United States Stove 22AF Operating Instructions, Adjusting Blower Limit Control Settings

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OPERATING INSTRUCTIONS

COAL FUEL

Egg size (1-3/16" or larger) bituminous coal for residential furnaces, or any of the specially packed fireplace coals can be used. Coal with a low ash content (2% to 6%) is recommended.

WOOD FUEL

Hardwood, 18" to 26" should be split and air dried (seasoned) for

6months.

LIGHTING

1.Open the draft controls to "HIGH" for maximum draft.

2.Open the feed door and place paper and kindling on the grate for starting the fire.

3.Light the fire and close the feed door.

4.Add wood or about 15 lbs. of coal (depending on which model) after fire is burning briskly.

Set draft control for desired temperature.

d.Shake grates vigorously 1/2" left to right to spill ashes into the ash pan. Do this at least once every 12 hours of operation. Empty ash pan regularly. Do not allow ashes to build-up to grate as grate will warp and burnout, and you might spill the ashes when removing the pan.

Dispose of hot ashes properly (See note 12 on page 4).

e.Rotation of the handle (5 o'clock to 7 o'clock) position will agitate coals and spill ashes into ash pan.

f.It is advisable for you to get familiar with the shaker grate operation before firing.

CAUTION

GASES THAT ARE DRIVEN BY FRESH COAL MUST BE BURNED OR THEY WILL ACCUMULATE AND EXPLODE. NEVER SMOTHER A FIRE WHEN ADDING FRESH COAL.

ADDING FUEL

When starting a fire, add small amounts of fuel instead of adding large quantities of fuel. This will give more complete combus- tion and less build-up of tars or soot in the chimney.

1.Set draft control to HIGH before opening feed door.

2.Wood fire

Add wood to a convenient level.

3.Coal Fire

a.Never smother the fire when adding coal (See Caution). Gas accumulation and a mild smoky explosion will occur. Add fresh kindling if the bed of coals has cooled.

b.Add up to 20 lbs. of coal per loading. Never add coal above the bottom of feed door opening.

c.Stir the coal and watch the fire. Be sure the new coal is burning briskly before you close the doors and turn the lower the drat control setting down.

CAUTION

DO NOT OPERATE WITH THE FEED AND/OR ASH DOOR OPEN. THIS FURNACE IS DESIGNED FOR THERMO- STATIC OPERATION. OPERATION WITH ANY OF THESE DOORS OPEN WILL OVERHEAT AND DAMAGE THE FURNACE.

CAUTION

NEVER USE GASOLINE, GASOLINE-TYPE LANTERN FUEL, KEROSENE, CHARCOAL LIGHTER FLUID, OR FLAMMABLE LIQUIDS TO START OR "FRESHEN UP" A FIRE IN THE FURNACE.

CAUTION

NEVER STORE FLAMMABLE LIQUIDS, ESPECIALLY GASOLINE, IN THE VICINITY OF THE FURNACE.

ADJUSTING BLOWER LIMIT CONTROL SETTINGS

The temperature in the plenum of the warm air furnace at which the blower turns on or turns off is controlled by the setting of the pointers in the blower limit control. These pointers may be adjusted through their entire range of settings to achieve the desired warm air output from the furnace. (See Fig. 15)

1.Move both pointers towards the right (counter clock- wise) - this increases the temperature setting at which the blower will turn on and off.

2.Move both pointers towards the left (clockwise) - this decreases the temperature setting at which the blower will turn on and off.

3.Move pointers away or apart from each other- this increases the time that the blower will run on each warm cycle.

BLOWER FAN

"OFF" POINTER

BLOWER FAN "ON" POINTER

BLOWER LIMIT

POINTER AND STOP

FIG. 15

•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•

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Contents Ussc Tools and Materials Needed CongratulationsSafety Rules for Safe Installation and Operation HOW the Furnace Functions Model 22AF Dimensions Locating the Furnace Masonry Chimney Chimney ConnectionAdjusting Barometric Draft Regulator Rules for Connector Pipe InstallationOn Next On Next Part B Contin Blower & Component Assembly FIG White Power Supply Model 22AF Wiring Diagram FIGInstallation Power Failure Instructions Drawings for Illustration Purposes only Alternative Parallel Installation Wiring Diagram Operating Instructions Adjusting Blower Limit Control SettingsChimney Maintenance Service HintsModel 22AF Parts KEY PARTNO. Description Model 22AF Parts ListAppendix Installation B Installation C Installation D Only Installation E Installation F Installation G Trouble Shooting Tips for Warm AIR Furnace Drawings for Illustration Purposes only Drawings for Illustration Purposes only Ranking Heating with WoodHOW to Order Repair Parts