Connecting The Piping - Panasonic WH-UD03JE5 Series Installation Manual

DISPOSAL OF OUTDOOR UNIT DRAIN WATER

•

When a Drain elbow

1

- the unit should be placed on a stand which is taller than 50 mm.

- cover the ø20mm holes with Rubber cap

- use a tray (fi eld supply) when necessary to dispose the outdoor unit drain water.

•

If the unit is used in an area where temperature falls below 0°C for 2 or 3 consecutive days, it is recommended not to use the Drain elbow 1

and Rubber cap 2 , for the drain water freezes and the fan will not rotate.

2

Rubber cap

WH-UD03JE5* and WH-UD05JE5*

3

CONNECTING THE PIPING TO OUTDOOR UNIT

Decide piping length and then cut by using pipe cutter. Remove burrs

from cut edge. Make fl are after inserting the fl are nut (locate at valve)

onto the copper pipe. Align center of piping to valves and then tighten

with torque wrench to the specifi ed torque as stated in the table.

Model

WH-UD03JE5* and

WH-UD05JE5*

WH-UD07JE5* and

WH-UD09JE5*

Please cut using pipe cutter and then remove the burrs.

1.

Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused.

2.

Turn the piping end down to avoid the metal powder entering the pipe.

3.

Please make fl are after inserting the fl are nut onto the copper pipes.

Point down

1. To cut

2. To remove burrs

8

is used, please ensure to follow below:

2

(refer to illustration below).

Drain elbow

x 7

Piping size (Torque)

Gas

Liquid

ø12.7mm (1/2")

ø6.35mm (1/4")

[55 N•m]

[18 N•m]

ø15.88mm (5/8")

ø6.35mm (1/4")

[65 N•m]

[18 N•m]

CUTTING AND FLARING THE PIPING

Pipe

Reamer

Bar

Clamp handle

3. To fl are

1

Rubber cap

WH-UD07JE5* and WH-UD09JE5*

Spanner or

Wrench

Be sure to use two spanners to tighten.

(If the nuts are overtightened, it may cause the fl ares to break or leak.)

Handle

0 – 0.5 mm

Bar

Yoke

Core

Copper pipe

Red arrow mark

Drain elbow

2

x 3

Torque

wrench

 Improper fl aring 

Inclined Surface

Cracked Uneven

damaged

When properly fl ared, the internal surface of the

fl are will evenly shine and be of even thickness.

Since the fl are part comes into contact with the

connections, carefully check the fl are fi nish.

1

thickness