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PELLET STOVE
EF-ΙΙ i
OWNER’S TECHNICAL MANUAL
SHERWOOD INDUSTRIES LTD.
6782 OLDFIELD ROAD
VICTORIA, BRITISH COLUMBIA
V8M-2A3
ENVIROFIRE INSTALLATION MANUAL
TABLE OF CONTENTS |
|
INTRODUCTION |
|
Important Safety Data...................................................................... |
3 |
Pellet Quality ................................................................................... |
4 |
Warnings and Recommendations.................................................... |
5 |
Automatic Safety Features .............................................................. |
5 |
OPERATION |
|
How to Start Your Pellet Stove ........................................................ |
6 |
Turning Your Pellet Stove Off.......................................................... |
6 |
Slider Damper.................................................................................. |
7 |
SPECIFICATIONS / MAINTENANCE |
|
Areas for Routine Maintenance .................................................... |
8-9 |
Electrical Component Functions ............................................... |
10-11 |
INSTALLATION |
|
Deciding Where to Locate Your Pellet Stove................................. |
12 |
Vent Termination Requirements .................................................... |
12 |
Removing Your New Stove From It’s Pallet................................... |
13 |
Masonry Fireplace Insert Installation ............................................. |
14 |
Assembling the Face Plate for the FPI and BIH ............................ |
15 |
Model BIH Recommended Framing .............................................. |
16 |
Built In Heater Installation, Model BIH ........................................... |
16 |
Clearances and Alcove Clearances............................................... |
17 |
Model FS (freestanding) Installation .............................................. |
18 |
Horizontal Exhaust through the Wall ........................................ |
19-20 |
Freestanding Inside Vertical Installation ........................................ |
21 |
Freestanding Outside Vertical Pipe Installation ............................. |
22 |
Mobile Home Installation ............................................................... |
23 |
Outside Fresh Air Connections...................................................... |
23 |
Troubleshooting........................................................................ |
24-26 |
Wiring Diagram.............................................................................. |
27 |
Parts List ....................................................................................... |
28 |
Exploded Views ........................................................................ |
29-30 |
Warranty........................................................................................ |
31 |
2
IMPORTANT SAFETY DATA
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.
CAUTION: DO NOT CONNECT OT ANY AIR DISTRIBUTION DUCT OR SYSTEM;
DO NOT BURN GARBAGE OR FLAMABLE FLUIDS SUCH AS GASOLINE, NAPTHA OR ENGINE OIL;
HOT WHILE IN OPERATION. KEEP CHILDREN, CLOTHING AND FURNITURE AWAY. CONTACT MAY CAUSE SKIN BURNS.
Contact local building officials about restrictions and installation inspection requirements in your area.
The stove’s exhaust system works with negative combustion chamber pressure and a slightly positive chimney pressure, it is very important to ensure that the exhaust system be sealed and airtight.
The use of grates or other methods of supporting the fuel is not permitted.
This unit is designed to burn pelletized wood fuel only. Do not use any other type of fuel, this will void any warranties stated in this manual.
THE USE OF CORDWOOD IS PROHIBITED BY LAW.
Do not burn with insufficient combustion air. A periodic check is recommended to ensure proper combustion air is admitted to the combustion chamber. Setting the proper combustion air is achieved by adjusting the slide damper located on the left side of the stove.
It is advisable to clean the exhaust vent bi-annually or every two tons of pellets.
The grounded electrical cord should be connected to a standard 115 volts, 60-hertz electrical outlet. Be careful that the electrical cord is not trapped under the appliance and that it is clear of any hot surfaces or sharp edges. This unit’s maximum power requirement is 450 watts (3.91 Amps).
Soot or creosote may accumulate when the stove is operated under incorrect conditions such as an extremely rich burn (black tipped, lazy orange flames).
When installing the stove in a mobile home, it must be electrically grounded to the steel chassis of the home and bolted to the floor. Make sure that the structural integrity of the home is maintained.
Be sure to maintain the structural integrity of home when passing a vent through walls, ceilings, or roofs.
The ash pan and viewing door must be locked securely for proper and safe operation of the pellet stove.
If you have any questions with regards to your stove or the above-mentioned information, please feel free to contact your local dealer for further clarification and comments.
