90 PLUS®WITH DUAL COMFORT
CONTROL
™
TWO-STAGE UPFLOW
GAS FURNACES
FORM NO. G11-530
RGRK- Series
Models with Input Rates
120,000 BTU/HR [35.17 kW]
(All Models 90% A.F.U.E.
† or Above)
✝A.F.U.E. (Annual Fuel Utilization Efficiency) calculated in accordance with
Department of Energy test procedures.
• The Rheem Classic
®
Series 90 Plus with Dual Comfort
Control
™
line of upflow gas furnaces are designed for utility
rooms, closets, alcoves, or attics. Because of the low-
profile 34 inch [864 mm] height, the upflow model can
also be used to satisfy most applications that traditionally
call for a horizontal furnace.
• Two stages of operation to save energy and maintain optimal
comfort level.
• Furnace operates at 70% capacity for low-heat and 100%
capacity for high-heat.
• Compatible with single or two-stage thermostat. (For optimal
performance two-stage thermostat recommended.)
• Heat exchanger is constructed of aluminized steel for maximum corrosion resistance and thermal fatigue reliability.
• Low profile “34 inch” design is lighter and easier to handle and
leaves room for optional accessories.
• Left or right side gas, electric, and condensate drainage connections on upflow models.
• Integrated control board manages all operational functions
and provides hookups for humidifier and electronic air cleaner.
• An insulated blower compartment, a slow-opening gas valve
and a specially designed inducer system make it one of the
quietest furnaces on the market today.
• Pre-paint galvanized steel cabinet.
• Molded permanent filters.
• Optional indoor or outdoor combustion air. In addition, combustion air may be piped to either the top or side of the cabinet on all upflow models. A special molded fitting is provided
to ease installation.
• Transformer and control fuse protection.
• Solid bottom is standard.
• Control board diagnostics.
• A variety of cooling coils and plenums designed to use with
the Classic 90 Plus gas furnaces are available as optional
accessories for air conditioning models.
Air
Gas Furnaces
RGRK Series
Air
Table of Contents
RGRK Series
2
TABLE OF CONTENTS
Standard & Optional Equipment ......................................................................3
Model Features/Physical Data & Specifications..................................................4
Model Number Identification ............................................................................5
Dimensional Data............................................................................................6
Blower Performance Data ................................................................................7
Accessories....................................................................................................8
Limited Warranty ............................................................................................9
PRIMARY AND SECONDARY
HEAT EXCHANGER
REMOTE
SENSOR
IN-SHOT BURNERS
PRESSURE SWITCHES
DRAFT INDUCER
INTEGRATED
FURNACE
CONTROL
GAS VALVE AND
MANIFOLD
DIRECT SPARK IGNITION &
REMOTE SENSOR
STANDARD EQUIPMENT
Completely assembled and wired; heat exchanger; primary:
aluminized steel, secondary: 29-4C stainless steel; induced
draft; pressure switches; redundant main gas control; blower
compartment door safety switch; solid state time on/off
blower control; limit controls; manual shut-off valve; 100%
safety lock out; cool fan off delay; field selectable heat fan off
delay; one hour automatic retry; power and self-test
diagnostics; flame sense current diagnostics; electronic air
cleaner connections; twinning (built-in) features; humidifier
connections; humidifier on/off delay; low speed continuous fan
option; single speed option for heating and cooling
applications; pressure regulator for natural and L.P. (propane)
gasses; transformer; direct drive, multi-speed blower motor.
(Please note: a thermostat is not included as standard
equipment.)
WARNING
THIS FURNACE IS NOT APPROVED
OR RECOMMENDED
FOR USE IN MOBILE HOMES
OPTIONAL EQUIPMENT
Side and bottom filter racks; return air cabinet for all sizes.
NOTE: Furnace is not listed for use with fuels other than natural
or L.P. (propane) gas.
All models can be converted by a qualified distributor or local
service dealer to use L.P. (propane) gas without changing
burners. Factory approved kits must be used to convert from
natural to L.P. (propane) gas and may be ordered as optional
accessories from a parts distributor.
For L.P. (propane) operation, refer to Conversion Kit Index Form.
Air
Standard & Optional Equipment
RGRK Series
3
Air
Model Features/Physical Data & Specifications
RGRK Series
4
NOTES: All models are 115V, 60HZ, 1ø.Gas connection size for all models is 1/2" [13 mm] N.P.T.
➀ See Conversion Kit Index Form for high altitude derate.
➁ Canadian installations only.
➂ In accordance with D.O.E. test procedures.
*E = Standard
*N = NO
x
Models
[ ] Designates Metric Conversions
Physical Data and Specifications
U.S. and Canadian Models
• Two stages of operation to save energy and maintain optimal
comfort level.
