Riello RTQ 953 Owner's manual

cod. 20017904 rev. 22 12/2017
RTQ
EN INSTALLATION, OPERATION, MAINTENANCE AND SYSTEM MANAGEMENT MANUAL

2
RANGE
MODEL CODE
RTQ 953 20008950
RTQ 1074 20011304
RTQ 1308 20011317
RTQ 1500 20018769
RTQ 1700 20011305
RTQ 2000 20016243
RTQ 2336 20017225
ACCESSORIES
For a complete list of accessories and details of their compatibil-
ity, refer to the Catalogue.
ENGLISH
Dear Customer,
Thank you for choosing a Rboiler. You have purchased a
modern, high efciency, quality product that is designed to
give dependable and safe service and to provide comfort in
the home for many years to come. Arrange for your boiler to be
serviced regularly by an authorised Technical Assistance Service
R. Their personnel are specially trained to keep your boiler
efcient and cheap to run. They also stock any original spare
parts that might be required.
This instruction manual contains important instructions and
precautions that must be observed to ensure the efcient func-
tioning of your RTQ boiler.
Please accept our renewed thanks for your purchase
Riello S.p.A.
CONFORMITY
RRTQ boilers conform to:
−Directive 92/42/EEC on efciency requirements and Annex
E and Pres. Republic Decree n. 412, 26 August 1993 (**)
When used in conjunction with a CE marked jet burner, they also
satisfy the requirements:
−Gas Appliances Directive 2009/142/EC (until 20 April 2018 )
and Regulation (EU) 2016/426 (from 21 April 2018)
−applicable sections of the Electromagnetic Compatibility
Directive 2014/30/EU
−applicable sections of the Low Voltage Directive 2014/35/
EU

3
This manual, Code 20017904 - Rev. 22 (12/2017)
comprises 28 pages.
Contents
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 .....................4
1.4 Control panels................................5
1.5 Recommended burners ........................6
1.6 Identication ................................8
1.7 Technical specications.........................8
2 INSTALLATION ......................................9
2.1 Unpacking the product .........................9
2.2 Overall dimensions and weights ................. 10
2.3 Handling................................... 10
2.4 Place of installation ...........................11
2.6 Water connections ............................11
2.5 Installation in older systems and systems requiring
modernisation ...............................11
2.7 Anti-condensate pump........................ 12
2.8 Hoses should also be xed to the oor and suitably
protected whenever possible ................... 13
2.9 Door hinges ................................ 13
2.10 Changing the direction of door opening ........... 14
2.11 Fitting the insulation and turbulators ............. 16
2.12 Earth connection ............................ 18
2.13 Fitting the casing panels ....................... 18
2.14 Preparing for initial startup ..................... 19
2.15 Initial startup ............................... 19
2.16 Checks during and after initial start-up ...........20
2.17 Maintenance................................ 21
2.18 Cleaning the boiler ........................... 22
2.19 Troubleshooting .............................23
3 USE................................................24
3.1 Putting into service ...........................24
3.2 Temporary shutdown .........................25
3.3 Preparing for extended periods of disuse ..........25
3.4 Cleaning ...................................25
3.5 Maintenance................................26
3.6 Useful information ........................... 27

