Kiturami KRP-20PA User manual

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Installation & Operation
Manual
Wood Pellet boiler [KRP-20PA ,KRP-50PA]
●SZU marking of boilers in compliance
with : Standard EN303-5
●Wood Pellet is the main fuel for :
Kiturami ‘Wood Pellet boilers’
Caution
Read the Manual carefully and be sure your pellet boiler properly assembled, installed and
maintained. Failure to follow these instructions exactly could result in a fire or explosion,serious
bodily injury or property damage.
This product must be installed and serviced by licensed plumber, a professional technician.
Using different than ordinary fuel doesn’t guarantee wood pellet boilers right operating - as it
was featured in technical data and it can influence the boilers way of working and its long-
lasting.
Using different type of fuel that the main one is treated as wrong pellet boilers using and its
effects can not be the reason for any complaint to the producer.

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Contents
kituami
Page 1
Pre-Installation Considerations
P2
Product Accessories
Included with the Appliance
P4
Product Characteristics
Specifications
P5
Dimensions
P6
Names of Components
P7
Safety of device
P8
Operation & Installation
Preparing the base
P9
Notes on boiler installation time
P10
Chimney Connections
P11
Plumbing
P13
Notes for Piping
P14
Plumbing schematics
P15
Temperature safety relief valve
P16
Check list after installation
P17
Method of boiler operating
P18
Sub Controller (HOT-4000P)
Sub Controller Description
P19
Main Controller (NPB-150)
Main Controller Description
P22
Room Controller (CTR-5700 PLUS)
Room Controller Description
P28
Caution
General caution
P33
Caution for maintenance
P34
Caution for fuel
P35
Method of boiler cleaning
& Maintenance
Flue tube
P36
Chamber
P37
Induction fan
P38
Error code
P39
Guarantee
P43

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Pre-Installation Considerations
kituami
Page 2
○Pellets
Wood pellets are manufactured by hot-extruding compressed
Sawdust which is produced during the working of natural dried
wood. The compactness of the material comes from the lignin
which is contained in the wood itself, and allows the production of
pellets without the use of glues or binders.
○The market offers different types of pellet with characteristics which
vary depending on what mixture of woods is used. The diameter
varies between 6 mm and 8 mm, with a standard length in the range
5 mm to 30 mm. Good quality pellets have a density which varies
between 600kg/m3 and 750 kg/m3, with a moisture content which
varies from 5% to 8% by weight.
○Besides being an ecological fuel (exploiting timber residues to the
maximum and achieving cleaner combustion than is possible with
fossil fuels), pellets also have technical advantages. While good-
quality timber has a calorific power of 4.4 kW/kg (with 15% mois-
ture,therefore after about 18 months' seasoning), the equivalent
figure for pellets is 4,9 kW/kg.
○To ensure good combustion, the pellets must be stored in an area
That is free of humidity and protected from dirt. The pellets are
Usually supplied in 10 kg. bags, so storing them is very convenient.
Good quality pellets ensure good combustion, thus lowering the
emission of harmful agents into the atmosphere.
The poorer the quality of the fuel, the more frequently will
intervention be necessary for cleaning the internal parts
,such as the grate and the combustion chamber
The main certification of quality for pellets in the European market are
Enplus-A1 these ensure respect of:
_ Calorific power: 4.9 kW/kg
_ Water content: max 10% of weight
_ Percentage of ashes: max 0,5% of weight
_ Diameter: 6mm , Length: max 30mm
_ Contents: 100% untreated wood, with no added bonding
substances (bark percentage 5% max)
_ Packaging: in sacks made from ecologically compatible or
biologically decomposing material

