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Appendixes

12.6.3 Fan(Gas) Assembly

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Содержание NHB H Series

Страница 1: ...call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a qu...

Страница 2: ...0 12 5 Outdoor Reset Control 130 12 6 Component Assembly Diagrams and Parts Lists 132 12 7 Requirements for the State of Massachusetts 139 13 LIMITEDWARRANTY NAVIEN INC 140 Important Safety Informatio...

Страница 3: ...uch as property damage DANGER If you smell gas Do not try to light any appliance Do not touch any electrical switches or use landline phones From a neighbor s phone call your gas provider and follow t...

Страница 4: ...erminals such as a clothes line that could obstruct the air flow in or out of the boiler This boiler has been approved for use in the USA and Canada only Using the boiler in any other country will voi...

Страница 5: ...Anchors x4 Pressure Relief Valve Heating Conversion Kit Outdoor Temperature Sensor and Cable Air Vent Bushing 3 4in to 1 2in 1 2 Accessories The following optional accessories are available for the bo...

Страница 6: ...ter3 MBH AFUE2 Water Pressure Water Connection Size Supply Return Min Max NHB 055H 8 55 51 44 95 12 30 psi 1 in NPT NHB 080H 8 80 73 64 95 NHB 110H 10 110 101 88 95 NHB 150H 10 150 136 118 95 Note 1 R...

Страница 7: ...inless Steel Venting Exhaust 2 in or 3 in PVC CPVC approved polypropylene 2 in or 3 in Special Gas Vent Type BH Class III A B C Stainless Steel Intake 2 in or 3 in PVC CPVC polypropylene 2 in or 3 in...

Страница 8: ...he key components of the boiler Component assembly diagrams and particular parts lists are included in the Appendixes Intake Air Pressure Sensor LWCO Power Switch Air Vent Connection Vent Installation...

Страница 9: ...ormer Igniter Flame Rod Primary Heat Exchanger Secondary Heat Exchanger Gas Valve Air Pressure Sensor APS Gas Connection Space Heating Supply Fitting Condensate Trap Space Heating Return Fitting Fan M...

Страница 10: ...ion Diameter A Air Intake 2 in B Exhaust Gas Vent 2 in C Air Vent Connection 3 4 in D Rubber Grommet 1 in E Space Heating Return 1 in F Condensate Outlet 1 2 in G Gas Connection 3 4 in H Space Heating...

Страница 11: ...ous injury or property damage Before starting the installation check the Rating Plate located on the side of the boiler to ensure that the boiler matches the gas type gas pressure water pressure and e...

Страница 12: ...n should be near where the domestic water supply enters the building Gas the installation location should be near where the gas supply enters the building Electricity the installation location should...

Страница 13: ...on Air on page 52 To ensure adequate venting and ventilation follow these guidelines Maintain proper clearances from any openings in the building Ensure that the vent termination is at least 12 in 300...

Страница 14: ...ical free Combustion Air Do not install the boiler in areas where dust and debris may accumulate or where hair sprays spray detergents chlorine or similar chemicals are used Do not install the boiler...

Страница 15: ...sturdy enough to support the full weight of the installed boiler including the water contained in the heat exchanger and related piping The wall must be vertical and it must be capable of carrying the...

Страница 16: ...at exchangers of the Navien NHB H boilers are designed to attain the highest level of heat transfer in a compact design To accomplish this the heating water flows through a series of tubes secondary h...

Страница 17: ...hydronic heating systems use of other types of antifreeze may be harmful to the system and will void the warranty System Pressure The Navien NHB H boiler is intended solely for use in pressurized clos...

Страница 18: ...o use full port ball valves could result in a restricted flow rate through the boiler Check valves are recommended for installation Failure to install check valves could result in a reverse flow condi...

Страница 19: ...o the boiler as possible No other valve should be installed between the pressure relief valve and boiler When installing the pressure relief valve follow these guidelines Ensure that the valve s disch...

