Hanbell RC2-1020AV, Manual

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13
Pipings:
Improper piping works could cause abnormal vibration and noise and might damage the compressor. Take notice of
the following points to prevent this situation from happening:
1. System cleanliness should be kept after welding the piping to avoid any swarf or debris inside the system as they
may cause serious damage to the compressor during operation.
2. In order to reduce the vibration on the piping tubes, it is recommended use copper tubes for suction and discharge
piping tubes. Copper tubes could limit the vibration in the piping while the compressor is in operation. In case steel
tubes are used, welding jobs are important to avoid any stress in the piping, which could cause harmonic vibration
and noise that damage compressors. If a large-caliber copper tube is not easily accessible and a steel tube is used
instead in suction piping, Hanbell also recommends use of a copper tube in discharge piping to minimize vibration
and noise.
3. Remove oxidized impurities, swarf or debris brought by welding in the piping tubes. If they fall into the compressor,
the oil filter might be clogged resulting in malfunctioning of lubrication system, bearings and capacity control
system.
4. The material of suction and discharge flanges is forged steel and it can be welded directly with piping. After welding
the flanges and pipes, it must be cooled down by ambient air. Do not use water to cool it down because water
quenching is prohibited.
Installing the compressor on slope:
Figure 11 shows a 15° limit of oblique angle for installation of compressor. In case the oblique angle is higher than the
limit, compressor will be shut down easily. For special applications like the installation in ships, fishing boats, etc…,
where the oblique angle might exceed the limit, external oil separators, oil tanks and related accessories are
recommended to be installed. Please contact HANBELL or local distributors for further layout recommendation.
Figure 11 Limits of oblique angle for the installation of the compressor