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4        Safety Information

California law requires the following Prop 65 warning to be 

provided:

WARNING

This product can expose you to chemicals including lead, lead 

compounds, and carbon bisulfide which are known to the 

State of California to cause cancer and birth defects or other 

reproductive harm. For more information, go to  

www.P65Warnings.ca.gov.

CAUTION

 

Do not attempt to repair or replace any part of the boiler, 

unless it is specifically recommended in this manual. 

For all other service, contact an authorized technician or 

licensed professional. Improper adjustments, alterations, 

service, or maintenance may lead to property damage, 

personal injury, or death and will void your warranty.

 

Do not operate the boiler if you feel something is wrong 

with it.

 

Doing so may result in product damage or personal injury.

 

Do not allow children to operate or access the boiler.

 

Doing so may result in product damage or personal injury.

 

Do not turn on the boiler unless the water and gas 

supplies are fully opened.

 

Doing so may damage the boiler.

 

Do not use this boiler for anything other than its 

intended purpose, as described in this manual.

 

Do not remove the front cover unless the power to the 

boiler is turned off or disconnected.

Failure to do so may result in electric shock.

 

When servicing the controls, label all wires prior to 

disconnecting them.

Failure to do so may result in wiring errors, which can lead to 

improper or dangerous operation.

 

Do not use unapproved replacement or accessory parts.

 

Doing so may result in improper or dangerous operation 

and will void the manufacturer’s warranty.

 

Do not place anything in or around the vent terminals, 

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 void the 

manufacturer’s warranty.

 

Should overheating occur or the gas supply fail to shut 

off, turn off the manual gas valve to the appliance.

WARNING

 

Shut off the gas supply if the boiler is damaged.

Have your installer or plumber show you the location of the 

gas shut off valve and demonstrate how to close the valve. 

If the boiler is damaged as a result of overheating, fire, flood, 

or any other reason, close the manual shut off valve and do 

not operate the boiler again until it has been inspected by a 

qualified technician.

 

Do not store or use gasoline or other flammable liquids 

near this boiler.

Doing so may result in fire or explosion.

 

Do not place combustibles, such as newspapers or 

laundry, near the boiler or venting system.

Doing so may result in a fire.

 

Do not place or use hair sprays, spray paints, or any other 

compressed gases near the boiler or venting system, 

including the vent termination.

Doing so may result in fire or explosion.

 

Do not operate the boiler with the front cover opened.

 

Doing so may result in fire or carbon monoxide (CO) 

poisoning, which may result in property damage, personal 

injury, or death.

 

Do not operate this boiler without proper venting.

 

Doing so may result in fire or carbon monoxide (CO) 

poisoning, which may result in property damage, personal 

injury, or death. Inspect the vent termination and air intake 

supply annually to ensure proper operation of the boiler. 

Turn off and discontinue use of the boiler if any of the vent 

pipes, vent elbows, or intake pipes are damaged in any way, 

separated at a joint, or show evidence of corrosion, rusting, 

or melting.

 

Do not touch the power cord or internal components of 

the boiler with wet hands.

Doing so may result in electric shock.

 

Do not make any electrical connections before turning 

off the electrical power supply at service entrance panel.

Doing so may result in severe personal injury or death.

Содержание NFC Series

Страница 1: ...ontact a licensed professional for the affected system for example a plumber or electrician When you contact Technical Support please have the following information at hand Model number Serial number...

Страница 2: ...ilding Immediately 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...

Страница 3: ...iler On or Off 9 3 2 Adjusting the Temperature 9 3 3 Accessing Basic Menu Items 10 3 4 Resetting the Boiler 11 4 Maintaining the Boiler 12 4 1 Cleaning the Boiler 12 4 2 Draining the Boiler 12 4 3 Cle...

Страница 4: ...pplier call the fire department Do not return to your home until authorized by your gas supplier or the fire department C Do not use this appliance if any part has been under water Immediately call a...