4
GENERAL INFORMATION
GENERAL INFORMATION
1 GENERAL INFORMATION
1.1 General Safety Information
9 The boiler is delivered in separate crates. Check that it is
complete, undamaged and as ordered as soon as you re-
ceive it. Report any discrepancies or damage to the dealer
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 If you notice any water leaking from the boiler, disconnect it
immediately from the mains electricity supply, shut off the
water supply, and notify your local R’s Technical Assis-
tance Service or a qualied heating engineer immediately.
9 Periodically check that operating pressure in the water cir-
cuit is over 1 bar but below the maximum limit specied for
the boiler. If this is not the case, contact Technical Assistance
Service R or a professionally qualied heating engineer.
9 If the boiler is not going to be used for an extended pe-
riod of time, contact R’s Technical Assistance Service or
a qualied heating engineer to have it prepared for shut-
down as follows
−Switch the boiler OFF at the control panel
−Turn the main system switch "off"
−Close the fuel cock and heating circuit water cock
−Drain the central heating circuit if there is any risk of
freezing.
9 The boiler must be serviced at least once a year.
9 This instruction manual is an integral part of the boiler. It
must be kept safe and must ALWAYS accompany the boiler,
even if it is sold to another owner or transferred to another
user or to another installation. If you damage or lose this
manual, order a replacement immediately from your local
R’s Technical Assistance Service.
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 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
−Report the fault immediately to the R's Technical As-
sistance Service or a professionally qualied heating en-
gineer.
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 main
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 Do not plug or block the condensate drain outlet.
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 designed to
work indoors.
0 Do not switch the boiler off if outdoor temperature drops
below ZERO (risk of freezing).
0 Do not store containers of ammable substances in the
room where the boiler is installed.
0 Do not allow children or persons with reduced physical,
sensorial or mental abilities or with insufcient experience
and knowledge to operate this system without proper su-
pervision from the person responsible for its safe use.
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.
1.3 Description of the appliance
RRTQ steel boilers are high efciency boilers with horizon-
tal, ame reversal combustion chambers and concentrically
arranged ue gas pipes. They are designed for central heating
and, when used in conjunction with a suitable storage cylinder,
for domestic hot water production too.
Because they operate at low pressure, they provide a gradual
heating action without thermal shock.
The most important technical features of these boilers are:
−The combustion chamber and heat exchange system are
specially designed and shaped to achieve the best pos-
sible volume ratio;
−Only top quality materials are used to ensure a long
working life.
Stainless steel turbulators inside the ue gas pipes establish an
ideal pressure inside the combustion chamber and an ideal ue
gas temperature. Evenly distributed thermal load optimises the
efciency of the boiler-burner system.
The boiler body is thoroughly insulated with a layer of high den-
sity glass wool.
The boiler’s front door and the ue gas box can be opened com-
pletely to facilitate the inspection, maintenance and cleaning of
internal parts and to speed up servicing in general.
The front door can open in either direction, even without re-
moving the burner.
General information

5
GENERAL INFORMATION
GENERAL INFORMATION
0
30
60
90
3
2
1
12
46785
13
14
10
9
11
15
1 Burner
2 Flame inspection window with pressure meas-
urement / cooling valve
3 Door
4 Casing
5 Central heating return
6 Safety device tting
7 Instrument bulb/sensor sockets
8 Central heating ow
9 Flue gas pipes
10 Turbulators
11 Combustion chamber
12 Flue gas exhaust
13 Flue gas box
14 Inspection window
15 Condensate outlet
1.4 Control panels
The Rcontrol panels that can be used with RRTQ steel
boilers are listed below. These control panels cater for all the
needs of the heating system and of all the devices installed in it.
TECH CLIMA TOP for central heating (1 direct zone and 2 mixed
zones) and domestic hot water production with a single stage,
two stage, or modulating burner. Also for controlling solar heat-
ing system and cascaded boiler systems.
TECH PRIME for central heating only (1 direct zone) with a single
or two stage burner.
TECH CLIMA COMFORT for central heating (1 direct zone and 1
mixed zone) and domestic hot water production with a single
stage burner. Also for controlling solar heating system and cas-
caded boiler systems.
TECH PRIME ACS for central heating (1 direct zone) and domestic
hot water production with a single or two stage burner.
0 When a TECH CLIMA TOP or CLIMA COMFORT control panel is in-
stalled, the boiler return (cold) line must be equipped with
a temperature sensor socket. See the Catalogue for the nec-
essary accessory part numbers.