Страница 20: ...pumps and Navien s manifold system If you are not using one of the pumps listed below you must use a circulator with check valve installed at pump outlet or a pump with an integral check valve Model N...

Страница 21: ...10 12 H ft 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 0 2 4 6 8 10 12 14 16 H ft Q GPM Q GPM Q GPM Temperature Rise Conditions Model 20 F T 100 Water 25 F T 100 Water 35 F T 100 Water Flow Rate GPM Head...

Страница 22: ...20 F T 30 Glycol 25 F T 30 Glycol 35 F T 30 Glycol Flow Rate GPM Head Ft Flow Rate GPM Head Ft Flow Rate GPM Head Ft NHB 055H 5 4 10 0 4 3 6 5 3 1 3 5 NHB 080H 7 8 20 2 6 3 13 4 4 5 7 0 NHB 110H 10 8...

Страница 23: ...o the 1 2 infitting at the bottom of the boiler Use only corrosion resistant material for the drain line such as PVC or CPVC Do not reduce the size of this fitting or the drain line to less than 1 2 i...

Страница 24: ...ralizer is installed horizontally rotate the neutralizer to position the outlet at the highest point Figure 1 If the neutralizer is mounted vertically ensure that the outlet is higher than the inlet F...

Страница 25: ...place the neutralizing media when the pH is below 6 0 For replacement media contact your local Navien distributor If local codes permit install aY fitting as a bypass drain for increased safety when t...

Страница 26: ...he system has been installed properly Follow the instructions below to perform a fill test on the water system 3 3 Filling the System Before filling the boiler completely unscrew and remove the air ve...

Страница 27: ...m during commissioning of the boiler The system must also employ the use of a strategically located air removal device such as an air eliminator designed to remove the air from the water as it flows t...

Страница 28: ...the appliance It is important to locate the expansion tank and make up water connection on the inlet side of any pump in the system as doing so will guarantee the lowest pressure in the system will be...

Страница 29: ...nished Disconnect power before servicing Death or serious injury from electrical shock may result if power is supplied to the boiler during electrical wiring or servicing The boiler when used in conju...

Страница 30: ...drawings are intended to explain the system piping concept only Install a filter in the system return to remove foreign objects from the system Foreign objects inside the system may result in abnorma...

Страница 31: ...nded to explain the system piping concept only Install a filter in the system return to remove foreign objects from the system Foreign objects inside the system may result in abnormal system operation...

Страница 32: ...system Foreign objects inside the system may result in abnormal system operation Refer to 3 3 Filling the System on page 26 for make up water connections and refer to the requirements of your local c...

Страница 33: ...ended to explain the system piping concept only Install a filter in the system return to remove foreign objects from the system Foreign objects inside the system may result in abnormal system operatio...

Страница 34: ...latest edition of the National Electrical Code NFPA 70 in the USA or the latest edition of CSA C22 1 Canadian Electrical Code Part 1 in Canada ONLY licensed professionals should connect the electrica...

Страница 35: ...C CNB1 CNG1 CNF1 CNK1 CNI1 250V 3 15A ZONE3 ZONE2 ZONE1 DHW CNT1 CNT2 CNT3 CNT4 SUPPLY RETURN OUTDOOR DHW TANK CNJ1 CND1 CNV3 CNV2 CNV1 CNC3 ZONE3 LWCO ZONE2 ZONE1 CNC4 CNC5 CNC6 CNC1 CNC2 R W C R W...

Страница 36: ...NT1 CNT2 CNT3 CNT4 SUPPLY RETURN OUTDOOR DHW TANK CNJ1 CND1 CNV3 CNV2 CNV1 CNC3 ZONE3 LWCO ZONE2 ZONE1 CNC4 CNC5 CNC6 CNC1 CNC2 R W C R W C R W C R W C Zone Pump 3 max 2 5 A Thermostat 3 Thermostat 2...

