9
RefRIgeRAnT pIpIng
figure 6 - Remove bottom panel
piping preparation
• Avoid piping on wet and rainy days.
• Use only clean, refrigeration-grade copper tubing.
• Use tubing benders to guard against kinking.
• verify no burrs remain on fittings.
• Cap ends of lines until ready for connections. verify
plastic end caps remain in place when inserting through
wall openings.
• Insulate both lines.
• Isolate tubing from transmitting vibration to building or
unit and avoid contact with sharp edges.
• Wrap refrigeration valves with wet rag “heat sink” to
protect valves while brazing. See Figure 9, Page 10
• DO NOT use suction line size larger than condenser
service valve connection. This can harm compressor.
Install reducer, when used, only at air handler
connection.
• Mount and level per instructions. See “Unit Mounting
Considerations” on page 8
.
• leave left end cap off of unit to allow removal of bottom
panel.
• Remove screws on unit bottom. Remove bottom panel.
See
Figure 6
.
figure 7 - piping Connections
Suction line
(When a reducing bushing is required, install
only here, at the indoor suction-line connection.)
Liquid line
Condensate drain
