2
Preparation
1. Select one to three air inlet knockouts to use to bring
in air.
2. Cut out the knockout(s).
3. Install the indoor unit per the unit’s installation
manual.
4. Connect all piping and wiring to the indoor unit.
5. Connect high efficiency filter accessory to indoor unit.
6. Connect indoor unit cover panel to high efficiency
filter accessory.
1
2
3
5
4
Figure 1. Fully Assembled Installation
1. V33B Cassette Unit Body
2. High Efficiency Filter Kit
3. Fresh Air Duct
4. Ceiling
5. Cassette Cover Panel
Unit Dimensions - inches (mm)
Details of the Air Inlet
45°
90°
knock out hole
5-3/8 (137 mm)
5-3/8
(137 mm)
Foam Gasket
1-1/8 (79 mm)
1-1/8 (79 mm)
4 (100 mm)
32-3/4 (832 mm)
28-7/8 (733 mm)
1-1/2 (38 mm)
19 (483 mm)
2-1/2
(64 mm)
2-1/2
(64 mm)
2-1/2
(64 mm)
2-1/2
(64 mm)
32-3/4 (832 mm)
25-3/8 (645 mm)
17-7/8 (454 mm)
16-1/2 (419 mm)
26-1/4 (667 mm)
2-1/4 (57 mm)
14-3/8 (365 mm)
29 (737 mm)
3-3/4
(94 mm)
Air Inlet
SIDE VIEW
BOTTOM VIEW
