Shurflo 2088-554-444 Installation Manual
POTABLE WATER PUMP
Installation and Operation Manual
SHURflo has supplied pumps to the manufacturers of RV's for over
30 years. Our patented Tri-a-fram® line of potable water pumps
deliver smooth, consistent flow at all ranges of operation, while
drawing low current. The balanced diaphragm design incorporates
two precision ball bearings for long life. SHURflo pumps are
100% tested for proper operation before they leave the factory. When
installed correctly, SHURflo water pumps will provide years of quiet
operation.
A SHURflo pump in combination with a low back pressure water
system can exceed all expectations. For unmatched reliability and
trouble-free performance request SHURflo's complete line of water
system products.
GENERAL INFORMATION
SHURflo realizes that in many instances our pump is being installed as a replacement pump within an existing system.
The following guidelines should be considered to achieve optimum pump operation
MOUNTING
_ The pump can be at the same level or below the
water tank. It may be positioned above the water
tank if needed, as it is capable of a 6 ft. [1.8M]
vertical prime. Horizontal inlet tubing will allow
priming to 30 ft. [9M].
_ Consider a location that allows easy access if
maintenance is required. The pump should not be
located in an area less than one cubic foot unless
adequate ventilation is provided. Excessive heat
may trigger the integral thermal breaker and
interrupt operation. When the temperature drops
the breaker will automatically reset and start
operation.
_ The pump may be mounted in any position. If mounting
the pump vertically, the pump head should be in the down
position so that in the unlikely event of a leak, water
will not enter the motor.
_ Use
#
8 hardware to fasten the pump. Choose a solid
surface (thick plywood) that will not amplify pump
operation. The mounting feet are intended to isolate
the pump from the mounting surface; overtightening, flattening, or use of oversized screws
will reduce the ability to isolate vibration/noise.
ELECTRICAL
_ The pump should be on a dedicated (individual)
circuit, protected by the specified fuse indicated on
the motor label.
_ A switch rated at or above 15 amps is
recommended, and must interrupt current flow on
the positive (+ red) lead. Marine applications should
use U/L approved marine duty (ignition protected)
switches and pumps.
_ Wire size (gauge/Mm2) is based on the distance
from the power source to the pump. Recommended
size wire is #14 gauge [2.5Mm
2
]. For lengths of 20-
50ft. [6-15M] use #12 gauge [4 Mm
2
].
_ The pump must be grounded to a "known ground"
(frame). The ground wire must be the same size
(gauge/Mm2) as the positive wire.
_ The total current draw on the circuit must not exceed
15 amps. If the pump is used in conjunction with
other components, overload current protection (fuse
or circuit breaker) and wire size must be for the total
amp requirement of all devices on the circuit.
PLUMBING
_ SHURflo recommends at least 1ft. [.3 M] of _"
[13mm] I.D. flexible high pressure tubing to both
ports. Ideally the pumps ports/strainer should not
be connected to plastic or rigid pipe. The pump's
normal oscillation may transmit through rigid
plumbing causing noise, and possibly loosen or
crack components.
_ Installation of a 50 mesh strainer (SHURflo P/N 170)
is recommended to prevent foreign debris from
entering the pump.
_ SHURflo swivel barb fittings provide easy removal
if maintenance or access is required. The fittings are
designed with a "taper-seal", creating a water tight
connection when hand-tightened. Never use Teflon
tape or sealing compounds on threads. Sealer may
enter the pump causing a failure. Failure due to
foreign debris is not covered under warranty.
Always secure barb tubing connections with
properly sized stainless steel clamps to prevent
leaks.
_ Rapid cycling may be caused by excessive back
pressure created by one or more of the following
within a plumbing system:
Water filters not on separate feed lines.
Flow restrictors in faucets and shower heads.
Small I.D. lines. Pipe/tubing should be at least _"
[13mm] I.D. for main lines.
Restrictive fittings and connections (elbows, "T's",
feeder lines to faucets, etc.)
SWITCH SHUT-OFF
Restrictions in a plumbing system may cause the
pump to rapid cycle (ON/OFF within 2 sec.) during low
flow demands. Cycling should be minimized to
prevent pulsating flow, and to achieve maximum
pump life.
To determine if adjustment is necessary, turn a faucet
ON to lower than average flow of water. The pump
should cycle, but its "OFF time" must be 2 sec. or
longer. If the cycling is correct, leave well enough
alone. If the pump is cycling rapidly increase the
setting by turning the screw clockwise (1_ turn MAX.)
until the pump operates for 1 sec. with at least 2 sec.