Страница 37: ...1 R W C R W C CNB1 CNG1 CNF1 CNK1 CNI1 250V 3 15A ZONE3 ZONE2 ZONE1 DHW CNT1 CNT2 CNT3 CNT4 SUPPLY RETURN OUTDOOR DHW TANK CNJ1 CND1 CNV3 CNV2 CNV1 CNC3 ZONE3 LWCO ZONE2 ZONE1 CNC4 CNC5 CNC6 CNC1 CNC2...

Страница 38: ...ND1 CNV3 CNV2 CNV1 CNC3 ZONE3 LWCO ZONE2 ZONE1 CNC4 CNC5 CNC6 CNC1 CNC2 R W C R W C R W C R W C Zone Pump 3 max 2 5 A Thermostat 3 Thermostat 2 Thermostat 1 Pump Ground DHW Aquastat priority Live Live...

Страница 39: ...COM NO NC COM NO NC COM NO NC AC24VN AC24VL LWCO System Pump max 2 5 A Zone valve 3 max 1A Zone valve 2 max 1A Zone valve 1 max 1A Thermostat 3 Thermostat 2 Thermostat 1 Pump Ground DHW Aquastat prior...

Страница 40: ...max 1A Zone valve 1 max 1A Thermostat 3 Thermostat 2 Thermostat 1 Pump Ground DHW Aquastat priority Live Live Live Neutral Neutral Neutral DHW Pump max 2 5 A Boiler Pump max 2 5 A Thermostat Input The...

Страница 41: ...cessary pump operation The communication link also provides an optimal control environment for freeze protection Navien Smartzone Zone Pump Controller Navien Ready Link Cable R W C R W C CNB1 CNG1 CNF...

Страница 42: ...CND1 CNP1 CNP2 CNA1 CNX1 IN OUT A H DHW PRI Neutral Live OUT IN 3 6 7 Wiring Diagram Generic Zone System with Zone Valves Zone1 T S Zone2 T S Zone3 T S Zone4 T S Zone5 T S Zone6 T S Zone1Pump Zone2pu...

Страница 43: ...R W C R W C CNG1 CNF1 CNK1 ZONE3 ZONE2 ZONE1 DHW CNT1 CNT2 CNT3 CNT4 SUPPLY RETURN OUTDOOR DHW TANK CNJ1 CND1 CNV3 CNV2 CNV1 CNC3 ZONE3 LWCO ZONE2 ZONE1 CNC4 CNC5 CNC6 CNC1 CNC2 R W C R W C R W C R W...

Страница 44: ...Complete the installation by connecting the wires to the DHW Tank terminals located on the PCB Note When inserting the sensor into the immersion well heat conductive paste can be used to improve ther...

Страница 45: ...e boiler supply or return water temperature using the external temperature sensors configure the system accordingly On the front panel press the Menu button to enter the setting menu and then select 2...

Страница 46: ...Do not allow the piping to be supported by the boiler or its accessories WARNING Ensure that the gas piping is protected from physical damage and freezing where required Failure to follow these instru...

Страница 47: ...gas line of any debris 4 Determine the proper size and type for the gas line Refer to the tables that follow Note Refer to the instructions provided with the gas regulator for the minimum pipe distan...

Страница 48: ...nectors or tubing as noise may occur Corrugated Connector When using flexible gas lines ensure that the pipe s inner diameter and connector is sufficient to supply the required BTUs Also ensure that t...

Страница 49: ...230 2 080 1 950 1 840 1 630 3 in 11 300 7 780 6 250 5 350 4 740 4 290 3 950 3 670 3 450 3 260 2 890 4 in 23 100 15 900 12 700 10 900 9 660 8 760 8 050 7 490 7 030 6 640 5 890 In Cubic Feet ft3 per Hou...

Страница 50: ...0 3 750 3 210 2 840 2 570 2 370 2 200 2 070 1 950 1 730 1 570 1 440 4 2 Measuring the Inlet Gas Pressure WARNING The boiler cannot function properly without sufficient inlet gas pressure Measuring the...

