TK 56704-1-OP-EN
11
Low Voltage
IImmppoorrttaanntt:: Some SR-3 components are connected directly to un-switched
battery power. All connections and circuits labeled with a “2”
prefix are connected directly to battery power. Always
disconnect the battery before servicing the unit.
WWAARRNNIINNGG
LLiivvee EElleeccttrriiccaall CCoommppoonneennttss!!
Control circuits used in refrigeration units are low voltage (12 to 24 volts
dc). However, the large amount of amperage available can cause severe
burns if accidentally shorted to ground with metal objects, such as tools. Do
not wear jewelry, watches, or rings because they increase the risk of
shorting out electrical circuits and damaging equipment or causing severe
burns.
Refrigeration System Hazards
In the United States all technicians who maintain, service, repair, or dispose
of equipment that could release refrigerants into the atmosphere must be
EPA 608 certified. Thermo King recommends all service be performed by a
Thermo King dealer.
DDAANNGGEERR
HHaazzaarrddoouuss GGaasseess!!
Refrigerant in the presence of an open flame, spark, or electrical short
produces toxic gases that are severe respiratory irritants which can cause
serious injury or possible death.
DDAANNGGEERR
RReeffrriiggeerraanntt VVaappoorr HHaazzaarrdd!!
Do not inhale refrigerant. Use caution when working with refrigerant or a
refrigeration system in any confined area with a limited air supply.
Refrigerant displaces air and can cause oxygen depletion, resulting in
suffocation and possible death.
SSaaffeettyy PPrreeccaauuttiioonnss
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