Toyotomi Laser 300 Owner's manual

LASER CLEAN VENTED
MODEL Laser 300
(Type A)
IMPORTANT
READ AND UNDERSTAND INSTRUCTIONS BEFORE INSTALLING OR USING HEATER.
RETAIN INSTRUCTIONS FOR FUTURE REFERENCE. CHECK LOCAL CODES AND ORDINANCES FOR PERMITTED USE.
LASER CLEAN HEATING SYSTEM/VENTED HEATER
INSTALLATION AND OPERATION INSTRUCTIONS
CONTENTS
SECTION A:
Specifications
Safety Features
SECTION B:
Safety Tips for Operation
SECTION C:
Fuel Guide
SECTION D:
Operating Controls and Part Names
SECTION E:
Operation
Before Ignition
Operation
Turning Heater Off
SECTION F:
Routine Maintenance
················································ 2
·············································· 3
································ 4
···················································· 5
················· 6
··········································· 9
················································· 10
···································· 15
···································· 16
·············································· 8
·········································· 9
······················ 20
························· 20
········································ 22
·························· 25
··············· 26
······················· 32
························································ 33
SECTION G:
Troubleshooting
SECTION H:
Long Term Storage
SECTION I:
Installation
Tools Needed for Installation
Standard Installation Parts
Accessary Parts
Safety Tips for Installation
Installation of Heater and Flue Pipe
Permanent Wiring Installation
SECTION J:
Fueling
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 1

SECTION A:
SPECIFICATIONS
Model:
Heater Efficiency:
Heat Rating:
Fuel Consumption:
Fuel System:
Fuel Type:
Dimensions (W ✕H ✕D):
Weight:
Vent Pipe Hole:
Maximum Length of Vent Pipe System:
Electrical Rating:
Typical Room Size (3):
Laser 300
92.4% (1)
High - 15,000 BTU/h
Med - 10,100 BTU/h
Low - 5,310 BTU/h
High - 0.108 gal/h (0.409 L/h)
Med - 0.076 gal/h (0.288 L/h)
Low - 0.040 gal/h (0.151 L/h)
External tank (2)
1-K kerosene (ASTM D3699)
Low Sulfur No.1 Fuel (ASTM D396 S500)
Ultra Low Sulfur Diesel Fuel (ULSD) or
Ultra Low Sulfur Heating Oil (ULSHO) (ASTM D975 S15)
17-3/8” ✕21-3/4” ✕15-1/8” (440 ✕555 ✕385 mm)
31 lbs. (14 kg) Empty
2-3/4” – 3” (7.0 – 7.5 cm) diameter
10 ft. (3 m), 3 bends or less
120 Volts AC, 60 Hz
Preheat - 240W
Burning - 23W
600 square feet (0˚F)
720 square feet (20˚F)
(1)
(2)
(3)
Heat and vaporized water are produced by the combustion process of this heater. This rating does not take
into account heat loss due to condensation of water vapor.
External tank to be purchased from local suppliers.
0˚F Heat Load = 24 BTU/ft2/hr
20˚F Heat Load = 20 BTU/ft2/hr
Room size for which this heater is suitable will vary depending on outside temperature, house insulation,
window size, and other factors.
2
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 2

Flame Sensor
Heater will automatically stop all operations if ignition fails or if flame fails during combustion, in order to
prevent fuel overflow. Error code will be displayed on the digital indicator.
Fuel Strainer
Special strainer catches dirt or impurities present in the fuel before it is sent to the burner.
Overheat Protector
Automatically stops all operations if heater inside cabinet reaches abnormally high temperature due to motor
malfunction or abnormal combustion, in order to prevent fire.
Power Failure Recovery System
If power fails during heater operation, heater will automatically reignite and maintain the normal selected
temperature, when power resumes.
Fully Vented System
Flue pipe system uses outside air for combustion and vents all combustion products to the outdoors.
1.
2.
3.
4.
5.
SAFETY FEATURES
Your Laser 300 is equipped with the following safety features. Please familiarize yourself with these features.
When your heater is extinguished due to a safety mechanism, be sure to identify and correct the problem.
Igniter
Drip tray
Fuel pipe Burner
Burner ring
Flame sensor
Peep hole
Fuel pump
Circulation fan
Red reset button
Fuel sump
Integral fuel
strainer (inside)
Blower motor
Heat exchanger
Overheat protector
Heat shield plate
3
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 3

