Radiant R1K 18 Service manual

R1K 18 - RAD - ING - Manuale - 1706.1_V3
Installation, Use
and Maintenance Manual
for model
0476
R1K 18
Premix condensing system boiler
only heating

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R1K 18 - RAD - ING - Manuale - 1706.1_V3
2 Dati tecnici_R1K 18_ErP_EN15502_EN
2. MAINTENANCE
SUPPORT CENTRE
2.2.8. TECHNICAL DATA
Model R1K 18
CE certification no. 0476CQ0134
Gas category 0 II2H3B/P
Discharge type type B23p-B33-C13-C33-C4 3-
C53-C63-C83-C93
Energy efficiency 92/42 CEE no. stars 4
Energy efficiency EN13203-1 no. stars 3
Maximum nominal heat capacity in heating circuit kW 18
Minimum nominal heat capacity in heating circuit kW 2.9
Useful thermal power - 60/80°C kW 17.4
Minimum useful thermal power - 60/80°C kW -
Useful thermal power - 30/50°C kW 18.99
Performance at 100% Pn - 60/80°C % 96.4
Performance at 30% Pn - return 47°C % -
Performance at 30% Pn - return 30°C % 107.5
Performance at 100% Pn - 30/50°C % 105.5
Maximum combustion Performance % 97.4
Fumes temperature at nominal heat capacity °C 73.65
Fumes temperature at minimum heat capacity °C 65.7
CO2 at nominal heat capacity - G20 % 9,3 - 9,1
CO2 at minimum heat capacity - G20 % 9 - 8,8
CO2 at nominal heat capacity - G30 % 11,4 - 11,2
CO2 at minimum heat capacity - G30 % 10,9 - 10,7
CO2 at nominal heat capacity - G31 % 10,5 - 10,3
CO2 at minimum heat capacity - G31 % 10,2 - 10
CO at nominal heat capacity ppm 67
Fumes mass at nominal heat capacity g/s 7.44
Fumes mass at minimum heat capacity g/s 1.26
NOx class class 6
Weighted Nox (0% O2) mg/kWh mg/kWh 35
Heating circuit
Adjustable heating temperature °C 30-80 / 25-45
Maximum operating temperature for heating circuit °C 80
Maximum operating pressure for heating circuit bar 3
Minimum operating pressure for heating circuit bar 0.3
Capacity of the system expansion vessel litres 8
Dimensional characteristics
Width mm 410
Depth mm 307
Height mm 642
Gross weight Kg 35
Water connections
Flow Ø 3/4”
Cold water Ø 1/2”
Gas Ø 3/4”

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R1K 18 - RAD - ING - Manuale - 1706.1_V3
2 Dati tecnici_R1K 18_ErP_EN15502_EN
2. MAINTENANCE
SUPPORT CENTRE
Return Ø 3/4”
Fume exhaust fittings
Maximum electric fan pressure available Pa 100
Minimum electric fan pressure available Pa 21
Max discharge length Ø60/100 - Hor Co-ax m 10
Max discharge length Ø80/125 - Hor Co-ax m 12
Max discharge length Ø50/50 - Hor Split m 10
Max discharge length Ø60/60 - Hor Split m 32
Max discharge length Ø80/80 - Hor Split m 60
Max discharge length Ø50 - Hor duct m 8
Max discharge length Ø60 - Hor duct m 30
Max discharge length Ø80 - Hor duct m 35
Max discharge length Ø60/100 - Vert Co-ax m 10
Max discharge length Ø80/125 - Vert Co-ax m 12
Max discharge length Ø50/50 - Vert Split m 10
Max discharge length Ø60/60 - Vert Split m 32
Max discharge length Ø80/80 - Vert Split m 60
Max discharge length Ø50 - Vert duct m 8
Max discharge length Ø60 - Vert duct m 30
Max discharge length Ø80 - Vert duct m 35
Electrical specifications
Voltage-frequency V/Hz 230/50
Max Absorbed Power W 78
Insulation rate IP X5D
Gas supply
Nominal supply pressure - G20 mbar 20
Heating Max. fan speed - G20 Hz 156
Heating Min. fan speed - G20 Hz 45
Fuel consumption - G20 m3/h 1.90
Nominal Supply pressure - G30 mbar 30
Heating Max. fan speed - G30 Hz 141
Heating Min. fan speed - G30 Hz 45
Fuel consumption - G30 kg/h 1.42
Nominal Supply pressure - G31 mbar 37
Heating Max. fan speed - G31 Hz 150
Heating Min. fan speed - G31 Hz 45
Fuel consumption - G31 kg/h 1.40

