Installation manual

Page 24

Refrigerant Piping Connection

Note on Pipe Length

The length of refrigerant piping will affect the performance and energy ef�ciency of the unit. Nominal

ef�ciency is tested on units with a pipe length of 16.5ft (5 meters).

Refer to the table below for speci�cations on the maximum length and drop height of piping.

Maximum Length and Drop Height of Refrigerant Piping per Unit Model

Model Capacity (BTU/h) Max. Length (ft/m) Max. D rop Height (ft/m)

R410A Inverter Split Air

Conditioner

< 15,000 82ft (25) 33ft (10)

≥ 15,000 and < 24,000 98.5ft (30) 66ft (20)

≥ 24,000 and < 36,000 164ft (50) 82ft (25)

≥ 36,000 and ≤ 60,000 213ft (65) 98.5ft (30)

Connection Instructions –

Refrigerant Piping

Step 1: Cut pipes

When preparing refrigerant pipes, take extra care

to cut and �are them properly. This will ensure

ef�cient operation and minimize the need for

future maintenance.

1. Measure the distance between the indoor and

outdoor units.

2. Using a pipe cutter, cut the pipe a little longer

than the measured distance.

3. Make sure that the pipe is cut at a perfect 90°

angle. Refer to Fig. 5.1 for bad cut examples.

Oblique Rough Warped

90°

Fig. 5.1