Since Sherwood Industries Ltd. has no control over the installation of your stove, we grant no warranty implied or stated for the installation or maintenance of your stove, therefore, Sherwood Industries Ltd. assumes no responsibility for any consequential damage.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE
3
PELLET QUALITY IS IMPORTANT,
PLEASE READ THE FOLLOWING PAGE
Your pellet stove has been designed to burn wood pellets only. Since there are many manufacturers of wood pellets it is important to select pellets that are free of dirt or any impurities. The Pellet Fuel Industries (P.F.I.) has established standards for wood pellet manufactures. We recommend the use of pellets that meet or exceed these standards. Ask your dealer for a recommended pellet type.
THE PERFORMANCE OF YOUR PELLET STOVE IS GREATLY EFFECTED BY THE TYPE AND QUALITY OF WOOD PELLETS BEING BURNED. AS THE HEAT OUTPUT OF VARIOUS QUALITY WOOD PELLETS DIFFER, SO WILL THE PERFORMANCE AND HEAT OUTPUT OF THE PELLET STOVE.
Since Sherwood Industries Ltd. has no control over the quality of pellets that you use, we assume no liability caused by the quality of wood pellets used.
P.F.I. PELLET STANDARDS: |
|
Fines ..................................... |
1% maximum through a 1/8” screen |
Bulk Density .......................... |
40 lbs. per cubic foot minimum |
Size ....................................... |
1/4” to 3/8” diameter 1 – 1.5” long maximum |
Ash Content .......................... |
1% maximum |
Moisture Content................... |
8% maximum |
Heat Content......................... |
approximately 8200 Btu per lb. minimum |
Check the burn-pot liner periodically to ensure that the holes are not blocked with clinkers, (clinkers are silica in the fuel that forms a hard mass during the burning process). If they are blocked, remove the liner (when the unit is cold) and clean the clinkers out. The liner should be cleaned or scraped once every 2-3 days depending on wood pellet quality. Clean the holes in the lines with a small pointed object.
Store pellets at least 36” (1 m) away from the pellet stove.
4
WARNINGS AND RECOMMENDATIONS
A.Do not abuse the glass by striking or slamming the door shut.
B.Do not attempt to operate the stove with broken glass.
C.Do not attempt to open the door and clean the glass while the unit is in operation. If you must clean the glass, use a soft cotton cloth and mild window cleaner.
D.Do not use abrasive cleaners to clean the surface or any part of the stove.
E.It is recommended that the unit be secured into its position in order to avoid any displacement.
F.Never use gasoline, gasoline-type lantern fuel, kerosene, or similar liquids to start the fire. Keep all such liquids well away from the pellet stove while it is in use.
G.Disposal of ashes - Ashes should be placed in a metal container with a tight fitting lid. The closed container of ashes should be on a non-combustible floor or on the ground, well away from all combustible materials pending final disposal. If the ashes are disposed of by burial in soil or otherwise locally dispersed, they should be retained in the closed container until all cinders have thoroughly cooled.
H.Make sure the ash pan is closed tightly during the operation of the stove.
I.Fresh air intake is strongly recommended. Failure to install Intake air may result in improper combustion as well as the unit the unit smoking during power failures.
NOTE: Fresh air is mandatory on all units installed in “Mobile Homes” as well as “Air Tight” homes.
J.GOLD BARS: Clean all fingerprints off of all the gold parts before firing each time. Fingerprints etc. can become etched in the gold if not removed before operating the pellet heater.
K.BRICK PANEL: The paint on the steel brick panel may peel, this is due to the extreme conditions applied to the paint and is in no way covered under warranty.
L.KEEP ASH PAN FREE OF RAW FUEL. DO NOT PLACE UNBURNED OR NEW PELLET FUEL IN ASH PAN. A fire in the ash pan could be the result.
AUTOMATIC SAFETY FEATURES OF YOUR PELLET STOVE
A.With the auto/manual switch in the auto position, the stove will shut off when the fire goes out and the exhaust temperature drops below 120° F (49°C). If the switch is in the manual position, the stove will continue to feed pellets into the burn pot after the exhaust temperature drops below 120° F (49°C) and the ignitor will reheat.
