Bartscher F 120, Руководство по обслуживанию

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K Gear motor
The gearmotor ismade of a single phase elec-
tric motor with permanent capacitor directly fit-
ted on a gear box.
The drive motor rotor is kept aligned on its ver-
tical axis by two ball bearings permanently
lubricated. The gear case contains a train of
three spur gears with the first one in fiber to limit
the noise level. All the three gears are encased
in case roller bearings and are covered by lubri-
cant grease (MOBILPLEX IP 44).
Two seal rings, one fitted on the rotor shaft and
the other on the output shaft keep the gear case
sealed.
The interior can be inspected and serviced by
unbolting the two halves of the aluminium gear
case housing.
L Fan motor (Air cooled version)
The fanmotor is controlled through the TRIAC of
the P.C. BOARD by the condenser temperature
sensor. Normally it operates to draw cooling air
through the condenser fins.
In cold ambient situation, the fan motor can run
at intermittance as the condenser pressuremust
be kept between two corresponding head pres-
sure values.
M Water regulating valve
This valve controls the head pressure in the
refrigerant systemby regulating the flowofwater
going to the condenser.
As pressure increases, the water regulating
valve opens to increase the flow of cooling
water.
N Compressor
The hermetic compressor is the heart of the ref-
rigerant system and it is used to circulate and
retrieve the refrigerant throughout the entire
system.
It compresses the lowpressure refrigerant vapor
causing its temperature to rise and become
high pressurehotvaporwhich isthenreleased-
through the discharge valve.