Installation Manual NORITZ AMERICA CORPORATION CONDENSING TANKLESS GAS WATER HEATER EZ111DV (GQ-C3259WX-FF US) EZ98DV (GQ-C2859WX-FF US) 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. DANGER WARNING CAUTION DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
1. Included Accessories Q’ty Part Anchoring Screw 7 Owner's Guide, Warranty, Installation Manual (this document) 1 each Remote Controller (See p. 44) 1 Remote Controller Cord (6ft (2m)) 1 Wall Mounting Bracket 1 Part 2 The following accessories are included with the unit. Check for any missing items before starting installation.
2.
3. Quick Connect Multi System Installation • The Quick Connect Multi System allows the installation of two units together utilizing only the Quick Connect Cord. The Quick Connect Cord is 6 ft.(2m) long. Install the units 3-18" (75-457mm) apart from each other to ensure the cord will be able to reach between the units. (See Typical Plumbing diagram).
4. Before Installation DANGER Checkup • Check the fixing brackets and vent pipe yearly for damage or wear. Replace if necessary. WARNING Precautions on Vent Pipe Replacement • The vent system will almost certainly need to be replaced when this appliance is being installed. Only use vent materials that are specified in this Installation Manual for use on this appliance. Refer to the "Venting the Water Heater" section for details.
5. Choosing Installation Site * Locate the appliance in an area where leakage from the unit or connections will not result in damage to the area adjacent to the appliance or to the lower floors of the structure. When such installation locations cannot be avoided, a suitable drain pan, adequately drained, must be installed under the appliance. The pan must not restrict combustion air flow. * As with any water heating appliance, the potential for leakage at some time in the life of the product does exist.
CAUTION • • • • Install the water heater in a location where it is free from obstacles and stagnant air. Consult with the customer concerning the location of installation. Do not install the water heater near staircases or emergency exits. Install the water heater in an area that allows for the proper clearances to combustible and non-combustible construction. Consult the rating plate on the appliance for proper clearances.
6. Installation Clearances WARNING Before installing, check for the following: Install in accordance with relevant building and mechanical codes, as well as any local, state or national regulations, or in the absence of local and state codes, to the National Fuel Gas Code ANSI Z223.1/NFPA 54 – latest edition. In Canada, see the Natural Gas and Propane Installation Code CSA B149.1 - latest edition for detailed requirements.
Outdoor Installation Item Check Illustration • Maintain the following clearance from both combustible and non-combustible materials. Required Clearances From Heater 24" (600mm) or more 36" (900mm) or more Surrounding the area of installation 3" (75mm) or more • When installing the unit in a common side corridor, provide a clearance of 47" (1,190mm) or more in front of the unit. • Set the bottom edge of the exhaust port about 84" (2,130mm) from the corridor floor.
Clearance Requirements from Vent Terminations to Building Openings * All clearance requirements are in accordance with ANSI Z21.10.3 and the National Fuel Gas Code, ANSI Z223.1 and in Canada, in accordance with the Natural Gas and Propane Installation Code CSA B149.1.
Clearance Requirements from Vent Terminations to Building Openings * All clearance requirements are in accordance with ANSI Z21.10.3 and the National Fuel Gas Code, ANSI Z223.1 and in Canada, in accordance with the Natural Gas and Propane Installation Code CSA B149.1.
7. Installation Be sure to do • The weight of the device will be applied to the wall. If the strength of the wall is not sufficient, reinforcement must be done to prevent the transfer of vibration. • Do not drop or apply unnecessary force to the device when installing. Internal parts may be damaged and may become highly dangerous. • Install the unit on a vertical wall and ensure that it is level.
Typical plumbing (Direction of the isolation valve) Intake Pipe Exhaust Pipe Water Supply Valve Pressure Relief Valve Water Drain Valve (with Water Filter) Elevation Adjustment Above 2,000ft • Adjust the dip switches as illustrated in the table to the below if this water heater is installed at an altitude of 2000 ft. (610m) or higher. • Disconnect power to the water heater before changing the dip switches.
8. Venting the Water Heater WARNING Be sure to do CARBON MONOXIDE POISONING Follow all vent system requirements in accordance with relevant local or state regulation, or, in the absence of local or state code, in the U.S. to the National Fuel Gas Code ANSI Z233.1/NFPA 54 – latest edition, and in Canada, in accordance with the Natural Gas and Propane Installation Code CSA B149.1 – latest edition. Indoor Installation when using PVC/CPVC/PP material General Requirements • This is a Category IV appliance.
