Kiturami KRH-35B User manual

su 120427

Hybrid Boiler (for both oil + firewood) : KRH - 35B
User s Manual
Hybrid Firewood Boiler
Kiturami
Make sure to keep the users manual in the vicinity of the
boiler, after reading it.
The users manual describes the features of the product and the safety
requirements. Please read and make sure you fully understand the users manual
before using the products to ensure an extended lifecycle.

Thank you for purchasing a KITURAMI boiler.Please read carefully
and make sure you fully understand the user's manual to ensure
correct operation and maintenance of the product, and keep the
manual safe. If the boiler operates abnormally or you have any
questions about its functions, etc., please refer to the manual.
Structure and Name
How to Operate
Precautions for Operation
How to Clean
How to Install
Test Operation and Installation
of the Indoor Thermometer
Specifications for the Boiler
Troubleshooting
03
04
08
10
11
16
18
19
This symbol indicates hazardous situations where severe injury to or the death of the user may result.
This symbol indicates the possibility of severe injury to the user.
This symbol indicates the possibility of minor injury to the user or damage to the product.
▲Precautions for Safety
※The user's manual uses symbols to indicate that caution should be exercised to prevent accidents caused
by incorrect operation, or damage to the users and their properties. Please read carefully and make sure
you fully understand the symbols and their meanings to ensure correct operation of the product.
※The precautions are classified into three categories: "DANGER", "WARNING"and "CAUTION".
DANGER
WARNING
CAUTION

Burner
door
Controller
Flue
Handle
movement
Flame monitoring
window
Flue cleaning
port
Burner case
Control Box
<Front>
3
Structure and Name
KRH-35B
Room thermostat
( CTR-6070 )
▶Components of KRH-35B
The user's manual, room thermostat (CTR-6070), cleaning device, SUS oil hose, and Nitrogen vessel
Hot water
Outlet
Hot Water
Inlet
Flue
Heating
Water Outlet
Back of flue
cleaning port
Heating
water
collection
<Right>
Ho t W at er
Te mp .
Op er at io n
PO WE R
RO OM
BA TH
Heating water
collection

How To Operate
4
Name of Each Part of the Room Thermostat (CTR-6070)
LED
DISPLAY
LED
VOLUME
S/W+LED
S/W+LED
Switch
Display of current temperature in numbers
LED is lit if the room controller works.
Room temperature setting switch
Setting and display for the room function
Setting and display for the bath function
This switch is used to turn the power of
the boiler on/off. After turning off and
on, manual return is done.
In case of am abnormality in the boiler, the LED flashes.
If the Option function works, display of the operation.
Flash of LED in case of a boiler abnormality (check)
(The LED display)
Operation at set temperature
Initial mode
Option function: Heating water temperature
setting function
Water temperature is maintained at 83℃(adjustable).
Automatic return to heating function after 2.5 hours
Option function: Hot water temperature setting function
Manual return (restart) is possible up to 3
times. (Clear after 5 minutes)
NO
1
2
3
4
5
6
Name Component Function Remarks
Operation
/Check
Room temperature
setting switch
Function
selection
Room
Bath
Power/
Restart button
Current
temperature
Hot Water
Temp.
Operation
POWER
ROOM
BATH
5
4
3
2
1

How To Operate
▶Other function of the boiler
To keep the boiler from freezing and bursting, the circulation pump functions when water temperature sensor
falls below 8 degrees, and it stops when the temperature goes up till 10 degrees.
Freezing and burst prevention function.
After lifting low water level, the circulation pump will be operating for 2 minutes so as to expel air.
(cf) Bath mode isn't included.)
Low water level test function
- flashing after the current
indoor temperature
switched to heating water
temperature
1. Press indoor button for 5 seconds.
How to change the heating water temperature
Temperature
setting
ON
Blowing / Exhausting Fan Circulation Pump
Remarks
OFF ON OFF
- In the firewood/oil mode, the blow/exhaust fan motion and CP operation temperature by season.
5
Sumer
Autumn
spring
early
winter
winter
45°C
50°C
55°C
60°C
65°C
70°C
75°C
80°C
85°C
30°C
35°C
45°C
55°C
65°C
35°C
40°C
50°C
60°C
70°C
44°C
lv. 3 lv. 2 lv.1
49°C
59°C
69°C
74°C
45°C
Stop
50°C
60°C
70°C
75°C
42°C
47°C
57°C
67°C
72°C
34°C
38°C
45°C
52°C
55°C
Hot Water
Temp.
Operation
POWER
ROOM
BATH
Hot Water
Temp.
Operation
POWER
ROOM
BATH
70
- Press the button
to set 85 degrees.
2. Press the indoor button to set 85 degrees.
3. It will be set after 5 second.
Hot Water
Temp.
Operation
POWER
ROOM
BATH
Hot Water
Temp.
Operation
POWER
ROOM
BATH
85

