Fujitsu 30RLXEH 설치 매뉴얼 - 페이지 11

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(2) After connecting the wires, use cable clips to secure the wires. (Fig. B)

• Connect the wires without applying excessive tension.

Fig. B

Terminal blocks

INDOOR UNIT

Connection cable

(indoor unit and

outdoor unit

connection cable)

(3) Secure the cables using the cable clips under the terminal blocks, and then secure

the cables using the cable clips attached to the base of the valves.

(4) Be sure to install the insulation sheet after the wiring is complete.

Terminal nameplate

3 L1 L2

INDOOR UNIT

POWER

Power supply cable

Cable clip

7. PIPE INSTALLATION-2

Install the insulated pipes so that they do not touch the compressor.

7.1. Installing insulation

• Use an insulation on the refrigerant pipes to prevent condensation and dripping.

(Fig. A)

• Determine the thickness of the insulation material by referring to Table A.

Table A, Selection of insulation

(for using an insulation material with equal heat transmission rate or below

0.040 W/(m·k))

Relative humidity

[in. (mm)]

1/4 (6.35)

3/8 (9.52)

Pipe

diameter

1/2 (12.70)

5/8 (15.88)

If the ambient temperature and relative humidity exceed 89 °F (32 °C), increase the level

of heat insulation for the refrigerant pipes.

7.2. Filling with putty

Fill the piping holes with putty (supplied locally) to avoid any gap (Fig A). If small animals

such as insects enter the external unit, a short circuit may be caused near electrical

components in the service panel.

If the outdoor unit is installed at a level that is higher than the indoor unit, the water that

has condensed in the 3-way valve of the outdoor unit could travel to the indoor unit.

Therefore, use putty in the space between the pipe and the insulation to prevent the entry

of water.

Fig. A

Putty

WARNING

Insulation material

Minimum thickness [in. (mm)]

70%

75%

80%

or more

5/16 (8)

13/32 (10)

16/32 (13)

21/32 (17)

11/32 (9)

7/16 (11)

18/32 (14)

23/32 (18)

13/32 (10)

15/32 (12)

19/32 (15)

13/32 (10)

15/32 (12)

5/8 (16)

25/32 (20)

WARNING

Insulation

85%

or more

3/4 (19)

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