Wiring Table; Wiring Dimensions - Johnson Pump SPX WPS 5.0 12/24 V DC Manual De Instrucciones

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Pressure and capacity data
(based on water at +20°C/68°F and at full
voltage of the motor)
Flowmaster
Pressure Flow
Bar kPa Psi l/min USGPM
0 0 0 19.4 5.1
0.4 40 6.2 18.2 4.8
0.8 80 11.6 17
1.2 120 17.4 15.8 4.2
1.6 160 23.2 14.7 3.9
2 200 29 13.5 3.6
2.4 240 34.8 12.2 3.2
2.8 280 40.6 11.2 3
Fuse required

Wiring table

Max 0.2 m
+
–
Black
Green/yellow
Other electrical devices, eg switch, circuit
breaker, must be installed between the pump
and the positive (+) lead on the battery (on the
red wire).

Wiring dimensions

(based on 3% voltage drop)
Wire Size
2.5 mm² #14 AWG
4 mm² #12 AWG
6 mm² #10 AWG
10 mm² #6 AWG
16 mm² #4 AWG
*The wire length is the total distance from the
battery to the pump and back to the battery.
It is recommended to use a relay with a light wire
from main cable to switch to shorten the main
leaders.
12
Amp. draw
12 V
3.9 A 1.6 A
4.9 A 2.1 A
4.5 6 A 2.5 A
7.1 A 3.1 A
8 A 3.6 A
9.2 A 4.1 A
10.3 A 4.7 A
11.2 A 5.1 A
15 A
Red
Terminal
Switch
fuse
Pump
Max wire
length* in
meters
12V
5.2
8.4
12.6
21
33.6
Service instructions
Change of Switch
1. Remove the screws and then remove the
complete switch including diaphragm.
2. Remove the cables from the motor cable
and power source.
3. Take the new switch and attach the cables
24 V
to motor and power source.
4. Locate the new diaphragm and then the
new complete switch.
Change of Diaphragm kit
1. Remove the screws with a Torx #20 tool
(a standard Phillips driver type screw
#20 tool). (Screws should be fitted to the
through holes which can be seen on the
8 A
backside of the motor end bell).
2. Separate the pump assembly from motor.
3. Remove the screws with a Torx #20 tool
(a standard Phillips type screw driver #20
tool).
4. Hold the black pumpbody towards the
ground. Carefully remove the diaphragm
kit from pump body. Ensuring that posi-
tions still remains together with pump
body.
5. Locate the diaphragm kit into pump body
and mount the five short screws into the
threaded holes in the motor flange.
6. Mount the complete pumphead kit onto
the motor coupling flange taking notice to
fit the slot in cam in right position against
motor shaft and the three slots on motor
end bell.
7. Assemble the remaining long screws
which will hold the motor/pump unit to-
gether. Screws should be fitted to the
through holes that can be seen on the
backside of the motor end bell).
Change of complete Pump kit
1. Remove the screws and then remove
24V complete switch including diaphragm.
23 2. Remove the cables pos from the motor
cable and power source.
3. Remove the screws with a Torx #20 tool
(a standard Phillips type screw driver #20
tool). Screw has a through hole on the
backside of the motor end bell).
4. Separate the pump assembly from the
motor.
Original instructions