How To Operate
6
Name of Each Component (CTC-3500)
Boiler water
temperature
Water temperature
in the boiler
Firewood lamp
Oil burner is not
operated.
Burner operation
lamp
Oil burner is in
operation.
Circulation pump
lamp
The water is being
circulated.
Fuel selection button
You can set the heating
water temperature.
You can set the
preferred temperature.
Low water
level lamp
The water is
insufficient in
the boiler.
Restart button
At occurerrence
of a problem in
the boiler, you can
initialize the
boiler.
Firewood / Oil
combustion lamp
After the combustion
of the firewood, the oil
burner goes into
operation.
Fire button
You can combust the
firewood at first for 15
minutes.
Wood hatch check
lamp
The lamp is turned on
if the door is opened.

7
How To Operate
How to Ignite the Firewood
▶Manual ignition
▶Automatic ignition
1) Ignition through using tinder
2) Ignition Through Using the wood
3) Insert wood in a good size enough to close the wood hatch completely.
ex) The burning time may be differ with the kind of wood and, in general, 20kg of firewood may
be burnt for 4-5hours.
Stack completely dried wood (thin wood) in the firebox in a zigzag pattern and light the firewood
using paper or cardboard box scraps.
Continuous combustion is possible through adding more firewood as soon as wood is lit.
<When inserting firewood.>
Insert wood in a good size enough to close the wood hatch completely
Put the "Tinder" in the central part of the firebox, add the firewood, and light the Tinder using
papers, etc.
Keep the ashtray hole open until the firewood is ignited to a certain level. When the firewood is
completely lit close the hole.
1) Igniting Through Using Oil Burner
Add firewood through the wood hatch and press 'start to ignition' button on the controller in
order to activate the oil burner.
The longest operation time of the oil burner is 15 minutes; if the firewood is does not light up
after 15 minutes. press 'Fire' button in order to operate the oil burner again,
When the firewood is lit, turn the Fire button off.
Note: During the time of lighting the firewood, do not open the burner door so as to avoid the
risk of fire or burning yourself.

Precautions
8
The boiler shall be inspected once a year.
Request your distributor to conduct periodic inspections of the boiler
(i.e., once or twice a year).
You can operate the boiler safely only when the boiler has been properly inspected
Prevent frozen rupture during winter season.
If the product is connected to the pipes, and the pipes are fully filled with water,
connect the power cable to the outlet. If there is insufficient water in the pipes,
then supply water to the pipes in accordance with the water makeup method.
Operating the rupture prevention circuit when the pipes are filled with insufficient
water may cause the pump to run idle or cause overheating or failure of the pump.
Fully insulate the pipes.
Take the appropriate actions to prevent a frozen rupture by, for example, winding
heating coils around the exposed pipes in the cold area. (It is also desirable to
install the pipes adjacent to the heating pipes for insulation.)
Do not wrap the water drain valve with an insulator.
When you do not use the boiler for an extended period, drain the water from the
boiler to prevent a frozen rupture, and disconnect the power cable from the outlet.
The exposed pipes should be wrapped with an insulator 25mm thick or more to
prevent the pipes from freezing (50 mm or more in cold areas)
If you leave your home for a number of hours, open the hot water tap in the kitchen
slightly to allow a small volume of water to flow into the hot water pipe to prevent a
frozen rupture of the tap water pipe.
Use the power outlet exclusive for the boiler, and be cautious for leakage
Operate the boiler only after checking the voltage.
Do not touch the power cable or operate the boiler with wet hands to avoid
electric shock. Never clean the boiler with water as a leak, shock or failure of the
boiler may result.
Do not place combustible or inflammable materials in the vicinity of the boiler.
Install a fire extinguisher in the boiler room.
Do not stack wooden materials or place inflammable or combustible materials in
the vicinity of the boiler, and keep the area surrounding the boiler clean.
Never touch the stovepipe while you operate boiler.
You may get burnt.
Never disassemble, repair or modify without approval of the manufacture.
Shock or fire may result.
Contact the after-sales service center when the boiler needs repairing.
Precautions
DANGER
WARNING
WARNING
WARNING
WARNING
CAUTION

