St. Croix Prescott Series, Installation & Operation Manual

Page 1: ...uctions 515 Please read this entire manual before installation and use of this pellet fuel burning room heater Failure to follow these instructions could result in property damage bodily injury or even death Contact local building or fire officials about restrictions and installation inspection requirements in your area ...

Page 2: ...Venting Determining Materials 13 Venting Termination Requirements 14 15 Venting Termination Clearance Requirements 16 Venting Installations 17 18 Floor Protection 19 Minimum Clearances 20 21 Outside Combustion Air 22 Mobile Home Installation 23 Prescott Series Operation 24 Preventing Chimney Fires 24 Prescott Series Approved Fuels 24 Installation Check 25 26 Control Board Features 26 27 Pre Lighti...

Page 3: ...Safety Features 34 35 Prescott Series Maintenance 35 Versa Grate System 36 Daily Maintenance Versa Grate System 37 38 Periodic Maintenance 38 40 Yearly Maintenance 40 41 Safe Operation 41 Wiring Schematic 42 Troubleshooting Frequently Asked Questions 43 46 Prescott Series Parts Breakdown 47 49 Warranty 50 Prescott Series Info Notes 51 Even Temp Inc P O Box 127 Waco NE 68460 EMAIL info eventempinc ...

Page 4: ...remium pellets This stove is not intended as the sole source of heat EMISSIONS TESTING U S ENVIRONMENTAL PROTECTION AGENCY Certified to comply with 2020 particulate emission standards using pellet fuel Certified to the 2020 Phase of ASTM E2779 2010 Heat Output 8033 BTU hr 29861 BTU hr Efficiency 70 1 using the higher Heat Value of the Fuel Emission Rate 538 gr h SAFETY TESTING The Prescott EXL and...

Page 5: ...that condensation is detrimental to exhaust systems Install the Stove with a minimum of the vent system exposed to the cold temperatures outside the envelope of the house BATTERY BACKUP St Croix does not offer battery backups They are available online if you decide to use one Battery backup systems are useful if the Stove is installed using horizontal venting only This prevents any smoke from ente...

Page 6: ...tilating the room until the odors disappear is recommended 7 The Stove will become HOT while in operation Keep clothing and furniture away from all hot surfaces 8 To avoid the possibility of smoke and or sparks entering the room always keep firebox and ash pan doors closed whenever the Stove is operating Smoke detectors installed in the same general area as the Stove may be activated if the Stove ...

Page 7: ...d in the Prescott Auburn Series These systems are interchangeable in the stove body This Manual covers the Prescott EXP and Prescott EXL which uses the Versa Grate System The Versa Grate System A Fully Automatic System that offers Self Ignition This system is approved for PFI Premium Pellets only See Figure 2 on the next page ...

Page 8: ...Prescott Series Installation and Operation Manual Page 8 Figure 2 Versa Grate System Approved with PFI Premium Pellets only ...

Page 9: ... Page 9 PRESCOTT EXL DIMENSIONS Figure 3a REAR VIEW OF PRESCOTT EXL A Width of stove D Center of stove to center of intake tube B Height of stove E Center of stove to center of exhaust C Center of intake tube from floor F Center of exhaust from floor ...

Page 10: ...ve C Center of Air Intake from Base of Stove G Front of Stove to Back of Stove D Center of Stove to Center of Air Intake H Front of Stove to end of Exhaust Pipe Approved Installations The Prescott Series is approved for CONVENTIONAL and MOBILE HOME installations as a FREESTANDING stove The stove may also be installed on the Hearth in front of a Fireplace and vented through the chimney of the firep...

Page 11: ...ngle wall vent adaptors must be stainless steel NOTE TYPE B GAS VENT MUST NOT BE USED IN THE INSTALLATION OF THIS PELLET STOVE Venting size Guidelines Type of Installation Size A Less than 10 horizontal 3 Acceptable B 10 to 12 horizontal 3 or 4 Acceptable C Over 12 horizontal 4 Required Horizontal installation over 12 is NOT RECOMMENDED D Less than 15 vertical 3 Acceptable E Over 15 vertical 4 Req...

Page 12: ... Page 12 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 450 ELBOW 900 ELBOW ...

Page 13: ... QUANTITY OF MATERIALS 1 It is recommended that the vent system be installed with a minimum of three feet 3 of vertical rise above the exhaust port on the back of the stove FAILURE TO PROVIDE THE NATURAL DRAFT THAT RESULTS FROM A VERTICAL RISE MAY RESULT IN SMOKE BEING RELEASED INTO THE HOUSE WHEN ELECTRICITY TO THE UNIT IS INTERRUPTED WHILE BURNING OR SMOLDERING FUEL REMAINS IN THE BURN GRATE See...