Maximum Vent Length Adjustment Dip switches The unit can be adjusted to accommodate longer vent runs; refer to the below table to find the maximum vent length based on the number of elbows. Adjust the dip switches according to the vent condition noted in the tables below. Note: By default, the unit has been set to the " 1 short length using 2" (50mm) pipe" condition. When adjusting the dip switches for longer vent runs, the BTUH input of the appliance will be reduced by up to 9%.
Venting With PVC, CPVC or PP This appliance can be vented with non cellular core plastic pipe materials as specified in the below table. Vent installations in Canada which utilize plastic vent systems must comply with ULC S636. Item Material Schedule 40 PVC PVC-DWV Schedule 40 CPVC United States Canada ANSI/ASTM D1785 CSA B137.3 Exhaust Vent/Air Intake ANSI/ASTM D2665 CSA B181.2 ANSI/ASTM F441 CSA B137.
Vent Pipe Installation Horizontal Vent Termination - PVC/CPVC Material Only (when using PVT-HL termination) Ceiling Exterior Wall PVT-HL Hanger Straps Intake 3"(75mm) * 1' Minimum Exhaust **2"×3" Increaser coupling 3" (75mm) Intake Slope the Vent Upward 12"(300mm) above grade or above snow line 3" (75mm) Interior Wall Exhaust Ӎ 3ft. Min * 1' Minimum recommended, but not required. ** 3" (75mm) pipe and 2"×3" Increaser couplings require when using PVT-HL.
Vent Pipe Installation Alternate Horizontal Vent Termination- PVC, CPVC or PP Material * When 3’ (0.9m) distance between Intake and Exhaust cannot be ensured. * Can not use Hood termination (PVT-HL) * Insert the bird screen. 90° elbow vertical setting (downward). * Ensure at least 3ft (0.9m) or more distance between the near edge of the air intake pipe or exhaust pipe to the inside corner of a wall. * Intake and exhaust should face the same direction. Intake and exhaust should keep the same pressure zone.
PVC Concentric Termination- PVC/CPVC Materials Only • The concentric termination may be shortened, but not lengthened from its original factory supplied length. • 2"(50mm) or 3" (75mm) PVC or CPVC pipe may be used with the concentric termination. Maintain the same vent pipe diameter from the water heater flue to the termination. • Do not exceed the maximum vent lengths as shown on next page 20.
Vertical Plastic Rain Cap* (PRC-1) *Not supplied with water heater, order separately. PRC-1 3" (75mm) pipe 2"×3" increaser coupling Increaser coupling** **Not supplied with water heater, order separately. 2" (50mm) pipe 12" (30cm) 3" (75mm) pipe and 2"×3" increaser coupling requires when using PRC-1.
Vent Pipe Installation (When supplying combustion air from the indoors (SV, non-direct vent)) DANGER When installing this water heater in an area with a large amount of lint such as a commercial Laundromat, direct-vent ("-DV") system must be used. The "-SV" configuration (using SV conversion kit) is prohibited. When installing this water heater in a mobile home, all combustion must be drawn directly from the outdoors. The "-SV" configuration (using SV conversion kit) is prohibited.
Combustion Air Supply combustion air to the units as per the National Fuel Gas Code, ANSI Z223.1-latest edition and in Canada, in accordance with the Natural Gas and Propane Installation Code CSA B149.1-latest edition. Provide adequate combustion air so as to not create negative pressure within the building. • Provide two permanent openings to allow circulation of combustion air.
Indoor Installation when using 2" flexible polypropylene WARNING Be sure to do Be sure to do CARBON MONOXIDE POISONING Follow all vent system requirements in accordance with relevant local or state regulation, or, in the absence of local or state code, in accordance with the National Fuel Gas Code ANSI Z223.1/NFPA 54 or Natural Gas and Propane Installation Code CSA B149.1. • During the installation of Flex Vent 2” Kit (EZ2FVK-1 and EZ2FVK-2), ambient temperatures must be greater than 40 °F (5 °C).
General Requirements • Flex Vent 2" Conversion Kit (EZ2-CK) must be used when using 2" flexible polypropylene pipe for vent pipe installation. Refer to the instructions provided with Flex Vent 2" Conversion Kit for additional detail. • Under normal conditions, this appliance will not produce an exhaust flue temperature in excess of 149°F. Refer to page 23 for additional requirements. • Make sure the vent system is gas tight and will not leak.
