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2        Contents

Contents

1.    Safety Information 

3

2.    About the Boiler 

6

2.1    Description of the Boiler 

6

2.2    Parts of the Boiler 

6

2.3    The Front Panel 

7

3.    Operating the Boiler 

9

3.1    Turning the Boiler On or Off 

9

3.2    Adjusting the Temperature 

9

3.3    Viewing Basic Information 

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    Cleaning the Inlet Water Filter (DHW side) 

13

4.4    Cleaning the Strainer (Space Heating side) 

14

4.5    Cleaning the Air Intake Filter 

14

4.6    Protecting the Boiler from Freezing 

16

4.7    Maintenance Schedules 

17

5.    Troubleshooting 

21

5.1    Solving Basic Problems 

21

5.2    Understanding Error Codes 

22

Содержание NCB-180

Страница 1: ...navienamerica com For warranty service always contact Technical Support first Contact the technician or professional who installed your boiler Contact a licensed professional for the affected system f...

Страница 2: ...fire or explosion may result causing property damage personal injury or death Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHATTO D...

Страница 3: ...9 3 3 Viewing Basic Information 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 Cleaning the Inlet Water Filter DHW side 13 4 4 Cle...

Страница 4: ...tment C Use only your hand to push in or turn the gas control knob Neverusetools Iftheknobwillnotpushinorturnbyhand don t try to repair it call a qualified service technician Force or attempted repair...

Страница 5: ...130 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...

Страница 6: ...ler 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 suppl...

Страница 7: ...side the boiler automatically detects the temperature and if necessary initiate a safety heating cycle to prevent internal equipment damage due to freezing temperatures Short Circuit Protection Any sh...

Страница 8: ...important information required for the boiler s operation Refer to the following table for detailed information a Space heating mode f S Supply water control Indicates space heating mode operation In...

Страница 9: ...t the values required for the boiler s operation such as space heating and DHW supply temperatures Refer to the following table for detailed information k Diagnostics button n Up button For installers...

Страница 10: ...er settings menu The boiler will retain your settings during a power outage 3 1 Turning the Boiler On or Off To turn the boiler on or off press the Power button for 0 3 seconds MODE When the power is...

Страница 11: ...he water temperature read To prevent burns on page 4 carefully Water above 120 F can cause instant scalding severe burns or death To adjust the water temperature 1 Make sure that all hot water faucets...

Страница 12: ...to the Troubleshooting section of this manual or contact Technical Support at 1 800 519 8794 Display Description psi O R S R Outdoor reset curve Not in use 1 Finned tube baseboard 2 FAN coil 3 Cast ir...

Страница 13: ...Boiler You will need to drain either both the space heating side and domestic hot water DHW side or one side only before performing maintenance tasks such as cleaning the inlet water filter or to pre...

Страница 14: ...require draining and open a purge valve to drain the space heating side Open all domestic hot water faucets completely to drain the water heating side The water that remains in the plumbing lines will...

Страница 15: ...rinse it with clean running water cold 4 Reinsert and tighten the strainer 5 Fill the boiler and check for proper operation 4 5 Cleaning the Air Intake Filter If the air intake filter becomes clogged...

Страница 16: ...rew 10 Replace the front cover 11 Reconnect the power supply to the boiler 12 Press the Power button on the front panel to turn on the boiler 4 Remove the screw that secures the air intake filter the...

Страница 17: ...t there is sufficient make up air to avoid such a situation and the owner is responsible for ensuring that protection against freezing is maintained To avoid freezing issues we strongly recommend the...

Страница 18: ...e boiler Failure to perform the 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 p...

Страница 19: ...glycol test for proper concentration as recommended by manufacturer Excessive pressure rise indicates expansion tank sizing or performance problem 4 Inspect automatic air vents and air separators Remo...

Страница 20: ...ignition flame detector electrode making sure gasket is in good condition and correctly positioned Checking the Ignition Ground Wiring 1 Check that the ground wire is in good condition and securely a...

Страница 21: ...on the supply and return water lines 4 Connect one tube to the A valve and place the free end in the bucket 5 Connect one of the tubes to the circulation pump outlet and the return water line at the B...

Страница 22: ...fer to 3 2 Adjusting the Temperature on page 9 Check for cross plumbing 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 th...

Страница 23: ...r open or short circuit Contact Technical Support at 1 800 519 8794 E351 Abnormal Auto feeder valve make up water Contact Technical Support at 1 800 519 8794 E352 High water pressure Contact Technical...

Страница 24: ...al and shall be subject to Navien s schedule of approved labor allowances Warranty Exclusions Navien s Limited Warranty shall be void in the event of an occurrence of any of the following Improper ins...

Страница 25: ...nited States and Canada Removal or alteration of the rating plate OtherTerms This Limited Warranty is subject further to the terms and conditions set forth herein and as may be further specified in th...

Страница 26: ...Memo...

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