CAUTION:
0204060
-20 A
B
Room Temperature (˚F)
Outside Temperature (˚F)
-25
-30
-35
-40
-45
SECTION B:
SAFETY TIPS FOR OPERATION
If outside temperature -20°F
than room temperature has to be 0°F or above
If outside temperature -45°F
than room temperature has to be 60°F or above
Point A:
Point B:
Heater and vent pipe system must be properly installed before operation.
Please follow instructions under “Installation”, Section I.
Never use any fuel other than clear or red colored kerosene (ASTM D3699 1-K
Kerosene, ASTM D396 Low Sulfur No.1 Fuel Oil, ASTM D975 Ultra Low Sulfur
Diesel (ULSD), or Ultra Low Sulfur Heating Oil (ULSHO)). NEVER USE
GASOLINE. Use of gasoline can lead to uncontrollable flames, resulting in
destructive fire.
1.
Due to high surface temperatures, keep heater away from children, furniture and
clothing while in operation (See Page 26).
2.
To prevent abnormal operation and prolong heater life, be sure to perform
routine maintenance (See Pages 16).
3.
Never store or transport kerosene in other than a metal or plastic container that
is clearly marked, “KEROSENE”, “No.1 FUEL OIL”, “ULTRA LOW SULFUR
DIESEL”, or “ULTRA LOW SULFUR HEATING OIL”. Never store fuel in the living
space.
4.
Operating Temperature Range
Use heater within the range of temperatures
indicated in the right figure.
5.
Operating Range
RIGHT
KEROSENEKEROSENE
WRONG
GAS
Kero-
sene
Danger
4
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 4

KEROSENE
SECTION C:
FUEL GUIDE
Clean and high-quality ASTM D3699 1-K Kerosene, ASTM D396 Low
Sulfur No.1 Fuel Oil, ASTM D975 Ultra Low Sulfur Diesel (ULSD), or
Ultra Low Sulfur Heating Oil (ULSHO).
Fuel free of contaminants, water or cloudiness.
Gasoline, alcohol, white gas, camp stove fuel or additives.
Yellow or sour-smelling fuel.
Store in a clean container, non-red in color, clearly marked KEROSENE,
No.1 FUEL OIL, ULTRA LOW SULFUR DIESEL, or ULTRA LOW
SULFUR HEATING OIL.
Store away from direct sunlight, heat sources or extreme tempera-
ture changes.
In a glass container, or one that has been used for other fuels.
For longer than six months. Begin each heating season with fresh
fuel; discard at the end of season.
In the living space.
• Excess tar deposits on burner and flue pipe
• Incomplete combustion
• Reduced heater life
What to Buy . . .
ALWAYS :
ALWAYS :
NEVER :
NEVER :
How to Store It . . .
ALWAYS :
ALWAYS :
NEVER :
NEVER :
NEVER :
Why It is Important . . .
Good, clean fuel is essential for safe and efficient heater operation. Poor quality or
contaminated fuel can cause:
Use of a highly volatile flammable fuel such as gasoline can produce
uncontrollable flames, creating a severe fire hazard.
Note: The fluidity of Ultra Low Sulfur Diesel and Ultra Low Sulfur Heating Oil becomes
worse at temperatures of 21˚F (-6˚C) and below and can “gel”. This condition may
cause ignition failure. To prevent congealing it is recommended to use an additive
with the fuel. Check with a fuel supply company for the proper additive and mix.
GAS
The Toyostove Laser 300 is designed for use with ASTM D3699 1-K kerosene, ASTM D396 Low Sulfur No.1 Fuel Oil,
ASTM D975 Ultra Low Sulfur Diesel (ULSD), or Ultra Low Sulfur Heating Oil (ULSHO). Use of low-quality fuel will
cause burner performance to drop, leading to abnormal combustion and reduced heater life.
Purchase only ASTM D3699 1-K kerosene or ASTM D396 Low Sulfur No.1 Fuel Oil, ASTM D975 Ultra Low Sulfur Diesel
(ULSD), or Ultra Low Sulfur Heating Oil (ULSHO) in non-red cans reserved exclusively for kerosene and marked
accordingly with the word “KEROSENE”, “No.1 FUEL OIL”, “ULTRA LOW SULFUR DIESEL”, “ULTRA LOW SULFUR
HEATING OIL”. Always store your fuel in a separate area from where you store gasoline for your power equipment to
avoid accidental use of gasoline in your heater.
5
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 5

