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Vent Pipe Installation

Chapter 4. – Installation

Concentric PVC/CPVC Termination

• The concentric termination may be shortened, but not lengthened from its original factory supplied length.

• 2" (50mm) & 3" (75mm) PVC or CPVC pipe may be used with the concentric termination. Reducers will be needed to connect 2" pipe.

Maintain the same vent pipe diameter from the water heater flue to the termination.

• Do not exceed the maximum vent lengths as specified in this section.

• There must be a 1" (25mm) to 4" (100mm) clearance between the outside wall and the air intake section of the termination as

illustrated on the left.

• Install a securing strap to prevent movement of the termination.

• Terminate at least 12" (300mm) above grade or above snow line.

• Terminate at least 7' (2.1m) above a public walkway, 6' (1.8m) from the combustion air intake of any appliance, and 3' (0.9m) from any

other building opening, gas utility meter, service regulator etc.

• Terminate at least 3' (0.9m) above any forced air inlet within 10' (3m), 1' (0.3m) below, 1' (0.3m) horizontally from or 1' (0.3m) above

any door, window, or gravity air inlet into any building per National Fuel Gas Code ANSI Z223.1/NFPA 54.

• Slope the horizontal vent 1/4” upwards for every 12" (300mm).

• Use a condensation drain if necessary.

Vent Pipe Installation (DV-Direct Vent)

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Содержание Eco TOUGH NRCP111-DV-LP

Страница 1: ...y result causing property damage personal injury or death Thank you for purchasing this Noritz Tankless Gas Water Heater Before using please Read this guide completely for operation instructions Completely fill out the warranty registration card included separately and mail the detachable portion to Noritz America Corporation Keep this guide and the remainder of the warranty registration card wher...

Страница 2: ...Elevation Installations 9 3 5 Installation Clearance 10 Chapter 4 Installation 4 1 Securing to the wall 13 4 2 Vent Pipe Installation 14 4 3 Gas Piping 20 4 4 Water Piping 23 4 5 Condensate Piping 25 4 6 Plumbing Application 26 4 7 Electrical Wiring 30 4 8 Setting the Control Panel 31 Clock Adjustment Recirculation Timer Setting High Elevation Setting Chapter 5 Maintenance 5 1 Maintenance 39 5 2 F...

Страница 3: ...g bracket Emergency Kit 1 each Part Shape Q ty PVC Terminal VK3 H PVC 1 VK3 PVC VAS 1 PVC Terminal PRC 1 1 SV Conversion Kit SV CK 3 90 Elbow With Inlet Screen 1 Neutralizer NC 1 For 1 water heater 1 Part Shape Q ty Owner s Guide Warranty Card Installation Manual Technical Data Sheet QuickInstallationGuide Part List 1 each Vent screens with Finishing 3 2 Part Shape Q ty Horizontal Hood Termination...

Страница 4: ... 04 WC 0 07 WC 3 VENT 0 04 WC 0 07 WC 0 04 WC 0 07 WC Power Supply Main Supply 120V 60Hz Maximum Power Consumption 172W 82W 90W_PUMP Ignition System Direct Electronic Ignition Automatic Flame Sensing Burner System Premixed Metal Fiber Burner Gas Valve System Air ratio valve Minimum Flow Activation Flow 0 5 GPM Internal Pipe Material STS 304 Copper Tubing Dimensions W17 3 H28 7 D14 8 Weight 85 lbs ...

Страница 5: ...mp 10 Hot Water Connection 11 Condensate Trap 12 Recirculation Return Connection with Filter 13 Computer Board 14 Cold Water Connection 15 Cold Water Filter 16 Gas Connection 17 Manual Power Switch 18 Flow Sensor 19 Water Control Valve 20 Air Pressure Switch 21 Flame Sensor 22 Gas Valve 23 AGM Air Gas Mixer 24 Fan Motor 25 Internal Air Intake Filter 26 Air Intake 3 4 5 6 7 8 9 10 11 12 13 14 16 15...

Страница 6: ...for others This manual provides Safety Symbols When the user fails to adhere to the following requirement it will cause death serious damages and a great property loss For safety symbols DANGER WARNING CAUTION are indicated and the definitions for these terms are as follow Indicates an imminently hazardous situation which if not avoided will result in death or serious injury This signal word is li...

