Carbolite BLF 18/21 - Manual (Page 2)

BLF
2
MF23 – 3.11
1.0 S YMBOLS & W ARNINGS
1.1 Switches and Lights
1.2 Warning Symbols
Instrument switch: when the instrument switch is operated the temperature
control circuit is energised.
Heat Light: the adjacent light glows or flashes to indicate that power is
being supplied to the elements
DANGER of electrical shock– read any warning printed by this symbol.
DANGER – hot surface. Read any warning printed by this symbol.
WARNING: all surfaces of a furnace may be hot.
DANGER – read any warning printed by this symbol.