Страница 51: ...t fall within the ranges specified on page 6 To measure the inlet gas pressure 1 Shut off the manual gas valve on the gas supply line OPEN CLOSE OPEN CLOSE OPEN CLOSE Gas Valve Opened Closed 2 Turn on...

Страница 52: ...potential of severe personal injury or death check for areas and products listed in the following tables before installing the boiler or air inlet piping Ifcontaminantsarefoundinthecombustion air you...

Страница 53: ...ing system The vent system operates with a positive pressure in the pipe To prevent serious injury or death ALWAYS vent exhaust gases directly outdoors using the vent materials and following these ins...

Страница 54: ...sible 3 Tighten the clamp with a socket wrench 8 mm to properly seal the joint Connecting the Pipe to theVent Collar Note Do not use primer or cement on the appliance connection WARNING ALWAYS properl...

Страница 55: ...ious injury or death Using an elbow directly at the collar will not allow for a tight seal between the appliance and the vent pipe ALWAYS use a length of straight pipe when starting the vent run Do NO...

Страница 56: ...s responsibility to install the vent pipe properly to check for leaks and to adequately secure the boiler to the wall 2 3 4 70 mm Purpose The VID s purpose is to guide the installer to fully insert t...

Страница 57: ...of make up air is available in the installation location Navien also recommends installing a new vent system with this appliance If reusing an existing vent system thoroughly inspect it for punctures...

Страница 58: ...f within 10 ft 3 m horizontally L Clearance above paved sidewalk or paved driveway located on public property 7 ft 2 13 m 7 ft 2 13 m M Clearance under veranda porch deck or balcony 12 in 30 cm 12 in...

Страница 59: ...venting maintain non direct vent clearances shown on page 60 as required by ANSI Z21 10 3 and the National Fuel Gas Code ANSI Z223 1 NFPA 54 and CAN CSA B149 1 Natural Gas And Propane Installation Co...

Страница 60: ...ft 91 cm within a height of 15 ft 4 6 m I Clearance to service regulator vent outlet 36 in 91 cm 3 ft 91 cm J Clearance to non mechanical air supply inlet to building or the combustion air inlet to an...

Страница 61: ...el polyphenolsulfone for the exhaust vent WARNING Carbon Monoxide Hazard To prevent serious injury or death ONLY use approved venting materials NEVER mix different types of vent pipe materials The ven...

Страница 62: ...to UL1738 and ULCS636 ISxx02xx 2 or ISxx03xx 3 Duravent PolyPro Flexible Certified to ULCS636 3PPS FLEXxx 3 2PPS FAM or 3PPS FAM 2 or 3 Rigid to Flex Male Adapter 2PPS X3L 2 to 3 Increaser Centrotherm...

Страница 63: ...boiler determine what type of vent termination is appropriate for the installation location and materials The subsections that follow describe some typical venting configurations but do not include a...

Страница 64: ...quired by local codes whichever is greater Indoor Boiler InstallationVenting Examples WARNING Fire and Explosion Hazard To prevent death serious injury or property damage ALWAYS make sure to follow th...

Страница 65: ...ust gases will cause improper operation of the boiler Multiple Low Profile Terminations on Sidewall Cascade Only 12 300 mm min Multiple Low Profile Terminations on Roof Cascade Only 12 300 mm min Comb...

Страница 66: ...se a 2 in snap fit coupler or the InnoFlue Single Wall Residential vent pipes to connect the InnoFlue Flex 2 in vent pipes to the exhaust After installation ensure that the vent system is tightly seal...

Страница 67: ...oiler The boiler has 2 sets of DIP switches on the main circuit board PCB DIP switches are used to control the functionality of the boiler Set the DIP switches appropriately based on the installation...

Страница 68: ...gh Altitude Conversion on page 120 Propane Gas 1 ON 2 3 High Altitude 0 1 999 ft 0 609 m 2 OFF 3 OFF 2 000 5 399 ft 610 1 645 m 2 ON 3 OFF 5 400 7 699 ft 1 646 2 346 m 2 OFF 3 ON 7 700 10 100 ft 2 347...

