PIPING INSULATION
Liquid and suction lines must be insulated separately. In a cooling only type air conditioner, both pipes become cold during operation. This can cause moisture to condense on the surface of the pipes, resulting in heat loss.
Insulation
Narrow Pipe
Wide Pipe
Common insulation
Separate insulation is essential
PRECAUTIONS WHEN BENDING PIPES
!The air conditioner's performance will suffer if the piping is crushed.
!Bend pipes using the pads of your thumbs to prevent them from collapsing (See picture on the right.)
!Use a pipe bending tool to bend pipe wider than 1/2" in diameter.
Bend with pads of thumbs
Pipe bending tool
b/a = 0.7 or more
FLARE FITTING CONNECTION. There are 3 piping rules:
(a) DRY: Never allow any water to get | (b) CLEAN: Never allow dirt, sand or other |
inside the piping. | foreign particles to get inside the piping. |
Cap
Cap
Keep cap attached until immediately before making piping connections.
Keep cap attached until immediately before making piping connections.
