Radiant R1K 120 Service manual

R1K 120 - RAD - ING - Manuale - 2201.1_SKM1_no_INAIL_firm.L226F
Installation, Use
and Maintenance Manual
for model
0476
R1K 120
Premix condensing system boiler
only heating

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R1K 120 - RAD - ING - Manuale - 2201.1_SKM1_no_INAIL_firm.L226F
R1K 120_EN
SUMMARY
SUMMARY
INTRODUCTION 4
1. INSTALLER SECTION 7
1.1. INSTALLATION 8
1.1.1. GENERAL INSTALLATION WARNINGS 8
1.1.2. BOILER LOCATION ENVIRONMENTAL REQUIREMENTS 8
1.1.3. REFERENCE LEGISLATION 9
1.1.4. BOILER OVERALL DIMENSIONS 10
1.1.5. HYDRAULIC CONNECTIONS 10
1.1.6. OVERALL DIMENSIONS OF THE HEATING ONLY MODULE 10
1.1.7. OVERALL DIMENSIONS OF THE MODULE FOR REMOTE STORAGE SYSTEM 11
1.1.8. MECHANICAL SYSTEM DIAGRAM 12
1.1.9. SYSTEM ACCESSORIES 15
1.1.10. PUMP HEAD / FLOW DIAGRAM 17
1.1.11. GENERATOR INSTALLATION 18
1.1.12. HYDRAULIC CONNECTION 21
1.1.13. CHARACTERISTICS OF THE WATER OF THE SYSTEM 22
1.1.14. SYSTEM FILLING 24
1.1.15. CONDENSATE DRAIN 25
1.1.16. FROST PROTECTION 27
1.1.17. GAS CONNECTION 28
1.1.18. ELECTRICAL CONNECTION 28
1.1.19. POWER SUPPLY 29
1.1.20. OPTIONAL ELECTRICAL CONNECTIONS 30
1.1.21. FUME EXHAUST FITTINGS 35
1.1.22. TYPES OF FUME EXHAUST SYSTEMS 36
2. SUPPORT CENTRE SECTION 41
2.1. FIRST START-UP 42
2.1.1. PRELIMINARY OPERATIONS FOR FIRST START-UP 42
2.1.2. BOILER COMMISSIONING 43
2.1.3. CO2 VALUE CHECK AND CALIBRATION 44
2.1.4. ACCESSING AND PROGRAMMING THE PARAMETERS 45
2.1.4. DIGITECH CS PARAMETERS TABLE (MIAH412) 48
2.1.5. ELECTRIC FAN FREQUENCY/HEAT CAPACITY DIAGRAM* 58
2.2. MAINTENANCE 59
2.2.6. GENERAL MAINTENANCE WARNINGS 59
2.2.8. TECHNICAL DATA 60
2.2.9. TECHNICAL ASSEMBLY 62

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R1K 120_EN
SUMMARY
2.2.7. HYDRAULIC BOARD 63
2.2.8. SLAVE BOARD ELECTRICAL CONNECTIONS 64
2.2.9. MASTER BOARD ELECTRICAL CONNECTIONS 65
2.2.13. ACCESSING THE BOILER 66
2.2.10. ACCESSING THE MASTER ELECTRONIC BOARD 67
2.2.11. ACCESSING THE SLAVE ELECTRONIC BOARD 68
2.2.16. SYSTEM EMPTYING 69
2.2.12. FAULT SIGNALLING CODES 70
2.2.13. ACTIVE FUNCTIONS SIGNALLING CODES 75
2.2.14. GAS TYPE TRANSFORMATION 76
3. USER SECTION 77
3.1. USE 78
3.1.1. GENERAL USE WARNINGS 78
3.1.2. CONTROL PANEL 79
3.1.3. DISPLAY ICONS 80
3.1.4. INFO MENU DISPLAY DATA 81
3.1.5. START-UP 82
3.1.6. OPERATING MODE 82
3.1.7. INFORMATIONAL NOTE ON ANTI-FREZZE FUNCTION 83
3.1.8. FAULT SIGNALLING CODES 84
3.1.9. ACTIVE FUNCTIONS SIGNALLING CODES 86
3.1.10. FAST H2O FUNCTION 86
3.1.11. MAINTENANCE 87
3.1.12. EXTERNAL CASING CLEANING 87
3.1.13. DISPOSAL 87

