“Quad II Diaphragm”
Models 4305 & 4325
Automatic Water System Pump
FEATURES
• Self-Priming
• Dry Running
• Soft, Noise Absorbing Mounts
• Corrosion Resistant Materials
• D.C. Models Meet U.S.C.G. Electric Standards
• A.C. Models Have 6’ Power Cord
SPECIFICATIONS
Motor: Permanent Magnet, Ball Bearing. CE Models are fully suppressed.
Pump: Four chamber diaphragm design; Self-priming up to 10 ft. suction lift; Pump able to run dry without damage; Removable port to hose connectors.
Note: 4300 Series pumps are not bypass type pumps and can be used in systems with an accumulator tank.
3.5
(90)
(Available on 12 & 24V d.c. Models and 230V a.c. Model)
3.44
(87)
3.25
(82)
Pump Series
4305-xxx
4305-144
4325-XXX
Dimensions - Inches (mm)
Height Width Length
Weight lb. (kg)
3.75 (95) 6.3 (160) 8.2 (208) 3.9(1.8)
3.75 (95) 6.3 (160) 8.6 (218) 4.5(2.1)
3.75 (95) 6.3 (160) 9.9 (252) 6.0(2.8)
MODEL* VOLTS
AMP DRAW
@ 10 psi (0.7 bar)
FLOW
GPM (V.in)
PRESSURE SWITCH
MAX psi (bar)
4305-144
4305-500
4305-501
4305-502**
4305-503**
12V dc
12V dc
24V dc
24V dc
12V dc
4325-143
4325-343
4325-443
4325-043
12V dc
24V dc
32V dc
115V ac
4325-243 230V ac
**Low Flow/Low Pressure Models
5.0
4.0
1.8
2.0
2.4
6.0
2.5
2.0
0.5
0.3
3.5 (13.5)
3.3 (12.5)
3.3 (12.5)
2.3 (8.7)
2.3 (8.7)
4.5 (17)
4.5 (17)
4.5 (17)
4.5 (17)
4.5 (17)
* CE fully suppressed models are identified by a prefix “R” and a CE mark on the label. (i.e. R4305-500)
Self Declaration Of Conformance (SDOC) is available upon request.
40 (2.8)
35 (2.5)
35 (2.5)
20 (1.3)
20 (1.3)
40 (2.8)
40 (2.8)
40 (2.8)
40 (2.8)
40 (2.8)
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 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..
City Water
Inlet
Water
Heater
C
Water
Tank
Check
Valve
Autofill Tank Valve,
Plumb to Tank
Do Not Plumb Autofill to Pump Suction Line Flojet Inlet
Strainer
INSTALLATION
STEP 1
Remove shipping plugs from Quad pump ports. Some water from factory testing may spill out.
STEP 2
Install inlet A and discharge B port connectors. Firmly push slide clips C forward to lock port connectors in place.
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.
A
B
STEP 5
Use 1/2” I.D. flexible hose (preferably braided or reinforced). Use hose clamps on the slip-on barb hose connectors.
STEP 6
Install no less than 3/8” I.D. hose for feed lines to fixtures. Use high pressure hose on all city water lines.
STEP 7
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.
NOTE: Small accumulator tank maybe used for smoother flow.
Black (–)
Red (+) (+) (–)
Fuse
Switch
Battery
D.C. 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 10-15 amp fuse protection on the positive lead for the -500, -144 and -143 models, use a 7 amp fuse for the
- 503 and -343 and a 4 amp fuse for -501 and -443 models.
NOTE: The 115 and 230 Volt models may be plugged directly into any ac outlet. A G.Fl. (ground fault interruption) outlet and switched circuit is recommended.
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 valves for clogging or undersizing.
Pump Falls 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
Motor falls to turn on
• Loose wiring connection
• Pump circuit has no power
• Blown fuse
• Pressure switch failure
• Defective motor
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
Pulsating Flow - Pump cycles on and off
• Restricted pump delivery. Check discharge lines, fittings and
1 2 3 5
9 6 8 4
Quite often when a pump is worn or defective the one failed component has overburdened others. To avoid frequent aggravating repairs, Flojet offers service kit assemblies making repairs as quick and easy as possible.
DISASSEMBLE
Pressure Switch
1. Remove switch (9). Disconnect switch wires.
Upper Housing
2. Loosen but do not remove four pump head screws and carefully remove upper housing assembly (1)
3 Inspect check valve (2) for debris
4. Reassemble new upper housing (1)
Check Valve Assembly
Follow step 2
3. Replace check valve (2)
4. Reassemble upper housing (1)
Lower Housing, Diaphragm, Motor
Follow step 2
3. Rotate lower housing (4) so mounting notch opening on lower housing exposes set screw which holds bearing housing to shaft.
4. Loosen this set screw by inserting wrench 1/8” Allen wrench into mounting notch opening. Then, slide lower housing (4) off motor shaft.
Diaphragm Cont’d
5. Loosen four cam piston screws with Phillips head screw driver and pull apart cam from inner pistons. (Pistons should always be replaced when a new diaphragm is installed.)
Motor Cont’d
5. Replace Motor
REASSEMBLE
Motor
1. Reassemble lower housing assembly (4) to motor. (Follow steps 4 to 10.)
Diaphragm
2. Lower housing is assembled with:
• Flat side of diaphragm and outer pistons facing motor
• Hex stem of inner pistons must be aligned into hex holes in outer pistons (4).
