Parts and Material Included | Whirlpool WHCF-DUF specification

3/8" x 1/2" Faucet Adapter

Installation Instructions

For Use With Cold Water Only

NOTE: Remove items from under the sink. Place a catch basin there to collect small amounts of water that may run out when dis- connecting water supply lines.

1. Turn off cold water supply valve and remove existing fitting and/or

tubing from cold water side of faucet.

2. Loosely assemble sump to filter head and attach filter bracket.

6. Wrap Teflon® tape (2 1/2 wraps) around the 3/8” fit- ting in a clockwise direction and fasten to filter head (see Figure 5). Do not use pipe sealant (dope), as sol- vents in some types of pipe

Figure 5

dope may cause damage to plastic fittings.

3/8" Compression Hex Nut

Use this assembly to mark a location under the sink that is not in

the way but allows for easy access to change filter. Allow room to

operate housing wrench and a minimum of 2 1/2” clear space below

the unit to facilitate changing cartridge. Once this is done disassem-

ble components for installation.

7. Insert water supply line to

port marked "IN" (see

Figure 6, A) and insert

faucet line to port marked

"OUT" (see Figure 6, B).

Referring to section “Using

Red Air

Release Button

InletOutlet

3/8" Ferrule

3/8" Tube Insert

3. Determine length of tubing required from filter

head/bracket to faucet and from water supply line

to filter head/bracket by holding tubing in place

ensuring it is of appropriate length. Do not kink

tubing as this will impede water flow. If necessary,

Correct

Push-in Fittings,” insert

plastic tubing into fittings,

making sure end of tubing

is firmly seated to backstop.

Figure 6

Parts and Material Included:

1.	Filter Head	7.	3/8” Fitting x 1/2”
2.	Filter Head Bracket		Faucet Adapter
	and eight Phillips	8.	3/8” Compression
	head screws		Hex Nut
3.	Housing Wrench	9.	3/8” Ferrule
4.	Filter Cartridge	10.	3/8” Tube Insert

loop tubing around to avoid it being kinked.

Cut tubing straight with a utility knife or tube cut- ter (for copper piping). (See Figure 1.)

4.Install faucet adapter fitting to faucet (see Figure 2). Do not overtighten to prevent dam- age to fitting. Referring to section “Using Push-In Fittings”, insert a section of plastic tubing into fitting, making sure end of tubing is firmly seated to backstop.

Incorrect

Figure 1

8. Fasten bracket to filter head with four Phillips head screws provided. (See Figure 7.) Fasten bracket to wall with four Phillips head screws provid- ed. If pre-drilling holes, bracket may be used as a template for making screw hole locations.

9. Lubricate housing o-ring with water.

Figure 7

5.	Opaque Housing	11. Two 3/8” x 3/8”
6.	5’ of 3/8” Tubing	Push-In Fittings

Kit contains components necessary to connect 3/8” outlet tube to 1/2” faucet fitting and 3/8” water supply. If you have any other size faucet connection, you may need other parts for installation as required.

Tools and Parts Needed:

Gather the required tools before starting installation. Read and fol- low the instructions provided with any tools listed here.

•	Phillips Head Screwdriver	• Utility Knife or Tube Cutter for
•	Adjustable Wrench	copper piping
•	Teflon® Tape

Installation Requirements:

• Properly tighten all fittings to ensure a leak-free assembly.
•	Install in a location that is not susceptible to freezing temperatures
	as damage to the housing could occur.
•	Install away from direct sunlight as prolonged exposure to light

Figure 2

5.Onto one end of the remaining sec- tion of tubing, slide the compression

hex nut and ferrule onto the tubing and
put in the tube insert (see Figure 3).
Fasten this assembly onto 3/8” water	Figure 3
supply outlet. Do not overtighten (see
Figure 4). Overtightening will cause
tubing to separate from fitting.
	Figure 4

10. Place filter into housing. (See Figure 8.)

Align housing to filter head and screw onto filter head. Tighten with wrench to seal.

Figure 8

11.Slowly turn water supply on while depressing red air release button on filter head and check for leaks. Then run water for 5 minutes with an open faucet to flush out air.

can weaken plastic components.

“Using Push-In Fittings”

•	Some local codes may require the use of a licensed plumber or
	certified installer when disrupting a potable water line. Determine
	and follow any and all local codes and requirements.
•	Allow room to operate housing wrench and a minimum of 2 1/2”
	clear space below the unit to facilitate changing of the filter.

This filter can be used at any sink where water is used for drinking.

To Attach Tubing

Push tubing in as far as it will go. Tubing must be inserted past o-ring and hit backstop. Pull tube to ensure it is secured.

Backstop

To Release Tubing

Push in grey collet to release tubing. With collet held, pull tubing straight out.

Collet