Installation Manual

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Refrigerant Piping Connections

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REFRIGERANT PIPING CONNECTIONS

Installation Overview

Figure 31: Installation and Piping Connection Overview (Appearances Will Vary

Depending on Model).

Installation

Single Zone Wall-Mounted systems are one-to-one

systems. There is a direct piping connection between the

outdoor unit and the indoor unit. The figure at right illus-

trates the basic pipe connections between the outdoor

and indoor unit. Refer to the illustration when proceeding

with pipe connections.

This illustration shows the indoor unit being installed at

a higher position than the outdoor unit. However, if the

outdoor unit be installed at a higher position than the

indoor unit, the basic pipe connections are the same.

Refer back to the tables within the “Connection Limita-

tions” section for specific length limitations in conjunction

with outdoor unit and indoor unit positioning.

• When proceeding with piping connections, adhere to

pipe support spacing lengths as shown in the “General

Refrigerant Piping System” Information section. Refer

to the “Pipe Supports” section for information on using

clamps and pipe support materials.

• Always adhere to local codes regarding piping and ac-

curate support spacing along the piping system.

• Always include insulation on all refrigerant and drain

piping to ensure condensate does not form and cause

damage to walls, floors, etc.

Bend the piping as closely

to the wall as possible, but do not break it.

Installation Plate

Air Filter

Bottom Cover

Vapor (Gas)

Pipe (Larger Pipe)

Liquid Pipe (Smaller Pipe)

Drain Hose

Power Wiring /

Communication (Connection) Cable

Vapor (Gas) Service Valve

Liquid Service Valve

(Vapor [Gas] / Liquid) Service Valve Caps

System refrigerant piping, drain hose extensions, and power wiring / communications cables

must be field supplied.

Field-Supplied Sleeve

Field-Supplied Sealant

Field-Supplied Clamp

Wiring Cable Access Holes