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Maintaining the Water Heater        13

5.  Pull the filter out of the water heater.

6.  Remove the filter from the plastic assembly and clean it with a 

toothbrush and clean running water.

7.  Allow the filter to dry completely.

8.  Reinsert the filter into the plastic assembly.

9.  Place the filter assembly back into the water heater and secure 

it with the screw.

10.  Replace the front cover.

11.  Reconnect the power supply to the water heater.

12.  Press the Power button on the front panel to turn on the water 

heater.

4.5    Cleaning the Air Intake Filter

If the air intake filter becomes clogged by dust or lint, the water 
heater will cease to operate and “Error Code 110” will appear on 
the front panel display. To properly maintain the water heater, you 
should clean the air intake filter every 3-4 months.

To clean the air intake filter:

1.  Press the Power button on the front panel to turn off the water 

heater.

2.  Disconnect the power supply to the water heater.

3.  Remove the front cover of the water heater.

4.  Remove the screw that secures the air intake filter (the filter is 

located at the top left of the water heater).

Содержание NPE-150S

Страница 1: ...3 1 NFPA 54 and or CSA B149 1 Natural Gas and Propane Installation Code When applicable the installation must conform with the Manufactured Home Construction and Safety Standard Title 24 CFR Part 3280 and or CAN CSA Z240 MH Series Mobile Homes Lead Free Keep this manual near this water heater for future reference whenever maintenance or service is required The wetted surface of this product contac...

Страница 2: ...er Temperature 8 3 3 Viewing Basic Information 9 3 4 Resetting the Water Heater 9 4 Maintaining the Water Heater 10 4 1 Cleaning the Water Heater 10 4 2 Draining the Water Heater 10 4 3 Flushing the Heat Exchanger 11 4 4 Cleaning the Inlet Water Filter and Recirculation Inlet Filter 12 4 5 Cleaning the Air Intake Filter 13 4 6 Protecting the Water Heater from Freezing 14 5 Troubleshooting 15 5 1 S...

Страница 3: ... turn the gas control knob Neverusetools Iftheknobwillnotpushinorturnbyhand don t try to repair it call a qualified service technician Force or attempted repair may result in a fire or explosion D Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which...

Страница 4: ... plumber or your local plumbing authority for more information DANGER HOT BURN To prevent burns Use the lowest operating temperature setting necessary to provide comfortably hot water If your household has children or elderly or disabled residents consider using a lower temperature setting Read all the instructions in this manual carefully before changing the temperature setting Feel the water bef...

Страница 5: ...untry will void the manufacturer s warranty Ɣ Should overheating occur or the gas supply fail to shut off turn off the manual gas valve to the appliance Ɣ Do not use this appliance if any part has been under water Immediately call a qualifed service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water WARNING Ɣ Shut off th...

Страница 6: ...Condensate Drain Connection 2 1 Description of the Water Heater The NPE series water heater is available in 7 models NPE 150S NPE 180A NPE 180S NPE 210A NPE 210S NPE 240A and NPE 240S The main features are as follows Ɣ Potable domestic hot water combination space heating and commercial applications Ɣ Maximum temperature 182 F 83 C Ɣ Dual stainless steel Heat Exchangers with stainless steel piping ...

Страница 7: ... Error g Master Unit A code will appear on the display Cascade operation b Hot Water Recirculation h Display Recirculation Mode c Diagnostics button i Up button For installers only Increases the temperature d Information button j Down button Shows basic information Decreases the temperature e Reset button k Power button Resets the water heater When an error occurs Turns the water heater on or off ...

Страница 8: ...stops flashing the temperature setting is stored Note The water heater will retain your settings during a power outage You can adjust the temperature by the below 10 degree increments depending on the temperature range Temperature range Adjusting the water temperature 98 F 120 F Fahrenheit mode 36 C 50 C Celsius mode 1 F or 0 5 C increments 120 F 140 F Fahrenheit mode 50 C 60 C Celsius mode Press ...