Drip tray
Front panel
Louver
Control panel 17. Circuration fan
Circulation fan motor
Pipe stopper
Air inlet
Exhaust outlet
18. Room
temperature sensor
Red reset button
Fuel strainer (inside)
Rear cover (left)
19. Power supply cord
Rear cover (upper)
Rear cover (right)
Ciraulation air filter
13. BURNING MODE indicator12. CHILD LOCK indicator
9. AUTO indicator
10. TIMER indicator
11. POWER SAVER indicator
7. ˚F / ˚C switch
5. POWER SAVER/
DAY SELECT button
2. AUTO button
16. Day of the week indicator
14. AM / PM indicator
3. TIMER button 1. ON/OFF button
4. TEMP / TIMER / CLOCK / DAY set
15. ˚F/˚C indicator
8. ON lamp
6. CHILD LOCK /
CLEAR button
Before using heater, familiarize yourself with the following operating controls and names.
SECTION D:
OPERATING CONTROLS AND PART NAMES
Make a note of your heater’s serial number,
located on the outside cabinet surface.
Your heater’s serial number:
SERIAL NO.
6
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 6

1. ON/OFF button:
2. AUTO button:
3. TIMER button:
4. TEMP/TIMER/CLOCK/DAY set:
5. POWER SAVER/DAY SELECT button:
6. CHILD LOCK/CLEAR button:
7. ˚F/˚C switch:
8. ON lamp:
9. AUTO indicator:
10. TIMER indicator:
11. POWER SAVER indicator:
12. CHILD LOCK indicator:
13. BURNING MODE indicator:
14. AM/PM indicator:
15. ˚F/˚C indicator:
16. Day of the week indicator:
17. Circulation fan:
18. Room temperature sensor:
19. Power supply cord:
Main button turns heater on and off. When switched
on, heater begins operation and combustion starts
after preheat period.
The button turns weekly timer operation modes on and
off which have been programmed into weekly timer.
The button turns weekly timer set mode on and off.
TEMP/TIMER/CLOCK/DAY set modes can be set by
pressing the ▲MIN. or ▼HOUR buttons.
The button turns POWER SAVER operation mode on
and off. When setting weekly timer, the button is used
to select a day of the week.
The button turns CHILD LOCK operation mode on
and off. When setting weekly timer, the CLEAR button
is used.
C/F toggle switch.
Lit – Heater is in operation.
Flashing – Pre-heating and pre-purging.
Lit – Weekly timer operation is in use.
Lit – Heater operating in weekly timer set mode.
Lit – Heater operation in POWER SAVER mode.
Lit – Heater operation in CHILD LOCK mode.
Lit – Heater operation at high, medium or low
combustion.
Lit – Digital indicator shows current time.
Flashing – Current time can be changed.
Lit – Digital indicator shows current temp.
Flashing – Current temp can be changed.
Lit – Digital Indicator shows current day or timer day.
Three speed motor supplies high-capacity warm air
flow during high combustion for heating room up
quickly, and low or medium-capacity warm air flow
during low or medium combustion for maintaining
comfortable room temperature.
Constantly senses room temperature and supplies
information to heater so that desired room
temperature can be maintained.
For use in 120V, AC electrical outlet.
7
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 7

2
7
45
45
45
45
60
19
33
28
45
11
27
12
37
26
25
46
14
15
41
16
13
50
58
18
23
40
22
24
50 50
9
50
17
3
66
8
30
59
32
38
45
6
48
4
5
31
45
45
29
67 68
20
21
50
52
39
42
57
54
55
55
53
56
57
1
48
36
61 63 65
64
45
10
34
47
35
43
45
51
48
46
49
62
47
44
REF # PART # PART NAME REF # PART # REF # PART # PART NAMEPART NAME
1
1
2
2
3
3
4
4
5
5
6
6
7
8
8
9
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
70
20470227
20470827
20470260
20470860
20470276
20470876
20470251
20479551
20470253
20479553
20470250
20479550
20479540
20470246
20470846
20470229
20470829
20470252
20479530
20470244
20479593
20479543
20470242
20479594
20470211
20470273
20470212
20474083
20475834
20470218
17187582
20474920
17185314
17185327
20479591
20479531
20470237
20479683
20470269
20479671
20470206
20470234
20470219
20470241
20475535
20478373
20479891
20479521
20479513
20470255
20479574
20470220
20470254
20476452
20474053
20455862
20470756
20477084
20474050
20474048
20479585
20474925
20479584
20474975
20470261
20474977
17185352
20479866
20479568
20470286
20479556
20478550
20475551
20475552
20470275
20470678
20470679
20470295
20470299
20470899
Front panel assembly
Front panel assembly (BK)
Top plate
Top plate (BK)
Operation panel
Operation panel (BK)
Rear guard right
Rear guard right (BK)
Rear guard left
Rear guard left (BK)
Rear guard top
Rear guard top (BK)
Circulation air filter
Cabinet assembly
Cabinet assembly (BK)
Drip tray
Drip tray (BK)
Leveler fuel pipe
Pressure relief plate
Heat exchanger
Heat chamber gasket
Burner ring
Burner assembly
Burner gasket
Primary flame rod
Burner thermistor
Main circuit board
Fuel nozzle gasket
Fuel nozzle
Igniter
Igniter gasket
Igniter cover
Peep window
Peep window gasket
Relief gasket
Relief spring
Blower motor assembly
Air intake fan
Circulation fan motor
Circulation fan
High limit switch
Fuel sump
Fuel pump
Fuel pipe assembly
Power supply cord
Thermistor
Flue pipe
Igniter guide gasket
Burner mat
Insulating cloth cover
Blower motor gasket
Screw 4I
Screw 4J
Screw B2
Screw F
Screw S2
Screw 4D (BK)
Screw F5
Screw C
Screw B
Outside nozzle gasket
Oil catch
Bent joint
L-shaped hose
Inlet hose
Hose band
Flame rod gasket
Air damper
Air joint gasket
Draft tube
Screw 1M
Fuel inlet strainer
Drain screw with O-ring
Strainer gasket
Ribbon cable
Fuse 1 (5A)
Fuse 2 (10A)
Instruction manual
Carton
Carton (BK)
8
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 8