6
GENERAL INFORMATION
GENERAL INFORMATION
1.5 Recommended burners
The burners recommended to obtain the best possible perfor-
mance from RRTQ boilers are:
BURNERS RTQ Long
head *
MODEL CODE 953 1074 1308 1500 1700 2000 2336
GAS
RS 100 t.l. 3785303 x x
RS 130 t.l. 3785503 x
RS 190 t.l. 20030087 x x o
RS 100/M t.l. 3789711 x x
RS 130/M t.l. 3789811 x
RS 190/M t.c. 3787623 x x o3010443
RS 250/M t.l. 3788411 x x
MIXED OIL/GAS
RLS 100 3485201 x x 3010346
RLS 190/M MZ t.c. 3488110 xxx 3010440
RLS 250/M MZ t.c. 3482810 x20029376
GI/EMME 3000 t.l. 3488758 x
RLS 120 M MX t.l. 3898111 x
RLS 160 M MX t.l. 3898211 xxx
OIL
RL 100 t.l. 3475233 x x
RL 130 t.l. 3475433 x
RL 190 t.c. 3475613 xxx 3010444
RL 250 t.c. 3470010 x3010422
RL 100/M t.l. 3477213 x x
RL 130/M t.l. 3477413 x
RL 190/M 3477811 xxx
NAPHTHA
P100/N ECO t.l. 3436024 x x
P140T/N ECO t.l. 3436922 x x
P200T/N ECO t.l. 3437822 xxx
P140 PN t.l. 3436875 x x
P200 PN t.l. 3437775 xxx
MIXED NAPHTHA/GAS
NM 1400 t.l. 3486702 x x
NM 2000 t.l. 3487802 x x
NM 3000 t.l. 3488802 x x
(*) Long head REQUIRED.
(o) Up to 2050 kW.
9 Burner/boiler combinations have been calculated on the
basis of the burner working at 3% O2.
9 See the instruction manual provided with the burner for
further information on, burner installation, electrical con-
nections, burner adjustments.
9 To assemble/disassemble the burners equipped with re-
circulation tube, it might be necessary to remove the latter
before carrying out such operations (strictly comply with the
use and maintenance manual of the burner).
9 Long heads and burner plates are required for the correct
installation and coupling of the burners.
9 If a two stage burner is installed, 1st stage heat input must
not be less than 70% of total heat input. With liquid fuel
burners equipped with 2 nozzles, it is therefore important
to choose the correct rst stage nozzle.
9 In Italy, the Decree of the President of the Council of Minis-
ters of the 2nd October 1995 requires that heating systems
with heating power of less than 3 MW use fuel oil with a
sulphur content of less than 0.3 % by weight.
9 Naphtha can only be used in models from 1308 on. With
models 953 to 1074 naphtha fuel can only be used if the
insulation on the boiler door is rst protected with a coat
of water soluble, aluminium and silicon oxide based paint.
When running on naphtha, reduce the boiler’s maximum
rated heat output by 20%.

7
GENERAL INFORMATION
GENERAL INFORMATION
IMPORTANT NOTES FOR BURNER INSTALLATION
Before xing the burner to the boiler, make sure that:
−The door opens the right way (see the relevant sections
for details on how to reverse the door)
−The length (L) of the burner xing bolts is less than (S),
i.e. the total depth of the seal, plates and washer. Longer
bolts can cause the door to warp, compromising its
ability to seal the boiler hermetically and permitting
the release of combustion fumes.
To ensure correct burner installation, also refer to the burner’s
own manual.
L < S
S
L
If you are installing a new boiler but re-using an old burner,
always perform the following checks:
−Make sure that the performance of the old burner is ad-
equate for the requirements of the boiler
−Make sure that the length and diameter of the burner
nozzle are as specied in the following table.
9 When you nish installing the burner in the boiler, ll the
gap between the burner’s blast tube and the refractory ma-
terial in the door with the ceramic insulation (A) supplied
with the boiler.
9 Blast tubes must not exceed the specied lengths by more
than 20%.
BURNER PLATE
RRTQ boilers are equipped with burner plates with no holes.
These plates accept the recommended burners. The burner
plates must be drilled on installation according to the burner
xing holes.
A
Ø
L
RTQ
953
1074 1308 1500 1700 2000 2336
Burner head
L min. (mm) 280 320 340 365 365 375 375
Hole in door
Ø (mm) 205 260 280 300 300 350 350
0 Do not re-use old burners if their blast tube lengths are be-
low those specied in the table.