Страница 9: ...own button simultaneously for 10 seconds HIGH appears on the display Ɣ To exit Commercial Mode Press the up and down button simultaneously for 10 seconds LoW appears on the display Note Ɣ To adjust the temperature press the up button for 5 seconds to adjust in 10 F 5 C increments Ɣ Commercial Warranty Applies when this mode is used Refer to the Warranty for more details 3 3 Viewing Basic Informati...

Страница 10: ...to drain the water heater before performing maintenance tasks such as cleaning the inlet water filter or to prevent the water heater from freezing when it will not be used for an extended period Refer to the 2 2 Parts of the Water Heater on page 6 for details about part locations To drain the water heater 1 Place a bucket under the water heater to collect the residual water inside the water heater...

Страница 11: ... or larger Ɣ Cleaning solution diluted with water Ɣ 3 hoses Ɣ A water circulation pump To flush the Heat Exchanger A A B B C C D D Navien Easy valve Kit Cold Water Line Hot Water Line Circulation Pump Flushing Kit 6 Remove the recirculation inlet filter from the bottom of the water heater A model only Recirculation Inlet Filter A model only Pump Drain Plug A model only Cold Water Inlet Filter 7 Op...

Страница 12: ...rever the water heater drains b Close the B valve and open the D valve Do not open the C valve yet c Allow water to flow through the water heater for 5 minutes d Close the A valve and open the C valve 11 Disconnect all tubes 12 Remove the cold water inlet filter from the water heater and clean out any residue 13 Reinsert the filter and ensure the filter cap is securely tightened 14 Reconnect the p...

Страница 13: ...ton on the front panel to turn on the water heater 4 5 Cleaning the Air Intake Filter If the air intake filter becomes clogged by dust or lint the water heater will cease to operate and Error Code 110 will appear on the front panel display To properly maintain the water heater you should clean the air intake filter every 3 4 months To clean the air intake filter 1 Press the Power button on the fro...

Страница 14: ...trongly recommend the use of a direct vent exhaust and intake system Your installer should ensure that the exhaust vent pipe and the air intake pipe are both connected directly from the collars on the top of the water heater to the outdoors This type of vent system minimizes air movement within the water heater Ɣ This water heater has an optional recirculation mode that is used for freeze protecti...

Страница 15: ... Clean the cold water inlet filter See 4 4 Cleaning the Inlet Water Filter and Recirculation Inlet Filter on page 12 Ɣ Open the hot water faucet completely Ɣ If an error code is displayed refer to 5 2 Understanding Error Codes on page 16 It takes too long for hot water to reach the fixtures Are you using the external recirculation mode Have a contractor install a recirculation return line from the...

Страница 16: ...ntact Technical Support at 1 800 519 8794 E421 Cold water inlet1 thermistor open or short circuit Contact Technical Support at 1 800 519 8794 E432 Cold water inlet2 thermistor open or short circuit Contact Technical Support at 1 800 519 8794 E434 Abnormal operation water adjustment valve Contact Technical Support at 1 800 519 8794 E438 Abnormal operation circulation pump Ɣ External Ensure that all...

Страница 17: ... part s Navien at its sole descretion may replace the product with a new or refurbished product of comparable quality and design The replacement component part s will be warranted only for the unexpired portion of the original component part s Applicable Warranty Period Payment for labor in completing the warranty service is subject to Navien s prior written approval and shall be subject to Navien...

Страница 18: ...any location outside the United States and Canada Ɣ 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 the Terms and Conditions page located on Navien s website at www navien com WITH THE EXCEPTION OF THIS LIMITED WARRANTY NAVIEN DISCLAIMS ANY OBLIGATION OR LIABILITY WITH RESP...

Страница 19: ......

Страница 20: ...Contact a licensed professional for ected system for example a plumber or electrician When you contact Technical Support please have the following information at hand Model number Serial number Date purchased Installation location and type Error code if any appears on the front panel display Navien Inc 800 519 8794 www Navien com 20 Goodyear Irvine CA 92618 Operation Manual NPE Condensing Water He...

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