36
Note:
1. Hanbell recommends using selection program to get the suggested Vi because inappropriate Vi selection will
cause higher power consumption, vibration and discharge temperature.
2. When compressor running below 70% capacity, because the slide is partially inside the compression chamber
and results the inappropriate Vi, the system will suffer higher discharge temperature. Therefore Hanbell
recommends not running compressor under partial load in a long time.
To ensure compressor performs in a high efficiency condition and prevent from additional power loss, built-in Vi is
designed for all models ( Vi = 2.2, 2.6, 3.0, 3.5, 4.8 ), so the customer could select the suitable Vi according to
different working condition. Please refer to Hanbell selection software to get the recommended Vi for different
working condition.
Built-in fixed type Vi
2.6.2 Floating type medium pressure ( for application with economizer)
Normally, a fix type medium pressure compressor when combine with economizer, the economizer can only
develop their effect in full load condition or closed to full load condition.
RC2-F series uses floating medium pressure design, the floating mechanical design is shown in the next drawing.
Economizer can be functioned not only in full load condition, but also in partial load condition. The economizer can
reach the best medium pressure value and develops the maximum efficiency.
Floating type medium pressure explanation
B - B' View
A - A' View
P2
P1
P2
A'
B
A
P1
PART LOAD
FULL LOAD
Medium pressure’s position will vary as shown in the above drawing. When the slide is at full load position, the
medium pressure is P1. When the slide is at partial load position, the medium pressure is P2.
Vi 2.6
Vi 3.5
Summary of Contents for RC2-F Series
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