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R1K 18 - RAD - ING - Manuale - 1706.1_V3
2 Dati tecnici_R1K 18_ErP_EN15502_EN
2. MAINTENANCE
SUPPORT CENTRE
Technical parameters for boiler space heaters, boiler combination heaters and cogeneration
space heaters
Model R1K 18
Condensing boiler
Low-temperature (**) boiler:
B11 boiler
Cogeneration space heater
If yes, equipped with a supplementary heater
Combination heater
Rated heat output Prated
[yes/no] yes
[yes/no] no
[yes/no] no
[yes/no] no
[yes/no] no
[yes/no] no
kW 17.40
For boiler space heaters and boiler combination
heaters: Useful heat output
At rated heat output and high-temperature regime (*) P4kW 17.40
At 30 % of rated heat output and lo w- tempe rature re gi me (* *)
P1
kW 5.40
For cogeneration space heaters: Useful heat output
At rated heat output of cogeneration space heater with
supplementary heater disabled PCHP100+Sup0
kW -
At rated heat output of cogeneration space heater with
supplementary heater enabled PCHP100+Sup100
kW -
)RUFRJHQHUDWLRQVSDFHKHDWHUV(OHFWULFDOHI¿FLHQF\
At rated heat output of cogeneration space heater with
VXSSOHPHQWDU\KHDWHUGLVDEOHGȘel,CHP100+Sup0
%-
At rated heat output of cogeneration space heater with
VXSSOHPHQWDU\KHDWHUHQDEOHGȘel,CHP100+Sup100
%-
$X[LOLDU\HOHFWULFLW\FRQVXPSWLRQ
At full load elmax kW 0.04
At part load elmin kW 0.02
In standby mode PSB kW 0.004
6HDVRQDOVSDFHKHDWLQJHQHUJ\HI¿FLHQF\Șs%91
6HDVRQDOVSDFHKHDWLQJHQHUJ\HI¿FLHQF\FODVV A
For boiler space heaters and boiler combination heaters:
8VHIXOHI¿FLHQF\
$WUDWHGKHDWRXWSXWDQGKLJKWHPSHUDWXUHUHJLPHȘ4%86.9
At 30 % of rated heat output and low-temperature regime
Ș1
%96.8
)RUFRJHQHUDWLRQVSDFHKHDWHUV8VHIXOHI¿FLHQF\
At rated heat output of cogeneration space heater with
VXSSOHPHQWDU\KHDWHUGLVDEOHGȘCHP100+Sup0
%-
At rated heat output of cogeneration space heater with
VXSSOHPHQWDU\KHDWHUHQDEOHGȘCHP100+Sup100
%-
6XSSOHPHQWDU\KHDWHU
Rated heat output Psup kW -
Type of energy input -
Other items
Standby heat loss Pstby kW 0.1
Ignition burner power consumption Pign kW 0.0

