Navien NFB-175H Скачать руководство пользователя страница 26 | Manualshive

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Содержание NFB-175H

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 qualified installer service agency or the gas supplier The installation must conform with local codes or in the absence of local codes the National Fuel Gas Code ANSI Z223 1 NFPA 54 and or CSA B149 1 Na...

Страница 2: ...r On or Off 9 3 2 Adjusting the System Temperatures 9 3 3 Accessing Basic Menu Items 12 3 4 Resetting the Boiler 13 4 Maintaining the Boiler 14 4 1 Cleaning the Boiler 14 4 2 Draining the Boiler 14 4 3 Cleaning the Air Intake Filter 15 4 4 Protecting the Boiler from Freezing 16 4 5 Maintenance Schedules 17 5 Troubleshooting 22 5 1 Solving Basic Problems 22 5 2 Understanding Error Codes 23 ...

Страница 3: ...ppliance does not have a pilot It is equipped with an ignition device which automatically lights the burner Do not try to light the burner by hand B BEFORE OPERATING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IFYOU SMELL GAS Do not try to light any appliance Do not touch any electric sw...

Страница 4: ... boiler with the front cover opened Doing so may result in fire or carbon monoxide CO poisoning which may result inpropertydamage personalinjury ordeath Do not operate this boiler without proper venting Doing so may result in fire or carbon monoxide CO poisoning which may result inpropertydamage personalinjury ordeath Inspect the vent termination and air intake supply annually to ensure proper ope...

Страница 5: ...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 ...

Страница 6: ...es and automatically cuts off the gas supply Lightning Protection Each boiler is specially grounded both internally and externally to protect against lightning strikes Carbon Monoxide Protection The boiler is designed to maintain a safe air to gas ratio and combustion rate This function is continuously monitored by the boiler s combustion controls Auto Fan Detection The rotation of the fan is auto...

Страница 7: ...r 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 boiler is set as the Main unit in a cascade system f DHW priority Displayed when the DHW Priority feature is enabled AHU connection Displayed when the AHU connection settings are enabled If there is a problem or a ...

Страница 8: ...d 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 Enter the boiler s main menu c Power button Turn on or off the boiler d Command dial Rotate to switch between menu items or to increase decrease values Press to make a selection or to confirm changes c...

Страница 9: ...utomatically enters normal operation mode and the boiler s operating conditions are displayed on the screen Note The boiler status icons remain displayed when the boiler is turned off 3 2 Adjusting the SystemTemperatures In normal operation mode space heating teperature for each zone can be set depending on the settings in the following table Settings Space heating settings Zone Priority Settings ...

Страница 10: ...rent temperature setting is stored 3 2 2 Adjusting the Space Heating Temperature When 3 Zone Priority Setting is enabled To adjust the heating temperature 1 In normal operation mode rotate the Command dial The space heating temperature is highlighted on the screen 3 2 1 Adjusting the Space Heating Temperature When 3 Zone Priority Setting is disabled To adjust the heating temperature 1 In normal op...

Страница 11: ...o return to normal operation mode or rotate the Command dial to adjust another zone s temperature Note The space heating temperature cannot be adjusted when the Outdoor Reset Control is used The space heating temperature cannot be adjusted if the boiler is operating as a sub unit in a cascade system The main unit s set temperature will be displayed on the screen In case of outdoor reset sensor mal...

Страница 12: ... temperature F 2 Rotate the Command dial to the right to select the DHW temperature 3 Press the Command dial to select the indirect DHW temperature The highlighted section will flash 4 Rotate the Command dial to the right or left to increase or decrease the temperature 5 Press the Command dial to confirm the new temperature 6 Press the Back button to return to normal operation mode or rotate the C...

Страница 13: ...8794 Item Description 5 AHU SH Set Temp Note Use with iFlow Air Handlers Only AHU Space Heating Set Temperature F If AHU is not connected will be displayed 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 communication type 6 Supply Temp Heating supply temperature F...

