American Plumber W38-PRA User Manual

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Undersink Water Filter
Installation and Operating Instructions
Model W38-PRA
NOTE: This filter housing does not include a filter cartridge
Specifications
Temperature Range: 40–100°F (4.4–37.7°C)
Pressure Range: 30–125 psi (2.1–8.62 bar)
Parts Included:
• Filter housing assembly
• Instructions
Precautions
WARNING:
Do not use with water that is microbiologically unsafe
or of unknown quality without adequate disinfection before or after
the system.
CAUTION:
Filter must be protected against freezing, which can
cause cracking of the filter and water leakage.
CAUTION:
The rubber o-ring provides the water-tight seal between
the cap and the bottom of the housing. It is important that the o-ring
be properly seated in the groove below the threads of the housing or
a water leak could occur.
CAUTION:
Because of the product’s limited service life and to
prevent costly repairs or possible water damage, we strongly
recommend that the bottom of all plastic housings be replaced every
ten years. If the bottom of your housing has been in use for longer
than this period, it should be replaced immediately. Date the bottom of
any new or replacement housing to indicate the next recommended
replacement date.
CAUTION:
Clear housings may crack or craze in time causing failure
and leakage if exposed to organic solvents such as those found in
aerosol sprays for cleaning products and insectides.
Tools and Materials
Required
• 3/8" compression elbows
and fittings for copper pipe
• 3/8" plastic Tubing
• Teflon
®
tape
• File
• Pencil
• Screwdriver
• 2 adjustable wrenches
• Pipe cutters or hacksaw
• WW38 housing wrench
(optional)
NOTE:
• For cold water use only.
• Do not install where system will be exposed to direct sunlight.
• Make certain that installation complies with all state and local
laws and regulations.
• The contaminants or other substances removed or reduced by
the selected cartridge are not necessarily in your water. Ask your
local water municipality for a copy of their water analysis, or have
your water tested by a reputable water testing lab.
• After prolonged periods of non-use (such as during a vacation) it
is recommended that the system be flushed thoroughly. Let water
run for 5–6 minutes before using.
• The filter cartridges used with this system have a limited service
life. Changes in taste, odor, and/or flow of the water being filtered
indicate that the cartridge should be replaced.
• Some harmless bacteria may attack cellulose media cartridges.
If your cartridge seems to disintegrate or develops musty or
moldy odor, switch to a synthetic media cartridg or consult the
manufacturer.
145561 Rev E 12/04

American Plumber W38-PRA Specifications

General

Brand	American Plumber
Model	W38-PRA
Category	Water Dispenser
Language	English

Summary

Specifications and Parts

Specifications

Details temperature and pressure ranges for the water filter housing.

Parts Included

Lists the components provided with the water filter housing assembly.

Important Precautions

Microbiological Safety

Warning against using the system with microbiologically unsafe water without disinfection.

Freezing and Leak Prevention

Cautionary notes on protecting the filter from freezing and ensuring proper o-ring seal.

Housing Replacement Recommendation

Recommends replacing plastic housings every ten years to prevent damage.

Chemical Exposure Warning

Warns that clear housings may crack when exposed to organic solvents.

Tools and Materials

Required Tools

Lists tools needed for installation, including wrenches and tubing tools.

Installation Notes

Provides essential usage notes like cold water only and compliance with local laws.

Installation Steps

Turn Off Water and Release Pressure

Instructions to shut off the cold water supply and open a faucet to relieve pressure.

Mounting Bracket and Housing Placement

Guidance on using a bracket to mount the housing, ensuring clearance for cartridge changes.

Pipe Preparation and Fitting Assembly

Steps for cutting pipe, deburring, and assembling compression fittings with tubing.

Connect Tubing to Housing

Instructions for connecting the filter housing using plastic tubing and compression fittings.

Water Turn-On and Air Purging

Procedure for turning on water supply, filling the filter, and releasing trapped air.

Filter Cartridge Replacement

Procedure for Replacement

Detailed steps for turning off water, removing the housing, cleaning, and inserting a new cartridge.

Troubleshooting Leaks

Guidance on resolving leaks between the cap and housing, or at inlet/outlet connections.

Parts and Warranty Information

Replacement Parts List

Lists available replacement parts for the water filter housing and contact information.

Product Warranty Details

Outlines the five-year limited warranty terms, exclusions, and customer responsibilities.