Dry Running - Johnson Pump FlowMaster WPS 5.0 Manual De Instrucciones

side [Inlet-Outlet] 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 quick disconnect fittings and oth-
er hose barbs in the system.
A strainer must be installed in line before
the pump intake to prevent debris from
entering pump and interfering with proper
functioning of valves.
electrical installation
The pump must be installed according to
ISO 10133 (Small craft – Electrical system
– Extra low voltage DC installation for con-
tinuous current). Note: The fuse must be ig-
nition protected.
The motor is equipped with built in thermal
protection to prevent the motor from over-
heating. The protection is automatically re-
stored 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 for correct installation. Negative wire
must be black. Choose wire size in accor-
dance with total wire length.
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 rated capacity to accept
amperage draw of motor. Low voltage will
cause motor to overheat.
Maintenance
The system shall be periodically sanitized
using the following procedure:
1. Fill the tank with a solution of house-
hold bleach and potable water – 1 ml (.03
oz.) bleach/1 Liter (3 oz.) water).
. Open all faucets and run until water flow-
ing smells of bleach.
3. Close all faucets
4. Drain solution from tank
Start-up procedure
After pump installation, the system can be
started by using the following procedure:
• Fill water tank
• Open one tap
• Turn on pump
• Close tap once water begins flowing
• Open each additional tap until all air has
been purged from the system
• Pump will shut off after taps are closed
and pressure builds to the set point of
the pressure switch
Self-priming
Pump is self-priming up to .5 m/8. ft. for
Flow Master 5.0. Intake lines must be air
tight to ensure self priming.

dry running

Pump will not be damaged by short periods
of dry running.
caution
Do not use pump for any other liquids than
fresh-water and sea-water.
Temperature
Max liquid temperature: +50°C/+10°F
Max ambient temperature: +60°C/+140°F
Winterizing
If water is not drained from the system dur-
ing freezing temperatures, damage is likely
to be sustained in the plumbing and in the
pump. To prevent damage follow the in-
structions beneath:
1. Drain water storage tank.
. Open all taps.
3. Run pump until remaining water is ex-
pelled.
4. Disconnect inlet and outlet tubes.
5. Run pump briefly to confirm that water
has been expelled.
6. Taps shall remain open and pump fittings
shall remain disconnected until tempera-
tures are above freezing
Never start a frozen pump. Even if it is
drained it might contain a small amount of
frozen water that locks the rotor.
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