Enviro P4 Owner's Manual

WARRANTY REGISTRATION

enviro.com/warranty

P4

F R E E -S TAN D I N G PE LLE T S TOVE

OWNER’S MANUAL

PLEASE READ THIS ENTIRE MANUAL BEFORE INSTALLATION AND USE
OF THIS PELLET BURNING ROOM HEATER. FAILURE TO FOLLOW THESE
INSTRUCTIONS COULD RESULT IN PROPERTY DAMAGE, BODILY INJURY
OR EVEN DEATH

CONTACT YOUR BUILDING OR FIRE OFFICIALS ABOUT RESTRICTIONS
AND INSTALLATION INSPECTION REQUIREMENTS IN YOUR AREA.

Version Française: www.enviro.com/fr.html

INSTALLER: LEAVE THIS MANUAL WITH THE WOOD STOVE.
CONSUMER: RETAIN THIS MANUAL FOR FUTURE REFERENCE

50-3136

Table of Contents

Introduction...................................................................................................................3

Important Safety Data........................................................................................................3

Emissions and Efficiencies...................................................................................................4

Safety Warnings And Recommendations..............................................................................5

Rating Label Location.........................................................................................................7

Pellet Quality......................................................................................................................7

Installation.......................................................................................................................8

Deciding Where to Locate the Appliance............................................................................8

Unpacking and Removing Pellet Stove From Pallet..............................................................8

Clearances to Combustibles................................................................................................10

Alcove Clearances.............................................................................................................10

Vent Termination Requirements.........................................................................................11

Outside Fresh Air Connection...........................................................................................12

Exhaust and Intake Locations...........................................................................................12

Mobile Home Installation..................................................................................................13

Corner Through Wall Installation.......................................................................................13

Horizontal Exhaust Through Wall Installation....................................................................14

Through Wall Vertical Rise Horizontal Termination - Freestanding.......................................15

Inside Vertical Installations................................................................................................16

Outside Vertical Installations..............................................................................................16

Hearth Mount Installation................................................................................................17

Thermostat Installation.....................................................................................................18

Specifications.......................................................................................................................19

Dimensions and Specifications...........................................................................................19

Operating Instructions..................................................................................................................20

Control Board Functions....................................................................................................20

Automatic Safety Features of Your Pellet Stove...................................................................20

Operating Your Pellet Stove...............................................................................................21

Turning Your Pellet Stove Off..............................................................................................21

Damper Set-Up.................................................................................................................21

Guidelines For Fine-Tuning For Fuel Quality........................................................................22

Routine Cleaning and Maintenance................................................................................................23

Troubleshooting.................................................................................................................27

Wiring Diagram...........................................................................................................................30

Parts List.....................................................................................................................................31

Parts Diagram..............................................................................................................................33

Rating Label................................................................................................................................35

Warranty..................................................................................................................36

Installation Data Sheet...............................................................................................................37

Notes.......................................................................................................................................38

2

Introduction

Important Safety Data:

Please read this entire Owner’s Manual before installing or operating your ENVIRO Pellet Stove.
Failure to follow these instructions may result in property damage, bodily injury or even death. Any
unauthorized modification of the appliance or use of replacement parts not recommended by the
manufacturer is prohibited.

Contact your local building or fire official to obtain a permit and any information on installation restrictions and
inspection requirements for your area. All local regulations, including those referring to national and European
Standards need to be complied with when installing this appliance.

To prevent the possibility of a fire, ensure that the appliance is properly installed by adhering to the installation
instructions. An ENVIRO dealer will be happy to assist you in obtaining information with regards to your local
building codes and installation restrictions.

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 ash pan and viewing
door must be locked securely for proper and safe operation of the pellet stove. Operating with door open could
cause a fire inside the house as well as the release of carbon monoxide into the living space.

Carbon monoxide is a colorless and odorless gas, to prevent it from poisoning you or your family know the
symptoms of carbon monoxide poisoning: headache, dizziness, weakness, sleepiness, nausea, vomiting, and
confusion. Carbon monoxide reduces the blood’s ability to carry oxygen. Low blood oxygen levels can result in
loss of consciousness and death.

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 slider
damper located on the left side of the stove.

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 and all construction meets
local building codes.

Consider all large air moving devices when installing your unit and provide room air accordingly. NOTE: Extractor
fans when operating in the same room or space as the appliance, may cause problems. Limited air for combustion
may result in poor performance, smoking and other side effects of poor combustion.

Soot or creosote may accumulate when the stove is operated under incorrect conditions such as an extremely
rich burn (black tipped, lazy orange flames).

Be sure to maintain the structural integrity of your home when passing a vent through walls, ceilings, or roofs.
It is recommended that the unit be secured into its position in order to avoid any displacement. This appliance
must be installed on a floor with an adequate load bearing capacity. If an existing construction doesn’t meet
these prerequisite, suitable measures (e.g. load distributing plate) shall be taken to achieve it.

FRESH AIR: Outside Fresh Air connection is optional. Fresh Air must be connected to all units installed in Mobile
Homes and Air Tight Homes (R2000) or where required by local codes.

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.

3

Introduction

emISSIonS anD effIcIency - evolutIon:

Rates: This manual describes the installation and operation of the Enviro P4 Pellet heater. This heater
meets the 2015 U.S. Environmental Protection Agency’s pellet emission limits for pellet emission

limits sold after May 15, 2015. Under specic test conditions this heater has been shown to deliver

heat at rates ranging from 8,200-23,000 Btu/hr.

WARNING: This pellet heater needs periodic inspection and repair for proper operation. It is against
federal regulations to operate this pellet heater in a manner inconsistent with operating instructions
in this manual.

WARNING: This pellet heater has a manufacturer set minimum low burn rate that must not be
altered. It is against federal regulations to alter this setting or otherwise operate this pellet heater in
a manner inconsistent with operating instructions in this manual.

4

Introduction

Safety WarnIngS anD recommenDatIonS:

Caution: Do not connect to any air distribution duct or system. Do not burn garbage or flammable fluids
such as gasoline, naphtha or engine oil. Unit hot while in operation. Keep children, clothing and furniture
away. Contact may cause skin burns.

Warning: Parts of the appliance, especially the external surfaces, will be hot to touch when in operation and
due care will need to be taken. Never place wood, paper, furniture, drapes or other combustible materials within

80cm (31½”) of the front of the unit, 20cm (7⅞”) from each side, and 10cm (4”) from the back of the unit. Do

not let children or pets touch it when it is hot.
To prevent the possibility of a fire, ensure that the appliance is properly installed by adhering to the installation

instructions. An ENVIRO dealer will be happy to assist you in obtaining information with regards to your local
building codes and installation restrictions.

FIRE EXTINGUISHER AND SMOKE DETECTION:

All homes with a pellet burning stove should have at least

one re extinguisher in a central location known to all in the household. Smoke detectors and carbon monoxide
detectors should be installed and maintained in the room containing the stove. If it sounds the alarm, correct the
cause but do not deactivate. You may choose to relocate the smoke detection devise within the room; DO NOT
REMOVE THE SMOKE OR CARBON MONOXIDE DETECTORS FROM THE ROOM.

CHIMNEY OR RUN AWAY FIRE: Call local fire department (or dial 911). Close the draft fully. Examine the flue
pipes, chimney, attic, and roof of the house, to see if any part has become hot enough to catch fire. If necessary,
spray with fire extinguisher or water from the garden hose. IMPORTANT: Do not operate the stove again until
you are certain the chimney and its lining have not been damaged.

FUEL: This pellet stove is designed and approved to only burn wood pellet fuel with up to 3% ash content. Dirty
fuel will adversely affect the operation and performance of the unit and may void the warranty. Check with your
dealer for fuel recommendations.

THE USE OF CORD WOOD IS PROHIBITED BY LAW.

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 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 to determine if cleaning is necessary.

CREOSOTE: When wood is slowly burned it produces tar and other organic vapours and these combine with
expelled moisture to form creosote. The creosote vapours condense in the relatively cool chimney flue associated
with a slow burning fire. As a result, creosote residue accumulates on the flue lining. When ignited this creosote
can result in an extremely hot chimney fire.

CLEANING: There will be some build up of fly ash and small amounts of creosote in the exhaust. This will vary
due to the ash content of the fuel used and the operation of the stove. It is advisable to inspect and clean the
exhaust vent semi-annually or every two tons of pellets.

ASHES: Disposed 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 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 dispensed, they should be retained
in the closed container until all cinders have been thoroughly cooled.

