Bosch DHD series Installation Instructions Manual page 7

Figures 3 through 6 are examples of possible ducting
Remote Blower
Roof Mount Installation
Through wall installation
Remote
Blower
Collar
Fig. 3
Integral Blower
Through Wall Installation
BLOWER ROTATED 90° FOR SIDE
CONNECTION
Fig. 5
Remote
Blower
Duct
Transition
Box
Integral Blower
Integral Blower
Through Wall Installation
Wall Cap
Ground
Fig. 4
Inline Blower
Through Wall Installations
Wall Cap
Ground
Fig. 6
Integral Blower
Duct
Transition
Box
Inline
Blower
7