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Installation Manual
NHW700 Non-Condensing Water Heaters
Getting Service
If your water heater requires service:
All repairs require pre-authorization by Technical Support.
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Request for your installer or any licensed professional to contact Technical Support at
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1-800-519-8794 Option 2 once at the installation site.
A short list of independent service providers in your area can be found on the website:
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www.navieninc.com/installers.
Contact a licensed professional for the affected system (for example, a plumber, gas fitter,
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or electrician).
When you contact Technical Support, please have the following information at hand:
Model number
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Serial number
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Date purchased
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Installation location and type
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Error code, if any appears on the front panel display
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800.519.8794
www.navieninc.com
20 Goodyear lrvine, CA 92618
T A N K L E S S
W A T E R
H E A T E R S
Version: 1.0 (June, 2023)
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B O I L E R S
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Summary of Contents for Navien NHW700
- Page 1 Installation Manual NHW700 Non-Condensing Water Heaters Getting Service If your water heater requires service: All repairs require pre-authorization by Technical Support. ● Request for your installer or any licensed professional to contact Technical Support at ● 1-800-519-8794 Option 2 once at the installation site.
- Page 2 Installation Manual NHW700 Non-Condensing Water Heaters Model NHW700-160AI/180AI/199AI NHW700-160AE/180AE/199AE ALWAYS read and follow this manual completely before using the water heater. Save for future reference. Tested and Certified to NSF/ANSI 372 for lead free* compliance. * The wetted surface of this product contacted by consumable * Lead Free water contains less than one quarter of one percent (0.25%) of...
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Page 3: Table Of Contents
6.5 Component Assembly Diagrams and 2.4 The Front Panel Parts Lists 2.5 Components 6.6 Installation Check list 2.6 Dimensions 6.7 Navien H2Air Add-on Controller Kit (Optional) 2.7 Rating Plate 6.8 Requirements for the State of Massachusetts 3. Installing the Water Heater 3.1 Choosing an Installation Location... -
Page 4: Important Safety Information
1. Important Safety Information The following Safety Alert Symbols are used DANGER in this manual. They are used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible serious injury or death. This Safety Alert Symbol precedes any safety message about risk of personal injury. - Page 5 California law requires the following Prop 65 WARNING warning to be provided: WARNING To prevent death, serious injury, or property damage: Cancer and Reproductive Harm - www.P65Warnings.ca.gov WARNING To prevent death, serious injury, or property damage: Do not turn on the water heater unless the ●...
- Page 6 DANGER DANGER This water heater’s water temperature is set to 120°F (49°C) at the factory for your safety and comfort. Increasing the temperature increases the risk of accidental scalding. Water temperatures at or above 125°F (52°C) can cause instant scalding, severe burns, or death. Before you decide to change the temperature setting, read the following table carefully.
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Page 7: About The Water Heater
Recess Box Gas Conversion Kit (Outdoor Models Only) The following optional accessories are available for the water heater: HotButton Push HotButton Wall Plate Button Navien Plumb Easy Remote Controller Valve Set with Pressure Relief Valve NaviCirc (Recirculation Valve) Ready-Link Communication Cable... -
Page 8: Specifications
2.3 Specifications The following table lists the specifications for the water heater. Additional specifications about water, gas, electric, and air supplies (venting) appear in the Installation section. NHW700 Indoor NHW700 Outdoor Item 160AI 180AI 199AI 160AE 180AE 199AE Heat Natural Gas... -
Page 9: The Front Panel
2.4 The Front Panel The front panel allows you to adjust the water temperature and view the operating status or error codes. Remove the protective sheet from the front panel before using it. The front panel of the outdoor model is placed inside the water heater. It is used only for installation Note and maintenance. -
Page 10: Components
Ignition Transformer Buffer Tank Fan Motor Front Panel Gas Valve Recirculation Pump Water Adjustment Valve APS (Air Pressure Sensor) Water Inlet Filter DHW Supply Fitting Gas Inlet Fitting Recirculation Inlet Adapter [NHW700-160AI/180AI/199AI] For Indoor Use Only About the Water Heater... - Page 11 Ignition Transformer Buffer Tank Fan Motor Front Panel Gas Valve Recirculation Pump Water Adjustment Valve APS (Air Pressure Sensor) Water Inlet Filter DHW Supply Fitting Gas Inlet Fitting Recirculation Inlet Adapter [NHW700-160AE/180AE/199AE] For Outdoor Use Only About the Water Heater...
