Enviro EF2, EF2i, EF3Bi, EF4i, EF5-DIAL-A-FIRE Service Manual
...
FOR INSTALLERS AND SERVICE TECHNICIANS ONLY.
PELLET
PELLET
STOVE
STOVE
SERVICE
SERVICE
MANUAL
MANUAL
Sherwood Industries Ltd. Duplication of this document is prohibited. All rights reserved.
POP-093
Table of Contents
Introduction......................................................................................................................................4
Stove Specifications...........................................................................................................................5
Stove Controls...................................................................................................................................8
Timer Control Panel:.....................................................................................................................8
Circuit Board Control Panel - DHC 2000..........................................................................................9
Control Board Functions - DHC 4000 & 4100................................................................................10
Control Board Functions - DHC 4110............................................................................................11
Control Board Functions - Omega................................................................................................12
Control Board Functions - Daughter Generation I..........................................................................14
Control Board Functions - Daughter Generation II.........................................................................15
Control Board Lights - DHC 2000.................................................................................................15
Circuit Board Set-Up - DHC 2000.................................................................................................16
Circuit Board Set-Up - DHC 3000.................................................................................................17
Circuit Board Set-Up - DHC 4000.................................................................................................18
Circuit Board Pin Set-Up - Daughter Board...................................................................................18
Stove Operation - Timer Control........................................................................................................19
Start-Up Sequence.....................................................................................................................19
Shut Down.................................................................................................................................19
Stove Operation - Circuit Board.........................................................................................................20
DHC 2000 Start-Up Sequence (15 Minutes) - Manual Mode, Factory Setting....................................20
DHC 2000 Normal Operation - Manual Mode, Factory Setting.........................................................20
DHC 2000 Shut Down - Manual Mode, Factory Setting...................................................................20
DHC 2000 Start-Up Sequence (15 Minutes) - HIGH/LOW Mode, With Thermostat or Wall Switch......21
DHC 2000 Normal Operation - HIGH/LOW Mode, With Thermostat or Wall Switch...........................21
DHC 2000 Shut Down - HIGH/LOW Mode, With Thermostat or Wall Switch.....................................22
DHC 2000 Start-Up Sequence (15 Minutes) - ON/OFF Mode, With Thermostat or Wall Switch..........22
DHC 2000 Normal Operation - ON/OFF Mode, With Thermostat or Wall Switch...............................23
DHC 2000 Shut Down - ON/OFF Mode, With Thermostat or Wall Switch.........................................23
DHC 4100 Start-Up Sequence (15 Minutes) - Manual Mode, Factory Setting....................................24
DHC 4100 Normal Operation - Manual Mode, Factory Setting:........................................................24
DHC 4100 Shut Down - Manual Mode, Factory Setting: ................................................................24
DHC 4100 Start-Up Sequence (15 Minutes) - HIGH/LOW Mode, With Thermostat or Wall Switch......25
DHC 4100 Normal Operation - HIGH/LOW Mode, With Thermostat or Wall Switch...........................25
DHC 4100 Shut Down - HIGH/LOW Mode, With Thermostat or Wall Switch....................................26
DHC 4100 Start-Up Sequence (15 Minutes) - AUTO/OFF Mode, With Thermostat or Wall Switch......26
DHC 4100 Normal Operation - AUTO/OFF Mode, With Thermostat or Wall Switch...........................27
DHC 4100 Shut Down - AUTO/OFF Mode, With Thermostat or Wall Switch.....................................27
DHC 4110 Start-Up Sequence (15 Minutes) - Manual Mode, Factory Setting....................................28
DHC 4110 Normal Operation - Manual Mode, Factory Setting.........................................................28
DHC 4110 Shut Down - Manual Mode, Factory Setting..................................................................28
DHC 4110 Start-Up Sequence (15 Minutes) - HIGH/LOW Mode, With Thermostat or Wall Switch.....28
DHC 4110 Normal Operation - HIGH/LOW Mode, With Thermostat or Wall Switch..........................29
DHC 4110 Shut Down - HIGH/LOW Mode, With Thermostat or Wall Switch....................................29
DHC 4110 Start-Up Sequence (15 Minutes) - AUTO/OFF Mode, With Thermostat or Wall Switch......29
DHC 4110 Normal Operation - AUTO/OFF Mode, With Thermostat or Wall Switc.h..........................30
DHC 4110 Shut Down - AUTO/OFF Mode, With Thermostat or Wall Switch.....................................30
DHC 4100 Program Operation Descriptions..................................................................................30
DHC 4110 Program Operation Descriptions..................................................................................31
The How To’s For Troubleshooting.....................................................................................................32
Suggested Tools List...................................................................................................................32
Troubleshooting Warnings...........................................................................................................32
How To By-Pass The Dial-A-Fire...................................................................................................33
How To By-Pass The Start-up Switch...........................................................................................33
How To By-Pass The Fan Controller..............................................................................................34
2
Table of Contents
How To By-Pass The 200°F Manual Reset.....................................................................................34
How To Lubricate The Convection Blower.....................................................................................35
How To Remove The Convection Blower.......................................................................................35
How To By-Pass The 160°F Fan Sensor.........................................................................................36
How To By-Pass The Vacuum Switch............................................................................................36
How To Remove The Exhaust Blower Motor..................................................................................37
How To By-Pass Exhaust Temperature Sensor/Switch...................................................................37
How To By-Pass The 120°F Ignitor Temperature Sensor/Switch.....................................................38
How To Measure Resistance Across The Dial-A-Fire.......................................................................38
How To Apply Direct Power To The Auger Motor............................................................................39
How To Measure The Exhaust Blower Voltage..............................................................................39