9
Precautions
Install the boiler in a structure where cleaning is easy.
The use of wet wood requires frequent cleaning due to resin; use dry fire wood if
possible.
If you use wet wood, you should clean the boiler every 3~4 days.
Use the firewood considering the function of the wood.
If the mode is set for oil, the use of firewood is strictly prohibited.
If any accident occurs in violation of this warning, the company will not be
responsible for any situation that occurs.
In a power failure, be careful about overheating.
If electric power is not supplied, the blower and circulation pump do not work and
the risk of overheating and fire is increased.
Do not add an excessive quantity of fuel at anytime.
If an excessive large quantity of fuel is added, the hot water or steam can burn
you, as overheating is likely to occur.
When opening/closing the wood hatch, be careful to not burn youself.
When opening the wood hatch, open the door in a lateral direction in order to
avoid possible heat burns.
After adding firewood, tightly close the inlet.
The sparks may cause a fire in the surrounding area.
Cautions in Using Wood
※Our products DO NOT gurantee any flaw occurred by using material EXCEPT
wooden fuel like oval briquets, brown coals, etc,.
WARNING
WARNING
WARNING
WARNING
WARNING
CAUTION

How to Clean
10
Remove the water residue
from the oil tank once a year.
You should replace the boiler's oil filter
once or twice a year just as you replace
your car's oil filter every three month.
You can easily clean the oil tank by only
brushing the tank.
※Caution: Please clean the product after cooling down completely
※Caution: It may cause burn when separating cleaning port while cleaning
▶ How to clean the multipurpose combustion chamber
Especially, if firewood is used, the boiler should be cleaned at least once a week in order to
save on fuel costs.
▶How to clean
the monitoring
window
(made of mica)
When you cannot monitor the internal flames due to black dirt, loosen the
cap, wipe off the quartz glass, and reassemble the monitoring window.
Assemble and disassemble the monitoring window after the flames
have all gone out and pay attention to maintain air-tightness.
Flame
monitoring
window (mica)

11
How to Install
Conditions to be checked prior to installation
The product shall be installed by authorized engineer pursuant to the methods
stipulated in the user's manual.the product. Always use tap water if possible.
Install a boiler suitable for the purpose of use and the CH area.
Install the boiler in a location such that exhaust gas or noise from the boiler does not
cause inconvenience to the users or to residents in the vicinity of the boilers location.
Do not install the boiler in a location adjacent to areas frequently accessed by people,
such as a staircase or emergency exit.
Secure sufficient space for the operation, inspection and repair of the boiler (1 m or
more at the front,rear, and left- and right-hand sides of the boiler).
Cover the oil pipes and oil tank with thermal insulator.
The use of water (for CH) containing a large quantity of lime or salinity causes corrosion
of the product. Always use tap water if possible.
Install the boiler in a boiler room, if any.
Install the boiler in a boiler room if possible to prevent exhaust gas from being
introduced into the living room.
Do not install the boiler in a bathroom or a space without a vent. Lack of
oxygen causes incomplete combustion.
Never install the boiler in an outdoor environment so as to prevent a rupture
due to freezing.
Use the outlet exclusive for the boiler.
Otherwise, fire may break out.
Prevent the stovepipe from contact with combustible materials.
Otherwise, fire may break out.
Finish the contact points with an incombustible insulation material when
installing the flue to prevent fire.
АьїлєёАП·ЇЅЗ АьїлєёАП·ЇЅЗ
WARNING
WARNING

How to Install
12
Make sure thoroughly for keeping pipe warmth of the boiler.
The pipe may be exposed to the risk of a rupture due to freezing.
Keep the floor level by making use of incombustible materials such as
cement blocks prior to installing the boiler.
Install the boiler at a location 50 mm above the floor.
When installing the boiler directly on the floor, the support of the boiler may be
corroded, thereby reducing the lifecycle of the boiler.
Drainage of boiler
If the capacity of the boiler is deficient for the heating area, the safety valve
may open often. Install a nitrogen tank suitable for the capacity. (Overflow)
Connect hoses from the safety valve and the air vent to the sewage pipe on
the floor to drain water.

