Reznor CAUA Option - Installation - Filter Cabinet - Manual (Page 4)

Form I-CAUA-FC, Page 4
FOURTH, if the rear or side filter cabinet is a type that can be installed with either a ver-
tical (top) or horizontal inlet opening, determine which way the cabinet will be installed.
When assembling and attaching the cabinet, be careful to follow the instructions
for the inlet selected.
FIGURE 4 -
Dimensions -
inches (mm) - of
a Return Air Filter
Cabinet with a
Horizontal (rear)
Inlet - Applies to
Options CW 4, 5, 6,
7, 12, and 11
Sizes Option CW A B C D
150 & 200 4, 5, 6, 7, 12, 11 34-11/16 (881) 32 (813) 34-3/4 (883) 18 (457)
250 & 300
4, 5, 6 34-11/16 (881) 32 (813) 34-3/4 (883) 18 (457)
7, 12, 11 47-13/16 (1214) 45-1/8 (1143) 34-3/4 (883) 18 (457)
350 & 400 4, 5, 6, 7, 12, 11 47-13/16 (1214) 45-1/8 (1143) 34-3/4 (883) 18 (457)
If the heater is installed, disconnect the gas and the power supply. Carefully follow the
instructions that apply:
• If installing filter cabinet Option CW 4, 5, 6, 7, 12, or 11 with a horizontal (rear)
return air inlet, follow the instructions in SECTION A, starting below. (Options
CW 4, 5, and 6 attach to the side of the heater; CW 7, 12, and 11 attach to the
rear of the heater.)
• If installing filter cabinet Option CW 4, 5, 6, 7, 12, or 11 with a vertical (top)
return air inlet, follow the instructions in SECTION B, starting on page 6.
(Options CW 4, 5, and 6 attach to the side of the heater; CW 7, 12, and 11
attach to the rear of the heater.)
INSTALLATION NOTES:
1) The illustrations do not show the entire heater, only the side or rear panel where
the return air filter cabinet is being attached.
2) Because the filter cabinet is designed to be built with either a vertical (top) or
horizontal inlet, not all screw holes will be used. Use the quantity of screws
listed for each step.
Filter Cabinet
Options CW 4, 5,
6, 7, 12, and 11
Assembled with a
Horizontal (rear)
Inlet
Filter Cabinet
Options CW 4, 5,
6, 7, 12, and 11
Assembled with a
Vertical (top) Inlet
FIGURE 3 - Large
Size Return Air
Filter Cabinets with
Horizontal (rear) Inlet
or Vertical (top) Inlet
for installation on
the Side or Rear of a
Model CAUA heater
Cabinet has one
removable door that
may be installed on
either end.
LARGE RETURN AIR FILTER CABINETS FOR ATTACHING TO REAR OR SIDE
OF MODEL CAUA - OPTIONS CW 4, 5, 6, 7, 11, AND 12 (cont'd)
SECTION A -
Installation
Instructions for a
Return Air Filter
Cabinet Options CW
4, 5, 6, 7, 11, and 12
with a Horizontal
(rear) Inlet
Filter Cabinet
Door Panel
Filter Cabinet Assembled with
Horizontal Inlet Air Opening
C
D
A
B Inlet Opening 29/32
(23)
16
(406)
Inlet
Opening
1-11/32 (279)
Installation
Instructions -
Options CW 4, 5, 6,
7, 11, 12