Dometic VN670, VN630 Installing The Supply Air Distribution, Volvo L-4Installation Guidelines

Volvo L-4 Installation Guidelines

INSTALLING THE SUPPLY AIR DISTRIBUTION

For the L-4 chassis installation, you will use the factory-installed Volvo ductwork for supply air distri- bution. In addition, you will add one or two 4" ducts to extra discharge grills. The 10,000 BTU air conditioner uses one 4" duct, and the 14,000 BTU system uses two.

Connecting to the Volvo Ductwork

First, remove the rubber duct transition that is located in the passenger-side luggage compartment (Fig. 11). It is secured only by force, so you can remove it by pulling.

Remove the duct from the truck, and cut a 4” hole as shown in the photograph (Fig. 12).

Find the V4 RND black 4" round grill. Trim the flange on two sides, as shown in the photographs (Figs. 13- 14), so it will fit into the duct transition.

Rubber duct transition

Figure 11 - Duct transition location

Figure 12 - Hole cut in duct transition

Figure 13 - First trimming cut on 4" grill

Figure 14 - V4 RND trimmed to fit

ENGLISH