Installation & Operations Manual SCF 050 FURNACE 208 SCF-Revolution Manual 1
TABLE OF CONTENTS General Information .................................................................................................................. 4 Installation Check List .............................................................................................................. 5 Furnace Layout Diagram ........................................................................................................... 6 Furnace Dimensions, Location & Clearances .............................................
Combustion Air Damper – Location and Adjustments............................................29-33 Thermostat Control & Pilot Settings............................................................................. 34 SCF-050 Maintenance ................................................................................................ 34 St. Croix Clinker Theory................................................................................ 34 Clinker/Ash Removal...................................................
Save This Installation & Operations Manual GENERAL INFORMATION SAFETY PRECAUTIONS SAFETY NOTICE: The furnace must be properly installed in order to prevent the possibility of a house fire! These installation instructions must be strictly observed! The Maintenance schedule must be followed as described in this manual. Failure to follow instructions may result in property damage, bodily injury or even death.
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. AND CANADA, MOBILE HOME APPROVED CHECK WITH LOCAL AUTHORITIES AND OBTAIN NEEDED PERMITS WE RECOMMEND INSTALLATION BY A QUALIFIED PROFESSIONAL. BEFORE STARTING THE FURNACE FOR THE FIRST TIME 1.
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”. This burn pot allows the clinker to be removed without loosing the fire in the pot. This eliminates the need of having to constantly re-light the furnace after removing the clinker.
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. Service Access. The front panel is removable to allow access to the ash pan and the firebox for regular maintenance. The Control Board is mounted on the left side. There are also 2 access panels on the left side.
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 – The remaining clearances shown above are required to allow access to components during service and maintenance.
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 TO ALL CLEARANCES INSTRUCTIONS OF THIS FURNACE. SPECIFIED IN THE INSTALLATION THIS FURNACE USES A POSITIVE PRESSURE VENTING SYSTEM. DO NOT INSTALL A FLUE DAMPER IN THE EXHAUST SYSTEM OF UNIT DO NOT CONNECT THIS FURNACE TO A CHIMNEY SYSTEM THAT IS CONNECTED TO ANOTHER APPLIANCE.
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; and 2) Single wall rigid or flexible stainless steel pipe. PL Vent and Single wall vent is available through manufacturers such as: Energy Vent LTD, James A. Ryder, Simpson DuraVent and Selkirk Metalbestos and is carried by many local pellet Furnace dealers.
TYPICAL PL VENT COMPONENTS RAIN CAP VERTICAL OR HORIZONTAL WALL THIMBLE CHIMNEY ADAPTER ADJUSTABLE LENGTH SINGLE TEE SINGLE REDUCTION PIPE w/TEE CAP TEE w/TEE CAP PIPE ADAPTER INCREASER 450 ELBOW SCF-Revolution Manual 11 SUPPORT BRACKET DOUBLE TEE w/TEE CAP 900 ELBOW
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. A clean out “tee” (PL Vent or “Quick-Connect Exhaust”) must be installed directly to the furnace and at the bottom of each vertical run of the exhaust system. These tees are to assist in periodically cleaning the pipe.
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. 1. Exhaust must terminate above combustion air inlet elevation. 2. Do not terminate vent in any enclosed or semi-enclosed area, (i.e.
b. With Outside Air Connected to the unit. In this manner the appliance is a Direct Vent Appliance (sealed Combustion System) as listed in NFPA 211-6. 3.3.3.
VENTING: TERMINATION CLEARANCE REQUIREMENTS Figure 5 THE EXHAUST TERMINATION LOCATION MUST BE AT LEAST 1’ (305 mm) 7’ (2.1 m) 1’ (305 mm) 3’ (915mm) 2’ (610 mm) ABOVE the ground level FROM a public walkway FROM The wall penetration point FROM a gas meter/regulator assembly FROM any adjacent combustibles such as: Adjacent buildings, fences, protruding parts of the structure, roof eaves or overhangs, plants, shrubs, etc.
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. A relining of the chimney with either PL vent or single wall stainless steel pipe may be necessary to bring the chimney into compliance. 2.
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). Be careful not to pinch or bend the outside air pipe with too small a radius which may e terminated flush with the outside wall but should be protected from wind and weather by a hood.
Connecting To Existing Duct Work Figure 8 The SCF-050 may be connected to the existing ductwork of a Gas, Oil or Electric / Heat Pump furnace. The duct work of the furnaces may not be hooked in series with each other. This means the Warm Supply Air of the SCF-050 may not be hooked the Cold Air Return of the existing furnace. See example in figure 8 above. The Cold Air return of the SCF-050 is connected to the Return Air Duct of the existing furnace.
