Service manual

Safety-1 T -294-01
SAFETY SUMMARY
GENERAL SAFETY NOTICES
The following general safety notices supplement the specific warnings and cautions appearing elsewhere in this
manual. They are recommended precautions that must beunderstood andapplied during operation and maintenance
oftheequipmentcoveredherein.Thegeneralsafetynoticesarepresentedinthefollowingthreesectionslabeled:First
Aid, Operating Precautions and Maintenance Precautions. A listing of thespecific warnings and cautions appearing
elsewhere in the manual follows the general safety notices.
FIRST AID
Aninjury,nomatterhowslight,shouldnevergounattended.Alwaysobtainfirstaidormedicalattentionimmediately.
OPERATING PRECAUTIONS
Always wear safety glasses.
Keep hands, clothing and tools clear of the evaporator and condenser fans.
Noworkshouldbeperformedontheunituntilallcircuitbreakers,start-stopswitchesareturnedoff,andpowersupply
is disconnected.
Always work in pairs. Never work on the equipment alone.
In case of severe vibration or unusual noise, stop the unit and investigate.
MAINTENANCE PRECAUTIONS
Beware of unannounced starting of the evaporator and condenser fans. Do not open t he condenser fan grille or
evaporator access panels before turning power off, disconnecting and securing the power plug.
Besurepoweristurnedoffbeforeworkingonmotors,controllers,solenoidvalvesandelectricalcontrolswitches.Tag
circuit breaker and power supply to prevent accidental energizing of circuit.
Do not bypass any electrical safety devices, e.g. bridging an overload, or using any sort of jumper wires. Problems
with the system should be dia gnosed, and any necessary repairs performed, by qualified service personnel.
Whenperforminganyarcweldingontheunitorcontainer,disconnectallwireharnessconnectorsfromthemodulesin
both control boxes. Do not remove wire harness from the modules unlessyou aregrounded to the unit frame with a
static safe wrist strap.
In case of electrical fire, open circuit switch and extinguish with CO
2
(never use water).