Radiant R2K 24 Manual

R2K 24 - RAD - ING - Inst.Manual - 2002.1_CSA
Installation and
Maintenance Manual for
model
WARNING
If the information in these instructions is not followed exactly, a fire or explosion may result causing property
damage, personal injury or death.
FOR YOUR SAFETY
— Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
— Installation on and service must be performed by a qualified installer, service agency or the gas supplier.
R2K 24

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R2K 24 - RAD - ING - Inst.Manual - 2002.1_CSA
SUMMARY
INTRODUCTION 4
1. INSTALLER SECTION 7
1.1. INSTALLATION 8
1.1.1. GENERAL INSTALL ATION WARNINGS 8
1.1.2. BOILER LOCATION ENVIRONMENTAL REQUIREMENTS 8
1.1.3. REFERENCE LEGISLATION 9
1.1.4. UNPACKING 10
1.1.5. OVERALL DIMENSIONS (inch) 11
1.1.6. PIPING LAYOUT/IDENTIFICATION 11
1.1.7. HYDRAULIC CONNECTION KIT 11
1.1.8. POSITIONING AND CLEARANCES TO COMBUSTIBLE MATERIAL AND SERVICE CLEARANCES 12
1.1.9. CIRCULATOR PERFORMANCE CURVE 13
1.1.10. WATER CONNECTIONS 14
1.1.11. PRESSURE RELIEF VALVE KIT 15
1.1.12. SYSTEM FILLING 16
1.1.13. FILLING THE CONDENSATE COLLECTION SIPHON 17
1.1.14. ANTI-FREEZE PROTECTION 19
1.1.15. GA S CONNECTION 20
1.1.16. ELECTRICAL CONNECTION 20
1.1.17. POWER SUPPLY 21
1.1.18. OPTIONAL ELECTRICAL CONNECTIONS 22
1.1.19. VENTING 24
1.1.20. TYPES OF EXHAUST SYSTEMS 27
1.1.21. TABLE 1: ALLOWABLE VENT LENGTHS 32
2. SUPPORT CENTRE SECTION 35
2.1. FIRST START-UP 36
2.1.1. PRELIMINARY OPERATIONS FOR FIRST START-UP 36
2.1.2. BOILER COMMISSIONING 37
2.1.3. CO2 VALUE CHECK AND CALIBRATION 38
2.1.4. ACCESSING AND PROGRAMMING THE PARAMETERS 39
2.1.5. DIGITECH CS (MIAH402) PARAMETERS TABLE 41
2.1.6. COMBUSTION BLOWER FREQUENCY/HEAT CAPACITY DIAGRAM 49
2.2. MAINTENANCE 50
2.2.7. GENERAL MAINTENANCE WARNINGS 50
2.2.8. TECHNICAL DATA 51
2.2.9. TECHNICAL ASSEMBLYTECHNICAL ASSEMBLY 53
2.2.10. INTERNAL PIPING SCHEMATIC 54
SUMMARY

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R2K 24 - RAD - ING - Inst.Manual - 2002.1_CSA
2.2.11. 3-WAY VALVE OPERATION 55
2.2.12. WIRING DIAGRAM 56
2.2.13. ACCESSING THE BOILER 57
2.2.14. ACCESSING THE ELECTRONIC BOARD 58
2.2.15. SYSTEM EMPTYING 59
2.2.16. FAULT SIGNALLING CODES 60
2.2.17. ACTIVE FUNCTIONS SIGNALLING CODES 63
2.2.18. CONVERSION TO A DIFFERENT GAS TYPE 64
2.2.19. POSITIONS OF THE ELECTRODES 65
SUMMARY

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R2K 24 - RAD - ING - Inst.Manual - 2002.1_CSA
2.
INTRODUCTION
WARNING
Before starting any operation it is mandatory to read
this instruction manual, in relation to the activities
performed 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 information related to a
general danger that if not complied with, may cause
serious personal damage or even death.
ATTENTION
It identifies information that if not complied
with may cause small or medium level burns to the
person or serious damage to the boiler.
WARNING
It identifies a precaution information that
must be observed in order to avoid damaging the
machine or various parts.
MANUAL STORAGE
The manual must be stored carefully and replaced
in case of deterioration and/or low legibility.
If you misplace the use and maintenance manual,
you can request a copy from the Technical Support
Center. It is important to provide the model number
and serial number of the unit which is found on the
inside surface of the right panel.
INTRODUCTION

