Weltem HOTSEN WHO-095 User manual

Far-infrared
Oil Heater
Owner's manual
Please read this manual carefully for your safety
·Thank you for purchasing WELTEM's far infrared heater
·Read this manual carefully prior to using this heater to prevent any
injury and damage.
·Specifications can be changed without prior notice for product improvement

2
This heater applied to the principle of radiant heat blows warm air directly
to users without burning oxygen in the air and is suitable for open areas.
1. Far infrared radiation heating
- By far infrared radiation that is linear, this heater blows warm air widely and directs
exactly warm air to user's intended area
- This heater provides users with pleasant heating incomparable to other heaters
thanks to radiant heat
- Far infrared radiation released enables users to feel more warmth immediately and
is good for bio rhythm.
- This heater is more efficient through immediate heating compared to other heaters
2. A device to get rid of the smell from oil is equipped
- Smell from oil is minimized through recovery system when the unit is not operated
3. Dual side heating
- Both front and rear side heating is available
(Additional cost for protection grill)
4. Various functions (Current temperature on display,
Off-timer, High performance burner, Low noise level,
Current fuel amount on display, Alarm for lack of fuel,
Automatic air purge)
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▶ Features
▶ Name of parts (Front)
▶ Name of parts (Side)
▶ Display / Controller
▶ Safety cautions
▶ Items to check before use
▶ Cautions during use
▶ Routine check / Periodic check
▶ How to install the product
▶ Electrical wiring diagram
▶ Items to check before requesting service
▶ General specifications
▶ Limited warranty
02
03
04
05
07
08
09
10
11
12
12
14
15
Product feature
CURRENT
TEMP
TARGET
TEMP
TIME
EMPTY FUEL
OFF
TIMERBLOWER
TEMP
.
SET
TIME
SET
ALARMHeating
C
F
M
C
F
H
TEMP
BLOWER
TIME
OFF TIMER
POWER
Table of contents

Front
3
Exhaust port
Top grill
Controller / Display
Burner room
Combustion furnace
Name of parts
Heater tube
(Heat exchanger)
Protection grill
Castors
: It is where combustion gas is
released and can be connected
with stovepipe
: Users can control the
operation and see if there
is an error
: Fuel tank and burner are
attached with safety
devices inside burner room
: It is where fuel is combusted
: It is where heated air flows
and far infrared radiation
is released

4
Controller / Display
Overheating
prevention device
Burner motor
Air regulator
Flow meter
Fuel inlet
Temperature sensor
Ignition through high pressure discharge
It releases fuel through high pressure
Refer to page 5-2
Ignition trans
Electronic pump
Air purge screw
Burner
Side
Name of parts

5
Display / Controller
Air purge screw
Air hole
Open
Close
1) Plug the power cord. Current temperature and the fuel amount are displayed.
2)
Press the 'Power ON/OFF' button
- If Fan and Heating icons and current temperature, target temperature and fuel amount are
shown on the display, the LCD display is always lighted up
- This button is for turn on or turn off the unit
- The heater is operated in 8 seconds after fan is operated with blinking heating icon on the display.
※ When the current temperature is 2
℃ higher than target temperature on the temp set or the
time reaches target time, the heater is turned off.
However, there might be no ignition for the first use since purchase with E1 displayed. Please
re-start the heater in this case. Automatic air purge device is equipped in the heater. Refer
to the followings when manually operating air purge device.
① Turn left the air purge screw 2~3 round.
② Re-operate the heater. (push the power button 2 times)
③ Bubble flows out of the air hole. In 10 seconds,
clean fuel flows out of the air hole.
④ Close the air purge screw when clean fuel flows out of the air
hole or ignited successfully.
⑤ Retry if not successful. (request service after 4 times failure)
▶ This product is designed not necessary to purge the air after
refueling when lack of fuel.
Caution : Do not open the air purge screw entirely.
Power ON/OFF
function
Temp
Temperature
set-refer to
category 4
Off Timer
Refer to category 5
Up and Down
function
Time
Time set-refer
to category 3

