Operation; Type Designation; Design Features - Johnson Pump L450 Duo Übersetzung Der Originalbetriebsanleitung

Submersible bilge pump with electronic switch
Submersible bilge pump for pumping bilge water in marine environment. To be instal-
led in the keelson.
Security
• The pump may not be used for other liquid than water/bilge water.
• Always install the pump according to wiring diagram, page 16.
• Always use the fuse required, see Design features below.
• The wire connections must be sealed with a marine sealant, eg vaseline, silicone
or grease.
• Insulation or cable sheathings must be placed above the highest bilge water
level.
• Do not run dry.

Operation

See illustration page 15.
A. When the bilge water rises the magnet float (1), it floats up and the air in the float
house (2) is forced out through the vent hole (3).
B. The magnet float starts the pump (4) when bilge water reaches 50 mm. The valve
(5) closes and the magnet float stays in the start position due to vacuum inside
the float house.
C. When the bilge water has sunk to level 20 mm, air is let in through the air ope-
ning (6) in the float house. The magnet float falls down and cuts off the power.

Type designation

Pump type
Part No

Design features

Hose size
Capacity, straight
(13.6 V)
Capacity, 1 m head
(13.6 V)
Voltage
Amperage
Fuse size
Height
Max dimension
Weight
Body
Shaft
Shaft seal
Wire size
Original instructions
L450 Duo – 12 V L550 Duo – 12 V L650 Duo – 12 V L750 Duo – 12 V
32-1450D-01 32-1550D-01
L450 Duo
3/4"
49 l/min/
778 GPH
38 l/min/
601 GPH
12 V DC
2,5 A
3 A
112 mm
75x100 mm
0.40 kg
Thermoplastic
Stainless steel Stainless steel Stainless steel Stainless steel
Lip seal
0.75 mm
32-1650D-01
L550 Duo
3/4"
56 l/min/
884 GPH
45 l/min/
713 GPH
12 V DC
3 A
5 A
112 mm
75x100 mm
0.40 kg
Thermoplastic
Lip seal
0.75 mm
2 2
32-1750D-01
L650 Duo L750 Duo
3/4" 1.1/8"
61 l/min/ 73 l/min/
972 GPH 1,150 GPH
53 l/min/ 60 l/min/
844 GPH 952 GPH
12 V DC 12 V DC
3.2 A 3 A
5 A 5 A
112 mm 112 mm
75x100 mm 75x100 mm
0.40 kg 0.45 kg
Thermoplastic Thermoplastic
Lip seal Lip seal
0.75 mm 0.75 mm
2
> English
2
5