Installation of Flex Vent 2" Conversion Kit Flex Vent 2" Conversion Kit (EZ2-CK) 1. Secure the "Flex Vent 2" Conversion Kit" to top of the water heater*. * Refer to the instructions provided with "Flex Vent 2" Conversion Kit" for additional detail. (Note): Flex Vent 2" Conversion Kit must be installed in the proper direction as shown left. 2. Disconnect power and turn on dip switches No.2 and 3. Refer to page 28 for the location of the dip switch bank.
WARNING This unit is suitable only for vertical vent. Vertical Vent Termination with Polypropylene N-Flex system • Terminate at least 3’ (0.9m) from the combustion air intake of any appliance and any other building opening. Storm Collar Roof Flashing • Enclose exterior vent systems below the roof line to limit condensation and protect against mechanical failure.
Combustion Air Supply combustion air to the units as per the National Fuel Gas Code, ANSI Z223.1-latest edition and in Canada, in accordance with the Natural Gas and Propane Installation Code CSA B149.1-latest edition. Provide adequate combustion air so as to not create negative pressure within the building. • Provide two permanent openings to allow circulation of combustion air.
Outdoor Installation • When installing this water heater outdoors, must be used "Outdoor Vent Cap (VC-6)". • Disconnect power and then turn ON dip switch #2 if outdoor installation. • Make sure the clearance of the water heater in accordance with page 9 (Outdoor Installation). * Dip switch No.2 is turned on. Disconnect power to the water heater before changing the dip switches. Failure to perform this step will result in a “73” code displayed on the remote controller and a cease in operation.
9. Gas Piping Follow the instructions from the gas supplier. CAUTION The guidelines and examples we have provided in this manual section are for reference only. The sizing and installation of the gas system for this water heater, as with any gas appliance, is the sole responsibility of the installer. The installer must be professionally trained to do such work and must always follow all local and national codes and regulations. Gas line sizing calculations must be performed for every installation.
WARNING Pressure Test The appliance and its gas connections must be leak tested before placing the appliance in operation. The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than ½ psig (3.5 kPa). We do not recommend pressure testing in excess of ½ psig (3.5kPa).
Table 1. For Less than 8” WC initial supply pressure Maximum Natural Gas Delivery Capacity (0.
Table 3. Maximum Undiluted Propane (LP) Delivery Capacity in Thousands of BtuH (0.
) 7 0 5 3 4 0 10. Water Piping Installation and service must be performed by a qualified plumber. In the Commonwealth of Massachusetts, this product must be installed by a licensed plumber or gas fitter in accordance with the Massachusetts Plumbing and Fuel Gas Code 248 CMR Sections 2.00 and 5.00. Observe all applicable codes. This appliance is suitable for combination potable water and space heating applications. It cannot be used for space heating applications only.
Supply water piping • Do not use PVC, iron, or any piping which has been treated with chromates, boiler seal or other chemicals. • Mount a check valve and a shut off valve (near the inlet). • In order for the client to use the water heater comfortably, 15 to 150 PSI* (103.4 to 1034 kPa) of pressure is needed from the water supply. Be sure to check the water pressure. If the water pressure is low, the water heater cannot perform to its full capability, and may become a source of trouble for the client.
Water Treatment If this water heater will be installed in an application where the supply water is hard, the water must be treated with either the Noritz ScaleShield or a water softener. Refer to the below tables for suggested treatment and maintenance measures to be taken based on the water hardness level. If this water heater will be installed in an application where the supply water is hard, Scale Build-up may cause damage to the Heat Exchanger.
How to select the Service Reminder This water heater is equipped with an automatic service reminder to announce for flushing the Heat Exchanger. The factory default of this service reminder is OFF. The customer or installer needs to set the service reminder to ON or OFF. If the service reminder is selected to ON, the code "C1#*" will displayed on the remote controller after the set time period has been reached.
Procedure for Flushing the Heat Exchanger This procedure is only intended for use by a qualified service professional or authorized Noritz Service Representative. Any unauthorized use of this procedure may result in voiding the warranty.Please contact Noritz America (866-766-7489) for additional support. If the alarm code “C1#*” is flashing on the Remote Controller, it means there is Scale Build-up in the Heat Exchanger.