B.The stove has a high temperature safety switch. If the temperature at the back of the firebox reaches 200° F (93°C), the auger will automatically stop, and the stove will shut down when the exhaust temperature cools. If this happens, call your local dealer to reset the 200° F (93°C) high limit switch. ALSO FIND THE REASONS WHY THE UNIT OVERHEATED.
C.The stove has a convection fan control over-ride. This function causes the convection fan to
reach its full speed when the temperature at the back of the firebox reaches 160° F (71°C). This is a normal safety feature of your unit. To compensate for the fan cycling action that may occur, turn up the blower control proportionately to the heat output.
If the power goes out, the stove will stop running. When the power comes back on, the stove will not restart if the switch is in the auto position and the exhaust temperature is below 120° F (49°C). If the exhaust temperature is above 120° F (49°C) or the switch is in the manual position, the stove will start to feed pellets again and may re-light itself
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HOW TO START YOUR PELLET APPLIANCE
1.Fill hopper with pellets.
2.Switch the power on by pushing the rocker switch to the manual position.
3.Turn Dial A Fire knob to the 12 o’clock position. (The lower grade pellets may need a higher setting on the feed rate.)
4.Approximately 15 minutes after the fire was lit, the green light should come on.
WHEN THE GREEN LIGHT COMES ON, PUSH THE ROCKER SWITCH TO THE AUTO POSITION. Now the stove will shut off automatically if the fire goes out.
5.Wait until the fire is established, then turn the Dial A Fire knob clockwise to the desired heat output. (The stove may not be able to burn in the BLUE ZONE if poor quality wood pellets are being used. Adjust the slider damper to the appropriate setting.
6.Adjusting the blower speed control knob will vary the rate of airflow into the room by varying the speed of the convection blower. *NOTE: The convection blower may cycle to high automatically depending on the setting of the Dial A Fire knob and the blower speed control knob.
FAN
CONTROLLER
GREEN LIGHT
AUTO/MANUAL ROCKER SWITCH
HEAT OUTPUT
KNOB
DIAL-A-FIRE
TURNING YOUR PELLET APPLIANCE OFF
The auto/manual switch must be in the AUTO position during operation. To turn the stove off, simply turn the HEAT OUTPUT knob (knob “B”) counter-clockwise until the knob clicks to the “off” position. This will stop the feed of pellets. The blowers will continue to run and cool the stove.
SPECIAL NOTES
If the stove is left in the manual mode after the green light comes on, the auger will continue to feed pellets. Pellets may over flow the burn-pot after the fire goes out and also re-light.
The scale on knob “B” represents a range, not exact times. Wood pellets of differing quality may effect the performance/heat output of the stove. If the stove has trouble operating at the end of its range, adjust the heat output knob back slightly.
6
SLIDER/DAMPER INSTALLATION /OPERATIONS INSTRUCTIONS
This is used to regulate the airflow through the pellet stove.
INSTALLATION:
1.Remove the slider rod (short rod with knob and nuts) and the two nuts from their package and open the left side panel. This is the smaller of the two rods. Remove the knob from the knob.
2.Remove the knob and the outer nut from the rod. Push the rod through the hole in the slider. Place the other nut on the rod and tighten, leaving a 1/32” gap between the slider and one of the other nuts.
3.Make sure the slider moves freely. Close the left side panel and the tighten screws. Push the rod through the hole in the side panel. Screw the knob on to the slider rod.
OPERATION:
1.On the low heat output settings, push the slider all the way in.
2.On the high heat output pull the slider out until a good fire is achieved. A good fire is in between a fire with lazy flames (black tipped flames) and a forced fire (very quick, shorter flames). A good fire is the most efficient and will have a bright and active flame.
3.Hot magnehelic reading 0.10--0.12
ON LOW |
ON HIGH |
Push all the |
Pull out until an |
way in |
efficient flame is |
|
achieved |
THE SCRAPER ROD: Push the stainless steel rod through the hole in the heat exchanger, thread the rod into the scraper plate.
