Kiturami KGW- 8BE User manual

┃┃┃┃┃
Technical information and Installation Servicing Instructions
Model
● KGW - 8NE , 8NF (13.9 kW)
● KGW - 10NE , 10NF (17.4 kW)
● KGW - 13NE , 13NF (22.6 kW)
● KGW - 15NE , 15NF (26.1 kW)
Gas water heater …………..………....
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CONTENTS
1) overall view
Specification ************************************** 3
Accessories ************************************** 3
2) Installation
Standard installation ************************************** 4
Installing Hot water heater ************************************** 5
Connecting Flue ************************************** 6
Piping for upper floor ************************************** 17
Connecting Gas ************************************** 18
Piping Central heating water ************************************** 18
Piping Hot water ************************************** 18
Drain ************************************** 18
Electric works ************************************** 19
3) Functions of the convenient service
Test working ************************************** 20
First ignition operation ************************************** 21
Water circuit Diagram ************************************** 22
Checking the CO2 ************************************** 22
Adjustment and gas conversion ************************************** 23
4) Direction for assembly
Disassembly ************************************** 25
Part list ************************************** 26
5) Maintenance guide
Main heat exchanger ************************************** 27
Burner unit ************************************** 28
Fan unit ************************************** 29
Temperature sensor ************************************** 30
Over heating sensor ************************************** 30
Gas valve ************************************** 30
Circulation pump ************************************** 31
3Way valve ************************************** 31
Others ************************************** 31
6) Function of the controller
Main controller ************************************** 32
Function ************************************** 33
7) Function of the controller
Room controller panel ************************************** 36
LED Panel ************************************** 37
8) Troubleshooting guide (error code)
Finding failures
**************************************
38
9) Technical Data Table ************************************** 39
10) Memo ************************************** 40
11) Warranty ************************************** 41
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1. overall view
These instructions are suitable for KGW Series hot water heater;
Do not forget this instruction.
To ensure the correct installation, commissioning and servicing of domestic hot water heating system.
To the householder,
Make sure you have a completed this book for your water heater. This book provides a record of the commissioning of your
hot water.
It contains very important information about your particular installation that may be required by service engineer.
This book will also provides contact details for the installer should you need guidance in the use of this unit or if there are
any problems. As with your car, your boiler will work more reliably and efficiently if it regularly is serviced. We recommend
an annual service check. The service history of the unit will be recorded on this book.
In the unlikely event of any problems with your boiler or system you should first contact your installer. If your installer cannot
resolve the problem he should calling to our service center.
A charge
may be
You statutory rights are not affected.
To The Installer
As part of the commissioning of this unit it is vital that this book is completed and given to the householder.
Please ensure that your customer is aware of the importance of keeping this book safe as a record of the installation and the
unit service history
Please ensure that your customer is aware of the correct operation of the system, water heater and controls. KITURAMI recommend
the use of protective clothing, when installing and working on the unit i.e. gloves.
GUARANTEE
The manufacturer’s guarantee is for 2 years(?) from the date of installed. The guarantee is invalidated if the unit is not installed
in accordance with the recommendations made herein or in a manner not approved by the manufacturer. To assist us in
providing you with an efficient after sales service, please return the guarantee registration card enclosed with the boiler without
delay.
1-1 General Information
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1. Product description
Model : KGW-8~15BE, BF
DIMENSION (Wx Dx H)
WEIGHT (kg)