䍾㻼㼞㼛㼏㼑㼐㼡㼞㼑㻌䠎㻚㻌 Flushing the Heat Exchanger㻌㻙㻌㻲㼛㼞㻌㻿㼕㼚㼓㼘㼑㻌㼁㼚㼕㼠䍿 1. Open the Front Cover. 2. Connect the blue connector**** marked "FLUSH" for flushing near the Circuit Board. Water Heater Connect Circuit Board FLUSH **** The connector color is blue and labeled “FLUSH”. CCC 3. Then the code “CCC” is displayed on the Remote Controller. 4. Turn on the circulating pump to circulate the flushing solution through the water heater for 1 hour at a rate of 1.5 gallons per minute or more. 5.
㻵㼚㻌㼏㼍㼟㼑㻌㼛㼒㻌㼠㼔㼑㻌䇾㻽㼡㼕㼏㼗㻌㻯㼛㼚㼚㼑㼏㼠㻌㻹㼡㼘㼠㼕㻌㻿㼥㼟㼠㼑㼙㻌㻼㼞㼛㼏㼑㼐㼡㼞㼑䇿 1. Connect the blue connector marked "FLUSH" for unit needing to be flushed. (The water heater is isolated from Quick Connect Multi system when the blue connector marked "FLUSH" for flushing is connected. Do not need to disconnect the Quick Connect Cord.) Sub Water Heater Main Water Heater Connect FLUSH Circuit Board Quick Connect Cord Remote Controller Do not need to disconnect. 2.
11. Condensate Piping CAUTION Due to the acidic nature of the condensate, be sure to properly drain and if necessary, treat the condensate prior to disposal. Damage caused by improperly handled condensate is not covered by the warranty. • This water heater is a high efficiency, fully condensing appliance which produces acidic condensate during operation. The water heater incorporates a collection and removal system which must be properly drained in order to ensure proper operation of this appliance.
Condensate piping to floor drain Condensate piping with pump DO NOT ADD ANY VALVES DO NOT ADD ANY VALVES 1/2" PVC pipe 1/2" PVC pipe Slope pipe downwards 1/4" per foot. Floor drain 1/2" PVC elbow 3/8" ID tubing* Slope pipe downwards 1/4" per foot. Condensate pump The end of the drain pipe must have an air gap. MAINTAIN CLEARANCE The end of the drain pipe must have an air gap. * Install tubing according to pump manufacturer's instructions.
12. Plumbing Applications Recirculation System Hot Water Return Cold Water Supply Remote Controller Water Heater Fixtures Expansion Tank (Install according to local code) Isolation Kit (*4) Notes: 1. Size the pump to provide a maximum of 2 GPM (7.5 L/min.) through the system at 10 ft (3m) of head plus piping losses. Adjust the flow using a globe valve and verify the flow rate with the maintenance monitors. 2. Pump Control Signal is the preferred method to control the recirculation pump.
13. Electrical Wiring Consult a qualified electrician for the electrical work. Do not connect electrical power to the unit until all electrical wiring has been completed. Disconnect Power This appliance must be electrically grounded in accordance with local codes, or in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70. In Canada, the latest CSA C22.1 Electrical Code. Caution: Label all wires prior to disconnection when servicing controls.
Remote Controller • Applicable Model Remote controller * Remarks [125 °F / 55 °C] RC-7651M Celsius display mode Fahrenheit display mode Install the remote controller according to the instructions in the Installation Guide (p. 51). * Only one remote controller can be connected to the water heater. A malfunction may occur if two or more remote controllers are connected. * The water heater has been factory set to allow a maximum temperature setting of [120 °F / 50 °C].
Changing Other Features Adjusting the Temperature Display Note: The setting must be done within the first 10 minutes of connecting electrical power to the water heater. Table of Setting Items Item No. Item 12 Celsius / Liter or Fahrenheit / Gallon display mode. Remote Controller Display Choices (factory defaults shaded) °F / gal (Fahrenheit / Gallon) °C / L (Celsius / Liter) Setting Button Power On/Off Button Flow Meter Alarm Set buttton Setting Procedure 1.
Pump Wiring * This feature is not available when using the Quick Connect Multi System feature. Connecting the pump control wire PUMP 1. Leave enough slack so that the pump control wires will stay connected if the unit is removed from the wall. 2. Remove the front cover of the heater (4 screws). 3. Cut off the connector at the end of the pump control wires. 4.