6
Display / Controller
3) Press the 'TIME' button
- This button is for saving mode by setting heating time
- 'TIME SET' icon and setting outcome (minute) are displayed.
- Setting outcome is controlled with 'UP' and 'DOWN' button
(It is either increased or decreased by 5mins)
- The time is set from 5 to 25mins and the heater is operated and stopped every 30 mins
Example) If time is set to 20mins, the heater is operated for 20mins and stopped for 10mins
4) Press the 'TEMP' button .
- It is for automatic temperature control detecting indoor temperature
- 'TEMP SET'icon and setting outcome (current temperature) are displayed
- Setting outcome is controlled with 'UP' and 'DOWN' button
(It is either increased or decreased by 1
℃ )
- Temperature is set from 0~40
℃
6)
Press the ' ℃ / ℉ ' button
- This is to change from ℃ to ℉ or ℉ to ℃
7)
Press the 'POWER ON/OFF' to turn off the heater
- Burner motor stops working in 5mins after the heater is turned off
- Only current temperature is displayed whereas target temperature disappears
Do not turn off the unit by unplugging the power cord
(It may cause damage to the burner)
Users may smell something burning during the initial operation. It is an
indication of burning the foreign substances. However, it will not last for
more than 1~2 hrs.
When running out of fuel, alarm icon and fuel guage blink
In this case, users are supposed to turn off the heater and refill the fuel
5) Press the 'OFF TIMER' button
- This button is for saving mode
- When selecting the 'OFF TIMER' button, original set time is displayed and 'OFF TIMER'
alarm blinks on the display When pressing the 'OFF TIMER' button after setting
preferred time with 'UP' and 'DOWN' button, 'OFF TIMER' function will work
with blinking 'OFF TIMER' alarm
- Cancel of 'OFF TIMER' function : When pressing the 'OFF TIMER' button, the
'OFF TIMER' alarm disappears and the function is cancelled

Warning
Pay careful attention to the following warning signs intended to prevent the accidents
resulted from the incorrect use.
▶ It is very hot when the heater is under operation, so do not allow children to touch or hang
▶ Make sure to install the flue tube and vent prior to using the heater in the indoor area.
- Material of flue tube should be stainless steel. Length of flue tube must not exceed 4 meters
and number of bend must not exceed 2.
▶ Never move when the heater is under operation. If the heater falls down, it may cause fire.
▶ This product is designed for space heating purpose only. We are not responsible for the trouble
or accidents resulted from the other uses such as cooking, dry and any modification.
▶ Stop operation when fill the fuel.
▶ Only use the fuel stated in the nameplate. Be careful not to let the fuel overflow by watching
scale of flow meter.
▶ Do not leave the containers such as kettle on the exhaust port of the heater. It may cause damage to
heater and bottom of container may be smoked.
▶ Store the heater with cover. Use the heater only after completely cleaning dust or dirt on the bottom.
▶ Do not put any inflammable substances within 3 meters from the heater.
▶ Please use proper electricity referring label on the heater.
▶ When the heater is used outdoor area, protect it from rain or snow and lock the castors
before use.
▶ Clean the heat reflecting plate not to be dirty with dust. If dust is deposited on the bottom of
heat reflecting plate, it may cause fire or deformation.
▶ Open the window once or twice every hour for ventilation when the heater is operating for a long time.
This danger sign warns you of serious injury or death expected when violating the safety rules or instructions.
This warning sign warns you of serious injury or death expected when violating the safety rules or instructions.
This caution sign warns you of injury or product damage expected when violating the safety rules or instructions
Information to observe General prohibition Danger Warning and Caution
No touch Do not use fire Connect ground wire
Danger
Warning
Caution
Cautions
Safety Cautions
7

▶ Get any inflammable substances like gasoline, kerosene, thinner away around from the heater.
▶ Make sure fuel is disel.
- Improper fuel may cause trouble.
▶ Make sure to lock the castors not to move easily before using.
▶ Make sure power supply is 220~240V
- Improper power supply may cause trouble.
Warning
Check power supply
Check fuel
Check castors lock
Items to check before use
Gaso
-
line
kero-
sene
thin
-
ner
Gaso
-
line
Die-
sel
CURRENT TEMP
TARGET
TEMP
TIME
EMPTY FUEL
OFF TIMERBLOWER
TEMP
.
SET
TIME
SET
ALARMHeating
C
F
M
C
F
H
TEMP
BLOWER
TIME
OFF TIMER
POWER
CURRENT TEMP
TARGET
TEMP
TIME
EMPTY FUEL
OFF TIMERBLOWER
TEMP
.
SET
TIME
SET
ALARMHeating
C
F
M
C
F
H
TEMP
BLOWER
TIME
OFF TIMER
POWER
No inflammable
substances around
the heater!
Check fuel
is diesel.
Check voltage of
power supply
: Check if there are any inflammable substances
CURRENT TEMP
TARGET
TEMP
TIME
EMPTY FUEL
OFF TIMERBLOWER
TEMP.
SET
TIME
SET
ALARMHeating
C
F
M
C
F
H
TEMP
BLOWER
TIME
OFF TIMER
POWER
AC220V
8

