Watts Premier ZRO-4 Installation, Operation And Maintenance Manual - Operational Parameters
System includes:
RO module, 24 volt Pump, 3 gal Storage tank, Long
reach faucet, Manual, Warranty Card, Parts Bag (2 Water
line fitting valves, 2 Washers,Transformer, 2 Mounting
screws, 1 Teflon tape roll, 2 Brass inserts, 2 Plastic
sleeves, 1 Ball valve)
If any of the items are missing please contact Watts at
1-800-752-5582 prior to installing
7/16” Drill bit for faucet
Channel lock pliers
Phillips Screw Driver
1/2” - 5/8” Open End Wrench
Adjustable Wrench
Sharp knife
Electric Drill
Tools recommended for installation
4
* Note: RO unit must be installed a minimum of 25 Pipe feet from water heater *
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
softener may lengthen the membrane life.
Do not use with water that is microbiologically unsafe or of unknown quality, without adequate
disinfection before or after the system.
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 Premier supplies speciality filters (part number 107008) that can be used if copper
tubing follows the Reverse Osmosis unit. Be sure to follow any state or local regulations during
installation.
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 85 psi a pressure regulator
is recommended and if over 100 psi then a pressure regulator is required.
Operational Parameters
Operating Temperatures:
Maximum 100°F (37.8°C)
Minimum 40°F (4.4°C)
Operating Pressure:
Maximum 85 psi (6.0 kg/cm
2
)
Minimum 40 psi (2.80 kg/cm
2
)
pH Parameters:
Maximum 11
Minimum 2
Iron:
Maximum 0.2 ppm
TDS (Total Dissolved Solids)
< 1800 ppm
Turbidity
< 5 NTU