How To Measure The Vacuum Level Produced By The Exhaust Blower............................................40
How To Change Program on DHC 4100........................................................................................40
How To Start Up Cycle Bypass on DHC 4100................................................................................40
Troubleshooting...............................................................................................................................41
The Stove Will Not Start.............................................................................................................41
The Stove Will Not Operate When Hot.........................................................................................42
The 200°F (93°C) High Limit Temperature Sensor Has Tripped......................................................44
The Convection Blower Will Not Function Normally.......................................................................44
The Combustion (Exhaust) Motor Will Not Function Normally.........................................................45
The Auger Motor Will Not Function Normally................................................................................46
The Dial-a-re Has No Effect On The Fire - Timer Control Only......................................................47
The Auger Timer Will Not Function Normally - Timer Control Only..................................................48
The Ignitor Will Not Work...........................................................................................................48
The Stove Will Not Shut Off........................................................................................................49
Control Settings (Heat Level) Have No Effect On The Fire - Circuit Board Only................................49
Circuit Board Fuses....................................................................................................................50
The Auger Light Flashes But The Auger Does Not Turn At All.........................................................51
The Stove Keeps Going Out.........................................................................................................51
The Auger Light Flashes But The Auger Does Not Turn At All.........................................................52
Light #2 On Heat Output Bar Flashing - Circuit Board Only............................................................52
Light #3 On Heat Output Bar Flashing - Circuit Board Only............................................................53
Flash Codes on DHC 4100...........................................................................................................54
Flame Characteristics........................................................................................................................55
Wiring Diagram................................................................................................................................56
EF2 Timer Control......................................................................................................................56
EF3 Timer Control......................................................................................................................57
EF2, EF3, & EF4 Timer Control With Thermostat Interface.............................................................58
EF4...........................................................................................................................................59
EF5 (Evolution) - Timer Control...................................................................................................60
EF5 (Evolution) & Mini - DHC 2000..............................................................................................61
Meridian Circuit Board - DHC 2000..............................................................................................62
Empress FS - DHC 2000..............................................................................................................63
EF5 (Evolution), Mini, & Empress FS - DHC 3000, 4000, & 4100...................................................64
Meridian - DHC 3000, 4000, & 4100............................................................................................65
Empress FPI & Milan..................................................................................................................66
Windsor.....................................................................................................................................67
Maxx.........................................................................................................................................68
M55-FS - DHC 4110...................................................................................................................69
Omega......................................................................................................................................70
Components Of A Pellet Stove...........................................................................................................71
Glossary..........................................................................................................................................73
Warranty.........................................................................................................................................74
3
Introduction
This is a service guide designed by SHERWOOD INDUSTRIES LTD.
We hope this manual will assist you to identify and correct operational concerns you might experience in
all ENVIRO pellet stoves.
This service guide is designed for SERVICE TECHNICIANS AND INSTALLERS ONLY, as a certain level of
technical understanding is required.
This guide is not designed for use by the homeowner.
If after using this service manual and following our recommendations, the problem still exists, dealers
should contact their distributor for technical assistance.
Technical Division
Sherwood Industries Ltd.
4
Stove Specifications
Fire
Magnehelic
reading on Low
High Fire
reading on
Magnehelic
Wave Wattage
RECOMMENDED Min.
Continuous Pure Sine
Table 1: Stove Specifications For Amperage, Wattages, And Magnehelic Readings.
MODEL AMPERAGE WATTAGE
EF2 3.9 Amp 450W 600W .12 - .13 .09 - .10
EF2i 3.9 Amp 450W 600W .12 - .13 .09 - .10
EF3Bi 4.5 Amp 520W 600W .12 - .13 .09 - .10
EF4i 4.5 Amp 520W 600W .11 - .12 .08 - .09
EF5-DIAL-A-FIRE 4.7 Amp 540W 600W .11 - .12 .08 - .09
EF5-CIRCUIT BOARD 4.7 Amp 540W 600W .10 - .11 .08 - .09
EMPRESS FS 4.1 Amp 500W 600W .10 - .11 .08 - .09
MERIDIAN 4.6 Amp 520W 600W .11 - .12 .08 - .09
MINI 4.1 Amp 500W 600W .11 - .12 .08 - .09
WINDSOR (50-511 kit) 5.0 Amp 575W 600W .11 - .12 .08 - .09
EMPRESS FPI 4.7 Amp 540W 600W .12 - .13 .09 - .10
MILAN FPI 4.7 Amp 540W 600W .12 - .13 .09 - .10
WINDSOR (50-994 kit) 5.0 Amp 575W 600W .18 - .20 .14 - .16
MAXX 6.0 Amp 720W 850W .14 - .16 .11 - .13
OMEGA 6.0 Amp 720W 850W .14 - .16 .11 - .13
5
Stove Specifications
EF5-CIRCUIT BOARD 76V 83V 90V 97V Line V 80V 87V 97V 103V Line V 180 C.F.M.
OMEGA 87V 95V 103V 108V Line V 87V 96V 103V 110V Line V 200 C.F.M.
MAXX 78V 93V 99V 104V Line V 0 84V 91V 97V Line V 455 C.F.M.
WINDSOR 76V 83V 90V 97V Line V 79V 85V 90V 97V Line V 180 C.F.M.
EMPRESS FPI 76V 83V 90V 97V Line V 64V 70V 77V 84V Line V 150 C.F.M.
MINI 76V 83V 90V 97V Line V 82V 88V 95V 101V Line V 105 C.F.M.
MERIDIAN 76V 83V 90V 97V Line V 78V 84V 90V 96V Line V 160 C.F.M.
EMPRESS FS 76V 83V 90V 97V Line V 75V 82V 89V 94V Line V 110 C.F.M.
EF5-DIAL-A-FIRE 69V VARIABLE Line V 69V VARIABLE Line V 180 C.F.M.
EF4i 69V VARIABLE Line V 69V VARIABLE Line V 150 C.F.M.
EF3Bi Line V Line V Line V Line V Line V 69V VARIABLE Line V 160 C.F.M.
EF2i Line V Line V Line V Line V Line V 69V VARIABLE Line V 160 C.F.M.
EF2 Line V Line V Line V Line V Line V 69V VARIABLE Line V 160 C.F.M.
MODEL
1 2 3 4 5 1 2 3 4 5
C.B. COMBUSTION BLOWER
VOLTAGE 1 - 5
VOLTAGE TOLERANCE +/- 3 VOLTS
C.B CONVECTION BLWR VOLTAGE
1 - 5
Table 2: Stove Specifications For Voltages, And C.F.M.
6
BLOWER C.F.M.
CONVECTION
Stove Specifications
Table 3: Auger Feed Rates and ON/OFF Times.