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Page 12: Dimensions
5.5 in (141.1 mm) 0.6 in (16 mm) 1.2 in 8.6 in (220 mm) 8.6 in (220 mm) 2.7 in 3 in 5.9 in 2.3 in (30.8 mm) (68.8 (76.3 (152.3 (60.2 17.3 in (440 mm) [NHW700-160AI/180AI/199AI] About the Water Heater... - Page 13 Overhead View Supply Connections 8.2 in (210.3 mm) 5.5 in (141.1 mm) 0.6 in (16 mm) 1.2 in 2.7 in 3 in 5.9 in 2.3 in (30.8 mm) (68.8 (76.3 (152.3 (60.2 17.3 in (440 mm) [NHW700-160AE/180AE/199AE] About the Water Heater...
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Page 14: Rating Plate
ALWAYS leak test the appliance and the gas connections before operating the appliance. ● This water heater cannot be converted from natural gas to propane without a Navien Propane Gas ● Conversion Kit. NEVER attempt a field conversion of this water heater without using the Navien Propane Gas Conversion Kit. -
Page 15: Installing The Water Heater
Carefully consider the following (0-60 mg/L) factors when choosing an installation location: Moderately 4-7 grains/gal Water Softener** Once/Year Hard (61-120 mg/L) or Navien WARNING PeakFlow is 7-9 grains/gal Hard Recommended (121-160 mg/L) Water Softener** Review the entire installation information in this... - Page 16 5. Connect one of the tubes to the circulation pump outlet and the cold water line at the “B” valve. 6. Connect one tube to the Navien Plumb Easy Valve the free end in the bucket. 7. Pour the cleaning solution into the bucket.
- Page 17 To ensure adequate venting and ventilation, follow Navien will not be liable for any Note these guidelines: damages caused by water leaks.
- Page 18 Proximity to Fixtures and Appliances Clean, Debris and Chemical-Free Combustion Air Install the water heater near fixtures that deliver or use hot water, such as bathroom, kitchen, Do not install the water heater in areas where ● and laundry room faucets. Select a location that dust and debris may accumulate or where hair minimizes the water piping required between major sprays, spray detergents, chlorine, or similar...
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Page 19: Mounting The Water Heater To The Wall
1. Ensure that the strength of the wall is sufficient to support the weight of the water heater. Navien water heaters come with two upper and lower mounting brackets that are pre-drilled at 16 2. Securely attach the water heater to the wall by in for easy installation on standard wall studs. -
Page 20: Connecting The Gas Supply
This water heater cannot be converted from ● natural gas to propane or vice versa without a Navien gas conversion kit. Do not attempt a field conversion of this water heater without a Navien gas conversion kit installed by a qualified service agency. - Page 21 Navien recommends connecting the water heater as To connect the gas supply: the first water heater downstream of the gas meter, 1. Determine the gas type and pressure for the to ensure a sufficient gas supply. water heater by referring to the rating plate.
- Page 22 Regulator flow. High (before entering Pressure When using rigid pipe, Navien home or building) ● Regulator recommends the installation of a union on the gas supply line close to the water heater, to facilitate any Gas Tank future maintenance or service.
- Page 23 3.3.1 Gas Pipe Sizing Tables (Referenced from 2012 National Fuel Gas Code) These tables are for reference only. Please consult the gas pipe manufacturer for actual pipe capacities. Maximum Natural Gas Delivery Capacity In cubic feet (ft ) per hour (0.60 specific gravity; 0.5 in WC pressure drop). Contact your gas supplier for BTU/ft ratings.
- Page 24 3.3.2 Measuring the Inlet Gas Pressure WARNING The water heater cannot function properly without sufficient inlet gas pressure. Measuring the inlet gas pressure should be performed by a licensed professional only. The inlet gas pressure must be maintained between 3.5 in and 10.5 in WC for natural gas and between 8.0 in ●...
- Page 25 2. Open a hot water faucet. The water heater 5. Remove the screw from the gas inlet fitting and should turn on and the gas in the gas supply connect a manometer to the pressure port. line will be purged. Reset the manometer to zero before use.
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Page 26: Connecting The Water Supply
3.4 Connecting the Water Supply The water fittings on the water heater are If the installation site only has in plumbing throughout, it is not necessary to upsize the water lines to When connecting the water supply, follow these guidelines: Do not remove the factory installed recirculation ●... - Page 27 3.4.1 Selecting a Recirculation Mode Internal Recirculation Mode On all NHW700 AI/AE model water heaters, you To use the internal recirculation mode: can choose from two pre-heating modes: internal 1. Connect the water supply. recirculation mode or external recirculation mode.
