Watts PWRO4ZRO - Manual (Page 3)

3
Operating Temperatures Maximum 100°F (37.8°C) Minimum 40°F (4.4°C)
Operating Pressure
Maximum 85psi
(6.0 kg/cm2)
Minimum 40psi
(2.80 kg/cm2)
pH Parameters Maximum 11 Minimum 2
Iron Maximum 0.2 ppm
TDS (Total Dissolved Solids) < 1800 ppm
Turbidity < 5NTU
Operational Parameters
Do not use with water that is microbiologically unsafe or of
unknown quality without adequate disinfection before or after
the system. System is intended to be installed on the cold water
line only.
Contents of Reverse Osmosis (RO) System
1 Tank
1 RO Module
1 Parts Bag – With a 10" Final Filter
1 Faucet Bag
1 Manual
If any of the items are missing please contact prior to installing.
Tools Recommended for Installation
• 1¼" Hole Saw Bit for Faucet opening
• Round Knockout Punch for Stainless
Sinks 1¼"
• Adjustable Wrench
• Sharp Knife
•
1 ⁄
2
" & 5 ⁄
8
" Open End Wrenches
• Phillips Screw Driver
• Needle Nose Pliers – Adjustable Pliers
• Electric Drill
•
1 ⁄
8
" Drill Bit
• 1 ⁄
4
" Drill Bit
• 3 ⁄
8
" Drill Bit
Hardness: Recommended hardness not to exceed 10 grains per
gallon, or 170ppm . System will operate with hardness over 10 grains
but the membrane life may be shortened . Addition of a water soft-
ener may lengthen the membrane life .
Water Pressure: The operating water pressure in your home should
be tested over a 24 hour period to attain the maximum pressure .
If the incoming water pressure is above 85psi a pressure regula-
tor is recommended and if over 100psi then a pressure regulator is
required .
Copper Tubing: Reverse Osmosis water should not be run through
copper tubing as the purity of the water will leach copper causing
an objectional taste in water and pin holes may form in the tubing.
Watts supplies speciality filters that can be used if copper tubing
follows the Reverse Osmosis unit . Be sure to follow any state or local
regulations during installation .
Note: RO unit must be installed a minimum of 25 Pipe feet from
water heater.
***IMPORTANT NOTICE***
System was tested in a laboratory setting utilizing a hot water
heater of 40 gallons set at 120°F. Performance may vary if
your heater is smaller than 40 gallons or set above 120°F,
contact the manufacturer for additional details.
System should not be used on homes equipped with a back-
flow prevention on the hot water heater. This device is 100%
efficient, as no water is lost to drain in the production of the
RO water.
Drill a Hole for the Faucet in a Porcelain Sink
Note: Most sinks are predrilled with 1½" or 1¼" diameter hole
that you can use for your RO faucet. (If you are already using it
for a sprayer or soap dispenser, see Step 2).
Caution: Porcelain sinks are extremely hard and can crack or
chip easily.
Use extreme caution when drilling. Watts accepts no responsi-
bility for damage resulting from the installation of faucet.
Step A – Determine desired location for
the RO faucet on your sink
and place a piece of masking
tape on over where the hole is
to be drilled . Mark the center
of the hole on the tape .
Step B – Using a variable speed drill
set on the slowest speed, drill
a 1 ⁄
8
" pilot hole through both
porcelain and metal casing
of sink at the marked center
of the desired location . Use
lubricating oil or liquid soap
to keep the drill bit cool (If drill
bit gets hot, it may cause the
porcelain to crack or chip) .
Step C – Using a 1¼" hole saw, pro-
ceed to drill the large hole .
Keep drill speed on the slow-
est speed and use lubricating
oil or liquid soap to keep the
hole saw cool during cutting .
Step D – Make sure the surroundings
of the sink are cooled before
mounting the faucet to the
sink after drilling and remove
all sharp edges .
STEP 1
Punch a Hole for the Faucet in a Stainless
Steel Sink
Note: If mounting faucet to a Stainless
Steel Sink, you will need a 1¼" Hole
Punch. The faucet opening should be
centered between the back splash
and the edge of the sink, ideally on the
same side as the vertical drain pipe.
Step A – Drill a ¼" pilot hole. Use a 1 ⁄
2
"
Hole Punch and an adjustable
wrench to punch the hole in the
sink. Change to the 1¼" Hole
Punch to enlarge the hole
The faucet can now be installed .
OR