Charging The Remaining Refrigerant - Huawei FusionCol8000-E400 User Manual

FusionCol8000-E400 Modular Indirect Evaporative
Cooling System
User Manual
If the R410A refrigerant is configured, put the refrigerant cylinder upside down
when charging refrigerant. If you purchase the R410A refrigerant by yourself,
confirm with the agent whether the cylinder is equipped with a siphon. If the
cylinder has a siphon, stand the cylinder when charging refrigerant. If not, put the
cylinder upside down when charging refrigerant. These measures ensure that the
refrigerant is charged in the liquid state.
Step 4 Open all pressure gauge valves and the refrigerant cylinder valve to charge
refrigerant.
Do not move the hose or refrigerant cylinder when charging refrigerant.
Otherwise, the reading on the electronic balance will be affected.
Step 5 The precharge amount must be less than or equal to the total charge amount. If
total refrigerant amount cannot be fully precharged, charge the remaining
refrigerant during power-on commissioning.
Step 6 After the refrigerant is charged, close all pressure gauge valves and the refrigerant
cylinder valve.
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9.6.6 Charging the Remaining Refrigerant

Prerequisites
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Procedure
Step 1 Tap Start on the home screen.
Step 2 Choose Maint > Diagnostic > Enter to enter the diagnostic mode.
Step 3 Change the compressor rotational speed to 3000 rpm.
Step 4 Open the low pressure valve of the pressure gauge, and charge the remaining
refrigerant from the low pressure needle valve in small flow or intermittently.
Issue 04 (2022-06-30)
NO TICE
NO TICE
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Tighten the needle valve bonnets when the charge is complete. Check whether a needle
valve leaks by applying soap bubbles to the valve vent or using a halogen leak detector. If it
leaks, contact Huawei technical support.
Before starting the compressor, ensure that the unit switch is turned on.
Remove the refrigerant cylinder after ensuring that no more refrigerant needs
to be charged.
Charge refrigerant in an amount exactly as standard charge required.
Otherwise, the device may be damaged.
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