Dometic Peterbilt 379 CHASSIS User Manual download pdf (Page 9)

ENGLISH 9

Peterbilt 379 Installation Guidelines

Figure 6 - Location for cutting return air vent

Figure 7 - Return air vent hole cut

INSTALLING THE RETURN AIR VENT

The supplied return air vent(s) should be installed

under the bunk, in the same area where the CHEB

will be mounted. Your package may contain either

one large grill with a mounting frame or two smaller

12.5" x 5.5" surface-mount grills. We suggest using a

hole saw and reciprocating saw to cut out the hole for

the large grill. If you received the two 12.5" x 5.5" grills

instead of the one large grill, use a 4" hole saw to cut

at least two holes behind each grill. Use of the recip-

rocating saw is optional for those grills (Figs. 6-8).

Remember, good air ﬂow from the return air grill

to the CHEB evaporator coil is critical for your

air conditioning system to perform correctly. Do

not allow anything to block this air ﬂow.

Figure 8 - Return air grill ange installed

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Dometic Peterbilt 379 CHASSIS User Manual Page 9