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INSTRUCTION AND PARTS BOOK
FOR
MODELS 526, 2900, & 4000
Installation must be made in accordance with local and state codes which
may differ from manual. Save these instructions.
WOOD/COAL FURNACES
Phone 715/654-5132
Fax 715/654-5513
07/97
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INTRODUCTION Dear Woodchuck Owner, Congratulations on your purchase of a Woodchuck heating appliance. Un- doubtedly you have given much consideration to your purchase and we’re proud that you have selected a Woodchuck. Pride in craftsmanship and engi- neering have made your Woodchuck the finest heating appliance available to- day. Solid fuels are abundant and inexpensive. Wood is our only renewable source of fuel and conservative estimates put our coal reserves at 800 years. Our dual fuel units
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TABLE OF CONTENTS Page Introduction..........................................................................................................................................................2 Table of Contents................................................................................................................................................3 Furnace Safety....................................................................................................................................
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FURNACE SAFETY THERE ARE INHERENT HAZARDS ASSOCIATED WITH THE OPERATION OF WOOD/COAL FURNACES. FOR YOUR SAFETY READ, UNDERSTAND, AND HEED THE FOLLOWING: DANGER: RISK OF FIRE OR EXPLOSION. DO NOT BURN GARBAGE, GASOLINE, DRAIN OIL, OR OTHER FLAMMABLE LIQUIDS. FAILURE TO HEED MAY RESULT IN SERIOUS PERSONAL INJURY OR DEATH. DANGER: NEVER USE CHEMICALS OR FLUIDS SUCH AS GASOLINE, CHARCOAL LIGHTER FLUID, DRAIN OIL, FUEL OIL OR KEROSENE TO LIGHT A FIRE IN YOUR WOODCHUCK. FAILURE TO HEED MAY RESULT IN S
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SPECIFICATIONS MODEL 526 Height 42.5" Width 24" Depth 26" Blower 850 to 1850 CFM Max. BTU Capacity 120,000 Log Size 22" Loading Door Size 14"x12" Weight, Approx. 445 lbs. Warm Air Plenum 20"x23" Flue Outlet 6" Dia. Flue Collar Height 41" Overall Height Secondary Heat Exchange YES Listings UL391, CSA B366, 1-M ETLM Firebox Chamber 6.10 cu. ft. MODEL 2900 MODEL 4000 Height 51.5" Height 48.5" Width 26" Width 26" Depth 33" Depth 28" Blower 850 to 1850 CFM Blower 850 to 1850 CFM Max. BTU Capacity 180
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GENERAL INFORMATION more. Here is how: when combustion air enters a Woodchuck furnace it enters into a “draft Woodchuck furnaces represent the ultimate in solid fuel and dual fuel heating appliances. From the mas- sive model 4000 to the economy model 526, each unit channel." Here it comes into contact with the hot fire- is designed to be attractive, durable and efficient while box front and is warmed before entering the firebox. providing the safety and comfort you and your family The draft chan
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enough to operate properly in mild weather, it will not more comfortable and lose less heat through your ceil- be large enough to keep the house ings as illustrated in figure 2. warm in cold weather. This could cause the furnace to This situation can be especially troublesome in overheat and a loss of heat up the chimney. The result multi-level homes as illustrated in figure 3. As soon as then is a compromise which is neither efficient or com- the blower shuts off, the air in the home begins to
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OPERATION ! IF YOU HAVE CHIMNEY FIRE ! COMMON SENSE Meyer Mfg. Corp. recommends the following actions: Please read the following before firing your furnace. It is most important that you follow these suggestions and 1. Shut any doors and air inlet dampers and draft con- limitations in order to maintain your warranty and guar- trol. This should take no longer than a few seconds. antee the long life of your furnace. CLOSED 2. Alert everyone in the house. NOTE: Smoke detectors and fire extinguisher
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DOUBLE LATCH COMFORT HEAT EXCHANGER LOADING DOOR CONTROL CENTER COMFORT CONTROL ROD CONTROL CENTER SHAKER GRATE FAN/LIMIT FAN/LIMIT DOUBLE LATCH LOADING DOOR DRAFT CHANNEL MANUAL DRAFT SELECTOR - 80/20 (Forced Draft Is COMBUSTION AIR Optional) MODEL 526 RATIO CONTROL MODELS 2900/4000 ASH DOOR ASH DOOR FORCED DRAFT SHAKER GRATE CRANK. BLOWER SHAKER GRATES ARE OPTIONAL FIGURE 5 WOODCHUCK CONTROLS NOTE: All models are equipped with a “low limit” which (OPTIONAL) will not allow the auto draft to ope
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NOTE: On airtight units, the burning time is controlled cluded in the owner’s manual package for monitoring mostly by the draft controls on the furnace, contrary to stack temperature. Install the flue temperature ther- the old type of pot belly stoves where the smoke pipe mometer at the rear of the furnace on the smoke pipe damper controlled the burning time. where it connects to the collar on the back of the Woodchuck. 300-400 degrees should be maintained NOTE: With new steel, there is a small