- Page 28 The following diagram shows the internal 3. Set the front panel DIP switches at the far left recirculation flow for pre-heating: (set of ten) to 2-OFF and 3-ON. Primary Heat Exchanger Buffer Tank Flow Sensor Circulation Check 2-Way Pump Valve Valve Open Water...
- Page 29 4. To return to the previous menu (R&D run an air handler using the H2Air add- information menu), press the [Reset] button on controller. DHW recirculation and once. Navien H2Air configurations cannot be used at the same time. Items Name Description Display...
- Page 30 Pump Cycle Interval Time Settings Mode Pump Sampling Time Settings Mode (P.12) (P.14) 1. When the P.12 item is displayed on the Items Description Display <PARAMETER INFORMATION MENU MODE> segment, press the [Info] button once to enter Set the pump to the <Preheat Pump Output Time Settings periodically cycle ON.
- Page 31 3.4.4 System Application – External Recirculation External Recirculation The following diagram shows the recirculation system’s basic operation of an NHW700 water heater system with the dedicated return line. Ball Valve To Cold Water Inlet To Cold Water Inlet Return Water...
- Page 32 NaviCirc includes a feature that automatically blocks circulation when reaching a temperature of approximately 95°F (35°C). The following diagram shows the basic operation of an NHW700 Series water heater recirculation system with the NaviCirc. Install the NaviCirc to the faucet farthest from the water heater. If installed in close proximity to Note ●...
- Page 33 The following diagram shows the basic operation of an NHW700 Series water heater recirculation system with the NaviCirc and HotButton. Push Button Push Button Push Button Contact Signal Contact Signal Contact Signal Ball Valve NaviCirc* DHW Supply Temperature Sensor** Check Valve...
- Page 34 3.4.5 Connecting a Pressure Relief Valve When installing the valve, follow these guidelines: Ensure that the discharge capacity of the pressure ● relief valve is equal to or greater than the WARNING maximum pressure rating of the water heater. Ensure that the maximum BTU/H rating on the ●...
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Page 35: Venting The Water Heater (Indoor Models Only)
3.5 Venting the Water Heater The water heater is a Category III appliance designed for use with a concentric venting system, (Indoor Models Only) which uses one pipe with two ducts for combustion air and exhaust air, respectively. DANGER The water heater must be properly vented to ensure a constant supply of clean intake air and to ensure that exhaust air is properly removed from This appliance is certified as a Category III... - Page 36 Do not store hazardous or flammable substances ● WARNING near the vent termination. If this water heater will be installed in areas where ● snow is known to accumulate, protect the vent The vent piece connected to the water heater ●...
- Page 37 3.5.1 About the Vent Installation WARNING Detector The NHW700 unit comes pre-installed with a Vent Periodically inspect all vent pipe connections. Installation Detector (“VID”) to assist the installer in The Vent Installation Detector (VID) will NOT properly installing the Intake Air/Exhaust Vent Pipe detect the separation of connected vent pipe if (“Vent Pipe”) into the Intake Air/Exhaust vent collar.
- Page 38 WARNING WARNING ALWAYS only use the correctly sized vent pipe ● materials or an error code E762 can appear on the front panel if the vent pipe is not properly installed. The factors that can effect the performance ● Detectable of the VID include, but are not limited to, The vent deformity of the vent pipe, not using a...
- Page 39 3.5.2 Maintaining Clearances Terminal clearances Maintain the following venting clearances, as required by ANSI Z21.10.3 and the National Fuel Gas Code, ANSI Z223.1/NFPA 54: Inside corner detail Regulator vent outlet In the event no regulator Legend: is present, H and I can Vent terminal be disregarded.
- Page 40 * Suggested clearances by the manufacturer. If the clearances required by local codes are different from those from the table above, the greater clearance should apply. 1) The minimum distance from adjacent public walkways, adjacent buildings, openable windows, and building openings shall not be less than those values specified in the National Fuel Gas Code, ANSI Z223.1/NFPA 54, and/or the Natural Gas and Propane Installation Code, CSA B149.1;...
- Page 41 To inside corner 12" 12" 12" 12" Between terminals at the same level [NHW700-AI Models] [NHW700-AI Models] Between terminals Between terminals at the same level at the same level 3" 3" 36" 36" To To 12"...