13
How to Install
Installation of flue
Install the flue 3m above the boiler along with a "T"
unit at the end of the flue in order to prevent
incomplete combustion caused by damaging winds.
Cautions for Installation
Install the flue in such a way that the flue is free from the
wind pressure zone, rain or wind
If there is a tall building or an obstacle within 1 m of the flue,
install the flue 1 meter higher than the roof of the building.
Install the flue at a location 3 meters or higher than the top of
the boiler
The height of the installed flue should be greater than three
times the horizontal length.
If the flue is installed in a wind pressure zone, excessive soot
resulting from incomplete combustion may result, thus reducing
operational efficiency, safety shutdown may be triggered, causing
abnormal operation of the boiler To prevent this, the flue should be
installed in a position outside the wind pressure zone.
Especially, when you use wood or coal fuel, you should avoid the
wind pressure band.
Flue
Drainage device
Install the device with
indination of 5 degrees.
3M
1M
T pipe
Drainage
device
1M or longer
1M or longer
Shorter
than 1m
Drainage
device
1M or longer
3M or longer
Wind pressure
zone
<The distance length
between rafters and
ceiling>
Warning: Installation of additional flue
1. Clearance greater than 30 cm should be
ensured from the flue to prevent contact with
combustible materials, and the flue should be
finished with incombustible materials.
2. Sudden heat may be emitted by the flue when
supplying sthe fuel. Do not store inflammable or
combustible materials in the vicinity of the
stove pipe. Install the flue, taking care to ensure
sufficient clearance from the flue.

How to install
14
Standard Piping Diagram
<Upward Piping System>
<Down Piping System>
Ø150
Ø150
Return water distribution
Return water distribution
CH (Central
Heat) Return
CH (Central
Heat) Return
Water
supply
Water
supply
<Back side of the product>
<Back side of the product>
<Back side of
the product>
<Back side of
the product>
Water supply pipe
Water supply pipe Expansion tank
Heating exit
S
a
f
e
t
y
v
a
l
v
e
S
a
f
e
t
y
v
a
l
v
e
Heating exit
Air vent
Nitrogen tank
(Above 20L)
Circulation pump
Circulation pump
Hot water inlet
Hot water inlet
Hot water outlet
Hot water outlet
A
b
o
v
e
3M
A
b
o
v
e
3M
Pressure gauge
Distributor
Distributor

15
How to install
Requirements when piping
BOILER
1M
EXPANSION
TANK
CIRCULATION
PUMP BOILER
EXPANSION
TANK
CIRCULATION
PUMP
ex. 1 ex. 2
BOILER BOILER
ex. 1 ex. 2
VALVE VALVE
VALVE
VALVE
BOILER BOILER
ex. 1 ex. 2
SUPPLEMENT
WATER
SUPPLEMENT
WATER
①Please install the expansion tank 1m higher than from the top of the boiler
②DO NOT use valve at the fall pipe or expansion tank pipe
③Supply water pipe should be directly connected with expansion tank.

Test Operation and How to
Install the Room Thermometer
16
How to Use the Boiler
Ignite fire on the firewood by clicking the
ignition button in case the function was
for either firewood or firewood/oil.
Set the room temperature by rotating the
room thermostat (CTR-6070) clockwise.
1
Rotate main controller's 'mode' dial
and select one of firewood, firewood/
oil, oil.
2
3
Ho t W a t e r
Te m p.
Op e ra ti on
PO W ER
RO O M
BA T H

