Riello GITRE B/100 LN Manual

cod. 20123982 rev. 1 10/2016
GITRÈ LN GITRÈ B/100 LN
GITRÈ LN
EN INSTALLATION AND MAINTENANCE MANUAL

2
Dear heating engineer,
Congratulations on having chosen a Rboiler. You have se-
lected a modern, quality product that is designed to give de-
pendable, efcient and safe service and to provide comfort in
the home for many years to come.
This manual provides information that is essential to the in-
stallation of the appliance. Used in conjunction with your own
knowledge and expertise it will enable you to install the appli-
ance quickly, easily, and correctly.
Please accept our thanks and our congratulations on your choice
of product.
Riello S.p.A.
CONFORMITY
GITRÈ LN boilers conform to the following directives:
−Directive 92/42/EEC on efciency requirements
−Electromagnetic Compatibility Directive 2014/30/EU
−Low Voltage Directive 2014/35/EU
−Ecodesign Directive 2009/125/CE for energy-related prod-
ucts
−Energy Labelling Directive 2010/30/EU
−Delegated Regulation (EU) N. 811/2013
−Delegated Regulation (EU) N. 813/2013
−Delegated Regulation (EU) N. 814/2013
9 This product must only be used for the purpose for which it
is designed and made, as specied by R. Rdeclines
all responsibility, contractual or other, for damage to prop-
erty or injury to persons or animals caused by improper in-
stallation, adjustment, maintenance or use.
ENGLISH
RANGE
MODEL CODE
GITRÈ 4 LN 20123950
GITRÈ 5 LN 20123952
GITRÈ 6 LN 20123953
GITRÈ 5 B/100 LN 20123954
ACCESSORIES
For a complete list of accessories and details of their compatibil-
ity, refer to the Catalogue.

3
This manual, Code 20123982 - Rev. 1 (10/2016)
comprises 48 pages.
CONTENTS
The following symbols are used in this manual:
9 CAUTION! = Identies actions that require caution and
adequate preparation.
0 STOP! = Identies actions that you MUST NOT do.
This manual, Code
- Rev.
comprises
pages.
1 GENERAL INFORMATION ............................4
1.1 General Safety Information ......................4
1.2 Precautions..................................4
1.3 Description of the appliance .....................5
1.4 Safety and control devices.......................5
1.5 Identication ................................6
1.6 System layout ................................6
1.7 Technical specications.........................9
1.7.1 Water-side pressure drop ...................... 10
1.8 Location of sensors ............................11
1.9 Control panel ............................... 12
2 INSTALLATION .....................................14
2.1 Unpacking the product ........................ 14
2.1.1 Positioning of labels .......................... 14
2.2 Overall dimensions and weights ................. 14
2.3 Moving and removing the packing ............... 15
2.4 Installation premises ......................... 16
2.4.1 Recommended minimum distances .............. 16
2.5 Installation in older systems and systems requiring
modernisation .............................. 16
2.6 Water connections ............................17
2.7 Typical water system schematics ................. 18
2.8 Fuel connections............................. 19
2.9 Hoses should also be xed to the oor and suitably
protected whenever possible ...................20
2.9.1 Technical specications of stack .................20
2.9.2 Connection to the stack .......................20
2.10 System lling and emptying .................... 22
2.10.1 Water quality requirements..................... 22
2.10.2 Filling ..................................... 22
2.10.3 Emptying ..................................23
2.11 Wiring diagram ..............................24
2.12 Electrical connections .........................26
3 COMMISSIONING AND MAINTENANCE...............28
3.1 Preparing for initial startup .....................28
3.2 Initial startup ...............................28
3.2.1 Ignition failure ..............................29
3.2.2 Resetting the burner and safety thermostat ........30
3.3 Checks during and after initial start-up ...........30
3.3.1 Storage cylinder pump control .................. 31
3.3.2 Burner control and adjustment.................. 32
3.3.3 Burner functioning and programming ............33
3.4 Temporary shutdown .........................40
3.5 Preparing for extended periods of disuse ..........40
3.6 Cleaning and servicing the boiler ................ 41
3.7 Annual cleaning ............................. 41
3.7.1 Cleaning and servicing the boiler ................ 41
3.7.2 Cleaning the heat exchanger....................43
3.7.3 Checking and replacing the storage cylinder anode
(GITRÈ 5 B/100 LN model).......................44
3.8 Extraordinary cleaning ........................45
3.8.1 Cleaning the storage cylinder ...................45
3.9 External cleaning ............................45
3.10 Troubleshooting .............................46
4 RECYCLING AND DISPOSAL ........................47

