Indoor Installation Manual

Table Of Contents

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

ENGLISH