English; Typical Applications; Installation And Maintenance - Johnson Pump F4B-19 12/24 V DC Manual De Instrucciones

ENGLISH

Self-priming, flexible impeller pump flange mounted to
DC motorn 12/24 V

Typical applications

Bilge pump, fresh water pump, deck
washing, fuel oil transfer, fire pump, etc.
Design features
Body:
Impeller:
Shaft:
Seal:
Connection: 1/2" BSP/NPTF
Liquid
temperature: Max +80°C
Motor:
The motor is ignition protected
according to ISO 8846 (Small craft
- Electrical devices - Protection against
ignition of surrounding flammable
gases).
Type designation
Type
F4B-19 (BSP)
F4B-19 (BSP)
Pressure and capacity data
(based on water at 20°C and at full
voltage of the motor)
Bar kPa l/min
0 0 48,4
0,1 10 47,0
0,3 30 42,3
0,6 60 34,8
0,9 90 23,9
1,2 120 11,2
Fuse required
6
Bronze
Nitrile
Stainless steel
Lip seal
or 1" hose (ø 25 mm)
0,25 kW, 12/24 V DC
with built in thermal
protection
Part No
12 V 10-24512-01
24 V 10-24512-02
Ampere draw
12 V
USGPM
12,8 13,7 A 6,7 A
12,4 14,0 A 6,9 A
11,2 15,0 A 7,6 A
9,2 16,5 A 8,4 A
6,3 18,3 A 9,3 A
3,0 19,6 A 9,9 A
25 A 15 A

Installation and maintenance

Installation
Pump may be mounted in any position
without loss of efficiency; however, it is
suggested that the pump head be down
if vertical mounting is desired. Mount
motor as close as possible to power
source to obtain full voltage.
The pump should be installed so that
the motor is protected from rain or
wash down.
When using a vac-on-switch, mount
it on the connection on the inlet side of
the pump. When using a pressure
switch, mount it on the connection on
the outlet side of the pump.
Electrical installation
The pump must be installed according
to ISO 10133 (Small craft - Electrical
system - Extra low voltage DC installa-
tion for continuous current). Note: The
fuse must be ignition protected.
The motor is equipped with built in
thermal protection to prevent the
motor from overheating. The
protection is automatically restored
when the motor is cooled.
If the pump is connected with
separate earth lead, this should be
yellow/green and connected to the
motor base.
See the wiring table (next page) for
correct installation. Negative wire must
24 V
be black.
Choose wire size in accordance with
total wire lenght (see table next page).
The wire connections must be sealed
with a marine sealant.
Note: Before installation with
electrical control systems, check that
equipment to be used is of sufficient
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