MODEL HEAT
LEVEL
FEED RATE /sec.
(Green lite to Green lite)
GREEN LITE /sec.
Off time On time
EF2/3
ALL CIRCUIT
BOARD
MODELS
(excluding
Maxx, Omega)
MAXX
A - MODE
B - MODE
Low Blue 15.3 - 16.4 12.3 - 13.4 3.0
High Red 4.2 - 4.4 1.2 - 1.4 3.0
1
2
3
4
5
1
2
3
4
70,000 BTU
5
1
2
3
4
60,000 BTU
5
11.5 8.5 3.0
9.06 6.06 3.0
7.07 4.07 3.0
5.09 2.09 3.0
4.07 1.07 3.0
21.0 18.0 3.0
12.0 9.0 3.0
8.0 5.0 3.0
5.5 2.5 3.0
4.5 1.5 3.0
22.0 19.0 3.0
12.0 9.0 3.0
8.0 5.0 3.0
6.0 3.0 3.0
5.0 2.0 3.0
OMEGA
C - MODE
50,000 BTU
PELLET
MULTI FUEL
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
24.0 21.0 3.0
12.0 9.0 3.0
8.5 5.5 3.0
6.5 3.5 3.0
5.5 2.5 3.0
28.0 25.0 3.0
15.0 12.0 3.0
10.0 7.0 3.0
7.0 4.0 3.0
5.0 2.0 3.0
28.0 25.0 3.0
19.0 16.0 3.0
13.0 10.0 3.0
10.0 7.0 3.0
8.0 5.0 3.0
7
Timer ConTrol Panel:
1
2
3
4
1
2
3
4
Stove Controls
Figure 1: Dial-A-Fire control panel EF3, EF4, & EF5.
1. CONVECTION BLOWER SPEED CONTROL (KNOB A): By adjusting the knob you will vary the
rate of airflow into the room by varying the speed of the convection blower. When you first start the
stove, it should be placed in the “OFF” position in order to heat the unit as quickly as possible. Once
the room has come up to temperature, the control may be set to a comfortable level.
2. AUGER LIGHT: For the EF3/4/5 the flashing green light corresponds to the auger feed rate. For the
EF2 it indicates unit is hot – switch unit to auto
3. START-UP SWITCH: For the EF3/4/5 it switches the power “ON” by pushing the start-up switch
once only. For the EF2 manually start the unit – then switch to auto when green light comes on. This
allows the unit to shut off when the re goes out.
4. Dial-a-fire HEAT OUTPUT (KNOB B): This knob controls the amount of heat output. The dial
has a scale with the blue zone representing the coolest setting of the stove, and the red zone
representing the hottest setting. The scale on knob “B” represents a range, not exact at times or fuel
quantities. Wood pellets of differing quality may affect the performance of the stove. If the stove
has trouble operating at either end of its range, turn the heat output knob turn heat output knob up
or down slightly. SPECIAL NOTES: The scale on the Dial-a-fire knob represents a range, not exact
times.
Figure 2: Dial-A-Fire control panel EF2.
8
1
3
4
5
6
7
8
2
Stove Controls
1
2
3
5
6
7
8
9
4
CirCuiT Board ConTrol Panel - dHC 2000:
1. AUGER TRIM: Used to change feed rates on LOW ONLY for poorer quality fuels. Push the Auger Trim
button until the number 1 and 5 lights appear on the Heat Level Indicator. This will increase the feed
rate to 4 seconds ON time Auger pulse. This
is done only on LOW to allow the burning
of poor quality fuels. Push the button until
the number 1 and 4 lights appear, this will
reduce the Auger On time to 2 second. This
4
setting is for high-grade fuel only. Push
the button until just the number 1 light is
on, this is for a three (3) second on time
1 1 1
(standard setting).
2. CONVECTION BLOWER CONTROL: Used
Figure 3: DHC 2000 Auger Trim And Heat Level Indicator.
to turn the convection blower ON/OFF. Press this switch to turn the convection blower OFF. Leave the
convection blower ON for peak efficiency. DHC 2000 - If the blower is left off, and the sensor located
on the air jacket reaches 160°F (71°C), the convection blower will automatically come on HI speed
to cool the unit. Press again to turn the blower on to the preset speed that corresponds to the heat
level.
3. AUGER PULSE LIGHT: This light will flash in conjunction with the auger.
4. MANUAL AUGER FEED: If the unit runs out of fuel, this button can be used to “prime the auger
system”. This button will turn off after 60 seconds and then must be released and pressed again. The
auger returns to automatic when the switch is released.
Auger Trim
2 Seconds
"ON"
Auger Trim Auger Trim
5
3 Seconds
"ON"
Factory Setting
4 Seconds
"ON"
5. SYSTEM LIGHT: Responsible for signaling the state of the control board. When the light is flashing
during start-up, the stove is in an automatic start mode. When the light is solid, the Heat Level Setting
can be altered.
Figure 4: DHC 2000 Circuit Board Control
Panel.
Figure 5: DHC 3000 Circuit Board Control
Panel.
9
ROOM AIR
FAN ON/OFF
ON/OFF
FEED RATE
TRIM
COMBUSTION
BLOWER TRIM
HEAT LEVEL
AUTO/OFF
HIGH/LOW
MANUAL
AUGER
C-11625
MODE
Stove Controls
6. ON/OFF BUTTON: Used to turn the unit ON and OFF. Push this switch to start or stop the unit when
the unit is operating in manual or HIGH/LOW thermostat mode (ON/OFF is automatic once the stove
has been started once).
7. HEAT LEVEL ADJUSTMENT: When pressed, will change the heat setting of the unit from low to
high.
8. HEAT OUTPUT INDICATOR: Shows the present heat output setting.
9. THERMOSTAT SWITCH (DHC 3000): Used to set the unit’s controls to one of three mode settings;
manual, high/low, or auto/off.
ConTrol Board FunCTions - dHC 4000 & 4100:
1. AUGER LIGHT: This green light will flash in conjunction with the auger pulse.
2. MODE LIGHT: Responsible for signaling the state of the control board. When the light is flashing the
stove is in an automatic start mode or the thermostat has control of the unit. When the light is solid,
the Heat Level Setting can be altered.
