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Vesta VC 100 COMBI Installation Manual

Condensing combi boilers
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Installation Manual
Condensing Combi Boilers
NCB-150E
Model
Model
VC 100 (LP) COMBI
VC 120 (LP) COMBI
NCB-210E
VC 140 (LP) COMBI
NCB-240E
H
WARNING
If the information in these instructions is not followed exactly a 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.
WHAT TO DO IF YOU SMELL GAS
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Do not try to light any appliance.
Do not touch any electrical switch do not use any phone in your building
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 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 Natural Gas and Propane Installation Code
When applicable the installation must conform with the Manufactured Home Construction and
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Safety Standard Title 24 CFR Part 3280 and or CAN CSA Z240 MH Series Mobile Homes
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Keep this manual near this boiler for future reference
whenever maintenance or service is required.
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  • Page 1 Installation Manual Condensing Combi Boilers NCB-150E Model Model VC 100 (LP) COMBI VC 120 (LP) COMBI NCB-210E VC 140 (LP) COMBI NCB-240E Keep this manual near this boiler for future reference whenever maintenance or service is required. WARNING If the information in these instructions is not followed exactly a 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 –...
  • Page 2 Requirements for the State of Massachusetts NOTICE BEFORE INSTALLATION This appliance must be installed by a licensed plumber or gas fitter in accordance with the Massachusetts Plumbing and Fuel Gas Code 248 CMR Sections 2 00 and 5 00 IMPORTANT In the State of Massachusetts 248 CMR 4 00 &...

  • Page 3: Table Of Contents

    Contents Safety Information Setting the DIP Switches About the Boiler Connecting the Power Supply Items Included 1 2 . Accessories Installation Check list 1 3 . Specifications 1 4 . Components Operating the Boiler 1 5 . Dimensions 9 1 Turning the Boiler On or Off 1 6 .

  • Page 4: Safety Information

    Safety Information The cautions issued by this installation manual include critical WARNING information for the safety while using the product. When the user fails to adhere to the following requirements can cause If you do not follow these instructions exactly a fire or explosion death, serious damages, and a great property loss.
  • Page 5 CAUTION WARNING Do not turn on the boiler unless the water and gas supplies are fully opened. Doing so may damage the boiler. Do not turn on the water if the cold water supply shut- off valve is closed. 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...
  • Page 6 DANGER DANGER This boiler s water temperature is set to 120 ’ at the factory for your safety and comfort Increasing the temperature increases the risk of accidental scalding Water temperatures at or above 125 can cause instant scalding severe burns or death Before you decide to change the temperature setting read the following charts carefully.

  • Page 7: About The Boiler

    About the Boiler Items Included 1 2 . Accessories When you open the box you will find the following items with The following optional accessories are available for the boiler the boiler Check the box for each of the following items before installing the boiler Installation Manual, Pressure Relief Valve Heating...

  • Page 8: 3 . Specifications

    Specifications Model VC 100 COMBI VC 120 COMBI VC 140 COMBI Installation Type Indoor Wall-Hung Weight 60Ib 72Ib 72Ib Dimension (H W D) 31.5” 18.2” 8.8” 31.5” 18.2” 9.4” 31.5” 18.2” 9.4” Space Heating 22,000 Btu/h 30,000 Btu/h 30,000 Btu/h...

  • Page 9: 4 . Components

    Components The following diagram shows the key components of the boiler Component assembly diagrams and particular parts lists are included in the Appendixes. Intake Air Exhaust Ignitor & Flame Rod Front Panel Condensate Trap Power Switch About the Boiler...
  • Page 10 Latent Heat Exchanger SensibleHeat Exchanger Ignition Transformer Gas Pipe & Motor Air Vent DHW Heat Exchanger Pump 3 Way Valve Condensed water drain Heating return Heating supply connection connection Domestic hot water outlet connection Gas inlet connection Domestic hot water inlet connection About the Boiler...

  • Page 11: 5 . Dimensions

    Dimensions VC 100 COMBI About the Boiler...
  • Page 12 VC 120, 140 COMBI About the Boiler...

  • Page 13: 6 . Rating Plate

    Rating Plate The VESTA VC boilers come from the factory configured for use with Natural Gas NG ). Before starting the installation , check the rating plate located on the side of the boiler to ensure that the boiler matches the gas type gas pressure water pressure and electrical supply available in the installation location.

  • Page 14: Installing The Boiler

    Installing the boiler in a location without a drain will void the warranty and VESTA will not be responsible for water damages that occur as a result For more information about condensate drainage refer to “...

  • Page 15: 2 . How To Install

    Adequate installation clearances 2 2 . How to install CAUTION Please install on a durable wall. Do not install the boiler on carpeting. When install the product, about 66 lb(31kg) is added in a wall. So if it is not installed on solid wall, it may cause damages, submersion, gas leak and a fire by falling the product Install the boiler in an area that allows for service and maintenance access to utility connections piping filters and traps Based on...

