Buderus Logano GB125, Инструкция по установке и обслуживанию

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Specification 3
Logano GB125 oil condensing boiler - Technical specifications are subject to change without prior notice. 12
3.3.4 Fuel conditions
3.3.5 Mains power supply conditions
Operating Conditions Notes – detailed requirements
Permissible fuels for boilers
with Logatop oil burner – Boilers with integral oil burner must only be operated with fuel oil. The kinematic
viscosity of the oil must not exceed 6 mm
2
/s (at 20 °C). This is equivalent to a
Redwood I viscosity of 41.0 s (UK) or Sayboldt viscosity of 45.5 s (USA).
Reduce the maintenance/cleaning interval accordingly if fuel oil of poor quality is
used.
Contamination – Technically free of contaminants (such as, for example, dust, water vapour, li-
quids), i.e. the constant operation will not result in deposits that may lead to a re-
striction of cross-section in valves, sieves and filters.
Tab. 9 Fuels
Operating Conditions Notes – detailed requirements
Power supply voltage 195 – 253 V Observe the voltage range of the burner and control unit used. The outer
casing/boiler must be earthed for safety reasons and to function correctly.
Fuse 10 A
Frequency 47.5 – 52.5 Hz Sine wave
IP rating IP40 (protected against ingress of foreign bodies > 1 mm dia.; no protection against
water ingress)
Tab. 10 Mains power supply
3.3.6 Conditions regarding hydraulics and water quality
Operating Conditions Notes – detailed requirements
Operating pressure 0.5 – 3.0 bar
Permissible test pressure 1.0 – 3.9 bar
Protection against excess tem-
peratures via TR thermostat 50 – 90 °C
Protection against excess tem-
peratures via high limit safety
cut-out STB 100 °C
Water quality – Only use drinking water to fill and top up the boiler. We recommend a pH value
of 8.2 – 9.5 (observe VDI 2035).
Tab. 11 Hydraulics and water quality