Page 14: ...mi enclosed area i e Carports garage attic crawl space etc or any location that can build up a concentration of fumes 3 Vent surfaces can get hot enough to cause burns if touched by children Non combustible shielding or guards may be required The type of installation must first be considered before determining the exact location of the venting termination in relation ship to doors window cavities ...

Page 15: ... obtained from the outside atmosphere and all flue gases are discharged to the outside atmosphere Special Venting Arrangements are listed in NFPA 211 31 10 7 1 2 The Vent Terminal of a Direct Vent Appliance with an input of 10000 BTU Hr or less shall be located at least 6 from any opening into a building and such an appliance with an input of over 10000 BTU Hr but not over 50000 BTU Hr shall not b...

Page 16: ...NATION 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 3 915mm FROM a gas meter regulator assembly 2 610 mm FROM any adjacent combustibles such as Adjacent buildings fences protruding parts of the structure roof eaves or overhangs plants shrubs etc ...

Page 17: ...ey chase cap that reduces the outlet of the chimney to the size of the liner is required Extend the exhaust vent above the chimney chase cap and finish it off with a rain cap A single wall liner may need to be insulated to maintain adequate exhaust temperatures in the vent system Note Outside Chimneys frequently are difficult to keep warm if in doubt insulate the liner Figure 7 Figure 8 Venting in...

Page 18: ...ipe Optional Figure 9 Venting to the Top of Chimney When installing as a hearth mount stove into a fireplace the unit must either be relined terminating above the chimney chase top or positively connected to the existing chimney system using a block off plate C An approved flex liner or PL vent must be used A chimney system with known drafting problems may require a liner which may also need to be...

Page 19: ...combustible hearth of a fireplace The Hearth Non Combustible pad must extend a minimum of 6 152 mm in Front of Unit and beyond each side of the Fuel Loading and Ash Removal Opening s Optional Spark Arrestor Pad provided with unit may only be used on a Solid Surface Floor such as Wood Flooring Laminate Flooring or Linoleum Do not use on Carpet Figure 10 Floor protection Top View ...

Page 20: ...ack of stove 4 11 Corner of stove 4 7 8 Vent pipe Per Manufacturer s Instructions 13 Stove to mantel 12 10 Floor protection Front from faceplate 6 10 Floor protection Sides back of stove 0 14 Alcove Vertical to Combustibles 16 15 Alcove Sides 4 15 Alcove Back 4 Figure 11 Top View Figure 12 Top View Clearances corners of stove Clearances Sides and Back ...

Page 21: ...lcove Installation Top View Although 4 is the minimum clearance to the sides of the stove this is not recommended due to the need for access into the inside of the stove for the maintenance as spelled out in the Operations Manual Please read the section covering the Daily Maintenance Periodic Maintenance and Yearly Maintenance in the Operations Manual ...

Page 22: ...drawn from a semi enclosed attic or crawl space or any semi enclosed space Take care not to draw cold air past water pipes that may freeze 3 Increase the outside air pipe diameter to 3 for runs over ten 10 feet and elevation over 4 000 feet Note Long runs should be avoided 4 Terminate the outside air pipe below the exhaust vent outlet 5 An open mesh screen should be placed over the outside air pip...

Page 23: ...OF THE PELLET STOVE 3 CAUTION THE STRUCTURAL INTEGRITY OF THE FLOORS WALLS CEILING AND ROOF MUST BE MAINTAINED 4 Permanently bolt the stove to the floor X 5 Electrically ground the stove and pedestal to the metal chassis of the home Use a number eight 8 gauge or larger copper wire Y 6 Maintain an effective vapor barrier at location where PL vent exits the structure 7 Check any other local building...

Page 24: ...t chimney fire The chimney and chimney connector should be inspected at least once every two months during the heating season to determine if a creosote build up has occurred If a significant layer of creosote has accumulated 3 mm or more it should be removed to reduce the risk of a chimney fire Use of an appropriately sized chimney brush or the services of a professional chimney sweep are recomme...

Page 25: ...CK 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 Verify the installation is correct before firing up the Stove for the first time 1 The fans of this Stove may cause a negative pressure area in the room where this Stove is installed ...

Page 26: ...f the Prescott EXP and EXL by monitoring sensors that are in the system These sensors serve 2 purposes a General Operation of the stove 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 stove These areas are 1 High Temperature Limit 2 Proof of Fire Sensor 3 Vacuum in ...

Page 27: ...tting This new setting will stay in memory from this point on 5 The Thermostat Slide switch allows the stove to be run in 3 different Modes a Manual Mode The Control Board controls all functions of the Prescott EXP and EXL b T Stat Mode The Stove is Fully Automatic in the T Stat Mode T Stat requires the stove be turned on at the control board the first time The unit is hooked to a Thermostat and w...

