Safety-1
T--295
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. A listing of the specific 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.
No work should be performed on the unit until all circuit breakers and start-stop switches are placed in the OFF
position, and power supply 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 t he evaporator and condenser fans. Do not open t he unit cover before turning
power off.
Be surepoweris turnedoff beforeworking on motors,controllers, solenoid valves and electrical controls. Tagcircuit
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.
When performinganyarc welding on the unit, disconnect all wire harnessconnectors fromthe modulesin the control
box. Do not remove wire harness from the modules unless you are grounded 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).
SPECIFIC WARNINGS AND CAUTIONS
WARNING
DO NOT USE A NITROGEN CYLINDER WITHOUT A PRESSURE REGULATOR
WARNING
DO NOT USE OXYGEN IN OR NEAR A REFRIGERATION SYSTEM AS AN EXPLOSION MAY
OCCUR.
WARNING
THE FILTER-DRIER MAY CONTAIN LIQUID REFRIGERANT. SLOWLY LOOSEN THE
FLARE NUTS AND AVOID CONTACT WITH EXPOSED SKIN OR EYES.
CAUTION
Donotunderanycircumstances attempttoservice themicroprocessor.shoulda problemdevelop with
the microprocessor, replace it.
CAUTION
If unit was r ecently operated, be careful of r emaining hot coolant in the hoses when disassembling.
AC Pressure Sensor
To Next Page
Loading...
