Daikin VRV X RXQ6-48ANR Series, Руководство по обслуживанию

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SiME341909EA Servicing Items to be Confirmed
Part 6 Service Diagnosis 137
(4) Precautions for outdoor unit multi system
All the settings should be made in the master unit. Settings in the slave units are deemed
unavailable.
Differentiation of Master/Slave Units
1. The outdoor unit master unit is the unit which has the connecting wires to the indoor unit. All
the other units are slave units.
2. You may also differentiate the master/slave units by the 7-segment display.
(5) Precautions for piping work and refrigerant charging:
This unit uses R-410A refrigerant. Pay attention to the following conditions.
1. The charging pipe and the manifold tube use R-410A products for pressure maintenance
and avoiding contamination by impurities (SUNISO oil, etc.).
2. Be sure to purge with nitrogen when brazing.
 Properly perform airtightness test and vacuum drying. (Airtight test pressure: 4.0 MPa)
 Charge refrigerant in liquid state.
(6) Precautions for operating in servicing mode (field setting):
When a test operation is interrupted or after exiting service mode, please wait for at least one
minute before entering service mode again. In case of continuous execution, the outdoor unit
PCB may sometimes display an error code. If any error codes are displayed, press the
RETURN button (BS3). If performing the above operation still does not eliminate the error,
reconnect the unit to the power supply.
7-segment display
In normal mode, press the BS1 button once, and in
the confirmation mode, check if the 7-segment
display shows the code on the right.
SEG1 SEG2 SEG3
1. 0 0
Press the confirmation button (BS3)
to check for the master/slave units
Master 0
Slave 1 1
Slave 2 2