Shurflo 2093-224-214 Installation Manual

GENERAL INFORMATION

The Silencer operates when water pressure within outlet plumbing drops below a predetermined pressure. A drop in pressure occurs when a faucet or a toilet valve is opened. When the faucet is closed, the pump shuts off as soon as the system is re-pressurized. If a f aucet is opened slightly, allowing water to flow slowly, the pump may pressurize the plumbing faster than the water is released. Depending on the plumbing and faucets installed in the boat, the pump may react by cycling rapidly (ON/O FF within 1 sec.). Rapid cycling may not indicate a problem with the pump; however, cycling should be minimized (see "Plumbing"). Installing a SHURflo Accumulator will ensure smooth, even water flow, and appropriate pump operation.

Included in the Silencer package is an in-line St rainer (P/N 170-060), which will prevent debris and foreign particles from entering t he pump. T he clear housing allows inspection at a glance. T he strainer is opened by a simple twist, and t he screen can be removed for cleaning (see System Maintenance). Do not use f or "Raw Water" applicat ions (bait- tank , wash-down etc.). Failure of t he pump due t o debris or foreign material is not covered under warranty.

SHURflo realizes that in many instances the Silencer is being inst alled as a replacement pump within an existing system. The following guidelines be should be considered t o achieve optim um pump operation.

Mounting

•

The Silencer can be at the same level or below

the water tank. The pump may be positioned above the water tank, if needed, as it is capable of a 6 ft.[1.8 M] vertical prime. Horizontal inlet tubing will allow priming to 30 ft. [9

•

Locate in a dry area that allows easy access when

maintenance is required. The pump should not be located in an area less than one cubic foot unless adequate ventilation is provided. Excessive heat may trigger the integral thermal breaker and interrupt operation. W hen the temperature drops the break er will automatically reset and start operation.

•

The pump may be mounted in any position. If

mounting the pump vertically the pump head should be in the down position so that water will not enter the motor, in the event of a plumbing leak.

•

The motor cradle mounting pads should be

fastened to a solid surface that will not amplify pump operation. The mounting pads are intended to isolate the pump from the mounting surface. Over tightening, flatt ening, or use of screws other than those provided will reduce the mounting pads ability to isolate vibration/noise.

Electrical

•

The pump should be on a dedicated (individual)

circuit protected by the speci fied "slow blow" fuse indicated on the motor label.

•

A U/L approved marine duty

rated at or above 15 amps is recommended, and must interrupt current flow on the positive (+ red) lead.

•

Wire si ze

the power source to the pump. The minimum recommended wire is lengths of 20-50 ft.

(gauge/Mm

(ignition protected)

) is based on the distance from

14 gauge [2.5Mm2]. For

[6-15M]

use #12 gauge [4Mm2].

switch

•

Plumbing

•

−−−− Water filters and purifiers

−−−− Flow restrictors in faucets and shower heads.

−−−− Small I.D. lines. Pipe/tubing should be at least

−−−− Restrictive fittings and connections (elbows, "T's",

REMOVAL AND REPLACEMENT PROCEDURE

The total current draw on the circuit must not exceed

15 amps. If the pump is used in conjunction with other components, over load current protect ion (fuse or circuit breaker) and wire size must be for the total amp requirement of all devices on the circuit.

The pump must be grounded to a "known

ground" (battery). T he ground wire must be the same size as the positive wire.

SHURflo recommends at least 1 ft.[.3M] of

½"[13mm] I.D. flexible high pressure tubing to plumb both ports. I deally, the connections at the pump's ports/strainer should not be to rigid plastic pipe. The pump's nor mal oscillation may transmit through rigid plumbing causing noise, and possibly loosen or crack components.

SHURflo swivel barb fittings (included) provide easy

removal if maintenance or access is required. The Strainer and fittings ar e designed with a "taper-seal", creating a water tight connection. 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 not covered under warranty.

Rapid cycling as described earlier may be caused

by excessive back pressure created by one or more of the following within a plumbing system:

½"[13mm] I.D. for main lin es. feeder lines to faucets, etc.)

The diversity of boat designs makes it impractical to provide a detailed procedur e for every particular craft. The following outlines a general procedure to assist with the installation.

CAUTION:

1. Turn O FF power to t he pum p.

2. Before loosening any plumbing, the water

storage tank should be shut off or drained to prevent water from siphoning out. Drain water from pressurized plumbing by opening (slightly) all valves (Hot&Cold) and leave open, allowing the plumbing to vent.

3. Disconnect electrical connections at the pump and remove mounting screws.

4. The procedure above should purge most of the water within the plumbing. A pan should be used to collect the remaining water. Disconnect the plumbing fittings and remove the pump.

Installing the

5. Hand-tighten the strainer to the inlet port until

snug, (max. torque 3 in. Lb. [.3 Nm]).

CAUTION:

tape on pump fittings. Failure due to debris or foreign material in the pump is not covered under warranty.

WATER SYSTEM MAINTENANCE

When properly installed the Silencer provides years of t rouble-fr ee operation. Marine potable water systems do require periodic maintenance to deliver a consistent flow of fresh water. Depending on use and the environment the system is subject to, the following procedures should be performed when needed.

All electrical devices in the vicinity should be turned OFF to avoid the possibility of electrical

shock if water is spilled.

6. Position the pump in its mounting location. Determine what changes (if any) are necessary to adapt the present plumbing to the pum ps' inlet and outlet ports. SHURflo recommends at least 1 ft.

] of flexible tubing with swivel barb fittings to

[.3

connect plumbing to pump ports. Hand-tighten swivel barb fitting to the inlet/outlet ports.

7. Mount the pump to a solid surface with the screws provided. Be sure not to screw through the hull.

NOTE: Over-tightening, flattening, or use of screws

other than those provided will reduce the mounting pad's ability to isolate vibration/noise.

8. Determine if the electrical circuit is properly fused

Silencer

Do not use thread sealer or Teflon

and adequate for a 15 amp load. Connect the positive (+ red) and negative (- black) wires to the pump. The connection should be water resistant and made in an area that is not subject to moisture.

9. Fill the tank with enough water to perform a check of the system (or open shut-off valve). With all f aucets open, r un the pump allowing the air to purge from the plumbing. The water heater and toilet will have to fill befor e the pump will shut-off. Close all the valves and check the plumbing/ pump for leaks.

Sanitizing

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:

Materials Required:

- Household bleach (Sodium Hypochlorite solution; 5.25%) or eq uivalent

- A clean (1) gallon [3.8 L] plastic cont ainer

- Measuring cup

- Large capacity funnel

NOTE: If the water in the tank is cont am inated, drain the tank prior to st ar t ing this procedure.

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