Trane 120 GEH, Model 180 GEV Application Considerations, Installation Made Easy, Service Access

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Application Considerations

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.

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