FRIEDRICH F-Series Gas Furnaces Owner’s Manual

FRIEDRICH F-Series Gas Furnaces

Specifications

• Model: FR801T DZ
• Product Line: EndeavorTM Line F-Series Gas Furnaces
• Efficiency: 80% A.F.U.E.
• Heating Stages: Single Stage
• Motor Type: Constant Torque
• Input Rates: 50-125 kBTU [14.6-36.6 kW]
• Configuration Options: Downflow

Product Usage Instructions

Installation

1. Ensure the furnace is placed on a level surface with proper clearance as per the dimensional data provided.
2. Connect the gas supply line to the furnace according to local codes and regulations.
3. Connect the electrical supply to the furnace following the manufacturer’s guidelines.

Operation

1. Set the thermostat to the desired temperature.
2. The furnace will automatically adjust its heating output based on the temperature setting.
3. Monitor the furnace for any unusual noises or smells during operation.

Maintenance

1. Regularly inspect and clean the air filters to ensure proper airflow.
2. Schedule annual maintenance checks by a qualified technician to keep the furnace in optimal condition.

FAQ

• Q: Can this furnace be used in mobile homes?
  A: No, this furnace is not approved or recommended for use in mobile homes.

• Q: What is the NOx emissions limit for this furnace?
  A: This furnace does not meet air district requirements of 14 ng/J NOx emissions limit and may be subject to a mitigation fee.

FR801T

• 80% A.F.U.E.† Heating Stages: Single Stage
• Motor Type: Constant Torque
• Input Rates: 50-125 kBTU [14.6-36.6 kW]
• Configuration Options: Downflow

Features and Benefits

• PlusOne® Diagnostics: Industry-first, 7-segment LED for quick & easy service
• PlusOne® Ignition System: Proven Direct Spark Ignition (DSI) for reliability and longevity
• Low Profile, 34-inch Cabinet: Makes our furnaces ideal for space-constrained installations
• Hemmed Cabinet & Door Edges and Quarter-turn Door Fasteners (Upflow/Horizontal only): Allows for safe, tool-less access and serviceability
• Removable Heat Exchanger: Improves serviceability. Aluminized steel construction provides maximum corrosion resistance and thermal fatigue reliability
• Blower Shelf Design: Ensures serviceability in all furnace orientations

Gas Furnaces

[ ] Designates Metric Conversions

AVAILABLE MODELS

FR801T0503A14DZNAS
FR801T0754A17DZNAS
FR801T0755A21DZNAS
FR801T1005A21DZNAS
FR801T1255A24DZ*NAS
STANDARD EQUIPMENT

100% Safety Lock Out
7 Segment LED
Aluminized Steel Heat Exchanger Design
Blower Compartment Door Safety Switch
Completely Assembled and Wired
Cool Fan Off Delay
Direct Drive Motor
Electronic Air Cleaner Connections
Field Selectable Heat Fan Off Delay
Flame Sense Current Diagnostics
Fully Insulated Heat Exchanger Cabinet
Humidifier Connections
Induced Draft Motor
Limit Controls
Low Speed Continuous Fan Option
Manual Shut-Off Valve
Multi-Speed Constant Torque Blower Motor
One Hour Automatic Retry
Power and Self-Test Diagnostics
Pressure Switch
Redundant Main Gas Control
Single Speed Option for Heating and Cooling Applications
Blower Insulation
Solid State Time On/Off Blower Control
Transformer

WARNING
THIS FURNACE IS NOT APPROVED OR RECOMMENDED FOR USE IN MOBILE HOMES

Physical Data and Specifications—Downflow Models

U.S. and Canadian Models

MODEL NUMBERS FR801T

Constant Tq-Dflow Series

| FR801T0503 A14DZNAS| FR801T0753 A17DZNAS| FR801T0755 A21DZNAS| FR801T1005 A21DZNAS| FR801T1255 *A24DZNAS**
---|---|---|---|---|---
Input-BTU/Hr [kW]| 50,000 [15]| 75,000 [22]| 75,000 [22]| 100,000 [29]| 125,000 [37]
Heating Capacity BTU/Hr [kW] ®| 40,000 [12]| 60,000 [18]| 60,000 [18]| 80,000 [23]| 100,000 [29]
Blower (D x W) [mm]| 11 x 6 [279 x 152]| 11 x 7 [279 x 178]| 11 x 7 [279 x 178]| 11 x 10 [279 x 254]| 11 x 10 [279 x 254]
Motor H.P. [W] Type| 1/2 [373]

5 Spd Constant Torque

| 3/4 [559.5]

5 Spd Constant Torque

| 3/4 [559.5]

5 Spd Constant Torque

| 3/4 [559.5]

5 Spd Constant Torque

| 1 [746]

