Trane Performance Air Handlers Installationshandbuch PDF herunterladen (Seite 11)

Pre-Installation Requirements

CLCH-SVX07C-EN 11

• Confirm the roof curb or foundation of the mounting

platform is level and large enough to accommodate

the unit. Refer to the unit submittals for specific

dimensions.

• Provide adequate lighting for maintenance personnel

to perform maintenance duties.

• Provide permanent power outlets in close proximity to

the unit for installation and maintenance.

• Depending upon job requirements, the customer may

need to provide 120 Vac power to the unit controller.

Refer to submittals for more information. A dedicated

15-amp circuit is recommended.

• Wiring for the air handler must be provided by the

installer and must comply with all national and local

electrical codes.

• If the unit integral base frame ceiling suspension

provisions are not used, the installer/contractor must

provide a ceiling-suspended mounting frame

designed to support the length, width, and weight of

the entire air-handling unit. See “Ceiling Suspension”

on page 26 for more information.

• Rooftop curb-mounted units must be sealed tightly to

the curb. Use proper sealants and roof-to-curb sealing

techniques to prevent water and air leakage. Refer to

CLCH-SVN05A-EN Roof Curbs for Performance

Climate Changer™ Air Handlers Installation

Instructions.

Note: Preparation of the roof curb or pier mount and roof

openings should be completed prior to lifting the

unit to the roof.

Roof Curb Installation Checklist

See CLCH-SVN05A-EN Roof Curbs for Performance

Climate Changer™ Air Handlers Installation Instructions

for information on installing roof curbs.

It is recommended that the curb be installed directly on the

support members and fastened to the supports using tack

welds or other equivalent methods. Properly supported

decking should be installed inside the air handler section

of the curb when this method is used. See Figure 2.

1. Verify that the roof structure can adequately support

the combined weight of the unit and curb assembly.

2. Ensure that the selected installation location provides

sufficient service and operational clearances.

3. Remove any twist within the curb due to roof supports

and square the curb.

4. Level the curb.

5. Secure the curb to the roof support members.

6. Install 2-inch thick boards or rigid insulation around the

curb.

7. Install cant strips around the curb.

8. Bring field supplied roofing felt up to the top of the curb

nailing strips. Nail felt into place.

9. Install field supplied flashing under the lip of the curb

flanges and over the felt.

10. Apply sealant to the four corners.

11. Caulk all joints between the curb and the roof.

Attach the gasket material to the curb’s top flanges (entire

perimeter) and to the supply and return air duct opening

panel flanges.

NOTICE:

Microbial Growth!

The floor or foundation must be level and the

condensate drain at the proper height for proper coil

drainage and condensate flow. Standing water and wet

surfaces inside the equipment can become an

amplification site for microbial growth (mold), which

could cause odors and damage to the equipment and

building materials.

Figure 2. Cross section of typical curb installation on

new construction

Screw securing roof

felt to rigid insulation

or 2 x 10

Flashing

(field-supplied)

Roofing felt

(field-supplied)

4 x 4 cant

(field-supplied)

Roof deck Support channels

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 131 132

Kommentare zu diesen Handbüchern

Keine Kommentare

Trane Performance Air Handlers Installationshandbuch Seite 11

Kommentare zu diesen Handbüchern