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Noritz NH-1501-DV, Installation And Instruction Manual

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Noritz NH-1501-DV Installation And Instruction Manual Download Page 9

9

7.

 

Vent Pipe Installation

Vent Terminal Installation

• Follow the installation instructions included with the vent terminal. It is suggested that the appliance be vented horizontally

through a sidewall. If a vertical vent termination is required, it must follow the requirements of this section (p.9-12).

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

• 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

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 boilers are installed, terminals
must be separated by 12" or more in a plain
view regardless of the vertical clearance.

Vent terminal

Vent terminal

12" or more

• Do not install the vent terminals vertically in-line.

Do not cover the vent terminal with any type of
protective screen or enclosure. In-line or blocked
terminals can cause abnormal combustion resulting
in undesired performance from the boiler.

Vertical position not allowed.

12" or more

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"

Vent terminal models

• Use only the following models of Noritz

vent terminals with this boiler.

• 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.

Boiler

Straight pipe

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

Elbows

Elbow

Vent terminal

sloping down

Intake pipe

Exhaust
pipe

Vent system installation example

Summary of Contents for NH-1501-DV

Page 1: ... 1 Natural Gas and Propane Installation Code NSCNGPIC Where required by the authority having jurisdiction the installation must con form to the Standard for Controls and Safety Devices for Automatically Fired Boilers ANSI ASME CSD 1 Noritz America reserves the right to discontinue or change at any time the designs and or specifications of its products without notice CAUTION CERTIFIED R Low NOx App...

Page 2: ...f package Check for any miss ing items before starting installation Q ty Shape Part Part Shape Q ty Tapping Screw 1 each 5 4 11 1 2 Optional Accessories The accessories listed below are not included with the boilers but may be neces sary for installation 1 Q ty Shape Part Part Shape Q ty Flue Terminal VT4 TL Flue Terminal VT4 TS User s Information Manual Warranty Installation and Instruction Manua...

Page 3: ...sing Use Approved Vent Materials Use only vent materials that are listed to UL 1738 for Category III appliances for the exhaust venting of this appliance Improper venting may result in fires property damage or 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...

Page 4: ...s ammonia chlorine sulfur ethylene compounds acids are present Using the incorrect voltage may result in fire or cracking 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 boiler in a mobile home recreation vehicle or on a boat CAUTION Con...

Page 5: ...r clearances according to the National Fuel Gas Code ANSI Z223 1 Installation must conform with local codes or in the absence of local codes the National Fuel Gas Code ANSI Z223 1 NFPA 54 latest edition and or CSA B149 1 Natural Gas and Propane Installation Code NSCNGPIC State of California The boiler must be braced anchored or strapped to avoid moving during an earth quake Contact local utilities...

Page 6: ...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 7: ... 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 in accordance with local installation codes and the requirements of the gas supplier A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serv...

Page 8: ...ns for the remaining four screws two for the top bracket and two for the bottom and remove the boiler The weight of the device 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 Ins...

Page 9: ...installed terminals must be separated by 12 or more in a plain view regardless of the vertical clearance Vent terminal Vent terminal 12 or more Do not install the vent terminals vertically in line Do not cover the vent terminal with any type of protective screen or enclosure In line or blocked terminals can cause abnormal combustion resulting in undesired performance from the boiler Vertical posit...

Page 10: ...nces Install the vent terminal so that all exhaust is di rected to and all intake air is taken from outdoors In the Commonwealth of Massachusetts a car bon monoxide detector is required for all side wall horizontally vented gas fuel equipment Please refer to Technical Bulletin TB 010606 for full installation instructions Number of 90 degree elbows 4 3 2 1 Maximum Vent Length 39 45 51 57 Do not com...

Page 11: ...pers 4 Place in operation the appliance being inspected Follow the lighting instructions Adjust the thermostat so the appliance will operate continuously 5 Test for spillage at the draft hood relief opening after 5 minutes of main burner operation Use the flame of a match or candle or smoke from a cigarette 6 After it has been determined that each appliance remaining connected to common venting sy...

Page 12: ...top and support is required Terminate the vent system at least 2 above but not more than 6 above the roof line or according to the vent pipe manufacturer s instructions Provide vertical support every 12 or as re quired by the vent pipe manufacturer s instruc tions Slope the horizontal vent 1 4 downwards for every 12 Do not vent straight upwards Always have a horizontal section of venting Install a...

Page 13: ...efore placing the appliance in operation The inlet gas pressure must be within the range specified This is for the purposes of input adjustment In order to choose the proper size for the gas line Installation must conform with local codes or in the absence of local codes the National Fuel Gas Code ANSI Z223 1 NFPA 54 latest edition and or CSA B149 1 Natural Gas and Propane Installation Code NSCNGP...

Page 14: ...of Flex TracPipe in Cubic Feet per Hour of 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...

Page 15: ...ge of the valve Toxic chemicals such as those used for boiler treatment shall not be introduced into the potable water Flush water through the pipe to clean out metal powder sand and dirt before connecting it Take appropriate heat insulation measures e g wrapping with heat insulation materials using electric heaters according to the climate of the region to prevent the pipe from freezing Use a uni...

Page 16: ...f valve assembly to the boiler case with the 2 supplied screws 6 Insert the relief valve assembly into the housing being careful not to damage the o ring Insert and tighten the screw that was previously removed in step 2 8 Replace the front cover of the unit NOTE When attaching the drain line to the end of the relief valve do not apply excess force to the end of the relief valve assembly Excessive...