5 Spd Constant Torque

Min. Circuit Ampacity| 9| 12| 14| 14| 15
Max. Overload Protection Device| 15| 15| 20| 20| 25
Motor Full Load Amps| 6.1| 9.6| 9.6| 9.6| 12.4
Heating Speed| Med| Med-Low| Med| Med| Med-High
Cooling Speed| High| High| High| High| High
Cooling in CFM [L/s] @ 0.5″wc [0.12 kPa] E.S.P.| 1301 [614]| 1200 [566]| 2000 [944]| 2000 [944]| 2000 [944]
Max. E.S.P. (In. W.C.) [kPa]| .9 [0.224]| .9 [0.224]| .9 [0.224]| .9 [0.224]| .9 [0.224]
Temperature Rise Range °F [°C]| 25-55 [13.9-30.6]| 35-65 [19.4-36.1]| 25-55 [13.9-30.6]| 30-60 [16.6-33.3]| 35-65 [19.4-36.1]
Approx. Shipping Weight (Lbs.) [kg]| 108.5 [49]| 120.5 [55]| 128.5 [58]| 140 [63]| 151 [68]
AFUE ©| 80.0%| 80.0%| 80.0%| 80.0%| 80.0%

NOTES : All models are 115V, 60HZ, 1 Ph. Gas connection size for all models is 1/2″ [12 mm] N.P.T.
© In accordance with D.O.E. test procedures.
® See Conversion Kit Index Form for high altitude derate.
*S=Standard, N=Low NOx

• This furnace does not meet air district requirements of 14 ng/J NOx emissions limit, and thus is subject to a mitigation fee of up to $450.
• This furnace is to be installed for propane firing only in air districts requiring 14 ng/J NOx emission limits. Operating in natural gas mode is in violation of these Rules.

[ ] Designates Metric Conversions

Downflow Dimensions

Dimensional Data—Downflow Models

MODEL FR801T-DZ| ****

A

| ****

B

| ****

C

| ****

D

| ****

E

| REDUCED CLEARANCES (IN.) [mm]
---|---|---|---|---|---|---
LEFT SIDE| RIGHT SIDE| BACK| TOP| FRONT| VENT
050| 14    [356]| 1227/32 [326]| 103/8 [264]| | 131/8 [333]| 0| 4 [102]| 0| 1 [25]| 3 [76]| 6 [152]
050417| 171/2 [445]| 1611/32 [415]| 121/8 [308]| | 165/8 [422]| 0| 3 [76]| 0| 1 [25]| 3 [76]| 6 [152]
075521| 21    [533]| 1927/32 [504]| 137/8 [352]| | 201/8 [511]| 0| 0| 0| 1 [25]| 3 [76]| 6 [152]
100| 21    [533]| 1927/32 [504]| 137/8 [352]| | 201/8 [511]| 0| 0| 0| 1 [25]| 3 [76]| 6 [152]
125| 241/2 [622]| 2311/32 [593]| 155/8 [397]| | 235/8 [600]| 0| 0| 0| 1 [25]| 3 [76]| 6 [152]

NOTES:

1. May require a 3″ [76 mm] to 4″ [102 mm] or 3″ [76 mm] to 5″ [127 mm] adapter.
2. May be 0″ [0 mm] with a type B vent.
3. May be 1″ [25 mm] with a type B vent.

Furnaces must be vented under the National Fuel Gas Code, ANSI Z223.1 and per local codes.

Blower Performance Data—Downflow Models

AIR FLOW PERFORMANCE – 80% SINGLE STAGE DOWNFLOW CONSTANT TORQUE

INPUT (BTU) CABINET WIDTH (IN)| AIRFLOW CONTROL SETTINGS| SPEED TAP/ WIRE COLORS| CFM [L/s] AIR DELIVERY

EXTERNAL STATIC PRESSURE INCHES WATER COLUMN [KPA]

0.1

[0.02]

| 0.2

[0.05]

| 0.3

[0.07]

| 0.4

[.10]

| 0.5

[0.12]

| 0.6

[0.15]

| 0.7

[0.17]

| 0.8

[.19]

| 0.9

[.22]

| 1.0

[.25]

50k 14″

| FACTORY SETTING FAN| LOW/RED| 909| 747| 618| 517| 439| 377| 326| 280| 234| 183
COOL| MEDIUM-LOW/ YELLOW| 982| 899| 828| 766| 712| 664| 620| 577| 534| 490
HEAT OR HEAT/COOL| MEDIUM/ PURPLE| 1027| 993| 958| 921| 882| 843| 802| 762| 721| 680
COOL| MEDIUM HIGH/ BLUE| 1172| 1130| 1093| 1060| 1030| 1001| 972| 941| 907| 869
FACTORY SETTING COOLING| HIGH/BLACK| 1296| 1262| 1232| 1204| 1177| 1150| 1123| 1094| 1063| 1029

