Nature's Comfort NCB-120 Installation And Operating Manual Download Page 1

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Installation and Operating Manual For

2009-2014

NCB-175, NCB-250

Non-Pressurized Outdoor Wood Boiler

Manufactured by Nature’s Comfort LLC.

Made in the USA

Full color and French manual available online at: / Couleur et manuel en français est disponible en ligne à:

www.naturescomfortllc.com

Built Like A Tank

With Laser Precision

SAVE THESE INSTRUCTIONS

Report # 434-O-01-2 Revision 2014-2.0

Summary of Contents for NCB-120

Page 1: ...od Boiler Manufactured by Nature s Comfort LLC Made in the USA Full color and French manual available online at Couleur et manuel en français est disponible en ligne à www naturescomfortllc com Built Like A Tank With Laser Precision SAVE THESE INSTRUCTIONS Report 434 O 01 2 Revision 2014 2 0 ...

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Page 3: ...f you are in need of insulated pex heat exchangers or other parts for your new boiler call your dealer or call us at 877 251 7740 for the lowest prices Boiler water treatment and test required at time of installation and annually to validate warranty See warranty page for complete details Visit www naturescomfortllc com each year to confirm the most up to date installation operation warranty infor...

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Page 5: ...ow 16 K InstallingOn AnExistingIndoorBoiler 16 L FillingTheBoilerwithWater 18 M FloatLevel 18 N BleedingAirFromHeatExchangers 18 O Pre conditioningRopeSeals 18 III HeatingDomesticWater PoolsandSpa s A SidearmOrPlateHeatExchangerForDomesticHotWater 19 B HeatingaPoolorSpa 20 IV Operation A WoodRequirements 21 B StartingAFire 21 C LoadingWood 21 D PowerLossProcedure RunningOnAGenerator 22 E WarmWeath...

Page 6: ...5 VAC Water Pump 115 VAC 2A max Chimney 6 inside diameter NCB 175 220 000 BTU 175 gallon water tank 4 000 sq ft 67L x 50W x 85H 1733 pounds NCB 250 300 000 BTU 250 gallon water tank 6 000 sq ft 85L x 50W x 85H 2114 pounds Will heat up to x sq ft This must include all heated areas of home as well as basement with proper installation properly insulated building and when properly seasoned hardwood is...

Page 7: ...S Flammable liquids household or yard waste can reduce the life of the boiler will void the warranty and is illegal in most areas 5 Pause for 30 seconds between the first latch and the safety latch to allow any combustion gases to burn off Always keep fueling and de ashing doors closed and maintain all seals in good condition 6 In the event of a runaway fire make sure all doors are tightly shut un...

Page 8: ...gle zone You may install fittings to have ports for up to 4 zones Consult your dealer Additional port setups with pumps are also available from Nature s Comfort when ordering a new unit Single Zone setup 1 Power from home feeds GFCI 2 Control power for pump aquastat solenoid blower and light is fed through main plug by GFCI 3 Switch for shutting off power to aquastat which will shut down blower so...

Page 9: ...nger that must be installed in the existing furnace system If you have a forced air system a water to air heat coil must be installed in the ductwork When air travels through heat is extracted and hot air is emitted out of the registers A water to water plate heat exchanger must be used if you have a hydronic radiant heating system When connecting to an in floor heating system in concrete a mixing...

Page 10: ...nces and to the prevailing wind direction 2 Do not locate the boiler within 100 ft of a residence not served by the boiler Be considerate of neighboring residences properties parks etc 3 Do not locate the boiler near any combustible materials gasoline or other flammable liquids or gases 4 The boiler should be located away from dry grassy areas and any buildings to minimize danger of fires 5 Check ...

Page 11: ...ted pex pipe for transferring the heated water from the boiler to the home Minimum pipe size permitted is 1 Platinum 3 wrap 4 drain tile Platinum 4 wrap 5 drain tile insulated pipe is available for purchase through Nature s Comfort or your dealer It may contain twine for pulling electrical wire If possible do this with the pipe laid out straight for ease of pulling CALL YOUR LOCAL MISS DIG HOTLINE...

Page 12: ...r maximum BTU output A 1 pipe can carry up to 37 more BTUs due to higher water flow The fittings above would need to be changed to accommodate 1 Pex The Armstrong E9 2 pump available from Nature s Comfort or your dealer has the ability to do this in a 1 pipe within distance height limitations E Wiring the Boiler A qualified electrician must wire this boiler in accordance with the National Electric...

Page 13: ...you have a 2 wire system or the thermostat is the advanced computerized type that communicates back and forth between the furnace typically found on heat pump systems Do not use this method if your HVAC system utilizes a multi speed blower All of the parts below are available through your dealer or Nature s Comfort ...

Page 14: ...k Use adhesive backed foam tape used for insulating doors and windows to seal around the frame and foil tape to seal off the opening you make in the plenum heat for the heat exchanger Make sure the fittings for the supply and return lines are easy to get to once the heat exchanger is installed You should be able to find a heat exchanger to fit most popular sizes of plenums If you are unable to the...

Page 15: ... Slide the heat exchanger carefully into the plenum to check the fit again Once proper fitting is verified you can seal off the ends of the heat exchanger and the hole you made in the plenum with foil or duct tape I Installing In A Small Plenum You can install a heat exchanger in a plenum that is smaller than the length of the heat exchanger as follows Make cuts at the top and bottom of the plenum...