5

Introduction

ELECTRICAL: The use of a surge protected power bar is recommended. The unit must be grounded.
The grounded electrical cord should be connected to a standard 110-120 volts, nominal average 2.0 Amps (4.1
Amps peak), 60 hertz electrical outlet and also must be accessible. Ensure the polarity to the outlet the unit will
be plugged into is correct as incorrect polarity can affect the unit’s operation. If this power cord should become
damaged, a replacement power cord must be purchased from the manufacturer or a qualified ENVIRO dealer. 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 184 watts (600 watts peak).

GLASS: Do not abuse the glass by striking or slamming the door. Do not attempt to operate the stove with
broken glass. The stove uses ceramic glass. Replacement glass must be purchased from an ENVIRO dealer. Do
not attempt to open the door and clean the glass while the unit is in operation or if glass is hot. To clean the
glass, use a soft cotton cloth and mild window cleaner, gas or wood stove glass cleaner, or take a damp paper
towel and dip into the fly ash. This is a very mild abrasive and will not damage the glass.

FLAMMABLE LIQUIDS: Never use gasoline, gasoline-type lantern fuel, kerosene, charcoal lighter fluid, or
similar liquids to start or “freshen up” a fire in the heater. Keep all such liquids well away from the heater while
it is in use.

SMOKE DETECTOR: Smoke detectors should be installed and maintained in the structure when installing and
operating a pellet burning appliance.

OPERATION: The ash pan and door must be closed securely for proper and safe operation of the pellet stove.
Also ensure all gaskets on the door are checked and replaced when necessary.

KEEP ASH PAN FREE OF RAW FUEL.

Do not place unburned fuel or new fuel in ash pan. A fire in the ash pan may occur.
INSTALLATION: Be sure to maintain the structural integrity of your home when passing a vent through walls,

ceilings, or roofs. It is recommended that the unit be secured into its position in order to avoid any displacement.
DO NOT INSTALL A FLUE DAMPER IN THE EXHAUST VENTING SYSTEM OF THIS UNIT.
DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVING ANOTHER APPLIANCE.
FRESH AIR: Outside Fresh Air connection is optional. Must be connected to all units installed in Mobile and “Air

Tight Homes” (R2000) or where required by local codes. Consider all large air moving devices when installing
your unit and provide fresh air accordingly. Limited air for combustion may result in poor performance, smoking
and other side effects of poor combustion.

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, SHERWOOD INDUSTRIES LTD. GRANTS NO WARRANTY IMPLIED OR STATED FOR THE
INSTALLATION OR MAINTENANCE OF YOUR STOVE. THEREFORE, SHERWOOD INDUSTRIES LTD.
ASSUMES NO RESPONSIBILITY FOR ANY CONSEQUENTIAL DAMAGE(S).

SAVE THIS INSTRUCTION MANUAL FOR FUTURE REFERENCE

6

Introduction

ratIng label locatIon:

The rating label is located on the back of the ash pan access cover.

pellet QualIty:

Pellet quality is important, please read the following:
Your Enviro pellet stove has been designed to burn wood pellets only. Do not use any other type of

fuel, as this will void any warranties stated in this manual.
The performance of your pellet stove is greatly affected by the type and quality of wood pellets

being burned. As the heat output of various quality wood pellets differs, so will the performance
and heat output of the pellet stove.
CAUTION: It is important to select and use only pellets that are dry and free of dirt or any impurities such as

high salt content. Dirty fuel will adversely affect the operation and performance of the unit and will void the
warranty. Pellet Fuel Industries (P. F. I.) has established standards for wood pellet manufacturers. We recommend
the use of pellets that meet or exceed these standards. Ask your dealer for a recommended pellet type.

P. F. I. PELLET STANDARDS:

Fines (fine particles)......1% maximum through a ⅛” screen

Bulk Density..................40 pound per cubic foot minimum

Size..............................¼” to 5/16” diameter ½ – 1½” long maximum

Ash Content..................1% maximum (Premium grade)

..................3% maximum (Standard grade)

Moisture Content...........8% maximum

Heat Content.................approximately 8200 BTU per pound minimum

ASH: The ash content of the fuel and operation of your stove will directly determine the frequency of cleaning.
The use of high ash fuels may result in the stove needing to be cleaned daily. A low ash fuel may allow longer
intervals between cleaning.

CLINKERING: [clinkers are silica (sand) or other impurities in the fuel that will form a hard mass during the
burning process]. This hard mass will block the air flow through the Burn Pot Liner and affect the performance
of the stove. Any fuel, even approved types, may tend to clinker. Check the Burn-Pot Liner daily to ensure
that the holes are not blocked with clinkers. If they become blocked, remove the liner (when the unit is cold)
and clean/scrape the clinkers out. Clean the holes with a small pointed object if required. Refer to the section
Routine Cleaning and Maintenance.

PELLET FEED RATES: Due to different fuel densities and sizes, pellet feed rates may vary. This may require
an adjustment to the slider damper setting or to the auger feed trim setting on low.

Since Sherwood Industries Ltd. has no control over the quality of pellets that you use, we assume no liability for
your choice in wood pellets.

Store pellets in a dry area at least 36” (1 m) away from the pellet stove.

7

Installation

DecIDIng Where to locate your pellet applIance:

1. Check the “Clearances to Combustibles” section for proper spacing.

2. Do not obtain combustion air from an attic, garage or any unventilated space.
Combustion air may be obtained from a ventilated crawlspace.

3. Do not install the stove in a bedroom.

4. You can vent the stove through an exterior wall behind the unit or connect it to an
existing masonry or metal wood stove chimney (must be lined if the chimney is over
6” (15 cm) diameter, or over 28 inches² (180 cm²) cross sectional area). An interior
vent can be used with approved pipe passing through the ceiling and roof.

5. Locate the stove in a large and open room that is centrally located in the house. This
will optimize heat circulation.

6. The power cord is 8 feet (2.43 m) long and may require a grounded extension cord to
reach the nearest electrical outlet.

7. Stove must sit on a non-combustible pad that extends six inches in front of the door
or the included hearth pad (50-3119).

unpackIng anD removIng pellet Stove from pallet

1. Start by removing the crating and unit bag, you will need a pry bar and hammer to remove the crating. A

sawzall can be used to cut the staples as well.

2. Loosen six screws securing Back Grill, once loose slide downwards and
remove.

Figure 1: Cabinet Side

Removal

3. Remove the six T-20 screws that fasten each cabinet side to the stove.
See Figure 1.

4. Remove the 2 lag bolts on each side that hold the stove to the pallet.
See Figure 2.

5. Remove the 1/4” bolts that secure the shipping brackets to the stove.
See Figure 3.

A

Figure 3: Shipping Bracket

Removal

8

Figure 2: Shipping Bracket

Removal

Installation

PART NUMBER

DESCRIPTION QTY.

12-14846-HP

HEARTH PAD

1

HEARTH PAD MOUNTING TAB

3

C-10187

SCREW 8-32 X .375IN PN HD TRX

3

SA-900760 P4 HEARTH PAD

aSSembly

1. First install the hearth pad if you plan on using it.
You will need to install the Hearth Pad Mounting
Tabs before installing the Hearth Pad. The Mounting
Tabs are installed by screwing one #8-32 T-20 screw
throught the Hearth Pad and into each Mounting Tab
(there are three total). See Figure 4a. You may have
to unscrew feet to raise unit up. Tilt the unit so it
is balancing on the back feet, slide the hearth pad
under the unit while making sure the side mounting
tabs are on the outside of the base flange. Once
holes are aligned secure with provided T-20 thread
rolling screws. See Figure 4b.

Figure 4a: Hearth Pad Tab Install

Figure 5: Cabinet Side Install

Figure 4b: Hearth Pad Install

2. Next install the Cabinet Sides. There are six
screws for mounting each cabinet side. Start by
installing screws at front top of the panels, Do not
fully tighten screws. Now get the back top screws
started. Now install the rest of the screws and
tighten them down. See Figure 5.

3. Now Install Ash Shelf and Louvers. Ash Shelf is
mounted using two T-20 thread roller screws. The
Louvers are installed by inserting into slots cut into
louver mounting brackets located above the door.
If properly aligned the louvers should catch on the
bracket tabs and sit at a 15 degree angle.

Figure 6: Louver and Ash Shelf Install

9

Installation

(122 cm)

clearanceS to combuStIbleS:

IMPORTANT: The P4 must have a Hearth Pad when installing the unit on a combustible floor. The included
hearth pad meet all the requirement of a proper hearth pad. If you do not use the included hearth pad a certified
non combustible Hearth Pad with a minimum R Value of at least 0.84 must be placed underneath the unit and
extend 7.25 inches in front of the unit measured from the glass. If the P4 is installed on carpet the use of a solid
non combustible Hearth Pad must be used under leveling legs.

B

C

D

A

E

Figure 7: Minimum Install Clearances

alcove clearanceS:

The unit may be installed in an alcove if desired.
These minimum clearances to combustibles must
be maintained at all times. Be sure to leave room
for servicing, routine cleaning, and maintenance.
These are inside dimensions.