BEFORE IGNITION
SECTION E:
OPERATION
1. Open the Valve(s)
Open the valve(s) of the external fuel tank.
2. Start the Fuel flow
If using heater for the first time, press the red reset button in order to send fuel to
the fuel sump and release.
Note: Make sure there is no fuel leakage from the fuel line or joints.
Also make sure fuel tank is not too high. See installation instructions.
3. Plug in the Heater
Plug heater into a 120V AC electrical outlet. On digital indicator pre-set “Two
Dashes” will be showing.
Note: Do not connect to an outlet shared with other appliances.
4. Set Clock
Important: Clock on the heater must always be set to current time and day.
Note: “HOUR” or “MIN” button will change the time every one (1) unit. Holding the button continuously will cause
the time to change rapidly.
Note: In the event of a power failure (more than approx. 30 min.) all clock and day may be cancelled.
5. Setting of the Time and a Day of the Week.
1) Current time is not set yet. (All signs light.)
Press the “▲MIN.” button or “▼HOUR” button while in not operation. (Power switch is off.)
AM 12:00 is indicated on the display. (All signs except the colon are blinking.)
2) Setting of the current time
Press the “▲MIN.” button to set minutes and press the “▼HOUR” button to set hours.
When pressing the “▼HOUR” button, the sign will change as follows.
“AM 12:00” ➞“AM 1:00” ➞··· ➞“AM 11:00” ➞“PM 12:00” ➞“PM 1:00” ➞··· “PM 11:00” ➞“AM 12:00” ➞···
When pressing the “▲MIN.” button, the sign will change as follows.
“AM 12:00” ➞“AM 12:01” ➞··· ➞“AM 12:59” ➞“AM 12:00” ➞···
Press the “SET” button to complete the set of the current time.
Red reset
button
9
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 9

3) Setting of a day of the week
“dAy” sign is shown on the display and all of days of the week will blink.
Press the “▲MIN.” button or the “▼HOUR” button to set a day of the week. A day of the week will blink. (Initial
setting is “SUN”.) The other days of the week will go off. Select a day of the week by using the “▲MIN.” or the
“▼HOUR” button. When pressing the “▲MIN.” button, the sign will change as follows.
“SUN” ➞“MON” ➞“TUE” ➞“WED” ➞“THU” ➞“FRI” ➞“SAT”
When pressing the “▲MIN.” button at the position of “SAT”, you can hear a beep sound and “SAT” is not
changed any more. When pressing the “▼HOUR” button, the sign will change as follows.
“SAT” ➞“FRI” ➞“THU” ➞“WED” ➞“TUE” ➞“MON” ➞“SUN”
When pressing the “▼HOUR” button at the position of “SUN”, you can hear a beep sound and “SUN” is not
changed any more.
Press the “SET” button to complete the setting of the days of the week. The current time and a day of the week
will show on the display.
Note: If the ON/OFF switch is pressed during setting of the current time and a day of the week after setting the
time and a day of the week, the set mode of the current time will terminate and the operation will start. If a
day of the week is set, the time is fixed. If a day of the week is not set, the contents of the setting are
deleted.
OPERATION
MANUAL OPERATION
Operation of the heater is under the direct control of the user. Heat output will, however, be automatically
adjusted in accordance with the room temperature registered by the temperature sensor.
1. Turn Heater ON
A. Press ON/OFF button to “ON” position. The current room temperature and the set temperature will be
shown on the button digital indicator. ON lamp will start to flash and then blower motor and ignition will
start. This lamp will continue to flash during the preheating time.
B. After approx. 1.5 – 4 minutes ignition will take place. (*) After ignition, ON lamp will change flashing to
continuous. Circulation fan will turn on after approx. 2 minutes.
Note: (*) Pre -heating depends on the room temperature.
Room temperature: below 34˚F Approx. 4 minutes
34˚F - 61˚F "2 minutes
over 61˚F "1.5 minutes
10
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 10