Page 28: ...e the Versa Grate system Igniter installed This program is the default program for use with the Prescott EXP and EXL and is for use with PFI Premium Pellets DO NOT USE THIS PROGRAM WITH THE AUBURN Program 4 The Cycle Time is 10 seconds This Program offers Self Ignition and is only for units that have the Versa Grate system Igniter installed and is for use with PFI Premium Pellets DO NOT USE THIS P...

Page 29: ...e stove starts up properly Once the On Off button has been pushed the Ignition Cycle takes over The Ignition Cycle works as follows a The Combustion fan and Room fan come on at high speed and the control board checks to make sure the Vacuum switch locks in See Diagnostic features on page 34 and 35 b If the board senses the Vacuum switch the Combustion fan drops to the 1 setting and the Room fan sh...

Page 30: ... as the fuel is very dirty then making a change to the damper is correct However if the Stove needs cleaning changing the Damper may mask the fact that the stove is getting plugged It is always a good idea to thoroughly clean your stove before making a significant damper change If you experience problems adjusting the Stove during the Break In Period contact your dealer Some chimney systems will f...

Page 31: ...heck for the formation of creosote in the unit and venting system during the season Constantly running the Stove on a low setting with too much combustion air may cause creosote to form Burn pot temperatures can be too cool when burning on low with too much draft Additional draft adjustments can be made using the Draft trim feature built into the control board Read point 4 on page 27 and read the ...

Page 32: ...ng costs While the room temperature remains cooler than your desired thermostat setting the stove will operate at any of the 5 HEAT ADJUST selector positions Read the Operations manual to determine which Thermostat Mode you want to use You can choose between the T Stat Mode and the SmartStat Mode 1 Once you have successfully lit your stove set the thermostat to your desired heating needs 2 Set the...

Page 33: ...rger home will require more heat than a small one Keep in mind that the Stove is constantly producing some heat that helps heat the home while it is in pilot mode If the home seems too warm and the Thermostat is never calling for heat a lower pilot setting may be a better fit for the home Read point 2 on page 27 for adjusting the feedrates on the low setting Running the unit in the T Stat mode wil...

Page 34: ...uttons Once Vacuum has been restored the unit will revert to normal operation Unresponsive Control Board When the control board becomes unresponsive the control board may be in Internal Alarm The control board has sensed one of the Safety sensors This may cause the unit to go out and flash a Diagnostic Code In some cases after waiting approximately 45 seconds the Stove will start responding to the...

Page 35: ...EXL Maintenance NOTE WHEN YOU FIRST OPERATE THE STOVE CHECK TO DETERMINE THE FREQUENCY OF CLEANING THE STOVE REQUIRES A MINIMUM AMOUNT OF DAILY MAINTENANCE REQUIRED MAINTENANCE DEPENDS LARGELY UPON THE QUALITY OF FUEL BURNED AND THE RATE OF BURN THE AMOUNT OF DAILY MAINTENANCE WILL INCREASE IF FUEL QUALITY DECREASES AND OR THE BURNING RATE OF THE FUEL INCREASES NOTE FAILURE TO KEEP YOUR STOVE CLEA...

Page 36: ...matically from one fuel to another Pellets with high ash content or that have increased amounts of impurities or high moisture content The St Croix Versa Grate system is a 2 piece burnpot design The top Part is called the Grate Weldment This sits on top of the Shaker Plate This in turn sits on top of the Shaft Cage Weldment which is held in place with the Spacer Self Locking Twist pin The Shaft Ca...

Page 37: ...Heat Level 1 and allow the flame to burn down to a low burn c Open the firebox door slowly to prevent drawing ash or odors into the room d Use the Pot Scraper tool provided to move the burning pellets to one side of the grate leaving the ash in the bottom of the grate See Figure 23 e Rake the ash clinkers out over the grate into the ash pan f Rake the burning pellets across the bottom of the grate...

Page 38: ...w Cooling the stove and wiping the window daily with a cloth or paper towel will normally keep the window from accumulating difficult to clean residue Use of a glass cleaner ONLY permitted when the stove is cold Tip Dip the damp towel in the ashes to remove stubborn buildup on the glass CAUTION Do not slam the door Do not operate the stove with a broken or cracked glass Replace only with heat resi...

Page 39: ...sed To remove the baffle See Figure 25 lift the back of the baffle up to clear the inner back of the stove and slide towards the front of the stove The baffle will slide out of the keyhole slots and drop down When putting the baffle back in the stove make sure the tabs are in the keyhole slots and the back of the baffle is lifted up over the inner back Failure to clean the baffle can cause the Sto...