8
GENERAL INFORMATION
GENERAL INFORMATION
1.6 Identication
The products are identied by:
Serial number plate
This is located on the boiler body and species the serial num-
ber, model, and furnace power.
Data plate
This lists the technical specications and performance of the
product. It comes inside the documentation envelope. On com-
pletion of the installation you MUST apply it in a clearly visible
position at the top of one of the side panels. If you damage
or lose this label, order a replacement immediately from R's
Technical Assistance Service.
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.
CALDAIA IN ACCIAIO
Modello Matricola
Codice
Code
Anno fabbricazione Tipo
Type
Portata term. Pot. utile
Pres. Max esercizio
Aliment. elettrica
kW
T°Max ammessa
Contenuto acqua
°C
l
Combustibile utilizzato : TUTTI I GAS / GASOLIO
max (Hi)
Qmax
60°/80°
P
PMS
Pressione focolare
kW
pn
PER CATEGORIA COMBUSTIBILE
E PAESI DI DESTINAZIONE VEDI ETICHETTA BRUCIATORE
Portata term. min (Hi)
QkW Pot. utile kW
Tmax
m²
Superficie di scambio
mbar
RIELLO S.p.A.
Via Ing.Pilade Riello 7
37045 Legnago (VR) - ITALY
066940IE
STEEL BOILER
Model Serial number
Codice PIN
PIN number
Year of manufacture
Max. heat input
Min. heat input
Furnace pressure
Max. operating
pressure
T°Max permitted
Max. useful
heat output
60°/80°
P
min
heat output
Min. useful
Water capacity
Heat exchange
surface area
VEDI QUADRO ELETTRICO - SEE ELECTRIC CONTROL PANEL
Collegamento di terra obbligatorio - Obligatory ground connection
Fuel : GAS / OIL
FOR FUEL TYPE COUNTRY
OF DESTINATION SEE BURNER DATA PLATE
Power supply
Pa
k
Matricola
Modello
Pres. Max esercizio
Portata term. Qmax (Hi)
PMS
kW
RIELLO S.p.A.
Via Ing.Pilade Riello 7
37045 Legnago (VR) - ITALY
Serial no.
Model
Max.operating press.
Max. heat inpt
COMBUSTIBILE UTILIZZATO / FUEL: GAS, GASOLIO / GAS, OIL
Pa
k
23270000581
WEEK OF
MANUFACTURE
1.7 Technical specications
DESCRIPTION RTQ
953 1074 1308 1500 1700 2000 2336
Fuel Gas / Oil
Rated heat input min 896 1020 1095 1400 1594 1800 2100 kW
max 990 1150 1400 1606 1820 2140 2500 kW
Rated useful heat output Pn min 831 951 1021 1305 1486 1678 1957 kW
max 920 1074 1308 1500 1700 2000 2336 kW
Useful efciency at min. Pn min 92,8 93,2 93,2 93,2 93,2 93,2 93,2 %
max 92,9 93,4 93,4 93,4 93,4 93,4 93,4 %
Useful eff. at 30% max. Pn 93 93,3 93,3 93,3 93,3 93,3 93,3 %
Constant pressure drop < 1
Flue gas temperature (∆T) 170÷180 °C
Flue gas mass ow rate 0,420 0,497 0,624 0,691 0,797 0,912 1,102 kg/sec
Furnace pressure 4,6 4,9 4,9 5,7 7,2 4,5 5,1 mbar
Furnace volume 649 912,1 1097,8 1479,4 1479,7 1569,7 2066,2 dm3
Tot. volume of ue gas side 989,5 1388,9 1727,9 2162,7 2162,7 2531,6 3243,5 dm3
Total surface area for heat exchange 24,42 32,87 37,28 42,24 42,24 51,37 67,94 m2
Volumetric heat load 1525 1261 1276 1086 1231 1364 1210 kW/m3
Specic heat load 37,7 32,7 35,1 35,5 40,2 38,9 34,4 kW/m2
Max. operating pressure 6bar
Max. admissible temp. 110 °C
Max. operating temp. 95 °C
Min. admissible water return temp. 55 °C
Pressure drops ∆T 10°C 175 108 210 292 310 110 155 mbar
∆T 20°C 38 23,4 52 84 105 28 40 mbar
Water capacity 657 1080 1350 1480 1480 1716 2000 liters
9 The stack must guarantee the minimum draught specied
by applicable technical standards, assuming zero pressure
at the connection to the ue gas exhaust.
9 Values obtained with RRL and GULLIVER RG burners with
CO2 = 12,5%; RS and GULLIVER BS burners with CO2 = 9,7%.