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_Prefazione_EN
1.
INTRODUCTION
WARNING
Before starting any operation it is mandatory to
read this instruction manual, in relation to the
activities to be carried out as described in each
relevant section. Proper operation and optimal
performance of the boiler are ensured by strict
compliance with all the instructions given in this
manual.
The installation, use and maintenance manual is
an integral and essential part of the product and
must be delivered to the user.
MANUAL USERS
The manual users are all those who install, use
and maintain the boiler.
The boiler must be used and accessed only by
qualified operators that fully read and understood
the use and maintenance manual, paying particular
attention to the warnings.
READING AND SYMBOLS OF THE MANUAL
To ease the understanding of this manual,
recurrent symbols where used, in particular:
› On the outer margin of the page is placed a
thumb index indicating the type of user to which
the instructions in that section address.
› The titles are differentiated by thickness and
size in accordance with their hierarchy.
› The images contain important parts described
in the text, marked with numbers or letters.
› (See chap. “chapter name”): this entry indicates
another section in the Manual that you should
refer to.
› Device: this term is used referring to the boiler.
DANGER
It identifies an information related to a
general danger that if not complied with, may cause
serious personal damage or even death.
ATTENTION
It identifies an information that if not
complied with may cause small or medium level
lesions to the person or serious deterioration to the
boiler.
WARNING
It identifies a precaution information that
must be observed in order to avoid damaging the
machine or parts of it.
MANUAL STORAGE
The manual must be carefully stored and replaced
in case of deterioration and/or low legibility.
If you misplace the use and maintenance manual,
you can request it from the Service Centre giving
the serial number and model of the boiler indicated
on the data plate placed on the right side of its
casing.
As an alternative, the use and maintenance manual
can be downloaded free of charge from the on-
line site www.radiant.it, accessing the “download”
section and entering the boiler model.
INTRODUCTION

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_Prefazione_EN
1 .
MANUFACTURER WARRANTY AND
RESPONSIBILITY
The warranty of the Manufacturer is provided only
through its own authorized Service Centres, listed
on the official web site (www.radiant.it), and covers
all conformity defects at the moment of sale.
The technical and functional features of the device
are ensured by its use in compliance:
1. with the use and maintenance instructions
contained in the manuals accompanying the
product, the content of which the customer
certifies that he is aware;
2. with the conditions and purposes to which
devices of the same type are intended.
For more information on the warranty validity,
its duration, the obligations and the exemptions,
please consult the First start-up certificate
attached to this manual.
The manufacturer reserves:
› the right to modify the tools and relative
technical documentation without any obligation
to third parties; neither will the company be
held responsible for any inaccuracies in this
handbook deriving from printing or translation
errors;
› the material and intellectual ownership of
this manual and forbids its distribution and
duplication, even partial, without prior written
authorization.
PRODUCT CONFORMITY
RADIANT BRUCIATORI spa declares that its gas
boilers comply with the European Directives and
with the requirements provided in the European
standards below:
› Eco-design Directive 2009/125 CE,
› Energy labelling Directive 2010/30/CE,
› Regulation EU 811/2013,
› Regulation EU 813/2013,
› Regulation EU 2016/426,
› Electromagnetic compatibility Directive
2014/30/CE,
› Performance Directive 92/42/CE,
› Low voltage Directive 2014/35/CE.
The materials used such as copper, brass,
stainless steel create a homogeneous, compact
and functional assembly, easy to install and
manage. In its simplicity, the boiler is equipped
with all accessories necessary to render it a
veritable independent heating unit. All boilers
are tested and delivered with a quality certificate
signed by the tester.
INTRODUCTION

The installation operations described in this section, must
be performed only by qualified personnel, having the
appropriate technical training in the field for the installation
and maintenance of components of civil and industrial
domestic hot water production and heating plants.
1. INSTALLER SECTION1. INSTALLER SECTION

