External Factors; Checking Procedures - Daikin RXTA30B2V1B Service Manual

5 | Third party components

5.3 External factors

5.3.1 Checking procedures

To check the outdoor temperature
To check for objects that may block the airflow
Service manual
220
▪ Pipe expansion / flare making:
- Remove any burrs on the cut surface using the correct tool such as reamer or
scraper (note that excessive deburring can thin the pipe walls and cause
cracking of the pipe).
- Make sure the flare has the correct size (use a flare gauge).
- Make sure no particles remain in the piping.
- Apply just a drop of refrigerant oil on the inner surface of the flare.
- Make sure the flare connection is tightened with the correct torque (torque
values refer to installation manual).
▪ Brazing:
- Use the correct brazing tool.
- Use a phosphor copper filler metal (silver composition of 0 to 2%). Do not use
flux material.
- Flush the piping before brazing with nitrogen to avoid oxidation of the inside of
the copper tubes (nitrogen purity ≥99.99%).
1 The temperature ranges for the different operation modes of the unit can be
found in the databook on Business Portal.
INFORMATION
If the outdoor temperature is outside the range of operation, the unit may NOT
operate or may NOT deliver the required capacity.
Is the outdoor temperature within the
operating range?
Yes
No
1 Check for the presence of object(s) near the indoor unit that may block the
airflow. Remove the object(s) as needed.
Is the problem solved?
Yes
No
Action
Return to the troubleshooting of the
specific error and continue with the
next procedure.
Wait for the outdoor temperature to
return within the operating range.
Action
No further actions required.
Return to the troubleshooting of the
specific error and continue with the
next procedure.
RXTM-R+RXTP-R+ARXTP-R+RXTA-B+FTXTA30B2V1B(W)
(B)+FTXTM30+40R2V1B+FTXTP25+35M5V1B+ATXTP25+35M5V1B
R32 Optimized Heating 4 Split
ESIE21-12A – 2022.02