These dimensions are minimum clearances but it is
recommended that you ensure sufficient room for servicing,
routine cleaning and maintenance.

A. Side wall to unit 6 inches (20 cm)
B. Back wall to unit 8 inches (20 cm)
C. Back wall to Chimney Connector 5 inches (13 cm)
D. Corner to unit 3 inches (7.5 cm)
E. Glass to Hearth Pad 7.25 inches (18.5 cm)

Minimum Alcove Width 48 inches (122 cm)
Minimum Alcove Height 48 inches (122 cm)
Minimum Alcove Depth 48 inches (122 cm)

10

48in

48in

(122 cm)

Figure 8: Minimum Alcove Clearances

(122 cm)

48in

Installation

vent termInatIon reQuIrementS:

IT IS RECOMMENDED THAT YOUR PELLET STOVE BE INSTALLED BY AN AUTHORIZED DEALER/INSTALLER.

Table 1: Use in conjunction with Figure 6 for allowable exterior vent termination locations.

Letter Minimum Clearance Description

A 24 in (61 cm) Above grass, top of plants, wood, or any other combustible materials.
B 48 in (122 cm) Beside/below any door or window that may be opened. (18” (46 cm) if outside

fresh air installed.)

C 12 in (30 cm) Above any door or window that may be opened. (9” (23 cm) if outside fresh air

installed.)

D 24 in (61 cm) To any adjacent building, fences and protruding parts of the structure.

E 24 in (61 cm) Below any eave or roof overhang

F 12 in (30 cm) To outside corner.
G 12 in (30 cm) To inside corner, combustible wall (vertical and horizontal terminations).
H 3 ft (91 cm) within a height

of 15 ft (4.5 m) above the

meter/regulator assembly
I 3 ft (91 cm) From any forced air intake of other appliance
J 12 in (30 cm) Clearance to non-mechanical air supply inlet to building, or the combustion air

K 24 in (61 cm) Clearance above roof line for vertical terminations.
L 7 ft (2.13 m) Clearance above paved sidewalk or paved driveway located on public property.

To each side of center line extended above natural gas or propane meter/
regulator assembly or mechanical vent.

inlet to any appliance.

1. Do not terminate the vent in any

enclosed or semi-enclosed areas
such as a carport, garage, attic,

G

K

crawlspace, narrow walkway,
closely fenced area, under a sun
deck or porch, or any location
that can build up a concentration
of fumes such as stairwells,
covered breezeway, etc.

2. Vent surfaces can become
hot enough to cause burns
if touched by children. Non­combustible shielding or guards
may be required.

B

D

Figure 9: Use in conjunction with Table 1 for allowable exterior vent termination

F

B

Termination Cap
Air Supply Inlet

Opens

Opens

A

Gas Meter

G

I

locations.

G

Restriction Zone

(Termination not allowed)

H

E

C

Opens

G

L

3. Termination must exhaust above
the inlet elevation. It is recommended that at least five feet of vertical pipe be installed outside when the appliance is
vented directly through a wall, to create some natural draft to prevent the possibility of smoke or odor during appliance
shut down or power failure. This will keep exhaust from causing a nuisance or hazard from exposing people or shrubs to
high temperatures. In any case, the safest and preferred venting method is to extend the vent through the roof vertically.

4. Distance from the bottom of the termination and grade is 12” (30 cm) minimum. This is conditional upon the plants and
nature of grade surface. The exhaust gases are hot enough to ignite grass, plants and shrubs located in the vicinity of
termination. The grade surface must not be lawn.

5. If the unit is incorrectly vented or the air to fuel mixture is out of balance, a slight discoloration of the exterior of the
house might occur. Since these factors are beyond the control of Sherwood Industries Ltd, we grant no guarantee against
such incidents.

NOTE: Venting terminals shall not be recessed into walls or siding.

11

Installation

outSIDe freSh aIr connectIon:

Outside fresh air is mandatory when installing this
unit in airtight homes (R2000) and mobile homes.

A Fresh-air intake is strongly recommended for all
installations. Failure to install a fresh air intake may

result in improper combustion as well as the unit smoking
during power failures.

When connecting to an outside fresh air source, do not use
plastic or combustible pipe. A 2” minimum (51 mm) ID
(inside diameter) steel, aluminum or copper pipe should
be used. It is recommended, when you are installing a
fresh air system, to keep the number of bends in the pipe
to a minimum.

exhauSt anD Intake locatIonS:

Outside

Wall

2" ID

(51 mm)

Figure 10: Outside Air Connection.

Optional

Elbow

11.045in

(28.05 cm)

4.144in
(10.53 cm)

2.842in

(7.21 cm)

EXHAUST

Base of unit to center of flue

13.044 in (331 mm)

Center of unit to center of flue 2.842 in (72.1 mm)
[at center of unit]

FRESH AIR INTAKE

Base of unit to center of intake 11.045 in (280.5 mm)
Center of unit to center of intake 4.144 in (53 mm)

IMPORTANT: When attaching the exhaust venting
system to the unit or when joining vent sections
three screws must be used at each joint. If vented
horizontally, joints shall be made gas tight with
aluminum foil duct tape.

13.044in

(33.13cm)

Figure 11: P4 Inlet and Outlet Location.

12

Installation

mobIle home InStallatIon:

● Secure the heater to the floor using the two

holes in the pedestal.

● Ensure the unit is electrically grounded to

the chassis of your home (permanently).

● Do not install in a room people sleep in.

● Outside fresh air is mandatory. Secure

outside air connections directly to fresh air
intake pipe and secure with three screws
evenly spaced.

CAUTION:

THE STRUCTURAL INTEGRITY OF

THE MANUFACTURED HOME FLOOR,
WALL AND CEILING/ROOF MUST BE
MAINTAINED.

ENVIRO P4

corner through Wall InStallatIon:

Minimum clearances must be maintained
for a corner installation as shown in
figure 13.

Hearth Pad

Flooring

Steel Frame

1

/4” Lag Bolts

Securely Fastened

Figure 12: Mobile home installation.

3" (75mm)

Ground Wire Directly

to Metal Chassis

Wall thimble

manufactured

by pellet vent

manufacturer.

3"

(75mm)

Figure 13: Corner Installation.

13

Installation

horIzontal exhauSt through Wall InStallatIon:

Vent installation: install vent at clearances specified by the vent manufacturer.

A chimney connector shall not pass through an attic or roof space, closet or similar concealed spaces, or a floor,
or ceiling. Where passage through a wall or partition of combustible construction is desired, the installation shall
conform to CAN/CSA-B365 Installation Code for Solid-Fuel-Burning Appliances and Equipment. Only use venting
of L or PL type with an inside diameter of 3 or 4 inches (7.6 or 10.1 cm).

1. Choose a location for your stove that

meets the requirements stated in this
manual and allows installation with the
least amount of interference to house
framing, plumbing, wiring, etc.

2. Install a non-combustible hearth pad

(where necessary).

8"

(20 cm)

Wall

thimble

12"

(30.5 cm)

3. Place the appliance 15” (37.5 cm) away

from the wall. If the stove is to be set
on a hearth pad, set the unit on it, and
adjust the leveling legs.

4. Locate the center of the exhaust pipe

on the stove. Extend that line to the
wall. Once you have located the center
point on the wall, refer to pellet vent
manufacturer installation instructions
for correct hole size and clearance to
combustibles.

5. Install the wall thimble as per the

instructions written on the thimble.
Maintain an effective vapour barrier in
accordance with local building codes.

6. Install a length of 3” (75 mm) or 4” (100

mm) vent pipe into the wall thimble.
The pipe should install easily into the
thimble.

7. Connect the exhaust vent pipe to the

exhaust pipe on the stove. Seal the
connection with high temperature
silicone.

6.5"

(16.5 cm)

Non-combustible

floor protection.

Figure 14: Straight through wall Installation.

Existing floor

(combustible)

Exhaust Tube

3" (75mm) or 4" (100mm) "PL" or "L" vent

45°

elbow

Wall Thimble

8. Push the stove straight back, leaving a

minimum of 4” (10 cm) clearance from
the back of the stove to the wall. Seal
the vent pipe to the thimble with high
temperature silicone.

9. The pipe must extend at least 12”

(30 cm) away from the building. If
necessary, bring another length of pipe
(PL type) to the outside of the home to
connect to the first section. Do not forget to place high temperature silicone around the pipe that passes
through the thimble.

14

45° Elbow with screen or

Fresh Air Intake Tube

High Temperature RTV

Silicone Required

Figure 15: Venting to use with straight through wall Installation.

