Page 1
FORM NO. G11-450 REV. 17
Supersedes Form No. G11-450 Rev. 16
GAS FURNACES
RGRA-/RGRB- SERIES
Models with Input Rates
from 45,000 to 120,000 BTU/HR
[13.19 to 35.17 kW]
(All Models 90% A.F.U.E.† or Above)
CLASSIC®90 PLUS
®
HIGH EFFICIENCY
UPFLOW
GAS FURNACES
The Rheem 90 Plus High Efficiency line of upflow gas furnaces are designed for utility rooms, closets or alcoves.
The design is certified by CSA.
Features
■ Heat exchanger is constructed of all stainless steel for
maximum corrosion resistance and thermal fatigue
reliability.
■ Low profile “34 inch” design is lighter and easier to han-
dle 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 func-
tions 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.
✝A.F.U.E. (Annual Fuel Utilization Efficiency) calculated in accordance with Department
of Energy test procedures.
Page 2
2 Rheem Heating, Cooling and Water Heating
STANDARD EQUIPMENT
Completely assembled and wired; heat exchanger; primary: 409 and aluminized
409 stainless 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, multispeed blower motor. (Please note: a thermostat is not included as standard
equipment.)
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.
WARNING
THIS FURNACE IS NOT APPROVED
OR RECOMMENDED
FOR USE IN MOBILE HOMES
PRIMARY AND SECONDARY
HEAT EXCHANGER
REMOTE
SENSOR
IN-SHOT BURNERS
PRESSURE SWITCHES
DRAFT INDUCER
INTEGRATED
FURNACE
CONTROL
GAS VALVE AND
MANIFOLD
CLASSIC®90 PLUS HIGH EFFICIENCY
UPFLOW GAS FURNACE
DIRECT SPARK IGNITION &
REMOTE SENSOR
Page 3
Rheem Heating, Cooling and Water Heating 3
BEFORE PURCHASING THIS APPLIANCE, READ IMPORTANT ENERGY COST AND EFFICIENCY INFORMATION AVAILABLE
FROM YOUR RETAILER.
PHYSICAL DATA AND SPECIFICATIONS—UPFLOW MODELS
U.S. and Canadian Models
NOTES: All models are 115V, 60HZ, 1
ø.
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.
MODEL IDENTIFICATION
R G R A 04E AM E S
Rheem Gas
Furnace
Upflow/
Condensing
Gas Furnace
Design
Series
A = 1st
Design
Series
B = 2nd
Design
Series
Heating Input
Designation
Variations
A = Std.
B = Wide
Cabinet
Blower Size
M = 11 x 7
[279 x 178 mm]
R = 11 x 10
[279 x 254 mm]
Z = 12 x 11
[305 x 279 mm]
Y = 12 x 7
[305 x 178 mm]
Heat/Cool
Designation
E = 1100-1300 CFM
[519-613.5 L/s]
G = 1500-1700 CFM
[707.9-802.3 L/s]
J = 1900-2100 CFM
[896.7-991.1 L/s]
Fuel Code
S = U.S. and
Canadian
Natural Gas
Electric
Ignition
04E
06E
07E
09E
10E
12E
Input
BTU/HR
45,000 [13 kW]
60,000 [17.6 kW]
75,000 [22 kW]
(RGRB Models Only)
90,000 [26.4 kW]
105,000 [30.7 kW]
120,000 [35.2 kW]
[ ] Designates Metric Conversions
MODEL NUMBERS RGRA-04EMAES RGRA-06EMAES RGRB-07EMAES RGRB-07EYBGS RGRA-09EZAJS RGRA-10EZAJS
INPUT–BTU/HR [kW] ➀
HEATING CAPACITY BTU/HR [kW] 42,000 [12.31] 56,000 [16.41] 70,000 [20.51] 70,000 [20.51] 84,000 [24.62] 97,000 [28.43]
HIGH ALTITUDE INPUT [kW] ➁
HIGH ALTITUDE OUTPUT
CAPACITY [kW] ➁
BLOWER (D x W)
[mm]
MOTOR H.P. [W]–
SPEEDS–TYPE
MOTOR FULL LOAD AMPS 6.8 6.8 6.8 9.5 9.5 9.5
HEATING SPEED MED-LO MED-LO MED-HI MED-LO MED-LO MED-LO
COOLING SPEED HIGH HIGH HIGH HIGH HIGH HIGH
HEAT EXT. STATIC PRESSURE
(IN. W.C.) [kPa]
RATED 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
RANGE °F [°C]
RETURN AIR CABINETS (OPT.)