- Page 42 3.5.3 Measuring Vent Length (Indoor Models Only) Refer to the table to find the maximum vent length based on the number of elbows. (Two 45 degree elbows count as one 90 degree elbow.) Vent Type Diameter Number of 90° Elbows Maximum Vent Length 20 ft (6 m) 15 ft (4.5 m)
- Page 43 Concentric Elbow 11-1/2" (292mm) Length 21" (533mm) Length 10" (254mm) Length 39" (990mm) Length 45° Elbow 90° Elbow Navien Part #GXXX001891 Navien Part #GXXX001892 Navien Part #GXXX001896 Navien Part #GXXX001897 Navien Part #GXXX001894 Navien Part #GXXX001895 UPC #884954220925 UPC #884954220932...
- Page 44 Metal-Fab, Inc. – Alternate Certified 3.5.4 Terminating the Vent Vent Components (Certified to UL1738) Before installing the water heater, determine what type of vent termination is appropriate for the Refer to the contact information of the Note installation location and situation. Examples in this manufacturer if necessary: section describe typical venting configurations, but Manufacturer: Metal-Fab...
- Page 45 3.5.5 Draining Condensate (Indoor Secure the wall thimble plate to the Note vent pipe and the wall by tightening Models Only) the provided screws in the left and right screw holes. WARNING If a condensate trap hose is installed, the water inside the hose should be higher than 5.1 in (130 mm), and water should be inside the hose before operating the water heater.
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Page 46: Connecting The Power Supply
Installation 3.6 Connecting the Power Supply For vertical terminations, install a condensate ● WARNING drain and trap as close to the appliance as possible. Slope the vent in accordance with the vent ● Electric Shock Hazard manufacturer’s installation instructions. To prevent serious injury or death: Use only corrosion resistant materials for the ●... -
Page 47: Setting The Dip Switches
Disconnect Switch (Outdoor Models The water heater must be electrically grounded. ● If using the power plug, ensure that the electrical Only) outlet you connect the water heater to is properly grounded. If wiring the water heater directly to On outdoor models, there must be a disconnect a power supply, do not attach the ground wire switch installed for the incoming 120 V AC power. - Page 48 & solar system, lime alarm, high altitude, cascade venting and gas type settings. Some of these configurations are set at the factory and should not be changed. The following tables describe the functions of the DIP switches and their settings: [NHW700-AI Models] [NHW700-AE Models] Installing the Water Heater...
- Page 49 NOTICE Do not configure the system for DHW recirculation when it is configured to run an air handler using the H2Air controller. DHW recirculation and Navien H2Air configurations cannot be used at the same time. Installing the Water Heater...
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Page 50: Configuring The Remote Controller System
4. Configuring the Remote Controller System 4.1 Included Items You can connect up to 2 remote Note ● controllers if necessary. (Optional) When you open the box, you will find the following items with the remote controller. Check the box for each of the following items before installing the remote controller. -
Page 51: Remote Controller
4.4 Remote Controller LCD display LED indicator Indicates functions and Indicates the status of water current status. heater. - Green: Normal Mode. - Red: Error occurred. Preheat & Timer button Lock button - Access the timer settings. Locks the other button - Recirculation ON. -
Page 52: Multi Remote Controller System
4.5 Multi Remote Controller 1. Press the Down button on the remote controller displaying “MAIN” to set its operation mode to System “SUB. ” The multi remote controller system (30022717A) consists of one main remote controller and one sub remote controller. The system must have only one main remote controller. - Page 53 4.5.2 Checking the Multi Remote 4. “SYNC” appears on the LCD display for 5-10 seconds until it syncs with the connected panel Controller System Setting and the main remote controller after the ID is assigned. After completing the multi remote controller setting, you can check the setting by pressing the OK button and Lock button simultaneously for 2 seconds.
