Carrier 62MB, 62ME, 62MC, 62MD specifications Roof Curb 62M040 for Stand-Alone Applications

Set the Roof Curb — Fit the roof curb assembly by measuring across the corners of the curb to ensure a square fit. Set the roof curb over the roof opening. Level the curb by placing shims under the bottom flange of the curb. Secure the curb in place by welding or fastening the curb to the roof.

IMPORTANT: The ERV roof curb must be set in precisely the correct location relative to the rooftop roof curb for the transitions to connect properly. See Fig. 7-44 for location dimensions.

Install Ductwork — Ductwork will be installed in the roof curb for vertical, coupled applications. The duct will hang from the top of the curb.

NOTE: Ductwork must be installed before the rooftop unit is set in place.

NOTE: Ductwork must be installed before the ERV unit is set in place.

Refer to Fig. 2 and 3 to determine the duct size required. Provide field manufactured duct and place into the supply and return openings in the curb.

Install Gaskets — The ERV roof curbs come with a gasketing package to provide a seal between the ERV unit and the top perimeter of the roof curb. Install the gasket around the top perimeter of the curb and around the supply and return opening. (Some stand-alone curbs will not have duct open- ings.) Gasket strips must fit tightly together, leaving no gaps for leakage.

IMPORTANT: Gasket installation is critical for water integrity. Improperly installed gaskets can result in air or water leaks, leading to poor unit performance.

Install Roofing Materials — Insulate and add a cant strip to the roof curb. Follow suggested and acceptable roofing proce- dures for applying roofing materials. The roofing material should extend up to the wood nailer and be secured under the counter flashing. Follow all local, national, and industry roof- ing standards. Refer to Fig. 5 for roofing recommendations.

24.09

SUPPLY

10.81

22.94

RETURN

11.50

11.00

1.00 TYP. 4X

14.00

3.00 TYP. 4X

NOTES:

1.All dimensions are in inches.

2.Roof curb shipped unassembled.

Fig. 2 — Roof Curb — 62M040 for Stand-Alone Applications

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