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Installation, use and maintenance instructions 安装, 使用和维护说明书 Light oil burners 轻油燃烧器 Two-stage operation 两段火运行 编码 型号 类型 CODE - MODEL - TYPE - 20033838 RL 34 MZ 972 T 20033830 RL 44 MZ 973 T 20033807 (4) - 09/2021...
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IDENTIFICATION The Identification Plate on the product gives the serial number, model and main technical and performance data. If the Identification Plate is tampered with, removed or missing, the product cannot be clearly identified, thus making any installation or maintenance work potentially dangerous. GENERAL WARNINGS The dimension of the boiler’s combustion chamber must respond to specific values, in order to guarantee a combustion with the lowest polluting emissions rate....
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 Slide bars for opening the burner and inspecting the combustion head 7 Hydraulic cylinder for regulation of the air gate valve in 1st and 2nd stage positions....
FIRING RATES (A) The RL 34 MZ - RL 44 MZ model burners can RL 34 MZ work in two ways: one-stage and two-stage. 1st stage OUTPUT must be selected within area A of the adjacent diagrams. 2nd stage OUTPUT must be within area B. This are supplies the maximum output of the burner according to the pressure in the combustion chamber.
INSTALLATION THE BURNER MUST BE INSTALLED IN CONFORMITY WITH LEGISLATION AND LOCAL STANDARDS. OPERATING POSITION (A) The burner is designed to work only in the positions 1, 2, 3 and 4. D3928 Installation 1 is preferable, as it is the only one that allows performing maintenance operations as described in this manual.
RL 34 MZ 1.00 51.0 DANFOSS 60° H 1.25 64.0 DELAVAN 60° A fied by Riello in the Instruction and warning 1.50 77.0 MONARCH 60° PL booklet should be used. 1.75 89.0 HAGO 60° P Warning: It is advisable to replace noz- 2.00...
NOZZLE ASSEMBLY At this stage of installation the burner is still dis- assembled from the blast tube; it is therefore possible to fit two nozzles with the box spanner 1) (A) (16 mm), after having removed the plastic plugs 2)(A), fitting the spanner through the cen- tral hole in the flame stability disk.
COMBUSTION HEAD ADJUSTMENT COMBUSTION HEAD ADJUSTMENT At this point of the installation, nozzle and pipe coupling are fixed to the boiler as in fig. (C) p. 5. The setting of the combustion head depends exclusively on the output of the burner in the 2nd stage - in other words, the combined output of the two nozzles selected on page 6 is a par- ticularly simple operation.
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 higher than the burner A The distance "P" must not exceed 10 meters in order to avoid subjecting the pump's seal to excessive strain;...
PUMP (A) RL 34 MZ 1 - Suction line G 1/4" SUNTEC AN 57 C 2 - Return line G 1/4" 3 - Gauge connection G 1/8" RL 44 MZ 4 - Vacuometer connection G 1/8" SUNTEC AN 67 C 5 - Pressure adjustment screw A - Min.
BURNER CALIBRATION ATTENTION QUALIFIED PERSONNEL WITH THE RIGHT INSTRUMENTS MUST HANDLE BURNER'S START-UP. FIRING Set switch 1)(B) to "ON". During the first firing, during the passage from the 1st to the 2nd stage, there is a momentary lowering of the fuel pressure caused by the fill- ing of the 2nd stage nozzle tubing.
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 lockout 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 lockout after about 10 s.
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TO OPEN THE BURNER (A) - Switch off the voltage - Remove screw 1 and withdraw the casing 2) - Unscrew screw 3) - Fit the two extensions 4), on the burner, on the guides 5) (model with nozzle 351 mm) - Pull part A backward keeping it slightly raised to avoid damaging the disk 6) on blast tube 7).
BURNER START-UP CYCLE DIAGNOSTICS During start-up, indication is according to the following 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 POSSIBLE CAUSE SOLUTION No blink The burner does not - No electrical power supply ........Close all switches - Check fuses - A limit or safety control device is open .
Electrical wiring must be made in accordance with the regulations currently in force in the country of destination and by qualified personnel. Riello S.p.A. declines all liability for modifications or connections other than those shown on these dia- grams. Use flexible cables according to standard EN 60 335-1.
油泵 (A) RL 34 MZ 1 - 供油 G 1/4" SUNTEC AN 57 C 2 - 回油 G 1/4" 3 - 压力表座 G 1/8" RL 44 MZ 4 - 真空表座 G 1/8" SUNTEC AN 67 C 5 - 压力调节螺栓 A - 压力位 12 bar 时的最小输油量 B - 压力范围...