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Page 54: Entering Lock Mode
4.6 Entering Lock Mode 4.7 Setting the Clock To prevent accidental pressing of the buttons and to 1. Press the Preheat & Timer button for 2 seconds. prevent children from adjusting the controller, you can activate the Temperature Lock Mode. To activate or deactivate Lock Mode, press the Lock button for 2 seconds. -
Page 55: Setting The Recirculation Timer
4. Press the OK button to finish and save the 2. Set the recirculation activation time by pressing updated time. the Up or Down button. Then, press the OK button to set the deactivation time. 4.8 Setting the Recirculation The recirculation timer settings are Note Timer divided in 30 minute increments. -
Page 56: Starting Recirculation
4.10 Canceling all Timer Settings 5. During the reservation schedule, the preheating icon turns on and the Reservation area starts flashing. Press and hold the Preheat & Timer and OK button simultaneously for 2 seconds. “CLR” appears for 3 seconds and all timer settings are canceled. -
Page 57: Installing A Cascade System
5. Installing a Cascade System When installing a cascade system, carefully consider the design of the system and the features of the installation location. Follow all local codes and regulations, as well as all guidelines for installing the water heater. The following sections describe additional considerations that are specific to installing cascade systems. -
Page 58: Connecting The Communication Cables
Note NHW700-199. 5.2 Connecting the Communication Cables Two water heaters can be connected with Navien Ready-Link communication cables. Select one of 2. On the Sub water heater, press and hold the the water heaters in the cascade system as the... -
Page 59: Appendixes
6. Appendixes 6.1 Covering the Clamps with Front Cover Cap (for NSF 5 Use Only) After installing the water heater completely, cover the indicated clamps with the front cover caps provided with the product. The front cover caps must be used if Note NSF 5 is required. -
Page 60: Technical Data
6.2 Technical Data 6.2.1 Outlet Flow vs Temperature Rise Curves 13.0 12.0 11.0 10.0 ΔT - Temperature Rise(℉) [NHW700-160AE/160AI] 13.0 12.0 11.0 10.0 ΔT - Temperature Rise(℉) [NHW700-180AE/180AI] 13.0 12.0 11.0 10.0 ΔT - Temperature Rise(℉) [NHW700-199AE/199AI] At a high Altitude above 2,000 ft (610 m), the water heater will de-rate by 3% with Natural Gas and Note by 4% with Propane for each 1,000 ft (305 m) of altitude gain. - Page 61 6.2.2 Pressure Drop Curve Water Flow (GPM) [NHW700-160AE/160AI] Water Flow (GPM) [NHW700-180AE/180AI] Water Flow (GPM) [NHW700-199AE/199AI] 6.2.3 Pump Curve (GPM vs Ft Head) Water Flow (GPM) Appendixes...
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Page 62: Wiring Diagram
6.3 Wiring Diagram FRONT PANEL CON10 CON12 CON3 CON5 Appendixes... -
Page 63: Ladder Diagram
6.4 Ladder Diagram NEUTRAL Main GV Relay 1 120 V AC SGV 1 Relay 2 SGV 2 Relay 3 FILTER SGV 3 Relay 4 SGV 4 Relay 5 Igniter Relay 6 DC 15 V Transformer Non-Pump Model Option NEUTRAL Pump Relay 7 Primary Anti Freeze Heater... -
Page 64: Component Assembly Diagrams And Parts Lists
6.5 Component Assembly Diagrams and Parts Lists 6.5.1 Case Assembly (NHW700-160AI/180AI/199AI) Appendixes... - Page 65 Description Service Part # Part # Remark 20057546* 160AI Case 20057548* 180AI, 199AI Case Bracket (Lower) 20057580* Case Bracket (Upper) 20048190* Front Cover Bracket 20024042* External Base Toggle Latch 20007514* 20006973* Rubber Ring 20025127* 20029318* Air Pressure Sensor 30010238* 30010238* Gas Control Valve 30029811* 30029845*...
- Page 66 6.5.2 Case Assembly (NHW700-160AE/180AE/199AE) Appendixes...
- Page 67 Description Service Part # Part # Remark 20057547* 160AE Case 20057549* 180AE, 199AE Case Bracket (Lower) 20057580* Case Bracket (Upper) 20048190* Front Cover Bracket 20024042* External Base Toggle Latch 20007514* 20006973* Rubber Ring 20025127* 20029318* Junction Box 20046065* Air Pressure Sensor 30010238* 30010238* Gas Control Valve...
- Page 68 6.5.3 Burner Assembly (NHW700-160AI/180AI/199AI) Description Service Part # Part # Remark 30029843* 160AI Chamber Case 30029844* 180AI, 199AI Pressure Test Nipple 20048333* Case Support Bracket (Lower) 20057624* 20047231* 160AI 160AI: 20048026* 180AI, 199AI 30030641* Gasket 180/199AI: 20047192* 30030643* 20048027* 30022984*...
- Page 69 Description Service Part # Part # Remark 20046291* 160AI Gasket 20045926* 180AI, 199AI 20045927* Case Support Bracket (Upper) 20057623* 20048401* 160AI Fuse Bracket (Back) 20048402* 180AI, 199AI 30022897* 160AI Chamber Cover 30022675* 180AI, 199AI 20046301* 160AI 20045931* 180AI, 199AI 20046302* 160AI 20045932* 180AI, 199AI...
