The Riello RL 70 is an automatic two-stage light-oil burner with a firing range of 255/474–830 kW. A hydraulic actuator controls the combustion-air damper, and separate first- and second-stage oil valves regulate fuel delivery.
Product Specification
- Monobloc forced-draught construction with a sound-insulated air intake and backward-curved centrifugal fan.
- Adjustable hydraulic ram controls the air damper.
- Output-adjustable combustion head with a corrosion- and heat-resistant stainless-steel end cone, ignition electrodes and flame-stability disc.
- AL 95C gear pump with filter, pressure regulator, pressure-gauge and vacuum-gauge connections, and internal bypass for single-pipe installations.
- Oil-valve assembly with one safety valve and two delivery valves.
- Photocell flame detection and RMO microprocessor-based safety control with diagnostics.
- Burner on/off switch, manual first-/second-stage selector and flame-inspection window.
- Slide bars for installation and maintenance, and radio-interference suppression filter.
Electrical and Operating Data
- Heat output: 255/474–830 kW.
- Light-oil firing rate: 21.5/40–70 kg/h.
- Main supply: three-phase, 400 V with neutral or 230 V, 50 Hz.
- Auxiliary supply: single-phase, 230 V, 50 Hz.
- Fan motor: 1.1 kW, 2800 rpm.
- Total electrical power: 1.4 kW.
- Protection: IP44 burner; IP54 fan motor.
- Light-oil viscosity: 4–6 mm²/s (cSt) at 20°C.
- Operating temperature: 0–40°C.
- Duty: intermittent; at least one stop every 24 hours.
- Standard: EN 267.
Standard Equipment
- Two flexible oil hoses with gaskets and two pump-connection nipples.
- Four boiler-flange fixing screws and a thermal screen.
- Installation, operation and maintenance handbook, and spare-parts catalogue.
- Oil nozzles are ordered separately.