Connecting Quick Connect Cord-2 For Quick Connect Multi System Installation use part #QC-2 only. (sold separately). Caution The wire coloring on the Quick Connect Cord-2 will not be the same as the wire coloring of the connection plug inside the unit. * The remote controller can be connected to either unit A or B. Do not connect a remote controller to both units. * Disconnect the remote controller from either unit A or B prior to installing the Quick Connect Cord. Quick Connect Cord-2 1.Red 2.Black 3.
14. Maintenance Periodically check the following to ensure proper operation of the water heater. • The venting system must be examined periodically by a qualified service technician to check for any leaks or corrosion. • The burner flame must be checked periodically for a proper blue color and consistency. • If the flame does not appear normal, the burner may need to be cleaned. • If the burner needs to be cleaned, it must be performed by a qualified service technician.
CAUTION Handling after trial operation • If the unit will not be used immediately, close off all gas and water shutoff valves, drain all of the water out of the unit and the plumbing system to prevent the unit and system from freezing, and bleed the gas out of the gas line. Freezing is not covered by the warranty. WARNING A fire or explosion may result if these instructions are not followed, which may cause lose of life, personal injury or property damage.
16. Dimensions 17.7" (450mm) 13.4" (340mm) 2.1" (53mm) 1.6" (41mm) < inch (mm) > 8.7" (220mm) HOT WATER OUTLET (3/4”) WATER DRAIN VALVE COLD WATER INLET (3/4”) 50 1.8" (46mm) 2.3" (59mm) 1.7" (42mm) 2.2" (56mm) WIRING THOROUGHWAY (AC120V) WATER DRAIN VALVE 8.7" (222mm) HEIGHT OF EACH FITTING FROM CASE TOP HOT WATER OUTLET TOP COLD WATER INLET CONDENSATE DRAIN BOTTOM BOTTOM GAS INLET GAS INLET (3/4”) 2.4" (60mm) 12.7" (322mm) 15.7" (397mm) 2.1" (56mm) 26.0" (660mm) 28.0" (711mm) 1.
For Installers: Read this installation guide carefully before carrying out installation. Remote Controller RC-7651M Installation Guide NORITZ AMERICA CORPORATION Note Do not connect power to the water heater before the remote controller has been properly installed. Recommended installation location of the remote controller is in a bathroom.
Installation 1. Apply Wall Packing to the rear side of the remote controller. 2. Connect the remote controller wires to the separate remote controller cord. 3. Remove the cover of the remote control, mark the location of the screw holes, and drill holes for the wall anchors. 4. Insert the wall anchors, screw the remote control to the wall and replace the cover.
Remote Controller RC-9018M Requests to Installers ● In order to use the water heater safely, read this installation guide 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. ● Refer to the Installation Manual provided with the water heater for complete installation details.
Included Parts List Remote Controller (1) (The value in ( ) indicates the quantity.) Mounting bracket (1) Raised countersunk head wood screw Wall anchor (2) Raised countersunk head screw (2) (2) Machine screw (2) (For junction box installation) Notes on the Installation Location Connection of Remote Controller Cord • The remote should be installed in an easily accessible location.
2. Remove the decorative frame from the remote controller. (The remote controller is inserted in the decorative frame.) Main remote controller body Remove the remote controller while pulling the decorative frame forward. Decorative frame 3. Connect the remote controller wires to the cord supplied with the water heater. * Do not remove the remote controller wires from the terminal block, connect these wires to the remote controller cord. * Do not remove the insulating cover (clear).
Optional Remote Controller • Applicable Model Remote controller RC-9018M * Remarks [125 °F / 55 °C] Celsius display mode Fahrenheit display mode Install the remote controller according to the instructions in the Installation Guide. (p. 53). * Only one the remote controller can be connected to the water heater. A malfunction may occur if two or more remote controllers are connected. * The water heater has been factory set to allow a maximum temperature setting of [120°F / 50°C].
Changing Other Features Adjusting the Temperature / Water Quantity Display Note: The setting must be done within the first 10 minutes of connecting electrical power to the water heater. Table of Setting Items Item Choices (factory defaults shaded) Celsius / Liter or Fahrenheit / Gallon display mode. °F / gal (Fahrenheit / Gallon) °C / L (Celsius / Liter) Remote Controller Power On/Off Button Display MENU Button ▲/▼ Buttons ENTER Buttton Setting Procedure 1.
