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Air Distribution Components
1
Mixing box
2
Mixing box
3
(side inlet)
Filtration Sections
11
9
Horizontal
10
Horizontal
Horizontal
flat filter
angle filter
bag/side loading
section
section
cartridge
filter section
Heat Transfer and Plenum Sections
C
H
15
14
Coil and
Coil and
variable
variable
length plenum
length plenum
without drain pan
with drain pan
Electric
22
Integral face and
23
heat
bypass heating
section
coil section
Housed Fan Sections
INLET
A
B
RETURN
C
H
INLET
SUPPLY/
RETURN
D
G
INLET
F
E
RETURN
29
Horizontal fan
Plenum Fan Sections
INLET
INLET
33
Belt drive
plenum fan
Filter mixing
4
Air mixer
5
Exhaust
box
box
FRONT
LOAD
12
Horizontal
13
bag/front loading
cartridge section
B
C
H
C
H
16
Dual coil
17
Vertical cooling or
and variable
heating (single or
length plenum
dual) coil section
with drain pan
with drain pan
RETURN
OUTSIDE
24
25
Energy recovery
Gas
wheel with optional
heater
electric preheat
section
A
B
INLET
INLET
31
Blow-thru supply fan
30
Draw-thru exhaust
section with rear inlet
fan section
and diffuser
INLET
34
Direct drive plenum
fan w/ NEMA "T"
frame motor single/
Direct drive plenum fan
dual/4/6 fan array
35
w/EC Motor in single/
multiple fan array
Fig. 13 — Component Drawings (Refer to Tables 1-3)
Exhaust
6
7 Internal
box (side
face and
outlet)
bypass
damper
section
HEPA
FILTER
Horizontal
blow-thru front
loading HEPA
B
filter section
H
C
18
Multizone
19
Multizone/dual duct
damper
heating/cooling coil
section with drain pan
26
27
Humidifier
Plenum
section
section
28
A
C
H
D
G
INLET
32
Vertical fan section
with bottom inlet
Vertical Direct drive plenum
36
fan w/ EC Motor in single/
multiple fan array
14
8
External face
and bypass
damper
section
A
A
C
H
20
Cooling
21
Heating
internal
internal
face and
face and
bypass coil
bypass coil
with drain
(optional
pan
drain pan)
LEGEND
A — Horizontal Discharge
B
B — Vertical Discharge
C — Cooling
H — Heating
B
Turning
plenum
B
C
D
Fan Configurations
AVAILABLE
CONFIGURATIONS
A Upblast Rear Discharge
B Upblast Front Discharge
C Top Horizontal Front Discharge
D Bottom Horizontal Front Discharge X
E Downblast Front Discharge
F Downblast Rear Discharge
G Bottom Horizontal Rear Discharge
H Top Horizontal Rear Discharge
Discharge may be field-fabricated
Fan Section Access
Hinged Door on Both Sides
Hinged Door on Hand Side
Removable Panels
X = Standard configuration
a39-4383
FAN COMPONENT
SECTION NUMBER
29 30 31 32 33 34 35 36
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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