9
INSTALLATION
INSTALLATION
2 INSTALLATION
2.1 Unpacking the product
RRTQ steel boilers come in 2 separate crates:
1 BOILER BODY CRATE to which is attached the documentation
envelope (A) containing:
−Instruction manual;
−Data label (to be applied to the casing on completion of
the installation);
−Certicate of Warranty and water test certicate;
−Bar code labels;
−Spare parts catalogue.
A
9 The following material, to be tted by the installer, is locat-
ed inside the combustion chamber:
−turbulators and turbulator xing clips (for installation in
the ue gas pipes);
−water connection anges;
−boiler body insulation and fasteners.
For tting instructions, see the section entitled "Fitting the
insulation and turbulators" on page 16.
MATERIAL
SUPPLIED
9 The instruction manual is an integral part of the boiler. Once
located, read it thoroughly and keep it safe.
2 THE CASING PANELS complete with assembly accessories (2
packs).
IMPORTANT
For the boiler to function correctly, it must be connected to a
RTECH control panel and dedicated control accessories.
Installation

10
INSTALLATION
INSTALLATION
2.2 Overall dimensions and weights
C
A
A1
B
B1 E
D
70
70
161
DESCRIPTION RTQ
953 1074 1308 1500 1700 2000 2336
A Width 1220 1360 1450 1535 1535 1610 1715 mm
A1 Base width 1170 1310 1400 1485 1485 1555 1660 mm
B Depth 2310 2765 2895 3055 3055 3135 3415 mm
B1 Base depth 1960 2375 2470 2580 2580 2630 2890 mm
C Height 1280 1430 1530 1610 1610 1680 1850 mm
D Burner height 690 755 820 865 865 900 1000 mm
E Door depth 205 245 250 290 290 300 300 mm
Weight of boiler 1182 1807 2340 2730 2730 3320 4205 kg
Weight of casing 55 92 100 111 111 123 144 kg
2.3 Handling
RRTQ steel boilers are tted with lifting attachments. Take
great care when moving them and only use lifting equipment of
adequate capacity.
Remove the xing screws and remove the wooden pallet before
positioning the boiler.
9 Wear suitable personal protective equipment and use suit-
able safety devices.

11
INSTALLATION
INSTALLATION
2.4 Place of installation
RRTQ steel boilers must be installed in a dedicated boiler
room, with adequately sized vents, in compliance with applica-
ble laws and standards.
If at all possible, the boiler should be installed on a raised base
to prevent the burner fan sucking up dust.
9 When installing the boiler, allow sufcient space around it
to access all safety and control devices and to permit easy
maintenance.
9 If the specic weight of the gas supply to the burner is
greater than the specic weight of air, install all electrical
parts at least 500 mm above oor level.
0 Do not install the boiler outdoors. It is not designed to work
outdoors and is not tted with the necessary automatic an-
ti-frost systems to do so.
2.5 Installation in older systems and systems
requiring modernisation
When installing these boilers in old systems or systems requiring
modernisation, always perform the following checks:
−make sure that the stack is able to withstand the tempera-
ture of the combustion gases and that it has been designed
and made in compliance with applicable standards. The
stack must also be as straight as possible, sealed, insulated
and not blocked or choked;
−make sure that the electrical system has been installed by a
qualied electrician in compliance with applicable stand-
ards;
−make sure that the oil feed line and any oil storage tank are
made and installed in compliance with applicable stand-
ards;
−make sure that the expansion vessels are big enough to
contain the volume generated by thermal expansion;
−make sure that ow rate, head and direction of ow of the
pumps are suitable and correct;
−make sure that the circuit has been ushed out to remove
all sludge and lime scale, and has been vented and seal
tested.
−make sure that a suitable water treatment system is installed
if the quality of the supply/recirculation water so demands.
2.6 Water connections
RRTQ boilers are designed and made for use in central heating installations, but can also be used for domestic hot water pro-
duction if connected to a suitable storage cylinder. Water ttings are as specied in the following table.
9 Allow for the dimensions of the control panel that needs to be installed on top of the boiler.
AB70
1 4
3
C
2
5 6
D
F
E
G
DESCRIPTION RTQ
953 1074 1308 1500 1700 2000 2336
1 Central heating ow * DN100 DN100 DN125 DN125 DN125 DN150 DN175 Ø
2 Instrument bulb / sensor socket G1/2" G1/2" G1/2" G1/2" G1/2" G1/2" G1/2" Ø
3 Safety device tting G1"1/2 G2"1/2 G2"1/2 DN 80 DN 80 DN100 DN100 Ø
4 Central heating return * DN100 DN100 DN125 DN125 DN125 DN150 DN175 Ø
5 Condensate drain G1" G1" G1" G1" G1" G1" G1" Ø
6 Boiler drain G1"1/4 G1"1/4 G1"1/4 G1"1/2 G1"1/2 G1"1/2 G1"1/2 Ø
A1250 1300 1600 1650 1650 1650 1910 mm
B505 580 655 700 700 735 745 mm
C105 105 115 125 125 142 122 mm
D300 250 650 380 380 280 510 mm
E110 110 110 115 115 115 120 mm
F95 95 115 120 120 117 155 mm
G180 125 170 180 180 215 335 mm
(*) All anged connections are PN6 according to EN 1092-1.