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R1K 18 - RAD - ING - Manuale - 1706.1_V3
2 Dati tecnici_R1K 18_ErP_EN15502_EN
2. MAINTENANCE
SUPPORT CENTRE
Annual energy consumption QHE kWh / GJ 15833 / 57
Sound power level, indoors LWA dB 52
For combination heaters:
'+:HQHUJ\HI¿FLHQF\FODVV -
'HFODUHGORDGSUR¿OH -
Daily electricity consumption Qelec kWh -
Annual electricity consumption AEC kWh -
:DWHUKHDWLQJHQHUJ\HI¿FLHQF\Șwh %-
Daily fuel consumption Qfuel kWh -
Annual fuel consumption AFC GJ -
Contact details Tel. [phone] - fax. +39 0721
9079299 - e-mail: [email protected] - http://
www.radiant.it
Name and address of the supplier RADIANT BRUCIATORI S.p.A.
Via Pantanelli, 164/166 - 61025 -
Montelabbate (PU)
(*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature
at heater outlet.
(**) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for
other heaters 50 °C return temperature (at heater inlet).

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R1K 18 - RAD - ING - Manuale - 1706.1_V3
2 Complessivo tecnico_R1K 18_V3_EN
2. MAINTENANCE
SUPPORT CENTRE
2.2.9. TECHNICAL ASSEMBLY
KEY
1. FUMES SAFETY THERMOFUSE
2. HEAT EXCHANGER
3. BURNER UNIT
4. DETECTION ELECTRODE
5. ELECTRIC FAN
6. AIR RELIEF VALVE
7. SAFETY VALVE 3 bar
8. MODULATING PUMP
9. GAS VALVE
10. SYSTEM DRAINING TAP
11. SA FE T Y THERMOS TAT
12. HEATING PROBE
13. LIGHT UP ELECTRODE
14. EXPANSION TANK
15. START-UP TRANSFORMER
16. AIR SUCTION TUBE
17. PROPORTIONAL VENTURI
18. WATER PRESSURE SWITCH
19. CONDENSATE COLLECTION SIPHON
20. SYSTEM FILLING TAP
1
2
3
4
5
6
7
8
9
10
6
11
12
13
14
16
15
17
19
18
20

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R1K 18 - RAD - ING - Manuale - 1706.1_V3
2 Schema idraulico_R1K_EN
2. MAINTENANCE
SUPPORT CENTRE
2.2.10. HYDRAULIC BOARD
KEY
R. HEATING RETURN
G. GAS INLET
SC. CONDENSATE DRAIN
F. COLD WATER INLET
A. HEATING FORWARD
1. FUMES SAFETY THERMOFUSE
2. HEAT EXCHANGER
3. BURNER UNIT
4. ELECTRIC FAN
5. GAS VALVE
6. AIR RELIEF VALVE
7. CIRCUL ATOR
8. SAFETY VALVE 3 bar
9. SYSTEM DRAINING TAP
10. HEATING PROBE
11. SA FE T Y THERMOS TAT
12. EXPANSION TANK
13. AIR SUCTION TUBE
14. PROPORTIONAL VENTURI
15. WATER PRESSURE SWITCH
16. CONDENSATE COLLECTION SIPHON
17. BY-PASS
18. SYSTEM FILLING TAP
RFA
G
1
2
3
4
6
7
8
9
6
10
11
12
13
14
15
17
18
sc
516

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R1K 18 - RAD - ING - Manuale - 1706.1_V3
3Pannellocomandi_solorisc_MIAH4_R2_G_EN
3. USE
USER
3.1.2. CONTROL PANEL
KEY
1. HEATING TEMPERATURE ADJUSTMENT
KEYS.
2. INFO KEY: PRESS ONCE TO VIEW THE
TEMPERATURES AND OTHER INFORMATION
(see chapter ‘INFO MENU DISPLAY) - HOLD
FOR 5 SECONDS, IN OFF OPERATING MODE,
TO VIEW THE LAST 5 FAULTS.
3. OPERATING MODE SELECTION KEY: ONLY
HEATING / OFF.
4. RESET KEY: FAULTS RESET - CHIMNEY
SWEEP FUNCTION ACTIVATION (HOLD FOR 7
SECONDS).
5. VALUE OF THE PARAMETERS ADJUSTMENT
KEY / HOLD THE KEYS AT THE SAME TIME
FOR 5 SECONDS TO ACTIVATE DISPLAY BACK
LIGHT FOR 10 MINUTES.
6. DISPLAY
5
1
6
2 3 4

