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Noritz ProTough NR98-DVC-LP, Руководство по установке

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If this water heater will be installed in an application where the supply water is hard, the water must be
treated with either a water softener, which removes the hardness, or by using sequestering agents, such
as the Noritz Scale Shield, that reduce the amount of scale deposits. Refer to the below tables for sug-
gested treatment and maintenance measures to be taken based on the water hardness level.  Damage to
the water heater as a result of water in excess of 12 gpg (200 mg/L) of hardness is not covered by the
Noritz America Limited Warranty.

Note: When installing a water softener, consult with the manufacturer for proper sizing and installation

guidelines; the below diagram is for reference only. For more information about Scale Shield, contact
Noritz America at 866-766-7489.

Water Treatment

Water Treatment System

City Water Supply

Pressure

Relief

Valve

Hot Water to Fixtures

Shutoff Valve

Drain

Cold to Water

Heater

Optional Sediment 

Filter

Water Treatment Device

Shutoff Valve

Type of Water

Hardness 

Level

Treatment 

Device

Flush 

Frequency*

Type of Water

Hardness 

Level

Treatment

Device

Flush 

Frequency*

Soft

0-1 gpg

1-3 gpg

 

(0-17 mg/L)

None

None

None

None

None

None

Slightly Hard

 

(17-51 mg/L)

None

None

Moderately 

Hard

Hard

3-7 gpg

 

(51-120 mg/L)

ScaleShield

Once a Year

Once a Year

Twice a

 Year

Once a Year

7-10 gpg

 

(120-171 mg/L)

ScaleShield

Very Hard

10-14 gpg

 

(171-239 mg/L)

Water 

Softener

Softener 

Required

Extremely 

Hard

Soft

Slightly Hard

Moderately 

Hard

Hard

Very Hard

Extremely

Hard

> 14 gpg

 

(> 239 mg/L)

0-1 gpg

1-3 gpg

(0-17 mg/L)

(17-51 mg/L)

3-7 gpg

(51-120 mg/L)

7-10 gpg

(120-171 mg/L)

10-14 gpg

(171-239 mg/L)

> 14 gpg

(> 239 mg/L)

Water 

Softener

Softener 

Required

Water 

Softener

Softener 

Required

Water 

Softener

Softener 

Required

* Install Noritz Isolation Valves to allow for flushing.

 

 

 

 

 

Water 

Softener 

Suggested

Water 

Softener 

Suggested

**

 

**

 

 

*Install Noritz Isolation Valves to allow for flushing.

**Flushing is required if a water softener is not installed.

Residential Use Treatment Guidelines

Commercial Use Treatment Guidelines

NORITZ

NR98-DVC

Содержание ProTough NR98-DVC-LP

Страница 1: ...s 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 please either place this Installation Manual in a plastic pouch and attach it to the side of the water heater or the inside of the pipe cover or recess box if applicable or hand it to the customer to retain for future refer...

Страница 2: ...uide Warranty Installation Manual this document Part No Description 4 CVP 4STR 12 CVP 12STR 24 CVP 24STR 36 CVP 36STR Adjustable Part No Description CVT S Flange Adapter HorizontalTermination Flange Elbow Part No Description CRC CAIP 90 Elbow Adjustable 90 Elbow Support Strap CVP 45ELB CRF P Standard Horizontal Kit FP 5 OUT CRF 20 Part No Description Roof Flashing Adapter A CRFB 55 Straight Straig...

Страница 3: ...nnecting two units disconnect the remote controller connector from the other unit Note Connect the remote controller to only one of the units System Diagram Insulate the hot water piping to prevent heat loss Insulate and apply heating materials to the cold water supply piping to prevent heat loss and freezing of pipes when exposed to excessively cold temperatures Leave enough clearance around the ...

