RT-SVX063G-EN
27
Installation
Roof Curb and Ductwork
The roof curbs consist of two main components: a pedestal
to support the unit condenser section and a “full perimeter”
enclosure to support the unit’s air handler section.
Before installing any roof curb, verify the following:
•
It is the correct curb for the unit.
•
It includes the necessary gaskets and hardware.
•
The purposed installation location provides the required
clearance for proper operation.
•
The curb is level and square — the top surface of the
curb must be true to assure an adequate curb-to-unit
seal.
Step-by-step curb assembly and installation instructions
ship with each Trane accessory roof curb kit. Follow the
instructions carefully to assure proper fit-up when the unit is
set into place.
Note:
To assure proper condensate flow during operation,
the unit (and curb) must be as level as possible. The
maximum slope allowable for rooftop unit
applications is 4" end-to-end and 2" side-to-side.
If the unit is elevated, a field constructed catwalk around
the unit is strongly recommended to provide easy access
for unit maintenance and service. Recommendations for
installing the Supply Air and Return Air ductwork joining the
roof curb are included in the curb instruction booklet. Curb
ductwork must be fabricated and installed by the installing
contractor before the unit is set into place.
Note:
For sound consideration, cut only the holes in the
roof deck for the ductwork penetrations. Do not cut
out the entire roof deck within the curb perimeter.
Unit Rigging and Placement
WARNING
Heavy Object!
Failure to follow instructions below could result in
unit dropping which could result in death or serious
injury, and equipment or property-only damage.
Ensure that all the lifting equipment used is properly
rated for the weight of the unit being lifted. Each of the
cables (chains or slings), hooks, and shackles used to
lift the unit must be capable of supporting the entire
weight of the unit. Lifting cables (chains or slings)
may not be of the same length. Adjust as necessary
for even unit lift.
1. To configure the unit Center-of-Gravity, utilize TOPSS
or contact the local Trane sales office.
2. Test lift the unit to ensure it is properly rigged and
balanced, make any necessary rigging adjustments.For
10 foot wide units, remove all shipping supports prior to
setting unit on roof curb. Failure to do so will result in
roof curb and/or unit damage.
3. Align the base rail of the unit air handler section with
the curb rail while lowering the unit onto the curb. Make
sure that the gasket on the curb is not damaged while
positioning the unit. (The pedestal simply supports the
unit condenser section)
A cross section of the juncture between the unit and the
roof curb is shown below.
Figure 14.
Typical unit base and roof curb cross
section
16.60
14.43
SHIPS WITH CURB -
FIELD INSTALLED GASKET,
2 x 4 NAILER
LIFTING LUGS/UNIT BASE
0.50
ROOF CURB
1.40
18.00
Содержание IntelliPak with Symbio 800
Страница 16: ...16 RT SVX063G EN Figure 1 20 to 30 ton front view inches 40 28 90 63 27 31 FRONT VIEW 20 30T Dimensional Data ...
Страница 18: ...18 RT SVX063G EN Figure 3 40 to 55 ton front view inches 27 31 40 28 90 63 FRONT VIEW 40 55T Dimensional Data ...
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