• Furnace operates at 70% capacity for low-heat and 100%
capacity for high-heat.
• Compatible with single or two-stage thermostat. (For optimal
performance two-stage thermostat recommended.)
• Heat exchanger is constructed of aluminized steel for maximum corrosion resistance and thermal fatigue reliability.
• Low profile “34 inch” design is lighter and easier to handle and
leaves room for optional accessories.
• Left or right side gas, electric, and condensate drainage connections on upflow models.
• Integrated control board manages all operational functions
and provides hookups for humidifier and electronic air cleaner.
• An insulated blower compartment, a slow-opening gas valve
and a specially designed inducer system make it one of the
quietest furnaces on the market today.
• Pre-paint galvanized steel cabinet.
• Molded permanent filters.
• Optional indoor or outdoor combustion air. In addition, combustion air may be piped to either the top or side of the cabinet on all upflow models. A special molded fitting is provided
to ease installation.
• Transformer and control fuse protection.
• Solid bottom is standard.
• Control board diagnostics.
Model Features
MODEL NUMBERS
HIRE FIRE INPUT BTU/HR [kW] ➀
LOW FIRE INPUT BTU/HR [kW] ➁
HEATING CAPACITY BTU/HR [kW] 113,000 [33.12]
HIGH ALTITUDE INPUT 8000' ➁
HIGH ALTITUDE OUTPUT
AT 8000' (HIGH FIRE) [kW] ➁
BLOWER (D x W)
[mm]
MOTOR H.P. [W]–
SPEEDS–TYPE
MOTOR FULL LOAD AMPS
HEATING SPEED–HIGH FIRE
COOLING SPEED
MINIMUM EXT. STATIC PRESSURE
(IN. W.C.) [kPa]
MAXIMUM EXT. STATIC PRESSURE
(IN. W.C.) [kPa]
HEATING CFM @ .2" [.049 kPa]
W.C. E.S.P. [L/s]
COOLING CFM @ .5" [.124 kPa]
W.C. E.S.P. [L/s]
TEMPERATURE RISE-HIGH FIRE
RANGE °F [°C]
TEMPERATURE RISE-LOW FIRE
RANGE °F [°C]
RETURN AIR CABINETS (OPT.)
RXGRFILTER SIZE
[mm]
STANDARD, HIGH VELOCITY
PERMANENT FILTER (IN.)
APPROX. SHIPPING WEIGHT
(LBS.) [kg]
AFUE ➂
RGRK-12*RAJS
120,000 [35.17]
84,000 [24.62]
81,600 [23.91]
75,888 [22.24]
11 x 10
[279 x 254]
3
/4 [559]-4-PSC
9.5
MED-HI
LOWHEATING SPEED–LOW FIRE
HIGH
.20 [.049]
.50 [.124]
1580 [745]
1900 [897]
50-80
[27.8-44.4]
40-70
[22.2-38.9]
C24B
(2) 24" x 16"
[609 x 406]
223/4 x 25 x 1
160 [72.6]
92.0%
Air
Model Number Identification
RGRK Series
5
Model Number Identification
R G R K AM E S
Rheem Gas
Furnace
Upflow/
Condensing
Gas Furnace
Design
Series
Variations
A = Std.
Blower Size
R = 11 x 10
[279 x 254 mm]
Heat/Cool
Designation
J = 1900-2100 CFM
[896.7-991.1 L/s]
Fuel Code
S = U.S. and
Canadian
Natural Gas
Electric
Ignition
278
Option Code
for
High Altitude
Heating Input
Designation
12E*
Input
BTU/HR
12* 120,000 [35.2 kW]
NOTES: *E = Standard
*N = NO
x Models
—
[ ] Designates Metric Conversions
Air
Dimensional Data
RGRK Series
6
*
E=Standard
*
N=NO
x
Models
[ ] Designates Metric Conversions
MODEL
RGRK-
A B C D E F
LEFT
SIDE
MINIMUM CLEARANCE (IN.) [mm]
RIGHT
BACK TOP FRONT VENT
SIDE
12*R 241/2 [622] 2311/32 [593] 225/8 [575] 2 [51] 22 [600] 2025/32 [530] 0 0 0 1 [25] 2 [51] 0 160 [73]
SHIP
WGTS.
[kg]
Air
Blower Performance Data
RGRK Series
7
[ ] Designates Metric Conversions
**
E=Standard
**
N=NO
x
Models
**Note: CFM values represent furnace-only airflow ratings.
Blower Performance Data
MODEL
RGRK-
12*R
BLOWER
SIZE
[mm]
11 x 10
[279 x 254]
MOTOR
H.P.