Termination Cap

Installation

Clean out tee

10. Install a vertical pipe, or if all requirements for direct venting are met, install vent termination. The stainless

steel cap termination manufactured by the vent manufacturer is recommended. However, when the vent
terminates several feet above ground level and there are no trees, plants, etc. within several feet, a 45°
elbow can be used as termination. The elbow must be turned down to prevent rain from entering.

NOTE:

• It is recommended that horizontal through wall installations have 3 to 5 feet (91 to 152 cm) of vertical pipe in

the system to help naturally draft the unit in the event of extreme weather or a power outage.

• Some horizontal through wall installations may require a “T” and 3 to 5 feet (91 to 152 cm) of vertical pipe

outside the building to help draft the unit. This may be required if a proper burn cannot be maintained, after
the stove has been tested and the airflow set. This is due to the back pressure in the exhaust caused by airflow
around the structure.

• Follow vent manufacturer guidelines for installation of venting. High temp sealant must be used when connecting

vent pipe to the unit’s starter pipe. Improper seals at the vent joints may cause combustion by-products to leak
into the room where installed - seal as required.

through Wall vertIcal rISe horIzontal termInatIon InStallatIon - freeStanDIng:

A termination cap is always recommended for this type of install but a stainless steel termination hood or a 45°
elbow may be used in place of the cap.

Figure 16 is the recommended installation set up, venting length is negligible.
Figure 17 is the installation to use if there is a concrete or retaining wall in line with exhaust vent on a pellet

stove. The termination must be 12” (30 cm) from the outside wall and 12” (30 cm) above the ground.

Termination cap

90° elbow

Wall framing

Vertical section of vent pipe

Horizontal frame for thimble

Wall strap

Horizontal frame
for thimble

Wall thimble

90° elbow

Vertical section
of vent pipe

Termination cap

Wall framing

Concrete Wall

Figure 16: Venting horizontally with rise.

Clean out tee

Wall thimble

Figure 17: Venting with concrete wall behind unit .

15

InSIDe vertIcal InStallatIonS:

Installation

Rain Cap (ensure cap is

at least 3ft above the

roof at the lowest point)

Roof Flashing

Roof Rafter

Fire Stop with

Support Collar

Ceiling Joist

Vertical Vent Pipe

Clean Out Tee with

Pipe Adapter

NOTE: All vent sections must
maintain 3 inches (7.5 cm)
clearances to combustibles.

2 ft

(600 mm)

1. Choose a stove location that is ideal. See the
section “DeciDing Where to Locate your PeLLet
aPPLiance.”

2. Place a non-combustible hearth pad where
necessary.

3. Place the unit on the hearth pad (if installed on
a combustible surface) and space the unit in
a manner so when the pellet vent is installed
vertically, it will be 3” (7.5 cm) away from a
combustible wall.

4. Install the tee with clean out.

5. Install the pellet vent upward from there. When
you reach the ceiling, make sure that the vent
goes through the ceiling fire stop. Maintain a 3”
(7.5 cm) distance to combustibles and keep attic
insulation away from the vent pipe. Maintain an
effective vapor barrier.

6. Finally, extend the pellet vent to go through the
roof flashing.

7. Ensure that the rain cap is approximately 24”
(600 mm) above the roof.

Figure 18: Inside Vertical Installation.

outSIDe vertIcal InStallatIonS:

To accomplish a outside vertical pipe installation, follow
steps 1 through 5 in the “
FreestanDing” section and then finish it by performing
the following (refer to Figure 19).

1. Install a tee with clean out on the outside of the
house.

2. Install PL vent upward from the tee. Make sure
that you install support brackets to keep the vent
straight and secure.

3. Install ceiling thimble and secure the flashing as you
go through the roof.

4. Ensure that the rain cap is approximately 24” (600
mm) above the roof.

insiDe VerticaL instaLLations -

Rain cap

Flashing

24"

(61 cm)

3" (7.5 cm)

Clearance

4"

(10 cm)

Support
bracket

Tee with

cleanout

Type "PL"

vent

16

Figure 19: Outside Vertical Installation.

hearth mount InStallatIon:

Rain Cap

Steel Plate or Flashing

Flexible or

Steel Liner

Installation

Flue
Connector

Clean-out tee

Damper Removed

or Fastened Open

10" (25.4 cm) Mantel
Minimum 8" (20 cm)
from top of stove

Combustible FloorMasonry Fireplace

Figure 20: Freestanding hearth mount installation.

Rain cap

Min 7.25" (185 mm)

Optional Hearth

or Other

Floor Protection

Refer to Figures 20 and 21.

1. Install the hearth pad.

2. Lock the fireplace damper in the open
position.

3. Install a positive flue connector at the
fireplace dampers or seal the chimney
at the top.

4. Connect a tee to the exhaust pipe.

5. Install flexible stainless steel liner or
listed pellet vent to the top of the
chimney.

Storm collar

Existing masonry flue

Existing fireplace

Seal plate (cover plate)

Vent pipe (single wall
stainless flex pipe or
solid PL vent)

Flexible vent connector
(use this 5 foot [152cm]
section of pipe to vent
past fireplace damper or
small shelf)

Fireplace damper
location

Clean out tee

Figure 21: Freestanding hearth mount installation overview.

17

Installation

Remove jumper

wire and install

thermostat wires here.

thermoStat InStallatIon:

1. Install the wall thermostat in a location that
is not to close too the unit but will effectively
heat the desired area.

2. The Right Cabinet Side will need to be
removed to access the Control Board. There
are six T-20 screws that need to be removed
on the Right Cabinet Side before it can be
removed.

Figure 23: Control Board Cover Removal.

Figure 22: Cabinet Removal

3. Once the side has been removed you can remove
three T-20 screws securing the Control Board Cover.

4. Once the Control Board is out, you can easily
access the circuit board and will be able to attach
the thermostat wires to the thermostat connection
shown in Figure 24.

5. Use a small flat head screwdriver to tighten and
secure the wires. The wires should be run through
the plastic bushing located at the back of the stove,
opposite side from the power.

6. Reverse steps 1-5.

Figure 34: Thermostat wire placement.

18

DImenSIonS anD SpecIfIcatIonS:

Specifications

6.299

20.000

22.485

Weight (with full hopper): 275 lb (125 Kg)
Hopper Capacity: up to 82 lb (37 Kg)
Voltage: 110 - 120 V
Max Current: 4.1 Amps
Consumption on High: 3.1 lb/hr (1.4 Kg/hr)*
Consumption on Low: 1.3 lb/hr (0.6 Kg/hr)*
(Note: Consumption will vary with the type of

fuel used.)

21.297

36.513

25.348

21.978

26.254

DATE: 23/06/2015

UPDATED: ----/--/--

STOVE:

THIS DRAWING IS THE PROPERTY OF SHERWOOD INDUSTRIES LTD. AND MAY NOT BE COPIED, REPRODUCED, OR OTHERWISE DISCLOSED WITHOUT THE PRIOR APPROVAL OF SHERWOOD INDUSTRIES LTD.

P4

BY

--

BY

SHERWOOD INDUSTRIES LTD.

INTERNAL ASSEMBLY MANUAL

REVISION:

0.0

SHEET:

1 of 1

Figure 25: Dimensions of P4.

19

Operating Instructions

control boarD functIonS:

1. POWER BUTTON: This is the green button with the power symbol, it is used to turn
the unit on and off. When the power is on and the blue LED beside the button will be
illuminated. The LED will flash during the start-up cycle. Once start-up cycle is complete
the power LED will stay on.

2. AUTO BUTTON: Located below the Power button, when pressed this activates Auto or
“Comfort” mode. LED beside button will be illuminated when active.

3. THERMOSTAT BUTTON: Located below the Auto Button. This is for external thermostat
control. LED beside button will be illuminated when active.

4. ARROW BUTTONS: The Arrow Buttons are used to adjust heat level and trim settings.

START-UP: When the unit is turned on it will go into a start-up cycle while trying to light a

fire. During start-up you have no control over the settings. The Power LED will flash until
start-up is complete. You can adjust heat levels or toggle the different modes during start­up but these adjustments will not come into affect until the start-up cycle is complete.

MANUAL MODE: Once the start-up cycle is completed you will be in either Manual mode or

Auto mode. When in Manual mode the Power LED is illuminated and AUTO LED is not. Use
the Arrow buttons to adjust heat level from L1-L5.

AUTO MODE: Press the Auto button to activate Auto or “Comfort” mode. When activated the

Power and Auto LED’s will be illuminated. Use the Arrow buttons to adjust from C1-C9.
Each setting corresponds to a different temperature set point. The stove will automatically
adjust to hold this temperature. As the room temperature gets close to the set point the
fire will decrease in size. If room temperature is above the set point for a certain amount
of time the stove will shut down and go into Suspend mode.

