Maintenance; Electric Box - Carrier 30AJ Manual De Instalación, Operación Y Mantenimiento

8. MAINTENANCE

8.1 - ELECTRIC BOX

a) GENERAL NOTES :
The electric box of the 30AJ units were designed in order to
make the inspection and maintenance services easier. All
the control, start-up and protection devices are located there.
Exist two terminals block to control and power wire. In the
terminal block also be includ the ground terminal.
b) PRESSURE SWITCH:
The pressure switch in the machines 30AJ are the individual
type both sides(High and Low). Both are rearm automatic
and of the side high it the type miniature connected in the
discharge line.
Independent of it rearms to be automatic or manual when
disarming the machine is blocked for the module. The valves
of disarm these pressure switch are indicated in the table
of general characteristics.
A time verified and cured the cause of disarms it, reseting
can to be made disconnect and restarting the unit in the
panel of control or through the restoration of power to the
command.
d) PROTECTION OF THE COMPRESSORS:
- Compressors 220 and 380V - Line break (intern)
The "line break" is a protection dispositive against overload
and superheating of the engine from the compressor that is
installed inside (in the stator of motor).
It directly acts in the circuit of engine force, rearming
automatically with the decrease of the temperature, however
the compressor will remain off due action of the device anti-
recycle. It rearms it can be made through the key ON/OFF
from the unit.
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