  • Page 16: Installing The System Piping

    All systems old and new Before using freeze protection products ensure that system must be cleaned to remove flux grease and carbon residue VESTA fluid contains proper glycol concentration and the inhibitor level...
  • Page 17 Connect an air separator to the expansion tank only if the air elbowing down. separator is located on the suction side of the system circulator. VESTA VC boiler is equipped with an water connection and differential pressure feeding valve Therefore installation of additional system water fill connection is not necessary in most cases.

  • Page 18: 2 . Installing A Domestic Hot Water Dhw System ( )

    , in maximum 150 psi pressure relief valve on system. the hot water outlet The VESTA VC boiler has a built in high Ensure that the maximum BTU H rating on the pressure relief temperature shut off switch so install a pressure only relief valve “...
  • Page 19 Tighten the connection valves with care to avoid damage. valve is equal to or greater than the maximum input BTU H / VESTA recommends using unions and manual shut off valves rating of the boiler. on the cold water inlet and DHW outlet.

  • Page 20: 3 . Condensate Discharge

    This pump is not designed to be the system pump providing flow to radiant loops or baseboard. Therefore VESTA insists on using a Promary-Secondary pumping arrangement, the recommended method uses the traditional large diameter Primary loop.

  • Page 21: Connecting The Gas Supply

    VESTA recommends connecting the boiler as the first device downstream of the gas meter to ensure a sufficient gas supply gas adaptor Gas Adapter.
  • Page 22 To turn off gas to appliance Turn off all electric power to the appliance if service is to be Performed. Turn the manual gas valve located on the outside of the unit clockwise to the off position.(This unit has a switch(gas cut-off device) on front panel in the appliance, locate the switch button to off position) For your safety, read before operating...

  • Page 23: 2 . Measuring The Inlet Gas Pressure

    Measuring the Inlet Gas Pressure WARNING CAUTION The boiler cannot function without sufficient inlet gas pressure. Ensure that no cables are in the way before folding down the Measuring the inlet gas pressure should be performed by a PCB assembly If the assembly is stuck do not force it Doing licensed professional only.

  • Page 24: Venting The Boiler

    For best results keep the venting system as short and straight as VESTA also recommends installing a new vent system with this possible. appliance If reusing an existing vent system thoroughly inspect Locate the boiler as close as possible to the vent termination.
  • Page 25 Description Canadian Direct Vent Installations US Direct Vent Installations Clearance above grade veranda porch deck or balcony 12 in 30 cm 12 in 30 cm Clearance to window or door that may be opened 36 in 91 cm 12 in 30 cm Clearance to permanently closed window Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 ft 61 cm from...
  • Page 26 175 in VC 120 COMBI 180 000 will not be covered by the VESTA warranty If there is any question 13 1/4 in W X 13 1/4 in (H) about the possibility of back drafting in the installation location, use a direct venting system for the boiler.
  • Page 27 Canadian Non Direct Vent US Non Direct Vent Description Installations Installations Clearance above grade veranda porch deck or balcony 12 in 30 cm 12 in 30 cm 48 in 120 cm below or to side Clearance to window or door that may be opened 36 in 91 cm of opening 12 in 30 cm above opening...

  • Page 28: 2 . Selecting Vent Pipe Materials

    Selecting Vent Pipe Materials 5 3 . Venst Terminal Installation Precautions Note the following vent terminal installation requirements Venting requirements differ in the US and Canada Consult the following chart or the most recent edition of ANSI Z223 1 NFPA Do not install the vent terminal indoors.

  • Page 29: 4 . Terminating The Vent

    Terminating the Vent Vent Termination Installation Procedure(3" PVC) 1. Drill 2 holes.(Air intake hole and flue gas outlet hole) CAUTION 2. The length, Z, is as following In cold climate, freezing air can enter into the vent and cause freeze damage to unit. See Freeze Protection page in manual for appropriate precautions.
  • Page 30 Other Venting Design(Single pipe venting) 4. Insert the 90 PVC elbow field supplied to the air intake pipe. ˚ The 90 PVC elbow must have a bird screen(field supplied) ˚ VC : 3" Schedule 40 PVC ˚ The 90 PVC elbow must face in downward position to prevent Maximum Three 90 Elbows.
  • Page 31 Other Venting Design(Concentric Vent Termination) Other Venting Design(Side Wall) VC : 3" Schedule 40 PVC VC : 3" Schedule 40 PVC ˚ ˚ Maximum Three 90 Elbows. Maximum Three 90 Elbows. (Each 90 elbow is equivalent to 5ft linear vent pipe) ˚...

  • Page 32: Setting The Dip Switches

    Setting the DIP Switches Removing a boiler from a common vent system When removing an existing boiler, the following steps must CAUTION be followed Do not remove the front cover unless the power to the 1. Seal any unused openings in the common venting system. boiler is turned off or disconnected.

