To Charge Refrigerant: Flow Chart - Daikin VRV IV RYYQ10T7Y1B Series Installation And Operation Manual

5 Installation
5.6.4

To charge refrigerant: Flow chart

For more information, see "5.6.5 To charge refrigerant" on
Pre-charging refrigerant
Step 1
Calculate additional refrigerant charge amount: R (kg)
Step 2+3
• Open valves C, D and B to the liquid and equalising line
• Charge the equalising line to maximally 0.05 MPa, then close valve C and
disconnect its connection to the manifold. Continue pre-charging through
the liquid line only
• Execute pre-charging amount: Q (kg)
R=Q
Step 4a
• Close valves D and B
• Charging is finished
• Fill in the amount on the additional
refrigerant charge label
• Input the additional refrigerant amount via
setting [2-14]
• Go to test run
Installation and operation manual
18
page 20.
N2
R<Q
Refrigerant overcharge happened, recover
refrigerant to reach R=Q
p < p >
A B
D
R410A
C
Step 4b
Close valves D and B
Continued on next page >>
RYYQ+RYMQ+RXYQ8~20T7Y1B
VRV IV system air conditioner
R>Q
4P370473-1C – 2016.07