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St. Croix SCF 050 Installation & Operation Manual

Corn furnace
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Sold and serviced by www.PelletKing.com - 603.424.1183
Installation & Operations Manual
SCF 050
CORN FURNACE
805
SCF-050 Manual
1

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Summary of Contents for St. Croix SCF 050

  • Page 1 Sold and serviced by www.PelletKing.com - 603.424.1183 Installation & Operations Manual SCF 050 CORN FURNACE SCF-050 Manual...

  • Page 2: Table Of Contents

    Sold and serviced by www.PelletKing.com - 603.424.1183 TABLE OF CONTENTS General Information ...................... 4 Installation Check List ....................5 Furnace Layout Diagram ....................6 Furnace Dimensions, Location & Clearances ............7,8 Exhaust Venting......................10 Venting - Approved Materials ............... 10 Venting-Typical PL Vent Components ............
  • Page 3 Sold and serviced by www.PelletKing.com - 603.424.1183 Combustion Air Damper – Location and Adjustments..........30-34 Thermostat Control & Pilot Settings................35 SCF-050 Maintenance ....................35 St. Croix Clinker Theory................35 Clinker/Ash Removal..................36 Daily Maintenance ....................37-39 Periodic Maintenance....................40-42 Yearly Maintenance ....................43, 44 Safe Operation ......................

  • Page 4: General Information

    Please refer to label for pertinent information. DISCLAIMER OF WARRANTY Since Even Temp Company has no control over the installation of the furnace, Even Temp Company grants no warranty, implied or stated, for the installation of the furnace and assumes no responsibility for any special, incidental or consequential damages.

  • Page 5: Installation Check List

    Sold and serviced by www.PelletKing.com - 603.424.1183 BEFORE INSTALLATION THOROUGHLY READ AND UNDERSTAND THIS MANUAL SAFETY NOTICE PLEASE READ THE ENTIRE MANUAL BEFORE INSTALLING AND USING YOUR NEW FURNACE. FAILURE TO FOLLOW INSTRUCTIONS MAY RESULT IN POPERTY DAMAGE, BODILY INJURY, OR EVEN DEATH. INSTALLATION CHECK LIST FOR USE IN THE U.S.

  • Page 6: Furnace Layout Diagram

    Sold and serviced by www.PelletKing.com - 603.424.1183 SCF 050 Furnace Layout Figure 1 The SCF-050 has a large Heat Exchange system, allowing for more heat to be exchanged. The burn system used in the furnace is the St. Croix Patent Pending “Clinker Removal System”.

  • Page 7: Furnace Dimensions

    Sold and serviced by www.PelletKing.com - 603.424.1183 Furnace Dimensions Figure 2 Furnace location When finding a location to install the furnace, several things need to be kept in mind. Consider the following things: Service Access, Venting, Return air Duct, Supply air Duct and Electrical.
  • Page 8 Sold and serviced by www.PelletKing.com - 603.424.1183 Clearances & Access for Service & Maintenance Figure 3 FLOOR PROTECTION - The furnace should be installed on a non-combustible surface extending 16” in front of the unit. LEFT SIDE – Minimum clearance to combustibles on the right side of the furnace is 2” ACCESS FOR SERVICE AND MAINTENANCE –...
  • Page 9 Sold and serviced by www.PelletKing.com - 603.424.1183 Caution INSTALLATION IS TO BE PERFORMED BY A QUALIFIED INSTALLER OR DEALER. ADHERE TO ALL CLEARANCES SPECIFIED BY THE MANUFACTURER OF THE VENTING SYSTEM USED. ADHERE CLEARANCES SPECIFIED INSTALLATION INSTRUCTIONS OF THIS FURNACE. THIS FURNACE USES A POSITIVE PRESSURE VENTING SYSTEM.