4
GENERAL INFORMATION
1 GENERAL INFORMATION
1.1 General Safety Information
9 Check that the product is complete, undamaged and as or-
dered as soon as you receive it. Report any discrepancies or
damage to the Rdealer who sold it.
9 This product must be installed by a legally qualied heat-
ing engineer. On completion of the installation, the install-
er must issue the owner with a declaration of conformity
conrming that the installation has been completed to the
highest standards in compliance with the instructions pro-
vided by Rin this instruction manual, and that it con-
forms to all applicable laws and standards.
9 This product must only be used for the purpose for which it
is designed and made, as specied by R. Rdeclines
all responsibility, contractual or other, for damage to prop-
erty or injury to persons or animals caused by improper in-
stallation, adjustment, maintenance or use.
9 The room where the boiler is installed must be proper-
ly ventilated to ensure a sufcient supply of air for correct
combustion.
9 If you notice any water leaks, disconnect the boiler from the
mains electricity supply and shut off the water supply.
9 The boiler must be serviced at least once a year.
9 Periodically check that pressure in the central heating cir-
cuit, when cold, is approximately 1.5 bar and below the
maximum limit specied for the boiler.
9 If the boiler is not going to be used for an extended peri-
od of time, perform the operations described later in this
manual.
9 This manual is an integral part of the equipment and there-
fore must be stored carefully and must ALWAYS accompany
the boiler even if it is sold to another Owner or User or trans-
ferred to another plant. If it is damaged or lost, request an-
other copy from your local Technical Assistance Service R.
1.2 Precautions
The operation of any appliance that uses fuel, electrical power
and water demands that a number of fundamental safety pre-
cautions be respected:
0 Do not allow children or inrm persons to operate the sys-
tem unsupervised.
0 It is forbidden to use electrical devices or equipment, such
as switches, appliances, etc. if there is a smell of gas or un-
burnt products. If so:
−Ventilate the room, opening doors and windows
−Close the fuel shut-off cock.
0 Do not touch the boiler while barefoot or wet.
0 Never clean or service the boiler without rst disconnect-
ing it from the mains electricity supply by turning the mains
power switch and the control panel switch OFF.
0 Do not tamper with or adjust the safety or control devices
without prior authorisation and instructions from the man-
ufacturer.
0 Never pull, disconnect, or twist the electrical cables coming
from the appliance even if it is disconnected from the mains
electricity supply.
0 Do not obstruct or restrict the vents in the room where the
boiler is installed. Adequate ventilation is essential for cor-
rect combustion.
0 Do not expose the boiler to the elements. It is not designed
for use outdoors.
0 It is prohibited to leave inammable substances and con-
tainers in the room where the boiler is installed.
0 Do not dispose of packaging material into the environment,
or leave it within the reach of children, since it can become
a potential hazard. Dispose of packaging material in com-
pliance with applicable legislation.
0 It is forbidden to operate the boiler without water.

5
GENERAL INFORMATION
1.3 Description of the appliance
The GITRÈ LN boiler is an oil fuelled hot water boiler capable
of low temperature functioning. GITRÈ LN versions are designed
only for central heating applications. The GITRÈ B/100 LN version
is equipped with a 100 litre vitried storage cylinder and can
be used for central heating and domestic hot water production.
The cast iron boiler body features a triple ue pass design and a
horizontal combustion chamber.
The front cover opens fully to facilitate the inspection, mainte-
nance and cleaning of internal parts and to minimise service
time.
The boiler body is covered in high density glass wool insulation
to reduce heat loss.
The boiler is tted with a single stage, low NOx, fuel oil burner.
The GITRÈ LN boiler's control logic incorporates a total shutdown
function to minimise energy consumption:
−The GITRÈ LN (heating only) model only starts up if the
central heating system requests heat (i.e. when the room
thermostat switches the heating on);
−If the GITRÈ B/100 LN (heating and DHW) model is in
"Summer" mode ("Summer/Winter" selector turned to
Summer position), it only starts up to restore the setpoint
temperature of the water in the storage cylinder. If it is
in "Winter" mode ("Summer/Winter" selector turned to
Winter position), it starts up either in response to a re-
quest for heat from the heating system (i.e. when the
room thermostat switches the heating on) or to restore
the setpoint temperature of the water in the storage
cylinder (DHW heat requests are prioritised over central
heating requests)..
1.4 Safety and control devices
GITRÈ LN boilers incorporate the following safety and control de-
vices:
−A manual reset safety thermostat that forces a safe-
ty shutdown if boiler temperature exceeds the safety
threshold (110°C). The sensor used to monitor this tem-
perature is located on the body of the heat exchanger;
−A minimum temperature thermostat that enables the
central heating pump only if boiler temperature exceeds
the minimum permissible (50°C);
−An electronic burner controller that monitors the correct
functioning of the selected burner program and sends
a lockout signal to the control panel in the event of an
error.
ONLY FOR GITRÈ B/100 LN MODELS
−A maximum temperature thermostat that shuts down
the burner if boiler temperature reaches or exceeds the
default maximum limit ( 82°C) during the heating of do-
mestic hot water in the storage tank;
−A heat dissipation thermostat that starts up the storage
tank pump to dissipate excess heat in order to keep boil-
er temperature below the safety threshold (90°C).
9 The intervention of a safety device indicates a potentially
dangerous malfunction in the system. Contact the manu-
facturer’s Technical Assistance Service immediately.
9 Safety devices must only be replaced by the manufacturer's
Technical Assistance Service using original spare parts. Refer
to the spare parts catalogue supplied with the boiler.
0 Do not use the boiler if any of its safety devices are faulty.
Always check that the boiler is functioning correctly after repairs
have been made.