3. THERMOSTAT SWITCH: Used to set the unit’s controls to one of three mode settings; manual,
high/low, or auto/off.
4. FEED RATE TRIM BUTTON: Used to change the feed rate trims in ¼ second increments for all feed
settings. When this button is pressed, all the lights will light up on the Heat Output Indicator except for
the one that shows the current setting; the default
setting is the number 4 light. To adjust the setting
hold the Feed Rate Trim button down and press the
Heat Level up or down buttons to adjust the setting.
5. COMBUSTION BLOWER TRIM BUTTON: Used
to change the Combustion Blower trims in 5 volt
increments for all feed settings until it reaches line
voltage. When this button is pressed, all the lights
will light up on the Heat Output Indicator except for
the one that shows the current setting; the default
setting is the number 2 light. To adjust the setting
hold the Combustion Blower Trim button down and
press the Heat Level up or down buttons to adjust
the setting.
6. ON/OFF BUTTON: Used to turn the unit ON and
OFF.
7. ROOM AIR FAN ON/OFF BUTTON: Used to turn
convection fan on or off. This button is inactive is
some programs.
8. HEAT LEVEL ADJUSTMENT BUTTONS: When
pressed, will change the heat level setting of the unit
up or down.
9. HEAT OUTPUT INDICATOR: Shows the present
heat output setting. The bottom is position #1 and
the top is #5
AUGER
MODE
9
AUTO/OFF
HIGH/LOW
MANUAL
8
HEAT LEVEL
7
ROOM AIR
FAN ON/OFF
Figure 6: DHC 4000 & 4100 Circuit Board
Control Panels.
FEED RATE
TRIM
COMBUSTION
BLOWER TRIM
ON/OFF
C-11625
1
2
3
4
5
6
10
Stove Controls
ConTrol Board FunCTions - dHC 4110:
1. ON/OFF BUTTON: Used to turn the unit ON and OFF manually.
2. COMBUSTION AIR TRIM BUTTON: Increases or Decreases the Fan voltage by 2.5volts on all feed
settings. When pressed all lights on Heat Level Indicator will come on except the one that is the set
point. Hold Trim Button down and press the UP or DOWN Heat Level Arrow to adjust setting. #3 Light
is the default setting.
Depending on Fuel quality Ignition problems may occur at higher altitudes, this can be resolved by
trimming the Combustion Fan to a higher setting.
3. FUEL TYPE BUTTON: Used to switch between fuel type modes; Pellet (for all qualities of wood
pellets) and Multifuel (for all fuels including wood pellets). When set on Multifuel it will run at a
reduced High Feed Rate with wood pellets.
NOTE: Fuel Type can only be changed when the
unit is cold.
4. THERMOSTAT SWITCH: Sets the unit’s control
mode; AUTO/OFF or HIGH/LOW (when using a
Thermostat or Timer) or MANUAL.
5. FUEL TYPE LIGHTS: Shows the present Fuel Type
selected; Premium Pellets are Red, Regular Pellets
are Green, and Multi-fuel is Yellow. The Light
ashes during start-up, and when the Thermostat
is in control of the Unit. The Light stops ashing
when the Exhaust Sensor closes.
5
4
6
3
2
1
Premiu m Pellets
Regula r Pellets
Multi- Fuel
OPERATION MODE
AUTO/OFF
HIGH/LOW
MANUAL
5
4
6. HEAT OUTPUT INDICATOR: Shows the present
Heat Level output setting and the Feed Trim while
it is being adjusted. The bottom is position #1 and
the top is #5
7. HEAT LEVEL ADJUSTMENT BUTTONS:
Changes the Heat Setting of the Unit from LO
to HIGH. Press the Arrow Up button to increase
Heat, and Arrow Down to decrease Heat.
8. FEED TRIM BUTTON: Used in conjunction with
the Heat Level Adjustment Buttons to adjust the
Feed Trim. It can be increased by two (2) feed
settings or it can be decreased by two (2) feed
settings. The Feed Trim can only be adjusted one
setting at a time.
7
HEAT LEVEL
FUEL TYPE
COMBUST ION
AIR TRI M
8
FEED TRIM
Figure 7: DHC 4110 Circuit Board Control Panel.
ON/OFF
C-11724
3
2
1
11
1
2
3
4
5
6
7
Stove Controls
ConTrol Board FunCTions - omega:
1. ON/OFF BUTTON: To turn on the stove, press the On/Off button. A start up sequence will begin
where one of the fuel type indicator lights will turn on. This light will remain on until a proper fire is
established.
Changing the heat level settings will move the heat level indictor light but will have no effect on the
feed rate until the proper fire is established.
When the stove has established a proper fire the fuel type indicator light will flash in sequence with
the fuel feed. The stove will operate on the last feed setting selected.
To turn off the stove, press the On/Off button and the stove will start its shut down sequence. You will
not be able to alter any of the stoves operations during this shut down sequence. When the stove is
cold it will turn off. This may take 10 to 15 minutes.
2. FUEL TYPE BUTTON: Used to switch between fuel type modes; Pellet (for all qualities of wood pellets)
and Multifuel (for all fuels including wood pellets). When set on Multifuel it will run at a reduced High
Feed Rate with wood pellets.
Switching to the Multi-fuel setting.
The Omega must be completely off to switch between the pellet feed and the multi-fuel feed. If you
have been running the Omega and want to change from one fuel type to another you must turn the
stove off and allow it to go through a full shut down cycle. Then you can change the fuel type by
pressing the fuel type button. The Omega will switch between the pellet setting and the multi-fuel
setting. An indicator light will show which setting is chosen, green for pellet and yellow for multi-fuel.
Trimming the multi-fuel settings.
You can increase or reduce the feed rates in
the multi-fuel setting. Follow the procedures in
Stove ControlS; Control Board FunCtionS - omega
item number 7.
Why change feed rates?
There are a wide variety of fuels available today.
We give the operator the ability to trim the feed
rates to allow the Omega to burn a wide variety
of fuel types and sizes. In general the volume of
fuel being fed through the auger is determined
by the average size of the fuel. The smaller the
average size the more fuel will be fed. Good
wood pellets tend to be larger in size, averaging
from ½” to 1 ¾” long. Lower quality pellets or
alternate fuels like corn have smaller particle
sizes ranging from ¼” to ½”.
