7 | Piping installation
Installer reference guide
35
FTXTP-M_FTXTP-N
Daikin room air conditioner
4P728168-4 – 2023.03
3 Check for refrigerant leaks after charging (see below).
Tightness test of field-made refrigerant joints indoors
1 Use a leakage test method with a minimum sensitivity of 5 g of refrigerant/
year. Test leaks using a pressure of at least 0.25 times the maximum working
pressure (see "PS High" on the unit nameplate).
If a leak is detected
1 Recover the refrigerant, repair the joint, and repeat the test.
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