To Connect The Refrigerant Piping To The Indoor Unit; Checking The Refrigerant Piping; About Checking The Refrigerant Piping - Daikin Altherma 3 R MT F Series Installer's Reference Manual

8 | Piping installation

8.2.9 To connect the refrigerant piping to the indoor unit

8.3 Checking the refrigerant piping

8.3.1 About checking the refrigerant piping

Installer reference guide
90
WARNING
Provide adequate measures to prevent that the unit can be used as a shelter by small
animals. Small animals that make contact with electrical parts can cause
malfunctions, smoke or fire.
NOTICE
Make sure to open the stop valves after installing the refrigerant piping and
performing vacuum drying. Running the system with the stop valves closed may
break the compressor.
1 Connect the liquid stop valve from the outdoor unit to the refrigerant liquid
connection of the indoor unit.
a b
a Refrigerant liquid connection
b Refrigerant gas connection
2 Connect the gas stop valve from the outdoor unit to the refrigerant gas
connection of the indoor unit.
NOTICE
It is recommended that the refrigerant piping between indoor and outdoor unit is
installed in a ducting or the refrigerant piping is wrapped with finishing tape.
The outdoor unit's internal refrigerant piping has been factory tested for leaks. You
only have to check the outdoor unit's external refrigerant piping.
ERRA08~12E + ELVZ12S18+23E
Daikin Altherma 3 R MT F
4P708478-1 – 2023.05