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R1K 18 - RAD - ING - Manuale - 1706.1_V3
3 Icone del display_solo risc_MIAH4_EN
3. USE
USER
3.1.3. DISPLAY ICONS
KEY
1. INDICATION OF PARAMETER NUMBER OR
DISPLAYED INFO CODE
2. PARAMETERS PROGRAMMING FUNCTION
ACTIVE
3. SIGNALLING CONNECTED SOLAR BOARD /
SOLAR COLLECTOR TEMPERATURE DISPLAY
(d5)
4. SOLAR PUMP ACTIVE
5. BOILER LOWER TEMPERATURE DISPLAY (d6)
/ BOILER UPPER TEMPERATURE DISPLAY
(d7)
6. EXTERNAL PROBE INSTALLED / EXTERNAL
PROBE TEMPERATURE (d1)
7. TEMPERATURE DISPLAY / SET POINT /
PARAMETER VALUE
8. OPEN THERM COMMUNICATION PRESENT
(REMOTE CONTROL / AREA CONTROL UNIT)
9. INSUFFICIENT SYSTEM WATER PRESSURE
SIGNALLING
10. FLAME PRESENT SIGNALLING / IT ALSO
INDICATES, ON 3 PERCENTAGE LEVELS, THE
MODULATING POWER LEVEL OF THE BOILER
(fig.2)
11. ERROR DISPLAY THAT CAN BE RESET
12. OFF OPERATING MODE
13. ERROR DISPLAY THAT CAN NOT BE RESET
14. OPERATION IN HEATING MODE ENABLED
456 7
9
10
111213
14
1
2
38
≤ 33% >33%<66% >66%<100%
fig. 1
fig. 2

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R1K 18 - RAD - ING - Manuale - 1706.1_V3
3 Visualizzazioni del menù Info_MIAH4_EN
3. USE
USER
3.1.4. INFO MENU DISPLAY DATA
To view the boiler data from info menu you just have to press the INFO ‘ ’ key. The info code will be
displayed on the left side of the screen and its relative value will be displayed on the centre of the screen.
Use keys ‘ ’ and ‘ ’ of the heating circuit to scroll through the list of displayed data. To exit display
mode press the INFO ‘ ’ key.
LIST OF DISPLAYED DATA
INFO CODE ICON DESCRIPTION
d0 DOMESTIC CIRCUIT PROBE TEMPERATURE
d1 EXTERNAL PROBE TEMPERATURE
d2 FAN SPEED
d3 BOTTOM AREA PROBE TEMPERATURE [IF AREA BOARD INSTALLED]
d4 RETURN PROBE TEMPERATURE
d5 SOLAR COLLECTOR TEMPERATURE [IF SOLAR BOARD INSTALLED] (SCS)
d6 SOLAR BOILER TEMPERATURE (BOTTOM) [IF SOLAR BOARD INSTALLED] (SBSI)
d7 SOLAR BOILER TEMPERATURE (TOP) [IF SOLAR BOARD INSTALLED] (SBSS)
d8 SOLAR COLLECTOR PROBE TEMPERATURE 2 [IF SOLAR BOARD INSTALLED] (SCS2)
d9 EXTRA SOLAR BOILER TEMPERATURE [IF SOLAR BOARD INSTALLED] (SBS3)

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R1K 18 - RAD - ING - Manuale - 1706.1_V3
3Riempimentodell'impianto_MIAH4_R2K_EN
3. USE
USER
3.1.8. SYSTEM FILLING
To restore the water pressure inside the system
open the loading tap “R” (fig. 1) and make sure
using pressure gauge “M” (fig. 1), that the system
pressure reaches 1.2 bar (see fig. 2).
After performing this operation, make sure that
the loading tap “R” (fig. 1) is properly closed.
After the water pressure reset the boiler will
automatically perform a 2 minutes system relief
cycle. Throughout this function the display will
show the code “F33”. The boiler can work normally
only after completing the operation.
M
R
fig. 1
fig. 2