Страница 4: ...r electric shock Use Extreme Caution if Using With a Solar Pre Heater Using this unit with a solar pre heater can lead to unpredictable output temperatures and possibly scalding If absolutely necessary use mixing valves to ensure output temperatures do not get to scalding levels Do not use a solar pre heater with the quick connect multi system Precautions on Vent Pipe This appliance requires the u...

Страница 5: ... 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 recreational vehicle or on a boat The water heater is designed for indoor installation only Never install it outdoors or in a bathroom it may be damaged or a ...

Страница 6: ...onal noises while it is running Before installing make sure that the exhaust flue termination will have the proper clearances according to the National Fuel Gas Code ANSI Z223 1 State of California The water heater must be braced anchored or strapped to avoid moving during an earthquake Contact local utilities for code requirements in your area or call 1 866 766 7489 and request instructions Be su...

Страница 7: ...is restriction will not be applied to an area where an effective shield makes a clearance of 24 or more in front of the exhaust outlet Check Illustration If possible leave 8 or more on either side of the unit to facilitate inspection If possible leave 24 or more in front of the unit to facilitate maintenance and service if necessary If possible leave 3 or more above and below the vent pipe to faci...

Страница 8: ...eter regulator assembly 3 within a height 15 above meter regulator assembly I Service regulator vent outlet 3 J Nonmechanical air supply inlet or combustion air inlet to any other appliance 12 36 K Mechanical air supply inlet 3 above if within 10 6 L Above paved sidewalk or paved driveway located on public property Under veranda porch deck or balcony 7 M indicates clearances required in Canada Mai...

Страница 9: ...vice will be applied to the wall If the strength of the wall is not suffi cient 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 Locating Screw Holes Mounting Structure When installing with ...

Страница 10: ...n or enclosure Blocked terminals can cause abnormal combustion resulting in undesired performance from the water heater 8 Vent Pipe Installation This appliance requires the use of special concentric type vent pipe specified by Noritz America Do not attempt to use materials that are not specified for use on this appliance WARNING Be sure to do CARBON MONOXIDE POISONING Follow all vent system requir...

Страница 11: ...e appliance will be reduced by up to 8 Maximum Vent Length Adjustment Connector Two 90 elbows maximum length 9 ft with connector installed Two 90 elbows maximum length 29 ft with connector removed Maximum Vent Length Example Two 45 elbows count as one 90 elbow 123456 123456 123456 123456 123456 123456 123456 12345678901234 12345678901234 12345678901234 12345678901234 12345678901234 12345678901234 ...

Страница 12: ...r according to local codes and in order to prevent injury or property damage 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 dam age from snow falling off of roofs Support the vent pipe with hangers at a minimum of every 7 Make the vertical pipe as short as possible Do not common vent or connect more than o...

Страница 13: ...ion air intake of any appliance and 3 from any other building opening gas utility meter service regulator etc Enclose exterior vent systems below the roof line to limit condensation 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 the vent termination is located not less than 8 from a...

Страница 14: ...line consult local codes or the National Fuel Gas Code ANSI Z223 1 Natural Gas Meter See next page for the pipe capacity charts Noritz Tankless Gas Water Heater 199 900 Btuh Clothes Dryer 35 000 Btuh Barbecue 50 000 Btuh Gas Range Stove 65 000 Btuh 10 10 10 10 5 5 5 5 Gas Fireplace 25 000 Btuh Instructions 1 Size each outlet branch starting from the furthest using the Btuh required and the length ...

Страница 15: ... in Cubic Feet per Hour of Natural Gas 0 60 Specific Gravity 0 5 WC Pressure Drop Length in Feet Pipe Size 3 4 1 1 1 4 1 1 2 2 10 20 30 40 50 60 70 80 90 100 150 200 206 383 614 1261 2934 147 269 418 888 2078 121 218 334 723 1698 105 188 284 625 1472 94 168 251 559 1317 86 153 227 509 1203 80 141 209 471 1114 75 132 194 440 1042 71 125 181 415 983 67 118 171 393 933 55 94 137 320 762 48 82 116 277...

