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BLASTER' SERIES WASH-DOWN PUMP
INSTALLATION AND OPERATION MANUAL
SHURfIo's Blaster series pumps are designed to handle the harsh
marine environment. Blaster motors have precision ball bearings
supporting the armature. Each motor is protected by an integral thermal
breaker, and are all U/L Marine listed. Blaster pressure switches are
sealed and the motors are finished with a baked-on polyurethane
coating to inhibit corrosion. The "Pro-Blaster" motor is sealed in an
exceptionally tough epoxy powder coated finish, allowing it to be in
environments where "splashed water" may be present. Blaster series
pumps are enclosed to prevent incidental moisture from entering;
however, they are not submersible units.
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The Blaster delivers water on demand. With the spray nozzle off
(output
side closed)
the pump will turn off. As the nozzle is opened the pressure
within the
hose (output side)
drops. Once the pressure drops below a
predetermined point the pumps pressure switch closes and the pump
operates. With the nozzle set at a fine mist the pump will cycle, as it is
able to pressurize the hose faster than water being released. If the spray
nozzle is held wide open the pump will operate continually. The pump
may momentarily operate even after the nozzle is closed, as it
pressurizes the hose. Once the pressure setting is reached the switch
opens and the pump stops.
DUTY CYCLE
Wash-down pumps are rated for intermittent duty (only), as they operate at higher than average pressures. Operating a pump continuously for more
than twenty (20) minutes, within an hour period, is not recommended. Actual duty cycle is determined by amp draw, temperature, and rate of cycling.
NOTE: Rapid cycling should be minimized to ensure long life. Rapid cycling is defined as
ON/OFF
within two seconds.
911
-
444
Rev. E 10/98
MOUNTING
• Consider a dry location that allows easy access
if maintenance is required. The pump should
not be located in an area of less than one cubic
foot unless adequate ventilation is provided.
Excessive heat may trigger the integral thermal
breaker and interrupt operation. When the
temperature drops the breaker will automatically
reset and start operation.
• Mount higher than the outside water (sea)
level. The pump is capable of a 6 ft. [2M]
vertical prime above the outside water level.
The pump can be mounted in any position. If
mounting the pump vertically, the pump head
should be in the down position.
CAUTION: Do not drive screws through the
vessel's hull.
• Use #8 stainless steel hardware to fasten the
pump. Choose a solid surface
(bulkhead or
stringer)
that will not amplify pump sound. The
mounting feet are intended to isolate the pump
from the mounting surface; over-tightening,
flattening, or oversized screws will reduce the
mounting pads ability to isolate vibration/noise.
ELECTRICAL
• The pump should be on a dedicated
(individual)
circuit protected on the positive (+
red) lead with the proper size "slow blow"
fuse. For all
12VDC
pumps use a 15 amp
fuse, on 24vDc pumps use a 10 amp fuse.
The total current draw on the circuit must not
exceed 15 amps.
• An ignition protected switch (U/L approved
marine duty) rated at or above 15 amps is
recommended, and must interrupt current flow
on the positive (+ red) lead.
CAUTION: Use of "open" type switches (not ignition
protected) may cause an explosion of fuel vapors.
• Wire size (gauge/me) is based on the distance
from
the power source to the pump. The
minimum recommended wire size is #14 gauge
[2.5Mm2 ]. For lengths of 20-50 ft.[6-15M] use #12
gauge [4mm 2].
• The pump must be grounded to a "known
ground" (battery). The ground wire must be
the same size as the positive wire.
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