
CAH-SVX01B-EN 43
Installation - Mechanical
7. Units will have field installed flashing. Remove upper unit lifting lugs, in order to install flashing
between the upper and lower unit.
– Parts are number matched to the unit. Each piece of flashing will be identified with a unit
section number in which it applies.
– Top edge of flashing will be placed behind upper unit base rail flange and fastened to lower
unit perimeter cap.
– Use #10 screws to install flashing.
– For external/outdoor units caulk the corners and top edge of the flashing.
Pipe Cabinet Installation
1. After air handler is completely installed and checked for accuracy of level and square, pipe
cabinet install can begin.
2. Remove bolts holding the lifting lugs in place from the base of the air handler.
3. Check to ensure that the structure the pipe cabinet is to be installed on is square and level.
4. Install 3/16-inch x 1. 25-inch grey ribbed butyl tape to flanged side of pipe cabinet wall and
remove paper backing from tape. See Figure 37.
Figure 37. Pipe cabinet installation
Butyl Tape
Hood
Butyl Tape
Pipe Cabinet
Roof Curb
Unit Base Rail
Mounting
Channel
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