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—20—
4.72”
(120)
ØA
B
ØA
Ø C
Duct connection flange
Clip
1/4" (6 mm) neoprene gasket
Insulated flexible duct
Fresh air intake
Conditioned air supply to an
adjacent room
Polystyrene partition
Baffle (619FNF018 only)
Frame
Wall
Undercut door
Wall-fitted grille
Door-fitted grille
Air intake grille
Unit 619FNF018
619FNF024, 03036
619FNQ01824, 03036
Ø A 5-29/32"(150 mm) 5-29/32"(150 mm)
B 4-3/4"(120 mm) 4-3/4"(120 mm)
Ø C 2-3/4"(70 mm) 3-15/16"(100 mm)
4.14”
(105)
1.93”
(49)
8.5
0”
(216)
Note:
Dimensions in ( ) are in mm.
Fig. 30 — Installation Options
NOTE: Dimensions in ( ) are in mm.
Supply air duct to adjacent room
Airflow (cfm)
erusserp citats lanretxE (in.wg)
0
50
100
150 200
619FNF018, 024
619FNQ01824
0.18
250
0.16
0.14
0.12
0.1
0.08
0.06
0.04
0.02
619FNF, FNQ03036
0
NOTE: When two louvers are closed, the fresh airflow towards the adjacent room is 50% higher than when
one louver is closed (with equal static external pressure).
Fig. 31 — Pressure Drop for Conditioned Air Supply to an Adjacent Room: One Louver Closed