FLOJET 3426 series, 3526 series, 3626 series User Manual

FEATURES

2.25"

3.12"

4.24"

4.75"

3.18"

9.04"

(80 mm)

(65 mm)

(229 mm)

(80 mm)

(108 mm)

(121 mm)

• Self–Priming

• Dry Running

• Soft Noise Absorbing Mounts

• Snap–in Port Fittings

• Built-in Bypass : Less Pulsation

• Reduces need for accumulator tank

• Corrosion Resistant Materials

• Meets ISO 8846 (Ignition protection)

SPECIFICATIONS

Motor: Permanent Magnet, Ball Bearing

Totally Enclosed. CE Models are
fully suppressed.

Pump: Three chamber diaphragm design

Self-priming up to 9 feet suction lift;
Pump able to run dry without damage

“Triplex Diaphragm”

3426 / 3526 / 3626 Series

Automatic Water System Pump

Dimensions English (SI)

Pump Height Length Width Weight
Series

3X26XXX 4.75 (121) 9.00 (229) 6.00 (152) 3.50 (1.59)

inches (mm) inches (mm) inches (mm) Lb (Kg)

Model 3426 / 3526 / 3626 Series

MODEL* VOLTS AMP DRAW

@10 psi (0.7 bar)

FLOW

GPM (LPM)

PRESSURE SWITCH

Max psi (bar)

BYPASS

03526144 12V dc 4.4 2.9 (11) 50 (3.4) Ye s
R3626344 24V dc 2.2 2.9 (11) 40 (2.8) Yes

R3426144 12V dc 4.4 2.9 (11) 25 (1.7) Ye s
R3426344 24V dc 2.2 2.9 (11) 25 (1.7) Yes
R3426148 12V dc 3.5 2.0 (8) 25 (1.7) Ye s
R3426348 24V dc 1.7 2.0 (8) 25 (1.7) Ye s

*CE fully suppressed models are identified by a prefix “R” and a CE mark on the label.(i.e. R3626144).
Self Declaration Of Conformance (SDOC) is available upon request.

OPERATION

With pump switch off and battery fully charged, fill water tank, open all faucets, then turn pump switch on. Water will
begin to flow. When the water is free of air, turn faucets off. Remember, you are filling the water heater and the toilet
and shower lines. When all valves are shut-off, pump will stop. Should pump fail to stop, turn switch off and see the
trouble shooting guide. CAUTION - Pump surface will get hot to the touch if operated for extended periods of time
under pr

essurized conditions.

DIMENSIONAL DRAWING

C

A

B

Red (+)

Fuse

(+)

Switch

Battery

Black ( )

-

)

-

)

INSTALLATION

City Water

Inlet

Check

Valve

Flojet Inlet

Strainer

Water

Heater

Water

Tank

STEP 1

Remove shipping plugs from pump ports. Some water
from factory testing may spill out.

STEP 2

Connect fittings supplied with the pump to the RV’s
plumbing. Use 1/2’ I.D. Flexible hose (preferably braided
or reinforced) to reduce vibration through the plumbing
system as shown on Fig. 1. Use hose clamps on the
slip-on barb hose connectors.

STEP 3

Slide rubber mounts fully into 4 mounting tracks.

STEP 4

Mount pump vertically, with pump head down or
horizontally in an accessible location. If mounting
vertically, motor up, attach motor mounts first then pump
head mounts, while supporting weight of pump.

STEP 5

Install inlet A and discharge B port connectors. Firmly
push slide clips C forward to lock port connectors in
place.

STEP 6

Install a Flojet strainer in an accessible location (for
inspection and cleaning) between the tank and pump
inlet.
This strainer or equivalent is required for pump warranty
to be valid.

WIRING

STEP 1

Use 14 gauge stranded wire to 20’, 12 gauge to 50’,
from power source.

STEP 2

Use a 10-15 amp rated on-off switch on the (+) positive
(red) motor lead.

STEP 3

Install a 10 amp fuse protection on the positive lead.

FIG. 1

Note: To help reduce noise and vibration of the pump
thr

ough the system use flexible lines on the inlet and
outlet of the pump as shown above. Be sure to use
lines rated to not collapse under pump vacuum.

20381000

PUMP PORT x

1/2" MALE QEST.

STRAIGHT

20381002

PUMP PORT x

1/2" HOSE BARB

STRAIGHT

20381006

PUMP PORT x

3/4" HOSE BARB

STRAIGHT

20381007

QUAD PORT x

GARDEN HOSE

STRAIGHT

20381008

PUMP PORT x

1/2" MALE QEST.

90° ELBOW

20381009

PUMP PORT x

1/2" HOSE BARB

90° ELBOW

20381010

PUMP PORT x

3/4" HOSE BARB

90° ELBOW

1

4

3

2

TROUBLESHOOTING

WARNING: BEFORE SERVICING PUMP, TURN OFF PUMP AND DRAIN WATER FROM SYSTEM!!

