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Riverflow Swim Current Systems

Installation & Product Guide

inc

Overview of Riverflow® System

Riverflow® Installation Instructions

Plumbing & Electrical Instructions

Motor Installation Illustration

Pump Dimensions

Plumbing & Installation Illustration

Vault & Return Detail

Weir Detail

Riverflow® Control Wiring

Plumbing Option A

Plumbing Option B

Plumbing Option C

Fittings & Dimensions

Start Up

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2

3

4

5

6

7

8

9

10

11

12

13

14

Table of Contents

Item Description Page Number

®

1

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Overview of Riverflow® System

The Riverflow®The Riverflow® system is composed of five elements. The following is a brief description of each:

The Riverflow® Pump is an ultra high volume, axial flow, propeller pump. All wetted components are chlorine impervious. The external components are corrosion proof aluminum

alloy, thermoplastic and stainless steel to insure long life in any environment. Our pump is

silent, energy efficient and includes a 5 year warranty.

The electric motor is designed for continuous industrial operation. Our motors are totally enclosed and fan cooled. The copper windings are IRIS™ insulated for variable frequency

operation. The motor is weatherproof and will deliver many years of silent, flawless

performance.

The Variable Frequency Drive is the brain of the system that allows the user to control the current generated by the pump. Our VFD is working behind the scenes to provide system

protection and control. This feature rich unit provides full time ground fault protection (GFCI) ,

a Line Reactor , for input voltage anomalies, an internal cooling fan and an array of

sophisticated power transmission and diagnostic components. The user- friendly remote

control keypad features a lighted LED readout and can be operated up to 120 feet from the

VFD.

The Current supply weir and safety grate are in compliance with national safety standards. Flush mounted in a vertical wall, the weir collects a large cross section of current

which passes through the gate at less than 1.5 feet per second.

The Trueflow return assembly is computer designed to provide optimum flow from the pump. This component delivers the current into the pool with flow characteristics best suited

for counter-current swimming and aquatic exercise.

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2

Riverflow®Riverflow®

Installation InstructionsInstallation Instructions

The Riverflow® pumpThe Riverflow® pump

The Riverflow® pump should be set so that the top of the return outlet on the pump is 6” below

the pool’s waterline. Never operate the pump unless the pool is full of water.

Thrust bracing (see pipe installation guide) should be placed beneath the pump, weirs, and

fittings. See Pipe Installation Guide.

If the pump head is installed below grade, a 40” x 40” vault should be formed around the pump

head, allowing access to the flange bolts and pump head assembly. The floor of the vault

should allow 2” clearance beneath the flange nuts. There should be no standing water above

the flange nuts.

Motor InstallationMotor Installation

The motor is bolted to the pump after the entire system has been set and the concrete work is

finished.

Make a reference mark on the side of the motor and another mark on the top of the motor

mount directly adjacent to the center of one of the four mounting bolt holes. These marks will

be used for future alignment.

Press down firmly (do not strike) on the top jaw of the coupling to insure that the jaws are set

snugly against the red urethane spider.

The motor shaft key should be held in place with a rubber band or tape and aligned with the

key way in the top jaw of the coupling.

With an Allen wrench, back out (counter clockwise) the set screw in the top coupling jaw.

Carefully slide the motor shaft into the bore of the coupling without resting the weight of the

motor on the top of the coupling. The motor will then seat perfectly into the recess machined

into the motor mount.

Align the reference marks on the side of the motor and the top of the motor mount and install

the four 1/2” stainless steel bolts with the lock washer against the motor mount and the flat

washer against the bolt head and tighten securely. Do not use excessive torque.

With an Allen wrench, tighten the top and bottom coupling set screws and the motor

installation is complete.

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3

PlumbingPlumbing

The top of the supply weir should be set in a pool wall a minimum of 18” below waterline.

The 12” supply pipe to the pump can be up to 60’ in length with a maximum of three long radius 90

degree elbows.

The top of the Trueflow diffuser weir (return) should be set in a pool wall 6” below waterline.

The 10” return pipe to the pool can be up to 80’ in length with a maximum of four long radius elbows.

IPS Weldon #719 white solvent cement, P-70 primer and #4020R swab applicators should be used for

all pipe joining.

A 10”x12” reducing bushing must be cemented to the 10” nipple at the bottom (supply end) of the

Riverflow® pump. The entire supply line must be of 12” schedule 40 or class 125 PVC pipe and

fittings. Always use long radius elbows and where possible, use two 45’s rather than one 90 degree

bend. Keep pipe free of all debris.

Bevel and clean all cut ends of pipe before cementing into fittings.

ElectricalElectrical

To ensure safety and the execution of the Riverflow® warranty, a licensed electrician, certified in the

installation of ABB VFD’s, must install all the electrical components of the Riverflow® system in

compliance with national and local building and safety codes.