  • Page 10: Venting: Approved Materials

    Sold and serviced by www.PelletKing.com - 603.424.1183 VENTING: APPROVED MATERIALS The Furnace requires a venting system approved for pellet Furnaces by a certified testing lab. Approved pellet Furnace venting materials are: 1) PL vent, a double wall vent with a stainless steel liner;...
  • Page 11 Sold and serviced by www.PelletKing.com - 603.424.1183 TYPICAL PL VENT COMPONENTS RAIN CAP VERTICAL OR WALL THIMBLE CHIMNEY SUPPORT BRACKET HORIZONTAL ADAPTER ADJUSTABLE LENGTH SINGLE TEE SINGLE REDUCTION DOUBLE TEE PIPE w/TEE CAP TEE w/TEE CAP w/TEE CAP PIPE ADAPTER INCREASER ELBOW ELBOW...

  • Page 12: Venting: Determining Materials

    Sold and serviced by www.PelletKing.com - 603.424.1183 VENTING: DETERMINING MATERIALS TYPE OF MATERIALS: 1. PL Vent must be used. 2. Exception: Single wall stainless steel may be used inside an existing chimney. (No clearances to combustibles are needed on single wall stainless steel adaptors, rigid or flex pipe installed within a chimney.) 3.

  • Page 13: Venting: Termination Requirements

    Sold and serviced by www.PelletKing.com - 603.424.1183 VENTING: TERMINATION REQUIREMENTS In determining optimum vent termination, carefully evaluate external conditions especially when venting directly through a wall. Since you must deal with odors, gases, and fly ash, consider aesthetics, prevailing winds, distances from air inlets and combustibles, location of adjacent structures and any code requirements.

  • Page 14: Venting: Termination Clearance Requirements

    Sold and serviced by www.PelletKing.com - 603.424.1183 VENTING: TERMINATION CLEARANCE REQUIREMENTS Figure 5 THE EXHAUST TERMINATION LOCATION MUST BE AT LEAST 1’ (305 mm) ABOVE the ground level 7’ (2.1 m) FROM a public walkway 1’(305 mm) FROM The wall penetration point 2’...

  • Page 15: Venting Into An Existing Chimney

    Sold and serviced by www.PelletKing.com - 603.424.1183 Venting into an Existing Chimney Figure 6 The Furnace may be connected to an existing Class A chimney or a masonry chimney which meets the minimum requirements of NFPA 211. 1. If the Furnace’s exhaust is connected to a masonry chimney, the masonry chimney must be free of cracks that could leak exhaust gases or fly ash.

  • Page 16: Combustion Air

    Sold and serviced by www.PelletKing.com - 603.424.1183 COMBUSTION AIR 1. Under certain conditions it is recommended that the Furnace be connected to an outside source of combustion air to improve Furnace performance. Flexible metal hose, such as ClevFlex, or rigid metal pipe, (conduit), must be connected around (NOT INSIDE) the combustion air inlet tube (Figure 11A).

  • Page 17: Connecting To Existing Duct Work

    Add On furnace check the Static pressures in the ductwork to make sure they do not exceed the limits on the existing Central furnace or of the SCF 050. Running both furnaces at the same time should not cause any nuisance tripping of the High Limits in either unit.

  • Page 18: Fan Limit Control

    Sold and serviced by www.PelletKing.com - 603.424.1183 Blower Specs The Blower is a 2-Speed blower. (600 – 800 CFM) When connecting this unit to a duct system, the high speed should be used. If the Furnace is to be used as a stand- alone shop heater, the option is available to select the 600 CFM setting or the 800 CFM setting.

  • Page 19: Mobile Home Installation

    Sold and serviced by www.PelletKing.com - 603.424.1183 Mobile Home Installation Unit must be installed in accordance with the: Manufactured Home and Safety Standard (HUD), CFR 3280, Part 24 The Furnace has been tested and listed for mobile home installations. In addition to all previously detailed requirements, mobile home installations must observe the following: WARNING: DO NOT INSTALL IN A SLEEPING ROOM.

  • Page 20: Thermostat Hook-Up

    Sold and serviced by www.PelletKing.com - 603.424.1183 4. Permanently bolt the Furnace to the floor. 5. Electrically ground the Furnace and pedestal to the metal chassis of the home. Use a number eight, (8) gauge or larger copper wire. 6. Maintain an effective vapor barrier at location where PL vent exits the structure. 7.

