SHURflo RVFRESH WATER PUMP Installation And Operation Manual

SHURflo

RV FRESH

WATER

PUMP

for

use

on

RVi'Caravans

INSTALLATION

AND

OPERATION

MANUAL

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SHURflo

RV

FRESH

WATER

PUMP

Installation

and Operation Manual

Shurflo's

patented

RV Fresh Water

Pumps

for drinking

water

were

developed

to

deliver

smooth,

consistent

flow

at all

ranges

of

operation,

while

drawing

low current. The

balanced

diaphragm

design

incorporates

precision

ball

bearings

for

long

life.

Each

motor

is

equipped

with

an

integral

thermal breaker

and all

units

are CE approved. RV

fresh

water

pumps

are

enclosed

to

prevent

incidental

moisture

from

entering;

however,

they

are not

intended

for

envi-

ronments

where

splashed

water

is

present.

When

installed

correctly,

RV Fresh Water

Pumps

provide

years

of

quiet

operation.

General

Information

Sluirflo

water

pumps

meet

the essential health and

safety

requirements and are in conformity

with

the EU EMC directive 89/S36/FEC as specified in EN 55014 (1993).

Shurflo realizes

that

in

many

instances our

pump

is being installed as a replacement

pump

within an existing

system.

The following guidelines 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 or a 6 ft (1.8 m)

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 (0.03 m) unless
adequate

ventilation is provided. Excessive

heat

may trigger the integral thermal

breaker and interrupt operation.

When

the temperature drops, the breaker

will

auto-

matically

reset

and

start

the 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

in the

unlikely

event of a leak, water

will

not enter the motor.

Use

No.8 stainless steel hardware to fasten the pump. Choose a

solid

surface (thic

plywood)

that

will

not

amplify

pump operation. The mounting

feel

are intended to

isolate

the pump

from

the mounting surface; over tightening, flattening, or use of

oversized

screws

will

reduce the

ability

to isolate vibration/noise.

Electrical

The

pump should be on a dedicated

(individual)

circuit

protected by the

specified

fuse as indicated on the motor

label.

A

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 an earth (battery). The earth wire must be the same

size

(gauge/mm2) as the positive

wire.

Wire

size (gauge/mm*) is based on the distance

from

the power source to the pum|

The

minimum

recommended size wire is No. 14 gauge (2.5mm1). Lengths of 20-

50ft.

(6-15m) use No. 12 gauge (4mm).

The

total current draw on the

circuit

must not exceed 15 amps. If the pump is used ii

conjunction

with

other components, overload current protection (fuse or

circuit

breal

er) and wire size must be for the total amp requirement of all devices on the

circuit.

Plumbing

Shurflo

recommends at least 1 ft. (0.3m) of 1/2" (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 is recommended to prevent foreign debris

from

entering the pump.
The

Shurflo

In-Line

Strainer (1/B and 2/B) has a

twist-lock

feature

allowing

simple

cleaning

when plumbed

with

flexible

tubing.

Shurflo

swivel

barb fittings provide easy removal if maintenance or access is

required.

The fittings are designed

with

a "taper-seal", creating water tight connec-

tion

when hand

tightened.

Always

secure barb tubing connections

with

properly

sized

stainless steel clamps to prevent leaks. Never use

Teflon

tape

or sealing

com-

pounds on threads. Sealer may enter the pump causing a

failure.

Failure

due to foi

eign

debris is not covered

under

warranty.

Rapid

cycling

may be caused by excessive back pressure created by one or more o

the

following

within

a plumbing system:

•

Water filters and purifiers not on

separate

feed

lines.

•

Flow

restrictors in

taps

and shower heads.

•

Small

I.D.

lines.

Pipe/tubing should be at least 1/2" (13mm) I.D. for main

lines.

•

Restrictive fittings and connections (elbows,

"T's",

feeder lines to laps, etc.)

Switch

Shut-Off

Restrictions

in a plumbing system may cause the pump to rapid

cycle

(ON/OFF

within

2 sec.) during low

flow

demands.

Cycling

should be

minimized

to prevent

pulsating

flow,

and to achieve maximum pump

life.

To

determine if adjustment is necessary, turn tap on to lower than average

flow

of

water. The pump should

cycle,

but its "OFF time" must be 2 sec. or longer. If the

cycling

is correct, leave

well

enough alone. If the pump is

cycling

rapidly

increase

the setting by turning the screw

clockwise

(1 1/2 turn

MAX.)

until

the pump oper-

ates

for 1 sec.

with

at least 2 sec. "OFF time"'. If

cycling

cannot be

minimized

con-

sider

removing plumbing restrictions or

simply

install a Shurflo

Accumulator.

Sanitizing

Fresh

water systems require periodic maintenance to deliver a consistent

flow

of

fresh

water. Depending on the use and the environment the system is subject to, san-

itizing

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 house-

hold

bleach needed to sanitize the lank.

A)

Multiply

"gallons (UK) or lank capacity" by 0.156; the result is ounces of

bleach

needed to sanitize the tank.

B)

Multiply

"litres of lank capacity" by 1; the result is the

millililres

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

fresh water.

4.

Open all laps (HOT &

COLD)

allowing

the water to run

until

the distinct odour

of

chlorine is detected. •»

5. The standard solution must have four (4) hours of contact

lime

to disinfect

com-

pletely.

Doubling

the solution concentration allows for contact

lime

of (1) hour.

6.

When

the contact time is completed, drain the tank.

Refill

with

fresh water and

purge the plumbing of all

sanitizing

solution.

NOTE:

The

sanitizing

procedure outlined above is in conformance

with

the

approved

procedures of the

U.S.

Public

Health

Service.

:~'MD

ENGLISH

www.vwT25camper.info - a useful website for owners and enthusiasts of VW T25 / T3 / Vanagon Campervans