Page 40: ...ts in the back of the stove Carefully clean or vacuum any dust cobwebs and household dust Carefully vacuum around the fan motors If electrical wires become disconnected call your dealer for service 1 Spring Shutdown After the last burn in the spring let the unit cool down Remove all fuel from the hopper and the auger Thoroughly clean the burn pot burn pot box ash pan and ash traps behind the ash p...

Page 41: ...it is in use 3 Creosote Soot and Fly Ash Formation and the need for Removal The products of combustion will contain small particles of Fly Ash The fly ash will collect in the venting system and restrict the flow of flue gases Incomplete combustion such as occurs during start up and shut down or incorrect operation of the room heater will lead to some soot or creosote formation which will collect i...

Page 42: ...4 Amp with the igniter running and approximately 2 Amp with out the igniter running The minimum recommended circuit is 15 Amp A dedicated circuit for the Stove is recommended CAUTION The electrical components of the Stove are not owner serviceable Call your dealer for proper diagnosis of electrical problems and service to those components ...

Page 43: ...ic Maintenance Then check all Gaskets Doors and Door Latching Systems for air leaks Any leaks in these areas will negatively affect the burn process and cause the pot to overload 3 My Stove isn t burning and the number 2 LED light is blinking This diagnostic light indicates the vacuum switch no longer senses negative pressure in the firebox area of the Stove What could be the cause of this a The d...

Page 44: ...imit has shut the Stove down The Convection Blower could be defective or may need cleaning The high limit switch may be also defective It is best to call your dealer for support when trying to troubleshoot the High Limit Switch Do not use your Stove if the High Limit switch frequently trips 6 I turned the Stove on with the On Off switch and nothing happens First check to see if the Stove is plugge...

Page 45: ... feedrate LED s 4 5 and 2 adjustments decreasing the feedrates LED s 1 2 The ON time is increased or decreased 25 seconds with each adjustment Figure 28 9 Are there any adjustments that can be made to the Combustion Fan voltages to help adjust the draft Answer The Draft can be adjusted in a similar fashion as mentioned in the previous example The Fan voltages can be fine tuned while the Stove is i...

Page 46: ...ROGRAM FOR USE WITH THE PRESCOTT EXP AND PRESCOTT EXL This program is for use with PFI Premium Pellets 4 Program 4 The Cycle Time is 10 seconds This Program offers Self Ignition and is only for units that have the Versa Grate system Igniter installed Program 4 is for adjusting for variations that occur with PFI Premium Pellets Ask your dealer before using this Program in your unit See page 25 for ...

Page 47: ...Prescott Series Installation and Operation Manual Page 47 PARTS LAYOUT Figure 32 ...

Page 48: ...COTTER PIN 15 80P30049 R DECORATIVE GRILL LEFT SIDE 16 80P30050 R DECORATIVE GRILL RIGHT SIDE 17 80P53646 R ASH PAN 18 80P52629 R MANUAL RESET HIGH LIMIT SWITCH 19 80P54223 R DOOR MAGNET ASSEMBLY 20 80P52237 R CLEAN OUT COVER 21 80P30946 R STEEL BRICK PANEL RIGHT SIDE 22 80P54127 R STEEL BRICK PANEL BACK PANEL 23 80P30945 R STEEL BRICK PANEL LEFT SIDE 24 80P65021 R DOWEL HINGE PIN 25 80P20033 R DO...

Page 49: ...6 R AUGER WELDMENT 45 80P60083 R AUGER WASHER 46 08P30191 R MOTOR RETAINER BRACKET 47 80P20278 R AUGER MOTOR 48 80P20003 R CONVECTION BLOWER 49 80P31220 R FRONT BUSHING PLATE 50 80P31221 R REAR BUSHING PLATE 51 80P53695 R SHAFT CAGE WELDMENT 52 80P52953 R VERSA GRATE BRACKET ASSEMBLY 53 80P20296 R VERSA GRATE MOTOR 54 80P52372 R VERSA GRATE COLLAR W SETSCREWS 55 80P52376 R CAM CONNECTOR ROD 56 80P...

Page 50: ...his warranty have been met the manufacturer s total responsibilities and liabilities shall be to repair or replace at the manufacturer s option the defective part s All costs of removal shipment to and from the dealer or manufacturer any losses during shipment and reinstallation and any other losses due to the Stove being removed shall be covered by the owner of the Stove NEITHER THE MANUFACTURER ...

Page 51: ...eed Trim and Draft Trim on the control board in the area below Feed Trim Circle one See point 2 on page 27 LED 1 LED 2 LED 3 LED 4 LED 5 Draft Trim Circle one See point 4 on page 27 LED 1 LED 2 LED 3 LED 4 LED 5 APPROVED FUEL PFI PREMIUM PELLETS PROGRAM Circle one see Figure 19 on page 28 3 4 Serial Number Date of Purchase Dealer Information ...