Noritz NCC199-DV Installation Manual Download Page 15

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Vent Terminal Installation Precautions

Note the following vent terminal installation requirements

• Install with the proper length protruding through the wall

• Avoid storing hazardous

objects near the terminal

Gasoline

Gas

Proper installation. The
red line can be seen,but
the red rectangle cannot
be seen from the outside.

Vent terminal

not far
enough

too far

Snow
drift

Tree

• Avoid installing the terminal where obstacles will block it

• Clearance from vent terminal.
If multiple units are installed,

terminals must be separated by a
minimum of either 12" horizontally or
60" vertically.

Vent terminal

12" or more

• Do not cover the vent terminal with any type of

protective screen or enclosure. Blocked terminals
can cause abnormal combustion resulting in undes-
ired performance from the water heater.

Main unit

Straight pipe

Use a listed Category IV vent adapter
to connect the flue collar to the vent
system. Use Category IV vent pipe
for the entire length of the exhaust
pipe.

Elbows

Elbow

Vent terminal

sloping down

Intake pipe

Exhaust
pipe

Vent system installation example

Vent terminal models

• Use only the following models of Noritz

vent terminals with this unit.

• VT4-TL

• VT4-TS*

(for long vent runs)

(to be installed directly
on top of the appliance)

Vent terminal

• Vent terminal size variations are listed in the table below.

Choose the model according to the wall thickness required.

Vent Terminal Installation Precautions

Note the following vent terminal installation requirements

• Do not install the vent terminal indoors

• Install the vent terminal with a downward slope

upward

slope

downward

slope

60" or
more

* A wall adapter will be necessary when using a VT4-TS

terminal (part #VT4-TS-ADAPT). This adapter will reduce
the wall thickness range by 1.6".

Model

Wall thickness (in.)*

VT4-TL-5

3.5" to 5.1"

VT4-TL-8

5.1" to 8.3"

VT4-TL-14

8.3" to 14.6"

VT4-TL-27

14.6" to 27.2"

Summary of Contents for NCC199-DV

Page 1: ... 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 reference Also be sure to fill in all of the ...

Page 2: ...ed with the units but may be necessary for installation Q ty Shape Part Part Shape Q ty Flue Terminal VT4 TL 1 Remote Controller Cord 26 ft Flue Terminal VT4 TS 1 Quick Connect Cord 1 1 1 Isolation Valves includes pressure relief valve Owner s Guide Warranty Installation Manual this document System Controller 1 2 2 4 PVC Adapter VP4 ADAPT PVC 3 PVC Adapter VP4x3 ADAPT PVC Bird Screen for 4 PVC VT4...

Page 3: ... length between the two units When connecting two units use only a single remote controller 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 Union Make this distance...

Page 4: ... 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 Replacement Only use vent materials that are specified in this Installation Manual for use on this...

Page 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 ...

Page 6: ...tional noises while it is use 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 sure...

Page 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...

Page 8: ...embly 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 Maintain clearances i...

Page 9: ...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 bare hands take caution to not inflict injury Be careful not to hit electrical wiring gas or water piping while drilling holes Item CAUTION Be sure to do Mo...

Page 10: ... the neutralizer unit is filled with water 1 Fill the neutralizer unit by pouring approx 17 oz 500ml of water into the exhaust accessory on the top of the appliance as illustrated below Or if the vent pipe has already been installed 2 After installing the drain pipe make sure that the area around the appliance is well ventilated open a window or a door if necessary Then operate the unit and verify...

Page 11: ... Select the location for the termination so as to prevent injury or property damage If snow is expected to accumulate take care the end of the pipe is not covered with snow or hit by falling lumps of snow Consult the vent pipe manufacturer s installa tion instructions for chimney connections Optional Stainless Steel Vent Piping Noritz N Vent is suggested when stainless steel venting is required If...

Page 12: ...mented Use only cement and primer approved for use with the pipe material as outlined in the above table PVC or CPVC pipe has been approved for use on this appliance with zero clearance to combustibles All piping must be fully supported Use pipe hangers at a minimum of 3 foot intervals Do not use the water heater to support the vent piping 3 PVC or CPVC schedule 40 pipe may also be used on this ap...

Page 13: ...ards for every 12 toward the termination Use a condensation drain if necessary In the Commonwealth of Massachusetts a carbon monoxide detector is required for all side wall horizontally vented gas fuel equipment Please refer to Technical Bulletin TB 010606 for full installation in structions As illustrated on the left make sure to keep a distance of 3 or wider between the intake and exhaust when i...

Page 14: ...earance between 3 or 4 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 specified in this section When using 4 pipe it will be necessary to use 4 x 3 reducing couplings and a short section of 3 pipe to connect to the termination Use no more than a 6 section pipe ...

