11
INSTALLATION
INSTALLATION
2.4
Place of installation
R
RTQ
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 sufficient space around it
to access all safety and control devices and to permit easy
maintenance.
9
If the specific weight of the gas supply to the burner is
greater than the specific weight of air, install all electrical
parts at least 500 mm above floor level.
0
Do not install the boiler outdoors. It is not designed to work
outdoors and is not fitted 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
qualified 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 flow rate, head and direction of flow of the
pumps are suitable and correct;
− make sure that the circuit has been flushed 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
R
RTQ
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 fittings are as specified in the following table.
9
Allow for the dimensions of the control panel that needs to be installed on top of the boiler.
A
B
70
1
4
3
C
2
5
6
D
F
E
G
DESCRIPTION
RTQ
953
1074
1308
1500
1700
2000
2336
1
Central heating flow *
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 fitting
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
A
1250
1300
1600
1650
1650
1650
1910
mm
B
505
580
655
700
700
735
745
mm
C
105
105
115
125
125
142
122
mm
D
300
250
650
380
380
280
510
mm
E
110
110
110
115
115
115
120
mm
F
95
95
115
120
120
117
155
mm
G
180
125
170
180
180
215
335
mm
(*)
All flanged connections are PN6 according to EN 1092-1.
