Unit Mounting; Structural Preparation; Rooftop Mounting; Ground Level Mounting - Trane Odyssey TWA0724 A Series Installation, Operation And Maintenance Manual

P P r r e e - - I I n n s s t t a a l l l l a a t t i i o o n n
"Dimensional Data," p.

Unit Mounting

W W A A R R N N I I N N G G
R R i i s s k k o o f f R R o o o o f f C C o o l l l l a a p p s s i i n n g g ! !
F F a a i i l l u u r r e e t t o o e e n n s s u u r r e e p p r r o o p p e e r r s s t t r r u u c c t t u u r r a a l l r r o o o o f f s s u u p p p p o o r r t t
c c o o u u l l d d c c a a u u s s e e t t h h e e r r o o o o f f t t o o c c o o l l l l a a p p s s e e , , w w h h i i c c h h c c o o u u l l d d
r r e e s s u u l l t t i i n n d d e e a a t t h h o o r r s s e e r r i i o o u u s s i i n n j j u u r r y y a a n n d d p p r r o o p p e e r r t t y y
d d a a m m a a g g e e . .
C C o o n n f f i i r r m m w w i i t t h h a a s s t t r r u u c c t t u u r r a a l l e e n n g g i i n n e e e e r r t t h h a a t t t t h h e e r r o o o o f f
s s t t r r u u c c t t u u r r e e i i s s s s t t r r o o n n g g e e n n o o u u g g h h t t o o s s u u p p p p o o r r t t t t h h e e
c c o o m m b b i i n n e e d d w w e e i i g g h h t t o o f f t t h h e e r r o o o o f f c c u u r r b b , , t t h h e e u u n n i i t t , , a a n n d d a a n n y y
a a c c c c e e s s s s o o r r i i e e s s . .

Structural Preparation

N N O O T T I I C C E E
R R o o o o f f D D a a m m a a g g e e ! !
S S y y s s t t e e m m c c o o n n t t a a i i n n s s o o i i l l a a n n d d r r e e f f r r i i g g e e r r a a n n t t u u n n d d e e r r h h i i g g h h
p p r r e e s s s s u u r r e e . . R R o o o o f f s s s s h h o o u u l l d d b b e e p p r r o o t t e e c c t t e e d d f f r r o o m m
e e x x p p o o s s u u r r e e t t o o o o i i l l s s a a n n d d r r e e f f r r i i g g e e r r a a n n t t i i n n t t h h e e s s y y s s t t e e m m . . I I f f
r r o o o o f f t t o o p p i i s s n n o o t t p p r r o o t t e e c c t t e e d d , , d d a a m m a a g g e e t t o o t t h h e e r r o o o o f f m m a a y y
o o c c c c u u r r . .
I I m m p p o o r r t t a a n n t t : : Refer to local building codes for proper
installation. All installation must comply
with local building codes.

Rooftop Mounting

If the unit will be roof mounted, determine for certain
that the structure is strong enough to support the unit
and any required accessories, see
The unit should be elevated on a level, field fabricated
four-inch steel or wood 4" x 4" mounting frame.
Complete the frame and secure it into position before
lifting the unit to the roof. The mounting frame must
support a minimum of three of the unit's four sides and
should span roof supports to distribute the load on the
roof.
8
10).
"Weights," p. 16.
Figure 1. Roof mounted unit
Outdoor Unit
Gas (Suction)
Line - Insulated
Liquid Line
Insulated
6"
Radius
Unit Mounting
Channels
Elevation
(Mounting Frame)
Construction
Roof Trussing

Ground Level Mounting

For ground level installation, the unit base should be
adequately supported and hold the unit near level. The
installation must meet the guidelines set forth in local
codes. The support should extend two inches beyond
the unit base channels at all points. The unit and
support must be isolated from any adjacent structure
to prevent possible noise or vibration problems. Any
ground level location must comply with required
clearances given in the unit dimensional drawings (see
"Dimensional Data," p. 10).

Snow Belt Recommendations

In regions where deep snow is encountered, raise the
unit a minimum distance of 8 to 12 inches above the
mounting surface. This will reduce the risk of snow
blocking the coil and improves runoff of water
produced during the defrost cycle. Avoid locating the
unit where snow tends to drift. Snow accumulations
must be removed from around the unit immediately to
prevent drastic efficiency reduction. A snow drift
barrier may be constructed around the unit to prevent
snow blockage. Clearance between the snow barrier
and the unit must comply with the clearances given in
"Dimensional Data drawings," p.

Installation Checklist

Complete this checklist once the unit is installed to
verify that all recommended procedures have been
accomplished before starting the system. Do not
operate the system until all items covered by this
checklist are complete.
☐ Inspect unit location for proper required service
clearances.
Roof
Ceiling
10.
SSP-SVX001B-EN