Страница 7: ... exposure to Carbon Monoxide Snow Precaution If this product will be installed in an area where snow is known to accumulate protect the vent termination from blockage by snow drifts or damage from snow falling off of roofs Check the Gas Check that the rating plate indicates the correct type of gas Check that the gas supply line is sized for 199 000 Btu h Check the Power The power supply required i...

Страница 8: ... fan to drop and incomplete combustion to occur as a result Avoid installation in places where special chemical agents e g hair spray or spray detergent are used Ignition failures and malfunction may occur as a result Carbon Monoxide Poisoning Hazard Do not install this water heater in a mobile home recreational vehicle or on a boat The water heater is designed for indoor installation only Never i...

Страница 9: ...on location take measures to prevent the fumes and steam from entering the equipment Install the unit in a location where the exhaust gas flow will not be affected by fans or range hoods Take care that noise and exhaust gas will not affect neighbors Avoid installation on common walls as the unit will make some operational noises while it is running Before installing make sure that the exhaust flue...

Страница 10: ... to facilitate inspection If possible leave 24 600mm or more in front of the unit to facilitate maintenance and service if necessary If possible leave 3 75mm or more above and below the vent pipe to facilitate inspection and repair if necessary Distance from combustibles Maintain the following clearances from both combustible and non combustible materials 3 5 Installation Clearances WARNING Before...

Страница 11: ...ilding or the combus tion air inlet to any other appliance 12 in 30 cm 36 in 91 cm K Clearance to a mechanical air supply inlet 3 ft 91 cm above if within 10 ft 3 m hori zontally 6 ft 1 83 m L Clearance above paved sidewalk or paved driveway located on public property 7 ft 2 13 m M Clearance under veranda porch deck or balcony 12 in 30 cm Clearance Requirements from Vent Terminations to Building O...

Страница 12: ...e combus tion air inlet to any other appliance 48 in 120 cm below or to side of opening 12 in 30 cm above opening 36 in 91 cm K Clearance to a mechanical air supply inlet 36 in 91 cm above if with in 10 ft 3 m horizontally 6 ft 1 83 m L Clearance above paved sidewalk or paved driveway located on public property 7 ft 2 13 m M Clearance under veranda porch deck or balcony 12 in 30 cm Clearance Requi...

Страница 13: ...d dry wall anchors will be used to securer the bottom of the unit to the wall 9 Place the Water Heater back on the wall same as step 5 10 Screw in the two screws into the dry wall anchors Securing to the wall Chapter 4 Installation 4 1 Securing to the wall WARNING CLEARANCES FOR SERVICE ACCESS The water heater must be installed on a wall that can bear its weight If you try to install the heater on...

Страница 14: ...se only solid PVC or CPVC schedule 40 pipe Cellular foam core piping is not allowed In Canada plastic vent systems must be certified to ULC S636 The components of the certified vent system must not be interchanged with other vent systems or unlisted pipe fittings In Canada specified primers and glues of the ULC S636 certified vent system must be from a single system manufacturer and not intermixed...

Страница 15: ...n for the terminal to prevent incoming of debris and animals which might cause damage to the unit 2 vent screen 1 4 mesh must be purchased for 2 venting installation Allowable Schedule 40 Vent Length PVC CPVC PP The termination elbow must be included in the total number of elbows Maximum Vent Length The unit can be adjusted to accommodate longer vent runs refer to the below table to find the maxim...

Страница 16: ...iping Terminate at least 6 1 8m from the combustion air intake of any appliance and 3 0 9m from any other building opening gas utility meter service regulator etc Enclose exterior vent systems below the roof line to limit conden sation and protect against mechanical failure When the vent penetrates a floor or ceiling and is not running in a fire rated shaft a firestop and support is required When ...

Страница 17: ...e termination Terminate at least 12 300mm above grade or above snow line Terminate at least 7 2 1m above a public walkway 6 1 8m from the combustion air intake of any appliance and 3 0 9m from any other building opening gas utility meter service regulator etc Terminate at least 3 0 9m above any forced air inlet within 10 3m 1 0 3m below 1 0 3m horizontally from or 1 0 3m above any door window or g...