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1Avvertenzegeneraliperl'installazione_Localecaldaia_cond_altapotenza_EN
1. INSTALLATION
INSTALLER
1.1. INSTALLATION
1.1.1. GENERAL INSTALLATION
WARNINGS
ATTENTION
This boiler may be used only for the
purpose for which it has been designed: heat water
to a temperature below boiling point at atmospheric
pressure. Any other use is considered wrong and
dangerous. The manufacturer is excluded from any
contractual or extra-contractual responsibility for
damages caused to people, animals or property due
to errors during installation.
ATTENTION
This boiler must be installed only
by qualified personnel, having the appropriate
technical training in the field for the installation and
maintenance of components of civil and industrial
domestic hot water production and heating plants.
ATTENTION
After having removed the packing, make
sure the device is intact. In case of doubt, do not use
the device and contact the supplier.
BEFORE INSTALLING THE BOILER, THE
INSTALLER MUST MAKE SURE THAT THE
FOLLOWING CONDITIONS ARE MET:
› The device is connected to a heating system
and a water supply network appropriate for its
power and performance.
› The location must be properly vented through
an air vent.
› The air vent must be placed at floor level to
prevent it from being obstructed, protected by
a grid that does not hamper the useful passage
section.
› The device is suitable for use with the type of
gas available by checking the boiler data plate
(placed on the inner side of the front casing).
› Make sure that the pipes and joints are perfectly
sealed, without any gas leaks.
› Make sure that the grounding system works
properly.
› Make sure that the electrical system is suitable
for the maximum power absorbed by the device,
value indicated on the data plate.
WARNING
Use only original RADIANT optional or kit
accessories (including ones).
1.1.2. BOILER LOCATION
ENVIRONMENTAL
REQUIREMENTS
The boiler has a thermal power over 35 kW and,
therefore, it must be installed only into a heating
unit.
The device installation location should be vented
due to the presence of threaded joints on the
gas supply line. The location should be therefore
provided with vents as to ensure air exchange,
with output grid in the natural accumulation area
of potential gas losses.
WARNING
DO NOT install the boiler in a technical
compartment near a swimming pool or a laundry, to
avoid that the combustion air is exposed to chlorine,
ammonia or alkaline agents that may worsen the
corrosion phenomenon of the heat exchanger. Failure
to observe this caution will void the warranty of the
heat exchanger.

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1Avvertenzegeneraliperl'installazione_Localecaldaia_cond_altapotenza_EN
1. INSTALLATION
INSTALLER
WARNING
If the temperature in the appliance
installation location goes below -10 centigrades,
please fill the plant with anti-freeze liquid and insert
and a frost prtotection kit (see chapter ‘ANTI-FREEZE
PROTECTION’).
WARNING
The manufacturer will not be held
responsible for damages caused by incorrect
installation not in conformity with the above
mentioned instructions and not duly protected from
freeze.
1.1.3. REFERENCE LEGISLATION
The installation must be done according to
the requirements of current legislation and in
compliance with local technical regulations,
according to the indications of the good technique.

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1 Dimensioni_R1K 100_no INAIL_EN
2. INSTALLATION
INSTALLER
1.1.4. BOILER OVERALL DIMENSIONS
1.1.5. HYDRAULIC CONNECTIONS
1.1.6. OVERALL DIMENSIONS OF THE
HEATING ONLY MODULE
138
308
157
477
642
670
485
64
2
670
485
R
SC
GA
108
138
43
123 184 240 123
185165 320
SC
1794
504
774
210
178
320 244
169
300
237 237
509
524
300
237 237
300
R- HEATING RETURN Ø 1” 1/2
G- GAS Ø 1”
A- HEATING FLOW Ø 1” 1/2
SC- CONDENSATE DRAIN Ø 25 mm
RI RETURN SYSTEM Ø 1”1/2
AI DELIVERY SYSTEM Ø 1”1/2

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1 Dimensioni_R1K 100_no INAIL_EN
2. INSTALLATION
INSTALLER
1.1.7. OVERALL DIMENSIONS OF
THE MODULE FOR REMOTE
STORAGE SYSTEM
1794
504
774
210
178
320 244
169
300
237 237
524
9999316257 192227
300
237 237
300
RI RETURN SYSTEM Ø 1”1/2
AI DELIVERY SYSTEM Ø 1”1/2
RB HEATING FLOW TO DHW
STORAGE CYLINDER
Ø 1”
AB HEATING FLOW TO DHW
STORAGE CYLINDER
Ø 1”

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1Schemameccanicoimpianto_R1K100_noINAIL_firm.L226C_EN
1. INSTALLATION
INSTALLER
1.1.8. MECHANICAL SYSTEM DIAGRAM
HEATING ONLY INSTALLATION
The boiler can manage a heating system at a fixed point delivery temperature or in climatic compensation
with an external probe, managing the modulation according to the actually requested thermal load.
DESCRIPTION
1 EXTERNAL PROBE
2 REMOTE OPEN THERM
3 CONTROL PANEL
AI LOAD SYSTEM
RI RETURN SYSTEM
CI DELIVERY SYSTEM
GGAS
SC FUME EXHAUST SYSTEM CONDENSATE
1
2
3
AI
RI
CI
SC
G

