Haier 2U18MS2VHB Installation Manual page 7

Step 3 - Refrigerant Line Connections
Connection Priority
The line sets are connected to the indoor
piping port connections labeled A thru up
to D. The connections are made with a flare
fitting. Flare nut fittings are included with
the unit.
Note: Start the connections at the lowest
port. Always size the lines to the require-
ment of the indoor unit. Use a line size
adapter if the required line size differs from
the port size on the outdoor unit.
If any ports are not used, they remain
capped. Unused ports should be near the
top of the outdoor unit connection mani-
fold. Remember, always start from bottom
to top.
INSTALLATION PAGE 7