SUSPEND MODE: Once a stove has gone into Suspend mode the fire will go out. This means

the room has heated up beyond the Auto set point. Once temperature in the room drops
below the Auto set point the stove start back up and run until the room gets
to hot once again. When in suspend mode the Auto LED will flash.

THERMOSTAT MODE: This can only be used in Manual mode, and is for external

thermostat control. A external thermostat can be wiring to the main control board. When activated the LED beside the
Thermostat Button will be illuminated.

FEED/COMBUSTION TRIM: To adjust the Feed Trim you must be in Manual mode heat level 1. Press the hidden button

located under the down arrow. The Display will then change from P (Program) to A (Auger) to C (Combustion) with a
two second delay between changes. When the display shows an A use the arrows to adjust the feed trim. To adjust the
combustion fan trim wait until the display shows C then use the arrows to adjust.

SERVICE INDICATOR: If you see the “S1” on the LED display this is a maintenance recommended indicator. The “S1”

will come on when your stove has run for so many hours. It is recommended that you contact your local dealer for
component inspection and servicing. Pellet stoves require regular maintenance to keep running efficiently.

Figure 26: Circuit Board

Control Panel Decal.

Auto

automatIc Safety featureS of your pellet Stove:

A. The stove will shut off if the fire unexpectedly goes out, once exhaust temperature drops below 120°F (49°C), you will

see an E3 code on the LED display.

B. The stove has a high temperature safety switch. If the temperature on the hopper reaches 200°F (93°C), the auger

will automatically stop and the stove will shut down. The LED display will show an E4 error code, see Troubleshooting
section. 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. This code can also be cause by leaving the hopper lid open, there is a magnetic safety
switch.

C) The unit is equipped with a vacuum switch to monitor the venting pressure; if it becomes blocked the vacuum switch

will turn off the auger and there will be an E2 error code on The LED Display.

20

Operating Instructions

operatIon your pellet Stove:

PRE-BURN INSTRUCTIONS: The burn pot liner holes must be clear and the liner installed properly against
the ignitor tube for proper operation. Check the hopper for enough pellets to start the unit.

DO NOT OPERATE THE UNIT WITH THE DOOR OR ASH PAN OPEN.

TO START: Press the Power button. The stove will turn on. The LED beside the Power button will flash to

indicate a start-up cycle. The Heat Level is shown on the LED display, you can change the Heat Level and mode
but these adjustments will not take affect until the start-up cycle is complete. If this is the first time the unit has

been started or the unit has run out of fuel, the auger will need to be primed. You may need restart the unit if
an E3 error occurs, to do this just press the Power button again. Once you see pellets start to drop the auger
is primed.

TO OPERATE: When a fire has been established, the Power LED will turn solid (after approximately 10 - 15
minutes) and the current settings will now take affect.

The convection blower (room air blower) will turn on once the start-up cycle is complete. The speed of this
blower is automatically controlled and is based off the heat level setting.

turnIng your pellet Stove off:

To turn off your Pellet stove just press the Power button. This will not shut off the stove instantly, it will
go intoa shut down cycle and take approximately 5 minutes for the fire to burn out. The fans will stay running

until the unit has cooled sufficiently.

NEVER unplug a unit that is running!

DO NOT unplug unit while Combustion fan is running.

Unplugging may cause smoke to be released into the home.

Damper Set-up:

DAMPER MUST BE SET AT TIME OF INSTALLATION. This is used to regulate the airflow through the pellet

stove, this is key to an efficient clean burn. See figure 27.
If the pellets being burnt are of poor quality there is a higher chance of clinker build up and over time the fire

may build up and overflow the burn pot. Poor quality pellets will require more primary air to help complete the
burn, the slider damper must be pulled out to compensate.
Pulling the slider damper out gives the fire more air. It is
crucial to make sure the burn pot is clean and that no holes
are blocked for proper combustion. It is recommended to get
the stove hot then set the damper at heat level 1, this is the
most sensitive setting.

There are two ways to set the damper. You can visually set

the damper if you have experience.

• A tall, lazy flame with dark orange tips requires more air –

Open slider (pull out) slightly.

• A short, brisk flame, like a blowtorch, has too much air –

Close slider (push in) slightly.

• If the flame is in the middle of these two characteristics

with a bright yellow/orange, active flame with no black tips
then the air is set for proper operation, refer to Figure 28.

Damper

Figure 27: Slider/Damper Adjustment

21

Operating Instructions

Hole

For less experienced installers or owners a magnehelic gauge can be used to determine the proper
Damper setting. A magnehelic gauge will accurately measure the pressure in your firebox. There is a
small hole on underneath the ash lip on the right side of the firebox front, see figure 29. You
want a reading of .10-.13 WC (25-32 Pa) depending on pellet quality.

The combustion exhaust blower is a variable speed blower controlled by heat level setting. This blower will
decrease the vacuum pressure inside the stove as the heat level output is decreased.

SPECIAL NOTES:
Pellet quality is a major factor in how the Pellet stove will operate. If the pellets have a high moisture

content or ash content the fire will be less efficient and has a higher possibility of the fire building up
and creating clinkers (hard silica ash build-up).

Overfiring should not occur if stove is operating properly, if stove looks like it is burning unusually high
turn off the unit with the power button, DO NOT unplug. There is a built in safety switch if unit gets too
hot from overfiring it will shut down automatically.

Figure 28: Efficient Flame.

Figure 29: Magnehelic Test Hole.

guIDelIneS for fIne-tunIng for fuel QualIty:

Due to fuel quality the damper and control board trims may need to be fine-tuned to achieve optimal conditions.
Trims are accessed by pressing hidden button below the down arrow when in L1.

1. If ash builds up in the unit on all settings, the slider damper rod should be pulled out in small increments to

give the unit more air.

2. If the unit has excesses ash build-up in the liner on the lower feed settings, the Combustion Blower Trim

should be increased one setting at a time until the problem improves (Factory Setting is #3).

3. If the fire is going out on low because the airflow is too great, the Combustion Blower Trim can be lowered

one setting at a time.

4. If the stove has excesses ash build-up in the liner on the higher settings the damper can be opened until the

problem improves.

5. If you need more heat and the fuel has long pellets, the majority are over 1” (2.5cm) in length, the Feed Rate

Trim can be increased.

22

Routine Cleaning and Maintenance

The following list of components should be inspected and maintained routinely to ensure that the appliance is
operating at its’ optimum and giving you excellent heat value:

2-3 Days / Weekly Semi-annually or 2 Tons of Fuel
Burn Pot and Liner Exhaust Vent
Heat Exchanger Tubes Air Intake
Ash Pan Blower Mechanisms
Door Glass Heat Exchanger Tubes
Inside Firebox Behind Firebox Liners & Covers
Ash Pan and Door Gaskets All Hinges
Door Latch Post Season Clean-up

Air Intake Tube

Burn Pot Liner

Ignitor Hole

Ignitor Tube

TOOLS REQUIRED TO CLEAN UNIT:
Torx T-20 Screwdriver,

Cloth, Vacuum with fine filter bag

5

/16” wrench or socket, Brush, Soft

Burn Pot

Figure 30: P4 Burn pot and Liner

BURNER POT AND LINER (2-3 days)
Every two to three days (when the unit is cold), remove the burn-pot liner from the stove. Using a metal scraper,

remove material that has accumulated or is clogging the liner’s holes. Then dispose of the scraped 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. Place the liner back into the burn-pot, making sure that the ignitor hole in
the liner is aligned with the ignitor tube (shown in Figure 30). Push the liner up against the ignitor tube.

If after long periods of burning, the fire continually builds up and overflows the burn pot or there is a build
up of clinkers, this is an indication that the pellet fuel quality is poor, the stove may need cleaning, or the air
adjusted. Check the stove for ash build up (clean if required) and adjust the damper to produce the proper clean
combustion.

heat exchanger tubeS (2-3 days)
A rod is located in the center of the stove just above the door behind the top louvers, see Figure 35. This rod

is to be pulled up and down 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. Do pull on rod
excessively if it is not sliding. If stuck inspect rod for bend and try and free up scraper plate from inside firebox.

ASH PAN AND DOOR GASKETS (weekly)
After extended use the gasket may come loose. To repair this, glue the gasket on using high-temperature

fiberglass gasket glue available from your local dealer. This is important to maintain an airtight assembly.

23

Routine Cleaning and Maintenance

Vacuum
Compartment

Empty
Ash Pan

Vacuum
Air Wash

DOOR GLASS CLEANING (2-3 days)
Cleaning of the glass must only be done when stove is cold. Open the door. The glass can be cleaned by

wiping down the outside and inside of the glass with a soft dry cloth.
If the glass has build up that can not be removed
with only the cloth, clean the glass using paper
towel and a gas appliance glass cleaner, this
may be purchased through most dealers. If a
gas appliance glass cleaner is not available, use

a damp paper towel dipped in y ash to clean

the glass. After the glass has been cleaned use
the dry soft cloth to wiping down the outside
and inside of the glass.