6
GENERAL INFORMATION
1.5 Identication
The products are identied by:
Serial number plate
This is located on the boiler body and species the serial
number, model, and main technical specications.
S
X
%
mg/kWh
NO
Pms= bar T = °C
Qn(min)=
Pn(min)=
T067793GE
Qn(max)=
Pn(max)=
Mod.
Cod.
N°
kW
kW
kW
kW kW
D= l/minkW
kW
kW
Pmw= bar T = °C
IP
WV~Hz
RIELLO S.p.A.
Via Ing.Pilade Riello 7
37045 Legnago (VR) - ITALY
TIPO/TYP/TYP/TYPE/TIPO/TIPO:
COMBUSTIBILE/COMBUSTIBLE/BRENNSTOFF/BRANDSTOF/FUEL/COMBUSTIBLE/COMBUSTÍVEL:
PAESE DI DESTINAZIONE/PAYS DE DESTINATION/BESTIMMUNGSLAND/LAND VON BESTEMMING
COUNTRY OF DESTINATION/PAÍS DE DESTINO/PAÍS DE DESTINO:
T067793GE
Mod.
Cod.
N°
Qn(max) kW
Pn(max) kW
bar
Pms
RIELLO S.p.A.
Via Ing.Pilade Riello 7
37045 Legnago (VR) - ITALY
Data plate
This lists the technical specications and performance of the
product.
DHW section
Central heating section
Qn Rated heat input
Pn Rated useful heat output
IP Electric degree of protection
Pmw Maximum operating pressure, DHW circuit
Pms Maximum operating pressure, CH circuit
TTemperature
η Efciency
D Specic ow rate
NOx NOx class
9 If these plates or any other means of clearly identifying the
product are defaced, removed or lost, proper installation
and servicing may be rendered difcult.
1.6 System layout
GITRÈ LN
7
1
8
3
2
6
1
2
4
5
3
9
1 Burner
2 Boiler body
3 Control panel
4 Sensor socket
5 Lifting holes
6 Flue gas exhaust tting
7 Casing
8 Drain cock
9 Flue gas diaphragm (GITRÈ 5 LN only)

7
GENERAL INFORMATION
GITRÈ B/100 LN
1
15
16
2
3
11
12
3
4
19
18
17
8
7
6
5
9
11
10
12
8
6
5
1
4
13
14
1 Control panel
2 Storage cylinder drain cock
3 CH circuit drain cock
4 Automatic vent valve
5 Storage cylinder
6 Casing
7 Non-return valve
8 Boiler circulator
9 Boiler temperature sensor socket
10 Lifting holes
11 Burner
12 Boiler body
13 Flue gas diaphragm
14 Flue gas exhaust tting
15 Domestic cold water inlet
16 DHW circulation
17 Storage cylinder temperature sensor socket
18 DHW outlet
19 Magnesium anode

8
GENERAL INFORMATION
BURNER
3
11
9
5
6
2
7
8
10
1
4
1 Pump
2 Burner controller
3 Reset button with lockout indicator
4 Flange with seal
5 Air damper adjuster screw
6 Air intake
7 Oil pump pressure adjuster screw
8 Pressure gauge tting
9 Photoresistor
10 Combustion head
11 Motor
OIL PUMP
7
6
5
4
3
2
1
8
1 Suction port
2 Return
3 By-pass screw
4 Pressure gauge tting
5 Pressure adjuster screw
6 Vacuum gauge tting
7 Valve
8 Auxiliary pressure measurement tting

