Trane Performance Air Handlers Installationshandbuch PDF herunterladen (Seite 13)

CLCH-SVN05A-EN 13

Assembly and Installation

Pipe Cabinet Roof Curbs

Pipe cabinets ordered from Trane for field installation require special attention with regard to

joining the unit roof curb and pipe cabinet roof curb. A good joint will prevent any water

management problems within the pipe cabinet.

The pipe cabinet roof curb should be three-sided and have dimensions as shown in Figure 16, a

top view of the pipe cabinet roof curb, and Tab le 2. Dimension ‘L’ is from the outside of the unit roof

curb to the outside of the pipe cabinet roof curb. Dimension ‘X’ is the outside-to-outside width

dimension of the pipe cabinet roof curb. Dimension ‘Z’ locates the pipe chase roof curb along the

unit roof curb in the direction of airflow. This measurement is from the outside of the unit roof curb

to the outside of the pipe cabinet roof curb.

The basic formula becomes Z = LDS – 1, where LDS is the total length of the sections downstream

of the pipe cabinet.

Figure 16. Top view of unit and pipe cabinet roof curb Table 2. Pipe cabinet roof curb dimensions

Unit size

L dimension

Reduced Standard Extended

3 - 50 26.00 38.00 50.00

57-120 26.50 38.50 50.50

Unit sizes 3-120 X dimension

Reduced Lp + 3

Standard Lp + 3

Extended Lp + 3

Note: Lp is the sum of the section length(s) covered by the

pipe cabinet. Refer to submittal.

Unit roof curb

Pipe chase

roof curb

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Trane Performance Air Handlers Installationshandbuch Seite 13