2. Adjusting Room Temperature
A. Press “HOUR” or “MIN.” button. ˚F or ˚C will start to flash.
Note: “HOUR” or “MIN.” button will change the temperature in increment of 2˚F (1˚C).
B. Press “MIN.” for up and “HOUR” for down. Room temperature can be set from 50˚F (10˚C) to 90°F (32˚C).
(Initial setting : 56˚F (13˚C))
C. When room temperature reaches the selected setting, heater will automatically shift to “MED” or “LOW”
burning mode to maintain the desired temperature.
When room temperature exceeds the selected setting by approx. 4˚F (2˚C), the heater will automatically shut
off. As room temperature drops, the heater will automatically re-start to maintain the desired temperature.
POWER SAVER OPERATION
The Power Saver mode reduces the frequency of ignition actions, to save electric consumption.
Press the POWER SAVER (DAY SELECT) button “ON” while in operation to start the operation of the “POWER
SAVER”. “POWER SAVER” sign will be shown on the digital indicator.
When the room temperature exceeds the selected setting by approximately 10˚F (6˚C), the heater will
automatically shut off. As the room temperature becomes lower than the selected setting, the heater will
automatically re-start to maintain the desired temperature.
Approx. +4˚F
Approx. +1˚F
SET
TEMP.
High Medium Low Off Re-lgnition
11
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 11

CHILD LOCK OPERATION
Press the CHILD LOCK (CLEAR) button for more than 3 seconds to set the child lock while in operation or not in
operation. “CHILD LOCK” sign will be shown on the digital indicator.
If the ON/OFF Switch is pressed while the Child Lock is on while in not operation, you can hear the beep sound,
but the unit does not start. If the ON/OFF Switch is pressed while the Child Lock is on while in operation, the
heater will automatically shut down with a beeping sound. “CHILD LOCK” on the digital indicator will flash and
“OFF” will be shown on the digital indicator.
To release the warning, press the CHILD LOCK (CLEAR) button for more than 3 seconds.
Approx. +10˚F
Approx. +1˚F
SET
TEMP.
High Medium Low Off Re-lgnition
12
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 12

WEEKLY TIMER OPERATION
1. Set the Weekly Timer
Note: The following programs are set at the factory in advance.
After setting the current time and a day of the week, press the “TIMER” button to enter the weekly timer setting
mode. The “TIMER” is shown on the display. When the “TIMER” button is pressed during setting of the weekly
timer, the “TIMER” sign disappeared and the current clock time and a day of the week are shown on the display.
Note: You cannot enter the weekly timer setting mode, while in operation and AUTO operation mode, on.
1) Select the program number
Press the “▲MIN.” button or the “▼HOUR” button to select the program number.
The number of program numbers is 30. The non-set program number will flash on the display. In case of the first
setting of the weekly timer, “P01” is shown on the display and will blink. In case that the program is already set,
the next number of the biggest setting program number is shown on the display. If the program is set until “P30”,
“P30” is shown on the display and will blink. Even though all program number are set to “P30”, if there is any
non-set program number, the smallest non-set program number is shown on the display.
When pressing the “▲MIN.” button, the sign will change as follows.
“P01” ➞“P02” ➞··· ➞“P29” ➞“P30”
When pressing the “▲MIN.” button at the position of “P30”, you can hear a beep sound and “P01” is not
changed any more.
When pressing the “▼HOUR” button, the sign will change as follows.
“P30” ➞“P29” ➞··· ➞“P02” ➞“P01”
When pressig the “▼HOUR” button at the position of “P01”, you can hear a beep sound and “P01” is not
changed any more.
Example:
In case that “P01” and “P02” programs are set and “P03” is not set, the display shows as follows.
“P01” – solid ⇔“P02” – solid ⇔“P03” – flashing 3
In case that “P01” and “P04” programs are set and “P02” and “P03” are not set, the display is indicated as
follows.
“P01” – solid ⇔“P02” – flashing 3 ⇔“P03” – flashing 3 ⇔“P04” – solid ⇔“P05” – flashing 3
When a non-set program number is shown on the display, all of a day of the week will blink.
Press the “SET” button to move to the next step (Set the timer).
The program number memory is cleared by holding the “CLEAR” button continuously for 3 seconds.
Program #
P01
P02
P03
P04
P05
P06
P07
P08
Clock Time
AM 6:00
AM 8:30
PM 5:00
PM 11:00
AM 7:00
AM 10:00
PM 4:00
PM 11:00
Temp.
68˚F (20˚C)
62˚F (16˚C)
68˚F (20˚C)
62˚F (16˚C)
68˚F (20˚C)
62˚F (16˚C)
68˚F (20˚C)
62˚F (16˚C)
Day
“MON” “TUE” “WED” “THU” “FRI”
“MON” “TUE” “WED” “THU” “FRI”
“MON” “TUE” “WED” “THU” “FRI”
“MON” “TUE” “WED” “THU” “FRI”
“SUN” “SAT”
“SUN” “SAT”
“SUN” “SAT”
“SUN” “SAT”
13
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 13