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R2K 24 - RAD - ING - Inst.Manual - 2002.1_CSA
2.
MANUFACTURER WARRANTY AND
RESPONSIBILITY
The Manufacturer’s warranty is provided only
through its own authorized Technical Support
Centers, listed for each Region on the site
www.radianthydronics.com, and covers all
manufacturing defects at the time of sale.
The technical and functional features of the unit are
ensured when proper installation and miantenance
is carried out. Conditions of Manufacturer’s
warranty includes the following:
1. The customer is aware of and follows
instructions contained in the manuals that
accompany the product.
2. Annual service check up is required to keep
warranty valid.
3. The unit is installed and operated in the
conditions in which it is designed to.
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;
› 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 with reference to
ANSI Z21.13-2017 • CSA 4.9-2017 GAS FIRED LOW
PRESSURE STEAM AND HOT WATER BOILERS,
declares that its gas boilers are professionally
manufactured.
The materials used such as copper, brass,
stainless steel create a homogeneous, compact
and functional assembly, easy to install and
maintain. The boiler is equipped with all
accessories necessary to provide a dependable
independent heating unit. All boilers are tested
and delivered with a quality certificate signed by
the testing department.
INTRODUCTION

The installation operations described in this section should
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 SECTION
1. INSTALLER SECTION

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R2K 24 - RAD - ING - Inst.Manual - 2002.1_CSA
1. INSTALLATION
INSTALLER
1.1. INSTALLATION
1.1.1. GENERAL INSTALLATION
WARNINGS
This boiler must be installed in accordance with
local codes, if any; if not, follow the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, or the Natural
Gas and Propane Installation Code, CAN/CSA
B149.1, as applicable.
WARNING
This unit 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 out of contract responsibility for
damage caused to people, animals or property due
to errors during installation.
WARNING
This boiler should be installed only by
qualified service technician, 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.
WARNING
After having removed the packing, make
sure the equipment is intact. In case of doubt, do not
use the equipment and contact the supplier.
BEFORE INSTALLING THE BOILER, THE
INSTALLER MUST MAKE SURE THAT THE
FOLLOWING CONDITIONS ARE PRESENT:
› The unit is connected to a heating plant 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 air flow.
› The unit 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 gas lines are properly 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 required by the
equipment, value indicated on the data plate.
WARNING
Use only original RADIANT optional or kit
accessories (including electrical).
1.1.2. BOILER LOCATION
ENVIRONMENTAL
REQUIREMENTS
The boiler shall be installed so the gas ignition
system components are protected from water
(dripping, spraying, rain, etc.) during appliance
operation and service (circulator replacement,
condensate trap, control replacement, etc.).
The boiler installed using inside air supply must
provide provisions for Combustion Air and
Ventilation Air in accordance with section 5.3, Air
for Combustion and Ventilation, of the National
Fuel Gas Code, ANSI Z 223,1/NFPA 54, or section
7,2, 7.3, or 7.4, of CAN/CSA B 149, Installation
Codes, or local codes having jurisdiction.
Where an exhaust fan or any other air consumption
appliance is installed in the same space as the

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R2K 24 - RAD - ING - Inst.Manual - 2002.1_CSA
1. INSTALLATION
INSTALLER
boiler, sufficient air openings must be available to
provide fresh air when all appliances are operating
simultaneously. It is essential that in rooms
where the boiler is installed to provide as much
air as required by normal combustion of the gas
consumed by the varius appliances. Consequently,
it maybe necessary to make openings in the walls
to provide air inlet into the rooms.
Application where air from the structure is used
to supply combustion air for the unit, the following
openings are required:
1. Have a total free section of a least 25 mm2 every
kW (1 in2 for every 1000 Btu/hr) of heat input, with
a minimum of 100 cm2 (15.5 in2);
2. Where required by code or when required for
additional opening must be provided at the highest
practical elevation.
With a hermetically sealed combustion chamber
and air supply circuit from outdoors, the boiler may
be installed in any room in the home. Keep boiler
area clear and free from combustible materials,
gasoline and other flammable vapors and liquids.
WARNING
If the temperature in the boiler installation
location goes below 14°F centigrades, please fill
the system with anti-freeze liquid and insert and
electrical resistances kit (see 1.1.14 ‘ANTI-FREEZE
PROTECTION’).
1.1.3. REFERENCE LEGISLATION
This boiler must be installed in accordance with
local codes, if any; if not, follow the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, or the Natural
Gas and Propane Installation Code, CAN/CSA
B149.1, as applicable.

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R2K 24 - RAD - ING - Inst.Manual - 2002.1_CSA
1. INSTALLATION
INSTALLER
1.1.4. UNPACKING
WARNING
Please unpack the boiler just before
installing it. The Company is not responsible for
the damages caused to the device due to incorrect
storage.
WARNING
The packing elements (cardboard
box, wooden crate, nails, fasteners, plastic bags,
expanded polystyrene, etc.) are dangerous and must
be kept out of the reach of children, they should be
biscarded properly.
To unpack the boiler, proceed as follows:
› Place the packed boiler on the floor (fig. 1-A)
and remove the fasteners opening the four flaps
of the box outwards.
› Turn the boiler at 90° holding it with your hand
(fig. 1-B).
› Lift the box (fig. 1-C) and remove the guards (fig.
1-D).
C
B
D
A
INSTALLATION
fig. 1