7
AREAS FOR ROUTINE INSPECTION
The following should be inspected periodically to ensure that the appliance is operating at its optimum and giving you excellent heat value:
2-3 DAYS/WEEKLY |
SEASONALLY or 2 TONS OF FUEL |
Burn Pot and Liner |
Exhaust Vent and Fresh Air Intake Tube |
Ash Pan |
Blower Mechanisms |
Inside Firebox |
Heat exchanger tubes |
Behind Firebox Liners |
Latch Mechanism of ash pan |
Door Glass |
Door Latch |
Heat exchanger tubes |
All Hinges |
Ash pan and Door gaskets |
Post Season Clean-up |
TOOLS REQUIRED TO CLEAN UNIT: Torx T-20 Screwdriver, 5/16 Socket and Ratchet, Brush, Soft Cloth, Vacuum with fine filter bag
ASH PAN AND DOOR GASKETS
After excessive use the gasketing may come loose. To repair this, glue the gasketing on using high-temperature fiberglass gasket glue available from your local dealer. This is important to maintain an airtight assembly.DO
NOT PLACE UNBURNED OR RAW PELLET FUEL IN ASH PAN. BURNER POT AND LINER
This is the ‘pot’ where the pellets are burned. Every two to three days (when the unit is cold) remove the burn-pot liner from the stove. Using a metal scrapper remove material that has accumulated or is clogging the liner’s holes. Then dispose of the scrapped ashes from the liner and from inside the burn-pot. Place the burn-pot back into the stove, making sure that the pipes are properly inserted into the burn pot and the front tabs are in place in the firebox. Place the liner back into the burn-pot, making sure that the ignitor hole in the liner is aligned with the ignitor tube. Pushing the liner up against the igniter tube.
To remove the burn pot and burn pot liner open the door using the door handle provided located on the left-hand side of the stove, swing the door open. Lift the liner from the burn pot, lift the burn pot from the firebox by gently lifting the front of the burn pot up first then sliding the assembly from the air intake tube and the igniter cartridge.
BURN POT
LINER FRESH AIR
TUBE
IGNITER TUBE
BURN POT
INSERT ASH REMOVAL:
The EF-2i pellet stove insert does not have an ash pan and the ashes must be vacuumed out of the firebox on a daily basis. CAUTION: BECAUSE THE FLY ASH IS VERY FINE, THE USE OF A VACUUM BAG WILL BE REQUIRED TO PREVENT ASH FROM BEING BLOWN BACK INTO THE ROOM. Please pay special attention that there are no hot ashes in the firebox or there could be a possibility of a fire hazard inside the vacuum cleaner. Place all hot ashes into a noncombustible container.
FREESTANDING ASH PAN:
This part is located under the burner, in the pedestal and has a latching mechanism to secure it. To remove the ash pan, unlock the latch on the pedestal cover and then pull the pan out. Dump the ashes into a metal container stored away from combustibles. Monitor the ash level every week. Remember that different pellet fuels will have different ash contents. Ash content is a good indication of fuel efficiency and quality. Refer to “Warnings and Recommendations” for disposal of ashes.
BLOWER MECHANISMS
Unplug the stove then open the right/left side panels to access the two blowers. Only the convection blower motor (on the right side of the stove) will require lubrication. The convection motor has two lubrication holes on it. Use two drops of SAE 20, light oil to lubricate every six months. Excess oil may damage the motor. The exhaust blower’s motor has sealed bearings, DO NOT lubricate this motor.
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DOOR GLASS
(It is recommended that your dealer replace the glass if broken.)
The door glass is made of 5 mm thick, high temperature PYROCERAMIC The center panel is 229 mm x 330 mm. To replace the glass, unscrew and remove the four glass retainers. Remove the glass and any broken pieces. High temperature fiberglass tape should be used around the glass. Replace the glass, center the glass assembly in the frame, then screw the glass retainers back to the frame. The use of substitute materials is prohibited.
FRESH AIR INTAKE
Inspect periodically to be sure that it is not clogged with any foreign materials.
INSIDE FIREBOX
For bi-weekly clean out, ash may be removed from behind the steel plates by rotating the circular cover to allow vacuuming behind the plates.
Removal of the fire box backing for bi-annual cleaning
-Remove the top baffle.
