Page 1
FORM NO. G11-482 REV. 6
Supersedes Form No. G11-482 Rev. 5
GAS FURNACES
RGRK- 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)
90 PLUS®WITH DUAL
COMFORT CONTROL
TWO-STAGE UPFLOW
GAS FURNACES
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.
The design is certified by CSA.
Features
■ Two stages of operation to save energy and maintain optimal com-
fort level.
■ Furnace operates at 70% capacity for low-heat and 100% capacity
for high-heat.
■ Compatible with single or two-stage thermostat. (For optimal perfor-
mance two-stage thermostat recommended.)
■ 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 handle and
leaves room for optional accessories.
■ Left or right side gas, electric, and condensate drainage connec-
tions on upflow models.
■ Integrated control board manages all operational functions and pro-
vides 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 Manufacturing Company
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 SERIES 90 PLUS HIGH EFFICIENCY
UPFLOW GAS FURNACE
DIRECT SPARK IGNITION &
REMOTE SENSOR
Page 3
Rheem Manufacturing Company 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, 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
MODEL IDENTIFICATION
R G R K 07E* AM E S
Rheem Gas
Furnace
Upflow/
Condensing
Gas Furnace
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
04
*
06
*
07
*
09
*
10
*
12
*
Input
BTU/HR
45,000 [13 kW]
60,000 [17.6 kW]
75,000 [22 kW]
90,000 [26.4 kW]
105,000 [30.7 kW]
120,000 [35.2 kW]
278
Option Code
for
High Altitude
—
NOTES: *E = Standard
*N = NO
x
Models
[ ] Designates Metric Conversions
MODEL NUMBERS RGRK-04*MAES RGRK-06*MAES RGRK-07*MAES RGRK-07*YBGS RGRK-09*ZAJS RGRK-10*ZAJS
HIRE FIRE INPUT BTU/HR [kW] ➀
LOW FIRE INPUT BTU/HR [kW] ➁
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] 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 6.8 6.8 6.8 9.5 9.5 9.5
HEATING SPEED–HIGH FIRE MED-LO MED-LO MED-HI MED-LO MED-HI MED-HI
COOLING SPEED HIGH HIGH HIGH HIGH HIGH HIGH
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
45,000 [13.19] 60,000 [17.58] 75,000 [21.98] 75,000 [21.98] 90,000 [26.38] 105,000 [30.77]
31,500 [9.23] 42,000 [12.31] 52,500 [15.39] 52,500 [15.39] 63,000 [18.46] 73,500 [21.54]
30,600 [8.97] 40,800 [11.96] 51,000 [14.95] 51,000 [14.95] 61,200 [17.94] 71,400 [20.93]
28,458 [8.34] 37,944 [11.12] 47,430 [13.90] 47,430 [13.90] 56,916 [16.69] 66,402 [19.46]
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
LOW LOW LOW LOW LOW LOW LOWHEATING SPEED–LOW FIRE
.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]
20-50
[11.1-27.8]
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] 123 [55.8] 123 [55.8] 148 [67.1] 152 [68.9]
92.0% 92.0% 92.0% 92.0% 92.0% 92.0%
11 x 7
[279 x 178]
40-70
[22.2-38.9]
30-60
[16.7-33.3]
C17B
(2) 12" x 16"
[305 x 406]
11 x 7
[279 x 178]
45-75
[25-41.7]
40-70
[22.2-38.9]
C17B
(2) 12" x 16"
[305 x 406]
12 x 7
[305 x 178]
40-70
[22.2-38.9]
25-55
[13.9-30.6]
C21B
(2) 12" x 20"
[305 x 508]
12 x 11
[305 x 279]
35-65
[19.4-36.1]
30-60
[16.7-33.3]
C21B
(2) 20" x 16"
[508 x 406]
12 x 11
[305 x 279]
50-80
[27.8-44.4]
35-65
[19.4-36.1]
C21B
(2) 20" x 16"
[508 x 406]
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
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]
160 [72.6]
92.0%
Page 4
4 Rheem Manufacturing Company
UPFLOW MODELS
*
E=Standard
*
N=NO
x
Models
[ ] Designates Metric Conversions
4 Rheem Manufacturing Company
MODEL
RGRK-
04*M 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]
06*M
07*M 171/2 [445] 1611/32 [415] 155/8 [397] 2 [51] 15 [422] 1325/32 [352] 0 0 0 1 [25] 2 [51] 0 123 [56]
07*Y 21 [533] 1927/32 [504] 191/8 [487] 2 [51] 181/2 [511] 179/32 [441] 0 0 0 1 [25] 2 [51] 0 123 [56]
09*Z
10*Z 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]
12*R
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
SIDE
BACK TOP FRONT VENT
SHIP
WGTS.
[kg]
Page 5
Rheem Manufacturing Company 5
BLOWER PERFORMANCE DATA**—RGRK 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
*Any Other Part.............................................Five (5) Years
*This five year limited warranty is applicable only to single-phase
products installed in residential applications.
**
E=Standard
**
N=NO
x
Models
**Blower performance measured with filter in place.
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]
1280 [605]
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 [498]
1220 [678]
1390 [658]
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]
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]
MODEL
RGRK-
04*M
06*M
07*M
07*Y
09*Z
10*Z
12*R
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]
1096 [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]
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 Manufacturing Company
ACCESSORIES—UPFLOW
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.
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)
RETURN AIR PLENUM: RXGR-C17B, RXGR-C21B, RXGR-C24B
Note: See Form Number C11-206 for MultiFlex®coil data.
*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:
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
MODEL
RGRK-
04
06
07EM
07NM
07EY
07NY
09
10
12
PLENUM
WIDTH
IN. [mm]
FILTER RACK FILTER SIZES* INCHES [mm]
PLENUM ADAPTER
UPFLOW
RXAA-C187 RXAL-B21BU
RXAA-C175 RXAL-B25BU
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]
COIL
PLENUM
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]
INPUT BTU/HR [kW] HIGH ALTITUDE KIT NO.
45,000 [13] RXGY-F18
60,000 [18]
75,000 (N) [22] RXGY-F19
75,000 (W) [22] RXGY-F18
90,000 [26] RXGY-F20
105,000 [31] RXGY-F19
120,000 [35] RXGY-F21
RXGY-F18
Page 7
Rheem Manufacturing Company 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
AIR CONDITIONING
DIVISION
5600 Old Greenwood Road, Fort Smith, Arkansas 72908
“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. 5-07 DC FORM NO. G11-482 REV. 6
Supersedes Form No. G11-482 Rev. 5
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