![background image](http://html1.mh-extra.com/html/daikin/rxyq10t7y1b/rxyq10t7y1b_installation-and-operation-manual_2459960018.webp)
5 Installation
Installation and operation manual
18
RYYQ+RYMQ+RXYQ8~20T7Y1B
VRV IV system air conditioner
4P370473-1C – 2016.07
5.6.4
To charge refrigerant: Flow chart
For more information, see
"5.6.5 To charge refrigerant" on page 20
Pre-charging refrigerant
Step 1
Calculate additional refrigerant charge amount: R (kg)
Refrigerant overcharge happened, recover
refrigerant to reach R=Q
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)
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
Step 4b
Close valves D and B
R=Q
R>Q
R<Q
Continued on next page >>
p< p>
R410A
N2
C
D
A
B
Summary of Contents for RXYQ10T7Y1B
Page 43: ......
Page 44: ...4P370473 1 C 0000000 4P370473 1C 2016 07 Copyright 2014 Daikin...