RXGRFILTER SIZE
[mm]
STANDARD, HIGH VELOCITY
PERMANENT FILTER (IN.)
APPROX. SHIPPING WEIGHT
(LBS.) [kg]
AFUE ➂
CALIFORNIA SEASONAL
EFFICIENCY ➂
45,000 [13.19] 60,000 [17.58] 75,000 [21.98] 75,000 [21.98] 90,000 [26.38] 105,000 [30.77]
40,500 [11.87] 54,000 [15.83] 67,500 [19.78] 67,500 [19.78] 81,000 [23.74] 94,500 [27.70]
37,800 [11.07] 50,400 [14.77] 63,000 [18.46] 63,000 [18.46] 76,000 [22.27] 87,500 [25.64]
11 x 7
[279 x 178]
1
/2 [373]-4-PSC1/2 [373]-4-PSC1/2 [373]-4-PSC3/4 [559]-4-PSC3/4 [559]-4-PSC3/4 [559]-4-PSC
.10 [.025] .12 [.029] .12 [.029] .12 [.029] .15 [.037] .20 [.049]
.50 [.124] .50 [.124] .50 [.124] .50 [.124] .50 [.124] .50 [.124]
885 [417] 845 [398] 1050 [495] 1275 [600] 1465 [691] 1445 [682]
1195 [564] 1100 [519] 1110 [524] 1540 [725] 1910 [901] 1810 [854]
30-60
[16.7-33.3]
C17B
(2) 12" x 16"
[305 x 406]
153/4 x 25 x 1 153/4 x 25 x 1 153/4 x 25 x 1 153/4 x 25 x 1 191/4 x 25 x 1 191/4 x 25 x 1 223/4 x 25 x 1
111 [50.3] 117 [53.1] 124 [56.2] 137 [62.1] 148 [67.1] 152 [68.9]
93.5% 92.5% 92.8% 92.0% 93.5% 92.0%
86.7% 87.6% 87.9% 85.8% 87.3% 86.9% 89.6%
11 x 7
[279 x 178]
40-70
[22.2-38.9]
C17B
(2) 12" x 16"
[305 x 406]
11 x 7
[279 x 178]
45-75
[25-41.7]
C17B
(2) 12" x 16"
[305 x 406]
12 x 7
[305 x 178]
40-70
[22.2-38.9]
C21B
(2) 12" x 20"
[305 x 508]
12 x 11
[305 x 279]
35-65
[19.4-36.1]
C21B
(2) 20" x 16"
[508 x 406]
12 x 11
[305 x 279]
50-80
[27.8-44.4]
C21B
(2) 20" x 16"
[508 x 406]
RGRA-12ERAJS
120,000 [35.17]
113,000 [33.12]
108,000 [31.65]
100,000 [29.31]
11 x 10
[279 x 254]
3
/4 [559]-4-PSC
9.5
MED-LO
HIGH
.20 [.049]
.50 [.124]
1580 [745]
1900 [897]
50-80
[27.8-44.4]
C24B
(2) 24" x 16"
[609 x 406]
160 [72.6]
93.5%
Page 4
4 Rheem Heating, Cooling and Water Heating
UPFLOW MODELS
[ ] Designates Metric Conversions
MODEL
RGRA-/
RGRB-
04EM 171/2 [445] 1611/32 [415] 155/8 [397] 2 [51] 15 [422] 1325/32 [352] 0 0 0 1 [25] 2 [51] 0 111 [50]
06EM
07EM 171/2 [445] 1611/32 [415] 155/8 [397] 2 [51] 15 [422] 1325/32 [352] 0 0 0 1 [25] 2 [51] 0 124 [56]
07EY 21 [533] 1927/32 [504] 191/8 [487] 2 [51] 181/2 [511] 179/32 [441] 0 0 0 1 [25] 2 [51] 0 137 [62]
09EZ
10EZ 21 [533] 1927/32 [504] 191/8 [487] 2 [51] 181/2 [511] 179/32 [441] 0 0 0 1 [25] 2 [51] 0 152 [69]
12ER
A B C D E F
171/2 [445] 1611/32 [415] 155/8 [397]
21 [533] 1927/32 [504] 191/8 [487]
241/2 [622] 2311/32 [593] 225/8 [575]
2 [51]
2 [51]
2 [51]
15 [422] 1325/32 [352]
181/2 [511] 179/32 [441]
22 [600] 2025/32 [530]
LEFT
SIDE
0 0 0 1 [25] 2 [51] 0 117 [53]
0 0 0 1 [25] 2 [51] 0 148 [67]
0 0 0 1 [25] 2 [51] 0 160 [73]
MINIMUM CLEARANCE (IN.) [mm]
RIGHT
BACK TOP FRONT VENT
SIDE
SHIP
WGTS.