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Pre-Installation Considerations
kituami
Page 3
we recommends using certified fuel in its appliances to ENplus-A1
The use of fuel of inferior quality or not conforming to the specification
given above compromises the running of your appliance and can therefore
lead to the termination of the guarantee and of the manufacturer's
responsibility for the product. Domestic pellet appliances run exclusively on
pellets with a diameter of 6mm
CONSIDERATIONS FOR INSTALLATION
IMPORTANT!
Installation and assembly of the appliance must be carried out by qualified personnel.
The appliance must be installed in a suitable position to allow the normal operations
of opening and ordinary maintenance.
The site must be:
•capable of providing the environmental conditions for operation
•equipped with power supply 230V 50 Hz (EN73-23)
•capable of taking an adequate system for smoke discharge
•provided with external ventilation (if located indoors)
•provided with an earth connection complying with CEI 64-8
The appliance must be connected to a flue pipe or an internal or external vertical duct
conforming to current standards UNI7129 - 7131 9615.
The boiler must be positioned in such a way that the power isolation fuse
is accessible.
The boiler must be connected to a flue pipe or a vertical duct which can
discharge the fumes at the highest point of the building.
The fumes are however derived from the combustion of wood products,
and if they come into contact with or close to walls, they can cause smoke
staining.
Also take care because the fumes are very hot and almost invisible, and
can cause burns on contact.

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Product Accessories –Included with the Appliance
kituami
Page 4
<Room controller>
<Manual>
<Ash cleaning tool>
<Flue outlet connection device>
<KRP-20PA, KRP-50PA>

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Product Characteristics - Specification
kituami
Page 5
ITEMS
UNIT
KRP-20PA
KRP-50PA
Nominal Heating output
kW
26
52
Minimal Heating output
kW
7
12
Boiler Class
-
Class 4
Class 5
Combustion period in hours at Qn
Hr
8
Purpose / Working Condition
-
Heating & DWH / Non-Condensing with fan
And underpressure inside combustion chamber
Air supply type
-
Forced exhaust fan type
Maximum operating pressure
bar
3
Permitted fuel
-
Wood pellet –C1
Fuel consumption with nominal output
kg/hr
5.7
11.5
Chimney draught
mbar
-0.05 ~ + 0.05 [ -5Pa ~ +5Pa ]
Weight
kg
278
370
Size (W×L×H)
mm
1060×920×1250
1200×1030×1420
Pellet hopper capacity
kg
110
141
Flue pipe diameter
mm
≥125
Diameter of inlet Port /outlet Port
inch
1
1 1/2
Volume of water
liter
90
155
Gases temperature
Nonimal output
℃
103
138
Minimal output
℃
69
76
Acoustic pressure level [SPL]
(According EN 15036-1)
dB(A)
53
56
Electrical consumption(ignition)
W
26 (380)
57 (380)
Electrical consumption_Qmin
W
11
16
Voltage / Frequency
V/Hz
230 / 50
Pressure loss of
water
ΔT 10℃
mbar
19
275
ΔT 20℃
mbar
22
282
Weight flow of gases
kg/s
0.038
0.051
Range of temperature setting
℃
60~80
Maximum allowable operating temperature
℃
90
minimum inlet(heating) temperature
℃
50
Accumulation Tank capacity
liter
Min. 1000
Stand by power
Watt
5

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Product Characteristics –Dimensions (mm)
kituami
Page 6
Caution
●Minimum distance of ceiling (related to cleaning) is 1000mm.
●The boiler should be installed on a non-combustible base
No.
KRP-
20PA
KRP-
50PA
No.
KRP-
20PA
KRP-
50PA
A
421
465
J
460
545
B
68
68
K
600
655
C
345
450
L
1007
1254
D
100
100
M
1250
1420
E
100
100
N
800
800
F
188
192
O
920
1030
G
95
95
P
Min.500
H
Min.500
Q
100
100
I
1060
1200
R
811
1009

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Product Characteristics –Components
kituami
Page 7
No
Component
No
Component
1
Main controller
10
Container for water(5L)
2
Sub controller
11
Temperature safety relief valve
3
Hot water inlet
12
Flue outlet
4
Heating inlet
13
Forced exhaust fan
5
Hot water outlet
14
AC motor(flue tube cleaning system)
6
Fuel hopper
15
Pressure relief valve
7
Pellet burner
16
Drain
8
Feeding system
17
Heating outlet
9
DC Actuator(burner cleaning system)
18
Wiring Box