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A coal fire should not be poked or broken up as this BURNING COAL IN YOUR WOOD- tends to bring ash to the surface of the coal bed where it CHUCK may fuse. If the ash fuses, clinkers will form. It may be necessary to remove all unburned material and ash from Never attempt to burn coal without a shaker grate. the firebox to remove clinkers. These should be re- Shaker grates are standard on Models 2900 and 4000 moved with gloves or tongs, and as always, put into a but optional on Model 526. metalli
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Coal firing produces much more ash than wood. These ASH REMOVAL ashes must be removed often (possibly daily) in order to avoid piling up too closely to the grates. Removal of Ash should always be put into an air-tight, metal con- the coal ash will prevent warpage and damage to tainer. grates, and allow passage of primary air to the coal bed. CAUTION Unlike wood ash, coal ash cannot be used as fertilizer. KEEP ASH PAN OUT OF UNIT DURING OPERA- All coal contains small amounts of dangerous elemen
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TROUBLE SHOOTING PROBLEM POSSIBLE CAUSE SOLUTION 1. Main blower vibrating Loose Allen screw on squirrel cage. Tighten Allen screw, be sure squirrel when in use. cage did not move to one side or the other. Bad motor bearings. Return blower to your local dealer for a replacement. Weights on squirrel cage wheel moved in ship- Try to adjust it yourself or return ment. blower for replacement. 2. Main blower continues to Manual control turned on (fan/limit control). Check fan/limit control switch. Pus
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PROBLEM POSSIBLE CAUSE SOLUTION 9. Excessive amounts of Improper draft. Measure with draft gauge-should smoke coming out loading have .04 to .06 water column. door when loading. Chimney cap too close to top of chimney. Relocate. Too long of run of smoke pipe from Woodchuck Relocate Woodchuck closer to to chimney. chimney. 10. Puffing of smoke Improper draft. Check draft with gauge. Should be through draft control. .04 to .06 water column. Down draft on chimney. Check for cold spots on chimney or
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INSTALLATION GENERAL REQUIREMENTS CAUTION: EQUIPMENT MUST BE INSTALLED BY A QUALIFIED HEATING PERSON. CAUTION: ONLY “CLASS A” ALL-FUEL OR SOLID FUEL CHIM- NEYS INTENDED FOR USE WITH YOUR WOOD- CHUCK SHOULD BE USED. FIRST AND ABOVE ALL is safety for you and your family. MUST USE: Class A Masonry or ULC listed, manufac- tured Class A All Fuels Chimney. RECOMMENDED SIZE: Rectangular 8"x12" or Round 8". DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVING ANOTHER APPLIANCE. The Woodchuck is to be used
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THE CAP SHOULD BE SUCH THAT IT HELPS TO PREVENT DOWNDRAFT WHILE PROVIDING ADEQUATE EXHAUST DRAFT. MIN. 3’ FROM TOP OF CHIMNEY TO POINT AT WHICH IT PASSES THROUGH THE ROOF TOP OF CHIMNEY MUST BE AT LEAST 2’ HIGHER THAN PEAK OR HIGHEST PORTION OF ROOF WITHIN 10’ HORIZONTALLY. ALSO SEE FIGURE 9. A CHIMNEY WHICH RISES WITHIN HOUSE IS BETTER INSULATED THAN A CHIMNEY WHICH IS LOCATED OUTSIDE THE HOUSE AND IS EXPOSED TO WEATHER. THE CHIMNEY FLUE MUST HAVE A CROSS SECTIONAL AREA AT LEAST EQUAL TO OR LAR
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Your unit should be place on a non-combustible floor or which can ignite and cause severe damage to any 3/8" thick fireproof millboard or equivalent which ex- chimney. MAKE SURE YOUR WOODCHUCK IS IN- tends at least 8" from the sides and rear and extends STALLED INTO A PROPER CHIMNEY. 24" from the front. Leave a minimum clearance of 36" in front of your unit. This is for safe, easy loading and For maximum safety and efficiency never install the cleaning of your unit. Woodchuck furnace into the sa
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When using approved factory built metal chimneys, you INSTALLATION OF A BAROMETRIC DRAFT must have at least 2" of clearance when going through a wall or next to a wall. A typical factory chimney instal- Some codes and NFPA require draft regulators in the lation is shown on figure 9. chimney connector of wood or coal furnaces and boil- ers, and manufacturers recommend their use with some stoves. There is some doubt among wood heat experts INSTALLING YOUR WOODCHUCK as to whether use of barometric
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MANUAL DAMPER MAY BE INSTALLED BETWEEN BAROMETRIC DAMPER AND CHIMNEY With no draft in chimney, regulator is closed, no air gets in. Moderate suction in chimney pulls regulator open enough to maintain desired draft for appliance. Excessive suction in chimney pulls regulator further FIGURE 10 A BAROMETRIC DRAFT REGULA- open, allowing substantial air into chimney connector. TOR AND ITS INTENDED EFFECT 600 ft/min to 1000 ft/min at the registers. NEVER sup- AIR DUCT INSTALLATION ply less than 150 sq.
