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FOr uSe In the u.S. OnlY. nOt SuItaBle FOr InStallatIOn In MOBIle hOMeS IF thIS BOIler IS nOt PrOPerlY InStalled, a hOuSe FIre MaY reSult. FOr YOur SaFetY, FOllOw InStallatIOn dIreCtIOnS. InStallatIOn ShOuld Be PerFOrMed BY a qualIFIed InStaller. COntaCt lOCal BuIldIng Or FIre OFFICIalS aBOut reStrICtIOnS and InStallatIOn InSPeCtIOn requIreMentS In YOur area. COntaCt YOur lOCal authOrItY (SuCh aS MunICIPal BuIldIng dePartMent, FIre dePartMent, FIre PreVentIOn Bureau, etC.) tO deterMIne the need FOr a PerMIt. thIS aPPlIanCe IS alSO aPPrOVed FOr InStallatIOn IntO a ShOP. SaVe theSe InStruCtIOnS. 3-90-70741R10_09/12 Index Introduction 4 Specifications 5 Hot Water Coil 5 warnings 6 Packing list 7 assembly 8 Venting 11 Installation 14 Verti-Flow™ Stoker Control 17 Operation 19 Feed adjustment 19 Maintenance 20 troubleshooting 22 aquastat Installation 23 Wiring Diagram 25 Service Parts 26 warranty 29 • = Contains updated information Introduction The VF 3000 Stoker Boiler features our patented Verti-Flow™ Coal Feeder. The VF 3000 has a 5,000 to 95,000 BTU range and 250 lb. coal hopper capacity. An aquastat is used to activate the feeder when more heat is needed to maintain the set water temperature. When the Aquastat senses the water is at the set temperature the feeder stops feeding coal. Now the Verti-flow™ Stoker Control takes over to maintain a very low fire until more heat is needed. Properly installed and maintained, your VF 3000 will heat your home for a lifetime. Therefore, have your unit professionally installed. Consult with your Harman Dealer regarding proper maintenence. Specifications/Hot Water Coil Hot Water Coil to install a hot water coil: 1. Remove the blank plate covering the water coil opening. 2. Insert the coil into the boiler as shown. Be sure to put a new gasket around the coil plate. 3. Tighten all bolts evenly. 4. Fill the boiler and check for leaks before and after the boiler is up to temperature. Rust caused by a leak can reduce the life of the boiler. 5. A tempering valve may be installed between the in and out pipes to reduce the maximum water temperature at the tap. nOte: This hot water coil is rated at 4 gallons per minute. warnings never sleep in the same room with any coal burning stove. Always empty the hopper when not burning for more than a week. When left standing for long periods with wet coal, the pusher block will rust and corrode, causing it to seize. If the stoker is then turned “on”, damage to the pusher assembly and feed motor will result. This will be considered neglect and will void the warranty on those parts. Always check to see if moving parts are free before using if the unit has not been burned for a period of time. This can best be determined by shaking the adjuster rod. Freshly delivered coal is typically watered down to minimize dust when loading and unloading. Wet rice coal does not flow as well as damp or dry coal, and may bind or bridge in the hopper. We do not recommend loading your hopper with wet coal. If you must burn wet coal, the feed rate will likely need increased, in order to get the same size fire. As the wet coal in the hopper dries out, the feed rate will need decreased to avoid over-feeding. Using wet coal, in an emergency, will likely not damage your stove as long as it is hot and burning at the time. The damage is caused when the hopper has wet coal in it when the stove is cold. This will cause rust and corrosion which is considered neglect and will not be covered by the product warranty. Appliance Placement: The VF3000 must be installed on a non-combustible floor. The noncombustible floor must also extend a minimum of 18” in front of the firebox door, and 8” to the sides. Maintain a minimum of 18” of clearance to combustible walls, 24” to the ceiling and keep combustible materials a minimum of 36” away from in front of the appliance. This boiler may be connected to an existing boiler heating system. Inter-connection may be done in a series or parallel configuration. Consult with your licensed plumber or HVAC professional to determine the most effective installation for your heating needs. This unit must be connected to a chimney capable of providing a -.04 minimum draft.WARNING: If the chimney has no draft, coal gases may escape from the unit and stove pipe. These gases are toxic and can be fatal. It is recommended that a CO detector be installed to warn of this condition. 3-90-70741R10_09/12Packing list Adapter Plate Firebricks Grate Holder with Gasket (2) Grate Inserts Combustion Blower Aquastat-(3 Pieces) and Sensor Temp/Pressure Gauge Pressure Relief Valve NOTE: Although required for unit completion, the Feeder and Hopper are sold as separate items. Packing list Adapter Plate Firebricks Grate Holder with Gasket (2) Grate Inserts Combustion Blower Aquastat-(3 Pieces) and Sensor Temp/Pressure Gauge Pressure Relief Valve NOTE: Although required for unit completion, the Feeder and Hopper are sold as separate items. assembly Top Left Side Hopp...