Operating instructions

SAFETY CONSIDERATIONS
Installing and servicing heating equipment can be hazardous due to oil and electrical components. Only trained and qualified personnel should
install, repair, or service heating equipment. Untrained personnel can perform basic maintenance functions such as maintaining water level. All
other operations must be performed by trained service personnel. When working on heating equipment, observe precautions in literature, on tags,
and on labels attached to or shipped with unit and other safety precautions that may apply.
Recognize safety information. This is the safety-alert symbol
. When you see this symbol on unit or in instructions and manuals, be alert to
potential for personal injury.
Understand the signal words DANGER, WARNING, and CAUTION. These words are used with safety-alert symbol. DANGER identifies the
most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or
death. CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage. NOTE is used
to highlight suggestions which will result in enhanced installation, reliability, or operation.
Fig. 1—Model BW4/BW5
A01057
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ASME
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