Daikin VRV IV REYQ72TATJ Serie Mode D'emploi page 31

14.3. Method for adding refrigerant
14.3.1. Flow chart
Step 1
Calculate additional refrigerant charge amount: R (lbs. (kg))
Step 2+3
Close valves C and A
Open valve B to the liquid line
c r c r i o
Disconnect the manifold from the suction gas line and the high/low pressure
gas line
Step 4a
Close valve B
r i i fi i
Fill in the amount on the additional refrigerant
charge label
Go to test run
Step 6a
Push BS2 once: "888
Push BS2 for more than 5 seconds " 01
Depending on ambient conditions, the unit will decide to perform automatic
charging operation in heating or cooling mode.
o i o
3P362438-5N English
Refrigerant overcharge happened, recover
r ri r o r c
A: Automatic charge
( ot applicable in D AS system)
r r i io
A
B
C
Step 4b
Close valve B
Step 5
Open all outdoor unit stop valves
Step 6
Proceed with automatic or manual charge
Step 6b
c i fi i
Unit will start manual refrigerant charging operation.
Open valve A
Charge remaining amount of refrigerant P (lbs. (kg))
Close valve A
Push BS3 to stop manual charging
r i i fi i
Fill in the amount on the additional refrigerant charge label
Go to test run
B: Manual charge
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