Страница 14: ...ut it is not waterproof Keep it as dry as possible 4 2 Draining the Boiler You will need to drain the boiler under certain circumstances such as when the boiler is not used for an extended period of time in order to prevent freeze damage Refer to 2 2 Parts of the Boiler on page 6 for details about part locations To drain the boiler 1 Place a bucket under the boiler to collect the residual water in...

Страница 15: ...eded or as part of the annual maintenance 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 the top and 2 at the bottom to remove the front cover 5 Remove the drain cap on the manifold system to drain the boiler Drain Cap Drain Cap Note Place a bucket under the boiler to gather...

Страница 16: ...rectly The boiler is designed for indoor installation only To ensure that the boiler does not freeze follow these guidelines Do not unplug the power supply cord except for routine maintenance The boiler has a freeze protection function that requires power The freeze protection function will operate regardless of whether or not the power is turned on or in standby mode as long as the power supply i...

Страница 17: ...that the boiler is frozen contact an authorized technician or licensed professional This boiler requires very little maintenance however a qualified technician should inspect the boiler at the beginning of every heating season and or when there is a problem 4 5 Maintenance Schedules Owner maintenance Daily Check the boiler area is free of combustible flammable materials and air contaminants Check ...

Страница 18: ...nal injury or death WARNING Follow the service and maintenance procedures given throughout this manual and in component literature shipped with the 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 personal injury death or substantial property damage Th...

Страница 19: ... valve weeping is the valve and not over pressurization of the system due to expansion tank waterlogging or undersizing Checking theWater System 1 Verify all system components are correctly installed and operational 2 Check the cold fill pressure for the system Verify it is correct must be a minimum of 6 psi 3 Watch the system pressure as the boiler heats up during testing to ensure pressure does ...

Страница 20: ... following items A bucket that is 10 gallons or larger Cleaning solution diluted with water 3 hoses A water circulation pump 2 flush valves if not installed Inspecting the Ignition and Flame Detector Electrodes 1 Remove the ignition and flame detector electrodes from the boiler heat exchanger 2 Remove any deposits accumulated on the ignition flame detector electrode If the electrodes cannot be cle...

Страница 21: ...er s literature for information about the circulation time 10 Rinse the cleaning solution from the boiler a Remove the free end of the drain tube from the bucket and place it in the condensate drain or laundry tub wherever the boiler drains b Close the B valve and open the D valve Do not open the D valve yet c Allow water to flow through the boiler for 5 minutes d Close the A valve and open the C ...

Страница 22: ... is the system in standby Make sure the power is on and plugged into the outlet with the correct voltage Press the Power button and raise the setting temperature Make sure the boiler is turned on Is the system running for domestic hot water DHW When the unit is heating for DHW the heating side does not work 5 Troubleshooting 5 1 Solving Basic Problems If you experience a problem with the boiler re...

Страница 23: ...tion system supply thermistor Alarm E279 Abnormal operation system return thermistor Alarm E291 Supply Return inversion limit Manual reset E302 Low water pressure Manual reset E352 High water pressure Auto reset E353 Abnormal operation water pressure sensor Auto reset E480 Abnormal operation water tank thermistor Alarm E515 Abnormal operation PCB component Alarm Manual reset E517 Abnormal operatio...

Страница 24: ...ts components If it is determined that repair or replacement of a part under warranty is not possible the Product will be replaced with a new Product having at least the same BTU capacity as the product at issue The replacement component or product will be warranted only for the unexpired portion of the applicable warranty period for the original component or Product The heat exchanger is covered ...

Страница 25: ... be returned to Navien When the Product is installed in new construction the date of installation shall be established as the date upon which the end user takes title to the real property If proof of the installation date is unavailable then six months after the date of manufacture will be used What is not covered Navien s Limited Warranty shall be void in the event of an occurrence of any of the ...

Страница 26: ......

Страница 27: ...act 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 Date purchased Installation location and type Error code if any appears on the front panel display User s Information Manual NFB H Condensing Boilers T H E L E A D E R I N C O N D E N S I N G T E C H N O...

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