Carbolite HRF 7/22 Installation, Operation & Maintenence Manual page 2

HRF
S & W
YMBOLS
1.1 Switches and Lights
1.2 Warning Symbols
2.0
2
ARNINGS
Supply Light: when the furnace is connected to the electrical supply the
light in the adjacent switch glows
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.
MF05