9
GENERAL INFORMATION
1.7 Technical specications
DESCRIPTION
GITRÈ LN
GITRÈ 4
LN
GITRÈ 5
LN
GITRÈ 6
LN GITRÈ 5 B/100 LN
Device type
Low temperature central
heating
Mixed low tem-
perature heating
B23-C13-C33-C63(*)
Fuel Heating fuel oil (Light oil)
Maximum rated heat input at furnace referred to HVC (LCV) 26,5
(25)
33,9
(32)
42,4
(40)
33,9
(32) kW
Useful (rated) heat output 24 31 38 31 kW
Maximum useful heat output P4 (60-80°C) 23,8 30,7 38,5 30,7 kW
30% heat output P1
with
return at
37°C
7,1 9,2 11,5 9,2 kW
Seasonal energy efciency in central heating mode B
Seasonal energy efciency in DHW mode - B
Seasonal energy efciency in central heating
mode ηs 86 87 %
Efciency at rated heat output in high tempera-
ture mode referred to HCV η4 (60-80°C) 89,8 90,6 90,7 90,6 %
Efciency at 30% rated heat output in low tem-
perature mode referred to HCV η1
with
return at
37°C
91,9 91,6 91,7 91,6 %
Energy efciency in DHW mode ηWH -73,0 %
Storage cylinder charging prole -XL
Heat loss in standby mode Pstby 60,1 60,1 58,6 60,1 W
Combustion efciency referred to LCV 96,4 96,8 96,6 96,8 %
Annual energy consumption QHE 80 102 128 102 GJ
Daily electrical energy consumption Qelec --- 0,105 kWh
Annual electrical energy consumption AEC --- 28,60 kWh
Daily fuel consumption Qfuel --- 27,26 kWh
Annual fuel consumption AFC --- 36,50 GJ
Noise level (sound power) LWA 59 dB(A)
Emissions at maximum heat input
NOx (referred
to HCV) <110 mg/kWh
CO2 12,5 %
CO w.a.
<<50 ppm
Flue
gas T
At Pn (60-
80°C) 97 93 91 93 °C
Smoke scale <0,5
Flue gas mass ow rate 9,6 12,3 16,1 12,3 g/s
Maximum working pressure 3bar
Safety thermostat trip temperature 110 °C
Maximum operating temperature 55-82 °C
Minimum return temperature 37 °C
Boiler water capacity 19 24 28 24 l
Turbulators 6n°
Power supply 230-50 V-Hz
Electric degree of protection X0D IP
Consumption at full load Elmax 187 185 240 185 W
Consumption at part load Elmin 56,1 55,5 72,0 55,5 W
Electrical consumption in standby mode P sb 12 W
LCV: Lower caloric value of fuel
HCV: Higher caloric value of fuel
Test conditions:
−Room temperature 22°C
−Atmospheric pressure 1018 mbar
(*) In conjunction with the kit available from the catalogue.
(*) C63 forbidden in Belgium.

10
GENERAL INFORMATION
STORAGE CYLINDER GITRÈ 5 B/100 LN
Type of storage cylinder Vitried steel
Storage cylinder layout Vertical
Heat exchanger layout Vertical
Maximum power absorbed 24,9 kW
DHW water temperature setting range 0-70 °C
Storage cylinder capacity 100 l
Coil water capacity 5 l
Coil heat exchange surface area 1,02 m2
Domestic hot water production (∆T 35°C) (*) 612 l/h
Water draw in 10 minutes with primary buffer tank
at:
48°C 170 l
60°C 230 l
Specic ow rate (EN 13203) 21 l/min
Replenishment time with ∆T 35°C) 10 min
Maximum operating pressure of storage cylinder 6bar
STORAGE CYLINDER PUMP
Electrical consumption 53 W
EEI Part 3 (**) ≤0,20
P L, Avg (***) ≤24 W
Minimum pressure at pump suction inlet 0,5 bar
(*) Inlet water temperature 10°C and average outlet water temperature 45°C with coil inlet temperature of 80°C
(**) Energy efciency rating according to regulations 641/2009-622/2012
(***)Approximate average annual electricity consumption according to regulations 641/2009-622/2012
1.7.1 Water-side pressure drop
GITRÈ LN boilers come without a pump. A pump must therefore be provided as part of the installation.
In order to choose a pump of the right size, bear in mind the boiler’s water-side pressure drop, as shown in the gure below.
0
5
10
15
20
25
30
35
40
45
50
Flow-rate [m³/h]
0,0 0,2 0,4 0,6 0,8 1,0 1,2 1,4 1,6 1,8 2,0 2,2 2,4 2,6 2,8 3,0 3,2 3,4 3,6 3,8 4,0
Pressure drop [mbar]
GITRÈ 4 LN
GITRÈ 5 LN -
5B/100 LN
GITRÈ 6 LN