Electrical Installation - Johnson Pump WPS 3.4 UNO Manual Del Usuario

Pressure and capacity data
WPS 3.4 Uno
(based on water at 20°C/68°F and at full
voltage of the motor)
Pressure Flow
.
Bar psi lit/min USGPM
0 0 13 3,4
0,4 6,2 12,2 3,2
0,8 11,6 11,4 3,0
1,2 17,4 10,6 2,8
1,6 23,2 9,9 2,6
2,0 29 9,1 2,4
2,4 34,8 8,5 2,2
2,8 40,6 7,7 2,0
WPS 5.0 Uno
(based on water at 20°C/68°F and at full
voltage of the motor)
Pressure Flow
Bar psi lit/min USGPM
0 0 19,4 5,0
0,4 6,2 18,2 4,8
0,8 11,6 17,0 4,5
1,2 17,4 15,8 4,2
1,6 23,2 14,7 3,9
2,0 29 13,5 3,6
2,4 34,8 12,2 3,2
2,8 40,6 11,2 3,0
Installation and maintenance
Installation
1. Locate the pump in a dry location.
If the pump is mounted vertically, the
motor shall face up.
2. Mark screws position and drill pilot holes
(see drilling template page 39).
3. Mount the pump using stainless steel
screws taking care not to over compress
the vibration damping rubber feet.
4. Reinforced, high-pressure flexible tubing
(3/4") is recommended. If rigid pipe is
used, a length (225 mm/9 inches minimum)
of flexible tubing shall be installed between
the pump and the rigid pipe. This will
address noise and/or damage caused by
vibration transmitted to rigid pipe. Use
stainless steel hose clamps to secure tubing
to filter and accumulator tank.

Electrical installation

The pump must be installed according to ISO
10133 (Small craft – Electrical system – Extra
low voltage DC installation for continuous
current). Note: the fuse must be ignition
protected.
The motor is equipped with built in thermal
Amp. Draw
overload protection to prevent the motor
12V 24V
from overheating. The protection is
2,3A 1,0A
automatically restored when the motor is
3,1A 1,3A
cooled.
4,0A 1,7A
If the pump is connected with separate earth
4,8A 2,1A
5,4A 2,5A lead, this should be yellow/green and
6,2A 2,8A
connected to the motor base. See wiring table
7,0A 3,1A
for correct installation.
8,1A 3,6A
Negative wire must be black. Choose wire size
in accordance with total wire length (see
table).
The wire connections must be sealed with a
marine sealant.
Note: Before installation with electrical
Amp. Draw
control systems, check that equipment to be
12V 24V
used is of sufficient rated capacity to accept
3,9A 1,6A
amperage draw of motor. Low voltage will
4,9A 2,1A
cause the motor to overheat.
6,0A 2,5A
7,1A 3,1A
8,0A 3,6A
9,2A 4,1A
Wiring table.
10,3A 4,7A
11,2A 5,1A
Other electrical devices, eg switch, circuit
breaker, must be installed between the pump
and the positive (+) lead on the battery (on
the red wire).
Max
0.2 m
Terminal
+
–
fuse
Black
Pump
Green/yellow
ENGLISH
Red
Switch
9