Installation Manual NORITZ AMERICA CORPORATION Vent Kit for Condensing Tankless Gas Water Heater Model: EZ2FVK-1 (Flex Vent 2" Kit 25 feet) [Applicable Model] • [EZTR40] NRC663-FSV • [EZTR50] EZ98DV (GQ-C2859WX-FF US) • [EZTR75] EZ111DV (GQ-C3259WX-FF US) 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.
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.
2.Included Accessories Part Shape The following accessories are included. Check for any missing items before starting installation.
3.General Safety Checkup DANGER ・ If similar flexible vent has already been installed, it must be replaced with this designated new Flex Vent Kit. WARNING ・ 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.
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.
Can be installed(OK) Cannot be installed(NG) Round Oval 3" or 4" 5" or larger 5ft or less More than 5 ft 25 feet or less More than 25 feet 3.B-Vent shape 4.B-Vent diameter 5.Horizontal distance between B-Vent connection from the ceiling and the unit is no more than 5ft. 6.Vent length from the top of unit to the rain cap. 6 If you need more than 25 feet of Flex pipe contact Noritz America 1-866-766-7489 Mark " " if each condition is matched.
7.Ambient temperature where unit is installed. Can be installed(OK) Cannot be installed(NG) More than 40℉(5℃) 40℉(5℃) or less *Refer to page 4 Mark " " if each condition is matched. ゝ Check point 40°F (5°C) Can access Rain Cap Cannot access Rain Cap(High pitch etc.) 8.
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".
6.Installation In the installation, some work will be done above the roof, extra care and fall protection may be required. Take extra care and responsibility to do the installation as safely as possible. WARNING： ・ For your safety, do not attempt to work on a rooftop until safety precautions have been identified and taken including without limitation fall protection measures, ladders or stairways, and personal protective equipment (PPE).
Step Installation Procedure(ex. @Garage) 1 Remove the B-Vent between bottom of ceiling and tank type water heater. Necessary Tool Step-1 (Work where equipment is installed) 2 Drain and remove the tank type water heater. 3 Use a measuring tape to measure from the bottom of the "④B-Vent" to the roof termination to get the total length of the vent run. ※The Measured vent run length will be used in procedure No. 23 later. Make a note of the Vent Run Length. Tape Measure 4ft 8ft 12ft 16ft 20ft : : Approx.
Step Installation Procedure(ex. @Garage) 4 Grab Bag Labeled "Step-1" for this step of the installation. Measure "④B-Vent" Diameter ※Installation for 3" or 4" where "④B-Vent" does not come down through the ceiling. Remove the four screws from "⑤A Base Junction Adapter" Place and center "⑤A Base Junction Adapter" (Lower side) over the opening of ceiling. Necessary Tool Phillips Head Screwdriver Attach "⑤A Base Junction Adapter" with four screws (must be field supplied) to the ceiling.
Step-1 (Work where equipment is installed) Step Installation Procedure(ex. @Garage) 6 Push the "⑫Flex Feeder" into the tip of the "③Flex Pipe 2"". Necessary Tool ③Flex Pipe 2" Be sure to do Install the "⑫Flex Feeder" always, even in the case of straight B-Vent runs. ("⑫Flex Feeder" prevents debris from falling into the "③Flex Pipe 2"".) ⑫Flex Feeder 7 Insert the "③Flex Pipe 2"" into the "⑥Base Junction Support" until you touch the inside of the rain cap on the roof.
Step-1 (Work where equipment is installed) Step 8 Installation Procedure(ex. @Garage) Necessary Tool Take extra care to ensure that the "③Flex Pipe 2"" does not slip by checking the mark you made on the "③Flex Pipe 2"". Firmly tighten "③Flex Pipe 2"" with "⑥C. Flex Pipe Clamp", but be careful not to over tighten as it may distort the "③Flex Pipe 2"". Check to see if it is firmly secured by pulling it by hand. ※The tightening torque should be between 7 and 10 in lb..
Step Installation Procedure(ex. @Garage) 10 Take off the existing rain cap and place it on the area where it does not fall from the rooftop. ※Make sure the inside surfaces of the "④B-Vent" are clean to ensure a good seal of the parts in this step. Necessary Tool Wet Towel Step-2 11 Use a marker to mark the original position of the "③Flex Pipe 2"", at "④B-Vent"'s upper tip. Marker Be sure to do Mark is very important for the function. Do not skip this step. (Necessary for the next step.