Burning pellets in the alternate feed
setting.
You can reduce the feed rate for pellets, lower
than the lowest trimmed rate setting if desired.
To do this, you can burn wood pellets on the
multi-fuel feed setting. This will reduce the
pellet feed by approximately 12%. You can then
use the feed trim button to further alter the feed
rate. This process allows the feed rate to be
Figure 8: Omega Circuit Board Control Panel.
12
Stove Controls
altered by approximately 30% from its highest to its lowest setting giving the consumer tremendous
control over their Omega.
Burning alternate fuels in the pellet setting.
It is not recommended to burn alternate fuels, or pellets with small particle sizes, on the pellet setting.
Doing this may cause the Omega to run dirty. If you notice your glass getting black more quickly or
the exhaust coming from the end of the flue pipe being dirty, then we recommend trimming the feed
rate down or switching to the alternate fuel setting. This will reduce the feed rate and increase the air
to fuel ratio. This will allow the Omega to run more efficiently and the stove will stay cleaner longer.
3. THERMOSTAT SWITCH: The thermostat switch allows the consumer to operate the stove in 3
different control modes known as the “Tri-Mode Operating System”; AUTO/OFF or HIGH/LOW (when
using a Thermostat or Timer) or MANUAL.
You can switch between the 3 settings while the stove is running.
The operations are as follows: -
Manual Mode - To increase or decrease the feed rate, simply press the heat level button up or down.
There are 5 settings. A green indicator light will move to highlight the desired heat output.
Hi/Lo Mode - This mode is used when the stove is connected to a thermostat (not supplied). Turn
the stove on as per the instructions above. When the stove has established a proper fire it will transfer
some of the control of the stove to the thermostat.
When the thermostat is calling for heat the stove will cycle to the last heat output setting selected i.e.
if the stove is set at #3 heat output setting the stove will operate on the 3# setting.
When the thermostat does not call for heat, the stove will cycle down to the #1 heat output setting.
It will remain at the #1 setting until the thermostat calls for heat again.
To turn off the stove, press the On/Off button and the stove will start its shut down sequence. You will
not be able to alter any of the stoves operations during this shut down sequence.
Auto / Off Mode - This mode is used when the stove is connected to a thermostat (not supplied).
The stove will operate similarly to the Hi/Lo mode with one exception. If the stove cycles to the low
setting and stays there for more than 30 minutes, the stove will automatically go into a shut down
sequence. Any alteration to the heat settings during the shut down sequence will have no effect on
the stoves operation.
When the shut down sequence is complete the stove hands control back to the thermostat. The stove
will restart automatically if the thermostat calls for heat. Any alteration to the heat settings during the
30 minute start up sequence will have no effect on the stoves operation.
4. FUEL TYPE LIGHTS: Shows the present Fuel Type selected; Pellet is green and Multifuel is yellow.
The light flashes during start-up and stops flashing when the 49°C (120°F) exhaust temperature
sensor switch closes.
5. HEAT OUTPUT INDICATOR: Shows the present Heat Level output setting and the Feed Trim while
it is being adjusted.
6. HEAT LEVEL ADJUSTMENT BUTTONS: When pressed, they will change the heat setting of the
unit from low to high. Press the up arrow button to increase heat or the down arrow to decrease the
heat.
7. FEED TRIM BUTTON: Used in conjunction with the Heat Level adjustment buttons to adjust the Feed
Trim.
• The Feed Trim can only be adjusted one setting at a time. This button can also be used to “prime
the auger system”.
• If you use the auger trim button it will affect all feed rate on all settings, 1 through 5 equally.
13
1
2
3
4
Stove Controls
• The auger trim button only affects the feed rate and not the combustion airflow. Therefore this will
increase or decrease the air to fuel ratio.
• You can increase or decrease all feed rates by two increments or steps. Each feed rate change will
increase or decrease the feed rate by approximately 5% for all settings 1 through 5.
Increasing the feed rate
a) To increase the feed rate, push the auger trim button and the up button at the same time.
b) The heat indicator light will flash at the current setting (e.g. if you are set on #3, that light will
flash).
c) Then push the auger trim up button again, the #4 light will flash. Then the light will return to #3.
d) If you push the auger trim again, together with the up button, the #5 light will flash, then return to
#3.
e) If you have your heat indicator light set on #5 and you increase the feed rate, then only the #5 light
will flash. The feed rates will increase.
Decreasing the feed rate
To decrease the feed rates, follow the above procedure a to c but use the down button.
If you have your heat indicator light set on #1 and decrease the feed rate, then only the #1 light will
flash. The feed rates will decrease.
ConTrol Board FunCTions - daugHTer generaTion i:
1. ON/OFF BUTTON: Used to turn the unit ON and OFF.
2. AUGER PULSE LIGHT: This light will flash in conjunction with
the auger.
3. HEAT OUTPUT INDICATOR: Shows the present heat output
setting.
4. HEAT LEVEL ADJUSTMENT: When pressed, will change the
heat setting of the unit from low to high. The fan runs up and
down with the heat setting.
Notes:
• The convection blower speed will vary automatically with the feed
rate.
• Due to varying fuel qualities this pellet stove may not operate on
lower Heat Level settings. If your unit goes out when on a low
setting move the heat level up to a higher setting.
• The lowest and highest heat levels on this pellet stove are used
for adjusting and accommodating for different pellet sizes and the
varying energy produced by the fuels. The size of the pellets will
change the volume of fuel being fed.
• The unit should be run at a setting where the least amount of
cleaning of the burn pot is needed.
Figure 9: Daughter Circuit Board
Control Panel - Generation I.
14
ON/OFF
FEED RATE
TRIM
COMBUSTION
BLOWER TRIM
HEAT
LEVEL
AUTO/OFF
HIGH
/LOW
MANUAL
C-11825
1
2
3
4
5
Stove Controls
ConTrol Board FunCTions - daugHTer generaTion ii:
1. THERMOSTAT SWITCH: Used to set the unit’s controls to one of three mode settings; manual,
high/low, or auto/off.