2) Set the timer
The timer is shown on the display. (In the case that the timer time is not set, dashes are shown on the display.)
Press the “▲MIN.” button or the “▼HOUR” button to set timer time. “AM 12:00” will be shown on the display.
(The all signs except the colon will blink.)
When pressing the “▼HOUR” button, the sign will change as follows.
“AM 12:00” ➞“AM 1:00” ➞··· ➞“AM11:00” ➞“PM 12:00” ➞“PM 1:00” ➞··· ➞“PM 11:00” ➞AM 12:00” ➞···
When pressing the “▲MIN.” button, the sign will change as follows.
“AM 12:00” ➞“AM 12:10” ➞“AM 12:20” ➞“AM 12:30” ➞“AM 12:40” ➞“AM 12:50” ➞“AM 12:00” ➞···
Press the “SET” button to complete the setting of the timer time and to move to the next step (Set the
temperature of the Program Number).
In case that the “SET” button is pressed when showing the bars sign on the display, you can hear the beep
sound and cannot move to the next step.
3) Set the temperature of the Program Number
The set temperature “70” will be shown on the display and it will blink.
Press the “▲MIN.” button or the “▼HOUR” button to set the temperature of the program. The “▲MIN.” button or
the “▼HOUR” button will change temperature every 2˚F (1˚C).
Press the “SET” button to complete the set the temperature of the program and move to the next step (Set a
day/s of the week for the Program Number).
4) Set a day/s of the week for the Program Numver
The “dAy” sign will be shown on the display and the “SUN” will blink. Press the “▲MIN.” button or the “▼HOUR”
button to set a day of the week, When pressing the “▲MIN.” button, that day is turned on. The day of the week
will light and will more to the next day automatically. When pressing the “▼HOUR” button, that day is turned off.
The day of the week will go off and will more to the next day automatically. When pressing the “DAY SELECT”
button, the display will show the next day of the week without setting. The sign of a day of the week will change
as follows.
“SUN” ➞“MON” ➞“TUE” ➞“WED” ➞“THU” ➞“FRI” ➞“SAT” ➞“SUN” ➞···
Press the “SET” button to complete the set of a day of the week of the program and it will go back to the select
of the program number. In case that a day of the week is not set, when pressing the “SET” button, you can hear a
beep sound and cannot move to the next step.
14
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 14

2. Activate Weekly Timer Operation
During operation (in ON position), press the “AUTO” button to turn on the weekly timer operation mode. However, if no
program are set, you will hear the beep sound and cannot turn on the weekly timer operation mode. Press the “▲MIN.”
button or the “▼HOUR” button to change the set temperature. However, if the next program starts, the temperature will
be changed to the temperature of the next program.
During operation, press the “TIMER” button to enter the weekly timer set mode (Select the program number). If
the “TIMER” button is pressed during the setting of the weekly timer set mode, the weekly timer set mode is
turned off. Change of setting is applied as soon as the AUTO operation is turned on.
MANUAL COMBUSTION
Important: This feature is for testing purpose only!
This heater can also be kept burning at desired combustion mode (High, Medium or low) manually, regardless of
room temperature.
1. Press the “▲MIN.” button and “▼HOUR” button at the same time for more than three (3) seconds when ON /
OFF button is “ON”.
2. P1, P2 or P3 will be displayed on the Digital Indicator;
P1 = Low mode
P2 = Medium mode
P3 = High mode
Then select desired combustion mode by pressing “▲MIN.” or “▼HOUR” button. “▲MIN.” button changes
combustion mode to higher, “▼HOUR” button changes combustion mode to lower.
3. To clear, press the “▲MIN.” button and “▼HOUR” button at the same time for more than (3) seconds until
normal temperature display returns.
AUTOMATIC CLEANING MODE
When the heater has been burning continuously for two hours at its highest setting, the burner will automatically
start an auto clean procedure. The display will show the auto cleaning code cl:05 running back to cl:01. The
procedure takes 5 minutes to clean the burner automatically, while the heater will burn at its lowest setting. When
the burner is clean again, the heater will automatically switch back to the highest setting again.
TURNING HEATER OFF
Press ON/OFF button to “OFF” position. ON lamp will flash and will go out. Circulation fan and blower motor
continue to run for approx. three (3) minutes to cool down the heater. Make sure ON lamp goes out when the fan
stops.
15
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 15

