Insulating The Refrigerant Tubing - Technibel SDAFM76R5I Serie Manual Del Usuario

6-3. Insulating the Refrigerant Tubing

Tubing Insulation
G
Thermal insulation must be applied to all unit tub-
ing, including distribution joint (purchased sepa-
rately).
* For gas tubing, the insulation material must be
heat resistant to 120°C or above. For other tubing,
it must be heat resistant to 80°C or above.
Insulation material thickness must be 10 mm or
greater.
If the conditions inside the ceiling exceed DB 30°C
and RH 70%, increase the thickness of the gas
tubing insulation material by 1 step.
CAUTION
Taping the flare nuts
Wind the insulation tape around the flare nuts at the
wide tube connections. Then cover up the tubing con-
nections with the flare insulator, and fill the gap at the
union with the insulation tape. Finally, fasten the insu-
lator at both ends with the vinyl clamps. (Fig. 6-8)
Insulation material
The material used for insulation must have good insu-
lation characteristics, be easy to use, be age resis-
tant, and must not easily absorb moisture.
After a tube has been insulated, never try to bend
CAUTION
Never grasp the drain or refrigerant connecting
outlets when moving the unit.
If the exterior of the outdoor
unit valves has been finished
with a square duct covering,
make sure you allow suffi-
cient space to use the valves
and to allow the panels to be
attached and removed.
it into a narrow curve
because it can cause the
tube to break or crack.
Two tubes arranged together
Narrow tubing
Insulation
Three tubes arranged together
Narrow tubing
Insulation
Sealer
Unit side
insulator
Flare nut
16
Wide tubing
Cosmetic
(finishing) tape
Wide tubing
Balance tubing
Fig. 6-7
Insulation tape
Flare insulator
Tube insulator
Heat resistant
120°C or above
Vinyl clamps
Fig. 6-8