To Charge Refrigerant: Flow Chart - Daikin VRV IV+ RXYTQ8U5/U7YF Installation And Operation Manual

14.4.4

To charge refrigerant: Flow chart

For more information, see "14.4.5 To charge
Pre-charging refrigerant
Step 1
Calculate additional refrigerant charge amount: R (kg)
Step 2
• Open valves C and B to the liquid line
• Execute pre-charging amount: Q (kg)
R=Q
Step 3a
• Close valves C and B
• Charging is finished
• Fill in the amount on the additional
refrigerant charge label
• Go to test run
RXYTQ
VRV IV+ heat pump for high ambient temperatures
4P546223-1C – 2021.11
refrigerant" [ 4 24].
R<Q
Refrigerant overcharge happened, recover
refrigerant to reach R=Q
14 Piping installation
p < p >
A B
C
N2 R410A
Step 3b
Close valves C and B
Continued on next page >>
R>Q
Installation and operation manual
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