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12.1. Insulation
To avoid dew drops, provide sufficient anti-sweating insulation to the refrigerant and drain pipes. When us-
ing commercially available refrigerant pipes, be sure to cover with available insulating material with heat-
resistant temperature of more than 100 °C [212 °F] and thickness given below, on both liquid and gas
pipes. Insulate all indoor pipes with polyethylene insulation with a minimum density of 0.03 and a thickness
as specified in the table below.
Pipe size Insulation thickness
6.4 mm to 25.4 mm [1/4 to 1 in.] >10 mm [7/16 in.]
28.6 mm to 38.1 mm [1-1/8 to 1-1/2 in.] >15 mm [5/8 in.]
• If the unit is used on the highest story of a building and under high temperature and high humidity, it is
necessary to use thicker insulation than specified in the table above
• If there are customer’s specifications, please follow them
12.2. Piping size
Model
SVZ-KP•NA
12 18
Refrigerant pipe
Liquid pipe 6.35 mm [1/4]
Gas pipe 9.52 mm [3/8] 12.7 mm [1/2]
Drain Pipe O.D. 32 mm [1-1/4]
SVZ-KP12,18, 24, 30, 36NA
Specifications are subject to change without notice. 37 © 2022 Mitsubishi Electric US, Inc.
ENGLISH
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