Page 17: ...hould be installed After installation test the piping at 45 psi with the cap on and then install the relief valve afterwards Pump Cautions Use the circulating pumps listed below or their equivalents Add a pump if these are too small The pump terminal in the unit is rated for 2 2 Amps See p 25 for instructions for pumps that require greater than 2 2 Amps Taco Model 0013 F3 1 6 HP Grundfos Model 26 ...

Page 18: ...An anti scaled mixing valve installed on the DHW supply line is recommended NH 2001 1501 Room thermostat Bypass circuit See p 17 Radiator Radiator Radiator Temperature Pressure Gauge Accessories Air separator Automatic air vent Water Supply Supply Gas To junction box Retum Aquastat Indirect tank Backflow Preventer Backflow Preventer Hopper Drain Line Air vent at the highest position Safety relief ...

Page 19: ...ing is meant to show system piping concept only Installer is responsible for all equipment detailing required by local codes An anti scaled mixing valve installed on the DHW supply line is recommended Air separator Automatic air vent Water Supply Supply Gas To junction box Retum Aquastat Indirect tank Backflow Preventer Backflow Preventer Relay Air vent at the highest position Hopper Drain Line Sa...

Page 20: ...r Automatic air vent Water Supply Supply Gas To junction box Retum Aquastat Indirect tank Backflow Preventer Backflow Preventer Room thermostat Room thermostat Room thermostat D H W This drawing is meant to show system piping concept only Installer is responsible for all equipment detailing required by local codes An anti scaled mixing valve installed on the DHW supply line is recommended Air vent...

Page 21: ...z approved anti freeze only The total flow rate of the heating circuit should be no less than 4 gpm 15 L min and no greater than 17 gpm 65 L min The return temperature should be 80 F 25 C or greater Flow rate GPM 0 3 8 7 6 11 4 15 2 19 0 22 8 26 6 30 4 34 2 38 0 41 8 45 6 49 4 53 2 57 0 60 8 64 6 Flow rate L min T T connection Contact for Lamp Circulator outputs Air inlet thermistor Controller SC ...

Page 22: ...n will not operate and the boiler could be damaged due to freezing Do not let the power cord contact the gas piping Tie the redundant power cord out side the boiler Putting the redun dant length of cord inside the boiler may cause electrical interference and faulty operation Ground To prevent electrical shock provide a ground with resistance less than 100 An electrician should do this work Connect...

Page 23: ...othing will prevent the unit from being able to circulate water The freeze prevention in this appliance will not work if power is lost or disconnected if power is not connected to the pump if the pump is not connected to the unit or if the pump fails Additionally if any of the loops that the boiler is supplying hot water to is blocked or shut off the freeze prevention may not be able to function p...

Page 24: ... When the power on off button is ON lamp turns to ON Input up to 120VAC 1Amp Input up to 120VAC 1Amp Ground Input 120VAC output Connect the signal line from the indirect tank Aquastat Connect the signal line from the room thermostat Connection to the terminal 120VAC output Neutral External Lamp Signal line connection Priority 1 Indirect Tank Priority 2 Heating Burner Power Power supply for circula...

Page 25: ...ke 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 Do not install air separators where negative pressure can develop in the system Air will be drawn in Insta...

Page 26: ...isplayed at first until the air is bled from the gas piping If error message 113 is displayed set the POWER switch to the off position then set it back to the on position If the boiler does not operate normally refer to Troubleshooting in the user s information manual White smoke may be noticed from the exhaust vent during cold weather However this is not a malfunction of the unit The water temper...

Page 27: ...struction manual or on the front of the boiler 2 Turn off all electrical power to the unit 3 Do not attempt to light the burner by hand 4 Turn the gas control manual valve external to the unit clockwise to the off position 5 Wait five minutes to clear out any gas If the smell of gas remains stop and follow the instructions on page 3 of user s information manual 6 Turn the gas control manual valve ...

Page 28: ...M OF CASE HEIGHT OF EACH FITTING 4 0 5 6 0 24 0 4 OBLONG HOLE 6 0 24 0 4 OBLONG HOLE 4 0 5 14 2 10 6 8 9 2 4 4 3 5 7 6 4 4 6 6 8 3 2 5 6 7 6 7 5 5 3 9 2 8 1 4 1 4 2 8 3 9 5 5 6 7 0 4 23 1 24 2 7 3 1 1 6 26 2 3 7 5 7 0 4 9 4 1 1 17 7 4 4 5 9 9 1 17 6 18 3 1 7 WATER DRAIN VALVE WATER FILTER PRESSURE RELIEF VALVE WATER DRAIN VALVE WIRING THROUGHWAYS WATER SUPPLY GAS INLET WATER RETURN 15 Dimensions ...

Page 29: ...re setting alone can be set at any time Table of Setting Items ItemNo Item Choices factory defaults shaded Remarks 1 Priority 1 maximum temperature setting 140 to 170 F 5 F steps 176 180 F 180 F by factory default 60 to 80 C 5 C steps 83 C When item no 13 is set to oF item no 1 is not displayed Because the display is set to the Fahrenheit mode by factory default 180 F is displayed for item 1 12 Ce...

Page 30: ...y Is the pump running water flow switch failure Is the fuse inside the boiler blown Is the wiring for the flow switch properly connected 643 PRIORITY 2 pump abnormality Is the pump running water flow switch failure Is the fuse inside the boiler blown Is the wiring for the flow switch properly connected 733 Circuit board setting abnormality This error code is displayed when the high elevation conne...

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