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Product Characteristics –Safety device
kituami
Page 8
○Safety device of power is restored
Once again the power is out, the boiler is a device to work properly you should
restart automatically to the state before the power failure.( 1 hours maintenance)
○Backfire prevention device
Reverse fire prevention device of 2 (rotary valve, drop suit) is ask, it is more secure.
Temperature of pellet fuel line rises to 95℃or more Become a backfire in boiler
running, stop the blower and fuel supply of boilers.
During the blackout backfire, By the paraffin wax plug supply water into the fuel
line.(about 5L)
○Fire ignition cut-off device (Flame monitoring)
If the illumination is not, is a device to automatically shut off the supply of pellets.
Flame of burning during normal disappears, I will shut off automatically the supply
of pellets.
○High temperature cut-off device
Boiler is overheated, it is a device that shuts off the supply of fuel, to stop the
boiler.
○Low water cut-off device
It is a device to inform that there is no water in the boiler, to stop the operation.
○Safety device of the temperature controller
It is a device that stops block the operation of the boiler at the time of occurrence
of an error temperature sensor.
○Freeze prevention device
This equipment operate the burner by circulating water boiler automatically to
prevent freezing in order to prevent freezing of the boiler when going out, me
raising the temperature of the water.
○Electrical short circuit interrupting device
If the overcurrent that exceeds the capacity of the rated fuse failure (short circuit),
or occur has occurred wire inside the boiler, and stop the operation in short the fuse.
○An error occurred during the operation of the normal
Phenomenon of errors that occur during normal operation are usually price start
building after you have removed the error, turn on the power again / re-operation
switch.
○Safety device of exhaust gas closure
It is a device which stops the operation of the boiler

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Operation & Installation –Preparing the base
kituami
Page 9
Careful planning at an early stage will greatly help the installation process and make
sure that all the required clearances are adhered to for servicing and that any
potential issues with the routing of the flue can be resolved.
The KRP-20PA,50PA pellet boiler should be positioned on a non-combustible base.
Refer to service and access clearances around the appliance on page 6.

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Operation & Installation –Notes on boiler installation time
kituami
Page 10
1. Please install it in the boiler room only qualified.
(Boundary wall of the living room and boiler room is that with the exception of the
doorway, and wall of fire-resistant construction in the composition of the gas boiler
room does not enter the living room)
2. The boiler room dedicated, please do not install a ventilation fan that causes the
formation of (a pressure lower than atmospheric pressure) negative pressure.
3. Please do not install exhaust duct of the gas range that can be living and kitchen
inhabited such as ventilation in the boiler room of a dedicated (food), and the like.
4. Ambient that you want to install, and there is need is not a place dealing save the
flammable material and combustible material, please install it by securing sufficient space
required for inspection and repair verification operation, the combustion.
5. Boiler room is installed exhaust port and air supply port always.
The air supply port, must be at or more effective cross-sectional area of the boiler route.
6. To prevent rainwater soak the boiler, please do appropriate leak prevention equipment
such as casing.
7. Please do waterproof treatment to such delay or insulation that has been exposed.
8. Please have the appropriate protective measures, such as water supply pipe outside of
the boiler to prevent freezing.
9. Please to protective measures so as not to interfere with the combustion snow, rain,
wind and the like.
10. So that there is no hindrance to observe with the naked eye did you installed in the
boiler, you must have sufficient lighting equipment.

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Operation & Installation –Chimney Connections
kituami
Page 11
<Flue Pipe Existing Through a Wall>

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Operation & Installation –Chimney Connections
kituami
Page 12
<Flue Pipe Existing Through a Roof>
KRP-20PA, KRP-50PA should be operated under pressure (-5 Pa~+5Pa) at flue
gas outlet. If the appliance is operated over pressure (Positive) than exhaust
fan should be fitted additionly at flue Technician must be install in manuals
and explain in detail to user.
Emission control after first installation is needed.

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Operation & Installation –Plumbing
kituami
Page 13
Remarks
1
Pressure relief valve
4
Isolation valve
2
Check valve
5
Expansion Tank
3
Circulator
6
Mixing valve
Hydraulic System –type.1
Hydraulic System –type.2