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 standalone shop heater, the option is available to select the 600 CFM setting or the 800 CFM setting. The slower speed will produce higher air temperatures because the air moves slower through the heat exchange system, allowing it to become hotter.
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: 1. WARNING: DO NOT INSTALL IN A SLEEPING ROOM. 2.
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. Check any other local building codes or other codes that may apply. 8. Do no use components other than those specified for use with this unit. 9. Floor protection requirement must be followed precisely. 10.
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 INSTALLATION CHECK Proper installation is essential for safety, effective Operation, Warranty Coverage, Insurance requirements and to meet Local Building Codes. Installation Requirements are described in the first section of this manual.
APPROVED FUELS – Corn, Pellets, Wheat, Rye, Cherry Pits & Distiller’s Grain Pellets. Corn, Wheat, Rye, Distiller’s Grain must be 15% or less moisture content. The keys to satisfactory performance are: proper operation of the stove, diligent maintenance and burning only dry, clean, quality corn, wheat & rye. Grain dust must be screened prior to using. NOTE: Corn, Wheat, Rye & Distiller’s Grain with excessive grain dust must be screened, by sifting with the appropriate size mesh screening.
To burn Pellets, Cherry Pits & Distiller’s Grain Pellets detach the side shields by loosening the 2 screws holding the shield in place and lift off of the burnpot. Do not discard this part, but save it for future use in the event you switch back to burning corn, wheat or rye.
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. 2. Obtain final inspection and approval of installation from local building officials. 3. Have your dealer demonstrate all the operational and maintenance steps necessary for proper use of the furnace.
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. The Control Board also has Diagnostic Capabilities to help in diagnosing 3 areas in the furnace. These areas are: 1. High Temperature Limit. 2. Proof of Fire Sensor 3.
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 fuel into the burn pot on start up when needed. This is particularly helpful in priming the Auger Tube when it is empty. 4. The Draft Trim button (4) allows for adjusting the Exhaust fan voltage on Heat Level 1 only.
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. WARNING: The auger can start at any time while the Furnace is running CAUTION: The Coal Rake must be pulled out and the Slide Out Bottom pushed in to Operate the Furnace.
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 fuel on the #1 setting. (See section on Diagnostic Features on page27) If the board senses P.O.F. then the Furnace has started successfully. d. If the board fails to sense P.O.F. it will repeat the last step and continue feeding fuel on the #1 setting for 5 minutes. e. The board will check for P.O.F. again.
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” and the Auger will quit feeding fuel. Once the Furnace completes the safety shutdown, the #3 LED will start blinking. (See Figure 13 on Page 24) 2. The High Limit switch.
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. The switch is “Normally Open” and closes the circuit at 110 degrees. The Furnace will shut down if temperatures above 110 degrees F are not sensed during start up or if the temperature drops below 110 degrees during normal operation. 3.
When burning corn, wheat, rye & Distiller’s Grain pellets the burn pot should be “BALANCED”. This means the fuel that is being augered into the burn pot rapidly turns into glowing coals. If you see a lot of unburned fuel in the pot, an adjustment may be needed. In an unbalanced pot the corn, wheat or rye will quickly stick together and prevent the proper flow of combustion air. The pot will overload and the fire will go out.
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. In dealing with technical support, the terminology listed in figure 16 may be used to clarify where your damper needs to be set. Figure 16 Damper Adjustment Procedure.
Terminology used when burning Grain (corn, wheat, rye & Distiller’s Grain) 1. Balanced burn pot. This means the 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, wheat or rye to start burning and the burn pot to become balanced. Corn, wheat or rye will tend to stick together in a clump in the burn pot if the fuel feeds in faster than it’s burning. 3. Overloaded burn pot.
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” isn’t too long. Remember: Only turn the setscrew one 1/2 turn clockwise to open the damper. Wait 15 minutes to see if the burn pot becomes balanced. Repeat this step as many times as needed until the burn pot becomes balanced.
Thermostat Control & Pilot Settings The Furnace may be controlled with a thermostat to help maintain a more constant temperature. A Multi-Fuel furnace, such as the SCF 050, will be a little slower in reacting to a thermostat than the typical Gas, Electric or Oil fired furnace. With this in mind we have incorporated 3 Pilot settings on the control board (See Point 5 on Page 25). This will allow the heat output during the pilot stage to be matched to the size of the home.
removal of the clinker. The time it takes the pot to fill up with ash depends on the quality of the pellets and on the quantity of pellets burned. The interval of dumping the ash is directly related to the rate of burn. A Furnace running on a thermostat cycling at a moderate rate will generally last approximately 24 hours. However if the Furnace is running continuously on the highest setting the Ash will need dumping every 10 to 12 hours.