The motor must be wired for CCW (counter clockwise rotation) and for 230 volts.

The parameter values on the VFD (variable frequency drive) must be set so that the drive’s output

does not exceed the motor’s nameplate maximums.

Refer to the wiring diagrams and technical manual for complete wiring and operation instructions.

If the motor is covered, allow adequate ventilation.

Never install the VFD in direct sun or inside a non-ventilated enclosure.

The standard VFD enclosure is NEMA 1 rated for indoor installation free of conductive dust and

dripping water. Enclosure upgrades in NEMA 12 and NENA 4 are available upon request at an

additional cost.

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The motor shaft key should be held in place with

a rubber band or tape and aligned with the key-

way in the top jaw of the coupling .

The motor is bolted to the pump after the entire

system has been set and the concrete work is

finished.

To help with alignment, make a reference mark

on the side of the motor and the top of the motor

mount directly adjacent to one of the four

bolt holes .

MOTOR

INSTALLATION

Press down firmly (do not strike) on the top jawof the coupling to insure that the jaws are setsnugly against the red urethane spider .

Motor

Motor

Shaft Key

Motor

Mount

Motor Mount

Holes

A

A

BB

G

C

C

D

F

G

G

H

E

With an Allen wrench, back out (counter clockwise)the set screw in the top coupling jaw.

ReferenceMarks

Motor

Bolt & Washers

Shaft

Coupling

Pet

Cock

With an Allen wrench, tighten the top and bottomcoupling set screwsand the motor installation iscomplete.

Align the motor shaft key with the key-way in the

coupling and carefully slide the motor shaft into

the bore of the coupling without resting the weight

of the motor on the top of the coupling. The motor

will then seat perfectly into the recess machined

into the motor mount. Check the reference marks

made earlier to ensure that the clearance holes in

the motor mount align with the threaded holes in

the bottom face of the motor.

Install the four " stainless steel bolts with the lock

washer against the motor mount and the flat washer

against the bolt head and tighten securely.

Do not use excessive torque.

12 F

4

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E

D

B

16 "1

2

14 "1

2

10 "3

4

11 "5

8

6 "1

2

8 "1

4

8 "3

4

11 "7

8

2 "3

4

7.5 HP

5 HP

22 "3

4

33 "3

4

5"

PUMP

DIMENSIONS

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5

Wate

r L

evel

6"

M

inim

um

10"

PV

C P

ipe

12"

PV

C P

ipe

10"

Couplin

g

12"

Couplin

g

18"

14"

16"

18"

Min

imum

40"

Co

pin

g &

De

ck

Co

ncre

te T

hru

st

Blo

ckin

g

22 "

3424

"3

4

Dra

in

Th

e R

ive

rflo

w®

pu

mp

mu

st b

e s

et

so t

ha

t th

e

top

of

the

re

turn

ou

tlet

on

th

e p

um

p is

a m

inim

um

of

6”

be

low

th

e p

oo

l’s w

ate

rlin

e.

Th

is w

ill e

nsu

re

ad

eq

ua

te p

osi

tive

su

ctio

n h

ea

d.

T

his

pu

mp

is n

ot

self

prim

ing

.

The top o

f th

e s

upply

weir s

hould

be s

et in

apool w

all

a m

inim

um

of 18”

belo

w w

ate

rlin

e.

Th

e 1

2”

su

pp

ly p

ipe

to

th

e p

um

p c

an

be

up

to

40

’ in

le

ng

th w

ith

a m

axim

um

of

thre

e lo

ng

ra

diu

s 9

0 d

eg

ree

elb

ow

s.

The 1

0”

retu

rn p

ipe to the p

ool can b

eup to 8

0’ i

n length

with a

maxim

um

of

fou

r lo

ng

ra

diu

s e

lbo

ws.

Th

e t

op

of

the

Tru

eflo

wd

iffu

ser

we

ir (

retu

rn)

op

en

ing

sh

ou

ld b

e s

et

in a

po

ol w

all

6”

be

low

wa

terlin

e.

A 1

0”x

12”

reducin

gbushin

g m

ust be

cem

ente

d to the

10”

nip

ple

at th

ebottom

(supply

end)

of th

e R

iverf

low

pum

p.

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PL

UM

BIN

G &

IN

ST

AL

LA

TIO

N

6

40"

6"

14"

16"

Wate

r L

evel

Co

pin

g &

De

ck

2"

2"

Lip

7.5

HP

5 H

P

22 "

3424 "

34

Dra

in

Form

an 1

8"

x 1

8"

x 3

"concre

te c

olla

r if p

um

ph

ea

d is a

bo

ve

gra

de

.

The R

iverf

low

pum

p s

hould

be s

et so that th

eto

p o

f th

e r

etu

rn o

utlet on the p

um

p is 6

” belo

wth

e p

oo

l’s w

ate

rlin

e.

