Panasonic CZ-ESWC2 Instrukcja Instalacji Pobierz pdf (Strona 73)

5-3. Insulating the Refrigerant Tubing

Tubing Insulation

Thermal insulation must be applied to all unit tubing,

●

including the distribution joint (purchased separately).

(Fig. 5-7)

* For gas tubing, the insulation material must be heat

resistant to 248°F or above. For other tubing, it must

be heat resistant to 176°F or above.

Insulation material thickness must be 25/64 in. or

greater.

If the conditions inside the ceiling exceed DB 86°F and

RH 70%, increase the thickness of the gas tubing

insulation material by 1 step.

CAUTION

If the exterior of the outdoor

unit valves has been ﬁ nished

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.

Taping the ﬂ are nuts

Wind the white insulation tape around the ﬂ are nuts at the

gas tube connections. Then cover up the tubing

connections with the ﬂ are insulator, and ﬁ ll the gap at the

union with the supplied black insulation tape. Finally,

fasten the insulator at both ends with the supplied vinyl

clamps. (Fig. 5-8)

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. 5-9)

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.

Two tubes arranged together

Liquid tubing

Gas tubing

Insulation

Three tubes arranged together

Liquid tubing

Gas tubing

Insulation

Cosmetic

(ﬁ nishing) tape

Balance tubing

Three tubes arranged together

Suction tubing

Discharge tubing

Cosmetic

(ﬁ nishing) tape

Balance tubing

Liquid tubing

Insulation

Fig. 5-7

Sealer (supplied)

Insulation tape (white)

(supplied)

Flare insulator (supplied)

Unit side

insulator

Flare nut

Vinyl clamps (supplied)

Tube insulator

(not supplied)

Heat resistant

248°F or above

Fig. 5-8

Refrigerant tubing and insulator

(not supplied)

Drain pipe and insulator

(not supplied)

Insulation

tape

Flare

insulator

Seal

The procedure used for

installing the insulator

for both gas and liquid

tubes are the same.

Drain insulator

and clamp.

Large

(supplied)

Vinyl

clamp

Packing

clamp.

Small

hose

band

(supplied)

Fig. 5-9

Never grasp the drain or refrigerant connecting outlets

when moving the unit.

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