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Installation, Operation and Maintenance Manual

CAUTION

IMPORTANT NOTES

To reduce the risk associated with property damage due to water leakage:
  • 

Read and follow Use Instructions before installation and use of this system.

  •  Installation and Use 

MUST comply with all state and local plumbing codes.

  • 

Protect from freezing.  Drain filter when temperatures drop below 40°F (4.4°C).

  • 

Do not install if water pressure exceeds 125 psi (862 kPa).  If your water pressure exceeds 125 psi, you 
must install a pressure limiting valve.  Contact a plumbing professional if you are uncertain how to check 
your water pressure.

  • 

Do not install where water hammer conditions may occur.  If water hammer conditions exist you must install a 
water hammer arrester.  Contact a plumbing professional if you are uncertain how to check for this condition.

  •  The system 

must be installed on COLD water lines only, maximum temperature is 100°F (37.8°C).

  • The system 

must be installed with the inlet and outlet ports as labeled.  Make sure not to reverse connections.

  •  The disposable filter cartridge 

must be replaced every six months or at the specified service cycle.

  • 

Do not use a torch or other high temperature sources near filter or plastic fittings. 

  • 

Do not install in direct sunlight.

  • 

Do not install near water pipes which will be in path of a drilling tool when selecting the position to mount 
the bracket.

  •  Mount filter in such a position as to prevent it from being struck by other items used in the area of installation 

(waste baskets, etc).

  •  On plastic fittings, never use pipe sealant or pipe dope.  Use thread sealing tape 

only.

  • 

Ensure all tubing and fittings are secure and free of leaks.

  • 

Do not install unit if collet is missing.  Contact CUNO if collets are missing from any fittings.

  • 

SHUT OFF FUEL SUPPLY TO WATER HEATER after water is shut off.

  •  Shut off inlet water supply and depressurize system as shown in manual when changing cartridges or servicing.

  • Failure to follow instructions may void warranty.
  • Allow a minimum of 7 1/2” (19.5 cm) clear space under filter to facilitate cartridge change.
  • Do not crimp copper tubing.
  • Some state and local plumbing codes may prohibit the use of saddle-type valves and/or drain connections.  

The use of saddle-type valves are prohibited in: Alaska, Delaware, Idaho, Kentucky, Massachusetts, Michi-
gan, Minnesota, New Hampshire, North Dakota, Ohio, Oregan and South Dakota.  Check your local plumb-
ing codes for any restrictions that apply.

  • It is mandatory that safety glasses be worn during sink hole drilling operations to prevent eye injury.

2

3

Introduction

This manual explains installation and operation of the Aqua-Pure

®

 AP-RO5500 Reverse Osmosis (RO) Drinking 

Water Filtration System. Please read each section of this manual carefully.

The Aqua-Pure AP-RO5500 RO Drinking Water Filtration System is designed to connect permanently to a home 
plumbing system. To ensure that the installation conforms to your state and local plumbing codes, it is recommended 
that the installation be performed by a qualified installation specialist for RO drinking water filtration systems or a 
licensed plumber.

The RO module is shipped with a preservative solution. Make sure that you flush the system thorough-
ly as directed before the first use.
NOTE: Make sure that the Owners Warranty Record Card is filled out and mailed within 10 days of installation.

Installation Checklist and Table of Contents

1.

Determine System Location

 ..................................................................................................................... 4

2.

Prepare the Area for Installation

 ............................................................................................................... 4

3.

Prepare the Filtration System for Installation

 ............................................................................................ 4

4.

Install the Feed Water Valve and Tubing

 ................................................................................................... 5

5.

Prefill and Sanitize the Storage Tank

 ........................................................................................................ 5

6.

Install the Drain Connection

...................................................................................................................... 6

7.

Install the Faucet

 ...................................................................................................................................... 6

8.

Make the Faucet Mounting Hole

 ............................................................................................................... 7

9.

Mount the Faucet

 ...................................................................................................................................... 8

10.

Make Initial Faucet Tubing Connections

 ................................................................................................... 8

11.

Install the Purification Assembly and Storage Tank

 .................................................................................. 9

12.

Make Final Tubing Connections

 ................................................................................................................ 9

13.

Install Icemaker Hookup (optional)

 ......................................................................................................... 10

14.

Install Filter Cartridges

 ........................................................................................................................... 10

15.

Start Up the System

 ............................................................................................................................... 10

16.

Installation Troubleshooting

 .................................................................................................................... 11

17.

Maintenance

 ........................................................................................................................................... 12

18.

Parts List

 ................................................................................................................................................. 14

19.

Installation Diagrams (Figures 1-6)

 ......................................................................................................... 15

20.

Limited One Year Warranty

 ..................................................................................................................... 18

  •  Failure to follow instructions may void warranty.

IMPORTANT NOTES

Summary of Contents for AP-R05500

Page 1: ...intenance Instructions For Aqua Pure AP RO5500 Reverse Osmosis Drinking Water Filtration System Installer Please leave manual with homeowner Homeowner Please retain for operation and future maintenanc...

Page 2: ...uring the installation of this product To reduce the risk associated with eye skin and respiratory and digestive tract burns from Calcium Hypochlorite during installation Calcium Hypochlorite CAS 7778...

Page 3: ...sachusetts Michi gan Minnesota New Hampshire North Dakota Ohio Oregan and South Dakota Check your local plumb ing codes for any restrictions that apply It is mandatory that safety glasses be worn duri...

Page 4: ...e with flexible ribbed supply tubing or plastic pipe which require special hardware Soft Copper Tubing Installations A Turn off cold water valve under the sink or the main water supply valve for the h...

Page 5: ...ired to seal the sprayer connection on the existing faucet Before starting the undercounter installation procedure inspect the condition of the drain piping especially in older homes where the traps a...

Page 6: ...abinet sidewall taking into consideration the space available and the tank location Generally the tank is placed in the rear of the sink cabinet while the purification assembly is positioned toward th...

Page 7: ...ning wait and drain tank the following day Only when the tank is full should an icemaker be turned on if one is connected to the system NOTE When the system is first turned on water may intermittently...

Page 8: ...is still displayed the membrane should be replaced Recommended service life of the RO membrane is 36 months maximum To reduce the risk associated with property damage due to water leakage The disposab...

Page 9: ...ical as possible 3 8 Yellow For best flow keep tubing from Tank to RO Assembly as short as possible Faucet without Air Gap Cold Water Supply Only Storage Tank Sink Drain Red SFC Tubing 3 8 Yellow 1 4...

Page 10: ...e Garbage Disposal NEVER mount here Mount drain saddle at either location Hole should be located on top of the pipe Drain saddle elbow Drain saddles Drain Connection horizontal example C L Base plate...

Page 11: ...uct that is actually defective malfunctioning or otherwise in violation of this warranty If CUNO for any reason cannot repair a Product covered hereby within two 2 weeks after receipt of the original...

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