ASH PAN (weekly)
This part is located behind the bottom door. To

remove the ash pan, open the cover from the
right hand side, and lift the ash pan up and 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 “
disposal of ashes. Vacuum the inside of the ash
pan compartment inside the pedestal including
the hole at the top back of the compartment.
Replace the ash pan ,close the latch, and close
pedestal door. DO NOT PLACE UNBURNED

OR RAW PELLET FUEL IN ASH PAN.

saFety Warnings anD recommenDations” for

Figure 31: P4 Open

AIR INTAKE (semi-annually)
Inspect periodically to be sure that it is not clogged with any foreign materials.

EXHAUST PASSAGES (Semi-annually)

To prevent build up of fly-ash all the exhaust passages must be cleaned and vacuumed.

24

Routine Cleaning and Maintenance

heat exchanger tubeS (2-3 days)

• The heat exchanger tubes are located

behind the Louver assembly. To access Heat
Exchanger Scraper Rod, remove middle two
louvers by tipping up and pulling out.

• Pull out the Scraper Rod shown in Figure

32 in order to remove any fly ash that may
have collected on the heat exchanger tubes.
This will allow for optimal heat transfer to
convection air.

Scraper Rod

Figure 32: P4 Heat Exchanger Tubes

removal of fIrebox panelS

• Open the door, remove the door, burn pot
and burn pot liner.

• Lubricate all screws with penetrating oil.

• Remove the four screws that hold the side

panels in place.

• With the tip of a flat screwdriver, gently
lift up the side panels and remove the side
panels.

• Pull the center panel out.

• Vacuum thoroughly.

• Re-install panel by inserting center panel.

• Place the side panels back into the firebox

locking them into place and re-install the
two screws on each side.

• Clean thoroughly.

Note: Screws that secure left side panel
also secure hinge bracket which holds cast
door. Remove door before unscrewing.

Remove

Figure 33: P4 Firebox Panels

25

Routine Cleaning and Maintenance

FIREBOX (weekly)
The paint on the steel firebox panels may peel. This is due to extreme conditions applied to the paint and is in

no way covered by warranty. Brush and vacuum up all soot and flyash from firebox.

AIR WASH (semi-annually)
Vacuum out the air wash passages at the top of the glass (see Figure 33). We recommend that a soft brush

nozzle head is used on the vacuum.

EXHAUST VENT (semi-annually)
This vent should cleaned every year or after two tons of pellets. We recommend contacting your dealer for

professional cleaning. To clean 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. Failure to clean
exhaust venting can result in a serious creosote fire.

BLOWER MECHANISMS (semi-annually)
Unplug the stove then open the right and left side panels to access the two blowers. Vacuum all dust from

motors. DO NOT lubricate the motors. Check gaskets and replace if needed.

hIngeS

Check to make sure all hinges are working properly. You may use high temp anti-sieze on door hinges for
smoother operation.

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 thoroughly cleaned and serviced. Pellet should be regularly service for
optimum efficiency and prolonged life.

DOOR GLASS REPLACEMENT

Never run a stove with broken glass, new glass must be purchased and installed by a Enviro dealer. The door
glass is made of high temperature “PYROCERAM” ceramic glass. The proper glass size is 13” x 9.5” x 0.2”
(5mm). To replace the glass, unscrew and remove the seven retainer screws. Carefully remove the glass and
any broken pieces using protective gloves. High temperature fiberglass tape should be used around the glass
on the sides and bottom. Place glass with fiberglass tape around outside into cast door, there should be no
gasket at the top. Use the same retainers to secure the glass in place, make sure glass is properly seated in
the cast door before tightening screws. Do not strike or slam door shut this can cause glass to break. The use
of substitute glass materials is prohibited use only part 50-2942.

How can I reduce the visible emissions?

If all of the steps for cleaning and operating are followed, there should be no visible emissions.

26

Troubleshooting

DO NOT:

● Service the stove with wet hands. The stove is an electrical appliance, which may pose a shock hazard if

handled improperly. Only qualified technicians should deal with possible internal electrical failures.

● Do not remove any screws from the firebox without penetrating oil lubrication.

WHAT TO DO IF:

1. The stove will not start.

2. E2 on LED Display.

3. E3 on LED Display.

4. E4 on LED Display.

5. The Exhaust Blower will not function normally.

6. The Auger is not feeding pellets.

7. The Convection Blower will not function normally.

8. The Igniter not working.

9. Control settings (Heat Level) has no effect on the fire.

*NOTE: All troubleshooting procedures should be carried out by qualified technicians or installers.

1. The stove will not start.

• Make sure the stove is plugged in and the wall outlet is supplying 115-120V AC power.

• If the Control Board has been is set to Thermostat mode, turn the thermostat up to call for heat.

• Check the LED display for error codes. - If Display reads E2,E3, or E4 use Troubleshoot sections.

• Check the fuses on the circuit board.

• If the unit still does not start, contact your local service dealer for service.

2. E2 on LED Display (The Vacuum Switch contacts have opened for more than 1:00 min)

• Pinch, break or blockage in Vacuum Hose - Check hose for pinch points or damage, replace or re-route as
required. Blow out Vacuum Hose with compressed air.

• Blocked Hose Barb on Exhaust Channel - Use a paper clip to clean out Hose Barb or remove the Vacuum Hose
from the Vacuum Switch and blow into the hose to remove blockage.

• Blocked exhaust / venting system - Have stove and venting cleaned and inspected.

• Air Damper is closed or set to low - open damper slightly.

• Severe negative pressure in area where unit is installed - Check the operation by opening a window, does

this solve the problem? If it does, install fresh air intake to unit or room. Venting system may require vertical
section to move termination into a low pressure zone.

• Vacuum Switch failure - Bypass the vacuum switch, if this corrects the problem check for above problems
before replacing the Vacuum Switch.

• Damage to gray wires between Circuit Board and Vacuum Switch - Inspect wires and connectors

• Combustion Blower failure - If the Combustion Blower is not turning fast enough to generate the proper

vacuum in the Exhaust Channel. Visually Check if the blower motor is turning, check the Exhaust Blower
voltage across the blower wires (>=115V on #5 setting and >= 82V on #1 setting). – Replace the Circuit
Board if the Voltage reading is less than 82 V. with a line voltage >115 V AC.

• Check Vacuum levels in the exhaust channel by bypassing the vacuum switch, then remove the Vacuum hose
from Vacuum Switch. Check exhaust vacuum readings by placing the open end of the Vacuum Hose on a
Magnehelic Gauge. (readings must be above .09” WC on low fire).

• If the motor fails to reach a 0.09” WC readings, then replace the Combustion Blower

To reset Circuit Board after a trouble code - press Power button.

27

Troubleshooting

3. E3 on LED Display (Proof of Fire Failure)

• If a fire is not detected, or if the fire has gone out the display will read E3 because the exhaust temperature
is too low causing Exhaust Temperature Sensor’s contacts to open.

• Check the hopper for fuel. Auger may need to be primed if stove has run out of pellet or being fired for the
first time.

• Incorrect air damper setting. - Excessive air may consume the fire too quickly before the next drop of fuel,
leaving completely unburned fuel in the burn pot liner. - Insufficient air will cause build up, further restricting
the air flow through the Burn Pot Liner. This in turn will cause the fuel to burn cold and very slowly. Fuel
may build up and smother the fire. In this case clean the burn pot. (NOTE: unit may require a changes

to the vent system or installation of fresh air intake to correct Air to Fuel ratio problems).

• Combustion Blower failure. - The Combustion Blower is not turning fast enough to generate the proper
vacuum in the fire box. Visual Check – is the blower motor turning.

• Check the Exhaust Blower voltage across the blower wires (>=114V on #5 setting and >= 82V on #1
setting). – Replace the Circuit Board if the Voltage reading is less than 82 V. with a line voltage >114 V AC.

• Check Vacuum levels in the exhaust channel by bypassing the Vacuum Switch, then remove the Vacuum hose
from Vacuum Switch. Check exhaust vacuum readings by placing the open end of the Vacuum Hose on a
Magnehelic Gauge (readings must be above .10” WC on low fire).

• Poor Quality Fuel – Insufficient energy in the fuel to produce enough heat to keep the stove burning or
operational.

• Exhaust Temperature Sensor failure. – Bypass the sensor located on Exhaust Blower, if stove now operates
properly, the unit may require cleaning or a new sensor. Contact your local dealer for service.

• Check the fuse on the circuit board.