Страница 16: ...ystem 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 Installation and service must be performed by a qualified plumber In the Commonwealth of Massachusetts this product must be...

Страница 17: ... wet the floor If neces sary 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 possible Use mixing valves with low water resistance Use shower heads with low pressure loss If necess...

Страница 18: ...r Heater Optional Sediment Filter Water Treatment Device Shutoff Valve Type of Water Hardness Level Treatment Device Flush Frequency Type of Water Hardness Level Treatment Device Flush Frequency Soft 0 1 gpg 1 3 gpg 0 17 mg L None None None None None None Slightly Hard 17 51 mg L None None Moderately Hard Hard 3 7 gpg 51 120 mg L ScaleShield Once a Year Once a Year Twice a Year Once a Year 7 10 gp...

Страница 19: ... is not included with the pump 4 Set the flow switch to deactivate the Air Handler when the domestic hot water flow reaches 3 GPM Adjust as necessary to prevent cycling 5 If the system requires water for space heating at a higher temperature than for other uses means such as a mixing valve shall be provided to temper the water for the other uses to help prevent scald ing 6 Expansion tank required ...

Страница 20: ...heater will not activate resulting in possible freezing damage Do not let the power cord contact the gas piping Tie the redundant power cord out side the water heater Putting the redundant length of cord inside the water heater may cause electrical interference and faulty operation Disconnect Power Electrical Shock Hazard Do not turn power on until electrical wiring is finished Disconnect power be...

Страница 21: ...he front cover of the water heater 4 screws 6 Reconnect electrical power to the water heater but do not turn it on 7 Press and hold the FLOW METER ALARM SET button until a sound is heard 2 sec and 120 F appears on the display 8 Set the upper limit of the hot water supply temperature to 125 F 130 F 135 F 140 F 145 F 150 F 160 F 170 F or 180 F using the UP and DOWN setting buttons 9 To put the water...

Страница 22: ...om a wall circuit to the pump 5 Replace the front cover Pump Wiring This feature is not available when using the Quick Con nect Multi System feature Relay connection with larger pumps 85 W 1 Locate and prepare the pump control wires as described above 2 Choose a suitable installation location for the relay where it will be protected from moisture 3 Connect the pump control wires from the heater to...

Страница 23: ...Black 3 White 4 Green 5 Blue 6 Blue 1 White 2 Green 3 Red 4 Black 5 Blue 6 Blue Connecting the Quick Connect Cord to the two units 1 Turn off the power 2 Remove the front cover of the heater 4 screws 3 Pass the Quick Connect Cord through the wiring throughway and into the unit 4 Plug the connector on the Quick Connect Cord to the receptacle inside the unit 5 Attach the ground wire of the Quick Con...

Страница 24: ...or 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 Do not obstruct the flow of combustion and ventilation air The pressure relief valve must be operated once a year to ensure that it is functioning properly and there is no obstruction Turn the power off...

Страница 25: ...power to the unit 8 The unit will now operate whenever hot water is called for If the unit will not operate follow the shutdown instructions and call a service technician Shutdown Instructions 1 Stop any water demand 2 Turn off electric power 3 Turn the gas control manual valve clockwise to the off position Should overheating occur or the gas supply fail to shut off turn off the manual control val...

Страница 26: ...NGS FROM BOTTOM OF CASE 2 2 NR98 DVC HOT WATER OUTLET COLD WATER INLET GAS INLET 0 4 1 8 13 2 5 0 3 1 13 8 13 1 FLUE COLLAR CONDENSATE DRAIN AIR INLET mm inch WIRING THROUGHWAY AC120V HOT WATER OUTLET WATER DRAIN VALVE WATER DRAIN VALVE WATER FILTER GAS INLET COLD WATER INLET VIEW FROM TOP AC120V 6 9 7 3 HOT WATER OUTLET 3 4 WIRING THROUGHWAY COLD WATER INLET 3 4 GAS INLET 3 4 4 1 10 3 1 2 6 0 5 9...

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