2. FEED RATE TRIM BUTTON: Used to change the feed rate
trims in ¼ second increments for all feed settings. When this
button is pressed, all the light will light up on the Heat Output
HEAT
LEVEL
5
4
3
2
1
AUTO/OFF
HIGH
/LOW
MANUAL
FEED RATE
TRIM
COMBUSTION
BLOWER TRIM
ON/OFF
C-11825
3
4
5
6
Indicator except for the one that shows the current setting; the
default setting is the number 4 light. To adjust the setting hold
the Feed Rate Trim button down and press the Heat Level up or
down buttons to adjust the setting.
3. COMBUSTION BLOWER TRIM BUTTON: Used to change the
Combustion Blower trims in 5 volt increments for all feed settings
until it reaches line voltage. When this button is pressed, all the
light will light up on the Heat Output Indicator except for the one
that shows the current setting; the default setting is the number
2 light. To adjust the setting hold the Combustion Blower Trim
button down and press the Heat Level up or down buttons to
adjust the setting.
4. ON/OFF BUTTON: Used to turn the unit ON and OFF.
5. HEAT LEVEL ADJUSTMENT BUTTONS: When pressed, will
change the heat level setting of the unit up or down.
6. HEAT OUTPUT INDICATOR: Shows the present heat output
setting.
9
8
Figure 10: Daughter Circuit Board
Control Panel - Generation II.
ConTrol Board ligHTs - dHC 2000:
Working at a normal
factory setting.
Working at the
factory high feed.
Figure 11: DHC 2000 Circuit Board Control Panel Light Examples.
Working at a
increased low feed.
Working at a
reduced low feed.
Convection blower
button being pressed.
15
Stove Controls
CirCuiT Board seT-uP - dHC 2000:
The 2000 series boards are most recognizable by the 2 fuses and no slide switch.
HI / LOW OPERATION (Factory Setting): One pin is covered, as shown as ‘A’ in Figure 10. When the
jumper J9 is not jumped then the control board is in a HI / LOW mode operation. If the unit has been
placed in the HI / LOW mode, the unit will be taken to a low or idle setting when the thermostat is not
calling for heat. When the thermostat calls for heat, the unit will go to the setting that is displayed on
the control board Heat Indicator. If the heating load is not great enough when the stove is on low, the
exhaust temperature switch will turn the stove off.
ON / OFF OPERATION: Both pins are covered, as shown as ‘B’ in Figure 10. If the control board
is placed with J9 jumped then the control board is in a ON / OFF mode of operation. In the ON /OFF
thermostat mode, when the thermostat calls for heat, the unit will go through an ignition sequence and
light the stove. Once lit the unit will operate at the selected setting displayed on the control board Heat
Output Indicator. Once the thermostat stops calling for heat, the unit will stop feeding pellets and begin
its shut down sequence until cold then turn off.
A) HI / LOW: When the jumper is placed on only
one of the J9 pins, then the control board is in a
HI / LOW mode of thermostat operation (factory
setting).
1. Install the Low Voltage
Thermostat (maximum 24V) in
a location that is not to close
too the unit but will effectively
monitor the desired area to be
heated.
B) ON / OFF: If both pins of J9 are jumped
(covered), the control board is in an ON / OFF
mode of thermostat operation.
Remove jumper wire
and install thermostat
wires here
Figure 12: Setting the Thermostat mode Pins on DHC 2000 Board.
2. Open the right cab side to
expose thermostat wires and
disconnect. Install 18 gauge
(see
Wiring diagram section)
or heavier wire through the
grommet in the back, from
the stove to the thermostat.
Connect thermostat wires to
red wires provided or remove
if desired.
3. To set the thermostat jumper
to the desired mode, remove
the two (2) screws holding the
circuit board control panel in
place. Lower the board and
pull out to change jumper.
16
Stove Controls
CirCuiT Board seT-uP - dHC 3000:
Remove jumper
wire and install
thermostat wires
here
A) MANUAL: When the jumper
is placed over pins 1 & 2, then
the control board is in a MANUAL
mode.
Figure 13: Setting the Thermostat mode Pins on DHC 3000 Board Generation I.
B) HI / LOW: When the jumper is
placed over pins 3 & 4, then the
control board is in a HI / LOW
mode of thermostat operation.
C) ON / OFF: When the jumper is
placed over pins 4 & 5, then the
control board is in an ON / OFF
mode of thermostat operation.
DHC 3000 Generation I - This board looks like the standard
3000 series board (Generation II) but it does not have the slide
switch on the front; it has a second set of jumper pins on the
back for the thermostat setting (see Figure 11). This board can
be used to replace the DHC 2000 board.
DHC 3000 Generation II - This board has a horizontal slide
switch on the front and only one (1) fuse (see Figure 12). Do
not adjust the pins on the back of the Generation II board.
Figure 14: Front & Back of the DHC 3000
Board Generation II.
17
Factory Setting;
60,000 BTU. Jumper pin
location 2 left pins covered
70,000 BTU. Jumper pin
location 2 center pins covered
50,000 BTU. Jumper pin
location 2 right pins covered
Stove Controls
CirCuiT Board seT-uP - dHC 4000:
The DHC 4000 board has a vertical slide switch, one fuse
and second multi pin connector for setting feed rates.
Circuit Board Pin Set-Up for Maxx BTU Inputs: This
is the jumper pin location for the different BTU inputs for
the Maxx pellet stove. The location of the jumper pin box
is located at the upper left hand corner of the back of the
circuit board (see Figure 14 below 60,000 BTU location)
Figure 15: Front & Back of the DHC 4000
Board.
Figure 16: Setting the BTU Input Pins on DHC 4000 Board For the Maxx.
CirCuiT Board Pin seT-uP - daugHTer Board:
The mother board is wider than the DHC boards and has no
LEDs on the front. It uses pin outs instead of a slide switch for
the thermostat selection
Figure 17: Mother & Daughter Boards.
18
Stove Operation - Timer Control
sTarT-uP sequenCe:
1. Switch the power “ON” by pushing the start-up switch once only.
2. Turn the dial-a-fire knob to the 12 o’clock position. (Lower grade pellets may need a higher
setting on the feed rate). NOTE: Unit will take longer to light if the hopper has been completely
emptied or is the first fire up.