12
INSTALLATION
INSTALLATION
Below is given the hydraulic diagram:
Central heating and domestic hot water production
3
2 2
3
33
4
5
3
8
10 15
10
13
14
12
1
EAF
EAF
15
6
33
3 3
11
67
17 5
33
3
5
3
4
3
5
3
4
HOT WATER
OUTLETS
EMPTY EMPTY
SYSTEM
DELIVERY
SYSTEM
RETURN
1 Boiler
2 Central heating system manifolds
3 Disconnect valves
4 System pumps
5 Non-return valves
6 Automatic vent valve
7 Boiler safety valve
8 Boiler drain cock
9 Storage cylinder safety valve
10 System lling cock
11 CH expansion vessel
12 R7200 storage cylinder
13 Storage cylinder drain cock
14 DHW expansion vessel
15 Water softener lter
16 Pressure reducer
17 Anti-condensate pump
EAF Domestic cold water inlet
9 The choice of system components and the method of their
installation are left up to the heating engineer installing the
system. Installers must use their expertise to ensure proper
installation and functioning in conformity to all applicable
legislation.
9 Circuits lled with anti-freeze must be tted with water dis-
connectors.
9 If needed, water supplies and recovery circuits must be
conditioned by suitable treatment systems. See the table
alongside for reference values.
REFERENCE VALUES
pH 6-8
Electrical conductivity less than 200 μS/cm (25°C)
Chlorine ions less than 50 ppm
Sulphuric acid ions less than 50 ppm
Total iron less than 0.3 ppm
Alkalinity M less than 50 ppm
Total hardness less than 35°F
Sulphur ions none
Ammonia ions none
Silicon ions less than 30 ppm
2.7 Anti-condensate pump
An anti-condensate pump operates during periods of no heat
request to avoid damage until the boiler returns to a stable op-
erating temperature. While the system is operating, this pump
must guarantee a ow rate between 20 and 30% maximum
ow to ensure a water return temperature no lower than 55 °C.
Pump shutdown must also be delayed for at least 3 minutes at
the beginning of extended periods of boiler shutdown (over-
night or weekend shutdown etc.).
9 A sensor socket must be positioned at a distance of 3 to 5
times the diameter of the water return pipe, upstream from
the water tting, to measure effective water return temper-
ature and control the anti-condensate pump or the tem-
perature controller stabilisation function.
9 Any temperature controllers installed remotely from the
control panel must be compatible with the system’s electri-
cal connections and functioning logic.
D
3÷5 D

