Step 6 horizontal inlet - final steps, Step 5 horizontal inlet - install filters – Reznor CAUA Option - Installation - Filter Cabinet User Manual
Page 6

Form I-CAUA-FC, Page 6
SECTION B - Installation Instructions for Return Air Filter Cabinet Options CW 4, 5,
6, 7, 11, and 12 with a Vertical (Top) Inlet
FIGURE 5 - Dimensions of a Filter
Cabinet with a Vertical (Top) Inlet -
inches (mm)
Filter Cabinet
Door Panel
1 (25)
34-3/4
(883)
Top View
A
B Inlet Opening
1-11/32 (34)
Filter Cabinet Assembled with
Vertical (top) Inlet Air Opening
18
(457)
1-3/8 (35)
16 (406)
Inlet Opening
Sizes
Option CW
A
B
150 & 200
4, 5, 6, 7, 12, 11
34-11/16 (881)
32 (813)
250 & 300
4, 5, 6
34-11/16 (881)
32 (813)
7, 12, 11
47-13/16 (1214)
45-1/8 (116)
350 & 400
4, 5, 6, 7, 12, 11
47-13/16 (1214)
45-1/8 (116)
STEP 6 Horizontal Inlet - Final
Steps
Parts Required: Door Assembly
Instructions:
Install the door on the end of the filter
cabinet. Fasten the latches.
Installation of the optional filter cabinet
with a horizontal inlet is complete.
Duct flange dimensions for connecting
ductwork are shown on page 4.
After heater installation is complete and
return air ductwork is connected, turn on
the electric and the gas and check for
proper operation.
STEP 5 Horizontal Inlet - Install Filters
Parts Required: Filters (either shipped with the option package or
field-supplied)
Instructions: Slide the filters into the filter rack channels.
NOTES:
* Requires 2" permanent filters.
** If installing filter cabinet that attaches to the side of the heater (Option
CW 4, 5 or 6), two cabinets must be installed, one on each side.
Permanent or Pleated 2" Filters
for Options CW4, CW5, or CW6
Size CFM FPM
Filters
150
1800
281
(4) 16 x 16
2400
375
(4) 16 x 16
3000
469
(4) 16 x 16
200
2400
375
(4) 16 x 16
3000
469
(4) 16 x 16
250
3000
469
(4) 16 x 16
*4000
625
(4) 16 x 16
**5000
781
(4) 16 x 16;
(4) 16 x 16
300
3000
469
(4) 16 x 16
*4000
625
(4) 16 x 16
**5000
781
(4) 16 x 16;
(4) 16 x 16
350
4300
448
(6) 16 x 16
5000
521
(6) 16 x 16
*6000
625
(6) 16 x 16
400
4300
448
(6) 16 x 16
5000
521
(6) 16 x 16
*6000
625
(6) 16 x 16
Permanent or Pleated 2"
Filters for Options CW7,
CW12, or CW11
Size CFM FPM
Filters
150
1800
281
(4) 16 x 16
2400
375
(4) 16 x 16
3000
469
(4) 16 x 16
200 2400
375
(4) 16 x 16
3000
469
(4) 16 x 16
250
3000
313
(6) 16 x 16
4000
417
(6) 16 x 16
5000
521
(6) 16 x 16
300
3000
313
(6) 16 x 16
4000
417
(6) 16 x 16
5000
521
(6) 16 x 16
350
4300
448
(6) 16 x 16
5000
521
(6) 16 x 16
*6000 625
(6) 16 x 16
400
4300
448
(6) 16 x 16
5000
521
(6) 16 x 16
*6000 625
(6) 16 x 16
Filter
Cabinet
Door
Assembly