Lennox V8V33B001-3P User manual

1
Shipping and Packing List
Package 1 of 1 contains:
1 - V33B High E󰀩ciency Filter Accessory Kit
12 - Screws
1 - Installation manual
INSTALLATION
INSTRUCTIONS
VRF Systems -- V33B High E󰀩ciency Filter Accessory
507953-01
04/2019
V8V33B001-3P
VRF
©2019 Lennox Industries Inc. Dallas, Texas, USA
WARNING
Improper installation, adjustment, alteration, service or
maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer or
equivalent, service agency, or the gas supplier.
General
The V33B High E󰀩ciency Filter accessory V8V33B001-
3P (18F53) is for use in applications with a 3rd-party, high
MERV-rated lter for optimal indoor air quality. The ac-
cessory housing features outside air knockouts for use in
complying with fresh air requirements. The high e󰀩ciency
lter accessory is designed for use with the V33B 360°
Cassette only. Refer to the V33B Cassette installation in-
structions for additional information on these units.
IMPORTANT
Read all of the information in this manual before using
this accessory. All wiring must conform to local and na-
tional building and electrical codes and ordinances.

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 e󰀩ciency lter accessory to indoor unit.
6. Connect indoor unit cover panel to high e󰀩ciency
lter accessory.
1
2 3
5
4
Figure 1. Fully Assembled Installation
1. V33B Cassette Unit Body
2. High E󰀩ciency 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

3
Installation
1. Remove screws from cassette body as shown in
Figure 2. Retain screws for later use.
Figure 2. Remove Screws and Hook
a.Loosen the two screws
b.Remove the hook
c.Re-install one of the screws.
Retain other screw for later use.
Remove screw.
Retain for later use.
Remove screw.
Retain for later use.
Remove screw.
Retain for later use.
Remove hook.
2. Remove hook from cassette body as shown in Figure
2. Re-install one screw. Retain one screw for later
use.

4
3. Complete all indoor unit wiring and connections to
the electrical control box.
4. Attach high e󰀩ciency lter kit to the unit body using
the hangers on two corners of the accessory kit.
Place these two hangers on the corresponding hooks
on the corners of the cassette body. See detail A in
Figure 3. Then, place the other hangers from the
other two corners over their corresponding hooks on
the cassette body as shown in detail B in Figure 3.
Indoor Unit Body
Supply Duct
Knockout
Refrigerant Pipe
Lift Pump
Drain Pipe
Use screwdriver to tighten.
Use screwdriver to tighten.
High Efficiency Filter Kit
DETAIL A DETAIL B
Figure 3. Attach High E󰀩ciency Filter Kit to Cassette Body
5. Connect fresh air supply to high e󰀩ciency lter kit.
6. Install the cassette cover panel.

5
Cassette Cover Panel Installation
1. Carefully remove the cassette cover panel from its
protective packaging and place the panel di󰀨user-
side-out on a clean, level surface.
CORNER ACCESS
COVER
Remove screws andloosen
straps to remove corner
covers from panel.
LATCH RELEASE
BUTTONS
45º
Press latch release
buttons at the same
time to release latch.
Tilt return air grille outward,
then, lift to remove grille
from panel.
Figure 4. Remove Return Air Grille
CAUTION
Do not place the cover panel with the di󰀨users face
down on the oor or other surface. Louvers will be
damaged if pressure is applied to them.
2. Press the two grille latch release buttons at the same
time to release the grille. See Figure 4. Tilt the return
air grille outward at a 45º angle and lift the grille
away from the panel. Carefully place the return air
grille o󰀨 to the side.
3. Remove access covers from each corner of the
panel. See Figure 5.
Figure 5. Remove Corner Covers
4. Position the ceiling panel so that the arrow on
the panel is aligned with the arrow sticker on the
cassette base (both arrow stickers should be on the
same side of the cassette base). NOTE - If the panel
and the base are not properly aligned, the airow
will be blocked and the harness plugs from the panel
to the cassette base will not be long enough to plug
together.
5. Connect the six-pin harness plugs from each of the
two swing motors to the matching six-pin plugs from
the control box in the cassette base.
6. Connect the black harness from the display on the
cover panel to the corresponding black plug from the
control box in the cassette base.
Refrigerant
Piping Connections
Connection
Lift Pump
CassetteBase
Hook
Hanger
DETAIL A
Phillips
Screwdriver
Cover Panel
Securing
Screw
DETAIL B
DETAIL C
Cover Panel
Louver Swing
Motors
Figure 6. Install Cover Panel

6
CORNER PANEL
LOOSEN UPPER NUT
TIGHTEN LOWER NUT
Figure 7. Adjust Unit Height Through Corner Panel
7. Tighten the provided screws in the bracket in the
cover panel immediately below each panel hanger.
See detail C in Figure 6. Adjust the cover panel by
turning slightly clockwise, if necessary, to make
sure that the panel is properly aligned with the high
e󰀩ciency lter kit.
8. Continue to tighten the cover panel securing screws
until the insulation between the cover panel and the
kit has been compressed to approximately ¼”. The
cover panel must form a seal with the ceiling and the
kit around the entire perimeter of the kit. See Figure
7.
9. If it is necessary to adjust the cassette height after
the cover panel has been installed, access the
leveling nut through the removable access cover on
each corner. See Figure 7.
10. The return air grille must be reinstalled on the cover
panel. Align the four tabs on the grille with the four
slots in the cover panel. Tilt the panel back into
place. Press the opposite side of the cover gently
until the latches engage.
11. Remove and discard the factory-provided return air
lter.
12. Use clips to secure high e󰀩ciency lter. See Figure
8.
Figure 8. High E󰀩ciency Filter Clips
Technical Support
1-844-GET-VRF1
(1-844-438-8731)
[email protected]
www.LennoxVRF.com
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