Daikin VRV IV - 18.4.4 To Charge Refrigerant: Flow Chart

18 | Piping installation
Installer and user reference guide
97
RXMLQ8 + RXYLQ10~14T7Y1B*
VRV IV system air conditioner
4P543427-1A – 2020.10
18.4.4 To charge refrigerant: Flow chart
For more information, see "To charge refrigerant"[498].
Pre-charging refrigerant
Step 1
Calculate additional refrigerant charge amount: R (kg)
Refrigerant overcharge happened, recover
refrigerant to reach R=Q
Step 2
• Open valves C and B to the liquid line
• Execute pre-charging amount: Q (kg)
Step 3a
• Close valves C and B
• Charging is finished
• Fill in the amount on the additional
refrigerant charge label
• Go to test run
Step 3b
Close valves C and B
R=Q R>QR<Q
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