[W]
3/4
[559]
BLOWER
SPEED
LOW
MED-LO
MED-HI
HIGH
EXTERNAL STATIC PRESSURE INCHES WATER COLUMN [kPa]
0.1 [.02] 0.2 [.05] 0.3 [.07] 0.4 [.10] 0.5 [.12] 0.6 [.15] 0.7 [.17]
1320 [623]
1610 [760]
1870 [882]
2115 [998]
1305 [616]
1580 [746]
1820 [860]
2050 [967]
CFM [L/s] AIR DELIVERY
1290 [608]
1555 [734]
1775 [838]
1990 [939]
1260 [596]
1515 [715]
1715 [809]
1945 [917]
1230 [580]
1475 [696]
1660 [783]
1900 [897]
1185 [559]
1415 [668]
1590 [750]
1795 [847]
1140 [538]
1355 [639]
1520 [717]
1690 [795]
Air
Accessories
RGRK Series
PLENUM DATA FOR “A” COILS
Plenum adapters are required in some instances for use on upflow
applications when plenum and furnace size do not match.
*Filter racks are shipped without filters.
Filters shipped with furnace may be used or a suitable 1" [25.4 mm] filter.
[ ] Designates Metric Conversions
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 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.
(U.S. Models—Kit packaged with furnace.
Requires field installation).
LP CONVERSION KITS:
U.S./Canadian RXGJ-FP19 or RXGJ-FP21
EXTERNAL BOTTOM FILTER RACK: RXGF-CB
EXTERNAL SIDE FILTER RACK: RXGF-CA
FOR HIGH ALTITUDES:
HIGH ALTITUDE KIT:
VENT TERMINATION KITS CONCENTRIC:
HORIZONTAL/VERTICAL =
RXGY-E03A (US & Canadian Installations)
HORIZONTAL TWO PIPE: RXGY-D02, RXGY-D03, RXGY-D04
(US Installations)
RXGY-D02A, RXGY-D03A, RXGY-D04A (Canadian Installations)
RXGY-G02 (US Only)
CONDENSATE PUMP KIT: RXGY-B01
NEUTRALIZER KIT: RXGY-A01
FOSSIL FUEL KIT: RXPF-F01, RXPF-F02 (TVA)
RETURN AIR PLENUM: RXGR-C17B, RXGR-C21B, RXGR-C24B
8
FURNACE
WIDTH
IN. [mm]
171/2
[445]
171/2 [445] 201/4 [514] RXAA-C173 RXAL-B20BU
171/2 [445] 215/8 [549]
171/2 [445] 251/4 [641] RXAA-C174 RXAL-B25BU
21 [533] 251/4 [641]
21 [533] 221/4 [565] RXAA-C176 RXAL-B22BU
21 [533] 215/8 [549] RXAA-C188 RXAL-B21BU
241/2
[622]
241/2 [622] 215/8 [549] RXAA-C187 RXAL-B21BU
PLENUM
WIDTH
IN. [mm]
161/4
[413]
251/4
[641]
PLENUM ADAPTER
UPFLOW
RXAA-C185 RXAL-B16BU
RXAA-C187 RXAL-B21BU
RXAA-C175 RXAL-B25BU
RXAA-C177 RXAL-B25BU
PLENUM
COIL
INPUT BTU/HR [kW] HIGH ALTITUDE KIT NO.
120,000 [35] RXGY-F21
MODEL
RGRK-
FILTER RACK FILTER SIZES* INCHES [mm]
RXGF-CB
(BOTTOM)
12
223/4 x 25
[578 x 635]
[400 x 635]
RXGF-CA
(SIDE)
153/4 x 25
Air
Limited Warranty
RGRK Series
9
GENERAL TERMS OF LIMITED WARRANTY*
Rheem will furnish a replacement for any part of this product
which fails in normal use and service within the applicable
period stated, in accordance with the terms of the limited
warranty.
*For complete details of the Limited and Conditional Warranties, including
applicable terms and conditions, contact your local contractor or the
Manufacturer for a copy of the product warranty certificate.
Primary and Secondary Heat Exchanger......Limited Lifetime
Conditional Parts Warranty*
(Registration Required) ..................................Ten (10) Years
Air
Notes
RGRK Series
10
Air
Notes
RGRK Series
11
The new degree of comfort.
™
Rheem Heating, Cooling & Water Heating • P.O. Box 17010
Fort Smith, Arkansas 72917 • www.rheem.com
In keeping with its policy of continuous progress and product improvement, Rheem reserves the right to make changes without notice.
PRINTED IN U.S.A 04/12 QG FORM NO. G11-530
Rheem Canada Ltd./Ltée • 125 Edgeware Road, Unit 1
Brampton, Ontario • L6Y 0P5
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