-Lubricate, and then remove the 7 screws that hold the brick liner in place. Tilt the top of the brick panel towards the firebox opening and pull out to remove from the firebox
-Remove the top rod by first removing the screw that holds it in place, then slide the rod sideways
-Pull the side panels into the center of the firebox, then out
-Pull the center panel out
-Clean all passages thoroughly
Installation of fire box backing:
-Install the side panels in place. Insert center panel, hold the panels in place
-Install the top rod by sliding it into one side panel then across into the other panel. Screw rod in place.
-Re-install steel brick liner and screw into place.
-Replace top baffle
EXHAUST VENT
Soot and Flyash: Formation and Need for Removal: - The products of combustion will contain small particles of flyash. The flyash will collect in the exhaust venting system and restrict the flow of the flue gases. Incomplete combustion, such as occurs during startup, shutdown, or incorrect operation of the room heater will lead to some soot formation which will collect in the exhaust venting system. The exhaust venting system should be inspected at least once every year or after two tons of pellets to determine if cleaning is necessary. We recommend contacting your dealer for professional cleaning. To remove dust from the vent pipe, tap lightly on the pipe to dislodge any loose ash. Open the bottom of the ”T” to dump the ash, then vacuum as much of the ash out of the vent pipe as possible.
HEAT EXCHANGER TUBES
The cleaning rod is to be pulled back and forth a few times (ONLY WHEN THE UNIT IS COLD) in order to clean away any fly ash that may have collected on the heat exchanger tubes. As different types of pellets produce different amounts of ash, cleaning of the tubes should be done on a regular basis to enable the unit to run efficiently.
POST SEASON CLEAN-UP
Once you are finished using the pellet appliance for the season, unplug the stove for added electrical protection. It is very important that the stove be cleaned and serviced as stated above. (See Section Areas of Routine Inspection)
9
ELECTRICAL COMPONENT FUNCTIONS
The following is a list of electrical components and their functions on the ENVIROFIRE EF-IIi pellet stove.
1.CONVECTION FAN CONTROLLER
This controller is responsible for varying the speed of the convection blower. The stove has a fan control-over- ride. Should the convection blower be set on low and the Dial-A-Fire set on high, the convection blower will bypass the fan controller and go to high. This will cool the stove until control is given back to the fan controller. To eliminate possible cycling of the convection blower, turn up the fan speed proportionately to the Dial-A-Fire.
2.STOVE TEMPERATURE LIGHT
This light is designed to tell the operator when the units exhaust temperature is above 120°F (49°C). The auto/manual switch should be put in the auto position when the green light comes “ON”.
3.AUTO/MANUAL SWITCH
In the MANUAL position this switch bypasses the 120°F (49°C) temperature sensor. This will allow you to start and operate the stove when it is cold. In the AUTO position, the 120°F (49°C) sensor has control of the stove. This allows the stove to shut off if the fire goes out.
4.DIAL-A-FIRE (HEAT OUTPUT CONTROL)
This unit is responsible for controlling the timing of the auger motor. When turned clockwise, it will cause the OFF time between auger pulses to shorten, resulting in more heat output and pellet consumption. Turn the knob counter-clockwise and the reverse will happen. When it is turned fully counter-clockwise past the “click”, the auger will stop.
5.CONVECTION BLOWER
This blower fan (mounted on right hand side of the stove) draws room air from the back of the stove and passes the air through the heat exchanger tubes and back into the room. This sealed system keeps the room air separate from the combustion air. The convection fan controller controls this fan’s speed.
6.COMBUSTION/EXHAUST BLOWER
This constant fan (mounted on the left side of the stove) is responsible for drawing the outside fresh air into the combustion chamber for burning. The hot air then continues to be drawn over the heat exchanger tubes and into the exhaust channel. It is then pushed out through the exhaust system.
7.AUGER MOTOR AND AUGER
This 1-rpm auger motor is responsible for turning the auger, which in turn transports pellets to be dropped into the burn pot. The auger motors control is handled by the timing control module and the Dial-A-Fire.
8.TIMING CONTROL MODULE
The timing control module is mounted on the right hand side rear pillar of the stove. The module controls the switching of power to the auger. The modules switching duty is controlled by the Dial-A-Fire.
9.200°F (93°C) MANUAL RESET TEMPERATURE SENSOR
This sensor (located on the right side firewall) has a red push button located in its center. This is a safety device. In the event that the convection blower fails, this sensor will overheat and shut off power to the auger motor.
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