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1Schemameccanicoimpianto_R1K100_noINAIL_firm.L226C_EN
1. INSTALLATION
INSTALLER
HEATING INSTALLATION + REMOTE STORAGE SYSTEM
The boiler can manage a heating system at a fixed point delivery temperature or in climatic compensation
with an external probe, managing the modulation according to the actually requested thermal load.
The boiler probe activates the system in order to pre-heat the boiler, the boiler will be put into domestic
circuit mode and the deviating valve switches to the remote storage system.
DESCRIPTION
1 EXTERNAL PROBE
2 REMOTE OPEN THERM
3 CONTROL PANEL
4 REMOTE STORAGE SYSTEM NTC PROBE
AI LOAD SYSTEM
RI RETURN SYSTEM
CI DELIVERY SYSTEM
GGAS
SC FUME EXHAUST SYSTEM CONDENSATE
4
1
2
3
CI
AI
RI
SC
G

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1Schemameccanicoimpianto_R1K100_noINAIL_firm.L226C_EN
1. INSTALLATION
INSTALLER
HEATING INSTALLATION + REMOTE HEAT EXCHANGER FOR INSTANTANEOUS D.H.W. PRODUCTION
The boiler can manage a heating system at a fixed point delivery temperature or in climatic
compensation with an external probe, managing the modulation according to the actually requested
thermal load.
In the version with heat exchanger for instantaneous D.H.W. production, the flow-meter at cold water
inlet, detects the sanitary request, switches the diverter valve on the exchanger and activates the boiler
in sanitary mode. The NTC temperature probe at the exit of the exchanger detects the D.H.W. outlet
temperature ensuring the Setpoint set by the user.
DESCRIPTION
1 EXTERNAL PROBE
2 REMOTE OPEN THERM
3 CONTROL PANEL
4 NTC PROBE
5 DHW PLATE EXCHANGER
6FLUXMETER
ACS DOMESTIC HOT WATER OUTLET
AFS DOMESTIC COLD WATER INLET
AI LOAD SYSTEM
RI RETURN SYSTEM
CI DELIVERY SYSTEM
GGAS
SC FUME EXHAUST SYSTEM CONDENSATE
AFS
ACS
4
1
2
3
6
5
AI
RI
CI
SC
G

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1Accessoriimpianto_R1K100_noINAIL_firm.L226C_EN
1. INSTALLATION
INSTALLER
1.1.9. SYSTEM ACCESSORIES
DIVERTER VALVE KIT
The kit allows combining the thermal generator
with a remote storage system for the production of
domestic hot water (cod. 26097LP, fig. 1).
In this configuration, it is possible to manage the
domestic circuit in an independent manner, by
implementing a diverter valve which ensures the
power supply of the serpentine upon the pre-
heating request of the boiler.
The kit is completed with a probe for the external
boiler and with a power supply cable of the diverter
valve which is connected directly to the electronic
board of the generator.
INSTANTANEOUS D.H.W. PRODUCTION KIT
The kit allows instantaneous D.H.W. production
management through a remote heat exchanger. The
instantaneous D.H.W. production kit (code 65-00819,
fig. 1) includes the diverter valve kit described above
and a flow-meter to be installed at cold water inlet.
HYDRAULIC SEPARATOR
In order to always ensure to the heat generator an
operation without problems related to two low heat
capacities (due, for example, to closed radiators or
to impurities of various type), it is strictly necessary
to install a trip unit, as an alternative, a heat
exchanger which separates the hydraulic circuit.
Choosing a separation system in the detriment of
another is exclusively imposed by the type of the
system.
In case of a new system or in case of replacement of
the generator with the possibility to wash the water
pipes, it is recommended to install a hydraulic
separator (code 12-01735, fig. 1).
cod. 65-00053cod. 12-01735
+
cod. 65-00819
cod. 26097LP
fig. 1

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1Accessoriimpianto_R1K100_noINAIL_firm.L226C_EN
1. INSTALLATION
INSTALLER
The hydraulic separator creates an area with
reduced load loss, which allows hydraulically
rendering independent the primary and secondary
circuits connectedtoit.Withthe hydraulicseparator
you can thus have a production circuit with constant
heat capacity and a distribution circuit with variable
heat capacity, operation conditions typically specific
to modern air-conditioning systems.
Particular attention should be given, during the
design phase, to possible temperature variations
to which the circuits can be subject due to the
generated mixing inside the hydraulic separator.
A secondary circuit with a heat capacity higher
than the circulatory one of the primary circuit
generates, in fact, by means of the hydraulic
separator, a delivery temperature lower than the
one of the primary circuit.
INSTANTANEOUS D.H.W. PRODUCTION KIT - R1K
75-R1K 100 - ON UNIVERSAL FRAME
The kit, in combinationwith a plate exchanger, allows
instantaneous D.H.W. production. It is installed on
the universal frame. The kit (Code 65-00837, fig.2),
in addition to the pipes and the and a fixing bracket,
includes a plate exchanger (50 plates), a flow meter
to be installed onto the inlet cold water pipe and a
D.H.W. clip sensor to be fitted onto the DHW outlet
pipe.
cod. 65-00837
fig. 2