Check
Louver
Fuel strainer
(inside)
Ciraulation air filter
Check
SECTION F:
ROUTINE MAINTENANCE
FOR OPTIMUM HEATER PERFORMANCE, THE PARTS SHOWN BELOW SHOULD BE CLEANED REGULARLY:
1. Clean Louvers (ONCE A MONTH)
Dust and stains should be wiped off louvers with a damp cloth.
2. Clean Circulation Air Filter (ONCE A MONTH)
A mesh filter is located on heater cabinet rear side.
Once a week slide the filter up to remove and it should be
vacuumed clean.
3. Check for Fuel Leaks (REGULARLY)
Make it a habit to check for any sign of fuel leakage along the fuel line and at all
joints. Fuel leaks may lead to risk of fire.
4. Check Flue Pipe Area (ONCE A MONTH)
Check the flue pipe joint to make sure connection is firm. Use a vacuum cleaner to
remove any dust or pet hair.
CAUTION:Be sure to turn off and unplug heater before performing any checks or cleaning.
CAUTION:Allow heater to cool completely before cleaning or maintenance.
16
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 16

5. Clean Fuel Strainer (ONCE A SEASON)
The strainer of the fuel sump should be cleaned once a season and before
starting the heater at the beginning of each season.
(a) Close the valve closest to the heater.
(b) To catch the fuel which will drain out, set the Oil catch below the Strainer
cover, with a small container under it.
(c) Loosen the two screws from the Strainer cover and remove.
(d) Remove the strainer and wash with kerosene or fuel oil.
(e) Return the strainer to its original position. Replace strainer cover and screw
to secure.
(f) Wipe away any spilled fuel.
(g) Open the valve in the fuel line. Check for fuel leakage.
Note: At the end of each season unscrew the drain screw to remove all the remaining fuel from the fuel
sump. Be sure to follow procedure A and B listed above and replance Drain screw.
6. Recommended Periodic Maintenance
As a state-of-the-art furnace, your heater requires periodic inspection and service by an authorized technician
to insure optimum, trouble free performance. This inspection should include: a combustion check; flue pipe
check; burner assembly check; cleaning all necessary parts and replacing gaskets as needed. Please ask
your authorized Toyostove dealer for details and scheduling. When using Ultra Low Sulfur Diesel (ULSD) or
Ultra Low Sulfur Heating Oil the heater should be serviced at least every two years because the distillation of
ULSHO is heavier than 1-K Kerosene and No. 1 Fuel Oil. When using 1-K Kerosene or Low Sulfur No. 1 Fuel
Oil your heater can be serviced less frequently.
AUTOMATIC IGNITER CLEANING SYSTEM
When the heater is on and clock is set (see “set Clock” on page 9), it will automatically stop and clean the igniter
every day at 2:00 AM and will display “CL” on the digital indicator. After the cleaning mode is finished the heater will
automatically re-ignite and continue to burn again.
The igniter cleaning mode helps prolong the igniter life.
MANUAL IGNITER CLEANING SYSTEM
Heater will clean igniter for ten (10) minutes manually.
1. When ON/OFF switch is “OFF”, press the “SET” button and “CLEAR” button at the same time for more than
three (3) seconds.
2. Display will appear “CL:10” on Digital Indicator. Cleaning will begin and end without any additional input.
Note: Cleaning igniter is important to prolong igniter life. It is recommended that the igniter be cleaned once a
month if the time is not set.
Drain
Screw
Oil catch
Fuel
Strainer
Strainer
gasket
Strainer
cover
17
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 17

