R
Application
Considerations
WSHP-PRC003-EN
28
Installation Made Easy
Installing a horizontal unit inside a cor-
ridor to enhance sound attenuation pro-
vides value to duct design. Trane takes
this fact one step further.
The new GEH design offers same side
return-air/supply-air access to the unit.
This access is contained within the
overall dimension of the units length as
shown in Figure 32. The duct access to
the unit allows the unit to be installed
closely against a corridor wall, while at
the same time eliminating space
required for the duct design.
Most horizontal unit designs provide an
opposite supply air from the return air
arrangement, or an end supply arrange-
ment option. See Figure 33 for end-sup-
ply example. An end-supply design
increases the overall unit length of the
system to accommodate a 90-degree
duct turn. This not only requires added
space, but also adds cost in both mate-
rials and installation.
Additional value to the design is
acquired through the same side sup-
ply/return-air design. This design elimi-
nates a requirement for a four sided
service access. When installing the
same side return/supply-air access, a
brief 3-inch minimum is all that is
required between the unit and the wall.
Service Access
To add more value in installation
requirements, the same side
supply/return design eliminates the
need for a four-sided service access
(See Figure 34). When installing the
same side return/supply access, a small
3” / 76 mm minimum space is required
between the unit and wall.
Figure 32: Same side supply/return air and end supply
arrangements with ductwork.
Figure 33: Service access requirments.
