Connecting Refrigerant Pipes; Refrigerant Piping Work - Mitsubishi Electric CITY MULTI PAC-AH001-1 Installation Manual

6. Connecting refrigerant pipes

6.1 Refrigerant piping work

This piping work must be done in accordance with the installation manuals for the outdoor and LEV Kit
Applications Guide.
• For constraints on pipe length and allowable difference of elevation, refer to the outdoor unit manual.
Cautions on Refrigerant Piping
• Be sure to use non-oxidative brazing for brazing to ensure that no foreign matter or moisture enter into
the pipe.
• Be sure to apply refrigerating machine oil over the flare connection seating surface and tighten the
connection using a double spanner.
• Provide a metal brace to support the refrigerant pipe so that no load is imparted to the indoor unit end
pipe. This metal brace should be provided 20 in [~50 cm] away from the indoor unit's flare connection.
WARNING
When installing and moving the unit, do not charge it with refrigerant other than the
refrigerant specified on the unit.
- Mixing of a different refrigerant, air, etc. may cause the refrigerant cycle to malfunction
and result in severe damage.
Specifications are subject to change without notice.
PAC-AH001-1
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