Trane Performance Air Handlers Installationshandbuch PDF herunterladen (Seite 46)

46 CAH-SVX01B-EN

Installation - Mechanical

Duct Connections

All duct connections to the units should be installed in accordance with the standards of the

National Fire Protection Association (NFPA) for selecting and installing of air conditioning and

ventilating systems other than residence type (NFPA 90A), and residence type warm air heating and

air conditioning systems (NFPA 90B).

To ensure the highest fan efficiency, duct turns and transitions must be made carefully, minimizing

air friction losses and turbulence. Proper duct work installation by such organizations as SMACNA

(Sheet Metal and Air Conditioning Contractors National Association, Inc.) should be adhered to.

Bottom Opening Duct Installation

1. Install gasket to duct flange to ensure air tight seal.

2. Install duct into place underneath framed opening in unit base per Figure 40. Refer to factory

curb layout provided with unit submittals for duct size and location.

Figure 40. Field-supplied duct connection to AHU bottom supply/return air opening

Bottom

supply/return

airflow

Trane AHU

base (typical)

Field-supplied

rigid duct

Trane AHU

base (typical)

Field-supplied

rigid duct

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Trane Performance Air Handlers Installationshandbuch Seite 46