Page 1
FORM NO. G11-488 REV. 5
Supersedes Form No. G11-488 Rev. 4
GAS FURNACES
RGTK- SERIES
Models with Input Rates
from 60,000 to 120,000 BTU/HR
[17.58 to 35.17 kW]
(All Models 92% A.F.U.E.† or Above)
90 PLUS®WITH DUAL
COMFORT CONTROL
TWO-STAGE
DOWNFLOW/HORIZONTAL
GAS FURNACES
The Rheem Classic Series®90 Plus with Dual Comfort Control line of
downflow/horizontal gas furnaces are designed for utility rooms, clos-
ets, alcoves, or attics. T
he RGTK is shipped in the downflow configuration and is easily converted for horizontal left-hand airflow
applications.
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 per-
formance two-stage thermostat recommended.)
■ Heat exchanger tubular construction is 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.
■ Top electrical connections, left or right side gas, and condensate
drainage connections on downflow/horizontal 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.
■ Transformer and control fuse protection.
■ Control board diagnostics.
■ Condensate drain trap for horizontal/downflow application provided
standard.
A variety of cooling coils and plenums designed to use with the
Rheem Classic Series
®
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 manual shut-off; blower compartment
door safety switch; solid state time on/off blower control; limit controls; 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.)
OPTIONAL EQUIPMENT
NOTE: Furnace is not listed for use with fuels other than natural or L.P.
(propane) gas.
All models can be converted by a 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
DOWNFLOW/HORIZONTAL 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—
DOWNFLOW/HORIZONTAL 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 Index Form for LP Conversion Kits.
➁ In accordance with D.O.E. test procedures.
*E = Standard
*N = NO
x
Models
MODEL IDENTIFICATION
R G T K 07E* AM E S
Rheem Gas
Furnace
Downflow/
Horizontal
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
06
*
07
*
09
*
10
*
12
*
Input
BTU/HR
60,000 [17.6 kW]
75,000 [22 kW].6
90,000 [26.4 kW]
105,000 [30.7 kW]
120,000 [35.2 kW]
—
NOTES: *E = Standard
*N = NO
x
Models
[ ] Designates Metric Conversions
MODEL NUMBERS RGTK-06*MAES RGTK-07*MAES RGTK-07*YBGS RGTK-09*ZAJS RGTK-10*ZAJS
HIGH FIRE INPUT BTU/HR [kW] ➀
LOW FIRE INPUT BTU/HR [kW] 42,000 [12.31] 52,500 [15.39] 52,500 [15.39] 63,000 [18.46] 73,500 [21.54]
HIGH FIRE HEATING CAPACITY BTU/HR [kW] 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 FIRE HIGH ALTITUDE INPUT 8000' 40,800 [11.96] 51,000 [14.95] 51,000 [14.95] 61,200 [17.94] 71,400 [20.93]
HIGH FIRE HIGH ALTITUDE OUTPUT
AT 8000' (HIGH FIRE) [kW]
BLOWER (D x W)
[mm]
MOTOR H.P. [W]–SPEEDS–TYPE
MOTOR FULL LOAD AMPS 6.8 6.8 9.5 9.5 9.5
HEATING SPEED–HIGH FIRE MED-LO MED-HI MED-LO MED-LO MED-LO
HEATING SPEED–LOW FIRE LOW LOW LOW LOW LOW LOW
COOLING SPEED 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] 117 [53.1] 123 [55.8] 123 [55.8] 148 [67.1] 152 [68.9]
➁
AFUE
60,000 [17.58] 75,000 [21.98] 75,000 [21.98] 90,000 [26.38] 105,000 [30.77]
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-PSC3/4 [559]-4-PSC3/4 [559]-4-PSC3/4 [559]-4-PSC
.12 [.029] .12 [.029] .12 [.029] .15 [.037] .20 [.049]
.50 [.124] .50 [.124] .50 [.124] .50 [.124] .50 [.124]
885 [418] 1060 [500] 1375 [649] 1400 [661] 1425 [673]
1180 [557] 1150 [543] 1625 [767] 1850 [873] 1820 [859]
40-70
[22.2-38.9]
30-60
[16.7-33.3]
C17B
(2) 12" x 20"
[305 x 508]
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
93.8 92.5 93.0 93.2 92.2
11 x 7
[279 x 178]
45-75
[25-41.7]
45-75
[25-41.7]
C17B
(2) 12" x 20"
[305 x 508]
12 x 7
[305 x 178]
35-65
[19.4-36.1]
25-55
[13.9-30.6]
C21B
(2) 12" x 20"
[305 x 508]
12 x 11
[305 x 279]
45-75
[25-41.7]
35-65
[19.4-36.1]
C21B
(2) 20" x 20"
[508 x 508]
12 x 11
[305 x 279]
50-80
[27.8-44.4]
35-65
[19.4-36.1]
C21B
(2) 20" x 20"
[508 x 508]
RGTK-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]
1565 [739]
2040 [963]
50-80
[27.8-44.4]
45-75
[25-41.7]
C24B
(2) 24" x 20"
[609 x 508]
160 [72.6]
92.4
Page 4
4 Rheem Manufacturing Company
[ ] Designates Metric Conversions
4 Rheem Manufacturing Company
DOWNFLOW MODELS
NOTE: In downflow configuration, return air cut-out is not permitted.