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R1K 18 - RAD - ING - Manuale - 1706.1_V3
3Codicidisegnalazioneanomalie_solorisc_MIAH4_EN
3. USE
USER
3.1.9. FAULT SIGNALLING CODES
The boiler might signal some faults by displaying a code. Below you have a list of the codes and of the
operations to be performed in order to unlock the boiler.
CODE ICON FAULT INTERVENTION
E01 FLAME BLOCK MAKE SURE THAT THE BOILER AND CONTACTOR GAS VALVES
ARE OPEN.
PRESS THE RESET ‘ ’ BUTTON ON THE CONTROL PANEL TO
RESET THE FAULT, AS SOON AS THE ERROR CODE DISAPPEARS
FROM THE DISPLAY, THE BOILER WILL START AUTOMATICALLY.
IF THE BLOCK PERSISTS CONTACT THE TECHNICAL SUPPORT
CENTRE.
E02 SAFETY THERMOSTAT (95 °C) PRESS THE RESET ‘ ’ BUTTON ON THE CONTROL PANEL TO
RESET THE FAULT, AS SOON AS THE ERROR CODE DISAPPEARS
FROM THE DISPLAY, THE BOILER WILL START AUTOMATICALLY.
IF THE BLOCK PERSISTS CONTACT THE TECHNICAL SUPPORT
CENTRE.
E03 FUMES SAFETY THERMOFUSE (102 °C) CONTACT THE TECHNICAL SUPPORT CENTRE.
E04 WATER MISSING IN THE SYSTEM IF THE SYSTEM PRESSURE IS BELOW 1.2 BAR, FILL THE SYSTEM
AS DESCRIBED IN CHAPTER “SYSTEM FILLING”.
IF THE BLOCK PERSISTS CONTACT THE TECHNICAL SUPPORT
CENTRE.
E05 HEATING PROBE CONTACT THE TECHNICAL SUPPORT CENTRE.
E15 RETURN PROBE CONTACT THE TECHNICAL SUPPORT CENTRE.
E16 ELECTRIC FAN CONTACT THE TECHNICAL SUPPORT CENTRE.
E18 INSUFFICIENT CIRCULATION CONTACT THE TECHNICAL SUPPORT CENTRE.
E21 GENERAL INTERNAL BOARD ERROR CUT OFF THE POWER SUPPLY FROM THE MAIN SWITCH AND
THEN RESTORE IT, AS SOON AS THE ERROR CODE DISAPPEARS,
THE BOILER WILL RESTART AUTOMATICALLY.
IF THE BLOCK PERSISTS CONTACT THE TECHNICAL SUPPORT
CENTRE.

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3Codicidisegnalazioneanomalie_solorisc_MIAH4_EN
3. USE
USER
CODE ICON FAULT INTERVENTION
E22 PARAMETERS PROGRAMMING
REQUEST
CUT OFF THE POWER SUPPLY FROM THE MAIN SWITCH AND
THEN RESTORE IT, AS SOON AS THE ERROR CODE DISAPPEARS,
THE BOILER WILL RESTART AUTOMATICALLY.
IF THE BLOCK PERSISTS CONTACT THE TECHNICAL SUPPORT
CENTRE.
E35 RESIDUAL FLAME PRESS THE RESET ‘ ’ BUTTON ON THE CONTROL PANEL TO
RESET THE FAULT, AS SOON AS THE ERROR CODE DISAPPEARS
FROM THE DISPLAY, THE BOILER WILL START AUTOMATICALLY.
E40 SUPPLY VOLTAGE CONTACT THE TECHNICAL SUPPORT CENTRE.