FUEL TYPE
362 x 200 x 560
INSTALLATION TYPE
18
FF , FE
Δt 25℃ 10 ℓ
5 ℓ
8.1 ℓ
1-2 Speafication
13 ℓ
6.3 ℓ
MODEL
POWER SOURCE
Fixing bolt BendRoom controller
9.4 ℓ
220 - 240 V, 50Hz
KGW - 15PE , PFKGW - PE , PF KGW - 10PE , PF KGW - 13PE , PF
LNG, 13A, G20, G30
8 ℓ 15 ℓ
Specific Domestic
Δt 25℃
Flue
Exhaust
Ignition bar
Gas valve
AL heat exchanger
Burner
Photo sensor
CU heat exchanger
ignition transformer
Fan
Controller
DHW innet sensor
Over heating
sensor
DHW Flow
Sensor
Mixing valve
Power transformer
Nozzle
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2. Installation
2-1 Standard installation
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ㅣ Installing Boiler ㅣ
1. The hot water heater has to be fixed horizontally to the wall with some space for cleaning and maintenance.
2. The wall should support enough to hang 25 ~ 35kg of hot water heater and be incombustible surface
3. Before installing the water heater, check the pipes and valves for domestic hot water in & out-let, and gas.
ㅣSelecting Location ㅣ
1. Please select the location and position, considering some space for cleaning and maintenance.
2. The wall should support enough to hang the water heater of 35 ~45kg. If need, reinforce the wall before installing.
3. Corrosive gas [ex. Ammonia gas, Chloric gas, Sulfur, Acids, etc] can destroy or rust the water heater, flues, and pipes by a
chemical reaction. And it may reduce the efficiency of heater or igniter. Please avoid this location or clean up the place
before installing water heater.
4. he water heater should be installed onto the incombustible surface.
5. Please avoid the wet place and hermetically sealed location.
The water heater can be installed on any suitable internal wall (suitable sound proofing may be required when installing onto a stud partition wall).
Provision must be made to allow for the correct routing of the flue and setting of the terminal to allow the safe and efficient removal of the flue
products.
Where a room sealed appliance is installed in a room containing a bath or shower, the appliance and any electrical switch or appliance control,
utilizing mains electricity should be situated specifically in accordance with current IEE Wiring Regulation.
[Installing water heater]
1. The water heater has to be installed horizontally to the wall with some space for cleaning and maintenance.
2. The water heater has to be fixed firmly with special bolt for its weight and tightly against any vibration.
It is recommended to stick the rubber against vibration.
2-2 Water heater Installation
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2-3-2 Installing flue (Connecting)
COXAIL FLUE Connecting
ASSEMBLING the socket of inlet and outlet flue.
1. Join the flue socket on flue outlet.
2. After sealing the top of boiler and socket with gasket,
fix the socket to the boiler body with screw.
JOINING FLUE WITH BOILER
1. Fix the socket, boiler adapter and flue elbow with sealing
tape after adjusting all.
2. After sealing well, join and screw the flue duct adapter.
3. Join and fix the flue elbow to main flue with careful check
of exhaust flue and inlet flue.
4. Seal the joint completely with tape and screw the Flue
duct adapter.
5. Slope down the flue outlet by 3 ~ 5˚ in order to drop the
condensation down.
2-3 Installing flue (Dimensions and Fixings)
Flue Air Duct
Flue Duct Adapter
Gasket
Flue Elbow
Flue Duct Adapter
Boiler Adapter
Gasket
Socket
Exhaust Flue
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2-3-1 FLUE
COXAIL FLUE
Forcible air inlet, outlet type (FF)
Forcible air outlet type (FE)
Section Model 13.9 kW - 26.2 kW
Φ75 x Φ100
Φ75
1234567
name air suction pipe exhaust pipe exhaust bend exhaust elbow
air suction soket
exhaust soket air suction bend
material SUS AL AL AL SUS SUS AL
remarks
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2-3-1 FLUE
The provision for satisfactory flue termination must be installed in accordance with local regulations.
The appliance must be installed so that the flue terminal is exposed to outdoor air.
The terminal must not discharge into another room or space such as an outhouse or lean-to. It is important that the
position of the terminal allows a free passage of air across it at all times. The terminal should be located with due
regard for the damage or discoloration that might occur on buildings in the vicinity,
it must also be located in a place not likely to cause nuisance. In cold or humidity weather water vapor may condense
on leaving the flue terminal The effect of such “steaming” must be considered. If the terminal is less than 1 meter
above a balcony, above ground or above a flat roof to which people has access, then a suitable stainless steel terminal
guard must be fitted. The minimum acceptable spacing from the terminal to obstructions and ventilation openings
are specified in Fig. X.