3. Wait until the fire is established, then turn dial-a-fire knob to the desired heat output. The stove may
not be able to stay burning in the BLUE ZONE if poor quality wood pellets are being used. Adjust the
slider-damper to the appropriate setting.
4. If the stove should shut off after fifteen (15) minutes and there is still a fire in the firebox – press the
start-up switch once more. If the fire went out, return to step 2 and re-light the stove.
SPECIAL NOTES:
The convection blower may cycle to high automatically depending on the setting of knobs “A” and “B”.
This is a normal safety feature of the unit.
Wood pellets of differing quality may affect the performance of the stove. If the stove has trouble
operating at either end of its range, turn the heat output knob forward or back slightly.
sHuT down:
To turn your 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. When cool enough, the stove will shut down.
DO NOT unplug unit while combustion fan is operating; this may lead to smoke escaping
from the stove.
19
Stove Operation - Circuit Board
dHC 2000 sTarT-uP sequenCe (15 minuTes) - manual mode, FaCTory seTTing:
NOTE: No Thermostat or Wall Switch
1. Push the ON/OFF button to start. The stove may take up to 30 seconds to establish rebox vacuum.
2. The ON/OFF light turns on solid.
3. The ON/OFF light starts to flash after the vacuum sensor has closed (approximately 15 seconds).
• The Auger Light will flash with each pulse of the auger (the auger feed rate is pre-programmed during
start-up). The auger light flashes:
- 3 seconds ON
- 8 seconds OFF
5. The combustion blower comes on at full speed.
6 a. The ignitor comes on.
b. The convection blower stays off.
c. The heat level indicator will show the heat level that the stove will run at after start-up.
d. The operator has no control over the start-up sequence. The operator can press and hold the
manual feed button to run the auger continuously for 60 seconds and then will have to press again for
another 60 seconds. The operator can also pre-set the heat output setting for operation. When the
unit reaches operating temperature the heat output will go to that setting.
7 a. The unit should light after 5 to 12 minutes.
b. Once the 120°F (49°C) exhaust temperature sensor closes, the convection blower will come on.
8. Fifteen minutes after pushing the start button, the ON/OFF light will change to solid. This signals that
the unit is at operating temperature.
dHC 2000 normal oPeraTion - manual mode, FaCTory seTTing:
The operator can now set the heat output, low feed trim, and whether the convection blower is ON or
OFF (depending on model).
The convection blower can be turned OFF by depressing the convection blower control button.( MERIDIAN
ONLY: When the air jacket reaches 160°F (71°C) the convection blower will come on high, cooling the
unit). For the best efficiency, the convection blower should be left on at all times.
When operating on LOW HEAT LEVEL, the feed rate can be adjusted, using the auger trim, for different
quality fuels.
Please note: When the heat output is changed, the combustion blower and convection blower speed
change as well.
dHC 2000 sHuT down - manual mode, FaCTory seTTing:
1. Push ON/OFF button to turn stove off.
2. All the lights will turn off
3. The auger will stop feeding
4. The combustion blower goes to full speed until the exhaust temperature sensor opens, stopping all
motors.
20
Stove Operation - Circuit Board
dHC 2000 sTarT-uP sequenCe (15 minuTes) - HigH/low mode, wiTH THermosTaT or wall swiTCH:
Thermostat contacts open (it is satisfied) or closed (it is calling for heat) at time of start-up.
1. Push the ON/OFF button to start. The stove may take up to 30 seconds to establish rebox vacuum.
2. The ON/OFF light turns on solid.
3. The ON/OFF light starts to flash after the vacuum sensor has closed (approximately 15 seconds).
• The Auger Light will flash with each pulse of the auger (the auger feed rate is pre-programmed during
start-up). The auger light flashes:
- 3 seconds ON
- 8 seconds OFF
5. The combustion blower comes on at full speed.
6 a. The ignitor comes on.
b. The convection blower stays off.
c. The heat level indicator will show the heat level that the stove will run at after start-up.
d. The operator has no control over the start-up sequence. The operator can press and hold the
manual feed button to run the auger continuously for 60 seconds then must be pressed again for
another 60 seconds. The operator can also pre-set the heat output setting for operation. When the
unit reaches operating temperature the heat output will go to that setting.
7 a. The unit should light after 5 to 12 minutes.
b. Once the 120°F (49°C) exhaust temperature sensor closes, the convection blower will come on.
8. Fifteen minutes after pushing the start button, the ON/OFF light will change to solid. This signals that
the unit is at operating temperature.
Note: The circuit board can only be turned off during start-up if vacuum has been established and the
thermostat contacts are closed. The ON/OFF light will continue flashing
dHC 2000 normal oPeraTion - HigH/low mode, wiTH THermosTaT or wall swiTCH:
Thermostat contacts are closed (it is calling for heat).
The ON/OFF light is solid. The operator can now set the heat output, low feed trim, and whether the
convection blower is ON or OFF.
(Depending on the model) The convection blower can be turned OFF by depressing the convection
blower control button. When the air jacket reaches 160°F (71°C) the convection blower will come on
high, cooling the unit. For the best efficiency and to prevent cycling, the convection blower should be left
on at all times.
When operating on LOW HEAT LEVEL, the feed rate can be adjusted, using the auger trim, for different
quality fuels.
Please note: When the heat output is changed, the combustion blower and convection blower speed
change as well.
Thermostat contacts are open (it is satisfied).
The ON/OFF light starts flashing.
All functions drop to LOW speed. Combustion blower speed, convection blower speed and heat output
all change to LOW together.
Operator has no control over the Heat output, but can control the Low Feed Trim and Convection Blower
ON/OFF.
21
Stove Operation - Circuit Board
dHC 2000 sHuT down - HigH/low mode, wiTH THermosTaT or wall swiTCH:
Thermostat contacts are closed (it is calling for heat).
1. Push ON/OFF button to turn stove off.
2. All the lights will turn off
3. The auger will stop feeding
4. The combustion blower goes to full speed until the exhaust temperature sensor opens, stopping all
motors.
Thermostat contacts are open (it is satisfied).
