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 be understood and applied during operation and maintenance of the equipment covered herein. The general safety notices are presented in the following three sections labeled: First Aid, Operating Precautions and Maintenance Precautions. A listing of the specific warnings and cautions appearing elsewhere in the manual follows the general safety notices.
FIRST AID
An injury, no matter how slight, should never go unattended. Always obtain first aid or medical attention immediately.
OPERATING PRECAUTIONS
Always wear safety glasses.
Keep hands, clothing and tools clear of the evaporator and condenser fans.
No work should be performed on the unit until all circuit breakers,
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 fan. Do not open the evaporator access panels before turning power off, disconnecting and securing the power source.
Be sure power is turned off before working on motors, controls, solenoid valves and electrical control switches. 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 diagnosed, and any necessary repairs performed, by qualified service personnel.
In case of electrical fire, open circuit switch and extinguish with CO2 (never use water).
SPECIFIC WARNING AND CAUTION STATEMENTS
To help identify the label hazards on the unit and explain the level of awareness each one carries, an explanation is given with the appropriate consequences:
WARNING - means to warn against hazards or unsafe conditions which could result in severe personal injury or death.
CAUTION - means to warn against potential hazard or unsafe practice which could result in product or property damage.
The statements listed below are applicable to the unit and appear elsewhere in this manual. These recommended precautions must be understood and applied during operation and maintenance of the equipment covered herein.
WARNING
Never reach into unit while fan is running. Lock open and tag unit disconnect before working on fan. Remove fuses and take them with you after noting this on tag.
WARNING
Follow all Safety codes. Wear safety glasses and rubber gloves when using inhibited hydrochloric acid solution.
WARNING
Lock open and tag unit disconnect before working on fan motor. Remove fuses and take them with you after noting this on tag.
CAUTION
Compressor crankcase heater must be energized for 24 hours prior to start up to prevent compressor bearing damage.
