Noritz America EZ2FVK-1 Installation Manual
NORITZ AMERICA
DANGER
Installation Manual
CORPORATION
Vent Kit for Condensing Tankless Gas Water Heater
[Applicable Model]
[EZTR40] NRC663-FSV
•
Model: EZ2FVK-1
Potential dangers from accidents during installation and use are divided into the following three categories.
Closely observe these warnings, they are critical to your safety.
WARNING
CAUTION
DANGER
Never use this Vent Kit other than for the Applicable Model (including the model manufactured by others)
designated in this manual.
(Flex Vent 2" Kit 25 feet)
DANGER indicates an imminently hazardous situation which, if not avoided,
will result in death or serious injury.
WARNING indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury.
•
[EZTR50] EZ98DV (GQ-C2859WX-FF US)
•
[EZTR75] EZ111DV (GQ-C3259WX-FF US)
WARNING
If the information in this manual is not followed exactly, a fire or explosion may result causing property
damage, personal injury or death.
Do not install only with the EZTR Start-up Guide. Read this manual also before installation.
Prohibited
Be sure to do
CAUTION
Requests to Installers
This manual is for the vent components for the designated tankless water heater. For the installation
of the Tankless Water Heater itself, read the installation manual packed with it.
In order to install this vent kit correctly, read this installation manual carefully, and follow the installation instructions.
Failures and damage caused by erroneous work or work not as instructed in this manual are not covered by the warranty.
Check that the installation was done properly in accordance with this installation manual upon completion.
After completing installation, place this installation manual in a plastic pouch and attach it to the side of the
water heater, or hand it to the customer to retain for future reference.
Installation must conform with local codes, or in the absence of local codes, the National Fuel Gas Code, ANSI Z223.1
/NFPA54-latest edition.
Noritz America reserves the right to discontinue, or change at any time, the designs and/or specifications of its
products without notice.
EZ2FVK-1-LT
Rev. 01/17
SBB80TX
1
1.General Information
Property damage, personal injury or death can result if these instructions are not followed. They are a guide for
professional installers generally familiar with the installation and maintenance of heating equipment and related vent
systems.
Flex Vent 2" Kit is designed only for the installation inside of B-Vent as sleeve.
Do not use it for other installation method. Also do not use it outdoor.
Do not use for anything other than designated Tankless Water Heater (including the model manufactured by
others).
Flex Vent 2" Kit can be installed at zero clearance to combustible materials.
Appliances can be started up immediately after Flex Vent 2" Kit is installed and inspected.
Flex Vent 2" Kit vent systems expand and contract slightly during heating cycles and
must be installed following included instructions.
Keep Flex vent greater than 40F(5) during installation.
Damage will occur if handled or installed at lower temperatures.
Information regarding certification of "Flexible vent pipe and connections".
Standard(s) ULC-S636-08 Standards for type BH Gas Venting Systems
Product
Brand name Living Engineering Co., Ltd.
25Feet-Flex Pipe 2"-LE , Flex Vent 2" Rigid 45 Elbow Set - LE
40°F
(5°C)
2
2.Included Accessories
The following accessories are included.
Check for any missing items before starting installation.
Bag
"Step-1"
Bag
"Step-2"
Part Shape Q'ty
Flex Feeder 1
Base Junction Support
Clamp x3
Base Junction
Adapter Set
Top Flex support 1
Universal Rain Cap 1
Part Shape Q'ty
Installation Manual
(This document)
1
EZTR 25 Feet
Start Up Guide
1
Flex Pipe 2"
approximately 25 feet
Flex Sleeve 1
1
1
1
Bag
"Step-3"
Rigid 45 Elbow SET 1
Flex 2" Vent Gasket 1
Fastening Screws 2
Aluminum tape 1
3
3.General Safety
DANGER
WARNING
Checkup
If similar flexible vent has already been installed, it must be replaced with this designated new Flex Vent Kit.
Flex Vent 2" Kit is designed only for installation inside of B-Vent wall. Do not use it for other installation method.
Also do not use it outdoor.
Only approved for use with the designated B-Vent manufactures.
If the Rain Cap and B-Vent itself are damaged by corrosion, it must be replaced with new ones.
Before installation, make sure no nails or screws have penetrated the inner B-Vent wall where the flexible vent will be installed.
Those obstructions may damage the flexible vent and may result in fires, property damage or exposure to Carbon Monoxide.
Do not reuse the flexible vent once it has been installed, removal of the vent may have caused damage to the flexible vent.
Keep Flex vent at a temperature greater than 40F(5).