  • Page 33: Connecting The Power Supply

    Do not connect the boiler to a 220 240V AC power supply Doing so will damage the boiler and void the warranty. All the VESTA VC boilers come with a factory installed 3 pronged grounded plug The boiler can be plugged into any grounded electrical outlet nearby as it requires only 2 Amps It is not necessary to run a dedicated electrical line to the boiler.

  • Page 34: Installation Check List

    ” n the User’ s Manual If you have additional questions or need assistance with installation contact Technical Support at 1 800 761 0053 or refer to the technical support section of VESTAs website www vesta com ’ Installing the boiler...
  • Page 35 Connecting the Space Heating Piping Has the system been filled less than 30 psi and purged of air Does the piping incorporate means for air removal scoop separator etc Is there an expansion tank installed and set to the proper system pressure? If antifreeze has been used is it the proper type and is the concentration appropriate Connecting a Pressure Relief Valve Have you installed an approved pressure relief valve on the boiler?
  • Page 36 Connecting the Power Supply Is the supplied voltage 110 120V AC Is the boiler plugged into a properly grounded outlet? If you have made a direct power supply connection have you installed a power switch to facilitate end user maintenance? Have you checked the polarity of the electrical connection? Operating the boiler Have you shown the owner how to clean the inlet water filter?

  • Page 37: Operating The Boiler

    Operating the Boiler 9 1 Turning the Boiler On or Off 2. Press the Up or – ( Down buttons until the desired temperature appears on the display. 1. To turn the boiler on or off press the Power button You can adjust the temperature while the display is blink for 5 seconds.

  • Page 38: Setting Dhw Outlet Temperature Mode

    Setting DHW Outlet Temperature mode 9 2 2 Adjusting the DHW (Domestic Hot Water) Temperature 1. This mode is to see the DHW outlet temperature 2. Press the ‘ ’ + ‘ ‘ button for 5 seconds. WARNING The ‘ ‘...

  • Page 39: Appendixes

    Appendixes 10.1 Wiring Diagram WHITE Thermal fuse WHITE WHITE Zone Control If any of the original wire as supplied the boiler must be replaced, they must be replaced their equivalent. Appendixes...

  • Page 40: 10 2 . Component Assembly Diagrams And Parts Lists

    10 2 Component Assembly Diagrams and Parts Lists [VC 100 COMBI] 10 2 1 Case Assembly Appendixes...
  • Page 41 10 2 2 Burner Assembly Appendixes...
  • Page 42 10 2 3 Waterway Assembly Appendixes...
  • Page 43 Part List Part No Part Name Part No Part Name 201 2010373 Combustion Chamber Front 101 2010570 Case Assembly assembly 102 2070645 Chassis Assembly 202 2010316 103 3040379 Combustion Chamber Flue collar(3") Surround assembly 104 3040378 Air Intake Connector(3") 203 3100033 4X8 tapping screw 105 3090260 Flue collar sealing packing 204 3050089 Gas valve connection Nipple...
  • Page 44 Part List Part No Part Name Part No Part Name 301 3080136A Flue connector packing 329 2040119 3-Way Motor 2130441 Latent Heat Exchanger 330 2060229 Flow Switch Assembly 331 3030180 Return/Supply Connection Nipple 2070358 Sensible Heat Exchanger 332 3030193 Cold Water Inlet Connection Assembly Nipple 2130038...
  • Page 45 10 3 Component Assembly Diagrams and Parts Lists [VC 120, 140 COMBI] 10 3 1 Case Assembly Appendixes...
  • Page 46 10 3 2 urner Assembly Appendixes...
  • Page 47 10 3 3 Water Line Assembly Appendixes...
  • Page 48 Part List Part No Part Name Part No Part Name 2010570 2010362 Combustion Chamber surround Case Assembly 2070644 Chassis Assembly assembly 2020356 Burner assembly 3040379 Flue collar(3") 3040378 2010377 Combustion Chamber Front Air Intake Connector(3") 3090260 Flue collar sealing packing assembly 3011566 3100051 4X10 tapping screw...
  • Page 49 Part List Part No Part Name Part No Part Name 301 3080136 2060229 Flow switch Flue connector packing 2130 2060228 Water supplementation device Latent heat exchanger assembly 2130052 3010925 Fixing clip(P6) Duct assembly 2070469 3080143 Backup ring ( 22 Ø Sensible heat exchanger 3080181 Packing(P14.5) assembly...
  • Page 50 Condensing Combi Boiler Installation Manual Version 1 0 May 30 2016 : . ( Getting Service If your boiler requires service you have several options for getting service Contact Technical Support at 1 800 761 0053 or on the website www vestahws.com For warranty service always contact Technical Support first Contact the technician or professional who installed your boiler.

This manual is also suitable for:

Vc 100 lp combiVc 120 combiVc 120 lp combiVc 140 combiVc 140 lp combi

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