Installation Guide

23
APEC RO SYSTEM FLOW DIAGRAM
5th Stage Filter
PRODUCT
WATER
TANK
FAUCET
MAIN
WATER
SUPPLY
FEED WATER
NEEDLE VALVE
MAIN WATER SUPPLY
SHUT-OFF VALVE
CARBON
PRE-FILTER
CARBON
PRE-FILTER
SEDIMENT
PRE-FILTER
2nd Stage
3rd Stage
1st Stage
CHECK VALVE
(BUILT IN)
4th Stage
R.O. MEMBRANE
PRODUCT WATER
IN
OUT
FLOW RESTRICTOR
(BUILT IN)
INLET
TEE
FITTING
TANK
BALL
VALVE
AUTO SHUT-OFF
VALVE
TO WASTE WATER
DRAIN
BRINE
Part I: RO BASICS
This section provides basic concepts on how an RO system works, how it performs in relation to your
house’s water condition. We hope this information helps keep your RO system running at top
performance for years to come.
1) Basic Terms
GPD = Gallons Per Day (flow rate)
PSI = Pounds per Square Inch (pressure)
TDS = Total Dissolved Solids (contaminants)
PPM = Parts Per Million (unit used to measure TDS level)
TDS Meter = A digital meter for measuring the TDS level in the water
2) Flow Diagram for 5-Stage RO System:
Fig.15 below shows how water flows through the RO system from Feed point to Output point.
Input water starts from Main Water Supply, going through stages 1, 2, 3 pre-filters, then enters the
stage-4 membrane. Product (filtered) water from the membrane feeds the storage tank; the “brine
water” from the membrane drains out through the drain line. Product water from the tank passes
through stage-5 filter before reaching the dispensing faucet.
Fig. 15
23
A
PEC R
O
SYSTEM FL
O
W
DIAG
G
G
RAM
RAM
RAM
5th Sta
g
e Filter
PR
O
D
U
CT
WA
TER
A
A
TA
NK
FA
UCET
M
AIN
WA
TE
A
A
R
SUPPL
Y
L
L
F
EED
WA
TER
A
A
N
EEDLE
VA
LV
E
MAIN
WA
TER SUPPLY
A
A
SH
U
T-
O
FF
V
ALV
E
C
ARB
O
N
PRE-
FIL
T
E
R
CARBCARBCARB
ON
ONON
E-
PRE-
E-
I
FI
FI
T
LT
ER
ERER
S
EDIMEN
T
PRE-
FI
LT
ER
2nd Sta
ge
3rd3rd
3rd
Stag
Stag
Stag
e
e
e
1st Stag
e
CHEC
CHE
CHE
K
V
ALV
E
(B
(B
(BUI
LT IN
)
4
t
h
Stag
e
R.
O
. MEMBRAN
E
PR
O
D
U
CT
WA
TER
A
A
I
N
OU
T
FLOW
RES
TRIC
TO
R
(
BUILT IN
)
INLE
T
TEE
F
ITTIN
G
TAN
K
BALL
VA
LV
E
AU
T
O
SH
U
T-
O
F
F
VA
LV
E
TO
TO
TO
W
WA
W
STE
STE
E
WA
WA
WA
TER
T
A
A
A
DRAIDRAI
DRAI
N
N
N
BRINE
P
a
rt I: R
O
BA
S
I
C
S
This section provides basic concepts on how an RO system works, how it per
f
orms in relation to you
r
house’s water condition. We hope this in
f
ormation helps keep your RO system running at top
pe
r
f
ormance
f
or
ye
ars to come.
1)
Basic Terms
GPD = Gallons Per Day (
f
low rate
)
P
SI = Pounds
p
er S
qu
are Inch
(p
ressur
e)
TDS = Total Dissolved Solids (contaminants
)
P
PM = Parts Per Million (unit used to measure TDS leve
l)
TDS Meter = A digital meter
f
or measuring the TDS level in the wate
r
2)
Flow Diagram
f
or 5-Stage RO System:
F
i
g.15 below shows how water
f
lows through the RO system
f
rom Feed point to Output point.
I
nput water starts
f
rom Main Water Supply, going through stages 1, 2, 3 pre-
f
ilters, then enters the
s
t
ag
e-4 membrane. Product
(f
iltere
d)
water
f
rom the membrane
f
eeds the stora
ge
tank; the “brine
water”
f
rom the membrane drains out through the drain line. Product water
f
rom the tank passes
through stage-5
f
ilter be
f
ore reaching the dispensing
f
aucet
.
Fig. 1
5