Th

is w

ill e

nsu

re a

de

qu

ate

positiv

e s

uction h

ead. T

his

pum

p is n

ot self

prim

ing.

N

eve

r o

pe

rate

th

e p

um

p u

nle

ss

th

e p

ool is

full

of w

ate

r.

If p

um

p h

ead is

blo

w g

rade, a 4

0”

x 40”

concr

ete

vault

should

be form

ed

aro

un

d t

he

pu

mp

he

ad

, a

llow

ing

acc

ess

to

th

e f

lan

ge

bo

lts a

nd

pu

mp

he

ad

ass

em

bly

. T

he flo

or

of th

e v

ault

should

allo

w 2

” cl

eara

nce

beneath

the

flange n

uts

. T

here

should

be n

o s

tandin

g w

ate

r above

the fla

nge n

uts

.

VA

ULT

& R

ET

UR

N D

ETA

ILwww.current-systems.com

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7

2“

60"

19"

20"

20"

12"Diameter

Nipple

8"

48"

20"

19"

20"

12"Diameter

Nipple

8"

16"10"

DiameterNipple

16"

14"

12"

RETURN WEIR

COMPETITION MODEL 60" SUPPLY WEIR

ELITE MODEL 48" SUPPLY WEIR

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8

WEIR DETAIL

MA

IN, O

RS

UB

PA

NE

L

230V

10

L1

230V

10

L2

VF

D

GR

OU

ND

GR

OU

ND

T1

T2

T3

T1

T2

T3

DIS

CO

NN

EC

T

BO

X

G

30 M

OT

OR

These d

raw

ings, concepts

, and d

eta

ils c

onta

ined h

ere

in a

re the o

rigin

al pro

prieta

ry d

esig

ns o

f C

urr

ent S

yste

ms, In

c., d

evelo

ped

over

many y

ears

of experience in the p

ool and s

pa industr

y a

nd a

s s

uch a

re p

rote

cte

d b

y the c

opyright la

ws o

f th

e U

nited S

tate

s G

overn

ment.

Repro

duction o

f any o

f th

e a

bove w

ithout w

ritten p

erm

issio

n to d

o s

o b

y C

urr

ent S

yste

ms, In

c. is

ille

gal.

Contr

ol W

irin

g

NO

TE

:T

his

schem

atic is for

conceptu

al purp

oses o

nly

.To e

nsure

safe

ty a

nd the e

xecution o

f th

eR

iverf

low

warr

anty

, a lic

ensed e

lectr

icia

n,

cert

ifie

d in the insta

llation o

f V

ariable

Fre

quency

Drives m

ust in

sta

ll all

the e

lectr

ical com

ponents

of th

e R

iverf

low

syste

m in c

om

plia

nce w

ith

national and local build

ing a

nd s

afe

ty c

odes.

The m

oto

r m

ust be w

ired for

CC

W (

counte

r clo

ckw

ise r

ota

tion).

Re

fer

to th

e w

irin

g d

iag

ram

s a

nd

te

chn

ica

l ma

nu

al f

or

com

ple

tew

irin

g a

nd

op

era

tion

inst

ruct

ion

s.

If t

he

mo

tor

is c

ove

red

, a

llow

ad

eq

ua

te v

en

tila

tion

.

(Variable

Fre

quency D

rive)

Riv

erflo

w®

Elit

e 5H

P / 3

1 A

MP

S / 2

30 V

AC

Riv

erflo

w®

Com

petit

ion

7.5

HP

/ 4

6 A

MP

S / 2

30 V

AC

9

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R

Inp

ut

Cu

rren

t

40"

Pool Center Line

2"Lip

Pools more than 25' long can accommodate

same end supply and return.

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12

PLUMBING OPTION C

R

14

Start-up

Never operate the pump unless the pool is full of water.

Be sure all pipe, weirs and fittings are free of debris.

Fill the pool with water up to normal operating level.

Open the petcock located on the top of the Riverflow pump.

Make sure all fasteners are properly tightened.

Place an amp meter on one of the motor leads.

Set the Maximum Frequency parameter on the VFD to 25 Hz

By hand, rotate the pump shaft coupling to be sure it is secure and

that the shaft turns freely.

Start and stop (bump) the pump to establish CCW (counter clockwise rotation). This

is determined by your view being from the end of the pump opposite the shaft. If the

direction of rotation is clockwise, reverse two of the three load leads between the

VFD and motor and repeat the bump test.

With CCW rotation established, start the pump. Close the petcock when all the air in

the system has bled out.

The pump will “ramp” up slowly to full speed.

Referring to the amp meter on a motor lead, you may increase the output VFD's

frequency (HZ) until the FLA (fully loaded amps) value on the motor’s nameplate has

been reached. Enter this value as the Maximum Frequency parameter.

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