Rheem R801T DF Series User manual

Rheem Classic Plus™Series
Downflow Gas Furnace
FORM NO. G11-549
•80% residential Gas Furnace CSA certified
•PlusOne
™
Diagnostics — 7 Segment LED all units
•PlusOne
™
Ignition System – DSI for reliability and longevity
•Heat exchanger is removable for improved serviceability.
Aluminized steel construction provides maximum corrosion
resistance and thermal fatigue reliability.
•Low profile 34" cabinet ideal for space constrained
installations
•Integrated Control board features dip switches for easy
system set up
•QR code for quick access to product information from your
smart phone or tablet
•Constant Torque electrically commutated motor
Air Gas Furnaces
R801T (DF) Series
✝A.F.U.E. (Annual Fuel Utilization Efficiency) calculated in accordance with
Department of Energy test procedures.
R801T Downflow Series
80% A.F.U.E.†
Input Rates 75-125 kBTU

Air Table of Contents
R801T (DF) 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

HEAT EXCHANGER
INTEGRATED
FURNACE
CONTROL
DIRECT SPARK IGNITOR
WITH REMOTE SENSE
IN-SHOT BURNERS
DRAFT INDUCER MOTOR
Air Standard & Optional Equipment
R801T (DF) Series
3
STANDARD EQUIPMENT
Completely assembled and wired; induced draft; pressure
switch; redundant main gas control; blower compartment door
safety switch; solid state time on/time off blower control; limit
control; manual shut-off valve, pressure regulator for natural
and L.P. (propane) gas; transformer; direct drive multi-speed
blower motor. Furnaces are equipped with cooling/heating
relay and transformer (40VA) ready for air conditioning
applications. (Please note: a thermostat is not included as
standard equipment.) Flame sensor diagnostics; on-board
twinning; fused-protection (secondary), 3rd speed option for
continuous fan; common heat/cool terminal.
OPTIONAL EQUIPMENT
NOTE: Furnace is not listed for use with fuels other than
natural or L.P. (propane) gas.
The complete terms of limited and other warranties are
available at our sales office, or through local installer.
All models can be converted by a qualified Rheem 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 Rheem parts distributor.
For L.P. (propane) operation, refer to Conversion Kit Index Form.
NOTE: For natural and L.P. (propane) gas models, direct spark
ignition is 100% lockout type.
WARNING
THIS FURNACE IS NOT APPROVED
OR RECOMMENDED
FOR USE IN MOBILE HOMES
CONSTANT TORQUE ECM MOTOR

