Operation And Maintenance - Emerald EE-HWS-A1-220 User Manual & Installation Manual

OPERATION AND MAINTENANCE

1. Individuals should have professional knowledge when operating
the system. To ensure proper functioning, regular checks and
maintenance of the system are necessary. During maintenance,
please take note of the following points:
• To control and protect the equipment, do not make any
unauthorised adjustments to the settings.
• During system operation, closely monitor all operational
parameters to ensure they remain within normal ranges.
• Regularly inspect the electrical connections for any signs of
looseness, and if you find any, promptly secure them.
• After an extended period of downtime, when restarting the
equipment, it's essential to perform the following preparations:
examine and clean the equipment carefully, clean the water
pipeline system, examine the water pump, and fasten all the
wire connections.
• Replacement parts must be genuine Emerald heat pump
components, and can not be replaced by other similar
accessories.
2. Refrigerant filling
Check the refrigerant filling status by reading the liquid level data on
the display screen, as well as the air suction and exhaust pressure.
If there is a refrigerant leakage or if components in the refrigeration
circulation system need to be replaced, conduct an air tightness
examination as the first step.
3. Leak detection and air tightness experiment
When conducting leak detection and air tightness testing, never
introduce oxygen, ethane, or any other flammable or harmful gases
into the refrigeration system. Instead, use compressed air, fluoride,
or refrigerant for these tests.
4. To remove the compressor, please follow the following steps
• Turn o the power supply
• Gradually release the refrigerant from the low-pressure end,
taking care to reduce the exhaust speed to prevent frozen oil
leakage.
• Disconnect the compressor's air suction and exhaust pipes.
• Disconnect the compressor's power cables.
• Unscrew and remove the compressor fixing screws.
• Remove the compressor.
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