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Installation, use and maintenance instructions
Instrucciones de Instalación, Funcionamiento y Mantenimiento
Instruções de Instalação, Funcionamento e Manutenção
Light oil burners
GB
Quemadores de gasóleo
E
Queimadores a gasóleo
P
Two stage operation
Funcionamiento a dos llamas
Funcionamento a duas chamas
CODE - CÓDIGO
3470410
3470411
MODEL - MODELO
RL 64 MZ
RL 64 MZ
TYPE - TIPO
974 T
974 T
2916278 (6) - 03/2010
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Related Manuals for Riello RL 64 MZ
Summary of Contents for Riello RL 64 MZ
- Page 1 Quemadores de gasóleo Queimadores a gasóleo Two stage operation Funcionamiento a dos llamas Funcionamento a duas chamas CODE - CÓDIGO MODEL - MODELO TYPE - TIPO 3470410 RL 64 MZ 974 T 3470411 RL 64 MZ 974 T 2916278 (6) - 03/2010...
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Page 3: Table Of Contents
To ensure a periodic check, recommends the drawing up of a Maintenance Contract. Manufacturer's Declaration RIELLO S.p.A. declares that the following products comply with the NOx limits specified by German standard “1. BImSchV 2009”. Product Type Model Light oil burners... -
Page 4: Technical Data
TECHNICAL DATA MODEL RL 64 MZ TYPE 974 T OUTPUT 2nd stage 391 - 830 Mcal/h 336 - 714 DELIVERY kg/h 33 - 70 1st stage 206 - 391 Mcal/h 177 - 296 kg/h 17,4 - 33 FUEL LIGHT OIL... -
Page 5: Burner Description
MAX. DIMENSIONS (C) Approximate measurements. The maximum dimensions of the burner are giv- en in (C). RL 64 MZ 1200 Bear in mind that inspection of the combustion head requires the burner to be opened and the rear part withdrawn on the slide bars. -
Page 6: Firing Rates
FIRING RATES (A) The burners can work in two ways: one-stage and two-stage. 1st stage DELIVERY must be selected within area A of the adjacent diagrams. 2nd stage DELIVERY must be selected within area B. This area provides the maximum deliv- ery of the burner in relation to the pressure in the combustion chamber. -
Page 7: Boiler Plate
(A). The position of the threaded holes can be marked using the thermal screen supplied with the burner. RL 64 MZ 275-325 BLAST TUBE LENGTH (B) The length of the blast tube must be selected ac- cording to the indications provided by the manu-... -
Page 8: Nozzle Assembly
(F) is level with the front surface of flange 5)(E). COMBUSTION HEAD SETTING Example: The RL 64 MZ model with two 7.00 GPH noz- zles and 12 bar pump pressure. Find the delivery of the two 7.00 GPH nozzles in table (D), page 5: 29.7 + 29.7 = 59.4 kg/h. -
Page 9: Hydraulic System
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;... -
Page 10: Pump
PUMP (A) SUNTEC AL 95 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 6 - By-pass screw A - Min. delivery rate at 12 bar pressure B - Delivery pressure range C - Max. -
Page 11: Burner Calibration
D469 12 bar: This is the pressure calibrated in the fac- tory which is usually sufficient for most purposes. 1st STAGE RL 64 MZ Sometimes, this pressure must be adjusted to: = Notch Nr. 10 bar in order to reduce fuel delivery. This ad- justment is possible only if the surrounding tem- 4.00... -
Page 12: Burner Operation
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. •... -
Page 13: Final Checks
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. - Page 14 Boiler Clean the boiler as indicated in its accompanying instructions in order to maintain all the original combustion characteristics intact, especially the flue gas temperature and combustion chamber pressure. TO OPEN THE BURNER (D) - Switch off the electrical power - Remove screw 1 and withdraw the casing 2) - Unscrew screw 3) - Fit the two extensions 4) supplied with the...
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Page 15: Burner Start-Up Cycle Diagnostics
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 Yellow Green Key: RESETTING THE CONTROL BOX AND USING DIAGNOSTICS... -
Page 16: Fault - Probable Cause - Suggested Remedy
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 . -
Page 17: Status (Optional)
STATUS STATUS Accessory available on request. (optional) See page 16. ASSEMBLY The burners are preset to accept the Status. To Assembly assemble, proceed as follows: 1 Status - Connect Status 1) using connector 2) fitted on 2 Connector the bracket 3). 3 Bracket of the burner - Fix the support 5) to the Status using the 4 Fixing screws... -
Page 18: Accessories
If the burner is installed in places particularly subject to radio disturbance (emission of signals exceeding 10 V/m) owing to the presence of an INVERTER, or in applications where the length of the thermostat connections exceeds 20 metres, a protection kit is available as an interface between the control box and the burner. BURNER RL 64 MZ Code 3010386 • DEGASSING UNIT It may occur that a certain amount of air is contained in the light oil sucked up by the pump. -
Page 19: Appendix
The electrical wirings must be carried out in conform- ity with the regulations in force in the countries of destination, and by qualified personnel. Riello S.p.A. cannot accept any responsibility for modifications or connections other than those shown in these diagrams.