Page 15: ...ght pipe Use a listed Category IV vent adapter to connect the flue collar to the vent system Use Category IV vent pipe for the entire length of the exhaust pipe Elbows Elbow Vent terminal sloping down Intake pipe Exhaust pipe Vent system installation example Vent terminal models Use only the following models of Noritz vent terminals with this unit VT4 TL VT4 TS for long vent runs to be installed d...

Page 16: ... is recom mended to prevent debris from falling into the water heater When using a horizontal section slope the horizontal vent 1 4 upwards for every 12 toward the termination Install a condensation drain if necessary Appliance Adapter Firestop Firestop Support Roof Flashing RainCap Exhaust Intake Air Hanger Strap Elbow 1 2 6 2 Min Adapter not required when 1 minimum recommended but not required A...

Page 17: ...consult local codes or the National Fuel Gas Code ANSI Z223 1 Natural Gas Meter See next page for the pipe capacity charts Noritz Condensing 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 l...

Page 18: ... 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 82 116 277 661 R Maximum Capacity of Flex TracPipe in Thousands of Btu...

Page 19: ...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...

Page 20: ... 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...

Page 21: ...nal 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...

Page 22: ...l which can corrode when placed into contact with water Keep the length of the drain pipe as short as possible Long runs or applications where the nearest drain is above the water heater will require the use of a condensate pump Size the pump to allow for a maximum condensate discharge of 2 GPH from the water heater Horizontal runs must be sloped 1 4 per foot towards the drain or condensate pump T...

Page 23: ...he loss through the water heater and Air Handler 3 Check valve required if it 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 ...

Page 24: ...he 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 before servicing Failure to do so may result in death or serious injury from electrical shock WARNING Electrostatic discharge can affect electronic compo...

Page 25: ...NNECTOR tag connector to 180 F tag connector as shown on the right 5 Replace the 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...

Page 26: ...e and cause problems Be sure to hand tighten when screwing to the terminal block Power tools may cause damage to the terminal block 1 Check to make sure that the remote controller cord has plenty of slack in order to reach the external connection terminal block 2 Disconnect electrical power to the water heater 3 Remove the single screw securing the terminal block cover and then remove the cover 4 ...

Page 27: ...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...

Page 28: ...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...

Page 29: ...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...

Page 30: ...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...

Page 31: ...ler SC 201 6M for every six units inch 5 9 9 2 18 4 17 6 24 4 LED 17 7 23 1 3 1 0 4 9 4 5 1 1 1 0 4 2 8 2 4 4 3 3 9 8 4 5 3 2 8 10 0 6 1 3 9 6 1 10 4 13 7 4 7 120VAC 26 2 1 4 2 8 3 9 5 5 1 4 2 8 3 9 5 5 6 7 1 6 4 0 5 6 0 24 x 0 4 OBLONG HOLE 6 7 HEIGHT OF EACH FITTING FROM BOTTOM OF CASE NCC199 DV WATER OUTLET 0 9 HOT WATER OUTLET 1 7 COLD WATER INLET 2 2 GAS INLET 2 2 4 4 AIR INLET FLUE COLLAR WI...

Page 32: ...ation with a Multi System This system will make hot water more quickly available to remote fixtures The pump will circulate water through the loop until the entire loop is warm and then the system controller will turn off the pump until the loop cools down Size the pump to provide at least 2 GPM 10 feet of head piping losses through the system Check the maintenance monitors on the unit to make sur...

Page 33: ...Control When installing 2 pumps in parallel The system controller will stop the units from heating when the tank is up to temperature and the unit will cut the flow through it to 2 6 GPM Install the plumbing so that a change in flow will not damage the pump Thermostat System select connector Connect to the Sto rage system connector Pump Control Wires use external relay Also disconnect this connect...

Page 34: ...sconnect this Connector Disconnect this Connector Disconnect for system controller Disconnect for system controller Disconnect this Connector Remote Controller Cord PCB Power PCB PCB Power PCB Disconnectforsystemcontroller Multi System Wiring Use SC 201 6M The connector location may be slightly different on the actual circuit boards than in these illustrations The remote controller terminal locati...

Page 35: ...Notes on the Installation Location The remote should be installed in an easily accessible location Avoid installing in a place where water or steam can come into contact with the controller Avoid locations where special chemical agents e g benzene fatty and oily deter gents are used Avoid outdoor installation or installation in an indoor location where it will be exposed to direct sunlight Connect...

Page 36: ...cord Phillips Roundhead Wood Screw Wall Anchor 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 Cord Wall Packing take off the paper Remote Control Wires Rear Side of Remote Controller ...

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