75k 17″

| FACTORY SETTING FAN| LOW/RED| 1018| 957| 913| 866| 816| 772| 720| 670| 626| 588
HEAT OR HEAT/COOL| MEDIUM-LOW/ YELLOW| 1146| 1111| 1059| 1012| 967| 928| 889| 845| 800| 755
COOL| MEDIUM/ PURPLE| 1325| 1257| 1199| 1144| 1089| 1028| 975| 922| 871| 813
COOL| MEDIUM-HIGH/ BLUE| 1554| 1490| 1429| 1365| 1306| 1272| 1218| 1170| 1122| 1077
FACTORY SETTING COOLING| HIGH/BLACK| 1752| 1682| 1625| 1574| 1525| 1473| 1421| 1379| 1341| 1296

75k 21″

| FACTORY SETTING FAN| LOW/RED| 1011| 987| 928| 861| 796| 739| 675| 604| 553| 513
COOL| MEDIUM-LOW/ YELLOW| 1341| 1287| 1216| 1162| 1105| 1054| 1000| 952| 899| 847
HEAT OR HEAT/COOL| MEDIUM/ PURPLE| 1535| 1487| 1434| 1384| 1333| 1280| 1230| 1190| 1142| 1099
COOL| MEDIUM-HIGH/ BLUE| 1689| 1644| 1596| 1559| 1499| 1454| 1414| 1370| 1331| 1280
FACTORY SETTING COOLING| HIGH/BLACK| 1848| 1801| 1762| 1717| 1678| 1632| 1598| 1556| 1527| 1470

100k

21″

| FACTORY SETTING FAN| LOW/RED| 1123| 1035| 968| 897| 838| 768| 692| 618| 570| 525
COOL| MEDIUM-LOW/ YELLOW| 1421| 1365| 1316| 1266| 1219| 1157| 1105| 1052| 1004| 959
COOL| MEDIUM/ PURPLE| 1684| 1632| 1744| 1549| 1506| 1462| 1421| 1379| 1333| 1277
HEAT OR

.HEAT/COOL

| MEDIUM-HIGH/ BLUE| 1865| 1825| 1780| 1747| 1705| 1677| 1636| 1597| 1562| 1499
FACTORY SETTING COOLING| HIGH/BLACK| 1997| 1955| 1916| 1875| 1841| 1803| 1769| 1730| 1700| 1646

125k

24″

| FACTORY SETTING FAN| LOW/RED| 1127| 1064| 993| 931| 867| 805| 749| 687| 628| 578
COOL| MEDIUM-LOW/ YELLOW| 1438| 1381| 1330| 1277| 1227| 1171| 1118| 1061| 1024| 976
COOL| MEDIUM/ PURPLE| 1726| 1664| 1622| 1588| 1544| 1494| 1446| 1404| 1360| 1317
HEAT OR HEAT/COOL| MEDIUM-HIGH/ BLUE| 1883| 1832| 1789| 1756| 1711| 1678| 1617| 1587| 1551| 1495
FACTORY SETTING COOLING| HIGH/BLACK| 2209| 2166| 2129| 2090| 2059| 2010| 1976| 19144| 1911| 1875

Downflow Accessories

DOWNFLOW WARNING: Unit design is certified for installation on a 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.

Combustible Floor Base Dimensions

COMBUSTIBLE FLOOR BASE| USE WITH FURNACE SIZES| A

IN. [mm]

| B

IN. [mm]

| C

IN. [mm]

---|---|---|---|---
RXGC-B14| R801C050| 141/2 [368]| 131/4 [337]| 111/4 [286]
RXGC-B17| R801C075317| 18  [457]| 163/4 [425]| 143/4 [451]
RXGC-B21| R801C100521, R801C075521| 211/2 [546]| 201/4 [514]| 181/4 [464]
RXGC-B24| R801C125| 25  [635]| 233/4 [603]| 213/4 [552]

**RXGF-CC***

• FILTER RACK—Downflow top return mount. Requires (2) 14 x 20 Filters.

NOTE : Filter racks are shipped without filters.

• Filters available through PRO STOCK ®.

For High Altitudes:

• HIGH ALTITUDE OPTION CODE: U.S. & Canada –
  None is required for high altitudes.

• HIGH ALTITUDE CONVERSION KITS: U.S. & Canada –
  None is 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.

GENERAL TERMS OF LIMITED WARRANTY*

Friedrich® will furnish a replacement for any part of this product that fails in normal use and service within the applicable period stated, per 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.

Conditional Parts

• (Registration Required) ……………………………Ten (10) Years
• Heat Exchanger ………………………………..Twenty (20) Years

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.
© 2023 Rheem Manufacturing Company. Friedrich trademarks are owned by Rheem Manufacturing Company.
In keeping with its policy of continuous progress and product improvement, Friedrich reserves the right to make changes without notice.
Friedrich • 5600 Old Greenwood Road
Fort Smith, Arkansas 72908 • www.friedrich.com
Friedrich • 125 Edgeware Road, Unit 1 Brampton, Ontario • L6Y 0P5

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