut-off valves, winterizing
valves and elbows.
❚ If the RV has an Intellitec Pump
Controller, it must be rated at 10 or 15
amps; If the controller is rated at 7.5
Amps, a new controller or a high-amp
relay must be used.
911-1024 REV. C
Strainer

INSTALLATION GUIDELINES

❚ Solid Surface within 6' of tank.
❚ Minimize flow restrictions in the
system.
❚ No Accumulator needed.
❚ Flexible hose on inlet and outlet.
❚ Minimize plumbing elbows and valves.
❚ Accessible location.
❚ Strainer on pump inlet.
❚ Properly Sized wiring.
❚ Properly electrical protection.
❚ Properly sized plumbing.

MOUNTING

❚ Mount the pump within 6 feet of the
tank for best performance and pump
life. The pump will pull farther, but the
farther it pulls the more work it does,
increasing vibration and noise, and
reducing the output and pump life.
❚ Mount pump in a space of at least 1
cubic foot for adequate ventilation to
prevent overheating.
❚ Pump may be mounted in any position.
❚ Mount pump for easy access for
cleaning strainer, maintenance and
service.
❚ Mount pump on a solid surface to
prevent vibration and noise.
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