MODEL NUMBERS
R801T (DF) SERIES R801TA075317Z*A R801TA075521Z*A
Input
in BTU’s/Hr [kW] ➁
75,000
[22]
75,000
[22]
Heating Capacity
in BTU’s/Hr [kW] ➀
60,000
[18]
60,000
[18]
High Altitude Input
in BTU’s/Hr [kW]*
67,500
[20]
67,500
[20]
Blower (D x W) in inches [mm] 11 x 7
[279 x 178]
11 x 10
[279 x 254]
Motor H.P.-Speeds -
Type [W]
1/2hp, 5spd,
X-13 [373]
1hp, 5spd,
X-13 [746]
Motor Full Load Amps 6.8 10.9
Heating Speed (factory setting) MED-HIGH MED
Cooling Speed (factory setting) HIGH HIGH
Cooling in CFM [L/s] @ 0.5"wc
[0.12 kPa] E.S.P. (nominal)
1200
[566]
2000
[944]
Rated E.S.P.
in "wc [kPa]
0.5
[0.12]
0.5
[0.12]
Temperature Rise Range
in °F [°C]
30-60
[17-33]
25-55
[13.9-30.6]
Max Outlet Air
in °F [°C]
165
[73.8]
165
[73.8]
Approx. Shipping Weight
in Lbs. [kg]
105
[48]
120
[54]
High Altitude Output Capacity
in BTU’s/Hr [kW]*
53,500
[16]
53,500
[16]
Heat Ext. Static Pressure
in "wc [kPa]
0.12
[0.029]
0.12
[0.029]
R801TA100521Z*A R801TA125524Z*A
100,000
[29]
125,000
[37]
72,500
[21]
89,000
[26.1]
81,000
[24]
99,000
[29]
0.15
[0.037]
0.2
[0.05]
90,000
[26]
112,500
[33]
11 x 10
[279 x 254]
11 x 10
[279 x 254]
1hp, 5spd,
X-13 [746]
1hp, 5spd,
X-13 [746]
10.9 10.9
MED-HIGH MED-HIGH
HIGH HIGH
2000
[944]
2000
[944]
0.5
[0.12]
0.5
[0.12]
30-60
[17-33]
35-65
[19.4-36.1]
190
[87.7]
185
[85.0]
120
[54]
140
[63]
80.0% 80.0%
AFUE - Electronic Ignition Modules ➀80.0% 80.0%
NOTES: All models are 115V, 60HZ, 1 Ø . Gas connection size for all models is 1/2" N.P.T.
➀In accordance with D.O.E. test procedures.
➁See Conversion Kit Index Form for high altitude derate in U.S. applications.
[ ] Designates Metric Conversions
Air Model Features/Physical Data & Specifications
R801T (DF) Series
4
Physical Data and Specifications
U.S. and Canadian Models
•80% residential Gas Furnace CSA certified
•PlusOne
™
Diagnostics — 7 Segment LED all units
•PlusOne
™
Ignition System – DSI for reliability and longevity
•Heat exchanger is removable for improved serviceability.
Aluminized steel construction provides maximum corrosion
resistance and thermal fatigue reliability.
•Low profile 34" cabinet ideal for space constrained
installations
•Integrated Controls board features dip switches for easy
system set up
•QR code for quick access to product information from your
smart phone or tablet
•Constant Torque electrically commutated motor
Model Features

Air Model Number Identification
R801T (DF) Series
5
Model Number Identification—Downflow Models
R80 1 T A 075 417 Z S A
Rheem 80 =
80% AFUE
1 = Single Stage T =
Constant
Torque
Design Series
A = 1st Design
Input
BTU/HR [kW]
075 = 75,000 [22]
100 = 100,000 [29]
125 = 125,000 [37]
3 = Up to
3 Ton
4 = 21/2to
4 Ton
5 = 31/2to
5 Ton
Cabinet
Width
17 = 17.5"
21 = 21".0
24 = 24.5"
Z = Down
and Zero
Clearance
Downflow
X = Low NOx
S = Standard
Revision-
Marketing
(A – First Time
Release)
[ ] Designates Metric Conversions

Air Dimensional Data
R801T (DF) Series
6
Downflow Dimensions
A
REDUCED CLEARANCES (IN.) [mm]
LEFT
SIDE
RIGHT
SIDE BACK TOP FRONT VENT SHIP. WGTS. (LBS.) [kg]
075317 171/2[445] 1611/32 [415] 121/8[308] ➀165/8[422] 0 3 ➁0 1 [25] 3 [76] 6 [152] ➂105 [47.6]
075521 21 [533] 1927/32 [504] 137/8[352] ➀201/8[511] 0 00 1 [25] 3 [76] 6 [152] ➂120 [54.4]
100 21 [533] 1927/32 [504] 137/8[352] ➀201/8[511] 0 00 1 [25] 3 [76] 6 [152] ➂120 [54.4]
125 241/2[622] 2311/32 [593] 155/8[397] ➀235/8[600] 0 0 0 1 [25] 3 [76] 6 [152] ➂140 [63.5]
MODEL
R801T
(DOWNFLOW)
SERIES
B C D E
Dimensional Data
NOTES: ➀May require a 3" [76 mm] to 4" [102 mm] or 3" [76 mm] to 5" [127 mm] adapter.
➁May be 0" [0 mm] with type B vent.
➂May be 1" [25 mm] with type B vent.
Furnaces must be vented in accordance with the National Fuel Gas Code, ANSI Z223.1 and in accordance with local codes.
[ ] Designates Metric Conversions