"OFF time". If cycling cannot be minimized consider
removing plumbing restrictions or simply install a
SHURflo Accumulator.
SWITCH
FUSE
FAUCET
(Typical potable water system shown with optional SHURflo accessories)
WATER TANK
SHURflo
PUMP
ACCUMULATOR
TWIST-LOCK STRAINER
1/2" THREADED OR
1/2" BARB IN-LINE MODELS
SHUT-OFF/
WATER HEATER
CITY WATER
WATER PRESSURE
IN-LINE FAUCET
ADAPTER
WALL MOUNT MODELS
REGULATOR
FILTERED WATER
DRAIN VALVE
VENT
OR
*
*
*
SCREW
IN-LINE STRAINER
SWIVEL BARB FITTINGS*
(No Sealer Req. Do Not Overtighten)
CONNECTOR
OR HEAVIER WIRE
2
(* Included with retail pump kits)
POTABLE WATER
INLET
(15 Amp Min.)
SWITCH
FUSE
Batt.+
WITH #8 HARDWARE
COACHFRAME OR
"KNOWN GROUND"
MOUNT TO A SOLID SURFACE
(See motor label for the
recommended amp fuse.)
(50 Mesh)
Red
Black
(Water-proof)
#14 [2.5 Mm ] GAUGE
S
STAINLESS STEEL
CLAMPS (2 REQ.)
1/2" I.D. FLEXIBLE BRAIDED (high psi.)
TUBING 12 in. LENGTHS
(recommended)
911-352 Rev. I 06/05 pg. 1 of 2
SANITIZING
Potable water systems require periodic maintenance to deliver a consistent flow of
fresh water. Depending on use and the environment the system is subject to,
sanitizing is recommended prior to storing and before using the water system after
a period of storage. Systems with new components, or ones that have been
subjected to contamination, should also be disinfected as follows:
NOTE:The sanitizing procedure is in conformance with the approved procedures
of RVIA ANSI A119.2 and the U.S. Public Health Service.
1. Use one of the following methods to determine the amount of common household
bleach needed to sanitize the tank.
A) Multiply "gallons of tank capacity" by 0.13; the result is the ounces of bleach
needed to sanitize the tank.
B) Multiply "Liters of tank capacity" by 1.0; the result is the milliliters of
bleach needed to sanitize the tank.
2. Mix into solution the proper amount of bleach within a container of water.
3. Pour the solution (water/bleach) into the tank and fill the tank with potable water.
4. Open all faucets (Hot&Cold) allowing the water to run until the distinct odor of
chlorine is detected.
5. The standard solution must have four (4) hours of contact time to disinfect
completely. Doubling the solution concentration allows for contact time of one
(1) hour.
6. When the contact time is completed, drain the tank. Refill with potable water
and purge the plumbing of all sanitizing solution.
WINTERIZINGIf water is allowed to freeze in the system, serious damage to
the plumbing and the pump may occur. Failures of this type will void the
warranty. The best guarantee against damage is to completely drain the water
system.
NOTE:When used per the manufacturers recommendations non-toxic antifreeze
for potable water is safe for use with SHURflo pumps. Refer t o the
co ach manufa c t urer and oth e r e q uipme nt manufactures for their
specific winterizing & drainage instructions.
CAUTION: Do not use Automotive Antifreeze to winterize potable
water systems. Such solutions are highly toxic. Ingestion may cause
serious injury or death.
To properly drain the system perform the following:
1. Drain the water tank. If the tank doesn't have a drain valve, open all faucets
allowing the pump to operate (15 min. ON / 15 min. OFF) until the tank is empty.
2. Open all the faucets (including the lowest valve or drain in the plumbing) and allow
the pump to purge the water from the plumbing, then turn the pump OFF.
3. Using a pan to catch the remaining water, remove the plumbing at the pump's
inlet/outlet ports. Turn the pump ON, allowing it to operate until the water is
expelled. Turn OFF power to the pump once the plumbing is emptied. Do not
reconnect pump plumbing. Make a note at tank filler as a reminder: "Plumbing is
Disconnected".
4. All faucets must be left open to guard against any damage.
TROUBLESHOOTING
Vibration induced by road condition can cause plumbing or pump hardware to loosen. Check for system components that are loose. Many symptoms can be resolved by
simply tightening the hardware. Check the following items along with other particulars of your system.