Страница 69: ...use it with the Gas Orifice for LP Refer to 12 1 Gas High Altitude Conversion on page 120 for details Common vent installations for use with natural gas and propane are only approved for up to 4 500 f...

Страница 70: ...r will not operate and may result in the heat exchanger freezing In cold areas where power failures are common you must completely drain the boiler to prevent damage if power cuts last for extended pe...

Страница 71: ...onnect the power supply to the boiler This prevents your boiler from freezing and being damaged WARNING Electric Shock Hazard To prevent serious injury or death ALWAYS label all wires before disconnec...

Страница 72: ...equired Cold water Supply Return Backflow preventer Expansion tank NHB 110H 150H Note System application drawings are intended to explain the system piping concept only Install a filter in the system...

Страница 73: ...zone pumps installed at the main and sub units are used as the output of the secondary system pump Connect zone pumps to the zone controller Do not connect zone pumps to the main or sub units System A...

Страница 74: ...connected to the main unit Connect the DHW pump to the main unit Connect the system pump to the units main or sub System Application 4 Cascade System with DHW Indirect Tank for High DHW Demand Return...

Страница 75: ...pump to the sub unit Connect zone pumps to the zone controller Do not connect zone pumps to the main or sub units System Application 6 Cascade System with DHW Indirect Tank for Low DHW Demand Temperat...

Страница 76: ...g the Communication Settings After connecting the Ready Link communication cables restore power to the boiler and turn on all boilers using the Power button Refer to 11 13 4 Configuring a Cascade Syst...

Страница 77: ...ns free of snow ice or other potential blockages as well as scheduling routine maintenance 9 1 About the Common Vent System The Navien Common Vent System provides an easy way to install the vent syste...

Страница 78: ...em a cascade communication cable MUST be installed between all units in the common vent system by the installer backflow vent dampers must be installed in the exhaust duct of each boiler unit use dire...

Страница 79: ...t system components are manufactured and installed in accordance with valid standards regulations and safety engineering rules To avoid risk the common vent system must be installed and used only for...

Страница 80: ...st be fully tightened Before operating the system ensure that the Installed vent system is clean and free of debris Ensure that the vent system is rigidly supported according to the manual s instructi...

Страница 81: ...pe and pipe fitting together for about 15 seconds until the cement sets Note Use approved solvent type cement for the proper vent materials Use solvent type cement only Check the date of manufacture b...

Страница 82: ...al must be left for the consumer The consumer must read and referto this manual forproper operation and maintenanc e of the common vent system The installation must conform withlocal codes or in the a...

Страница 83: ...Vent Installation Detector VID wiring from the harness Maintenance Port Navien Common Vent Collar Kit has a maintenance port to allow you to easily inspect the operating condition of the damper plate...

Страница 84: ...before inserting into the Common Vent Collar ALWAYS insert the vent pipe 1 5 in 38 mm into the CommonVent Collar using a twisting motion until the end reaches the bottom of the socket If flue gas lea...

Страница 85: ...n trunk pipe must not exceed 16 of equivalent length Note Do not use primer or cement on the appliance connection 1 Measure 1 1 2 from the end of the vent pipe then draw a mark at that distance Mark 1...

Страница 86: ...e bubbles form you will need to repair that section of pipe and bubble test again 9 3 3 Assembling the Wye Joint 1 Assemble the hub wye the 2 reducer and the 90 elbow into the common vent You can also...

Страница 87: ...nk pipe to each side of the wye joint or wye assembly Each trunk pipe is connected to the other wye joint or wye assembly Refer to Connecting Pipes with Cement on page 80 for more information WARNING...

Страница 88: ...earance to service regulator vent outlet 3 ft 91 cm 3 ft 91 cm J Clearance to nonmechanical air supply inlet to building or the combustion air inlet to any other appliance 36 in 91 cm 12 in 30 cm K Cl...

Страница 89: ...to service regulator vent outlet 36 in 91 cm 3 ft 91 cm J Clearance to non mechanical air supply inlet to building or the combustion air inlet to any other appliance 36 in 91 cm 48 in 120 cm below or...