17
Test Operation and How to
Install the Room Thermometer
How to Connect the Room Thermometer
1) Install the attachment plate at 1.5M from the
bottom having small thermal change.
2) Connect the cable with the terminal on the
back of the room thermometer (CTR-6080).
※When wiring the room thermometer
connect the signal cables to meet the
polarity and do not connect them with 110V
or 220V power cables.
3) Easy adhesion is possible through pressing
to the wall and pulling down at the same time
after the hanging part matches with
attachment loop.
4) The cable of the room thermostat should be pipe-
arranged independently like telephone wire or
installed with exposure.
※DO NOT bury the cable under the ground or put
in the pipe similar to the electric wire. It may
result in unstable signal transmission and
make a malfunction in the end. Moreover, the
product may be condemned due to a short
circuit by dampness or electric leakage since
the electric wire ages as time goes by
Attaching loop(Up)
Cable outlet
Screw in the
anchoring parts.
Attaching loop(Down)
+
: RED
－
: WHITE
Wall
Checkpoints after Installation
Do the pipe parts not show any signs of
leaking?
Is the boiler installed horizontally and
parallel with the bottom?
Is there any ignitable or combustible
material, such as gasoline, gas cylinders,
and thinner, etc., near the boiler?
Is the flue properly installed?
Is the oil pipe deaerated?
Is the heating pipe deaerated?
Are the hot water pipe and cold water pipe
installed with isolation?
Is the water supply pipe properly connected?
Are the boiler pipes and flues covered with
thermal insulator?
Is the power AC 220V/50Hz?
※If there is any problem with the above-stated matters, contact the distributor in
order to get the required measures.

Boiler specifications
18
Downward Types of Piping
※The outer design and specifications are subject to change for improving the performance of the product. .
■Product drawings
<KRH-35B (Front/Side)>
H
W D
Rated capacity (firewood)
Rated capacity (Oil)
20,000 ~ 35,000
82 ~ 99(25~30평)
2.76
85%
92%
When Burning 30Kg of firewood
Based on kerosene
When Burning 30Kg of firewood
21,000
Oil combustion type
When Burning 30Kg of firewood
Air open type
0.1(1)
32A
103
3.7
15
150
780 x 1,300 x 1,270 mm
270
AC 230V x 50Hz
RemarksHydrid Firewood KRH-35AUnit
Item Model
Fuel consumption (oil)
Heating area
Efficiency (Firewood)
Efficiency (Oil)
Max. service pressure
Heating inlet/outlet
Irrigation capacity
Safety function
Heating area
Hot water inlet/outlet
Flue hole
External dimensions
Weight
Electric power
※Temperature of exhaust gas : ≥300℃
· Overheating shutdown function and
overheating prevention function
· Low level function
·Freeze-rupture prevention function
· Air processing function for initial test
operation
· Constant temperature function for firewood
(Blower and circulation pump control)
kcal/h
kcal/h
Lit/h
m2
%
%
kg/cm2
A
liter
m2
A
A
(WxDxH)
kg
v

19
Troubleshooting
※If any abnormality is found during the operation of the boiler, do not take any measures to
repair them at your own discretion, instead, refer to the below-stated issues. If any
abnormality is generated in the boiler, the figures flash on the display part of the room
thermometer depending upon the state. If an abnormal state carries on, contact the
distributor.
The controller is turned
on but no power is
supplied.
Failure Troubleshooting
Check whether the controller is plugged into the outlet and, after
unplugging the controller, plug other home appliances such as
electric iron, etc. into the outlet. If other home appliances do not
work, the cause may be faulty wiring.
If other home appliances work, contact a local distributor or A/S
center.
Power is supplied but the
boiler does not work.
The boiler works properly
but the room is cold.
The set temperature of the room thermometer may be lower than
the room temperature. In this case, you should set the
temperature of the room thermometer higher than the room
temperature.
If the season setting temperature of the controller in the main
body of the boiler is lower than the water temperature, elevate the
season setting temperature.
In many cases, the driving part of the boiler circulation pump has a
problem.
Check the heating pipes for the existence of air and deaerate the
pipes if required.
The combustion sound
is big.
Air is mixed in the oil.
The flue is not adequately installed or is not thermally insulated.
Correct the installation of the flue or thermally insulate the flue.
If the abnormality continues, contact a local distributor or A/S
center.
Black dirt is suddenly
generated during
operation without any
disorder activating the
safety valve, or white
smoke is generated with
the odor of oil.
Soot may occur right after supplying oil during sudden colder
weather changes, then please identify the right time for supplying
oil and then use the product by checking whether the oil is for the
winter or for the summer.
If the abnormality continues, contact a local distributor or A/S
centre