Warning
The exhaust gas duct must not be contact with or close to inflammable material and must not pass through building
structures or walls made of inflammable material. When replacing an old appliance, the flue system must be changed.
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2-3-7 Installing flue (Fitting The Flue (Cont) )
A Directly below an opening, air brick, opening widow, etc.
B Above an opening, air brick, opening window etc
C Horizontally to an opening, air brick, opening window etc
D Below gutters, soil pipes or drain pipes
E Below eaves
F Below balconies or car port roof
G From a vertical drain pipe or soil pipe
H From an internal or external corner
I Above ground, roof or balcony level
J From a surface or boundary line facing a terminal
K From a terminal facing a terminal (Horizontal flue).
From a terminal facing a terminal (Vertical flue).
L From an opening in carport (e.g. door, window) into the dwelling
M Vertically from a terminal on the same wall
N Horizontally from a terminal on the same wall
R From adjacent wall to flue (vertical only).
S From an adjacent opening window (vertical only).
T Adjacent to windows or openings on pitched and flat roofs
U Below windows or openings on pitched roofs
300mm
300mm
1200mm
1200mm
25mm
25mm
25mm
600mm
300mm
2000mm
600mm
300mm
25mm
25mm
300mm
300mm
1000mm
1500mm
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2-3-8 Installing flue (Flue Options - Horizontal Flue Systems)
Twin & Vertical Flue Systems
1. Maximum permissible equivalent flue lengths are:-
2. Any additional " in lin" bends in the flue system must be taken into consideration
Their equivalent lengths are:-
Concentric Pipes: Twin Flue Pipe
130 bend 0.5 metres 135 bend 0.25 metres
93 bend 1.0 metres 91.5 bend 0.50 metres
The elbow supplied with the standard horizintal telescopic flue kit is not included any equivalent length
calculations
Vertical Concentric
15 metres
Vertical Twin Pipe
20 metres10 metres
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2-3-9 Flue options
The total equivalent length for this
example is = 6.5 meters
AIR DUCT
sub total
Equivalent
Length Value
N of
fittings/pipes
1 m
5
5.0 m
0.25 m
Equivalent
N of
sub total
0.25 m
2
0.5 m
Equivalent Length Air Duct = 6.5 m
FLUE DUCT
0.5 m
1.0 m
2
2
fittings/pipes
1 m
5
5.0 m
Length Value
0.5 m
2
1.0 m
Equivalent Length Air Duct = 6.5 m
0.5 m
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2-4-1 Standard pipework
※ Caution on piping
This boiler is equipped with the pressure controller of water-inlet to protect
the body and each valves from the instantaneous high-water-pressure
when or closing the water valves.
This pressure controller of water-inlet works under 2.5kgf/㎠ of inlet water
pipe pressure. Therefore, if over it, should install the pressure reducing
valve for inlet water pipe additionally.
If over pressure of inlet water, it may cause bursting pipes of house or
boiler inside and stopping hot water from boiler.
2-4 pipework
water heater Cool water INLET
reducing valve
(Sold separately)
Conneat direc
tly to water
pipe
Gas filter
DHW INLET Pipe
DHW OUTLET Pipe
Bathtub
DHW INLET Valve
Pressure redncing valve
Gas inlet pipe
DHW OUTLET Pipe
Bathtub
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2-4-2 Gas / Water connection
1. Gas connection
1). Make sure, using the labels on the packaging and the data plate on the appliance itself, that the boiler is in the correct
country and that the gas category for which the boiler was designed corresponds to one of the categories available in the
country where it will be used.
2). The gas supply piping must be created and measured out in compliance with specific legal requirements and in accordance
with the maximum power of the boiler; you should also make sure that the shut-off valve is the right size and that it is
connected correctly.