Страница 18: ...e zone Insert the bird screen 90 elbow vertical setting downward Ensure at least 3ft 0 9m or more distance between edge of air intake pipe or exhaust pipe and corner wall Upper side is exhaust lower side is intake The reverse orientation is not allowed Ensure at least 1ft 0 3m or more distance between intake pipe and exhaust pipe The dis tance is measured at the outlets of intake port terminal and...

Страница 19: ...PA 54 Provide vertical support every 3 0 9m or as required by the vent pipe manufacturer s instructions A short horizontal section is recommended to prevent debris from falling into the water heater When using a horizontal section slope the horizontal vent 1 4 upwards for every 12 300mm toward the termination to drain condensate Provide adequate combustion air so as to not create negative pressure...

Страница 20: ... gas in the home Serious accidents such as fire or explosion may result Measuring Gas Pressure In order to check the gas supply pressure to the unit a tap is provided on the gas inlet Remove the round head philips screw from the tap and connect a manometer using a silicon tube In order to check the gas manifold pressure a tap is provided on the gas valve inside the unit The pressure can be checked...

Страница 21: ... 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 psig 3 5 kPa It is not recommended to pressure test in excess of psig 3 5kPa If it must be done the appliance and its individual s...

Страница 22: ...04 448 409 378 346 332 307 275 252 213 1 1 4 2205 1496 1212 1039 913 834 771 724 677 639 567 511 440 1 1 2 3307 2299 1858 1559 1417 1275 1181 1086 1023 976 866 787 675 2 6221 4331 3465 2992 2646 2394 2205 2047 1921 1811 1606 1496 1260 Gas Line Sizing for a Noritz Condensing Tankless Gas Water Heater Table 2 For 8 WC 10 5 WC initial supply pressure Table 1 For Less than 8 WC initial supply pressure...

Страница 23: ...the potable water A water heater used to supply potable water may not be connected to any heating system or components previously used with a nonpotable water heating appliance When water is required in one part of the system at a higher temperature than in the rest of the system means such as a mixing valve shall be installed to temper the water to reduce the scald hazard Flush water through the ...

Страница 24: ...ce of trouble for the client Drain piping Expansion water may drop from the pressure relief valve and wet the floor If necessary provide drain piping or use a drain hose to remove the water Hot water piping Do not use lead PVC iron or any piping which has been treated with chromates boiler seal or other chemicals The longer the piping the greater the heat loss Try to make the piping as short as po...

Страница 25: ...2 GPH from the water heater Horizontal runs must be sloped 1 4 per foot towards the drain or condensate pump The condensate will be discharged by gravity force only Make the drain pipe run as short as possible The end of the drain pipe must not be submerged in water or blocked in any way To ensure proper drainage leave the end of the drain pipe open to the atmosphere Do not have a trap Also make s...

Страница 26: ...st Mode Setting Hot Water Speed Energy Default Recirculation Time Recirculation Setting Recirculation Mode Standard Default page 26 Same as other Tankless water heater N A OFF N A Good Best Internal Recirculation page 28 Similar to tank water heater without recirculation system N A ON Internal Better Better 5 00 8 00 AM 5 00 11 00 PM External Recirculation page 27 Quicker hot water Required ON Ext...

Страница 27: ...ion Internal recirculation mode can be used even with external recirculation pipe installed if user wants to save energy cost Must set water heater to internal recirculation mode When using external recirculation mode with the built in pump check the following maximum recirculation pipe lengths including fittings 3 4 pipe is recommended 1 2 Pipe 200 60m of equivalent length 3 4 Pipe 500 150m of eq...

Страница 28: ...28 Chapter 4 Installation This mode is available without a recirculation pipe installed The water heater is preheated and protected from freezing Plumbing Guidelines 3 Internal Recirculation mode ...

Страница 29: ... applied An approved ASME HV Valve must be installed on the hot water supply line for hydronic domestic hot water loop as close to the unit as possible Valve size 3 4 maximum 150psi Refer to the figure below for more information on approved pressure relief valves Direct the discharge piping of the pressure relief valve so that hot water will not splash on anyone or any nearby equipment Attach the ...

