2200LZJE-HO-C6-N_2013.12.
Chapter 1 Safety
Compound 2-stage Screw Compressor 2016**C
1.1
Observation/Prevention (DOs and DON'Ts)
1-1
Chapter 1 Safety
1.1
Observation/Prevention (DOs and DON'Ts)
1.1.1 DOs
1.1.1.1 DOs on Operation
Make sure to attach safety and protective devices on the unit.
Regularly inspect the safety and protective devices if they function properly.
If the safety or protective devices do not work properly or if this product operates abnormally,
immediately stop the operation and report to the supervisor. Obtain his/her approval and
direction before restarting the compressor.
If this product stops for unknown reasons, immediately inform your supervisor of it. Obtain
his/her approval before restarting the compressor.
Some types of refrigerants emit bad smell or toxic gases when they leak. Make sure to
ventilate the air during operation.
For the properties of refrigerant and lubricant (corrosiveness, decomposability or toxicity), be
sure to obtain the Safety Data Sheet (SDS) and follow the relevant information.
When stopping the operation of this product, close the suction and discharge side shut-off
valves and turn "OFF" the motor (main power), heater power, and control power.
1.1.1.2 DOs on Maintenance
Prepare work procedures based on a work schedule. Be sure to perform danger forecasting
before starting the work.
Before performing the work together with at least one other person, thoroughly confirm each
other's work details and procedures to acknowledge the other worker's movement.
When troubleshooting during operation or before performing setup, cleaning or
maintenance/inspection of this product, always turn OFF the main power to the motor and
control power and other devices. Also, lock and tag out them to prevent the power from being
supplied erroneously during operation.
When troubleshooting during operation or before performing setup, cleaning or
maintenance/inspection of this product, confirm that the pressure inside this product and the
refrigerating/cold storage unit is at atmospheric pressure.
Some refrigerants in use generate bad smell or toxic gases, or may cause deficiency of
oxygen. Before starting work, measure oxygen concentration in the work area as necessary.
Ventilate the area well. Be sure to keep the area well ventilated until the work is finished.
For the properties of refrigerant and lubricant (corrosiveness, decomposability or toxicity), be
sure to obtain the Safety Data Sheet (SDS) and follow the relevant information.
After using tools always restore to designated place and never leave tools in the compressor.
1.1.1.3 DOs on Lockout/Tagout after Shutting Off the Power
Attach lockout/tagout mechanism to the main breakers of motor main power and control power.
Lockout/tagout after power off is a very effective means to secure safety. It can prevent the
power source from being turned on by accident by two or more workers which may cause
injury to other worker(s).
If there are any possibilities of danger during works (especially during cleaning, maintenance
and inspection, and troubleshooting), turn "OFF" the motor main power and control power, and
perform lockout/tagout.