Material temperature is not less than 40F(5) during installation.
Damage will occur if handled or installed at lower temperatures.
If the temperature if below 40F(5) it's recommended that you store the flexible vent in a warm room or car for 30 minutes.
If you find that the flexible vent is still stiff, you may need to use a hair dryer and warm both ends of the pipe to prevent breakage.
Make sure components are kept under these following conditions.
※ Clean and dry place.
※ Above 40F(5)
※ Keep out of direct sunlight.
Minimum bend radius should be more than 7 inch.
Handle the flexible vent carefully.
Dropping, Crushing and Stacking may cause damage, and may result in fires, property damage or exposure to Carbon Monoxide.
Flex Vent 2" Kit cannot be painted.
Avoid places where open flame are common, such as those where gasoline, benzene and adhesives are handled, or places in
which corrosive gases (ammonia, chlorine, sulfur, ethylene compounds, acids) are present.
Avoid installation in places where dust or debris will accumulate.
Dust may block the air-supply opening, causing the performance of the device fan to drop and incomplete combustion may occur as
a result.
r>7 inch
40°F
(5°C)
Avoid installation in places where special chemical agents (e.g., hair spray or spray detergent) are used.
For your safety, do not attempt to work on a rooftop until safety precautions have been identified and proper fall safety measures
have been taken, including the use of ladders or stairways, and personal protective equipment (PPE).
Installation in windy or wet conditions require additional precautions. Follow local safety regulations.
4
CAUTION
Check for any damage to components that may have occurred during transportation before installation.
Consult with the customer regarding the location of installation.
Do not install this Flex Vent 2" Kit in a place where it may be subject to falling objects, such as under shelves.
Flex Vent 2" Kit vent systems expand and contract slightly during heating cycles and must be installed
according to supplied instructions.
4.Before Installation (Check the condition of installation site)
Check that the following items are "(OK) Can be installed" before installation.
If all items are "(OK) Can be installed", proceed to the next step, "6. Installation".
PAUSE FOR A MOMENT
Verify if the installation of a rain cap of different appearance will conflict with Home Owners
Associations rules to prevent future issues.
If NOT, contact customer service at 1-866-766-7489 to purchase optional installation kit for
the existing Rain Cap.
Check point Can be installed(OK) Cannot be installed(NG)
1. Vent system.
Vent system is used by 1 appliance only
No
Common vent
Yes
(If Yes to protruding screws or nails,
flex vent cannot be installed.)
Mark "ゝ" if each
condition is matched.
2. No Screws or
nails protruding
within the B-Vent
5
Check point Can be installed(OK) Cannot be installed(NG)
Round
3.B-Vent shape
4.B-Vent diameter 3" or 4" 5" or larger
5ft or less More than 5 ft
5.Horizontal distance
between B-Vent
connection from the
ceiling and the unit is
no more than 5ft.
Oval
Mark "ゝ" if each condition
is matched.
6.Vent length from the
top of unit to the rain
cap.
25 feet or less More than 25 feet
If you need more than 25 feet of Flex pipe
contact Noritz America 1-866-766-7489
6
Check point Can be installed(OK) Cannot be installed(NG)
More than 40(5)
40(5) or less
*Refer to page 4
7.Ambient
temperature where
unit is installed.
40°F
(5°C)
Mark "ゝ" if each condition
is matched.
8. Accessibility to
Rain Cap
Can access Rain Cap
Cannot access Rain Cap(High
pitch etc.)
7
5.Sample of the Venting system
The pictured image of the system consisted of this Vent Kit and the explanation of the name of the
components
The image of the Flex Vent 2" Kit system is as listed below.
Only when the venting components and the water heater are installed correctly, the customer can use the
hot water correctly and safely.
The numbers before the names of the components are corresponding to the same component names as in
step "6. Installation".
䐣A Base Junction Adapter
䐣B Screws
䐟 Universal Rain Cap
Step-2
䐠 Top Flex Support
䐡Flex Pipe 2”
䐢 B-Vent
Installation tool
Flex Feeder
䐪
Conversion Kit for
EZTR50, EZTR75
䐥 Flex Sleeve
䐧
Flex Vent 2" Gasket
䐣
Base Junction Adapter Set
Step-1
䐤 Base Junction Support
䐤 A B-Vent
Clamp
䐤 B Flex Sleeve
Clamp
䐤 C Flex Pipe
Clamp
Step-3
䐦 Rigid 45
Elbow Set
Fastening Screws
Flex Vent 2" Conversion Kit
䐫
䐨
䐩 Aluminum tape
8
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