Hanbell RC2-AVI Series, Manual

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 RC2-1020AVI, RC2-1270AVI cable box
Figure 4.16: IP54 cable box
i. Liquid injection system (solenoid valve + expansion valve)
Liquid injection system is an auxiliary mechanism to cool motor coil. RC2-AVI series’ motor is cooled by suction return
gas. In high-condensing-temperature or low-evaporating-temperature applications, liquid injection system is
recommended to cool motor coil auxiliary. In high-compression-ratio applications, liquid injection to compression
chamber is also recommended to absorb high compression heat due to high compression ratio to maintain normal
discharge temperature. Please refer to Chapter 7 for details of additional cooling.
Hanbell provides the following liquid injection expansion valves and solenoid valves for customers’ options. Please
refer to capacity recommended in Hanbell selection software to choose appropriate liquid injection expansion valves.
Brand Model
Low Temp.
Type
High Temp.
Type
SPORLAN
Y1037-FV-3-180,3/8"SAE ○
Y1037-FV-5-180,3/8"SAE ○
ALCO
TCLE-3HW-6A ○
TCLE-5HW-6A ○
TCLE-10HW-6A
○
FUJIKOKI JBE-E60HFKT-1
○
j. Liquid injection system (solenoid valve + stop valve)
This simple liquid injection system adjusts amount of
liquid injection by stop valve, suitable for application
with level load and ambient temperature but it’s not
recommended. Opening ratio of stop valve could not
vary with system loading and change of temperatures.
Therefore, frequent check of discharge temperature
can prevent damage of compressor due to over cooling
or insufficient cooling.
k. External oil separator
For improvement of oil return in flooded-type, low-temperature and parallel systems, system with long piping, Hanbell
specially designs a complete series of external oil separators – OS series with characteristics of high separation
efficiency and low pressure drop. The following table shows details of OS series:
Note: It is recommended to install a muffler before the external oil separator to avoid noise and vibration caused by
resonance.
( ) Technical data
Ⅰ ：
Model Type
Oil Volume (Liter) Range of application based on
Displacement (m
3
/hr)
(Recommended)
Shell Diameter
High level Low level
OS40 Vertical 17 9 205 14”
OS50 Vertical 22 12 206~270 16”
OS65 Vertical 31 18 271~440 18”
OS80 Horizontal 33 20 441~705 20”
OS100 Horizontal 40 27 706~1120 20”