Installation Guide

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Outdoor Unit Installation
Refrigerant Piping Connection
6
NOTE ON PIPE LENGTH
The length of refrigerant piping will affect the performance and energy efficiency of the unit.
Nominal efficiency is tested on units with a pipe length of 16.5ft (5 meters).
Refer to the table below for specifications 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. Drop 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)
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. 6.1 for bad cut examples.
Oblique Rough Warped
Fig. 6.1
90°
Step 1: Cut pipes
When preparing refrigerant pipes, take extra care to
cut and flare them properly. This will ensure efficient
operation and minimize the need for future mainte-
nance.
1. Measure the distance between the indoor and
outdoor units.
6
Refrigerant Piping Connection
Connection Instructions
– Refrigerant Piping