Cautions during use
Caution
Caution
Caution
: Ventilation
: Away from Children
: No foreign substances
▶ Open the window once or twice every hour for ventilation when heater is used in closed area.
- It may cause lack of oxygen if heater is operated for a long time without ventilation.
▶ It is very hot when the heater is under operation, so do not allow children to touch or hang.
- Children may be hurt.
▶ Do not put any foreign substances inside heater.
- It may cause trouble or fire.
Ventilation is
necessary for indoor
usage
Take care of
children
Do not put any
foreign substances
inside heater.
CURRENT TEMP
TARGET
TEMP
TIME
EMPTY FUEL
OFF
TIMERBLOWER
TEMP
.
SET
TIME
SET
ALARMHeating
C
F
M
C
F
H
TEMP
BLOWER
TIME
OFF TIMER
POWER
CURRENT TEMP
TARGET
TEMP
TIME
EMPTY FUEL
OFF TIMERBLOWER
TEMP
.
SET
TIME
SET
ALARMHeating
C
F
M
C
F
H
TEMP
BLOWER
TIME
OFF TIMER
POWER
CURRENT TEMP
TARGET
TEMP
TIME
EMPTY FUEL
OFF TIMERBLOWER
TEMP
.
SET
TIME
SET
ALARMHeating
C
F
M
C
F
H
TEMP
BLOWER
TIME
OFF TIMER
POWER
9

Caution
Caution
Caution
: Routine check
: Routine check
: Periodic check
▶ Make sure to check or clean only after the combustion of heater is stopped.
▶ Check if the fuel tank leaks
▶ Check if the combustion furnace or heating tube is corrupt or damaged.
▶ If the dust is deposited on heat reflecting plate, completely remove or clean the dust.
▶ Check if soot occurs in the exhaust port.
▶ The burner is adjusted to be suitable for the performance of heater. Avoid the unauthorized
modification of adjustment. If you inevitably need to adjust the burner, consult with the agency
where you purchased the heater or service center.
▶ Make sure to clean the heater with cloth wet by neutral detergent or dry cloth only after the
heater is completely cooled with the power plug unplugged.
▶ If you clean the heater with water, it may cause electric shock or damage to the product.
▶ Combustion furnace and Heater tube (heat exchanger) :
Check if there is any soot once a year and clean it if there is.
▶ Bottom heat reflecting plate : Check if there is any corruption or dirt once a year
and clean it if it is dirty. Replace if it is severely corrupted.
▶ Fuel filter (Inside fuel tank) : Check visually if there is any corruption once a
year and replace if it is corrupted.
▶ Castors : Check damage or installation once a month. If there is problem, fix it.
Routine check / Periodic check
10

How to install the product
▶ Install the heater in the flat area. If you install the heater in sloped area, combustion furnace
may be damaged by the irregular combustion.
▶ Install the flue tube for the indoor use. If the flue tube passes through the inflammable wall,
wrap the inside wall more than 3cm with nonflammable insulation.
▶ Use stainless steel tube (75mm diameter) for the flue tube. Length of tube must be shorter
than 4m and number of bent must not exceed 2.
▶ If the bent number of flue tube is more than 2 or when the length of tube is longer than 4m,
it may cause incomplete combustion.
Slopped
Nonflammable insulation
(Example of flue tube installation)
More than 30Cm
from the ceiling
More then 30Cm
More
then
10Cm
11

Electrical Wiring Diagram
AC220V
AC250V/5A
Gray2P
Black2P
Green
Green
Yellow
Yellow
Black
Black
White
Black
Green
Overheat
Sensor
Inversion
Switch
Flow Meter
Temperature
Sensor
Red
Green
Black
Yellow
Black
Brown
Phototube
Electronic pump
Ignition Trans
Fan Motor
Burner
AC220V
AC250V/5A
Gray2P
Black2P
Green
Green
Yellow
Yellow
Black
Black
White
Black
Green
Overheat
Sensor
Inversion
Switch
Flow Meter
Temperature
Sensor
Red
Green
Black
Yellow
Black
Brown
Phototube
Electronic pump
Ignition Trans
Fan Motor
Burner
12
▶ If following problem occur please carry out remedy referring the table below.
Request service if problem continues.
Symptom Possible reason/Check Remedy
All lamps are off on the
operation panel
- Power interruption
- Unplugging
- Blown fuse
- Connect Power
- Replace fuse
Repeat on and off - Time set is selected
(check the lamp) - Select Temp set
Heater is operating but
Fuel gauge lamp is off - Fuel gauge wire is disconnected - Connect the wire
Burning smells during the
initial operation
- Foreign substances are burnt
inside the gasket
- No action is needed. It will
disappear after 1 ~ 2 hours
Severe fuel smell
- Smells when turning off the heater
right after starting the heater
- Dropping fuel when refueling
- Keep operation more than
15 minutes
- Remove the dropped fuel
Room temperature on dis-
play is higher than normal
- Check location of temperature
sensor on rear of the heater
(It may occur if the sensor is
installed inside)
- Locate the sensor at the
correct position.
Items to check before requesting service