  • Page 21: Scf-050 Operation

    Sold and serviced by www.PelletKing.com - 603.424.1183 SCF-050 OPERATION CAUTION: Operate this unit only with the fuel hopper lid closed. Failure to do so may result in emission of products of combustion from the hopper under certain conditions. Maintain hopper seal in good condition This unit requires 120-volt AC power to operate.
  • Page 22 Sold and serviced by www.PelletKing.com - 603.424.1183 SHELLED CORN SATISFACTORY PERFORMANCE: Shelled corn must be 15% or less moisture content. The keys to satisfactory performance are: proper operation of the Furnace, diligent maintenance and burning only dry, clean, quality corn. Corn dust must be screened prior to using. NOTE: Corn with excessive grain dust must be screened, by sifting with 3/16"...
  • Page 23 Sold and serviced by www.PelletKing.com - 603.424.1183 The Furnace is not warranted against damage caused by using poor pellets, incorrect operation, improper maintenance or incorrect installation. Figure 12 To burn Pellets, detach the side shields by removing the 2 screws holding the shield in place. Do not discard this part, but save it for future use in the event you switch back to burning corn.
  • Page 24 For information on adjusting the Cycle Time see point 13 on page 53. If you have difficulty adjusting the Furnace, contact your dealer or the Technical Support Department for St. Croix at Even Temp Inc. SCF-050 Manual...
  • Page 25 Sold and serviced by www.PelletKing.com - 603.424.1183 OPERATING INSTRUCTIONS A different type of heater. The SCF-050 is a furnace. FOLLOW THESE OPERATING INSTRUCTIONS EXACTLY AS STATED TO ENSURE SAFE AND RELIABLE OPERATION. 1. Carefully read this “Operation and Maintenance” manual in its entirety BEFORE lighting your Furnace for the first time.

  • Page 26: Control Board Features

    Sold and serviced by www.PelletKing.com - 603.424.1183 Control Board Features The Control Board controls all functions of the furnace by monitoring sensors that are in the system. These sensors serve 2 purposes. a. General Operation of the Furnace. b. Safety Features, to shut the unit down in the event the sensors detect a problem in the unit.
  • Page 27 Sold and serviced by www.PelletKing.com - 603.424.1183 2. The On/Off button (2) turns the Furnace On and Off. It will also reset the board after the board has sensed a problem and is flashing a Diagnostic code. 3. The auger button (3) will allow the customer to manually auger corn into the burn pot on start up when needed.

  • Page 28: Lighting Your Furnace

    Sold and serviced by www.PelletKing.com - 603.424.1183 WARNING: - Risk of Fire. -Do not operate with the Firebox door or Ash Removal doors open -Do not store Fuel or other Combustible material within marked Installation Clearances. -Inspect and Clean Flues and Chimneys regularly. Danger: Risk Of Fire or Explosion -Do not burn Garbage, Gasoline, Drain Oil or other Flammable Liquids.
  • Page 29 Sold and serviced by www.PelletKing.com - 603.424.1183 b. When the board senses the Vacuum switch the exhaust fan speed drops to the #1 setting and runs for 5 minutes. c. After 5 minutes the board checks for “Proof of Fire” and starts feeding corn or pellets on the #1 setting.

  • Page 30: Safety Features

    Sold and serviced by www.PelletKing.com - 603.424.1183 The Diagnostic Lights flash as follows: 1. The Proof of Fire switch. This switch will sense the temperature of the Exhaust rising during start up. If the Exhaust temperature does not reach 110 degrees F, or if during use the temperature drops below 110 degrees F, the Furnace will go into “Internal Alarm”...
  • Page 31 Sold and serviced by www.PelletKing.com - 603.424.1183 the Furnace is put back in service, (Defective Room Fan, dirty Room Fan, dirty Return Air Filter, defective Fan Limit Control or possibly a bad Control Board) 2. Proof of Fire switch also called the P.O.F. This senses the temperature rise in the exhaust system.
  • Page 32 Sold and serviced by www.PelletKing.com - 603.424.1183 When burning corn the burn pot should be “BALANCED”. This means the corn that is being augered into the burn pot rapidly turns into glowing coals. If you see a lot of unburned corn in the pot, an adjustment may be needed. In an unbalanced pot the corn will quickly stick together and prevent the proper flow of combustion air.
  • Page 33 Sold and serviced by www.PelletKing.com - 603.424.1183 If you experience problems adjusting the Furnace during the Break-In Period, contact your dealer. The figure below may be used to gage the approximate damper setting when making an adjustment. Some chimney systems will fall outside the norm, for example, a chimney with excessive draft or one with a long horizontal run.
  • Page 34 Sold and serviced by www.PelletKing.com - 603.424.1183 Terminology used when burning Corn 1. Balanced burn pot. This means the corn rapidly turns into red-hot coals once it is in the burn pot. 2. Lag time. This is the time it takes for the corn to start burning and the burn pot to become balanced.
  • Page 35 Sold and serviced by www.PelletKing.com - 603.424.1183 e. Advance the heat setting to #5 and let the Furnace burn at this setting for ½ an hour. Check the burn pot to see if it is balanced. A small damper adjustment might need to be made at this time to make sure the “Lag time”...

