DS Stoves SF250 Owner'S Manual Download

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Before you install or operate a DS Stoker

Furnace, you must:

- Read all instructions carefully

- Install smoke and carbon monoxide

detectors.

MADE IN USA

D.S. MACHINE SHOP

Do Not

Discard

This

Manual

DS Stoker Furnace

High Ef ficiency Auger Fed Rice Coal Stoker Furnace

Model SF250

OWNER’S MANUAL

This Furnace meets

U.S. Test Standard UL 391

CAN/CSA-B366.1

Summary of Contents for SF250

Page 1: ...uctions carefully Install smoke and carbon monoxide detectors MADE IN USA By D S MACHINE SHOP Do Not Discard This Manual DS Stoker Furnace High Efficiency Auger Fed Rice Coal Stoker Furnace Model SF250 OWNER S MANUAL This Furnace meets U S Test Standard UL 391 CAN CSA B366 1 ...

Page 2: ...per joint 18 Always use a mixing valve when hooking up a domestic coil 19 The area in which the furnace is located must have an adequate amount of air for combustion Open basements without storm windows or tight doors generally provide adequate air infiltration If the furnace is located in a separate room with a tight door ventilation must be provided to and open area within the building or to the...

Page 3: ...pipe connects to a masonry chimney the flue to the chimney should be larger than the single wall chimney connector so you can insert the pipe out to the inside edge of the chimney but not past Then seal as tight as possible and cover with a trim collar 3 Chimney Requirements Use an 8 Class A approved chimney Refer to manufacture s instructions The minimum height of a chimney system for the D S Fur...

Page 4: ...ttach snap disc conduit with 90o connector to SF250 CSMP and insert snap disc wiring through snap disc conduit See Fig 3 9 Assemble auger motor to auger motor mounting bracket part SF250 AMM using 4 bolts nuts provided with auger motor Install part SF250 AMM to outside of part SF250 CSMP using 2 5 16 3 4 D SS hex bolts and 2 5 16 I SS nut See Fig 3 10 Insert standard auger pipe part SF250 1AP into...

Page 5: ...er box You can assemble filter box to have filter on right or left side of furnace Do not install top of filter box until filter box is screwed to back of unit Screw filter box to back of unit do not completely tighten the 2 top screws because you need room to slide the top of filter box in behind these screws Install blower on back of unit connect conduit from electrical box to hole in the top of...

Page 6: ...LECTRICIAN OR D S IS NOT RESPONSIBLE FOR WARRANTY Installation Instructions Limit Switch and Pot Snap Disc Wiring Diagram Blue is High Limit Side Back Inside Panel Limit Switch Yellow is distribution blower side Wiring diagram with all wires included ...

Page 7: ...7 FURNACE MUST BE WIRED BY A QUALIFIED LICENSED ELECTRICIAN OR D S IS NOT RESPONSIBLE FOR WARRANTY 24 Volt Wiring Diagram 120 Volt Wiring Diagram ...

Page 8: ...case of power outage you should always run the hot air plenum up so that it can circulate by gravity The supply duct must be constructed of material with a minimum 250o temperature rating If you are using this unit as an add on furnace locate as close to the central furnace as possible NOTE Do Not use a chimney serving another appliance Fig 9 240 Volt Wiring Diagram ...

Page 9: ...9 Optional Domestic Coil Hook Up Optional Domestic Coil Hook Up Must have Aqua Pure or any water softener system when using coil to heat water ...

Page 10: ...d conditions This feed rate may cause outfire conditions during the time you are only maintaining pot fire for warmer seasons See outfire section It is recommended to record both spring fall and winter combustion air and coal feed rate settings for easy reference Adjusting The Air Supply 1 Whenever the coal feed rate is adjusted the air supply setting needs to be adjusted as well See chart below T...

Page 11: ...hough there is no call for heat by the thermostat This is accomplished by the interval timer A normal run time in the peak heating season is approximately 30 seconds every half hour This is a suggested start and times may have to be adjusted to meet conditions and time of year Due to the wide range in the quality of coal a timer setting of 2 minutes per hour may produce an acceptable burn Its an e...

Page 12: ...r and where single wall chimney connector enters the furnace Exhaust fans can also cause this problem by drawing air down the chim ney through the burner and out of the housing inlet This can be corrected by providing adequate out side air openings for both the stoker and the exhaust fan or discontinuing the use of exhaust fan Cleaning and Maintenance Turn off all power supply or disconnect power ...

Page 13: ... This can be located on either the right or left side of boiler Make sure you put sealant around auger pipe where it enters hopper Because of carbon monoxide keep hopper lid closed when not loading coal very important 3 Never hook 55 gallon barrel or coal bin to short hopper that gets shipped with boiler because of carbon monoxide you must add either 5 or 8 auger option For coal bin option we reco...

Page 14: ...ng SF250 AB 1 Auger Shaft Shear Bolt SF250 ASSB 1 Auger Shaft Shear Bolt Hair Pin 04 x 8 SF250 HPIN Sheet Metal 1 Top Sheet Metal SF250 TSM 1 Left Sheet Metal SF250 LSSM 1 Right Sheet Metal SF250 RSSM 1 Back Sheet Metal SF250 BSM 1 Motor Cover shield SF250 MCP 1 Auger Side Cover Plate SF250 ASMPC 1 Return Box Top SF250 RBT 1 Return Box Filter Side SF250 RBFS 1 Return Box Side SF250 RBS 1 Return Bo...

Page 15: ...ces are connected to the chimney impairing the draft Make sure all of chimney mortar connections are airtight Check chimney for possible down draft caused by taller surrounding trees or objects Make sure clean out door in the chimney is closed tight if you have one When start up the chimney is cold so you will have less draft Check and clean chimney and single wall chimney connectors Problem 3 Odo...

Page 16: ... owner is responsible for labor and costs to complete the repair The owner may at his option and with D S Stoves approval have the furnace shipped to the factory for repair All labor and material costs for repair at the factory will be borne by D S Stoves The owner is responsible for all shipping costs Failure to follow installation and basic operation recommendations written in this manual neglig...

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