Noritz EZTR40 User guide

EZTR40 START-UP GUIDE

VENT KIT FOR TANKLESS WATER HEATER

1-866-766-7489

WWW.NORITZ.COM

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SCAN FOR

INSTALLATION VIDEO

2 VENT KIT

PRE-INSTALLATION

PLANNING INSTALLATION

Compare all parts with the Package Contents list. If any part appears missing or damaged, do not install this kit. Contact

Customer Service immediately at 1-866-766-7489.

TOOLS REQUIRED

Marker Tape

Measure

Flathead

Screwdriver

2 Inch PVC Cutter

Box Cutter

PACKAGE CONTENTS

Bag 1 Bag 2

Part Description Quantity Part Description Quantity

A Flex feeder 1 J 1

B Base junction support 1 K

4” Diffuser Gasket

Diffuser

1 L

O-ring lubricant

Diffuser gasket

1 M

45° elbow

E 1 N Screws 2

Cutting guide

1 O Aluminum tape 1

Coupler retainer

1 P

Flex pipe

Coupler O-ring

1 Q

Base junction adapter set

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3” Top flex support

R Flex sleeve 1

Rain cap adapter

4” Top flex support

Bag 3

INSTALLATION

1Remove the B-vent (from the ceiling

Measure the vent length from the

bottom of the B-Vent to the roof

termination.

down and the tank.

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Determine the size of your venting.

Is it 3” or 4”?

INSTALLATION (CONTINUED)

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4Install the base junction support based on the 3” or 4” venting structure.

3” B-vent Termination 4” B-vent Termination

Install the base junction

support onto the B-vent.

If no B-vent is protruding,

install the base junction

adapter.

Place the base junction

adapter gasket.

Screw the base junction

adapter into place.

If no B-vent is protruding,

install the base junction

adapter.

Install the base junction

support onto the B-vent.

If B-vent is protruding,

install the base junction

adapter.

Screw the base junction

adapter into place.

Install the base junction

support onto the B-vent.

4A 4B

4A1

4B1

4B2

4B3

4C1

4C2

Place the base junction

adapter gasket.

Screw the base junction

adapter into place.

Install the base junction

support onto the B-vent.

4D1

4D2

4D3

INSTALLATION (CONTINUED)

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□the B-vent to the rain cap 2 . Mark and tighten 3 .

Do not cut the

flex vent yet

6 VENT KIT

INSTALLATION (CONTINUED)

6Remove the rain cap.

WARNING

Use extreme caution when working on rooftops.

□Climb up to the roof, remove the rain cap and

place it in parts bag #2, ensuring it will not fall off.

Clean any debris from the inside of the rain cap and

B-vent.

Bag 2

8press into B-vent.

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For 3” B-vent termination For 4” B-vent termination

7 VENT KIT

INSTALLATION (CONTINUED)

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PLEASE PAUSE FOR A MOMENT

Please verify if the installation of a rain cap of different appearance will conflict with Home

If OK, please proceed with step 9.

Cut the flexpipe according to the mark. Rotate & insert rain cap adapter until

flex support is covered.

*After completion of step 9, skip steps 10 - 12 and

proceed with step 13.

Mark

1 to 3 ribs

If NOT please skip step 9 and go to step 10.

JUniversal Rain Cap

This is the default, universal rain cap that can be used to replace the former rain cap at the

installation site. It enables you to easily cut the flex pipe and install without having to take into

consideration the varying rain caps and their different fittings and sizes.

Brand Name Rain Cap

Sometimes you may run into scenarios when Home Owners Associations have rules preventing

rain caps that vary in apperance. If this is the case, you will have to use the included measuring

tool to ensure the right cut to match the existing rain cap’s specification.

If this is the case, skip step 9 and proceed to step 10.

Owners Associations rules to prevent future issues.

INSTALLATION (CONTINUED)

11 Attach the diffuser gasket for 3”

Good

Too Short Too Long

13 Install the water heater according to

the EZTR40 Installation Manual.

Ceiling

(Max. 5 feet)

(Min. 2 feet)

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12 Re-install the rain cap.

rain cap.

For 4”

Rain Cap Install 4” diffuser

gasket over the

diffuser. Insure

both gaskets are

completely touching.

4” installation

10 VENT KIT

INSTALLATION (CONTINUED)

Attach the 45° elbow to the

connector pipe until fully seated.

length (longer length better than

short). Flex vent cannot be

lengthened after this point!

required.

Tighten base junction support to

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INSTALLATION (CONTINUED)

Attach O-ring and coupler retainer.

Ensure there is no space between

the O-ring and coupler.

Remove elbow assembly from the

top of the heater and attach to the

Re-connect the elbow assembly to

the heater.

Test the system for carbon

monoxide leaks.

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