12-1203
Page 7
12-1203 12V Heater
Electrical Hazards
High Voltage
When servicing or repairing an air conditioning unit, the possibility of serious or even fatal injury from electrical shocks exists.
Extreme care must be used when working with an operating air conditioning system. Lethal voltage can exist on connections on the
high voltage side of the system.
Precautions
1.
When working on high voltage circuits on the air conditioning units, do not make any rapid moves. If a tool drops, do not grab
for it. People do not contact high voltage wires on purpose. It occurs from an unplanned movement.
2. Use tools with insulated handles that are in good condition. Never hold metal tools in your hand if exposed, energized
conductors are in reach.
3. Treat all wires and connections as high voltage until a meter or wring diagram show different.
4. Never work alone on high voltage circuits on an air conditioning unit, another person should always be standing by in the
event of an accident to shut off the air conditioning unit and to aid a victim.
5. Have electrically insulated gloves, cable cutters, and safety glasses available in the immediate vicinity in the event of an
accident.