19
/32
[15 mm]
A
B
RETURN AIR
269/16 [678 mm]
1
/16 [611 mm]
24
2 [51 mm] DIA.
GAS CONNECTION
15/8 [41 mm] DIA.
ALT. CONDENSATE
DRAIN
LEFT SIDE
13
4
/16
[106 mm]
27
/64
6
[163 mm]
FRONT RIGHT SIDE
19
[15 mm]
3
/4
[19 mm]
[664 mm]
/32
34
13
4
/16
[106 mm]
3
/4
[19 mm]
3
4
[111 mm]
1
/16
28
[713 mm]
1
/8
20
D
[511 mm]
13
25
/16 [656 mm]
19
/32
[15 mm]
2311/16 [602 mm]
2 [51 mm]
ALT. GAS CONNECTION
5
1
/8
/8 [41 mm] DIA.
CONDENSATE DRAIN
Page 5
Rheem Manufacturing Company 5
HORIZONTAL MODELS
[ ] Designates Metric Conversions
NOTE: In downflow configuration,
return air cut-out is
not permitted.
IMPORTANT NOTE: Horizontal furnace may be installed for horizontal left hand air supply ONLY. The condensate trap provided for horizontal application must be
installed in the field beneath the unit as directed in the furnace Installation & Operating Instructions.
5
/8 [41 mm] DIA.
1
ALT. CONDENSATE
DRAIN
[611 mm]
2 [51 mm]
DIA.GAS
CONNECTION
1
24
269/16
[675 mm]
/16
7
19
/8
[505 mm]
LEFT SIDE
SUPPLY
AIR
E
7
/16 [87 mm]
3
413/16
[122 mm]
1
/64
6
[153 mm]
13
/16
4
[122 mm]
3
4
/8
[111 mm]
5
1
DIA.
CONDENSATE
DRAIN
[864 mm]
2 [51 mm]
DIA. ALT.
GAS
CONNECTION
/8 [41 mm]
TOP
FRONT
34
[656 mm]
11
/16
23
[602 mm]
ELECT.
19
/32
[15 mm]
A
B
3
/4
[19 mm]
13
/16
25
19
[15 mm]
[19 mm]
D
[713 mm]
201/16
[511 mm]
/32
3
/4
281/16
CONN.
13
/16
1
[46 mm]
C
F
31
23
/32
[609 mm]
3
22
/32
[561 mm]
COMBUSTIBLE
AIR INLET
LOW VOLTAGE
VENT
OUTLET
RETURN AIR
RIGHT SIDE
BOTTOM
19
/32
[15 mm]
MODEL
RGTK-
06
A B C D E F
171/2 [445] 1611/32 [415] 155/8 [397]
2 [51]
165/8 [422] 137/8 [352]
LEFT
SIDE
0 0 0 1 [25] 2 [51] 0 117 [53]
07EM 171/2 [445] 1611/32 [415] 155/8 [397] 2 [51] 165/8 [422] 137/8 [352] 0 0 0 1 [25] 2 [51] 0 123 [56]
07EY 21 [533] 1927/32 [504] 193/16 [486] 2 [51] 201/8 [511] 173/8 [441] 0 0 0 1 [25] 2 [51] 0 123 [56]
09 21 [533] 1927/32 [504] 193/16 [486] 2 [51] 201/8 [511] 173/8 [441] 0 0 0 1 [25] 2 [51] 0 148 [67]
10 21 [533] 1927/32 [504] 193/16 [486] 2 [51] 201/8 [511] 173/8 [441] 0 0 0 1 [25] 2 [51] 0 152 [69]
12 241/2 [622] 2311/32 [593] 225/8 [575] 2 [51] 235/8 [600] 207/8 [530] 0 0 0 1 [25] 2 [51] 0 160 [73]
MINIMUM CLEARANCE (IN.) [mm]
RIGHT
BACK TOP FRONT VENT
SIDE
WGTS.
SHIP
[kg]
Page 6
6 Rheem Manufacturing Company
BLOWER PERFORMANCE DATA**—RGTK MODELS
**Blower performance measured with filter in place.
NOTE:
Recommended blower speeds are in bold.
[ ] 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.
