Neoclima NS-12 - Инструкция по эксплуатации - Страница 71

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 Page 32

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Refrigerant piping

Connection

2. 

Tighten the flare nut as tightly as possible by 

hand.

3. 

Using a spanner, grip the nut on the unit 

tubing.

4. 

While firmly gripping the nut on the unit 

tubing, use a torque wrench to tighten the 

flare nut according to the torque values in the 

Torque Requirements 

table below. Loosen 

the flaring nut slightly, then tighten again.

Instructions for Connecting Piping to Outdoor Unit

USE SPANNER TO GRIP MAIN 
BODY OF VALVE

Torque from tightening the flare nut can snap 

off other parts of valve. 

TORQUE REQUIREMENTS

Outer Diameter of Pipe
 (mm)

Tightening Torque

 (N•m)

Flare dimension(B)
 (mm)

Flare shape
 

Ø 6.35 (Ø 0.25”)

8.4~8.7 (0.33~0.34”)

13.2~13.5 (0.52~0.53”)

16.2~16.5 (0.64~0.65”)

19.2~19.7 (0.76~0.78”)

23.2~23.7 (0.91~0.93”)

18~20(180~200kgf.cm)

32~39(320~390kgf.cm)

49~59(490~590kgf.cm)

57~71(570~710kgf.cm)

67~101(670~1010kgf.cm)

Ø 9.52 (Ø 0.375”)

Ø 12.7 (Ø 0.5”)

Ø 16 ( Ø 0.63”)

Ø 19 ( Ø 0.75”)

1. 

Unscrew the cover from the packed valve on 

the side of the outdoor unit.

2. 

Remove protective caps from ends of valves.

3. 

Align flared pipe end with each valve, and 

tighten the flare nut as tightly as possible by 

hand.

4. 

Using a spanner, grip the body of the valve. 

Do not grip the nut that seals the service 

valve. 

5. 

While firmly gripping the body of the valve, 

use a torque wrench to tighten the flare nut 

according to the correct torque values.

6. 

Loosen the flaring nut slightly, then tighten 

again.

7. 

Repeat Steps 3 to 6 for the remaining pipe.

 DO NOT USE EXCESSIVE TORQUE

Excessive force can break the nut or damage the refrigerant piping. You must not exceed  

torque requirements shown in the table above.

Valve cover

R0.4~0. 8

45

°±

2

90

°      

±

4

B