Panasonic CS-F43DD3E5 [61/148] Connecting the pipes

Panasonic CS-F43DD3E5 [61/148] Connecting the pipes

• If a drain pipe needs to be installed, insert the accessory drain elbow into the mounting hole at the bottom of the outdoor unit,

and connect a hose with an inside diameter of 15mm to this drain elbow.

(The hose is not supplied.)

If using the drain elbow, install the outdoor unit on a base which is at least 5cm high.

NOTE In cold regions (where the outdoor air temperature can drop to 0°C or below continuously for 2-3 days), the drain water may freeze,

and this may prevent the fan from operating. Do not use the drain elbow in such cases.

10.4.6. Connecting the pipes

• Use a clean pipe which does not include water or dust for inside of piping.

• When cutting the refrigerant pipes, a piping cutter must be used. Before connecting the refrigerant pipes, blow nitrogen and

blow off dust in the pipes.

(Never use tools which cause a lot of dust such as a saw and a magnet.)

• When waxing replace nitrogen inside the piping after removing dirt and dust. (In order to prevent oxidation scale from forming

inside the piping).

• The refrigerant pipes are of particular importance.

The installation work for refrigerant cycles in separate-type air conditioners must be carried out perfectly.

1. Refer to the table below for the pipe diameters equivalent lengths and indoor/outdoor unit difference of elevation.

Pipe diameter (mm) Equivalent length (m) Difference of elevation (m)

Liquid-side pipes Gas-side pipes

ø9.52 x t1.0 ø15.88 x t1.2 50 30

2. Local pipes can project in any of four directions.

• Make holes in the pipe panels for the pipes to pass through.

• Be sure to install the pipe panels to prevent rain from getting inside the outdoor unit.

[Removing the service panel].

(1)

(2)

Remove the two mounting screws.

Slide the service panel downward to release the pawls. After this, pull the

service panel toward you to remove it.

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