1. Push ON/OFF button to turn stove off.
2. The ON/OFF light continues to flash.
3. Auger stops feeding.
4. Combustion blower goes to full speed until exhaust sensor opens and blower stops.
5. The ON/OFF light will continue to flash (unless power is disconnected).
dHC 2000 sTarT-uP sequenCe (15 minuTes) - on/oFF mode, wiTH THermosTaT or wall swiTCH:
Thermostat contacts closed (it is calling for heat) at time of start-up.
1. Push the ON/OFF button to start. The stove may take up to 30 seconds to establish rebox vacuum.
2. The ON/OFF light turns on solid.
3. The ON/OFF light starts to flash after the vacuum sensor has closed (approximately 15 seconds).
• The Auger Light will flash with each pulse of the auger (the auger feed rate is pre-programmed during
start-up). The auger light flashes:
- 3 seconds ON
- 8 seconds OFF
5. The combustion blower comes on at full speed.
6 a. The ignitor comes on.
b. The convection blower stays off.
c. The heat level indicator will show the heat level that the stove will run at after start-up.
d. The operator has no control over the start-up sequence. The operator can press and hold the
manual feed button to run the auger continuously for 60 seconds then must be pressed again for
another 60 seconds. The operator can also pre-set the heat output setting for operation. When the
unit reaches operating temperature the heat output will go to that setting.
7 a. The unit should light after 5 to 12 minutes.
b. Once the 120°F (49°C) exhaust temperature sensor closes, the convection blower will come on.
8. Fifteen minutes after pushing the start button, the ON/OFF light will change to solid. This signals that
the unit is at operating temperature.
Note: If the thermostat contacts are opened (it is satisfied) during start-up the circuit board and all
motors turn OFF and ON/OFF light remains flashing.
Thermostat contacts are open (it is satisfied) when the ON/OFF button is pressed.
The circuit board will not turn on.
22
Stove Operation - Circuit Board
dHC 2000 normal oPeraTion - on/oFF mode, wiTH THermosTaT or wall swiTCH:
Thermostat contacts are closed
If the stove is OFF then the unit will start the start-up sequence.
After the 15 minutes, the operator can now change the heat output, low feed trim, and whether the
convection blower is ON or OFF (depending on the model).
The convection blower can be turned OFF by depressing the convection blower control button. When the
air jacket reaches 160°F (71°C) the convection blower will come on high, cooling the unit. For the best
efficiency and to prevent cycling, the convection blower should be left on at all times.
When operating on LOW HEAT LEVEL, the feed rate can be adjusted, using the auger trim, for different
quality fuels.
If the unit was in the LOW mode when the thermostat closes then the controls will change to the Manual
mode.
Please note: When the heat output is changed, the combustion blower and convection blower speed
change as well.
Thermostat contacts are open
1. The stove will shut down after 30 minutes on LOW.
2. All lights turn off.
3. Auger stops feeding.
4. Combustion blower goes to full speed until exhaust sensor opens and blower stops.
(it is calling for heat).
(it is satisfied)
.
dHC 2000 sHuT down - on/oFF mode, wiTH THermosTaT or wall swiTCH:
Thermostat contacts are closed
The stove will not shut off.
If you push ON/OFF button the circuit board will go through a start-up sequence (see
(15 minuteS) - on/oFF mode, With thermoStat or Wall SWitCh).
Thermostat contacts are open
1. Push ON/OFF button to turn stove off, turn the thermostat down, or off
2. All lights turn off.
3. Auger stops feeding.
4. Combustion blower goes to full speed until exhaust sensor opens and blower stops.
(it is calling for heat)
(it is satisfied)
.
.
Start-up SequenCe
23
Stove Operation - Circuit Board
dHC 4100 sTarT-uP sequenCe (15 minuTes) - manual mode, FaCTory seTTing:
NOTE: No Thermostat or Wall Switch - Manual Control Only
1. Push the ON/OFF button to start. The stove may take up to 30 seconds to establish rebox vacuum.
2. The Auger Light will flash with each pulse of the auger (the auger feed rate is pre-programmed during
start-up).
3. The combustion blower comes on at full speed.
4. a. The ignitor comes on.
b. The convection blower stays off.
c. The heat level indicator will show the heat level that the stove will run at after start-up.
d. The operator has no control over the start-up sequence. The operator can press and hold the
manual feed button to run the auger continuously for 60 seconds and then will have to press again for
another 60 seconds. The operator can also pre-set the heat output setting for operation. When the
unit reaches operating temperature the heat output will go to that setting.
5. a. The unit should light after 5 to 12 minutes.
b. Once the 120°F (49°C) exhaust temperature sensor closes, the convection blower will come on.
6. Fifteen minutes after pushing the start button, the Mode light will change to solid. This signals that the
unit is at operating temperature and control is returned to the user.
7. The Auger Light will continue to flash to the corresponding Heat Level setting. The Heat Level Indicator
will show the Heat Level that the stove will run at after start-up and can be adjusted but the change
will not take affect until the start -up has finished.
8. The convection blower (room air blower) will turn on.
dHC 4100 normal oPeraTion - manual mode, FaCTory seTTing:
The operator can now set the heat output, low feed trim, and whether the convection blower is ON or
OFF (depending on model).
The combustion fan trim changes exhaust voltage incrementally on all heat levels. When this button
is pressed, all the lights come on except the one that is the set point. This will indicate what setting it
is on before adjustment. Hold the button down and press the up or down arrow to adjust the setting.
Depending on the model, the convection blower can be turned OFF by depressing the convection blower
control button. For the best efficiency, the convection blower should be left on at all times.
Feed trim changes ‘ON’ time in 0.25 sec. increments for each feed settings. Position #4 is the factory
default setting, there is one (1) setting up and three (3) settings down. When this button is pressed all
the lights come on except the one that is the set point. This will indicate what setting it is on before
adjustment. Hold ‘Feed Rate Trim’ button down and press the up or down arrow to adjust setting. Trim
settings are still maintained after loss of power.
dHC 4100 sHuT down - manual mode, FaCTory seTTing:
1. Push ON/OFF button to turn stove off.
2. All the lights will turn off
3. The auger will stop feeding
4.
The combustion blower goes to full speed until the exhaust temperature sensor opens, stopping all motors.
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