AIR FLOW PERFORMANCE - (-)801T SERIES (Downflow) MODELS
MODEL
MOTOR H.P. [W]
BLOWER SIZE
IN [mm]
SPEED
TAP
CFM [L/s] AIR DELIVERY
EXTERNAL STATIC PRESSURE INCHES WATER COLUMN [kPa]
0.1 [.02] 0.2 [.05] 0.3 [.07] 0.5 [.12] 0.6 [.15] 0.8 [.19]
(-)801TA075317ZSA
1/2 [373]
11 x 7
[279 x 178]
Low
Med. Lo
Med
Med. Hi
High
916
993
1205
1367
1475
803
952
1158
1333
1444
669
910
1124
1300
1416
561
827
1056
1236
1354
504
793
1024
1203
1329
421
706
950
1140
1264
(-)801TA075521ZSA
1 [748]
11 x 10
[279 x 254]
Low
Med. Lo
Med
Med. Hi
High
1198
1411
1608
1918
2122
1105
1358
1564
1877
2083
1093
1317
1529
1840
2054
931
1227
1451
1767
1977
901
1196
1416
1706
1945
791
1093
1340
1636
1874
(-)801TA100521ZSA
1 [748]
11 x 10
[279 x 254]
Low
Med. Lo
Med
Med. Hi
High
1240
1405
1600
1903
2072
1120
1364
1561
1877
2028
1073
1317
1526
1833
2006
974
1232
1445
1766
1940
917
1181
1403
1711
1908
799
1083
1325
1631
1840
(-)801TA125524ZSA
1 [748]
11 x 10
[279 x 254]
Low
Med. Lo
Med
Med. Hi
High
1225
1302
1553
1902
2403
1073
1240
1503
1859
2369
988
1191
1455
1822
2332
864
1074
1370
1722
2246
795
1027
1313
1686
2190
697
932
1237
1602
2059
NOTE: Bold data is factory heating tap
[ ] Designates Metric Conversions
Air Blower Performance Data
R801T (DF) Series
7
Blower Performance Data—Downflow Models

Air Accessories
R801T (DF) Series
8
DOWNFLOW ACCESSORIES
DOWNFLOW WARNING: Unit design is certified for installation on non-
combustible floor. A special factory supplied combustible floor sub-
base is required when installing on a combustible floor. Failure to install
the sub-base may result in fire, property damage and personal injury.
RXGF-CC*
FILTER RACK—Downflow top return mount. Requires (2) 14 x 20 Filters.
NOTE: Filter racks are shipped without filters.
*Filters available through PROSTOCK ®.
FOR HIGH ALTITUDES:
HIGH ALTITUDE OPTION CODE: U.S. & Canada –
None required for high altitudes.
HIGH ALTITUDE CONVERSION KITS: U.S. & Canada –
None required for high altitudes.
80+ HIGH ALTITUDE INSTRUCTIONS
Caution: Always follow National Fuel Gas Code (NFGC) guidelines when
converting for high altitudes.
High altitude option codes are not required for these models. However, the
burner orifice size needs to be recalculated and verified at elevations above
2000 ft. 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.
COMBUSTIBLE FLOOR BASE DIMENSIONS
COMBUSTIBLE
FLOOR BASE
USE WITH
FURNACE SIZES
A
IN. [mm]
B
IN. [mm]
C
IN. [mm]
RXGC-B17 R801T075317 18 [457] 163/4[425] 143/4[451]
RXGC-B21 R801T100521, R801T075521 211/2[546] 201/4[514] 181/4[464]
RXGC-B24 R801T125 25 [635] 233/4[603] 213/4[552]
[ ] Designates Metric Conversions

Air Limited Warranty
R801T (DF) 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.
Heat Exchanger........................................Twenty (20 Years
Conditional Parts (Registration Required) ........Ten (10) Years

Air Notes
R801T (DF) Series
10