• Outer pistons must be aligned with alignment slots on cam assembly making sum screw holes align in cam assembly, otherwise diaphragm will leak.
3. Tighten cam piston screws partially, center piston in diaphragm, then tighten screws securely (18 in. lbs. torque)
Lower Housing
4. Reassemble lower housing assembly (4) to motor.
5. Retighten set screw securely. Set screw head must be positioned facing motor covering seam (indentation).
(Positioning of this screw is critical to avoid misalignment and subsequent diaphragm damage.)
Upper Housing, Check Valve
6. Reassemble upper housing (1)
7. Properly seat O-Ring in check valve assembly (2) and check if fe rules and screen a. in place on upper housing (1)
8. Install check valve (2) into upper housing (1) and push in.
9. Assemble on to lower housing (4), align 4 screws on to motor by rotating lower housing (4) if necessary to align feet
10. Tighten screws evenly to 30 in. lbs. torque.
Pressure Switch
1. Place switch against front of pump (9), insert screws and take care not to cross thread or strip out threads in housing.
2. Reconnect wires.
AUTOMATIC WATER SYSTEM PUMP SERVICE PARTS
KEY# DESCRIPTION
0 Service Kit*
MODEL#
4305-144 4305-500 4305-501 4305-502 4305-503 4325-143 4325-343 4325-443 4325-043 4325-243
20409-043 20409-043 20409-043 20409-043 20409-043 20409-043 20409-043 20409-043 20409-043 20409-043
1 Upper Housing With Clips 20404-003 20404-008 20404-008 20404-012 20404-012 20404-003 20404-003 20404-003 20404-003 20404-003
2 Check Valve Assembly 20407-030 20407-030 20407-030 20407-030 20407-030 20407-030 20407-030 20407-030 20407-030 20407-030
3 Diaphragm Assembly (includes screws) 20403-040 20403-040 20403-040 20403-040 20403-040 20403-040 20403-040 20403-040 20403-040 20403-040
4 Lower Housing Assembly 20419-004 20419-001 20419-001 20419-000 20419-000 20419-002 20419-002 20419-002 20419-002 20419-002
5 Motors
Motors CE Models
Motor 115 Volt a.c./230 Volt a.c.
2009-087A 2009-073A 2019-023A 2019-23A 2009-074A 2009-080A 2019-027A 2049-026A
R2009-087A R2009-073A R2009-023A R2019-023A R2009-074A R2009-080A R2019-027A —
— — — — — — — —
—
—
—
—
2029-091A 2039-087A
7 Pump Head Assembly
8 Side Clips (pair)
20406-015A 20406-007A 20406-007A 20406-012A 20406-012A 20406-002A 20406-002A 20406-002A 20406-002A 20406-002A
20408-000 20408-000 20408-000 20408-000 20408-000 20408-000 20408-000 20408-000 20408-000 20408-000
9 Pressure Switch Assembly 2090-118 2090-104 2090-104 2090-108 2090-108 2090-118 2090G-118 2090-118 2090-118 2090-118
*Service Kit includes #2, #3, #8 and drive cam assembly.
ACCESSORIES
QUICK CONNECT PORT SYSTEM
20381-000 20381-002
QUAD PORT x
1/2" MALE QEST.
STRAIGHT
QUAD PORT x
1/2" HOSE BARB
STRAIGHT
20381-006
QUAD PORT x
3/4" HOSE BARB
STRAIGHT
20381-007
QUAD PORT x
GARDEN HOSE
STRAIGHT
20381-008 20381-009
QUAD PORT x
1/2" MALE QEST.
90
°
ELBOW
QUAD PORT x
1/2" HOSE BARB
90
°
ELBOW
20381-010
QUAD PORT x
3/4" HOSE BARB
90
°
ELBOW
STRAINERS
The above part numbers are packaged with 2 fittings per bag.
Pump Series
4305-XXX
4305-144
4325-XXX
Strainer Number
1740-012
1740-002
1740-004
1740-014
1740-000
Inlet
1/2 Barb
1/2 Barb
1/2 M Qest
1/2 M Qest
3/4 Barb
WARRANTY
Outlet
Quad Port
1/2 Barb
1/2 M Qest
Quad Port
3/4 Barb
RETURN PROCEDURE
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 year 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.
Screen
40 Mesh
40 Mesh
40 Mesh
40 Mesh
40 Mesh
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.
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
20 Icon
Foothill Ranch, CA 92610-3000
Tel: (949) 859-4945
Fax: (949) 859-1153
© Copyright 2001, ITT Industries
UNITED KINGDOM
Jabsco/Flojet
Bingley Road, Hoddesdon
Hertfordshire EN11 OBU
Tel: +44 (0) 1992 450145
Fax: +44 (0) 1992 467132
Printed in U.S.A.
CANADA
Fluid Products Canada
55 Royal Road
Guelph, Ontario N1H 1T1
Tel: (519) 821-1900
Fax: (519) 821-2569
All Rights Reserved
JAPAN
NHK Jabsco Company Ltd.
3-21-10, Shin-Yokohama
Kohoku-Ku, Yokohama, 222
Tel: 045-475-8906
Fax: 045-475-8908
Form: 81000-074
GERMANY
Jabsco GmbH
Oststrasse 28
22844 Norderstedt
Tel: +49-40-53 53 73-0
Fax: +49-40-53 53 73-11
Rev. 3/02