3). Check that the supplied gas corresponds to the type of gas for which the boiler was designed
(see the data plate located on the appliance itself).
It is also important to check that the pressure of the gas (methane or LPG) you will be using to feed the boiler is suitable,
because if it is insufficient the power may be reduced, causing inconvenience for the user.
2. Water connection
1). The illustration shows the connections for the water and gas attachments of the boiler. See valves configuration
2). Check that the maximum water mains pressure does not exceed 3bar; if it does, a pressure reducing valve must be
installed.
3). For measuring of the pipes and of the heating bodies in the heating system, the residual head value should be calculated
as a function of the requested flow rate, in accordance with the valves shown in the circulation pump graph
3. Drain connection
1). Extend the hose from the safety valve and connect the drain hole.
※ Caution ; Do not store any wettable things under the boiler or near the drain hole.
DDomestic Hot Water Inlet
C Domestic Hot Water inlet
B Domestic Hot Water Outlet
Name
others
mark
A Gas Inlet
D
C
B
A
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2-5-1 Connecting Wires
※ This appliance is designed on
AC 220V ~ 230V/ 50Hz
.
This work of connecting wires is required by a qualified electrician.
1. Make sure that the earth connection is required for safety uses from any electric leakage or short-circuit.
2. Make sure that the connecting electricity - for example, connecting power and cable, wiring, earthing, etc - should
comply with the regulation.
3. If this appliance is not earthed by power plug, ensure to earth separately, by minimum 30cm inserted in the
ground. Note not to connect gas pipe, telephone wire and lightning conductor(rod) in order to avoid any
accident from lightning, surge, or the gas accident.
4. Make sure that the socket outlet is apart by over 30 cm from the appliance.
5. The power outlet has to have at least the minimum clearance of 30Cm from the gas water heater
6. The grounding point need to be buried at least 30cm
2-5 Connecting Electricity
More than 30Cm
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3. TEST WORKING
1). Before switching-on, please check the followings after finishing the installation of boiler, flue, pipes, and electricity.
① □ Is the boiler installed horizontally on the wall?
② □ Does the installer work on the installation manual?
③ □ Are not there any inflammable material near the boiler, for example, gasoline, gas can and bottle, thinner, etc ?
④ □ Is the on-off valve installed between gas pipe and boiler?
⑤ □ Does check the gas leakage of each connecting points?
⑥ □ Does insulate each pipes properly to protect in winter season?
⑦ □ Does check the leakage of the exhaust gag from the flue ?
⑧ □ Does check the voltage and hertz - AC 220 ~ 230V 50Hz, before of plugging-on ?
⑨ □ Does locate the middle on-off valve for water inlet pipe?
⑩ □ Does check the classification of the supplied gas to the instruction of gas on the specification label in boiler?
3-1 Check list before switching-on
12
3
4
5
7
8
910
0
6
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Date : …….………………………………
Installer : ……………………………………
3-2 FIRST IGNITION OPERATION
15. Check the ionisation
current
Compleat……………………
…….
12. Check the working in
DHW mode
Compleat……………………
…….
9. Set the heating power.
See section
Compleat……………………
…….
6. Fill the installation. See
section
Compleat……………………
…….
3. Check the gas tightness
Compleat……………………
…….
2. Check the type of gas and
change the gas if necessary
Compleat……………………
…….
5. Check the exhaust
fume. See section……
Compleat……………………
…….
8. Spin the pump.
Compleat……………………
…….
11. Balance the central
heating circuit
Compleat ……………….……
…
14. Make a combustion rate
with once pressing on
RESET button during 5 sec
Compleat ……………….……
…
1. Check the electrical
supply.
Compleat……………………
4. Measure the gas inlet
Compleat……………………
…….
7. Check the hydraulic
tightness
Compleat……………………
…….
10. Adapt the requlation at
the heating instation
Compleat……………………
…….