Страница 5: ...for use in the USA and Canada only Using the boiler in any other country will void the manufacturer s warranty Should overheating occur or the gas supply fail to shut off turn off the manual gas valve...

Страница 6: ...0 F 55 C 10 seconds 120 F 49 C 10 minutes 100 F 37 C very low scald risk DANGER HOT BURN To prevent burns Use the lowest operating temperature setting necessary to provide comfortably hot water If you...

Страница 7: ...eze Protection A sensor inside the boiler automatically detects the temperature and if necessary initiates a safety heating cycle to prevent internal equipment damage due to freezing temperatures Shor...

Страница 8: ...when the boiler is operating in anti freeze mode Auto air purge Displayed when an auto air purge is being performed e Cascade Main mode Flashes when configuring a cascade system Turns on solid if the...

Страница 9: ...for the boiler s operation such as space heating and DHW supply temperatures Refer to the following table for detailed information a Back button Return to the previous menu or screen b Mode button En...

Страница 10: ...ion the boiler will operate at this set temperature Take note of the original heating temperature in case you want to restore it to the default The default space heating supply water temperature range...

Страница 11: ...configure the space heating and DHW temperatures and review error history Press the Menu button to enter the Main Menu screen To view information about the boiler press the Menu button and then select...

Страница 12: ...or contact Technical Support at 1 800 519 8794 Item Description 1 Operation State Current Operation State 2 Heat Capacity Heat Capacity 3 SH Set Temp Space Heating Set Temperature F 4 DHW Set Temp DH...

Страница 13: ...ture resistant but it is not waterproof Keep it as dry as possible 4 2 Draining the Boiler You will need to drain the boiler before performing maintenance tasks such as to prevent the boiler from free...

Страница 14: ...e filter every 3 4 months To clean the air intake filter 1 Press the Power button on the front panel to turn off the boiler 2 Disconnect the power supply to the boiler 3 Unfasten the 4 latches 2 at th...

Страница 15: ...of the boiler 6 Remove the filter from the plastic assembly Dust and rinse it with clean running water 7 Allow the filter to dry completely 8 Place the filter assembly back into the boiler and secure...

Страница 16: ...enwillnotwarrant any damages due to freezing The installer is responsible for ensuring that there is sufficient make up air to avoid such a situation and the owner is responsible for ensuring that pro...

Страница 17: ...e service and maintenance could result in damage to the boiler or system Failure to follow the directions in this manual and component literature could result in severe personal injury death or substa...

Страница 18: ...ts over time rendering the valve inoperative Such conditions are not detectable unless the valve and its components are physically removed and inspected This inspection must only be conducted by a plu...

Страница 19: ...filter is clean Review with the Owner 1 Review the User s Information Manual with the owner 2 Emphasize the need to perform the maintenance schedule 3 Remind the owner of the need to call a licensed c...

Страница 20: ...r for 5 minutes d Close the A valve and open the C valve 11 Disconnect all tubes and valves 12 Reconnect the power supply to the boiler 13 Press the Power button on the front panel to turn on the boil...

Страница 21: ...er to 3 2 Adjusting the Temperature on page 9 Check for cross piping between the cold and hot water lines The water from the hot water faucet is too hot Is the set temperature set too high Check the b...

Страница 22: ...Manual RESET E110 Abnormal air pressure Manual RESET E205 Heating supply thermistor open or short circuit Auto RESET E218 Heating return thermistor open or short circuit Auto RESET E278 Abnormal oper...

Страница 23: ...ration outdoor temperature sensor appears only when the outdoor reset curve is enabled Alarm E761 Abnormal Operation Pre Heat Aquastat Alarm E777 LWCO service code 7700 external device Auto RESET E782...

Страница 24: ...riod 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 liability in connection with the repla...

Страница 25: ...tion for non recommended uses failure to follow or comply with the User s Operational Manual etc Improper maintenance including but not limited to scale buildup vent blockage failure to maintain etc M...

Страница 26: ...Memo...

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