Bedienungsanleitung Inventor V6MKI32-WiFi (Seite 22 von 140) (Deutsch, Englisch)

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CAUTION

• Ensure to wrap insulation around the piping.

Direct contact with the bare piping may result

in burns or frostbite.

• Make sure the pipe is properly connected. Over

tightening may damage the bell mouth and

under tightening may lead to leakage.

CAUTION

Check to make sure there is no refrigerant leak

after completing the installation work. If there

is a refrigerant leak, ventilate the area immedi-

ately and evacuate the system (refer to the Air

Evacuation section of this manual).

6. Place flaring tool onto the form.

7. Turn the handle of the flaring tool clock-

wise until the pipe is fully flared. Flare the

pipe in accordance with the dimensions

shown in table 7.3.

8. Remove the flaring tool and flare form,

then inspect the end of the pipe for cracks

and even flaring.

Step 4: Connect pipes

Connect the copper pipes to the indoor unit

first, then connect it to the outdoor unit. You

should first connect the low-pressure pipe,

then the high-pressure pipe.

1. When connecting the flare nuts, apply a

thin coat of refrigeration oil to the flared

ends of the pipes.

2. Align the center of the two pipes that you

will connect.

6. After connecting the copper pipes to the in-

door unit, wrap the power cable, signal cable

and the piping together with binding tape.

7. Thread this pipeline through the wall and

connect it to the outdoor unit.

8. Insulate all the piping, including the valves

of the outdoor unit.

9. Open the stop valves of the outdoor unit

to start the flow of the refrigerant between

the indoor and outdoor unit.

3. Tighten the flare nut as tightly as possible

by hand.

4. Using a spanner, grip the nut on the unit

tubing.

5. While firmly gripping the nut, use a torque

wrench to tighten the flare nut according

to the torque values in table 7.5.

90°± 4

R0.4~0.8

45°± 2

Indoor unit tubing

min-radius 10cm (3.9”)

Bend the pipe with thumb

Flare nut Pipe

Table 7.3: PIPING EXTENSION BEYOND FLARE

FORM

Pipe

gauge

Tightening

torque

Flare dimension (A)

(Unit: mm/inch) Flare shape

Min. Max.

Ø 6.4 18-20 N.m

(183-204 kgf.cm) 8.4/0.33 8.7/0.34

Ø 9.5 25-26 N.m

(255-265 kgf.cm) 13.2/0.52 13.5/0.53

Ø 12.7 35-36 N.m

(357-367 kgf.cm) 16.2/0.64 16.5/0.65

Ø 15.9 45-47 N.m

(459-480 kgf.cm) 19.2/0.76 19.7/0.78

Ø 19.1 65-67 N.m

(663-683 kgf.cm) 23.2/0.91 23.7/0.93

Ø 22 75-85N.m

(765-867 kgf.cm) 26.4/1.04 26.9/1.06

Fig. 7.8

Fig. 7.9

Fig. 7.10

Fig. 7.11

NOTE: Use both a spanner and a torque

wrench when connecting or disconnecting

pipes to/from the unit.

NOTE: DO NOT intertwine signal cable with

other wires. While bundling these items to-

gether, do not intertwine or cross the signal

cable with any other wiring.

NOTE ON MINIMUM BEND RADIUS

Carefully bend the tubing in the middle ac-

cording to the diagram below. DO NOT bend

the tubing more than 90° or more than 3

times.

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