Pentair SHURFLO Installation Manual
SHURFLO® LO-FLO 105 SERIES RV PUMPS
INSTALLATION MANUAL
SHURFLO Lo-Flo 105 Series RV pumps are rugged, lightweight, compact and provide the ability to self-prime and run dry.
Standard features include a pressure demand switch, built in 3/8” hose barb ports, flexible mounting feet, splash proof motor,
and thermal protector. All with the security that comes with a UL Recognized Component.
INSTALLATION
SHURFLO Lo-Flo 105 Series RV pumps are self-priming and can be located up to 2.5
feet above the water level. Horizontal and vertical prime vary depending on the fluid
viscosity and pump configuration. The pump can be at the same level or below the
tank.
❚ The pump should be located in an area that is dry and properly ventilated to prevent heat build-up.
❚ Use 50-mesh strainer minimum at the inlet side of the pump. Use flexible hose on
inlet.
❚ The pump can be mounted in any position. However, if mounting the pump vertically the pump head should be in the down position so that in the event of a leak,
fluid will not enter the motor.
❚ 12 Volt pump must be provided with a 5-amp fuse.
❚ Recommended wire size is 16 gauge (1.3 mm) or larger wire as determined by volt-
age drop. Negative (-) must be connected to a known ground. Ground wire must be
the same (gauge/mm) as the positive.
FUSE
Water Tank
SWITCH
RED(+)
PUM P
BATTERY
BLACK(-)
TROUBLESHOOTING
PUMP WILL NOT START
√ For correct voltage (+10%) and
electrical connections
√ Fuse or breaker
√ Pressure switch operation and
correct voltage at switch
√ Rectifier or motor for open or
grounded circuit
√ For locked drive assembly
PUMP WILL NOT PRIME
(No Discharge/Motor Runs)
√ Strainer for debris
√ Inlet/Outlet tube severely restricted
(kinked)
√ Inlet /Outlet valves for debris or
swelling
PUMP WILL NOT SHUT-OFF
√ Output line closed and no leaks
√ For air trapped in outlet line or
pump head
√ For correct voltage to pump
√ Debris in pump Inlet/Outlet valves
√ For loose drive assembly or pump
head screws
√ Pressure switch operation/adjust-
ment
50 Mesh Strainer Required if using SHURFLO P/N 170-06X-00
A 1/2” to 3/8” Barb splicer is required.
WATER PURFICATION 911-585 REV. E 1
From Pump
“T” Fitting
Alternate Plumbing
for City Water Entry
To Faucet
Check Valve
LEAKS FROM PUMP HEAD OR SWITCH
√ For loose screws at switch or pump
head
√ Switch diaphragm ruptured or
pinched
√ For punctured diaphragm if fluid is
present at drain holes
City Water
Plumbing Systems can vary.
Consult SHURFLO for detailed
information.
PRODUCT SPECIFICATIONS
Model Number: 105 Series
Pump Design: Positive Displacement Pump
Motor: Placement Magnet, 11-262-00
Voltage: 12 VDC
Pressure Switch: Factory Set: 30 PSI Shut-off, Turn-on 25+/- 5 PSI
Liquid Temperature: 100° Max F [43° C]
Prime: Self Priming up to 2.5 ft. vertical
Ports: 3/8" Barb
Net Weight: 1.27 lbs.
Duty Cycle: Intermittnet
Max Amps: 105-003, 2.5 Amps @ 30 PSI
MATERIALS OF CONSTRUCTION
Motor Housing: Nylon
Plastic: Polypropylene
Valves: EPDM
Diaphragm: Santoprene
Fasteners: Zinc Plated /
Stainess Steel
30
[2.1]
20
[1.4]
10
[0.7]
PRESSURE: PSI [BAR]
0
0.30
[1.14]
0.65
[2.46]
FLOW: GPM [LPM]
1.00
[3.79]
#10 Screw Mounting Hole
3/8” Hose Barb Port
Pressure Switch
3.20”
2.25”
6.82”
2.45”
1.87”
WATER PURIFICATION
3545 HARBOR GATEWAY SOUTH, SUITE 103, COSTA MESA, CA 92626, (800) 854-3218 WWW.SHURFLO.COM
All Pentair trademarks and logos are owned by Pentair, Inc. All other brand or product names are trademarks or registered marks of their respective owners.
Because we are continuously improving our products and services, Pentair reserves the right to change specifications without prior notice.
Pentair is an equal opportunity employer.
911-585 Rev. E 12/12 ©Pentair, Inc. All Rights Reserved.
18 AWG Red Positive
18 AWG Black Negative
5.01.70”1.55”3.94”
2
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