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1Diagrammaportata-prevalenzacircolatore_R1K100_YONOSPARA25-9_EN
1. INSTALLATION
INSTALLER
1.1.10. PUMP HEAD / FLOW DIAGRAM
Load losses of only one active unit
Wilo-Yonos PARA 25/9

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1 Installazione generatore_R1K 100_EN
2. INSTALLATION
INSTALLER
1.1.11. GENERATOR INSTALLATION
MINIMAL TECHNICAL SPACES
In order to allow the access inside the boiler for
maintenance operations, you have to respect the
minimum technical spaces indicated in figure 1.
WARNING
The incorrect slopes of the device can
cause the incorrect discharge of condensate by
means of the discharge duct with consequent
condensate stagnation inside the condensate
module.
WARNING
The boiler must be installed only on a
vertical solid wall, able to sustain its weight.
WARNING
The boilers have the electrical
protection degree IPX5D. The outdoor installation
in partially protected environments (platform roof,
balcony - see fig. 2) is allowed in compliance with
the related standards. The Company is not held
liable for installations in environments with a
temperature under –10°C or non-compliant with
the above indications.
H
A
X Y
B
A
A
A - 200 mm
B - 300 mm
X - 60 mm
Y - 60 mm
H - 1,000 mm fig.1
fig. 2
1,200 mm minimum
SECTION A-A
balcony/ platform roof

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1 Installazione generatore_R1K 100_EN
2. INSTALLATION
INSTALLER
WALL MOUNTING BY MEANS OF FIXING BRACKET
WARNING
In order to avoid condensate stagnations inside the condensate module, check that the boiler
is slightly inclined towards the rear part (1-1.5°) in order to evacuate the condensate.
WARNING
The device must be installed only on a vertical solid wall, able to sustain its weight.
In order to fix the thermal generator on the wall, proceed as follows:
1. fix on the wall (fig. 1), using the fisher, the upper bracket;
2. hook the eyelets of the boiler into the adequate hooks (fig. 2);
3. unscrew the fixing screws of the lower bracket (fig. 3) ensuring the free sliding of the bracket (fig. 4)
towards the boiler;
4. adjust the inclination of the boiler (fig. 5) by sliding the lower bracket ensuring an inclination of the
boiler, against the vertical, of about 1–1.5°.
1-1.5°
fig. 2
fig.1
fig. 3
fig. 4
fig. 5
LOWER
BRACKET
LOWER
BRACKET

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1 Installazione generatore_R1K 100_EN
2. INSTALLATION
INSTALLER
INSTALLATION ON SELF-SUPPORTING FRAME
WARNING
During the installation of the heat generator, pay maximum attention to the installation of the
self-supporting frame. The frame must rest on a perfectly flat surface and, when supported against
the wall, the latter must be perfectly angled. The incorrect slopes of the device can cause the incorrect
discharge of condensate by means of the discharge duct with consequent condensate stagnation inside
the condensate module. The correct installation of the frame allows obtaining, acting on the lower
bracket, a counterslope of the device against the perpendicular.
In order to mount the frame and therefore the generator, proceed as follows:
1. check the angle of the wall with the floor;
2. assemble the side profiles 3 and 4 on the pillars 1 and 2 (fig. 1);
3. assemble the side pillars 1 and 2 on the horizontal crossbeam 5;
4. assemble the central crossbeam 8 and the lower one 7;
5. complete the assembly, position the frame binding it to the wall 9 (if provided) and on the floor 10;
6. mount the upper bracket 6 and hook the eyelets of the boiler into the adequate hooks 11;
7. make sure that the frame is angled, adjust the inclination of the boiler by means of the lower bracket
(see "Wall mounting by means of fixing bracket") ensuring an inclination of the boiler, against the
vertical, of about 1–1.5°;
8. complete the installation by assembling the hydraulic components.
4
6
3
7
5
1
2
8
10
10
10
10
9
9
11
11
11
fig.1