Carrier 50JS Specifications download pdf (Page 6)

Roof Curb for Small Cabinet

Note A: When unit mounting screw is used,

retainer bracket must also be used.

VAC unrl

base "_

_ _(NOTE A) _

supplied _

Ir_ulaUon (field

Roofir_ material supplied)

field suPPlied m

eu_i work

_Cant strip field supplied

field su_l_d

Roof Curb for Large Cabinet

Note A: Whenunitmounting screwis used,

retainerbracketmustalsobe used.

R/A S/A

Insulated Gasket around

deck pan outer edge

UNIT SIZE

50JS018-042 50JX024-036

50JS048-060 50JX042-060

NOTES:

ODS CATALOG NUMBER

CPRFCURB006A00

CPRFCURS007A00

CPRFCURB008A00

CPRFCURB009A00

IN. (MM)

8 (203)

14 (386)

8 (203)

14 (356)

IN. (MM)

11 (279)

16 3/16 (411)

IN. (MM)

161/2 (419)

17 3/8 (441)

C00076

IN. (MM)

28-3/4 (730)

40-1/4 (1022)

1. Roof curb must be set up for unit being installed.

2. Seal strip must be applied, as requiRd, to unit being installed.

3. Dimensions in ( ) are in millimeters.

4. Roof curb is made of 16-gage steel.

5. Table lists only the dimensions, per part number, that have changed.

6. Attach ductwork to curb (flanges of duct rest on curb).

7. Insulated panels: t-in. thick fiberglass 1 Ib density.

8. Dimensions are in inches.

9. When unit mounting screw is used (see Note A, a retainer bracket must be used as well• This bracket must also be used when required by code for hurricane or

seismic conditions. This bracket is available through MicrornetL

Fig. 5_Roof Curb Dimensions

4. Ensure the side duct covers are in place to block off the

horizontal air openings.

NOTE: Avoid abrupt duct size increases and reductions. Abrupt

change in duct size adversely affects air pedormance.

Step C0---Provide for Condensate Disposal

NOTE: Ensure that condensate-water disposal methods comply

with local codes, restrictions, and practices.

The units dispose of condensate through a 3/4 in. NPT female

fitting that exits on the compressor end of the unit. Condensate

water can be drained directly onto the roof in rooftop installations

(where permitted) or onto a gravel apron in ground level installa-

tions. Install a field-supplied condensate trap at end of condensate

connection to ensure proper drainage. Make sure that the outlet of

the trap is at least 1 in. lower than the drain-pan condensate

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Carrier 50JS Specifications Page 6

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