Page 16: ... outdoor boiler to the indoor hydronic system so that the two systems remain isolated see next diagram As shown in the above figure the two systems are totally isolated from each other so that the existing hydronic system remains undisturbed and functions exactly as it did before Water that circulates through the outdoor boiler is never circulated through the home s hydronic system or vice versa A...

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Page 18: ...rculated for 1 hour test Nitrite level to assure required 1 000 1 500ppm and add treatment if below this level Submit a water sample to your dealer or Nature s Comfort for official warranty Nitrite testing and also once a year thereafter REQUIRED See warranty for full details M Float Level After priming and starting the circulation pump and bleeding the heat exchanger see next section let the boil...

Page 19: ...oiler must first go to the top side port This creates twice the domestic water flow through the sidearm as opposed to coming in at the bottom side port For the fastest recovery install a small circulation pump on the domestic side that is controlled by a strap on thermostat or thermal snap disc placed on bottom line on the domestic side Hookups to the domestic side must be connected to the drain a...

Page 20: ...o a pool or spa since the chemicals used in a pool spa are destructive to the boiler Pool heat exchangers are available from Nature s Comfort or your dealer For sizing you will need to know the volume of the pool in cubic feet or gallons Be sure to install isolation and bypass valves for easy servicing and winter draining and also place before a chlorinator Install a separate line and pump on the ...

Page 21: ...d will not dry out season properly until split Hardwoods burn longer than softwoods as they are denser and have more available BTU s Larger pieces burn longer than smaller pieces but take longer to season properly Wood with higher moisture content wastes energy to dry out wood and produces increased amounts of creosote which when mixed with ash and heat is corrosive and will shorten the life of th...

Page 22: ...as there are too many variables outside of its control D Power Loss Running On A Generator The controls are designed for the control plug to be used on a generator or vehicle inverter if needed If the water jacket ever starts to overheat from lack of circulation during a power outage first make sure to keep the water level full then use this feature to keep the pump running E Warm Weather Operatio...

Page 23: ...e removed to reduce the risk of a chimney fire Smaller more frequent loading and dry seasoned wood will help limit this A small and intense fire is preferable to a large smoldering one to reduce the amount of creosote deposition If a soot or creosote fire occurs keep all doors closed and run the boiler normally until all wood burns out then shut the boiler down and clean any soot or creosote depos...

Page 24: ...have as a spare Water Since water quality characteristics greatly vary across the USA some customers get much longer life out of a pump than others Filling a boiler with softened water adding and maintaining treatment so there s 1 000 1 500ppm of nitrites is the best thing you can do for pump and boiler life While there is a one year warranty on our pumps from customer s date of purchase they must...

Page 25: ...he rotor To remove the canister first remove the rotor then tap on the bleeder screw to remove the canister from the motor use this procedure for replacing the entire cartridge as well White vinegar or a calcium and lime cleaner can assist for stubborn buildup Do not allow any liquids to enter the motor Squealing Comes from the bearings not having the air bled before running or not having enough c...

Page 26: ...ou should ever have a problem or question refer to this manual or call your dealer If your dealer does not have the information you need request they contact Nature s Comfort and your dealer will be further educated to provide the best possible customer service Please keep in mind that Nature s Comfort built the boiler but did not install it and has no control over the installation operation effic...

Page 27: ...is low in boiler Aqua stat malfunction Not enough demand or warm weather Make sure doors and covers are sealed adjust if necessary Adjust damper Larger pump or pipe reduce of fittings Add water to keep full Replace aqua stat Load smaller amounts to prevent large coal bed from over producing Boiler fire does not stay lit Not leaving some coals in burn area No air flow Chimney plugged with creosote ...

Page 28: ...Page 28 of 32 Copy of Safety Labels ...

Page 29: ...Side Skin 17 Lower Control Jamb Outlet 6 Front Gable Skin 18 Firebox Door Hinge Switch 7 19 Ash Pan Latch Aquastat 8 Upper Side Frame 20 Firebox Door Latch Solenoid 9 Rubber Cap 21 Control Panel Rear Cover Blower 10 Stainless Steel Level Float 22 Control Panel Front Circulation Pump 11 Left Roof Panel 23 Solenoid Cover Outdoor Light 12 Right Roof Panel 24 Blower Intake Cover Guide Bracket Temperat...

Page 30: ...d a water sample must be submitted for nitrite testing when first filled and then annually at the end of a heating season to ensure proper nitrite concentration 1 000 1 500ppm for your warranty to remain valid The water jacket must remain full of properly treated water at all times after installation save for draining flushing and re treating Minimum recommended initial mix ratios for each boiler ...

Page 31: ...f the boiler If you should ever have a problem or question refer to this manual or call your dealer If your dealer does not have the information you need request they contact Nature s Comfort and your dealer will be further educated to provide the best possible customer service Please keep in mind that Nature s Comfort built the boiler but did not install it and has no control over the installatio...

Page 32: ..._______________________________________ Business and first last name Date of Installation _________________________________ In case of questions Installed By ________________________________________________________________ Business and first last name Installer s Address ________________________________________________________________ Street ________________________________________________________...

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