INSTALLING THE AIR CONDTIONER
Cutting or Extending the Pipe
A 24.6ft (7.5m) pipe is supplied with the air conditioner. (optional) The length of the pipe can be:
Extended up to “A”
Shortened as required
If you need a pipe longer than 24.6ft (7.5m):
You must extend the assembly cable.
For further details on how much refrigerant(R410A) should be added, refer to Page 13.
1 Make sure that you have the required tools (pipe cutter, reamer, flaring tool and pipe holder.)
ENGLISH
Model | “A” | |
AQV09J | 49.2ft(15m) | |
AQV12J | ||
| ||
AQV18J | 98.4ft(30m) | |
AQV24J | ||
|
2If you want to shorten the pipe, cut it using a pipe cutter, ensuring that the cut edge remains at 90° with the side of the pipe (see examples of correctly and incorrectly cut edges below.)
Oblique | Rough | Burr |
3To prevent a gas leak, remove all burrs at the cut edge of the pipe using a reamer.
4Put a flare nut slightly into the pipe and modify the flare.
Outer Diameter (D) | Depth (A) |
1/4 inch (6.35mm) | 0.05 inch (1.3mm) |
3/8 inch (9.52mm) | 0.07 inch (1.8mm) |
1/2 inch (12.80mm) | 0.08 inch (2.0mm) |
5/8 inch (15.88mm) | 0.09 inch (2.2mm) |
5Check if you flared the pipe correctly (see examples of incorrectly flared pipes below.)
Inclined | Damaged Surface | Cracked | Uneven Thickness |
6Align the pipes to connect them easily. Tighten the flare nuts first with your hands, and then with a torque wrench, applying the following torque:
Outer Diameter | Torque |
1/4 inch (6.35mm) 3/8 inch (9.52mm) 1/2 inch (12.80mm) 5/8 inch (15.88mm)
10.1~12.3ft•lb (140~170 kgf•cm) 18.1~20.3ft•lb (250~280 kgf•cm) 27.5~30.4ft•lb (380~420 kgf•cm) 31.8~34.7ft•lb (440~480 kgf•cm)
7For further details on how to connect to the outdoor unit and purge the air, refer to page 13.
