23
CONNECTING REFRIGERANT PIPING LINES (Cont.)
16-2 INSTRUCTIONS OF CONNECTIING REFRIGERANT PIPING LINES
Avoid excessive height difference between indoor
and outdoor units.
Keep the height difference to a strict minimum to
avoid alteration on system cooling and heating
performance.
Avoid excessive length of refrigerant piping lines
between indoor and outdoor units.
Keep the height difference to a strict minimum to
avoid alteration on system cooling and heating
performance.
Avoid excessive number of turns and bends in
refrigerant piping lines during connections with
both the indoor and outdoor units.
Keep the number of turns and bends to a strict
minimum to avoid alteration on system cooling
and heating performance.
Piping must be performed by qualified installer
according to good refrigeration systems
practices.
Piping materials and insulation materials must be
of refrigerant quality.
-
Select the pipe diameters to the size of system to
be installed.
-
All bends must be considered when connecting
indoor unit with outdoor unit by required length
of refrigerant piping lines.
-
Do not remove the protective caps from the
couplings until the refrigerant piping lines are
ready for connection with both indoor and outdoor
units. This is to keep piping clean.
-
The installer must carefully unroll the tubing and run
it between the indoor and outdoor units.
●
Do not bend the pipe more than three times at
one place.
●
When extending the rolled pipe, straighten the
pipe by unwinding it.
When forming the pipe. Be careful not to crush it.
-
Avoid pipes flattering or kinking.
-
The minimum radius of bending must not be less
than 100 mm to avoid damage of piping.
When making a bend, the installer cuts insulation
and slides it away from the bend area. Using a
tube bender makes the bend and then the
insulation is replaced gluing it together.
Not
Recommended
Recommended
Copper
Piping
Insulation
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