[kg]
Page 5
Rheem Heating, Cooling and Water Heating 5
BLOWER PERFORMANCE DATA*—RGRA-/RGRB- MODELS
[ ] Designates Metric Conversions
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 Warranty, Including Applicable
Terms and Conditions, See Your Local Installer or Contact the
Manufacturer for a Copy.
Primary and Secondary Heat Exchanger.......Limited Lifetime
Conditional Parts* (Registration Required).......Ten (10) Years
*Blower performance measured with filter in place.
MODEL
RGRA04EM
RGRA06EM
RGRB07EM
RGRB07EY
RGRA09EZ
RGRA10EZ
RGRA12ER
BLOWER
SIZE
[mm]
11 x 7
[279 x 178]
11 x 7
[279 x 178]
11 x 7
[279 x 178]
12 x 7
[305 x 178]
12 x 11
[305 x 279]
12 x 11
[305 x 279]
11 x 10
[279 x 254]
MOTOR
H.P.
[W]
1/2
[373]
1/2
[373]
1/2
[373]
3/4
[559]
3/4
[559]
3/4
[559]
3/4
[559]
BLOWER
SPEED
LOW
MED-LO
MED-HI
HIGH
LOW
MED-LO
MED-HI
HIGH
LOW
MED-LO
MED-HI
HIGH
LOW
MED-LO
MED-HI
HIGH
LOW
MED-LO
MED-HI
HIGH
LOW
MED-LO
MED-HI
HIGH
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]
805 [380]
920 [434]
1140 [538]
1360 [642]
770 [363]
880 [415]
1060 [500]
1260 [594]
780 [368]
880 [415]
1090 [514]
1300 [613]
1105 [522]
1290 [609]
1480 [698]
1705 [805]
1235 [582]
1490 [703]
1720 [811]
2100 [991]
1230 [580]
1490 [703]
1710 [807]
2010 [949]
1320 [623]
1610 [760]
1870 [882]
2115 [998]
780 [368]
885 [417]
1110 [524]
1320 [623]
740 [349]
845 [398]
1025 [483]
1215 [573]
745 [351]
850 [401]
1050 [495]
1255 [592]
1095 [517]
1275 [602]
1435 [677]
1665 [786]
1210 [571]
1465 [691]
1670 [788]
2050 [967]
1205 [567]
1445 [682]
1665 [786]
1955 [923]
1305 [616]
1580 [746]
1820 [860]
2050 [967]
CFM [L/s] AIR DELIVERY
760 [358]
850 [401]
1085 [512]
1280 [604]
710 [335]
815 [384]
990 [467]
1175 [554]
710 [335]
825 [389]
1010 [477]
1210 [571]
1080 [510]
1260 [595]
1415 [668]
1615 [762]
1185 [559]
1440 [679]
1620 [764]
2000 [944]
1180 [557]
1405 [663]
1620 [764]
1900 [897]
1290 [608]
1555 [734]
1775 [838]
1990 [939]
1045 [493]
1235 [583]
1135 [535]
1160 [547]
1050 [496]
1220 [576]
1390 [656]
1570 [741]
1150 [543]
1405 [663]
1600 [755]
1955 [923]
1155 [545]
1375 [649]
1580 [746]
1855 [875]
1260 [596]
1515 [715]
1715 [809]
1945 [917]
720 [340]
810 [382]
675 [318]
790 [373]
960 [453]
675 [318]
785 [370]
970 [458]
685 [323]
775 [365]
1010 [476]
1195 [564]
645 [304]
760 [358]
925 [436]
1100 [519]
640 [302]
750 [354]
925 [436]
1110 [524]
1030 [486]
1195 [564]
1370 [647]
1540 [727]
1120 [528]
1375 [649]
1580 [746]
1910 [901]
1130 [533]
1350 [637]
1540 [727]
1810 [854]
1230 [580]
1475 [696]
1660 [783]
1900 [897]
645 [304]
730 [344]
950 [448]
1140 [538]
605 [285]
715 [337]
880 [415]
1040 [491]
595 [281]
702 [331]
875 [413]
1055 [498]
1010 [477]
1170 [552]
1300 [614]
1475 [696]
1075 [507]
1315 [620]
1520 [717]
1825 [861]
1090 [514]
1295 [611]
1475 [696]