4. E4 on LED Display (High Limit or Lid Switch Failure)

• If unit has been running normally and you now have an E4 this could be a High Limit switch. This is a safety
feature, if the hopper gets to hot the unit will shut off. The High limit switch is located the right side of the
hopper near the bottom.

• If the high limit has tripped something is wrong with the unit, possibly a component failure or a hopper fire
has occurred.

• Slowly open the hopper lid, if you see and smoke at all keep it closed. A fire extinguisher or water can be
used to put out a fire.

• If there is no smoke the Hopper Lid switch may not be engaged or there has been a component failure. The
components will need to be tested, contact an Enviro dealer. The High limit switch is a manual reset switch
and a small red button on the back of the switch will need to be manually pressed in order for the unit be
started again.

• To check Hopper Lid switch make sure Hopper Lid is fully closed, If you think it is properly closed, open and
close the lid, you should hear an audible click form magnetic Hopper Lid switch located in control board area.

• If no click is heard check that magnet on underside of Hopper Lid is still magnetic. This is a strong magnet.

• If magnet is good, alignment is out or switch is bad.

• Test switch for audible click with another magnet, switch is right above LED Display on control board.

5. The Combustion Blower will not function normally.

• If the Combustion “Exhaust” Blower is not functioning properly the stove will most likely will give an E2 or
E3 error code.

• Check the wiring against the wiring diagram to make sure everything is connected properly.

• The fan can be directly hooked up to power to check motor.

NOTE: DO NOT attempt any electrical troubleshooting without knowledge of electrical systems,
make sure unit is not plugged in. It is recommended to call an authorized Enviro dealer or service
technician.

28

Troubleshooting

6. Auger is not Feeding Pellets.

• If this is the first time starting the unit or during the previous burn the unit ran out of pellets the Auger will
need to be primed. You may get an E3 while auger is filling with pellets, just press the power button again.
Once the Auger is full of pellets it will start dropping them into the burn pot.

• If Auger is primed and no pellets are dropping remove the Rear Grill to see Auger motor, you will see the
auger collar and set screw rotating if the Auger is operating properly.

• If the motor’s armature tries to spin but the auger shaft doesn’t then the auger is jammed. – Try to break
apart jam by poking at the jam through the drop tube. If this fails then empty the hopper and remove the
Auger Cover **Remember to re-seal the cover with silicone after clearing jam**

• Check the set screw locking the motor shaft to the auger shaft. This needs to be tightened to the flat on the
motor shaft for proper rotation.

• Check the fuses on the main circuit board.

7. The Convection Blower will not function normally.

• The Convection fan should come on when the unit is started. Speed is automatically controlled, the higher
the heat level the higher the convection fan voltage will be.

• Check Wiring against wiring diagram.

• AC wall voltage can be directly hooked up to fan to test motor.

• Check that blade spins with very little friction.

• Check fuses on main circuit board.

8. Ignitor not working

• If pellets are feeding and the combustion blower is working your stove should light a fire or at least start
smoking.

• Make sure the burn pot and burn pot liner are correctly installed square to the Ignitor and air tube.

• If stove errors out before lighting open door and carefully check to see it pellets around the Ignitor hole are

warm - If not remove ignitor and test, replace if it does not heat up.

• If the air damper is closed to much or Combustion Blower is not working the stove will not light.

• Check the fuses on the main circuit board.

9. Control settings (Heat Level) has no effect on the fire.

• If the LED beside the Power button is flashing the Control Board has complete control of the unit. This means
the unit is in start-up mode, once the start-up cycle is complete the light will go solid.

• If running in Auto or “Comfort mode” and the LED light beside the Auto button is flashing the unit is in
suspend mode because it has overshot the set point. Once temperature drops below the set point the stove
will turn back on.

29

Wiring Diagram

Optional

Exhaust Blower

Ribbon Cable

Exterior

Combustion

Blower

Thermostat

Connection

Supplied Armor Cable

Black

White

White

Blue Brown

Power

Cord

Chassis
Ground

115V

Black

115V

White

Grey
Grey

Red

White

Vacuum

Switch

Exhaust

Temperature

Switch

Brown

1

2A 2A 2A 2A 5A

5432

Ignitor

Black (Hot)
White (Common)

Orange
Orange
Purple
Blue
Yellow
Red

Grey
Grey
Brown
Brown

Fuses

1. Agitator

2. Convection Fan

3. Combustion Fan

4. Auger Motor

5. Ignitor

Magnetic Hopper

Purple
White

Orange
Orange

Switch

Yellow
White

Convection

Blower

Auger
Motor

High Limit

Switch

30

Parts List

Reference

Number

1 120 °F (49 °C) Ceramic Fan Temperature Sensor EC-001
2 Auger Motor - 115V EF-001
3 High Limit Temp Sensor 200°F (93°C) Manual Reset EF-016
4 Vacuum Switch - 115V EF-017
5 Silicone Hose EF-018
6 SS Ash Pan Latch 50-2588
7 Domestic Power Cord - 115V EC-042
8 400 Watt Ignitor - 115V 50-619

9 Exhaust Blower Assembly - 115V 50-901
10 Convection Blower - 115V (No Mount) 50-512
11 Leveling Legs (Set of 4) 50-1342
12 Hopper Switch (Magnetic) 50-2052
13 P4 Glass with Gasket 50-3116
14 LED Motherboard 50-2948
15 LED Daughterboard 50-2944
16 Control Decal 50-2948
17 Ash Pan with SS Latch 50-3117
18 Draft Slider 50-1579
19 Starter Pipe 3” 50-1185
20 Burn Pot EF5-128
21 Burn Pot Liner 20-054
22 Auger with Paddles Weldment 50-1085
23 Auger Stop Plate 50-3118
24 P4 Hearth Pad with Mounting Hardware 50-3119
25 P4 Cabinet Sides and Ash Shelf (Painted) 50-3120
26 P4 Cabinet Sides and Ash Shelf (Racing Red) 50-3121
27 P4 Cabinet Sides and Ash Shelf (Modern Grey) 50-3122
28 P4 Cast Top 50-3123
29 P4 Cast Hopper Lid 50-3124
30 P4 Cast Door Assembly 50-3125
31 P4 Firebox Panel Set with Insulation 50-3126
32 Top Cast Mount Plate 50-3127
33 Hopper Hinge Set (Left and Right) 50-3128
34 Top Cabinet Mount Set (2) 50-2955
35 Bottom Cabinet Mount Set (2) 50-2956
36 Door Hinge Weldment 50-2957
37 Louver Bracket Set (Left and Right) 50-3129
38 Louver Set 50-3130

Description

Part

Number

31

Parts List

Reference

Number

39 P4 Rear Cover 50-3131
40 Steel Door Latch 50-2961
41
42

Description

Ash Pan Access Door
Ash Pan Access Door Hinge Set (2)
Motherboard Mounting Bracket

44 Daughterboard Mount Box 50-3134
45 Heat Exchanger Scraper Rod 50-2966
46 Machined Door Latch Nut 50-2967

P4 Door Gasket 54” with Jont Tape 50-3135
Aluminum Hose Barb (Vacuum Line) EF-019
Auger Brass Bushings (Set of 2) 50-1806
Circuit Board 2 Amp Fuse - 115V (Single) 50-2075
Circuit Board 5 Amp Fuse - 115V (Pair) 50-833
5/8” ID Auger Collar with Screw 50-968
Wire Harness 50-1157
Auger Stops (Clear Tube) 50-1559
Burnpot Scraper Tool 50-1254
Cleaning Brush EF-156
Door Tool 50-2969
P4 User Manual 50-3036
25ft Extension Probe 50-3005

Part

Number

50-3132
50-3133
50-2964

32

33

32

Parts Diagram

39

19

25

44

23

1

29

28

37

35

45

36

18

38

41

24

17

20

34

21

42

46

31

40

P4 Steel Parts

30

33

13

Parts Diagram

16

15

12

22

2

9

8

6

11

4

1

3

7

14

10

P4 - COMPONENTS

34

Rating Label

C-14680

3” (76 mm)

6” (152 mm)

C

B

Backwall

A

C Corner to Unit (Du coin à l'appareil)

A Sidewall to Unit (Du mur de côté à l'appareil)

D From door opening of unit to edge of floor protection

(De la porte ouvrant au devant de protection de plancher) 6” (152 mm)

NOTE: A combustible floor must be protected by a non-

combustible material - Width 27" (686mm) by depth 34"

(864mm). (Un plancher combustible doit etre protege par un

materiel incombustible. La largeur 27" (686 mm) par la

profondeur 34" (864mm).)

