Dometic DF Serie Instructions D'installation page 12

PRE-INSTALLATION
HORIZONTAL OR VERTICAL USE
(DUCTS 3, 4, & 5) OR BOTTOM
EXIT INTO HARD FLOOR DUCT
DFS20
DISCHARGE
REQ.
DFS16
DISCHARGE
REQ.
DFS12
DISCHARGE
REQ.
DFSA12
(LOW AMP)
DISCHARGE
REQ.
Air flow: shown in cubic feet-per-minute, taken with a cold system (Cold CFM) .
Registers: 4" x 10" floor registers flow air better than 4" Round Plastic registers . Using 4" Round registers may require additional
ducting .
Required Discharge
DFS (12, 16, & 20)
DFM (16 & 20)
DFM (25 & 30)
DFM (30 & 35) Horizontal Bottom
DFM (16, 20, & 25) Horizontal Bottom
DFM Vertical Bottom
DFL (35 & 40)
DFL (35 & 40) Horizontal Bottom
DFL (35 & 40) Vertical Bottom
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
MODELS
DFSA12
DFM35
4" FLEX DUCTS
Minimum CFM
130
Two 4" flex ducts –
one each from the left and right side, based
on horizontal or vertical mounting .
Minimum CFM
110
Two 4" flex ducts –
one each from the left and right side, based
on horizontal or vertical mounting .
Minimum CFM
90
Two 4" flex ducts –
one each from the left and right side, based
on horizontal or vertical mounting .
Minimum CFM
N/A
N/A
REQUIRED DISCHARGE AREA
Front Grill or 15 in .
2
24 in .
2
24 in . with 4" flex
2
36 in . with 4" flex
2
48 in . with 4" flex
2
48 in . (Bottom + 4" duct)
2
40 in . (Bottom only)
2
48 in . (Bottom only)
2
36 in . with 4" flex
2
48 in . (Bottom + 4" duct)
2
48 in . (Bottom only)
2
12
5" FRONT EXIT
FLEX DUCTS
92
One 5" OR two 4" ducts
(5" can be reduced to 4"
if necessary)
82
One 5" OR two 4" ducts
(5" can be reduced to 4"
if necessary)
80
One 5" OR two 4" ducts
(5" can be reduced to 4"
if necessary)
60
One 5" front duct ONLY