INSTALLATION AND OPERATION MANUAL
SHURflo's Marine Duty Fresh Water Pumps were developed to endure the harsh marine environment. The patented design delivers smooth, consistent flow at all ranges of operation, while drawing low current. The balanced motor design incorporates precision ball bearings for long life, motor is equipped with an integral thermal breaker and U/L Marine listed. All Marine duty pumps have sealed switches and are finished with a Electro Coating to inhibit corrosion. Marine duty fresh water pumps are enclosed to prevent incidental moisture from entering and when installed correctly, Marine Duty Fresh Water Pumps provide years of quiet operation.
GENERAL INFORMATION
SHURflo realizes that in many instances our pump is being installed as a replacement pump within an existing system. The following guides should be considered to achieve optimum pump operation.
Mounting
· The pump can be at the same level or below the water tank. It may be positioned above the water tank if needed, as it is capable of a 6 ft. [1.8M] vertical prime. Horizontal inlet tubing will allow priming to 30 ft. [9 M].
· 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. The pump can be mounted in any position. If mounting the pump vertically, the
pump head should be in the down position.
Electrical
- The pump should be on a dedicated (individual) TYPICAL INSTALLATION circuit protected by the specified fuse indicated
on the motor label.
- A U/L approved marine duty (ignition protected) switch rated at or above 15 amps is recommended and must interrupt current flow on the positive (+ red) lead.
- The pump must be grounded to a "known ground" (battery). The ground wire must be the same size (gauge/Mm2) as the positive wire.
- Wire size (gauge/Mm2) is based on the distance from the power source to the pump. Recommended size wire is #14 gauge [2.5mm2]. For lengths of 20-50ft. [6-15M] use #12 gauge [4 Mm2].
- The total current draw on the circuit must not exceed 15 amps. If the pump is used in conjunction with other components, overload current protection (fuse or circuit breaker) and wire size must be for the total amp requirement of all devices on the circuit.
911-740 Rev G |
12/08 |
ECO #: 16135 |
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PLUMBING:
·SHURflo recommends at least 1ft. [.3M] of ½"[13mm] I.D. flexible high pressure tubing to both ports. Ideally the pump's ports/strainer should not be connected to plastic or rigid pipe. The pump's normal oscillation may transmit through rigid plumbing causing noise, and possibly loosen or crack components.
·Installation of a 50 mesh strainer such as SHURflo 255 series is recommended to prevent foreign debris from entering the pump.
SHURflo hex/swivel barb fittings provide easy removal if maintenance or access is required. The fittings are designed with a "taper-seal", creating a water tight connection when hand-tightened. Always secure barb tubing connections with properly sized stainless steel clamps to prevent leaks. Never use Teflon tape or sealing compounds on threads. Sealer may enter the pump causing a failure. Failure due to foreign debris is not covered under warranty.
·Rapid cycling may be caused by excessive back pressure created by one or more of the following within a plumbing system:
Water filters and purifiers not on separate feed lines, Flow restrictors in faucets and shower heads, Small ID lines Pipe/tubing should be at least 1/2” [13mm] for main lines, Restrictive fittings and connections (elbows, “T”’s, feeder lines to faucets, etc).
SANITIZING:
Potable water systems require periodic maintenance to deliver a consistent flow of fresh water. Depending on use and the environment the system is subject to, sanitizing is recommended prior to storing and before using the water system after a period of storage. Systems with new components, or ones that have been subjected to contamination, should also be disinfected as follows:
1.Use one of the following methods to determine the amount of common household bleach needed to sanitize the tank.
A)Multiply "gallons of tank capacity" by 0.13; the result is the ounces (oz.) of bleach needed to sanitize the tank.
B)Multiply "Liters of tank capacity" by 1.0; the result is the milliliters of bleach needed to sanitize the tank.
2.Mix into solution the proper amount of bleach within a container of water.
3.Pour the solution (water/bleach) into the tank and fill the tank with potable water.
4.Open all faucets (HOT&COLD) allowing the water to run until the distinct odor of chlorine is detected.
WINTERIZING:
If water is allowed to freeze in the system, serious damage to the plumbing and the pump may occur. Failures of this type will void the warranty. The best guarantee against damage is to completely drain the water system.
NOTE:
When used per the manufacturers recommendations non-toxic antifreeze for potable water is safe for use with SHURflo pumps. Refer to the manufacturer for their specific winterizing & drainage instructions.
CAUTION: Do not use Automotive Antifreeze to winterize potable water systems. Such solutions are highly toxic. Ingestion may cause serious injury or death.
To properly drain the system perform the following:
1.Drain the water tank. If the tank doesn't have a drain valve, open all faucets allowing the pump to operate (15 min. ON / 15 min. OFF) until the tank is empty.
2.Open all the faucets (including the lowest valve or drain in the plumbing) and allow the pump to purge the water from the plumbing, then turn the pump OFF.
3.Using a pan to catch the remaining water, remove the plumbing at the pump's inlet/outlet ports. Turn the pump ON, allowing it to operate until the water is expelled. Turn OFF power to the pump once the plumbing is emptied. Do not reconnect pump plumbing. Make a note at tank filler as a reminder: "Plumbing is Disconnected".
4.All faucets must be left open to guard against any damage.
911-740 Rev G |
Page 2 of 4 |
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