13
INSTALLATION
INSTALLATION
2.8 Hoses should also be xed to the oor and
suitably protected whenever possible
The ue gas exhaust and stack connection must be made in
compliance with applicable laws and standards, using heat re-
sistant, condensate resistant and stress resistant rigid pipe and
sealed joints.
H
0
30
60
90
Ø
RTQ
953 1074 1308 1500 1700
2000 2336
Ø (mm) 300 350 400 450 450 500 500
H (mm) 690 715 820 865 865 900 1000
9 The stack must guarantee the minimum draught specied
by applicable technical standards, assuming zero pressure
at the connection to the ue gas exhaust. Draught at the
stack must not exceed 0.2 mbar. Fit a draught limiter if
draught exceeds this value.
9 Inadequate or badly dimensioned stacks and exhausts can
increase combustion noise, cause condensation problems
and affect combustion parameters.
9 Uninsulated ues are potentially dangerous and can cause
burns.
9 Joints must be sealed using materials capable of withstand-
ing temperatures of at least 200°C (e.g. ller, mastic or sili-
cone based sealant).
9 The connection between the horizontal section of ue and
the vertical stack must be either straight or at an angle of no
more than 45°.
9 If more than one boiler is installed in the same utility room,
separate ues must be provided for each boiler. If this is not
possible, the burners should denitely be equipped with
automatic closing of the air damper.
2.9 Door hinges
Boilers are tted with three door hinge points in the factory.
The doors are initially tted to open to the right. If you need to
change the door to open to the left, make the necessary modi-
cations before performing any tests that require the boiler door
to be opened. Proceed as instructed below to change the direc-
tion of door opening.
9 Once you have decided on the direction of door opening
and the door opens successfully, remove the unused hinge
assembly B.
Axis of door
rotation
A
A
B
1
2
3

14
INSTALLATION
INSTALLATION
2.10 Changing the direction of door opening
9 Perform this operation before starting the boiler up for the
rst time and before opening the door.
9 If the door is not properly supported on its hinges, equip-
ment capable of supporting its entire weight must be used
to move it (see the table on page 10) and using suitable
safety equipment.
If you wish to modify the door to open to the left, i.e. with the
hinges on the left, proceed as follows:
9 Make sure that the main door xing bolts (1) are securely
tightened;
−remove the top safety bolts (2) and the door stop bracket
(3);
−remove the bottom safety bolts (4) and the door stop
bracket (5);
1
2
4
5
3
1
−insert a spanner through the slot in the side of the top
door mounting bracket and hold the bushing (8) steady;
−unscrew the top bolt (6), then remove the bushing (8)
and washer (7);
6
8
7
−t the bushing (8), bolt (6) and washer (7) to the opposite
side of the door.
1
1
1
1
1
1
1
1
6
8
7

15
INSTALLATION
INSTALLATION
9 If it proves difcult to t the washer (7) or screw the bolt (6)
into the bush (8) because the door is not accurately aligned,
attach a hoist of adequate lifting capacity to the door (see
the weights and dimensions table), slightly loosen the x-
ing bolts (1) and lift the door just enough to t the washer
(7) or align the hole in the door with the hole in the hinge.
Once the bolt (6) has engaged the bush, re-tighten the
door xing bolts (1).
−Fit the top door stop bracket (3) to the opposite side of
the door and x it in place with the safety bolts (2);
−t the bottom door stop bracket (5) to the opposite side
of the door and x it in place with the safety bolts (4).
2
3
4
5
1
1
1
1
1
1
1
1
9 Make sure that the safety bolts (2 and 4) are securely tight-
ened before attempting to open the door.
−Completely unscrew the main xing bolts (1) and open
the door (these bolts are captive in the door and cannot
be removed);
−remove the spare hinge assembly ‘B’ [bolt (9), bushing
(10), and washer (11)] opposite the hinged side of the
door.
9
11
10
B

16
INSTALLATION
INSTALLATION
2.11 Fitting the insulation and turbulators
Open the door and remove the insulation.
Fit the insulation over the rear of the combustion chamber rst,
wrapping it around as shown in the gure.
Then t the insulation over the front.

17
INSTALLATION
INSTALLATION
Hold the insulation in place with the clips provided. Fit the xing clips on the turbulators and push the turbulators
into the ue gas pipes until the clips make contact.

18
INSTALLATION
INSTALLATION
2.12 Earth connection
A terminal is provided on the front boiler head to connect the
boiler body to an efcient earth system.
Proceed as follows.
−Unscrew the nut and washer (1) from the earth terminal;
−Attach the earth cable’s eye connector (2) to the terminal
(make sure that the cable is of adequate size and com-
plies with legislation in the country of installation);
−Fit the nut and washer (1) to the earth terminal and tight-
en the nut;
−Connect the other end of the cable to the system’s earth
bar.
(*) (**)
1
2
1
(**) M6x30 brass
9 Another hole (*) in the left side of the boiler head can also
be used to earth the appliance. If you wish to use this hole
for the earth connection, remove the terminal ttings from
the right of the head and move them to the left earthing
point.
2.13 Fitting the casing panels
−Engage the bottoms of the rear side panels (1) and front
side panels (2) in the bottom rails (3) then hook their top
lips over the top rails (4), running between the front and
rear heads;
−secure the side panels in place with the top cross beam
(5), and the screws provided;
−t your chosen control panel on the top panel (6), as in-
structed in the control panel’s own instruction manual;
−route the electrical cables and insert the bulbs/sensors
in their sockets;
−t the cable grommets provided into their seats in the
panels;
−t, in this order, the rear top panel (7) and (8) and the
central panel (9), to close the top of the boiler.
4
1
2
3
2
1
7
5
8
6
9
(**)
(**)
(**) RTQ 1074÷2336
9 Refer to the instruction manuals your chosen control panel
and burner.