Страница 90: ...npoweronuntiltheelectricalwiring installation is complete NEVER remove front cover unless power to unit is turned off or disconnected Refer to the following figures when setting the common vent type T...

Страница 91: ...d for reference purposes only Direct the exhaust away from any building openings During cold weather situations the temperature of the exhaust will be much warmer than the ambient air Therefore you wi...

Страница 92: ...he end of the hose to a drain 7 9in 200mm WARNING Carbon Monoxide Hazard Check the loop again to ensure the water is still in the loop The loop siphon must be primed with water before running the syst...

Страница 93: ...e through the maintenance port Harmful exhaust gas may leak if the gasket is not installed or if it is not installed properly Gasket 9 8 Maintenance Periodically check the damper condition inside the...

Страница 94: ...d flammable vapors Is the boiler and vent piping clear of combustible materials including clothing cleaning materials and rags Connecting the Gas Supply Yes No Does the gas supply match the type speci...

Страница 95: ...u vented the boiler with 2 in or 3 in PVC CPVC polypropylene Type BH Special Gas Vent ULC S636 for Category IV boilers Canada or in accordance with all local codes and the guidelines in this manual Ha...

Страница 96: ...onnection PCB DIP switch setting DIP SW2 Set of 8 Switches Yes No Gas type Is switch 1 set correctly for LP ON or NG OFF If continuous boiler operation is required is switch 7 in the up ON position If...

Страница 97: ...iance if any parts have been under water Immediately call a licensed professional to inspect the appliance and to replace any part of the control system and any gas control which has been under water...

Страница 98: ...e boiler front door and smell interior of boiler enclosure Do not proceed with startup if there is any indication of a gas leak If overheating occurs or the gas supply fails to shut off do not turn of...

Страница 99: ...before the boiler can be used 1 Set the language English French 2 Set the time YYYY MM DD HH MM SS 3 Set the units to display Celsius C L M Meter Fahrenheit F GPM Feet 4 Check the gas type Natural Gas...

Страница 100: ...Zone 3 Pump 1 Settings is set to DHW Pump Enable Zone Pump System Zone1 Pump Space heating temperature settings for Zone 1 Zone 2 and Zone 3 Enable Zone Valve System DHW Pump Default Space heating tem...

Страница 101: ...ting the Space Heating Operation on page 104 3 Rotate the Command dial to the right or left to increase or decrease the selected zone s space heating temperature 4 Press the Command dial to confirm th...

Страница 102: ...erature range is 104 F 40 C Absolute MIN to 180 F 82 C Absolute MAX You can adjust the temperature ranges in the parameter settings menu The boiler will retain your settings during a power outage 11 4...

Страница 103: ...ayed The temperature is displayed by 1 degree increments for Fahrenheit and by 0 5 degree increments for Celsius This is due to the degree control specifications of 0 5 degree for the AHU communicatio...

Страница 104: ...perature F 9 Sys Return Temp System return temperature F 10 Outdoor Temp Outdoor temperature F 11 Approx Boiler Flow Flow rate GPM 12 DHW Tank set Temp DHWTank set temperature F 13 Tank Sensor Temp DH...

Страница 105: ...isabled and you cannot set the zone priority If 21 Outdoor Reset is enabled 3 Zone Priority Settings will be disabled 4 Outdoor Reset ON OFF Enable or disable the Outdoor Reset Control feature Default...

Страница 106: ...te Max temperature settings The boost interval time may be set to prevent interruption in space heating while using the Outdoor Reset Control mode due to changes in heat load conditions With the boost...

Страница 107: ...etting range 0 180 min Default 30 min 5 Anti Legionella Function Enable or disable the protection against legionella bacteria Setting range Enable Disable Default Disable NOTICE An outdoor sensor erro...

Страница 108: ...itch between the information items Press the Command dial to select an item and view the information Item Description 6 DHW control method Select a DHW control type 1 Supply water 2 Sys Supply water D...

