Replacing The Compressor - Huawei NetCol5000-A User Manual

NetCol5000-A 42 kW Air Cooled In-row Precision Air
Conditioner
User Manual
Step 9 Power on the device and tap Startup on the home screen. Ensure that the air conditioner is
running normally without any alarms.
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5.4.4 Replacing the Compressor

Prerequisites
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Context
Components and working principle: The scroll compressor is composed of the air intake and
exhaust angle valves, oil pump, motor, and electric heating belt. Air is sucked from the
outside and exhausted from the position in the center. A variable-frequency scroll compressor
uses a frequency converter, and generates different air volumes as the frequency changes,
thereby increasing or reducing the cooling and heating capacity. When the compressor
operates at a high speed, it generates a large heating or cooling capacity, which enables the
room temperature to quickly reach the preset temperature. When the room temperature
decreases to a value close to the preset temperature, the compressor frequency automatically
decreases to a certain level to meet the heating or cooling capacity requirements and maintain
the room temperature at a stable level.
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Figure 5-11
Issue 01 (2017-07-27)
The compressor needs to be replaced.
A spare compressor of the same model is available and functional.
The compressor must be replaced with the dry filter.
shows how to replace the dry filter.
Recommended materials: Phillips screwdriver, two 45# adjustable wrenches, 45# and
50# torque wrenches, 13# and 30# solid wrenches or socket wrenches, new compressor,
dryer filter, refrigerant reclaiming devices, refrigerant charging devices, R410A
refrigerant
Reclaim or dispose of the refrigerant in accordance with local laws and regulations. Do not
discharge the refrigerant to the atmosphere.
When replacing a compressor, avoid skin contact with the refrigerant or lubricant to
prevent frostbite or burns.
Do not tilt the compressor during replacement to prevent lubricant leakage.
Install a new compressor immediately after you remove the rubber plugs of the suction
inlet and exhaust outlet to prevent the moisture.
shows an angle valve.
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5 Operation and Maintenance
5.4.5 Replacing the Filter Dryer
165