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Hersteller: United States Stove Dateigröße: 3.03 mb Dateiname: Unterrichtssprache:

Should the timer expire before the preset operating temperature is achieved, simply reset the heater by pressing the “ON” button. Normal Operation If after 15 minutes the preset operating temperature of approx. 110 degrees is achieved, normal operation will continue. Operation will continue until either the heater’s control is to the “OFF” position, or the operating temperature falls below approx. 90 degrees. At such time the heater will default to the “Automatic Shut Down”. Igniter Starts immediately Will continue operation for a preset time, then shut-off SHUTDOWN SEQUENCE OF EVENTS Once the Heater has reached the normal operating temperature and switched to the “OFF” position, the unit will initiate a slow down, reducing the fuel rate until the heater’s “LOW LIMIT SAFETY” sensor tells the control board it is safe to shutdown. COMPONENT SHUTDOWN OPERATION END Draft Fan Unchanged operation until preset “OFF” temperature is achieved. Continues until the operating temperature falls below approx. 90 degrees. May take several hours. Agitator Rotates continuously until preset “OFF” temperature is achieved. Continues until the operating temperature falls below approx. 90 degrees. Auger Slows down to a reduced fuel setting until preset “OFF” temperature is achieved. The auger will continue at the reduced feed rates until the operating temperature falls below approx. 90 degrees. NOTE: Safety switches, HI limit and vacuum sensor, must be activated to continue proper operation. Room Fan Unchanged operation until preset “OFF” temperature is achieved. Will continue to operate until the heater cools down to below approx. 90 degrees. This may take several hours. Automatic Shutdown If the heater’s “HI LIMIT” sensor snaps open, this will cause an automatic shutdown. An error code will be displayed (Err1). NOTE: “HI LIMIT” errors are usually the result of operating at the highest heat setting for long periods of time, room fan failure or loose wire connection. It is rare that the HI LIMIT temperature is reached. However, should this error occur, let the heater cool down for an hour then restart. CAUTION: When performing any internal electrical maintenance • Moving parts inside of the cabinet may cause injury. Do not operate unit with panels removed or open. • HOT parts. Do not operate the unit with panel open. • Risk of electric shock. Disconnect power before servicing unit. • In the event of component failure, replace with the original factory equipment. 22 USSC ERROR CODES and DISPLAY INDICATORS ERROR CODES and DISPLAY INDICATORS Error Code Error Description Possible Causes Err1 The high limit temperature sensor has tripped. • Inadequate ventilation. • Room fan failure. • Exhaust Blockage. • Electrical Open in the over temperature switch or wiring. Err2 The low limit temperature sensor has tripped. • Hopper Empty. • Auger output failure or jam. • Poor flame or fuel quality caused fire to burn too slowly or go out. • Electrical Open in low temperature switch or wiring. • Fire was not well established before the PCB’s programmed time limit expired. Err3 The heater was unable to reach the Room Fan On temperature within the startup time. • Poor flame or fuel quality caused fire to burn too slowly or go out. • Auger output failure or jam Hopper empty on startup. Err4 The power failed while the heater was hot, and when power was restored, the fire was out. • Electrical Open in low temperature switch or wiring. • Power loss Err5 The Auger output fuse has blown. • Auger motor jammed or bad. Err6 The Agitator output fuse has blown. • Agitator motor jammed or bad. Err7 The Draft Fan (Exhaust Fan) output fuse has blown. • Draft Fan motor jammed or bad. Err8 The Room Fan output fuse has blown. • Room fan motor jammed or bad. Err9 Zero Crossing Input failed • AC supply frequency out of range. Err10 The Igniter output fuse has blown • Igniter output has shorted/blown or igniter overload. Display Indicators Several situations or events are indicated in normal operation by blinking display indicators or segments in the display: Flashing On Indicator: This means that the heater is in the “Start Up” awaiting for the ignition procedure to complete. Flashing Off Indicator: This indicates that the heater is in the “Shutdown” state waiting for the OFF button, or for a 15 minute period after the heater was turned off, or for the heater to cool down, or for the door to be closed. Flashing dash in Heat Range Display: This indicates that the heater is in the normal run mode and is ramping from the current heat range setting to the target heat range setting. Once the ramp is complete, the dash will stop flashing. For ramping from heat range 1 to 5, the default time is 12 minutes (with a 90 second ramp time). Flashing heat range value in “Heat Range” display: For example, if the display is showing “Hr-3” and the ‘3’ is blinking, this indicates that the heater thermostat input is open and not calling for heat. While this is happening, the actual hea...

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