Failure to Prime - Motor operates, but no pump discharge

• Restricted intake or discharge line

• Air leak in intake line

• Debris in pump

• Punctured pump diaphragm (pump leaks)

• Crack in pump housing

Motor falls to turn on

• Loose wiring connection
Pump circuit has no power

•

• Blown fuse

• Pressure switch failure

• Defective motor

Pulsating Flow

• Restricted pump delivery. Check discharge lines, fittings
and valves for clogging or undersizing

Pump Fails to Turn Off After All Fixtures Are Closed

• Empty water tank
Insufficient voltage to pump (low battery)

•

• Punctured pump diaphragm (pump leaks)

• Discharge line leak

• Defective pressure switch

Low Flow and Pressure

• Air leak at pump intake
Accumulation of debris inside pump and plumbing

•

• Worn pump bearing (excessive noise)

• Punctured pump diaphragm (pump leaks)

• Defective motor

EXPLODED VIEW

AUTOMATIC WATER SYSTEM PUMP SERVICE PARTS

KEY# DESCRIPTION 3426XXX 3526XXX 3626XXX

1 Pressure Switch 2091025 2091050 2091040
2 Pumphead Assembly 20406047A (2.9 gpm) 20406045A 20406046A

3 Check Valve Assembly 20407034 20407034 20407034

4 Slide Clips (Pair) 21000407A 21000407A 21000407A

ACCESSORIES

QUICK CONNECT PORT SYSTEM

• The above part numbers are packaged with 2 fittings per bag.

STRAINERS

Pump Series Strainer Number Inlet Outlet Screen

3X26XXX 1740012 1/2 Barb Quad Port 40 Mesh

20406048A (2.0 gpm)

1740002
1740004 1/2 M Qest 1/2 M Qest 40 Mesh
1740014 1/2 M Qest Quad Port 40 Mesh

1/2 Barb 1/2 Barb 40 Mesh

SYSTEM CARE AND MAINTENANCE

Winterizing

Allowing water to freeze in the system may result in
damage to the pump and plumbing system.

Non-Toxic antifreeze for potable water may be used with
Flojet pumps. Follow manufacturers recommendations.

Refer to coach or equipment manufacturers instructions
for their specific winterizing and drainage procedures.

Do not use automotive antifreeze to winterize potable
water systems. These solutions are highly toxic and may
cause serious injury or death if ingested.

1. Drain the water tank. Open tank drain valve. You may
use the pump to drain the tank by opening all the
faucets in the system. Allow the pump to operate untill
the tank is empty. Do not operate the pump more than
15 minutes continuously.

2. Open all faucets and purge the water from the
plumbing system. Turn power to the pump off. Be sure
that all the water from the drain lines are drained.

3. Remove quick connect inlet and outlet fittings from the
pump and turn the pump on to pump out remaining
water from the pump head. Be sure to have a catch pan
or a rag under the pump to prevent water from spilling
on to the RV. Turn the pump off once the plumbing is
empty. Leave the fittings disconnected from the pump
until the system is ready to be used again. Make a note
on your tank filler that the plumbing is not connected.

4. Be sure that all faucets are left open to protect against
damage to the plumbing.

Sanitizing

Portable 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

US Public Health Service.

1. Use of the following methods to determine the amount
of common household bleach needed to sanitize the
tank.

1. A) Multiply “gallons of tank capacity” by 0.13; the

result is the ounces of bleach needed to sanitize
the tank.

1. 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 and 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.

WARRANTY

FLOJET warrants this product to be free of defects in material
and/or workmanship for a period of two years after purchase by
the customer from FLOJET. During this two warranty period,
FLOJET will at its option, at no charge to the customer, repair or
replace this product if found defective in material or
workmanship, with a new or reconditioned product, but not to
include costs of removal or installation.

This is only an overview of our Limited Warranty. If you would
like a copy of our warranty, please call or write FLOJET.

U.S.A.
Flojet
Cape Ann Industrial Park
Gloucester, MA 01930
Tel: [phone]
Fax: [phone]

Copyright 2005, ITT Industries Printed in U.S.A. All Rights Reserved Form: 81000-384 Rev. B 06/2005

UNITED KINGDOM
Flojet
Bingley Road, Hoddesdon
Hertfordshire EN11 OBU
Tel: [phone]
Fax: [phone]

CANADA
Fluid Products Canada
55 Royal Road
Guelph, Ontario N1H 1T1
Tel: [phone]
Fax: [phone]

RETURN PROCEDURE

Prior to returning any product to FLOJET, call customer service
for an authorization number. This number must be written on the
outside of the shipping package. Place a note inside the
package with an explanation regarding the reason for return as
well as the authorization number. Include your name, address
and phone number.

www.flojet.com

JAPAN
NHK Jabsco Company Ltd.
3-21-10, Shin-Yokohama
Kohoku-Ku, Yokohama, 222
Tel: [phone]
Fax: [phone]

GERMANY
Jabsco GmbH
Oststrasse 28
22840 Norderstedt
Tel: [phone]
Fax: [phone]

ITALY
Jabsco Marine Italia
Via Tommaseo, 6
20059 Vimercate, Milano
Tel: [phone]
Fax: [phone]