CAUTION: THE DOOR AND FRONT PART OF THE FURNACE WILL BE HOT. DO NOT TOUCH ANY PART OF THE FURNACE THAT IS HOT! 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, wheat or rye or pellets used. Check the furnace frequently at first to establish a Schedule for cleaning the burnpot.
1. The coal Rake. The first step is to push the coal rake in and shave the coals off the top of the clinker. Once this is done open the door and add a ¼ cup of pellets on top of the coals (See figure 18). To push in the Coal rake, use the Rod Handle tool shown in figure 20 on page 39. Figure 18 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.
4. The control board. Set the heat setting to #1 for a few seconds and return to the setting it was on. This initiates the time delay for dropping the clinker. 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 17 on page 36 for normal operation. The time delay in the program will allow a smooth transition back to where the Furnace was burning before the clinker was dropped. 6.
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 fuel being used. Carefully check to make sure the ash pan door is tightly closed after each opening. 2. Burnpot and Slide-Out Bottom. Clean burn grate holes whenever needed.
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 21 Frequency of cleaning depends on the amount of fuel being burnt and the quality of the Corn, wheat, rye or pellets. Failure to clean the ash traps will cause the Furnace to become plugged with Fly Ash. 4. Heat Exchange Baffle. Remove the baffle and clean the ashes that accumulate on a regular basis.
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. When putting the baffle back in the Furnace, make sure the screws are in the keyhole slots and the back of the baffle is lifted up over the inner back to keep the Baffle locked in place. Figure 22 5. Exhaust System. Periodic cleaning of the exhaust system is required.
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. 1. Spring Shutdown. After the last burn in the spring, cool the Furnace. Remove all fuel from the hopper and the auger.
4. The exhaust fan should be removed 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. There are 2 oil ports on the motor. Fall Startup. Prior to lighting the first fire check the outside area around the exhaust and air intake systems for obstructions. Try all controls to see that they are working prior to lighting a fire. SAFE OPERATION. 1.
Wiring Schematic Figure 24 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.
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 25 1. 2. 3. 4. 5. Fan Limit Control Convection Blower Combustion Blower Proof of Fire Switch Vacuum Switch 6. 7. 8. 9. 10.
Additional Canadian Installation requirements. 1. 2. 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. It is recommended to provide opening equal to 120 Square inches for Return Air to the Furnace room. Outside Combustion Air may be needed if: a.
Additional Canadian Requirements for Supplementary (Add-On) Furnaces. (See label on the inside front panel of the furnace for additional information) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 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. OPERATE THE (GAS, OIL OR ELECTRIC) FURNACE PERIODICALLY TO ENSURE THAT IT WILL OPERATE SATISFACTORILY WHEN NEEDED.
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 1. When first starting the Furnace remember the auger tube is empty, which will delay feeding fuel to the burn pot. This will in some cases prevent the Furnace from starting. Solution: 2.
Solution: 5. If the fire is out, re-light the Furnace. If the fire is still burning make sure all doors are securely latched and hold down the On/Off button (approximately 5 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 autofeed takes over (Auto feed will start 5 minutes after the Furnace has been restarted). My Furnace isn’t burning and the number 3 LED light is blinking.
8. 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. This will minimize the amount of smoke that can spill into the room. I turned the Furnace on with the On/Off switch and nothing happens.
a. 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. b. Pressing the Feed Trim button once will turn the #1 and #4 LED lights on at the same time. This reduces the On Time to 2.0 seconds. Less Fuel means more adjusting. See the figure to the right for details. Figure 26 c. Pressing the Feed Trim button again will turn on the #1 and #5 light at the same time This reduces the On Time to 1.5 seconds.
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, wheat or rye greatly influences how it burns. Burning Pellets requires adjustments to the low burn to prevent Creosote from forming. Following is a description of the function of the Fan Trim button. The Draft Trim button will adjust the combustion fan voltages on the #1 pilot setting. There are 2 adjustments that can be made.
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.
Notes: After the break in period, please note any adjustments that were made to the Feed Trim and Draft Trim on the control board in the area below. In the event of a power failure or if the units gets unplugged the trim settings will be lost.
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.