MODEL
RGTK-
06
07EM
07EY
09
10
12
BLOWER
SIZE
IN. [mm]
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]
3/4
[559]
3/4
[559]
3/4
[559]
3/4
[559]
BLOWER
SPEED
LOW
MED-L0
MED-HI
HIGH
LOW
MED-L0
MED-HI
HIGH
LOW
MED-L0
MED-HI
HIGH
LOW
MED-L0
MED-HI
HIGH
LOW
MED-L0
MED-HI
HIGH
LOW
MED-L0
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]
795 [375]
910 [429]
1115 [526]
1365 [644]
780 [368]
890 [420]
1100 [519]
1340 [632]
1185 [559]
1405 [663]
1595 [753]
1835 [666]
1155 [545]
1420 [670]
1605 [757]
2005 [946]
1180 [557]
1460 [689]
1680 [793]
2055 [970]
1285 [606]
1590 [750]
1840 [868]
2315 [1093]
760 [359]
885 [418]
1080 [510]
1315 [620]
750 [354]
860 [406]
1060 [500]
1295 [611]
1160 [547]
1375 [649]
1560 [738]
1780 [840]
1125 [531]
1400 [661]
1575 [743]
1965 [927]
1150 [543]
1425 [672]
1645 [776]
2000 [944]
1250 [590]
1565 [738]
1820 [860]
2250 [1062]
CFM [L/s] AIR DELIVERY
730 [344]
860 [406]
1045 [493]
1270 [600]
720 [339]
835 [394]
1025 [484]
1250 [590]
1140 [538]
1350 [637]
1525 [720]
1730 [816]
1100 [519]
1380 [651]
1550 [732]
1930 [910]
1120 [528]
1390 [656]
1615 [762]
1940 [915]
1215 [573]
1540 [727]
1800 [850]
2185 [1031]
695 [328]
815 [384]
1005 [474]
1225 [578]
675 [318]
790 [373]
980 [462]
1200 [566]
1115 [626]
1310 [618]
1480 [698]
1675 [791]
1080 [510]
1365 [644]
1560 [736]
1890 [892]
1100 [519]
1375 [649]
1585 [748]
1880 [887]
1235 [582]
1505 [710]
1750 [826]
2110 [996]
660 [311]
770 [363]
965 [455]
1180 [557]
635 [300]
750 [354]
940 [443]
1150 [543]
1095 [517]
1270 [599]
1440 [679]
1625 [767]
1060 [500]
1350 [637]
1570 [740]
1850 [873]
1080 [510]
1360 [642]
1560 [736]
1820 [859]
1260 [595]
1475 [696]
1700 [802]
2040 [963]
615 [290]
725 [342]
920 [434]
1125 [531]
595 [281]
705 [332]
890 [420]
1090 [514]
1065 [503]
1235 [583]
1380 [651]
1555 [734]
1000 [472]
1260 [594]
1480 [698]
1765 [833]
1025 [484]
1280 [604]
1490 [703]
1745 [823]
1230 [580]
1425 [672]
1645 [776]
1965 [927]
570 [269]
680 [321]
875 [413]
1070 [505]
555 [262]
660 [311]
845 [399]
1025 [484]
1040 [491]
1195 [564]
1325 [625]
1480 [698]
940 [443]
1175 [554]
1390 [656]
1680 [793]
970 [458]
1200 [566]
1420 [670]
1675 [790]
1200 [566]
1375 [649]
1590 [750]
1890 [892]
Page 7
Rheem Manufacturing Company 7
ACCESSORIES—DOWNFLOW/HORIZONTAL
PLENUM DATA FOR COILS
Refer to Coil Specification Sheets for Plenum Data.
FOR LEFT SIDE (ALTERNATE) CONDENSATE DRAIN KIT:
RXGY-H01 (All Models)
[ ] Designates Metric Conversions
VENT TERMINATION KITS
CONCENTRIC: Horizontal/Vertical = RXGY-E03
HORIZONTAL TWO PIPE: RXGY-D02, RXGY-D03, RXGY-D04,
RXGY-G02
CONDENSATE PUMP KIT: RXGY-B01
NEUTRALIZER KIT: RXGY-A01
FOSSIL FUEL KIT: RXPF-F01
RXPF-F02 (TVA)
NON-COMBUSTIBLE FLOOR BASE: RXGC-B17
RXGC-B21
RXGC-B24
FOR HIGH ALTITUDES
HIGH ALTITUDE KIT*:
*For installations over 5000 ft.
CAUTION: Always follow National Fuel Gas Code (NFGC) guidelines
when converting furnaces for high altitudes.
For all installations above 2000 ft. the burner orifice size needs to be
recalculated and verified. 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).
*Filter racks are shipped without filters.
Filters shipped with furnace may be used or a suitable 1" [25.4 mm] filter.
LP CONVERSION KITS:
U.S./Canadian: RXGJ-FP21 or RXGJ-FP19
EXTERNAL FILTER RACK: RXGF-CC
INPUT BTU/HR [kW] HIGH ALTITUDE KIT NO.
60,000 [18] RXGY-F29
75,000 N [22] RXGY-F30
75,000 W [22] RXGY-F30
90,000 [26] RXGY-F31
105,000 [31] RXGY-F32
120,000 [35] RXGY-F33
FILTER RACK FILTER SIZES* INCHES [mm]
MODEL RGTK- RXGF-CC
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]
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. G11-488 REV. 5
Supersedes Form No. G11-488 Rev. 4
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