Страница 109: ...and view the information Press the Back button to return to the previous screen or menu Item Description 1 SH Operation Time View monthly space heating operation logs 2 DHW Operation Time View monthl...

Страница 110: ...p Status Zone 2 pump output status 8 system Zone3 Pump Status System Zone 3 pump output status 9 Zone V V 1 Status Zone 1 valve output status Press the Back button to return to the previous screen or...

Страница 111: ...MIN Set point Set the space heating return minimum temperature Setting range 68 F 20 C MAX Set point 18 F 10 C Default 86 F 30 C 4 Return MAX Set point Set the space heating return maximum temperatur...

Страница 112: ...ys Pressure Set the low water system pressure Setting range 4 17 psi Default 6 psi 17 High Sys Pressure Set the high water system pressure Setting range 44 57 psi Default 50 psi Item Description 5 SH...

Страница 113: ...on in Parameter Edit mode for 5 seconds to reset individual parameters to their default values When you reset one of the following parameters the corresponding parameter will be reset automatically Su...

Страница 114: ...rmal operation mode and reverts to CASCADE OFF state automatically The anti fast cycling time is the duration that the boiler stops its space heating operation when the space heating supply or return...

Страница 115: ...to increase decrease setting values Press the Command dial to select a parameter or to confirm after making changes Item Description 2 Cascade System Removal Select this option on the Main unit of a c...

Страница 116: ...pump is turned on as soon as you enter the test mode Press the Command dial to toggle the pump operation On Off Off On This option is available only when the Zone Pump System is active Press the Back...

Страница 117: ...on 5 DHW zone 1 Pump Test the DHW zone 1 pump operation The DHW zone 1 pump is turned on as soon as you enter the test mode Press the Command dial to toggle the pump operation On Off Off On 6 Zone1 Va...

Страница 118: ...Setting the Special Operation Modes To operate the boiler in special operation modes press the Back button and the Menu button simultaneously for 3 seconds and then select 7 Special Operations Rotate...

Страница 119: ...nector E278 Ext Supply Sensor Not Detected Check sensor connections E279 Ext Return Sensor Not Detected Check sensor connections E291 Return Temp Exceeds Supply Check for reversed piping E302 Low Wate...

Страница 120: ...s and requirements of the authority having jurisdiction The qualified service agency is responsible for the proper installation of this kit The installation is not proper and complete until the operat...

Страница 121: ...ting in personal injury or property damage Included Items Gas Orifice Table 1 Gas Pressure and Conversion Kit Number Labels NHB 055 080H Orifice Identification Gas Type NG LP Altitude 0 5 399 ft 5 400...

Страница 122: ...rom the gas valve Procedure Note The procedure below can be applied to both Propane conversion and High Altitude conversion Distinguish the kit supplied with the boiler before installing 1 Turn off th...

Страница 123: ...e inlet adapter whenever they are disassembled see Figure 5 The O ring must be in good condition and must be installed Replace O ring if needed GAS NG NAC NH150 4 70 6 60 GAS LP NAC L150 3 65 5 05 Fig...

Страница 124: ...If not it may cause personal injury or malfunction of the boiler 12 Remove the Gas Orifice ensure that the gasket is properly seated inside the port and then install the new Gas Orifice for use with...

Страница 125: ...no more than 1 4 turn clockwise to raise or counterclockwise to lower the CO2 value Figure 8 Set Screw Location Note The set screw is located behind the screw on cover This must be removed first WARNI...

Страница 126: ...ubstantial property damage d Activate multiple zones and set the boiler to operate at 2 stage D MAX mode refer to 11 13 7 Setting the Special Operation Modes on page 118 Measure the CO2 value at high...

Страница 127: ...WC Max 110 000 Min 10 000 BTUh Min 3 65 mm to Max 5 05 mm Conversion Kit No NAC L150 Min 8 0 to Max 13 5 in WC Min 0 02 in WC to Max 0 40 in WC Max 150 000 Min 10 000 BTUh Min 4 60 mm to Max 5 50 mm...