Items to check before requesting service
13
▶ Carry out remedy refer to the following instructions.
Please request service when problem continue.
● When error codes appear, find the correct reason to restart the heater
Press 'Power ON/OFF' button two times to restart the heater
Display Possible cause Check and remedy
E1. No ignition Burner is not ignited
- Lack of fuel
- Fuel pipe is filled with air ( → Drain the air)
- Phototube is contaminated ( → Clean the phototube)
E2. Phototube
- Phototube error
- Residual flame is
detected.
- Check if the phototube is loose ( → Fix the phototube)
Phototube is defective (→ Replace the phototube)
- This phenomenon may occur when turning off the
heater right after the combustion
(→ Firmly connect temperature sensor)
E3. Temperature
sensor
Temperature sensor
trouble
- Check if the temperature sensor connector is loose
(→ Firmly connect temperature sensor)
E4. Overheat
sensor
Product is over-
heated
- Check if there is any burnt sign inside the burner
(→ Request service)
- Check if overheat protector wire is disconnected
(→ Operate the heater again after connecting the wire)
E5. Tilt Heater is tilted
- Tilt error may occur when the heater is shaken
or moved (→ Operate the heater again)
- Inversion switch wire is disconnected
(→ Operate the heater again after connecting the wire)
E6. Lack of fuel No fuel - Refuel and operate the heater again
E7.
Burner fan
failure
Burner fan failure
- Sensor for burner fan opertaion does not reach minimum
voltage ( → Request service center)
Hi Temperature is over
50 degree C
- Check if the temperature sensor is installed inside
(→ Install the sensor outside)

▶ Specifications can be changed for better quality and performance without prior notice.
General specifications
WHO-095 WHO-115 WHO-135
Fuel Diesel Diesel Diesel
Fuel Consumption 1ℓ/h 1.1ℓ/h 1.41ℓ/h
Heating capacity 9,000Kcal/h 11,000Kcal/h 13,000Kcal/h
Heating area
59.6 ~ 77.5㎡ 72.9 ~ 94.7㎡ 86.1 ~111.9㎡
Power supply
AC 220V 50/60Hz
Fuel Consumption 40W (Running) 40W (Running) 40W (Running)
Fuel tank capacity 30ℓ 30ℓ 45ℓ
Dimension (WxDxH)
973×320×979 mm 1305×320×988 mm
Weight
40 Kg 58 Kg
WHO-155 WHO-175 WHO-205
Fuel Diesel Diesel Diesel
Fuel Consumption 1.52ℓ/h 1.77ℓ/h 1.9ℓ/h
Heating capacity 15,000Kcal/h 17,000Kcal/h 20,000Kcal/h
Heating area
99.3 ~129.1㎡ 112.6 ~146.4㎡ 132.5 ~172.3㎡
Power supply
AC 220V 50/60Hz
Fuel Consumption 40W (Running) 60W (Running) 60W (Running)
Fuel tank capacity 45ℓ 45ℓ 45ℓ
Dimension (WxDxH)
1305×320×988 mm 1305×320×1158 mm
Weight
58 Kg 63 Kg
Item
Item
Model
Model
14

This product has been produced under the strict quality control.
We guarantee the quality of this product.
The product is exchanged or repaired, and you will get a refund in accordance
with the consumers' damage compensation regulations.
We will provide the free repair service during the warranty period.
We will repair the defective product at actual cost after the warranty period.
Model No.
Warranty
period
1 year from the
date of purchase
Date of
purchase
Address:
Name: Phone No. :
Phone No. :
Name:
Address (Shop name):
User
Shop
Far-infrared tube heater
1. Defect or trouble resulted from the customers' carelessness
2. Defect or trouble resulting from disasters such as flood, fire and
lightning stroke
3. Defect or trouble resulted from the unauthorized repair or modification
4. Defect or trouble resulted from the use of unauthorized power
5. Defect or trouble resulted from the wrong installation
6. Defect or trouble resulted from the use of other fuels besides the
designated fuel.
What this warranty does not cover:
Manufacturer
TEL: [phone] (main phone No.) FAX: [phone]
Limited Warranty
Make sure to fill in the following blanks upon sale of product:
Product
Name
WELTEM CO., LTD.
118, Jayumuyeok 3-gil, Masanhoewon-gu, Changwon-City,
Gyeongsangnam-do, 630-813 Korea
http://www.weltem.com

118, Jayumuyeok 3-gil, Masanhoewon-gu, Changwon-City, Gyeongsangnam-do, 630-813 Korea
TEL: [phone](ext.2) FAX: [phone] http://www.weltem.com