Carrier 38MGQ - Ducted Indoor Unit Installation; Installation Location Requirements; Install Indoor Ducted Unit

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AIR SUPPLY DUCT INSTALLATION
1. Installation of the Rectangular Air Supply Duct
4 6 83 75
1
2
3
Return air
Supply air
Return air
Fig. 54 --- Installation of Air Duct Supply
Ta ble 19—Air Duct
NUMBER NAME NUMBER NAME
1 Hanger 5 Plenum Box
2
Return Air
Duct
6 Filter Screen
3 Canvas Duct 7
Main Air
Supply Duct
4
Return Air
Heat
8
Air Supply
Outlet
INST ALL THE ROUND AIR SUPPL Y DUCT
1
2
4
3
5 6 7
8 9
Fig. 55 --- Air supply duct
Ta ble 20—Air Duct
NUMBER NAME NUMBER NAME
1
Return Air
Duct
6 Transition Duct
2 Canvas Duct 7
Air Supply
Duct
3
Return Air
Louver
8 Diffuser
4 Hanger 9 Diffuser Joint
5
Air Supply
Duct
ROUND AIR SUPPLY DUCT INSTALLATION STEPS
1. Pre--install the outlet of the round duct on the transition duct
and then secure it with the tapping screw.
2. Place the transition duct to the air outlet of the unit and
secure it with a rivet.
3. Connect the outlet to the duct and then tighten them with
tape. Other installation details are not covered herein.
S The max. le ngth of the duct mea ns t he max. length of the air
supply duct plus the max. le ngt h of the return air duct.
S The duct is either rectangular or round and connected with
the air inlet/outlet of the indoor unit. Among all air supply
outlets, at least one should remain open. As for the round
duct, it needs a transition duct of which the size should
match with the air supply of the unit. After the fitting of the
transition duct, it is best to keep the round duct 32 ft. (10m)
away from the corresponding diffuser.
!
CAUTION