Страница 128: ...m e T 2 t s u a h x E r o s n e S e r u s s e r P r i A t i m i L p m e T h g i H CNJ1 CND1 Vent Installation Detector CNV3 CNV2 CNV1 CNC3 ZONE3 LWCO ZONE2 ZONE1 LWCO LWCO AC24V AC24V AC24V AC24V CNC...

Страница 129: ...r Trans AC 24V AC INPUT AC 120V 3 15A Relay 3 Boiler Pump 10A 10A 10A ZONE1 Pump DHW Tank Relay 2 ZONE3 Pump System Relay 1 ZONE2 Pump H T L BH Heating Return Thermistor System Return Thermistor DHW T...

Страница 130: ...t 12 5 Outdoor Reset Control The Outdoor Reset Control feature may be used to enhance energy efficiency while maintaining optimal heating performance With the Outdoor Reset Control the space heating t...

Страница 131: ...rature ranges OutdoorTemperature Sensor Installation Guidelines Heat Load Supply Set Point Range Return Set Point Range Finned Tube Baseboard default 120 180 F 48 5 82 C 101 147 F 38 63 5 C Fan Coil 1...

Страница 132: ...132 Appendixes 12 6 Component Assembly Diagrams and Parts Lists 12 6 1 Case Assembly 9 3 4 1 2 10 8 7 5 11 6 3 3 12 14 15 13 16...

Страница 133: ...30019664 8 Front Cover 30032869A 30031942 9 Screw M4X6 20038859A 20038859 10 Screw M4X8 20006540A 20006540 11 Screw M4X14 20038754A 20038754 12 Case Bracket Upper 20007609A 20007609 13 Case Bracket L...

Страница 134: ...6 2 Heat Exchanger and Waterway Assembly 46 24 33 1 3 9 12 4 11 27 47 26 44 45 41 43 9 39 8 36 20 21 23 17 15 13 13 9 36 36 9 9 5 6 34 40 38 42 10 7 16 48 14 17 9 19 22 2 47 35 18 37 29 28 30 31 32 4...

Страница 135: ...31991A 30031991 NHB 110 150H 12 O ring 20032528A 20032528 13 O ring 20006949A 20006949 NHB 55 80H 20032528A 20032528 NHB 110 150H 14 Pressure Sensor 30014699A 30014699 15 Bracket 20061753A 20061753 NH...

Страница 136: ...033699 NHB 55 80H O ring P31 20032163A 20032163 NHB 110 150H 37 O ring P22A 20033699A 20033699 NHB 55 80H O ring P29 20017923A 20017923 NHB 110 150H 38 High Limit Switch 30023954A 30023954 39 Screw M3...

Страница 137: ...137 Appendixes 12 6 3 Fan Gas Assembly 3 1 5 4 16 5 14 7 6 13 20 19 18 12 17 8 11 10 9 15 21 2...

Страница 138: ...2919 NHB 110H NG 30031993A 20062891 NHB 110H LP 20061839A 20061839 NHB 150H NG 30031994A 20061841 NHB 150H LP 30031958A 20062892 NHB 55 80H HIGH ALTITUDE 30032384A 20062893 NHB 110H HIGH ALTITUDE 3003...

Страница 139: ...sfied 1 INSTALLATION OF CARBON MONOXIDE DETECTORS No installation or replacement of a vented gas appliance shall be permitted unless a battery powered or electrically hard wired carbon monoxide detect...

Страница 140: ...ears During the applicable warranty period replacement of the Product or components may be authorized by Navien only Navien does not authorize any person or company to assume for it any obligation or...

Страница 141: ...ow do I get service You must contact the original installer of your Product Your installer will need to contact Navien to report the issue If the original installer cannot be identified or you no long...

Страница 142: ......

Страница 143: ...vieninc com installers Contact a licensed professional for the affected system for example a plumber gas fitter or electrician When you contactTechnical Support please have the following information a...

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