Minimum Alcove Width (La largeur minimum de l'alcove) 48” (1219 mm)

Minimum Alcove Height (La hauteur minimum de l'alcove) 48” (1219 mm)

INSTALLED AS A FREESTANDING STOVE MODEL (FS) /

A INSTALLE COMME UN MODELE SUR PIED DE POELE

B Backwall to Unit (Du mur de derrière à l'appareil) 3” (76 mm)

Minimum clearances to combustible materials; conventional or mobile home./

Les dégagements minimums aux matériels combustibles; la maison

conventionnelle ou mobile.

Canada et aux Etats-Unis.

Certifié pour installation au

Certified for use in Canada & USA

Maximum Alcove Depth (La profondeur maximum de l'alcove) 48” (1219 mm)

Sidewall

ATTENTION:

Très chaud quand allumé. Ne

:

FABRIQUE PAR

VICTORIA BC CANADA

SHERWOOD INDUSTRIES LTD.

MANUFACTURED BY /

DATE DE FABRICATION:

D

Floor Protection

DATE OF MANUFACTURE /

J F M A M J J A S O N D 2015 2016 2017

ENVIRONMENTAL PROTECTION AGENCY US conforme aux normes 2015 d'émission de particules. Non approuvé

pour la vente après le 15 mai à 2020. Ce poêle à granulés besoins inspection périodique et la réparation pour un

fonctionnement correct. Consultez le manuel d'owner`s pour plus d'informations. Il est contre les règlements

fédéraux pour exploiter cette pastille chaue d'une manière incompatible avec les instructions de

touchez pas, les brûlures

sévères peuvent résulter. Tenez

loin des enfants, des vêtements,

des meubles,de l’essence ou

d’autres fluides produisant des

vapeurs inflammables.

Consultez le manuel avec les instructions

d’installation et d’opération.

fonctionnement dans le manuel d'owner`s. Ce poêle répond aux normes limites d'émission de l'Environmental

Protection Agency des États-Unis 2015 pour les unités de pellets vendus après le 15 mai 2015. Dans des

conditions de test spéciques, ce poêle a été montré pour avoir un niveau d'émission de particules de 1.3 g / h.

DO NOT REMOVE THIS LABEL

N'ENLEVEZ PAS CETTE ETIQUETTE

Operate this unit only with teh hopper lid closed. Failure to do so

may result in emssions of product of combustion from the

hopper under certain conditions. Maintain hopper seal in good

condition. Do not overfill the hopper.

LIGHTING INSTRUCTIONS:

- Press and release the green on / off button located under

hopper lid.

- Set the mode and heat output to the desired setting.

- Make sure to close Hopper Lid.

TO TURN THE UNIT OFF:

- Press the green on / off button, when off the -- will be displayed. (Refer to owners

manual for detailed instructions)

INSTRUCTIONS POUR L’ALLUMAGE:

- Presse et relaease le vert sur / de bouton situé sous la trémie couvercle.

- Une fois le feu a commence, a regle le production de chaleur au montage desire.

- Assurez-vous de fermer couvercle de trémie.

UL1482-1998 / ULC S627-00 /ULC S628-M93

SAMPLE

P4

POUR ETEINDRE L’UNITE:

Appuyez sur le vert bouton on / off, quand au large de la -- sera affiché.

(Referez-vous au guide de l’utilisateur pou un mode d’emploi detaille.)

CAUTION:

result. Keep children,

touch, severe burns may

Hot while operating. Do not

away.

See installation and operating

or other flammable vapors

clothing, furniture, gasoline

instructions accompanying appliance.

U.S. ENVIRONMENTAL PROTECTION AGENCY Certied to comply with 2015 particulate emission

standards. Not approved for sale after May 15, 2020. This pellet heater needs periodic inspec-

tion and repair for proper operation. Consult the owner`s manual for further information. It is

against federal regulations to operate this heater in a manner inconsistent with the operating

instructions in the owner`s manual. This heater meets the 2015 U.S. Environmental Protection

Agency’s pellet emission limits for pellet units sold after May 15, 2015. Under specic test

conditions this heater has been shown to have a particulate emission level of 1.3 g/hr.

ion. Do not overfill the hopper.

Utilisez cet appareil uniquement avec le couvercle de la trémie fermée. Ne

Input Rating (Les données évaluant): 8,200 to 23,000 BTU/Hr (2.4 to 6.7 kWh)

ENVIRO MODEL / MODELE ENVIRO:

For use with pelletized solid fuels only. Operate only with viewing door and ash removal door closed. Only replace glass with

ceramic glass. Components required for installation: a 3 inch (75 mm) or 4inches (100 mm) listed PL vent complete with

components. Hearth mount installations; a listed single wall chimney liner may be used.

Pour l'usage avec les combustibles sous forme de boulets uniquement. Fonctionner seulement avec la vue de porte et la

porte d'enlèvement de cendre ont fermé. Seulement remplacer le verre avec le verre de ceramique. Les composants ont

exigé pour l'installation : 3 pouce (75 mm) ou 4 pouce (100 mm) a énuméré le conduit de PL complète avec les composants.

Listed Room Heater, Pelletized Fuel Type (Appareil de chauffage à granules certifié)

Suitable For Mobile Home Installation (Accepté pour l'installation dans une maison mobile, test)

Conforms to (conforme à): ASTM E1509-12 Certified to (agréé):

This pellet appliance has been tested and listed for use in manufactured homes in accordance with Oregon Administration Rules

814-23-900 through 814-23-909. Install and use only in accordance with the Manufacture’s installation and operating instructions.

Contact local building or fire officials about restrictions and installation inspection in your area. Do not connect this unit to a chimney

flue serving another appliance. See local building codes and manufacturers instructions for precautions required for passing a chimney

through a combustible wall or ceiling. Electrical rating: 120 volts, 60 hz, 3.3 Amps. Route cord away from the heater / Cet appareil a

été testé et certifié pour utilisation dans les maisons mobiles en accord avec les "Règles Administratives de l'Oregon 814-23-900 à

814-23-909". Installez et utilisez cet appareil seulement selon les instructions d'installation et d'opération du fabricant. Contactez les

autorités locales de votre quartier concernant les restrictions et les inspections d'installation. Consultez les codes de bâtiment locaux et

les instructions du fabricant pour les précautions à prendre lorsque une cheminée doit être installée au travers un mur ou un plafond

combustible. CLASSEMENT ÉLECTRIQUE : 120 Volts, 60 Hz, 3.3 Amps. Placez le câble électrique loin de la chaleur.

Les installations de mont de foyer ; un paquebot de cheminée de mur de seul énuméré peut être utilisé.

Sides Removed.

ATTENTION: Pièces en mouvement peut causer des blessures. Ne pas l'appareil avec grille arrière

supprimé ou Sides Cabinet supprimé.

CAUTION: Hot Parts. Do Not Operate With Rear Grill Removed or Cabinet Sides

ATTENION: Les pièces chaudes. Ne pas utiliser avec grille arrière supprimé ou Sides.

manual for Electrical and Wiring Connection Diagrams.

DANGER: Risque de choc électrique. Débrancher l'alimentation avant l'entretien.

DANGER: Risk of Electric Shock. Disconnect Power Before Servicing. Refer to Owners

Reportez-vous au manuel Propriétaires de Schémas de raccordement électrique et de

câblage

CAUTION: Operate this unit only with the hopper lid closed. Failure to do so may result in

emssions of product of combustion from the hopper under certain conditions

pas le faire peut entraîner emssions de produit de la combustion de la trémie sous

certaines conditions maintiennent joint trémie en bon état. Ne pas trop remplir la trémie.

ATTENTION:

maintain hopper seal in good condit

CAUTION: Moving Parts May Cause Injury. Do Not Operate Unit With Rear Grill Removed or Cabinet

35

36

Installation Data Sheet

The following information must be recorded by the installer for warranty purposes and future reference.

NAME OF OWNER:

_________________________________________

ADDRESS:
_________________________________________
_________________________________________
_________________________________________

PHONE:___________________________________

MODEL:___________________________________

NAME OF DEALER:

_________________________________________

ADDRESS:
_________________________________________
_________________________________________
_________________________________________

PHONE:___________________________________

NAME OF INSTALLER:

SERIAL NUMBER:___________________________
DATE OF PURCHASE: _____________ (dd/mm/yyyy)
DATE OF INSTALLATION:___________(dd/mm/yyyy)
MAGNEHELIC AT INSTALL:___________________
INSTALLER’S SIGNATURE:

_________________________________________

_________________________________________

ADDRESS:
_________________________________________
_________________________________________
_________________________________________

PHONE:___________________________________

37

Notes

38

Notes

39

Notes

6782 OLDFIELD RD. SAANICHTON, BC, CANADA V8M 2A3

40

MANUFACTURED BY:

SHERWOOD INDUSTRIES LTD.

www.enviro.com

July 28, 2015

C-14675