RIELLO R 280 NA LPG Kit Instruction Manual

RIELLO R 280 NA LPG Kit Instruction Manual

General warnings

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 responsibility 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 dangerous situation that may arise.

DANGER
it is obligatory to carry out all installation, maintenance and dismantling operations with the electricity supply disconnected.

DANGER
Isolate the fuel supply.

WARNING
The installation must be carried out by qualified personnel, as indicated in this manual and in compliance 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 sources to cool down completely.

After carrying out maintenance, cleaning or checking operations, reassemble the cover and all the safety and protection devices of the burner.

Kit for conversion of combustion head

Kit description

The LPG kit allows the burners fitted for burning natural gas. to operate on LPG. The kit is composed of:

Before starting the kit installation operations, get a suitable lifting system ready.

Be careful as some drops of fuel may leak out during the kit installation phase.

Technical features

Model| R 280 NA| R 310 NA| R 410 NA| R 510 NA| R 610 NA
---|---|---|---|---|---
Thermal power| [MBtu/hr]| 2600 – 10500| 3500 – 13600| 4000 – 16100| 5000 – 19200| 8590 – 23310
Fuel| Commercial LPGGCV 26.47 kWh/Nm3 (C3H8 = 93 – 94%) 2.55 MBtu/CU.FT.

Conversion

DANGER
Disconnect the electrical supply from the burner by means of the main system switch.

DANGER
Close the fuel interception tap.

Proceed as follows:

R 280 NA Model (Fig. 1)

• place the stainless steel cylinder 1) outside the spray nozzle 2);
• replace the following material with the standard equipment supplied:
  • 6 gas nozzles 3);
  • the outer gas tubes 4).

R 310 NA Model (Fig. 2)

• place the stainless steel cylinder 1)outside the spray nozzle 2);
• replace the following material with the standard equipment supplied:
  • gas nozzles 3);
  • plugs 4);
  • the outer gas tubes 5) (five pieces) and 6) gas tubes (three pieces)

R 410 – R 510 NA Models (Fig. 3)

• replace the following material with the standard equipment supplied:
  • the outer gas tubes 1) (two pieces).

R 610 NA Model (Fig. 4)

• place the stainless steel cylinder 1) outside the spray nozzle 2);
• replace the following material with the standard equipmentsupplied:
  • gas nozzles 3) (two holes remain free);
  • the outer gas tubes 4) (seven pieces) and 5) gas tubes (three pieces).

Combustion head setting

The same for both LPG and natural gas. Please. refer to the burner instruction manual for the combustion head adjustment.

Gas pressure
The 2.4.1 shows minimum pressure losses along the gas supply line depending on the maximum burner output operation.

Column 1

Pressure loss at combustion head.
Gas pressure measured at the test point 1)(Fig. 5), with:

• combustion chamber at 0 “WC;
• burner working at maximum output;
• combustion head adjusted as in the burner instruction manual.

Column 2

Pressure loss at gas butterfly valve 2)(Fig. 5) with maximum opening: 90°.

Note
See the accompanying instructions for the adjustment of the gas train.

Ignition pilot burner

For proper operation, adjust gas pressure (measured at pressure test point 1)(Fig. 5) as follows:

WARNING
Check pilot flame stability before starting up the main burner.

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