Compressed Air Dryer
Chapter 2: Functional Description
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2-5 Safety Features
This section includes information on safety devices and procedures that are inherent to the 10
cfm compressed air dryer. This manual is not intended to supersede or alter safety standards
established by the user of this equipment. Instead, the material contained in this section is
recommended to supplement these procedures in order to provide a safer working
environment.
Safety Circuit Standards
Safety circuits used in industrial systems protect the operator and maintenance personnel
from dangerous energy. They also provide a means of locking out or isolating the energy for
servicing equipment.
Various agencies have contributed to the establishment of safety standards that apply to the
design and manufacture of automated equipment. The Occupational Safety and Health
Administration (OSHA) and the Joint Industrial Council (JIC) are just a few of the
organizations that have joined with the plastics industry to develop safety standards.
Every effort has been made to incorporate these standards into the design of the dryer;
however, it is the responsibility of the personnel operating and maintaining the equipment to
familiarize themselves with the safety procedures and the proper use of any safety devices.
High Temperature Safety System
A high temperature safety system will disable the dryer if the process temperature is too hot.
The high temperature safety is designed so that if it fails, the failure causes a “safe”
condition, and the dryer will not run. The compressed air continues flowing to cool down the
system.
Airflow monitoring Safety System
If the airflow source to the compressed air dryer is below 35 PSI, the unit will shut down and
not run. This is an indication that there is not enough pressure and flow for proper operation
of the unit.
Line Cord Plug (115/1/60 units only)
The line cord plug allows the operator or maintenance personnel to unplug the dryer from its
power source and tag it out. This plug may be tagged with any number of approved electrical
lockout tags. These tags are available at most electrical supply stores. Always disconnect
power before servicing or moving this unit.
DANGER!
At no time should anyone remove the lockout or reconnect the twist plug,
other than the person who installed the lockout or who unplugged the twist
plug.
2-6 Drying Hopper Air Trap
Refer to the drying hopper Operation and Installation manual for proper operation of the
drying hopper.