PUMP WILL NOT START/ BLOWS CIRCUIT:
Electrical connections, fuse or breaker, main switch, and ground connection.
Is the motor hot? Thermal breaker may have triggered; it will reset when cool.
Is voltage present at the switch? Bypass the pressure switch. Does the pump
operate?
Charging System for correct voltage (±10%) and good ground.
For an open or grounded circuit, or motor; or improperly sized wire.
For seized or locked diaphragm assembly (water frozen?).
WILL NOT PRIME/SPUTTERS: (No discharge/Motor runs)
Is the strainer clogged with debris?
Is there water in the tank, or has air collected in the hot water heater?
Is the inlet tubing/plumbing sucking in air at plumbing connections (vacuum leak)?
Is inlet/outlet plumbing severely restricted or kinked?
Proper voltage with the pump operating (±10%).
For debris in pump inlet/outlet valves or swollen/dry valves.
Pump housing for cracks or loose drive assembly screws.
SERVICE KITS
To insure the correct service kit, order by the complete model number, date of
manufacture and other name plate data. Part kits come with complete repair
instructions. Pump illustrations may not be representative of all SHURflo potable
water pump models and are only for depiction of the various parts kit assemblies.
1
Switch / Check valve and Upper Housing Kit
(Replaces all previous switch designs)
2
Valve plate assembly
3
Diaphragm / Drive assembly
4
Motor
5
Complete Pump Head assembly (includes parts #1, 2, 3)
(Replaces all previous switch designs)
PUMP WILL NOT SHUT-OFF / RUNS WHEN FAUCET IS CLOSED:
Output side (pressure) plumbing for leaks, and inspect for leaky valves or toilet.
For air trapped in outlet side (water heater) or pump head.
For correct voltage to pump (±10%).
For loose drive assembly or pump head screws.
Are the valves or internal check valve held open by debris or is rubber swollen?
Pressure switch operation/adjustment, refer to shut-off adjustment for switch.
NOISY OR ROUGH OPERATION:
For plumbing which may have vibrated loose.
Is the pump plumbed with rigid pipe causing noise to transmit?
Does the mounting surface multiply noise (flexible)?
For mounting feet that are loose or are compressed too tight.
For loose pump head to motor screws. (3 long screws)
The motor with pump head removed. Is noise from motor or pump head?
RAPID CYCLING:
For restrictive plumbing, flow restrictors in faucets/shower heads.
Water filter/purifier should be on separate feed line.
Pressure switch shut-off adjustment.
LEAKS FROM PUMP HEAD OR SWITCH:
For loose screws at switch or pump head.
Switch diaphragm ruptured or pinched.
For punctured diaphragm if water is present in the drive assembly.
LIMITED WARRANTY
SHURflo warrants its Potable Water pumps to be free from material and workmanship defects under
normal use and service for a period of two (2) years from the date of manufacture indicated on the
motor name plate.
The limited warranty will not apply to pumps that were improperly installed, misapplied, or are
incompatible with components not manufactured by SHURflo. Pump failure due to foreign debris is
not covered under the terms of this limited warranty. SHURflo will not warrant any pump that is
physically damaged, or altered outside the SHURflo factory.
Warranty claims may be resolved by an authorized dealer service center, or by a SHURflo service center.
Returns are to be shipped with charges pre-paid. Package all returns carefully. SHURflo will not be
responsible for freight damage incurred during shipping to a service center.
For complete Limited Warranty details consult Service Bulletin #1050
ISO Certified Facility
SHURflo reserves the right to update specifications, prices, or make substitutions.
SHURflo, LLC
5900 Katella Ave.
Cypress, CA 90630
(800) 854-3218 (562) 795-5200
FAX (562) 795-7564
Shipping/UPS: 5900 Katella Ave. Bldg. C
Cypress, CA 90630
SHURflo, LLC East
52748 Park Six Court
Elkhart, IN 46514-5427
(800) 762-8094 (574) 262-0478
FAX (574) 264-2169
http://www.shurflo.com
© 1999-2005 Printed in USA
SHURflo Ltd.
Unit 5 Sterling Park
Gatwick Road, Crawley
West Sussex, RH10 2QT
United Kingdom
+44 1293 424000
FAX +44 1293 421880
911-352 Rev. I 06/05 pg. 2 of 2
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