Riello RS 28/M Quick start guide

Installation, use and maintenance instructions
2915800 (1) - 03/2022
LPG Kit
CODE MODEL
3010270 RS 28/M-/E-/EV
3010271 RS 38/M-/E-/EV
3010272 RS 50/M-/E-/EV
GB

Original instructions

General warnings
1 2915800
GB
1.1 Guarantee and responsibility
The rights to the guarantee and the responsibility will no longer be
valid in the event of damage to things or injury to people, if such
damage/injury was due to any of the following causes:
intervention of unqualified personnel;
carrying out of unauthorised modifications on the equipment;
powering of the burner with unsuitable fuels;
faults in the fuel supply system;
repairs and/or overhauls incorrectly carried out;
use of non-original components, including spare parts, kits,
accessories and optional;
force majeure.
The manufacturer furthermore declines any and every responsibil-
ity for the failure to observe the contents of this manual.
– Personnel must always use the personal protective equipment
envisaged by legislation and follow the indications given in this
manual.
– Personnel must observe all the danger and caution indications
shown on the machine.
– Personnel must not carry out, on their own initiative, operations
or interventions that are not within their province.
– Personnel must inform their superiors of every problem or dan-
gerous situation that may arise.
1.2 Installation safety notes
1 General warnings
DANGER
It is obligatory to carry out all installation, mainte-
nance and dismantling operations with the electric-
ity supply disconnected.
DANGER
Isolate the fuel supply.
WARNING
The installation must be carried out by qualified per-
sonnel, as indicated in this manual and in compli-
ance with the standards and legal requisites in
force.
CAUTION
After removing all the packaging, check the integrity
of the contents. If in doubt, do not use the spare
parts kit; contact the supplier.
Wait for the components in contact with heat sourc-
es to cool down completely.
After carrying out maintenance, cleaning or check-
ing operations, reassemble the cover and all the
safety and protection devices of the burner.

2915800 2
GB
LPG kit
2.1 Kit description
The kit allows the burners, to operate on LPG.
The kit is composed of:
Tab. A
2.2 Technical features
Tab. B
2.3 Conversion
Proceed as follows:
On the combustion head: replace the gas distributor 1) with
that one supplied for LPG 2).
2LPGkit
Description Quantity
Gas distributor 1
Disc 1
Self-adhesive label 1
Instructions 1
Before starting the kit installation operations, get a
suitable lifting system ready.
Be careful as some drops of fuel may leak out dur-
ing the kit installation phase.
WARNING
Apply the self-adhesive label near the burner data
plate.
Model RS 28 RS 38 RS 50
Thermal power MBtu/hr 358 - 1232 437 - 1665 549 - 1986
Fuel Commercial LPG GCV 26.47 kWh/Nm3 (C3H8= 93 - 94%) 2.55 MBtu/CU.FT.
Minimum gas pressure “WC 8.7 11.4 14.2
measured on the coupling, with 0 “WC resistance in the combustion-chamber and gas
with gross calorific value of 2.55 MBtu/CU.FT.
Maximum gas pressure “WC 142
DANGER
Disconnect the electrical supply from the burner by
means of the main system switch.
DANGER
Close the fuel interception tap.
Fig. 1
D2510

LPG kit
3 2915800
GB
2.4 Combustion head setting
2.5 Combustion chamber pressure
The pressure in the combustion chamber is the same as for natural
gas operation.
2.6 Gas pressure - output
Pressure measured at the coupling with combustion chamber at
0 “WC (Tab. C).
If the combustion chamber is pressurized, the required gas-pres-
sure is that shown on the table plus the pressurization value.
Tab. C
2.7 Gas train
The gas trains for LPG operation are the same as those used for
natural gas.
2.8 Electrical wiring
For the electrical wiring to the burner, refer to the burner instruction
manual.
Air setting: screw 1)(Fig. 2 - A): unchanged
Gas setting: disc 1) (Fig. 2 - B): always set on 0.
WARNING
For pressure levels different from those indicated
above, please contact the Technical Office.
Fig. 2
D1327
A B
Mbtu/hr (GCV) (“WC)
RS 28
500 3.6
600 4.4
700 5.2
800 6.0
900 6.8
1000 7.6
1100 8.4
1200 9.2
RS 38
800 4.8
1000 6.4
1200 8.0
1300 8.8
1400 9.6
1500 10.4
1600 11.2
1700 12.0
RS 50
1000 5.3
1200 7.1
1400 8.9
1500 9.8
1600 10.7
1700 11.6
1800 12.5
1900 13.4

Subject to modifications