Carrier 40KMC Installation Instructions Manual page 23

@ Duct connection flange
® Clip
@® 1/4" (6 mm) neoprene gasket
40KMC024, 03036
@® Insulated flexible duct
® Fresh air intake
© Conditioned air supply to an
adjacent room
Unit 40KMCO18 40KMOQ01824, 03036
BA 5-29/32"(150 mm) | 5-29/32"(150 mm)
B 4-3/4"(120 mm) 4-3/4"(120 mm)
oC 2-3/4"(70 mm) | 3+15/16"(100 mm)
@ Polystyrene partition
Baffle (40KMC018 Only)
NOTE: Dimensions in ( ) are in mm.
@® Frame
Air intake grille
tH ie Tl ea
@ Undercut door
@® Wall-fitted grille
Tl ® Door-fitted grille
Fig. 38 - Installation Options
0.18
0.16
0.14
0.12
40KMC,KMQ 03036
0.1
0.08
0.06
0.04
0.02
40KMC018,024
40KMQ01824
0 50 100
150
Airflow (cfm)
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).
A0G9551
Supply air duct to adjacent room
200 250
AO7178a
Fig. 39 - Pressure Drop for Conditioned Air Supply to an Adjacent Room (one louver closed)