The following symptoms are normal during operation of the heater.
White smoke or smell at initial use after
purchase.
Flames flashing for a few minutes after
ignition.
Occasionally makes “cracking” noise when
heater is ignited or extinguished.
Part of the heat chamber or the heat
exchanger is heated to a cherry red color.
Warm air will not blow as soon as ignited.
Audible chugging sound from fuel pump
when started first time or after running out
of fuel.
“Ticking” noise.
Machine oil or dust burns off of the surfaces the
surfaces of the burner or heat exchanger.
The burner is cold and igniter is kept running
for a while after ignition.
Expansion and shrinkage of metal parts when
they are heated or cooled.
To prevent uncomfortable cool air from
coming out at the beginning, the circulation fan
start up is delayed.
Air is in the pump. However, noise should
stop within 1 minute.*
Noise of fuel pump in operation.
Normal.
Normal.
Occasional yellow flickering in blue flame. Normal.
When heater is started
or extinguished.
When heater is
in operation.
CONDITION REASON
SECTION G:
TROUBLESHOOTING
NOTE BEFORE REQUESTING FOR REPAIR AND SERVICES
ERROR CODE
E– 0
E– 23
E– 6
E– 2
E– 2 / E– 6
E– 8
E– 12
E– 13
E– 13
E– 22
CAUSE
Power failure (low voltage, unstable
frequency)
Primary flame (Flame sensor) is
malfunction and/or dirty
Fuel line malfunction
Out of fuel / no flame
Flue pipe blockage or leak
Blower motor malfunction
High limit switch activated
Burner thermistor failure
Flue pipe blockage or leak
Ignition failure three times
SOLUTION
Check power source.
Consult your dealer for cleaning and in
spection.
Consult your dealer.
Check fuel gauge on fuel tank; refuel.
Consult your dealer. / Check flue pipe.
Consult your dealer.
Clean circulation fan filter and remove any
obstructions, allow your heater to cool
completely and re-ignite.
Consult your dealer.
Check flue pipe. / Consult your dealer.
Consult your dealer.
*If sound from fuel pump does not decrease and heater shuts off, check:
1. Push red reset button on fuel sump once. DO NOT hold down.
2. Insure that all valves are open and filter is clear.
3. Insure external fuel tank has fuel and filters are clean.
Should problems arise during operation or ignition, use this chart to determine the cause and the proper steps to
take. Be sure to unplug heater and allow to cool completely before taking corrective measures.
In the event that heater should extinguish itself, without any action or your part, you should look to the digital
indicator for any of the following error codes.
18
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 18

At the end of each heating season, or when you do not plan to use your heater for an extended period, the
following procedures are recommended.
1. As the end of the season approaches, calculate your fuel purchases so that you can use up all the fuel you
have on hand. When fuel is stored for over six months, its quality may deteriorate. The use of such fuel will
have an unfavorable effect on heater operation.
2. If your heater needs any service or repair, now is the time to call your dealer and get it done before storage.
That way your heater will be ready for immediate use when the next heating season begins.
3. If you plan to store your heater in place,
(a) Disconnect power supply.
(b) Close the main tank valve.
(c) Remove all fuel from the fuel sump and clean the fuel strainer.
(d) Wipe off any stains or dust on heater with a damp cloth, then wipe once
again using a dry cloth.
4. To store heater in another location,
(a) Disconnect heater.
(b) Close the main tank valve.
(c) Remove all fuel from the fuel sump and clean the fuel strainer.
(d) Disconnect fuel line and flue pipe from the heater.
Note: Fuel remaining in the fuel line may flow out when fuel line is disconnected. Have a container ready
to catch drainage.
(e) Remove any soot accumulated in the flue pipe using a brush and/or vacuum cleaner.
(f) Wipe off any stains or dust on heater with a damp cloth, then wipe once again using a dry cloth.
(g) Put the heater in the original shipping box, and store in a dry place. If original shipping box is not
available, cover the heater completely with a large plastic bag to protect from dust during storage.
(h) Plug exhaust and air intake openings of the flue pipe by using optional caps.
(Part #20479845 and #20474949)
TRANSPORTATION
Take the following measures to avoid fuel leakage during the transportation of the heater.
- Always move the heater in an upright position.
- Always drain fuel from the fuel sump before transportation.
SECTION H:
LONG TERM STORAGE
Dealer
19
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 19

SECTION I:
INSTALLATION
TOOLS NEEDED FOR INSTALLATION
STANDARD INSTALLATION PARTS
Tool Use
Phillips Head Screwdriver Installation of flue pipe, etc.
Electric Drill Drilling hole in wall for flue pipe
Hole Saw, 2-3/4 to 3” diameter Making hole in wall for flue pipe
Pipe Holder (1) (PART #20474963)
Wall Brackets (2 sets) (PART #20479562)
Pipe Stopper (1) (PART #20479864)
The following standard installation parts are enclosed with heater. For alternate installation methods, you may need
to purchase additional accessories which are available from your TOYOSTOVE dealer. See “Accessory Parts”,
page 22.
20
Laser 300_Type A_US.qxd 15.3.26 16:11 ページ 20