6
Rheem Manufacturing Company
ACCESSORIES—UPFLOW
SIDE RETURN FILTER RACK:
RXGF-CA
BOTTOM MOUNT:
RXGF-CB
†Filter racks are shipped without filters.
Filters shipped with furnace may be used or a suitable 1" [25.4 mm] filter.
RXPF-F01 and F02
FOSSIL FUEL KIT
—is for use with Rheem Heat Pumps and
Criterion II Plus 2 LXE warm air furnaces. RXPF-F02 meets
TVA requirements.
ACCESSORY RETURN
AIR CABINETS
Return Air Cabinets may be
installed on either side
application except RXGR-C24B
(side application must be on
side opposite gas and electrical
connections).
THE RXGR-C24B MAY ONLY BE INSTALLED ON THE SIDE OPPOSITE THE
GAS AND ELECTRICAL CONNECTIONS.
WARNING: IMPORTANT NOTICE
A SOLID METAL BASE PLATE (SEE TABLE) MUST BE IN PLACE WHEN THE FURNACE
IS INSTALLED WITH SIDE RETURN DUCTS. FAILURE TO INSTALL A BASE PLATE
COULD CAUSE PRODUCTS OF COMBUSTION TO BE CIRCULATED INTO THE LIVING
SPACE AND CREATE POTENTIALLY HAZARDOUS CONDITIONS.
FURNACE
BASE
WIDTH
SOLID BOTTOM
BASE
PLATE SIZE
IN. [mm]
KIT NO.
PLATE NO.
IN. [mm]
17
1
/
2
[445]
RXGB-D17
AE-61874-02
15
1
/
8
x 23
9
/
16
[384 x 598]
21
1
/
2
[533]
RXGB-D21
AE-61874-03
18
5
/
8
x 23
9
/
16
[473 x 598]
24
1
/
2
[622]
RXGB-D24
AE-61874-04
25
5
/
8
x 23
9
/
16
[651 x 598]
FILTER RACK FILTER SIZES† INCHES [mm]
MODEL
RGPL-
RXGF-CA
(SIDE)
05, 07, 10, 12
15
3
/
4
x 25
[400 x 635]
RETURN AIR CABINETS
A
IN. [mm]
FILTER SIZE
IN. [mm]
RXGR-C17B
17
1
/
2
[445]
(2) 12 x 16 [305 x 406]
RXGR-C21B
21
1
/
4
[533]
(2) 20 x 16 [508 x 406]
RXGR-C24B
24
1
/
2
[622]
(2) 24 x 16 [610 x 406]
FOR HIGH ALTITUDES
HIGH ALTITUDE KIT
—Required for all models at altitudes of 5,000
ft. and above. Use kit # RXGY-F13 for all -GPL models.
OPTION CODE FOR HIGH ALTITUDE:
U.S. & Canada – 278
NOTE:
High altitude kits and options do
NOT
include additional
burner orifices. If a burner orifice change is necessary, they
must be ordered through PROSTOCK
®
. See Installation
Instructions for more information.
Option – 278 furnaces are shipped with #51 DMS orifices installed.
This is one drill size smaller than standard furnaces to account for
expected average elevations and heating values typically seen in
these areas.
CAUTION:
Always follow National Fuel Gas Code (NFGC) guidelines
when converting furnaces for high altitudes.
For all installations above 2000 ft. (including all option – 278
models), the burner orifice size needs to be recalculated and
verified. A burner orifice change may still be required. See
Installation Instructions for more information.
NOTE:
For Canadian installations only, an optional derate (manifold
gas pressure reduction) method may be used to adjust the
furnace for altitude. See Installation Instructions for more
information. This optional method may
NOT
be used for
U.S. installations.
*HUMIDISTAT FOR ON-DEMAND DEHUMIDIFICATION:
41-25066-01
*Available through PROSTOCK
®
.
[
] Designates Metric Conversions
