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Food Service Reverse Osmosis System

Copyright © Puretec Pty Ltd 2019

Care and Maitenance

To Care for the RO System

The components of the RO system are designed to function with minimal maintenance. 

However, the membrane elements and filters will need to be replaced on a regular schedule.

For optimal performance the system should be flushed for 2 minutes after extended periods of 

inactivity.

The Reverse Osmosis System has a monitoring device for TDS. To verify that the system is 
performing satisfactorily turn on the TDS Meter by pressing the RED Power button on the top 
left corner. Press on the OUT button to view the Outlet TDS level.

Replacement of Prefilter and Postfilter

The carbon/sediment prefilter reduces sediment and

 certain chemicals, such as chlorine, from 

the water. Depending on water use and the amount of impurities, this filter should be replaced 

every six to twelve months for point-of-use applications.

Whenever the prefilter is replaced, the postfilter should also be replaced.

Installations using more than 1,000 litres of water per day should install external filters (not 

supplied) to reduce, sediment, chlorine and sediment larger than 10 microns.

Replacement of RO Membrane Elements

The functional life of the RO membrane elements will vary based on feed water quality. Product 
water should be tested periodically to verify the membrane elements are performing properly. 
For most point-of-use applications, the RO membrane elements should be replaced every two 
to four years.

Note

: Softened water is recommended for optimal system performance and RO membrane 

element life.

Replacement of the Prefilter, Postfilter, and RO Membrane Elements

1. 

Turn off the water supply to the RO System.

2.  Reduce system water pressure by opening a tap down steam, or using the holding 

tank connection.

Caution

: Even with the water supply turned off the membrane and prefilter sumps will 

contain a considerable amount of water. By positioning the a tray or bucket under the 

system, most of the water will be contained.

3. 

Undo Membrane Housing Cap by hand, and remove used membrane (pliers may be 

required) Open the seal/packaging on the new membrane, insert the double o-ring end 

of the membrane first. Tighten the cap by hand only. Turn the water on and flush the 

system for 3-5 minutes.

Summary of Contents for CO-RO3

Page 1: ...APR2019 User Guide Food Service Reverse Osmosis Water Treatment System CO RO3 For correct operation installation it is essential to observe these instructions...

Page 2: ...Pty Ltd 2019 What s Inside Safety Guides 3 The Food Service Reverse Osmosis System 3 Before Installation 4 Tools Materials Required 4 Location of System 5 Installation 6 Care Maintenance 8 Operating C...

Page 3: ...hot or cold temperatures Temperature of the water supply to the reverse osmosis system must be between 4 C 40 F and 38 C 100 F Do not install on hot water lines All new membranes must be flushed for...

Page 4: ...ressure etc Refer to the specifications to determine if your installation is within the limits A water quality analysis can be performed to determine if incoming water requires any treatment Contact y...

Page 5: ...not exposed to freezing temperatures Do not expose unit or tubing to direct sunlight Water Supply To provide supply water to the RO system inlet a feed supply fitting is required or install pipe fitt...

Page 6: ...n 1 5 Air Gap Required Above Flood Rim Inlet white Drain Tube black RO Assembly kg cm2 psi 15 200 150 100 50 0 10 5 0 AUTO SHUT OFF IN IN OUT OUT P O W E R Outlet Holding Tank Connection optional RO M...

Page 7: ...Valve is in the OFF position 6 Rotate the Needle Valve in a counterclockwise motion until the valve is in full Bypass mode 7 Turn on the water supply slowly until the system has filled with water 8 R...

Page 8: ...es of water per day should install external filters not supplied to reduce sediment chlorine and sediment larger than 10 microns Replacement of RO Membrane Elements The functional life of the RO membr...

Page 9: ...m Operating Conditions Condition Minimum Maximum Inlet Pressure 300 kPa 875 kPa Inlet Temperature 4 C 38 C Inlet TDS 2 000 mg L Inlet Hardness 150 ppm Inlet Iron 0 mg L 0 1 mg L Inlet Manganese 0 mg L...

Page 10: ...centrate water runs to drain continuously Plugged prefilter Plugged prefilter Replace plugged prefilter Consider sediment prefilter for non chlorinated applications Leak in product line Find and repai...

Page 11: ...the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure Warranty New Zealand This warranty is given by Puretec Ltd Reg No 44643...

Page 12: ......

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