Страница 30: ...ndant length of cord inside the water heater may cause electrical interference and faulty operation Ground To prevent electrical shock provide a ground with resistance less than 100Ω An electrician should do this work Do not connect the ground to the city water or gas piping Do not tie the ground to a telephone line Breaker Installation Mount a device which shuts off the electrical path automatica...

Страница 31: ...button to store the setting 1 Setting year 2014 Set the Year by turning the dial button Only the flashing number can be changed Set the month by turning the dial button Only the flashing number can be changed Press and hold Function Button for approximately 5 Seconds to enter User mode Power on the control panel must be on A GA is displayed on the display screen From here turn the Dial Button to s...

Страница 32: ...te 20 4 Setting day of the week Friday Set the day by turning the dial button Only the flashing number can be changed Set the hour by turning the dial button Only the flashing number can be changed Set the minute by turning the dial button Only the flashing number can be changed Set the day of the week by turning the dial button Only the flashing number can be changed Press Function Button to retu...

Страница 33: ...o the control panel Press and hold the Function Button for approximately 5 seconds to get into the Installer mode 2 Turn the dial button in Installer mode to 1 RC 3 oFF character is flashed when the dial button is pressed Default setting is oFF and recirculation function is turned off 4 Turn the dial button clockwise to select on in order to activate the recirculation function 5 Press the dial but...

Страница 34: ...kwise until the display reads 5 EL 3 0 2 will flash when the dial button is pressed The default setting is 0 2 for installations at 0 1 999 ft elevation 4 Turn the dial button clockwise to select the value that corre sponds to the installation elevation 5 Press the dial button to store the current setting and return back to Installer mode Elevation above Sea Level 5 EL setting 0 1 999 ft 0 609 m 0...

Страница 35: ...stall the units 2 18 50 457mm apart from each other to ensure the cable will be able to reach between the units See Typical Plumbing diagram If the distance between the two units is too great not only the cable won t be able to reach but the water temperature may also become unstable because of the difference in pipe length between the two units ㆍQuick Connect Multi System cannot allows more than ...

Страница 36: ... Owner s Guide Note CA 01 Master unit will be able to set as first setting on at 6 QC in installer mode Other unit will be automatically set CA 02 Slave as second setting on at 6 QC in installer mode 1 Turn off the power to the control panel Press and hold the Function Button for 5 seconds to get into the Installer mode 2 Turn the dial button to 6 QC 3 Press the dial button the oFF character will ...

Страница 37: ...o Installer mode When Noritz water heaters are installed in a Noritz Quick Connect Multi System you can install a common venting system Do not use common venting if the water heater is used within a Noritz Quick Connect Multi System with other manufacturer s water heaters or other models Include a condensate drain in the main trunk as illustrated in the following examples Must be set up each produ...

Страница 38: ...L of the common vent which consist of the horizontal width W W1 and vertical height H H1 Total Length L W H W1 H1 Venting the Exhaust only to the side wall Venting Intake and Exhaust to the roof Venting the Exhaust only to the roof Note For each short radius elbow that will be used in the vent add 8 feet 2 4 m to the total length For each long radius elbow that will be used in the vent add 5 feet ...

Страница 39: ... relief valve and make sure that water draining out of the valve will not cause any damage If the relief valve discharges periodically it may be due to thermal expansion in a closed water system Contact the water supplier or a local plumbing inspector on how to correct this situation Do not plug the relief valve See Operation Manual for further maintenance WARNING There is a scald potential if the...

Страница 40: ...ter heater piping Check water heater and system piping for any sign of leakage Leaking pipes could cause property damage Make sure all piping is properly supported Flush tankless heat exchanger annually more in hard water conditions See User s Information manual for instructions Vent Check condition of all vent pipes and joints Ensure all vent piping is properly supported Check for obstructions ex...

Страница 41: ...ppliances in accordance with this manual and or your local code Is the vent termination at least 12 above the exterior grade Is the total vent length within the maximum vent length restriction Have you checked the air vent piping for leaks Have you properly supported the vent termination Are all vent runs properly supported Is the vent sloped upward toward the vent termination at a rate of 1 4 per...

Страница 42: ...42 Memo ...

Страница 43: ...43 Memo ...

Страница 44: ...NORITZ AMERICA CO 11160 Grace Avenue Fountain Valley CA 92708 Phone 866 766 7489 Installation Manual ...

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