  • Page 36: Thermostat Control & Pilot Settings

    Sold and serviced by www.PelletKing.com - 603.424.1183 Thermostat Control & Pilot Settings The Furnace may be controlled with a thermostat to help maintain a more constant temperature. A Corn or Pellet furnace will be a little slower in reacting to a thermostat than the typical Gas, Electric or Oil fired furnace.

  • Page 37: Clinker/Ash Removal

    Sold and serviced by www.PelletKing.com - 603.424.1183 the Furnace is running continuously on the highest setting the Ash will need dumping every 10 to 12 hours. It is the responsibility of the Owner/User of the furnace to determine the frequency of dumping the Ash, based on the rate of burn and the quality of pellets (ash content).

  • Page 38: Daily Maintenance

    Sold and serviced by www.PelletKing.com - 603.424.1183 Daily Maintenance Example of Schedule for dropping Clinkers and Ash from burn pot: This may be required more than once a day, depending on the burn rate of the Furnace and the quality of Corn/Pellets used.
  • Page 39 Sold and serviced by www.PelletKing.com - 603.424.1183 Figure 19 2. The ash pan. Make sure the Ashpan is not too full to receive a clinker. If the Ashpan is too full, the clinker may not drop all the way through. This will not allow the pot bottom to be closed.
  • Page 40 Sold and serviced by www.PelletKing.com - 603.424.1183 5. Dropping the coals back into the burn pot. At this time pull the coal rake back out of the burn pot to drop the coals in the pot. See position of Coal Rake & Pot Bottom in figure 18 on page 37 for normal operation.

  • Page 41: Periodic Maintenance

    Sold and serviced by www.PelletKing.com - 603.424.1183 Periodic Maintenance CAUTION: Periodic maintenance should only be done while the Furnace is shut off and cold. 1. Ashpan. Empty the ash pan when it appears full (approximately once a week). The frequency of cleaning the ash pan will depend on the quality and amount of Corn/Pellets being used.
  • Page 42 Sold and serviced by www.PelletKing.com - 603.424.1183 3. Clean-Out Ports. The Furnace has 3 Exhaust Cleanout Ports located in the LEFT AND RIGHT lower corners of the firebox and behind the Ashpan. Remove covers and clean regularly. Figure 22 Frequency of cleaning depends on the amount of fuel being burnt and the quality of the Corn/Pellets.
  • Page 43 Sold and serviced by www.PelletKing.com - 603.424.1183 Baffle Removal To remove the baffle, lift the back of the baffle up to clear the inner back of the Furnace and slide towards the front of the Furnace. The baffle will slide out of the keyhole slots and drop down.

  • Page 44: Yearly Maintenance

    Sold and serviced by www.PelletKing.com - 603.424.1183 Many dealers offer a Service Contract that will cover Yearly Maintenance. Contact your St. Croix Dealer for assistance in maintaining your Furnace in top condition. Yearly Maintenance Yearly maintenance is designed to assure safe operation, prolong the life of the Furnace and help preserve its aesthetic appeal.

  • Page 45: Safe Operation

    Sold and serviced by www.PelletKing.com - 603.424.1183 4. The exhaust fan should be removed (may require a new gasket) and cleaned with compressed air annually. Call dealer for this service. Annual oiling of the motors is not needed. 5. The Convection Blower should be removed and cleaned with compressed air annually.

