Clayton 1600EF, Installation & Operator'S Manual

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GENERAL FURNACE OPERATION
After installation of the furnace is complete, it is ready for operation. The Honeywell Limit Control, in conjunction
with a wall thermostat, operates the distribution blowers and the motorized draft on the front of the furnace. The
limit control is located on the rear of the furnace in the upper left corner and is accessible by removing the two
screws in the cover plate. DO NOT operate your furnace with this plate removed! The control can be adjusted
to your desired blower On/Off times. The factory settings are 100/150/200. The wall thermostat setting operates
the ON time of the motorized draft. If the temperature is below the setting on the wall thermostat, the motorized
draft will come open. (Recommended setting at 5 to 10 degrees higher than other heating thermostats.) The first
two set points on the limit control operates the distribution blower. When the furnace plenum reaches the second
set point on the limit control, the distribution blower will come on. If the temperature falls to the first set point, the
distribution blower will shut-off. The distribution blower is a three speed blower and can be manually adjusted by
means of the three position switch located behind the sliding access panel on the cold air return box. When the
furnace reaches the third set point on the limit control, the draft blower will shut-off. The draft blower will come
back on if the temperature falls below the setting on the wall thermostat.
TESTING
1. Check the motorized draft by turning the room thermostat up high enough so that the motorized draft
opens. Then lower the thermostat setting to ensure it closes off.
2. Use a sheet of newspaper to test your draft by placing it inside the furnace and lighting it.
STARTING A COAL FIRE
• Shut off FAD when fuel door is open
• Open all draft controls on your furnace. Pull the slide baffle forward.
• Place about 10-15 lb. of coal in on the shaker grates. It should come up to about half of the first firebrick
level.
• Place crumpled paper over the coal and crisscross a couple handfuls of dry kindling wood 3/4” in thickness
on top of paper.
• Ignite the paper and close loading door. Wait about 30 minutes until coal fire is established before adding
more coal. NOTE: NEVER load coal over the level of firebrick.
• Close by-pass damper and set all draft controls to your own needs. It may take 3 to 4 coal fires to determine
how your local coal and the Clayton Furnace reacts together. Adjusts drafts accordingly.
• When loading with a good bed of coals in the morning - Open by-pass damper.
1. In normal shaking, only rock the grates a small amount to sift ash through. Do not agitate the fire bed too
often. This practice will waste coal. If glowing coal is visible in the ash pan, you have shaken to much.
2. Remove all ashes every day from ash pit.
CAUTION: Ashes should be placed in a metal container with a tight fitting lid. The closed container of ashes
should be placed on a non-combustible floor or on the ground well away from all combustible materials pending
final disposal. If the ashes are disposed of by burial in soil or otherwise locally dispersed, they should be retained
in the closed container until all coals have thoroughly cooled.
3. With your poker, push hot burning embers to the rear of the unit and add green coal in front. NEVER load
over height of firebrick. This can result in damage to your furnace and home.
4. Close by-pass damper.
• Too much draft air will cause clinkering of coal and will waste heat up the chimney. Shut draft down to as
low a point as you can and still heat your home.
1. NOTE: Never stand in front of loading door when opening it. Stand to the side.
2. NEVER completely cover the live fire with fresh coal. Always leave a generous area of glowing coal at the
top of the fire and at the rear.
3. Always keep the ash pit clean.
• If the fire goes out or does not hold overnight, look for:
1. Poor draft.
2. Incorrect damper settings.
3. Improper firing methods for coal being used.
4. More combustion air needed.
5. Coal not sized to the furnace. We recommend 1” to 3” diameter pieces of coal.
6. Ashes, if allowed to accumulate in the ash pit, will not allow the passage of required air for combustion. Keep
ash pit clean.
7. This furnace is not to be used with an automatic stoker unless so certified.
Testing And Operating Procedures