Installation Procedure(ex. @Garage) 13 Use a marker to mark the cutting position. Step-2 (Work on rooftop) Step Mark Necessary Tool PVC Cutter or 3 ribs Box Cutter ※All cuts must be made at right angle to the pipe. All field cuts must be deburred. ※Take precaution not to drop debris into "③Flex Pipe 2"". In case debris is dropped, remove from the lower end of the "③Flex Pipe 2"".
Step-3 (Work where equipment is installed) Step Installation Procedure(ex. @Garage) 15 Grab Bag Labeled "Step-3" and necessary tools for this step of the installation. Mount the water heater at the appropriate height according to the chart below, connect the gas, cold and hot water lines, and drain pipes. Follow the equipment's installation manual on how to set the equipment's clearance from combustibles. ※The location(height) where equipment can be installed varies by horizontal distance (L) shown below.
Step-3 (Work where equipment is installed) Step Installation Procedure(ex. @Garage) 16 Insert "⑧Rigid 45 Elbow Set" to the equipment's vent connector pipe. When inserting "⑧Rigid 45 Elbow Set", there is tension when it passes through the o-ring within the equipment’s vent connector pipe. Continue to insert "⑧Rigid 45 Elbow Set" until it is firmly seated all the way into the base of the vent connector pipe.
Step-3 (Work where equipment is installed) Step Installation Procedure(ex. @Garage) 【Point】 When performing the final cut, make the first cut of the "③Flex Pipe 2"" longer to avoid cutting the "③Flex Pipe 2"" too short. It is easy to determine the length by following the【Point】 below and matching the dimension using the below figure. 【Point】 When determining the cut length, take note on the 2 points listed below.
Installation Procedure(ex. @Garage) 18 Pull "⑦Flex Sleeve" over "③Flex Pipe 2"" under the ceiling. Then, push into the bottom of "⑥Base Junction Support". And check that "③Flex Pipe 2"" is sticking out from "⑦Flex Sleeve". (If it is not sticking out,cut "⑦Flex Sleeve" until "③Flex Pipe 2"" sticks out.) Step-3 (Work where equipment is installed) Step Necessary Tool ⑦Flex Sleeve NG 【Point】 "③Flex Pipe 2"" not visible. OK 【Point】 "③Flex Pipe 2"" is visible.
Step-3 (Work where equipment is installed) Step Installation Procedure(ex. @Garage) 20 See below chart and set "⑨Flex Vent 2" Gasket" onto the tip of "③Flex Pipe 2"". Necessary Tool ⑨Flex Vent 2" Gasket 【Point】 Correct way of setting "⑨Flex Vent 2" Gasket". 21 Pull out "⑧Rigid 45 Elbow Set", which are tentatively locked to the equipment's vent connector pipe. Insert the "③Flex Pipe 2"" from the previous procedure into the "⑧Rigid 45 Elbow Set".
Step-3 (Work where equipment is installed) Step Installation Procedure(ex. @Garage) 22 Attach "⑧Rigid 45 Elbow Set" assembly back onto the unit and secure. When inserting "⑧Rigid 45 Elbow Set", there is tension when it passes through the o-ring within the equipment’s vent connector pipe. Continue to insert "⑧Rigid 45 Elbow Set" until it reaches the all the way to the base of the equipment vent connector pipe. Check to see if it is firmly fixed by pulling it by hand.
Installation Procedure(ex. @Garage) 26 Extend the lower end of "⑦Flex Sleeve" to the sleeve clamp connector of the upper portion of equipment. Then secure with "2×⑩Fastening Screws", and apply "⑪Aluminum tape" covering the connecting part. Make sure that it is firmly fixed by pulling by hand. ※Do not stretch the "⑦Flex Sleeve" where the screws are secured, it will weaken the point where the screws are attached to the "⑦Flex Sleeve".
8.Parts Lists No.
No. Parts name Shape Part# ⑩ Flex Vent 2" Fastening Screws N/A ⑪ Aluminum tape N/A ⑫ Flex Feeder - LE EZ2FVF-1 Flex Vent 2" Kit 25 Feet Installation Manual (This document) EZ2FVK-1-LT EZTR 25 Feet Start Up Guide EZ2FVK-1-SUG Packing Box for Flex Vent 2" Kit 25 Feet EZ2FVK-1-BOX * "No." indicated on this page corresponds to the number on the applicable component on page 8.