- Page 70 Description Service Part # Part # Remark Ignition Transformer 30030645* 30023297* Water Flow Sensor 30029799* Inlet Temperature Sensor 30030645* 30008366* Inlet Pipe 30029798* Clip 30030645* 20045992* Heat Exchanger Outlet Adapter 30029802* Outlet Temperature Sensor 30030645* 30015178* Outlet Pipe 30029800* Clamp 20027025* High Limit Switch 30002577*...
- Page 71 6.5.4 Burner Assembly (NHW700-160AE/180AE/199AE) 12 12 18 18 Description Service Part # Part # Remark 30029843* 160AE Chamber Case 30029844* 180AE, 199AE Pressure Test Nipple 20048333* Case Support Bracket (Lower) 20057624* 160AE: 20047231* 160AE 30030642* 20048026* 180AE, 199AE 180/199AE: Gasket...
- Page 72 Description Service Part # Part # Remark 30022902* 160AE Exhaust Duct 30022753* 180AE, 199AE 20046291* 160AE Gasket 20045926* 180AE, 199AE 20046426* 20048401* 160AE Fuse Bracket (Back) 20048402* 180AE, 199AE 30030138* 160AE Fan Assembly 30030137* 180AE, 199AE Tube 20010120* 30031314* 160AE NaviTech™...
- Page 73 Description Service Part # Part # Remark 20060738* LNG; 160AE 20060740* LNG; 180AE, 199AE Gas Manifold 160AE, LNG: 20060739* LPG; 160AE 30030551* 20060741* LPG; 180AE, 199AE 160AE, LPG: 30029807* 160AE 30030552* Gas Stage Valve Body 180/199AE, LNG: 30029808* 180AE, 199AE 30030553* Hexagon Head Bolt 20057401*...
- Page 74 6.5.5 Water Assembly Appendixes...
- Page 75 Description Service Part # Part # Remark Buffer Tank 30016125* 30023708* Fastener 20017724* 20017724* O-Ring (P29) 20017923* 20017923* Buffer Tank Adapter A 20035697* 20035697* Fastener 20017726* Buffer Tank Adapter B Pump Connect Adapter 20048418* 20048418* O-Ring (P18) 20006947* 20006947* Hot Water Outlet Adapter 30008338* Thermistor 30008366*...
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Page 76: Installation Check List
“Troubleshooting” in the User’s Information Manual. If you have additional questions or need assistance with installation, contact Technical Support at 1-800-519- 8794 or 1-949-420-0420, or refer to the technical support section of Navien’s website (www.navieninc.com). Installing the Water Heater... - Page 77 Connecting a Pressure Relief Valve Have you installed an approved pressure relief valve on the water heater? Does the rating of the pressure relief valve match or exceed the maximum BTU rating of the water heater? Is the pressure relief valve at least in in diameter? Have you installed the pressure relief valve on the hot water outlet pipe near the water heater?
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Page 78: Navien H2Air Add-On Controller Kit (Optional)
6.7.1 Basic Principles The following diagram shows the basic operation of the heater system with the Navien H2Air add-on controller. NOTICE Do not configure the system for DHW recirculation when it is configured to run an air handler using the H2Air add-on controller. -
Page 79: Requirements For The State Of Massachusetts
6.8 Requirements for the State of 4. INSPECTION. The state or local gas inspector of the side wall horizontally vented gas fueled Massachusetts equipment shall not approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage NOTICE BEFORE INSTALLATION installed in accordance with the provisions of 248 CMR 5.09 and 5.12. -
Page 80: Limited Warranty Navien, Inc
(3) years as indicated in warranty will be voided. the Warranty Coverage Periods table. Navien will pay labor charges for the repair subject to Navien’s prior written approval and in accordance with Navien’s schedule of approved labor allowances for a period of one (1) year from the date of installation. - Page 81 Navien. At Navien’s request, the defective Product high limit control. or part must be returned to Navien. When the Subjecting the heat exchanger to pressures or ● Product is installed in new construction, the date...
- Page 82 BY STATE LAW IS LESS. No one is authorized to make any other warranties on behalf of Navien. Some states do not allow the exclusion or limitation of incidental or consequential damages, or how long an implied warranty lasts, so the above limitation may not apply to you.
- Page 83 Memo...