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Bruciatori di gasolio Quemadores de gasóleo Queimadores a gasóleo One stage operation Funcionamiento a una llama Funcionamento a uma chama CODE - CÓDIGO MODEL - MODELO TYPE - TIPO 3472080 RL 28/1 657 T80 3472081 RL 28/1 657 T80 2916092 (0)
BURNER DESCRIPTION (A) 1 Ignition electrodes 2 Combustion head 3 Screw for combustion head adjustment 4 Photocell for flame presence control 5 Screw for fixing fan to flange 6 Indexed selector. Opens the fan gate to the value necessary at the burner delivery 7 Slide bars for opening the burner and inspect- ing the combustion head...
FIRING RATES (A) The burner delivery must be selected within area of the adjacent diagram. This area is called firing rate and provides the delivery of the burner in relation to the pressure in the combustion chamber. The work point may be found by plotting a verti- cal line from the desired delivery and a horizontal line from the pressure in the combustion cham- ber.
INSTALLATION BOILER PLATE (A) Drill the combustion chamber locking plate as shown in (A). The position of the threaded holes can be marked using the thermal screen supplied with the burner. BLAST TUBE LENGTH (B) The length of the blast tube must be selected ac- cording to the indications provided by the manu- facturer of the boiler, and in any case it must be greater than the thickness of the boiler door com-...
Find the delivery of the two nozzles in Table (C)p.5 , 20.7 kg/h. Diagram (F) indicates that for a delivery of 20.7 kg/h the RL 28/1 Model requires the combustion head to be set to approx. three notches, as shown in fig. (E).
HYDRAULIC SYSTEM FUEL SUPPLY Double-pipe circuit (A) The burner is equipped with a self-priming pump which is capable of feeding itself within the limits listed in the table at the side. The tank higer than the burner A The distance "P" must not exceed 10 meters in order to avoid subjecting the pump's seal to ex- cessive strain;...
Do not invert the neutral with the phase wire in the electricity supply line. NOTE The RL 28/1 burner has been type-approved for intermittent operation. This means it should compulsorily be stopped at least once every 24 hours to enable the control box to check its own efficiency at start-up.
PUMP (A) PUMP SUNTEC AN 57 C 1 - Suction G 1/4" 2 - Return G 1/4" 3 - Pressure gauge attachment G 1/8" 4 - Vacuum meter attachment G 1/8" 5 - Pressure adjustment screw A - Min. delivery rate at 12 bar pressure B - Delivery pressure range C - Max.
BURNER CALIBRATION FIRING During the first firing, when the 2nd nozzle piping is being filled, a temporary decrease in fuel pres- sure takes place. This lowering of the fuel pres- sure can cause the burner to lock-out and can sometimes give rise to pulsations. Once the following adjustments have been made, the firing of the burner must generate a noise similar to the noise generated during oper-...
BURNER OPERATION BURNER STARTING (A) - (B) Starting phases with progressive time intervals shown in seconds: • Control device TL closes. After about 3s: • 0 s : The control box starting cycle begins. • 2 s : The fan motor starts. •...
FINAL CHECKS • Obscure the photocell and switch on the con- trol devices: the burner should start and then lock-out about 5 s after opening of the 1st noz- zle operation valve. • Illuminate the photocell and switch on the con- trol devices: the burner should start and then go into lock-out after about 10 s.
BURNER START-UP CYCLE DIAGNOSTICS During start-up, indication is according to the followin table: COLOUR CODE TABLE Sequences Colour code Pre-purging Ignition phase Operation, flame ok Operating with weak flame signal Electrical supply lower than ~ 170V Lock-out Extraneous light Key: Yellow Green RESETTING THE CONTROL BOX AND USING DIAGNOSTICS...
SIGNAL FAULT PROBABLE CAUSE SUGGESTED REMEDY No blink The burner does not - No electrical power supply ......Close all switches - Check fuses start - A limit or safety control device is open .
STATUS STATUS Accessory available on request. (optional) See page 2. ASSEMBLY The burners are preset to accept the Status. To assemble, proceed as follows: - Connect Status 1) using connector 2) fitted on the bracket 3). Assembly - Fasten Status to the bracket using the screws 4) supplied with the kit.