Utilitech 9008084046 Installation Instructions Download Page 1

C. Method #3: PEX (Cross-Linked Polyethylene) Piping

Wrap thread tape on the exposed threads of the appropriate size 

pipe connectors.

Using a pipe wrench, tighten the pipe connectors into the end 

of the flexible water connectors. Remove the compression nut, 

sleeve and brass insert for PEX. Place the nut over the end of the 

PEX and attach sleeve over pipe. Insert brass insert for PEX pipe 

into the end of the PEX pipe as illustrated. Place the nut, sleeve 

and insert connection assembly over threads of the connector 

fitting and tighten.  

Slide the flexible water line connector fitting over the threads of entire fitting assembly and tighten as 

illustrated. Making sure you are connecting hot to hot and cold to cold, tighten the flexible connectors 

to the plastic lined nipples installed on the water heater. Make sure all connections are tight.

8. Check to make sure the drain valve on the new water heater is closed. Then turn on the cold water 

supply and allow the water heater to fill. When the water is running at a constant flow from the hot water 

faucet, close it.

9. Check for leaks, tightening as necessary.

INSTALLATION INSTRUCTIONS

1. Turn off the electric or gas supply to the water heater.

2. Turn off the cold water inlet supply to the water heater.

3. Open a nearby hot water faucet and leave open.

4. Connect a drain hose to the drain valve of the water heater and run it to an adequate drain. Open the 

drain valve and allow the water heater to drain.

5. Detailed instructions for removal of the old water heater and locating the new one, etc., will be found 

in the new water heater’s installation and instruction manual. With the new water heater in place, 

continue with these water-piping instructions. NOTE: If you have copper piping to disconnect, cut it 

approximately 12 in. from the top of the water heater.

6. Wrap thread tape on the threads of the two plastic lined nipples and screw them into the hot and cold 

fittings of the water heater unless your water heater is already supplied with heat traps or if nipples are 

already installed (see your new water heater’s installation instructions.)

7. This installation kit will connect the water heater to the hot and cold water lines by one of the three 

methods described below:

A. Method #1: Threaded Piping

If you have ¾ in. threaded hot and cold piping the flexible 

connectors will connect directly to them. Wrap thread tape on 

the threads of the ¾ in. cold and hot water lines and then, using 

a wrench, screw flexible water connector watertight to each line. 

Then use the same procedure (checking that you are connecting 

hot to hot and cold to cold) and connect the flexible connectors 

to the plastic-lined nipples installed in the water heater making 

sure that you tighten watertight at both the connections and the 

water heater.

B. Method #2: Copper Piping

Wrap thread tape on the exposed threads of the appropriate size 

pipe connectors. Using a wrench, tighten the pipe connectors 

into the end of the flexible water connectors. Remove the 

compression nut and compression sleeve and place over the 

end of the copper water line as shown. Insert the end of the pipe 

connector and flexible water connector assembly onto the end 

of the water line. Slide the compression nut and compression 

sleeve onto the threads of the pipe connector and tighten. Making 

sure you are connecting hot to hot and cold to cold, tighten 

the flexible connectors to the plastic-lined nipples installed in the water heater. Make sure that all 

connections are tight.

PRINTED IN USA

Part 

#

321906-000

•   12 in. flexible water lines, nipples, compression fittings and  

thread tape

Universal Water Heater 

Installation Kit

Threaded End

Threaded Pipe Connections

Flexible Connector For 

Water Lines

Copper Tubing Connections

Connector Body

Compression Nut 

With Sleeve

Copper Tubing

Flexible Connector 

For Water Lines

 IMPORTANT:

 The water heater must be electrically grounded using the green grounding screw 

near the access opening. If your service wiring has only 2 wires, a wire of the proper size must be 

connected from the green ground screw to an uninterrupted metallic ground.

PEX Tubing Connections

Connector Body

Compression Nut 

With Sleeve

Flexible Connector 

For Water Lines

TOOLS NEEDED:

Two Adjustable Wrenches

PARTS:

Flexible Water Connectors

Heat Trap Nipples

Thread Tape

Garden Hose

Junction Box 

Cover

CONNECTING ELECTRICAL POWER TO YOUR NEW WATER HEATER

Make sure electrical power is OFF before working on the water heater.

1. Remove access opening cover of junction box on new electric water heater.

2. Remove the nut from the conduit clamp and insert threaded end of clamp into the small hole near the 

access opening. With nut in hand, screw nut onto the conduit clamp from the under side of opening. 

Tighten the nut by using a flathead screwdriver to push the slotted edge.

3. Make sure that electricity is OFF. Insert the electrical supply wire through the clamp so that three to four inches 

of the wire sticks out the access opening. Tighten the two screws on the clamp to secure the wiring.

4. If necessary, strip sheathing and insulation from the wires so that ½ in. of both wires are exposed. Using 

the wire nuts supplied, connect the supply wires to the water heater wiring. (See new water heater’s 

instructions on wiring to make sure you connect the right ones).

5. Look at the rating plate of your new water heater to determine it’s voltage rating.

6. If your water heater is within the 208-240 volt range, see the 240-volt wiring diagrams in your instruction manual.

7. If your water heater is within the 110-120 volt range, see the 120-volt wiring diagrams in your instruction manual.

 CAUTION:

 Some water lines may have nonmetallic pipe and fittings.

Access Opening

Wire Nut Connections

Green Ground Screw

Wire Clamp

Wire Nuts

On/Off Switch  

(120V Models Only)

Conduit To Power Supply

Check to make sure the drain valve on the new water heater is closed. Then turn on the cold water supply 

and allow the water heater to fill. When the water is running at a constant flow from the hot water faucet 

close it. Check for leaks at all connections and tighten as necessary

 CAUTION:

 Do not turn electricity on until the water heater is completely filled with water and the 

air has been purged from the tank.

OTHER CONSIDERATIONS

1. If your new water heater does not come equipped with 

a temperature & pressure relief valve; you will need to 

purchase one and install it on your water heater.

2. You may need to install a 

drain pan beneath your new 

water heater to avoid water 

damage should the tank of any 

connectors leak.

ITEM 

#

0185259

MODEL #9008084046 

¾ in. Compression Fittings

Shank Length

Pipe Wrench

Flathead Screwdriver

PEX Piping`

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