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14
Factory-approved pellets are those
1/4” or 5/16” in diameter and not over 1” long. Longer or thicker pellets sometimes bridge the auger ights, which prevents
proper pellet feed. Burning wood in forms other than pellets is not permitted. It will violate the building codes for which the
stove has been approved and will void all warranties. The design incorporates automatic feed of the pellet fuel into the
re at a carefully prescribed rate. Any additional fuel introduced by hand will not increase heat output but may seriously
impair the stoves performance by generating considerable smoke. Do not burn wet pellets. The stove’s performance
depends heavily on the quality of your pellet fuel. Avoid pellet brands that display these characteristics:
a. Excess Fines – “Fines” is a term describing crushed pellets or loose material that looks like sawdust or sand. Pellets
can be screened before being placed in hopper to remove most nes.
b. Binders – Some pellets are produced with materials to hold the together, or “bind” them.
c. High ash content – Poor quality pellets will often create smoke and dirty glass. They will create a need for more
frequent maintenance. You will have to empty the burn pot plus vacuum the entire system more often. Poor quality
pellets could damage the auger. USSC cannot accept responsibility for damage due to poor quality pellets.
Remove burn pot, making sure it is clean and none of the air holes are plugged. Clean the rebox, and then reinstall
burn pot. Clean door glass if necessary (a dry cloth or paper towel is usually sufcient). Never use abrasive cleaners on
the glass or door. Check fuel in the hopper, and rell if necessary.
NOTE: The 5520 Hopper can hold up to 120 lbs. of pellets.
Never use a grate or other means of supporting the fuel. Use only the burn pot supplied with this heater.
Hopper lid must be closed in order for the unit to feed pellets. If it is the rst time you have started the unit, or anytime
the hopper has been emptied of pellets, it will be necessary to prime the auger. In order to prime the auger press and
hold the fuel feed button after starting the unit. Keep fuel feed button depressed until pellets begin to fall into the burn
pot, then release the fuel feed button and allow the unit to operate normally.
During the start up period:
1) DO NOT open the viewing door.
2) DO NOT open the damper more than 1/4”.
3) DO NOT add pellets to the burn pot by hand.
4) DO NOT use the Fuel Feed button (unless you are priming the auger after running out of pellets). A dangerous
condition could result.
NOTE: During the rst few res, your stove will emit an odor as the high temperature paint cures or becomes seasoned
to the metal. Maintaining smaller res will minimize this. Avoid placing items on stove top during this period because
paint could be affected.
a. Fill hopper and clean burn pot.
b. Press “On/Off” button. Make sure light is on.
c. The damper should be completely closed or open no more than 1/4” during start-up. This will vary depending on
your installation and elevation. Once re is established adjust for desired ame increasing the amount the damper
is open as the heat setting is increased. (See “DAMPER CONTROL”)
d. Adjust feed rate to desired setting by pressing “Heat Level Advance” button.
If re doesn’t start in 15 minutes, press “On/Off”, wait a few minutes, clear the burn pot, and start procedure again.
Operation
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