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- NCB-120
- Installation and operation instructions manual
Nature's Comfort NCB-120 Installation and operation instructions manual
Summary of NCB-120
Page 1
Page 1 of 25 istallatio ad operatig istructios for 2006-2008 ature’s comfort wood/coal hot water ope system boilers (o-presurized) cb-120 cb-175 cb-250 cb-325 manufactured by ature’s comfort llc. Shipshewana, i www.Naturescomfortllc.Com built like a tak with laser precisio revision 2012 2.5.
Page 2: Itroductio
Page 2 of 25 itroductio thank youand congratulations on the purchase of your new nature’s comfort boiler! With the purchase of this nature’s comfort boiler, you can now appreciate the high degree of craftsmanship and reliability that are a result of every boiler being carefully hand-built. Your choi...
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Page 3 of 25 table of contents i. General information a. Terminology ............................................................................. 4 b. Specifications .......................................................................... 4 c. Clearance to combustibles ..............................
Page 4: I. General Information
Page 4 of 25 i. General information a. Terminology in this manual a. Boiler: refers to the nature’s comfort boiler you purchased . B. Furnace: refers to an indoor gas or oil fired unit which heats the air for your home. This would be your existing furnace. B. Specifications type of fuel: wood and co...
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Page 5 of 25 e. Safety precautions do not operate this equipment for anything other than its intended purpose or for anything other than in accordance with the instructions contained in this manual and all other instructions accompanying the boiler. It is important to observe safety precautions to p...
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Page 6 of 25 f. 20 year limited warranty nature's comfort llc, of shipshewana, in 46565 warrants material and labor on any defects in workmanship on the fire drum for a period of 20 years from the purchase date to the original owner only (see proration below). If there is a leak in your properly del...
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Page 7 of 25 g. Customer warranty card please fill in the following information and keep for future reference. Name: ____________________________________ (first) (last) address: ___________________________________ (street) ___________________________________ (city) (state) (zip) phone: _________ ___...
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Page 8 of 25 ii. Best outdoor boiler burn practices read and follow all operating instructions. A. Fuel used: you may burn any hardwood, softwood, pallets that have been split up and coal but never burn driftwood, painted, stained or pressure treated wood. Do not burn trash, plastics, gasoline, rubb...
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Page 9 of 25 the following are general guidelines for wood selection: keep wood covered but open to the wind as rain and snow will greatly hamper the seasoning. Hardwoods burn longer than softwoods as they are denser and have more available btu’s. Larger pieces burn longer than small pieces but take...
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Page 10 of 25 the outside boiler has a hot water thermostat (aquastat) with a thermocouple that is inserted into a brass drywell that senses the water temperature of the unit. When the temperature of water in the boiler falls below the “low” temperature setting on the aquastat, the blower turns on t...
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Page 11 of 25 k. Insulated pex pipe we highly recommend the use of insulated pex pipe for the best heat transfer possible from the boiler to your home. 4” triple wrap or 5” five wrap insulated pipe is available for purchase through your dealer or nature’s comfort. L. Adjusting airflow on draft blowe...
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Page 12 of 25 c. Plumbing hook up 1. Plumbing and electrical connections are made through the rear access door. 2. The water lines must be buried below the frost line to prevent freezing. The depth of the trench varies in different regions of the country. Be completely sure about the correct depth n...
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Page 13 of 25 low iron content if possible. During the first heating cycle the water might expand and overflow. This is normal and will occur anytime too much water has been added. After priming and starting the circulation pump and bleeding the heat exchanger let your boiler heat up and run for 24 ...
Page 14
Page 14 of 25 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 your ductwork must be modified to accept the heat exchanger. This is be...
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Page 15 of 25 install the braces the proper width apart as shown above. Secure them in place using pop rivets or self taping screws. You will need four pieces, two on the top and bottom. Slide the heat exchanger carefully into the plenum to check the fit again. Once proper fitting is verified, you c...
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Page 16 of 25 l. Air flow through plenum the motors on most force air furnaces have three speeds to provide various rates of air movement. Please consult a local furnace specialist if you want to change the airflow of your existing furnace system. M. Thermostat wiring layout the two diagrams below a...
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Page 17 of 25 follow this diagram for when you do not have a 4 wire thermostat system. Mount the new t-stat in a central location on the main floor of your home where you can easily run a wire to the furnace. Put the transformer & relay in the furnace control area. Iv. Other hook ups - heating domes...
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Page 19 of 25 b. Warm weather operation and hot water bypass operation in warmer weather will be tricky as too many coals will cause the water jacket to boil if not enough heat is being used. To compensate, load less wood and/or purchase a chimney damper to reduce draft through the chimney. Adequate...
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Page 20 of 25 d. Connecting the boiler to an existing indoor boiler a plate heat exchanger is needed to transfer heat from the outdoor boiler to another indoor boiler or hydronic system so that the two systems remain isolated from each other. As shown in the above figure, the two systems are totally...
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Page 21 of 25 v. Maintenance a. Cleaning out ash moisture combined with ash will eat through a boiler in short order and ash corrosion is not covered under warranty. With our grate and ash pan, ashes can be removed while the fire is still burning. Use a hoe or other tool to pull ashes away from the ...
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Page 22 of 25 to inspect and clean the rotor and canister, take the 4 allen screws off to remove the motor from the volute. ***note: the rotor shaft is ceramic. If it or the pump is dropped, hit, bounced or jarred it can fracture and/or break. Use care when handling.*** gently use a screwdriver to p...
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Page 23 of 25 vi. Trouble shooting problem cause solution boiler dose not come up to temperature. Green or soft wood is being used, boiler is in the open were the wind blows under boiler use dry, hard wood take one or two inches of hard board insulation and place under boiler between legs then add 1...
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Page 24 of 25 vii. Disclaimer all installation and operation must follow federal, provincial, state and local codes, ordinances and laws. Nature’s comfort boilers are not intended to be used in urban areas. Nature’s comfort boilers are not intended to be the only source of heat. Therefore, a backup ...
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Page 25 of 25 viii warranty registration card (to be mailed in) all fields must be filled out your name: __________________________________________ (first) (middle) (last) address: __________________________________________ (street) __________________________________________ (city) (state) (zip) pho...