Daikin VRV IV+ RXYTQ8U7YF User Manual

17 | Piping installation
Installer and user reference guide
85
RXYTQ
VRV IV+ heat pump for high ambient temperatures
4P561157-1B – 2021.11
17.4.4 To charge refrigerant: Flow chart
For more information, see "17.4.5To charge refrigerant"[486].
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
Continued on next page >>
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Daikin VRV IV+ RXYTQ8U7YF Specifications

General

Brand	Daikin
Model	VRV IV+ RXYTQ8U7YF
Category	Heat Pump
Language	English