Rheem CLASSIC 90 RGTJ- SERIES - Furnace Accessories & High Altitude Options; Optional Furnace Accessories; Plenum & Coil Matching; High Altitude Installation Kits

Rheem Manufacturing Company 7
ACCESSORIES—DOWNFLOW
PLENUM DATA FOR “A” COILS
Plenum adapters are required in some applications when plenum and
furnace size do not match.
VENT TERMINATION KITS CONCENTRIC: Horizontal/Vertical = RXGY-E03
HORIZONTAL TWO PIPE: RXGY-D02, RXGY-D03, RXGY-D04
CONDENSATE PUMP KIT: RXGY-B01
NEUTRALIZER KIT: RXGY-A01
FOSSIL FUEL KIT: RXPF-F01, RXPF-F02 (TVA)
FOR HIGH ALTITUDES:
*Filter racks are shipped without filters.
RXGP-F03
TWINNING KIT—is for use with Rheem Classic 90 Gas Furnaces for
parallel operation requirements (not needed with RGTA downflow/
horizontal gas furnaces).
Note: See Form Number C11-206 for MultiFlex
®
coil data.
COMBUSTIBLE FLOOR BASE: RXGC-B17, RXGC-B21, RXGC-B24
EXTERNAL TOP MOUNT FILTER RACK: RXGF-CC
INTERNAL FILTER RACK FOR AIR RETURN DUCT: RXGF-DB*
Each order contains (1) one box of 10 filter racks supplied without filters.
*Filters available through PROSTOCK
®
.
FURNACE
WIDTH
IN. [mm]
PLENUM
WIDTH
IN. [mm]
PLENUM ADAPTER
DOWNFLOW
COIL
PLENUM
17
1
/2 [445] 16
1
/4 [413] RXAA-C186 RXAL-B16BU
17
1
/2 [445] 20
1
/4 [514]
RXAA-C173 RXAL-B20BU
17
1
/2 [445] 21
5
/8 [549] RXAA-C187 RXAL-B21BU
17
1
/2 [445] 25
1
/4 [641] RXAA-C174 RXAL-B25BU
21
1
/2 [533] 25
1
/4 [641]
RXAA-C175 RXAL-B25BU
21
1
/
2 [533]
22
1
/
4 [565]
RXAA-C176 RXAL-B22BU
24
1
/2 [622] 25
1
/4 [641]
RXAA-C177 RXAL-B25BU
24
1
/2 [622] 21
5
/8 [549] RXAA-C187 RXAL-B21BU
21
1
/2 [533] 21
5
/8 [549]
RXAA-C188 RXAL-B21BU
*HIGH ALTITUDE KIT:
F04-105 KBTU/H
F06-45/60/90 KBTU/H
F05-120 KBTU/H
F07-75 KBTU/H
FILTER RACK FILTER SIZES
®
INCHES [mm]
MODEL RGTJ- RXGF-CC
04 (2) 12 x 20 [305 x 508]
06 (2) 12 x 20 [305 x 508]
07 (2) 12 x 20 [305 x 508]
09 (2) 12 x 20 [305 x 508]
10 (2) 12 x 20 [305 x 508]
12 (2) 14 x 20 [305 x 508]
*For installations over 5000 ft.
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.
[ ] Designates Metric Conversions