19
INSTALLATION
INSTALLATION
2.14 Preparing for initial startup
It is essential to perform the following checks before starting up
or testing the functioning of your RRTQ boiler. In particular,
check that:
−the protective cardboard sheet (1) has been removed
from the ceramic bre;
1
−the turbulators (2) are correctly positioned inside the heat
exchange tubes and the clips (3) are resting against the
wall (4) of the heat exchanger;
2
3
4
−the water and gas cocks are open;
−there is an adequate fuel supply;
−the expansion vessel is properly charged;
−the working pressure in the water circuit is over 1 bar but
below the maximum limit specied for the boiler;
−the water circuits have been properly bled;
−the mains power connections to the boiler and its ac-
cessories (burner, pump, control panel, thermostats, etc.)
have been properly made.
9 The phase-neutral polarity has been respected.
9 A ground (earth) connection is obligatory.
2.15 Initial startup
Once you have completed all the preparatory steps, proceed as
follows to start up the boiler for the rst time:
−turn the system’s main power switch ON;
−if the system is equipped with a temperature controller or
timer thermostat, make sure that it is switched on;

20
INSTALLATION
INSTALLATION
−turn the control panel power switch ON and make sure
that the green power indicator lights;
20
40
60
80
100
0120
20
40
60
80
100
0120
CLIMA TOP / COMFORT PRIME / ACS
−make the necessary settings as instructed in the instruc-
tion manual for your control panel;
20
40
60
80
100
0120
CLIMA TOP / COMFORT PRIME / ACS
−adjust the timer thermostat/s or temperature controller
to the desired temperature (~20°C);
The burner should now ignite and remain in operation until the
set temperature is reached.
If any ignition faults or malfunctions occur, the burner performs
a “LOCKOUT SHUTDOWN”. This is shown by the red button light on
the burner and by the warning light on the control panel.
20
40
60
80
100
0120
CLIMA TOP / COMFORT PRIME / ACS
9 If a “LOCKOUT SHUTDOWN” occurs, wait about 30 seconds be-
fore resetting the burner.
To reset the burner, press the red button light on the burner and
wait until the ame ignites.
This operation can be repeated 2 or 3 times at the most. If the
problem still persists after that, check:
−all checks listed in the burner's own instruction manual;
−all steps listed in the ‘Preparing for Initial Start-up’ sec-
tion;
−all the electrical connections shown on the control panel
wiring diagrams.
If the problem persists, check that the safety thermostat has not
tripped.
9 If the safety thermostat trips, the boiler shuts down and a
warning is displayed on the control panel (if present).
Proceed as follows to reset the safety thermostat.
−Wait until boiler temperature falls below 80°C.
−Remove the safety thermostat cover.
−Press the manual reset button.
−Wait for the complete ignition cycle to be repeated and
for the ame to ignite.
20
40
60
80
100
0120
20
40
60
80
100
0120
CLIMA TOP / COMFORT PRIME / ACS
2.16 Checks during and after initial start-up
Once the boiler has started up, make sure that it shuts down
and re-starts properly when the following actions are taken:
−the boiler thermostat setting is changed
20
40
60
80
100
0120
CLIMA TOP / COMFORT PRIME / ACS
−power to the control panel is switched off and on again
−the room thermostat or timer thermostat is adjusted.
Check that there are no leaks from around the door seal. If there
is any leakage of combustion gases, adjust the door as instruct-
ed on page 22.
Make sure that all the pumps in the system are free and rotate
in the right direction.