Insulating The Refrigerant Tubing; Taping The Tubes - Sanyo Classic PAC i serie Einbauanleitung

7-3. Insulating the Refrigerant Tubing

Tubing Insulation
● Thermal insulation must be applied to all units tubing,
including distribution joint (purchased separately).
* 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.
Two tubes arranged together
Inter-unit
control wiring
CAUTION
If the exterior of the outdoor unit valves has been finished
with a square duct covering, make sure you allow sufficient
space to access the valves and to allow the panels to be
attached and removed.
Taping the fl are nuts
Wind the white insulation tape around the flare nuts at the gas
tube connections. Then cover up the tubing connections with
the flare insulator, and fill the gap at the union with the supplied
black insulation tape. Finally, fasten the insulator at both ends
with the supplied vinyl clamps. (Fig. 7-10)
Sealer (supplied)
Insulation tape (white) (supplied)
Unit side
insulator
Flare nut
Gas tube
Liquid tube
Armoring tape
Insulation
Flare insulator (supplied)
Tube insulator
(not supplied)
Heat resistant
120°C or above
Vinyl clamps (supplied)
Insulation material
The material used for insulation must have good insulation
characteristics, be easy to use, be age resistant, and must not
easily absorb moisture. (Fig. 7-11)
Drain insulator
and clamp.
Large (supplied)
Packing clamp.
Small
hose band
(supplied)
Fig. 7-9
CAUTION
After a tube has been insulated, never try to bend it into
a narrow curve because it can cause the tube to break or
crack.
Never grasp the drain or refrigerant connecting outlets
when moving the unit.

7-4. Taping the Tubes

(1) At this time, the refrigerant tubes (and electrical wiring
if local codes permit) should be taped together with
armoring tape in 1 bundle. To prevent condensation from
overflowing the drain pan, keep the drain hose separate
from the refrigerant tubing.
(2) Wrap the armoring tape from the bottom of the outdoor
unit to the top of the tubing where it enters the wall. As you
wrap the tubing, overlap half of each previous tape turn.
(3) Clamp the tubing bundle to the wall, using 1 clamp approx.
each meter. (Fig. 7-12)
Fig. 7-10
NOT E
Do not wind the armoring tape too tightly since this will
decrease the heat insulation effect. Also ensure that the
condensation drain hose splits away from the bundle and drips
clear of the unit and the tubing.
44
Refrigerant tubing and
insulator (not supplied)
Drain pipe and insulator
(not supplied)
Flare insulator
Seal
The procedure used for
installing the insulator for
both gas and liquid
tubes is the same.
Inter-unit
control wiring
Insulation
Insulation tape
Vinyl clamp
Fig. 7-11
Gas tube
Liquid tube
Armoring tape
Fig.7-12