Residual Risks - mycom i125S Instruction Manual

1.3

Residual Risks

The following information assumes that this product is operated or inspected/maintained as part of a
general package unit for refrigeration/cold storage. It is impossible to predict all the risk sources
involved in actual use of the package unit.
Devise appropriate countermeasures for hazardous sources in your systems.
Hazardous
sources
A Motor and
compressor
coupling
B Motor
terminals
C Compressor
suction casing
D Compressor
discharge
casing and
discharge
piping
E Solenoid valve
for controlling
compressor
capacity
F Package Unit
Check valve,
service valve
and joint in
each section
G Package Unit
Solenoid valve
or motor
operated
valve
Screw Compressor i-series
Table 1-2 Hazardous Sources
Predicted hazard
 Caught in or
entangled in due to
contact
 Electric shock caused
by contact with live
wires or electrical
leakage
 Frostbite due to
contact
 Contact with or
inhalation of
hazardous
substances generated
by leakage of
refrigerant or the like
 Burn injury due to
contact
Contact with or
inhalation of
hazardous
substances generated
by leakage or spout of
refrigerant or the like
 Electric shock caused
by contact with live
wires or electrical
leakage
 Contact with or
inhalation of
hazardous
substances generated
by mishandling or
leakage
 Frostbite or burn due
to contact
 Electric shock caused
by contact with live
wires or electrical
leakage
 Pinched due to
contact with driving
part
Measures to be taken
in operation
 Install cover on the
opening of coupling,
or prohibit opening.
 Keep away.
 Keep away.
 Do not open terminal
boxes.
 Do not touch terminal
boxes.
 Keep away and do not
touch.
 Wear protective gear.
 Detect gas leakage.
 Keep away and do not
touch.
 Wear protective gear.
 Detect gas leakage.
 Install protective cover
on terminals, and
prohibit opening.
 Keep away and do not
touch.
 Wear protective gear.
 Sufficient ventilation
 Indicate valve
open/close state.
 Keep away and do not
touch.
 Wear protective gear.
 Install protective cover
on terminals, and
prohibit opening.
 Keep away and do not
touch.
 Wear protective gear.
1-4
2200M4JE-HO-iS2-N_2014.04.
Chapter 1 Safety
Measures to be taken
during cleaning,
inspection or parts
replacement
 Turn off motor main
power and control
power, and conduct
lockout/tagout.
 Turn off motor main
power and control
power, and conduct
lockout/tagout.
 Wear protective gear.
 Work under room
temperature.
 Wear protective gear.
 Work at a temperature
of not higher than
40°C.
 Turn off each breaker
and the control power,
and conduct
lockout/tagout.
 Wear protective gear.
 Sufficient ventilation
 Wear protective gear.
 Tagout for controlled
valve
 Turn off each breaker
and the control power,
and conduct
lockout/tagout.
 Wear protective gear.
1.3 Residual Risks