1710 [807]
1185 [559]
1415 [668]
1590 [750]
1795 [847]
605 [285]
690 [325]
890 [420]
1080 [500]
570 [269]
670 [316]
835 [394]
985 [465]
555 [261]
655 [309]
825 [389]
1005 [474]
990 [467]
1140 [538]
1255 [592]
1400 [661]
1035 [488]
1255 [592]
1460 [689]
1745 [823]
1050 [495]
1240 [585]
1410 [665]
1610 [759]
1140 [538]
1355 [639]
1520 [717]
1690 [795]
Page 6
6 Rheem Heating, Cooling and Water Heating
ACCESSORIES—UPFLOW
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)
NEUTRALIZER KIT: RXGY-A01
FOSSIL FUEL KIT: RXPF-F01, RXPF-F02 (TVA)
RETURN AIR PLENUM: RXGR-C17B
RXGR-C21B
RXGR-C24B
EXTERNAL BOTTOM FILTER RACK: RXGF-CB
EXTERNAL SIDE FILTER RACK: RXGF-CA
*Filter racks are shipped without filters.
Filters shipped with furnace may be used or a suitable 1" [25.4 mm] filter.
FOR HIGH ALTITUDES:
*HIGH ALTITUDE KIT: RXGY-F04 (105 KBTU/H)
RXGY-F05 (120 KBTU/H)
RXGY-F06 (45 KBTU/H/60 KBTU/H/
RXGY-F06 (90 KBTU/H)
RXGY-F07 (75 KBTU/H)
*For installations over 5000 ft.
OPTION CODE FOR HIGH ALTITUDE: US & 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.
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.
(U.S. Models—Kit packaged with furnace.
Requires field installation).
EXTERNAL BOTTOM FILTER RACK: RXGF-CB
EXTERNAL SIDE FILTER RACK: RXGF-CA
[ ] Designates Metric Conversions
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.
Note: See Form Number C11-206 for MultiFlex®coil data.
FILTER RACK FILTER SIZES* INCHES [mm]
MODEL
RGRA-04
RGRA-06
RGRB-07EM
RGRB-07EY
RGRA-09
RGRA-10
RGRA-12
RXGF-CB
(BOTTOM)
153/4 x 25
[400 x 635]
153/4 x 25
[400 x 635]
153/4 x 25
[400 x 635]
191/4 x 25
[489 x 635]
191/4 x 25
[489 x 635]
191/4 x 25
[489 x 635]
223/4 x 25
[578 x 635]
RXGF-CA
(SIDE)
153/4 x 25
[400 x 635]
153/4 x 25
[400 x 635]
153/4 x 25
[400 x 635]
153/4 x 25
[400 x 635]
153/4 x 25
[400 x 635]
153/4 x 25
[400 x 635]
153/4 x 25
[400 x 635]
FURNACE
WIDTH
IN. [mm]
14 [356] 161/4 [413] RXAA-C171 RXAL-B16BU
14 [356] 201/4 [514] RXAA-C172 RXAL-B20BU
171/2 [445] 161/4 [413] RXAA-C185 RXAL-B16BU
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] 251/4 [641] RXAA-C177 RXAL-B25BU
241/2 [622] 215/8 [549] RXAA-C187 RXAL-B21BU
PLENUM
WIDTH
IN. [mm]
PLENUM ADAPTER
UPFLOW
RXAA-C187 RXAL-B21BU
RXAA-C175 RXAL-B25BU
PLENUM
COIL
Page 7
Rheem Heating, Cooling and Water Heating 7
NOTES
Page 8
Before proceeding with installation, refer
to installation instructions packaged
with each model, as well as complying
with all Federal, State, Provincial, and
Local codes, regulations, and practices.
Rheem Heating,
Cooling and
Water Heating
P.O. Box 17010, Fort Smith, AR 72917
“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. 10-09 DC FORM NO. G11-450 REV. 17
Supersedes Form No. G11-450 Rev. 16
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