  • Page 46: Wiring Schematic

    Sold and serviced by www.PelletKing.com - 603.424.1183 Wiring Schematic Figure 25 The Electrical Rating of this furnace is: 120 Volt, 60 Hz, 4 AMP. The minimum recommended circuit is 15 Amp. A dedicated circuit for the furnace is recommended. SCF-050 Manual...

  • Page 47: Electrical Layout

    Sold and serviced by www.PelletKing.com - 603.424.1183 CAUTION: The electrical components of the Furnace are not owner serviceable. Call your dealer for proper diagnosis of electrical problems and service to those components. Electrical Layout Figure 26 Fan Limit Control Control Board Convection Blower Thermostat Wiring Terminal Combustion Blower...
  • Page 48 Sold and serviced by www.PelletKing.com - 603.424.1183 Additional Canadian Installation requirements. The fans of this Furnace may cause a negative pressure area in the room where this Furnace is installed. If the Furnace is not connected to a Return Air duct system in the house, provision should be made to provide make-up air to the unit.

  • Page 49: Installation

    Sold and serviced by www.PelletKing.com - 603.424.1183 Additional Canadian Requirements for Supplementary (Add-On) Furnaces. (See label on the inside front panel of the furnace for additional information) DO NOT USE DUCT ELBOWS HAVING AN INSIDE RADIUS OF LESS THAN 6“(150mm) ON THE FURNACES. DO NOT CONNECT DUCTWORKSO THAT A REVERSE FLOW IS POSSIBLE.
  • Page 50 Sold and serviced by www.PelletKing.com - 603.424.1183 TROUBLESHOOTING & FRQUENTLY ASKED QUESTIONS The Furnace is very trouble free in operation when properly maintained and quality pellets are used. When the Furnace fails to operate properly, troubleshooting by the operator of the Furnace is limited. Please read the following guide for answers to frequently asked questions When first starting the Furnace remember the auger tube is empty, which will delay feeding fuel to the burn pot.

  • Page 51: Operation

    Sold and serviced by www.PelletKing.com - 603.424.1183 seconds) until Furnace starts up again. This will re-start the Furnace in the start-up program. Occasionally use the auger button to manually feed fuel until the auto- feed takes over (Auto feed will start 5 minutes after the Furnace has been restarted).
  • Page 52 Sold and serviced by www.PelletKing.com - 603.424.1183 Cause: The Furnace did not establish a vacuum and shut down. With the fuel in the pot burning, the smoke finds the path of least resistance and leaks out into the house. (See Installation Manual. Minimum vertical height needed, to establish some natural draft and prevent smoke spillage) Solution: Pull the Slide-Out Bottom out and drop the fuel into the ash pan.
  • Page 53 Sold and serviced by www.PelletKing.com - 603.424.1183 The default Pilot setting has an On Time of 2.5 seconds. The #1 LED light indicates the default pilot setting. This setting requires little fine-tuning. Pressing the Feed Trim button once will turn the #1 and #4 LED lights on at the same time.
  • Page 54 Sold and serviced by www.PelletKing.com - 603.424.1183 12. How do I adjust the draft for the Pilot settings (#1 setting)? Not all fuel burns at the same rate. The moisture content of corn greatly influences how it burns. Burning Pellets requires adjustments to the low burn to prevent Creosote from forming.

  • Page 55: Warranty

    SCF-050 WARRANTY The Furnace manufactured by Even Temp, Inc. is warranted for five (5) years, to the original owner, against defects and workmanship on all steel parts (excluding the burn grate) and two (2) year on electrical components from the date of sale to the original owner. There specifically is no warranty on the paint, glass, burn grate and all gaskets.
  • Page 56 Feed Trim: Circle one (See point 5 on page 24) Default Pilot Medium Pilot Low Pilot Serial Number: Date of Purchase: Dealer Information: Even Temp, Inc. P.O. Box 127 Waco, NE 68460 PHONE: 402-728-5255 FAX: 402-728-5379 EMAIL: SUPPORT@EVENTEMPINC.COM WEB ADDRESS: www.eventempinc.com...

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