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Operation & Installation –Notes for piping
kituami
Page 14
1. During installation, please nut connection and entered into union removable for each connection.
2. Please use the products which conform to standard always piping material.
3. Please do not use the water for rubber hose when connecting pipes.
4. The water supply pipe water is supplied to the boiler, in order to prevent mixing of the metal foreign
matter, please install the strainer (filter) always.
5. Please be sure to remove the foreign matter in the pipe before piping.
6. Please install it exactly as instructed by the vector also optional fan to be standard water supply,
hot water supply, heating and drain outlet.
7. If you exceed the (3 bar) working pressure that is displayed in the water supply total nameplate,
please install a pressure reducing valve always.
8. Piping of all, please take measures so that there is no leakage by performing a leak test must be
after completion of construction.
9. In preparation for freezing, the piping of all, the construction is complete, please be sure and kept
measures. (The hot water supply pipe and water supply, please note in heat retention. For cold
climates, please hot wire heater measures in particular.)
10. Please do not install absolutely valve, the check valve to the safety valve installation or piping
pressure escape tube. (If the valve, check valve is closed, I can boiler to explode by overpressure.)
11. Please install by selecting the capacity to match the boiler of selection of the boiler expansion tank.
12. Please install by connecting together the drain outlet and water inlet.
13. If you want to feed water to the boiler and a rooftop water tank, please install it by using an
auxiliary tank that is separate from the rooftop water tank.
14. You can supply the water pressure of the maximum operating pressure of the boiler, which is on
the rating plate of (3 bar) or more, please do not connect directly to the water pipe.
15. Please install always filter, pressure reducing valves, check valves, safety valves, a closed
expansion tank when it is used by directly connecting a water pipe to the boiler.
16. The water supply pipe, please install a check valve and pressure reducing valve without fail.
17. At the top of the hot water piping open room, air (air) to be discharged smoothly, please install the
air band always.
18. Please Pipe as standard piping diagram

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Operation & Installation –Plumbing schematics
kituami
Page 15
○Mixing Valve body [ Danfoss TVM-W Code no. 003Z1125 ]
○Mixing Valve Specifications
※Mixing valve must be used in the case when boiler is used for heating up DHW.

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Operation & Installation –Temperature safety relief valve
kituami
Page 16
○Temperature safety relief valve : Caleffi, 543Series (code : 543513)

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Operation & Installation –Check list after installation
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Page 17
○Check if the fuel supply device is locked or inserted normally into the hopper.
○Lock securely using the wire band the connection hose between the feeding device
and the fuel slot.
•If the connection hose is not tighten, back fire can happen.
•If the connection hose is dropped, fuel may be clogged preventing
normal operation.
○When connecting the flue, install it using the dust collection T-type within
accessories.
○As the flue pass should be cleaned up regularly, be sure to install the dust
collection.
Wire band

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Operation & Installation –Method of boiler operating
kituami
Page 18
1. Connect the power plug of the boiler.
2. Turn "ON" the earth leakage breaker switch at the left of the control.(Fig. 1.)
3. The main switch located on the side of the HOT-4000P should be switched on.(Fig.2)
4. Check if power is supplied to the auxiliary control and the room control.
5. Fill the hopper with fuel (60Kg or more) and the Container with water about 5L.(Fig. 1)
6. After turning "OFF" the HOT-4000P Power , push for 5 sec. the fuel supply button.
Then, the fuel supply device operates manually to supply fuel approximately during
3 min. (Fig. 3.)
7. If fuel is supplied to the burner, push power button.
8. After turning "ON" the HOT-4000P power button. set the setting temperature of the
room controller higher than current temperature.
9. Check if the boiler operates normally and the circulation pump becomes ON/OFF
repeatedly.
10. If not operated normally, check contents of " Error code & troubleshooting" and
take actions. Then, request A/S center for follow-up measures.
Main switch
Fuel supply
Earth leackage breaker
Container for water(about 5L) .
The fuel supply button

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Sub Controller(HOT-4000P) –Description
kituami
Page 19
○Electrical Characteristics
Title
Symbol
Functional description
POWER BUTTON
*POST PURGE initiates when the power of HOT-4000P is turned off.
SETUP BUTTON
* Use when adjusting the fueling time setting.
Fueling ON/OFF
Power on
Function not operable.
Power off
Switched to the MANUAL MODE when pressed
for 5 seconds.
* Fueling can be manually turned ON/OFF in the MANUAL MODE
* In the MANUAL MODE, it remains ON for only 3 minutes, then the
time(minutes) is displayed.
* Disengages when the power button is pressed ON/OFF.
Power range
230Vrms±15%
Input Hz
50/60Hz±15%
Electric current
0.80A
Maximum limit of humidity
90%＠40℃
Operating temperature r
-10℃~60℃