Panasonic S-15MK2E5B Installation Instructions Manual page 44

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Gas Leakage Detector
Note that the gas leakage detector should be capable of detecting the refrigerant R410A, R32.
Air Purging
Refer to "AIR PURGING" in the separate Installation Instructions for the outdoor unit in regard to
air purging with a vacuum pump (for test run) preparation.
Taping the flare nuts
Cover up the tubing connections with the supplied flare insulator. Then fasten the insulator at
both ends with the vinyl clamps (field supply).
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.
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If noise bothers you from the area between indoor and outdoor units' connection pipes, it is
effective to wind the soundproofing materials (field supply) to reduce noise.
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.
5-4. 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.
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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.
5-5. Finishing the Installation
After finishing insulating and taping over the tubing, use sealing putty
to seal off the hole in the wall to prevent rain and draft from entering.
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Clamp
Insulated tubes Drain hose
Apply putty here
Tubing