13. Adjust DHW flow rate on
the boiler(if necessary)
Compleat……………………
…….
16. Explain to the end uaer
the working of the boiler
Compleat……………………
…….
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3-4 Checking the CO2
① The combustion may be checked after running the boiler for several minutes.
To do this it is necessary to set the boiler to Calibration Mode.
② Ensure that all external controls are calling for heating with maximum output.
③ The appliance should be check visually for obvious defects.
④ There are two test points in the flue, one for flue gas and the other for air.
⑤ Open the air and flue gas test points.
⑥ Insert the flue gas analyzer probe as far as the retainer.
⑦ Allow the boiler to reach thermal equilibrium (around 5~10min)
⑧ The CO and CO2 values should be check each below 200ppm and 5%.
3-3 Water Circuit Diagram
Air inlet test
point
Flue gas test
point
Exhaust flue
Flue gas
1
87 9
10
3
6
2
4
5
13
11
12 14
15
1. Heat Exchanger
2. High Limit Switch
3. Burner
4. Flame Detector (Photo Sensor)
5. Fan
6. Igniter
7. Water Inlet Temperature Probe
8. Water Outlet temperature Probe
9. Gas Valve
10. Water Flow Sensor
11. Water Supply Reducing Valve
12. Cold Water Inlet Connection
13. Hot Water Outlet Connection
14. Gas Inlet Connection
15. Safety Relief Valve
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1) Adjusting the pressure and gas flow rate to the main burner
This boiler operates on the flame modulation principle. It has two fixed pressure values which are minimum and
maximum and must be shown in the following table, whichever type of gas is used.
Note – Because correct minimum and maximum pressure are critical to the efficient operation of the water heater it is
essential that the following adjustments are carried out by qualified personnel only.
2) Adjusting minimum and maximum pressure gas valve (TIME, UP33-06)
① Undo the screw “A”.
② Connect suitable pressure gauge (Analogue – Water columns, Digital – Digital manometer) to burner test point
with silicone tube “B” downstream of the gas valve.
③ Domestic hot water
④ After setting DIP S/W Nr 8 to the “ON” position, adjust potentiometer “C” on the main board at the minimum.
⑤ Adjust minimum pressure by rotating screw “D” clockwise to reduce pressure and anticlockwise to increase pressure.
⑥ After adjusting the minimum pressure, turn OFF position the DIP S/W Nr 8.
⑦ And then, After setting DIP S/W Nr 9 to the “ON” position, adjust potentiometer “D” on the main board at the maximum.
⑧ Adjust maximum pressure by rotating screw “E” clockwise to reduce pressure and anticlockwise to increase pressure.
3-5 Adjustment and gas Conversion
Water column
silicone tube
Screw for soundness
Burner 2nd pressure
test point
Water column
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2) Gas conversion
The following adjustment and conversion operations must be carried out by qualified personnel. KITURAMI
Limited accepts no liability for damage to property or personal injury resulting from tampering with the water heater by
unauthorized persons.
To convert the water heater from Natural Gas to LPG and vice versa, the main burner injectors must be replaced.
Minimum and maximum pressure must then be adjusted on the gas valve.
Table1, Gas valve 2nd pressure each Model
Unit mmAq
MAX MIN MAX MIN MAX MIN MAX MIN
83 24 79 18 92 19 105 16
57 18 57 16 53 12 64 12
Table2, Nozzle diameter each model and gas Unit mm
UNIT 15
GAS
UNIT 10
UNIT 8 UNIT 10 UNIT 13
Ø1.1 x 17EA
UNIT 8 UNIT 13 UNIT 15
Model
3-6 Adjustment and gas Conversion
LPG
LNG
LPG
Model
Ø1.1 x 13EAØ1.1 x 10EA Ø1.1 x 15EA
Ø1.68 x 15EA Ø1.68 x 17EALNG Ø1.55 x 13EAØ1.55 x 10EA
Potential meter
maximum control
Potential meter
minimum control
DIP Switch
Water column
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