Submittal Sheet

ManualsBrandsComfort-Aire ManualsGas FurnacesGUH 4 Ton 90,000 BTU Air Handler, 97% Gas Furnace, Modulating

SPECIFICATIONS

Cogurations

• Upow / Horizontal

Heat Exchanger Design

• 409 stainless steel primary heat exchanger with crimped non-welded

construction

• AL 29-4c stainless steel secondary heat exchanger

Cabinet Design

• Compact 33” height

• Standardized widths for easy coil t

Air Delivery System

• ECM variable speed blower motor

• Easily removable slide-out blower design

Controls

• Modulating gas valve

• Works with the conventional 24V T-Stat

• Self diagnostics saves last 10 fault codes regardless of power interruption

Venting

• Category 4 direct vent appliance (2 pipe only)

Installation Features

• Left or right utility connections

• Zero step horizontal conversion

• Removable floor base for bottom return air

ACCESSORY LIST

CATALOG NUMBER DESCRIPTION

External Filter Rack Kits

AEFR1 1 pack (16 x 25)

AEFR10 10 pack (16 x 25)

Natural to LP Kits

68W77 Modulating 97% (includes gas valve)

Return Air Base

68W62 17.5" B Width

68W63 21.0" C Width

68W64 24.5" D Width

Night Service Kits

89W52 Modulating

Horizontal Suspension Kit

51W10 80% & 90% Kit

Flush Mount Termination (90% Furnaces only) US Only

51W11 2" & 3" Vent Version

Concentric Vent Kit (90% Furnaces only) US Only

71M80 1-1/2" Vent Version

69M29 2" Vent Version

60L46 3" Vent Version

For vent length and clearances to combustibles, please reference installation instructions.

SP-2M 11/19 CA-97M_SPEC

BLOWER PERFORMANCE DATA: SIDE INLET WITH RETURN AIR BASE

Model

Motor

Size

(hp)

Blower

Size

Temp

Rise

F°

Heating

CFM @ 0" - 0.5" w.c.

Cooling

Stages

Speed

Adjust-

ment

Cooling

CFM @ 0" - 0.8" w.c.

* *

40%

Input

70%

Input

100%

Input Low

Medium

Low

Medium

High

Default

UPFLOW / HORIZONTAL

GUH97M090C4M

3/4 HP 11 x 11

50 - 80

Max. Input

+15% 828 1213 1597

2nd Stage

+10% 1162 1360 1533 1742

+7.5% 766 1132 1499 Default 1064 1240 1400 1594

Default 703 1052 1401

-10% 928 1133 1298 1441

35 - 65

Min.

Input

1st

Stage

+10% 844 955 1124 1280

-7.5% 650 986 1323 Default 775 910 1011 1173

-15% 596 921 1245 -10% 695 816 932 1045

GUH97M090C5M

1 HP 11 x 11

60 - 90

Max. Input

+15% 686 1138 1589

2nd Stage

+10% 1329 1560 1740 1982

+7.5% 626 1060 1494 Default 1177 1414 1586 1807

Default 566 983 1399

-10% 1044 1261 1432 1619

35 - 65

Min.

Input

1st

Stage

+10% 913 1037 1230 1415

-7.5% 502 895 1288 Default 827 953 1088 1278

-15% 437 806 1176 -10% 741 855 995 1117

GUH97M110C5M

1 HP 11 x 11

50 - 80

Max. Input

+15% 893 1419 1945

2nd Stage

+10% 1268 1487 1726 1913

+7.5% 814 1329 1843 Default 1158 1369 1568 1764

Default 736 1238 1741

-10% 1030 1224 1393 1575

35 - 65

Min.

Input

1st

Stage

+10% 918 1022 1205 1371

-7.5% 680 1139 1599 Default 839 955 1084 1235

-15% 623 1040 1457 -10% 760 865 984 1109

GUH97M135D5M

1 HP 11 x 11

50 - 80

Max. Input

+15% 992 1487 1983

2nd Stage

+10% 1303 1536 1687 1975

+7.5% 907 1382 1858 Default 1164 1380 1584 1762

Default 822 1277 1732

-10% 1065 1252 1404 1604

35 - 65

Min.

Input

1st

Stage

+10% 918 1061 1214 1382

-7.5% 761 1188 1615 Default 829 960 1091 1265

-15% 700 1099 1497 -10% 739 858 991 1116

DIMENSIONS (IN.)

Model A B C D

UPFLOW/HORIZONTAL

GUH97M070B3M 17-1/2 16-3/8 16 7-5/8

GUH97M090C3M 21 19-7/8 19-1/2 9-3/8

GUH97M090C4M 21 19-7/8 19-1/2 9-3/8

GUH97M090C5M 21 19-7/8 19-1/2 9-3/8

GUH97M110C5M 21 19-7/8 19-1/2 9-3/8

GUH97M135D5M 24-1/2 23-3/8 23 11-1/8

6-1/2

MODULATING VARIABLE

SPEED GAS FURNACE

97%

Warranty

Standard warranty or Extended warranty available with product registration.

See warranty document for details or visit www.marsdelivers.com

GUH97M

Due to ongoing product improvements, specications and dimensions are subject to change and correction without notice or incurring

obligations. Determining the application and suitability for use of any product is the responsibility of the installer. Additionally, the installer is

responsible for verifying dimensional data on the actual product prior to beginning any installation preparations. Third party incentive and rebate

programs have precise requirements as to product performance and certication. All products meet applicable regulations in effect on date of

manufacture; however, certications are not necessarily granted for the life of a product. Therefore, it is the responsibility of the applicant to

determine whether a specic model qualies for these incentive/rebate programs.

“This product complies with all California product

labeling laws including, but not limited to, the Safe

Drinking W

ater and Toxic Enforcement Act of 1986,

more commonly known as Proposition 65.”

Summary of content (6 pages)

PAGE 1
GUH97M MODULATING VARIABLE SPEED GAS FURNACE 97% SPECIFICATIONS Cofigurations • Upflow / Horizontal Heat Exchanger Design • 409 stainless steel primary heat exchanger with crimped non-welded construction • AL 29-4c stainless steel secondary heat exchanger Cabinet Design • Compact 33” height • Standardized widths for easy coil fit Air Delivery System • ECM variable speed blower motor • Easily removable slide-out blower design Controls • Modulating gas valve • Works with the conventional 24V T-Stat • Self di
PAGE 2
MODEL NUMBER GUIDE G UH 97 M 070 B 3 M REV CODE REVISION GAS G = GAS FURNACE NOM. CFM X 100 3 TON ADD ON COOLING 4 TON ADD ON COOLING 5 TON ADD ON COOLING CONFIGURATION UH = UPFLOW/HORIZONTAL DD = DOWNFLOW AFUE 97 = 97% EFFICENCY CABINET WIDTH B = 17.5” WIDTH C = 21.0” WIDTH D = 24.5” WIDTH STAGES/MOTOR M = MODULATING W/VARIABLE SPEED ECM BTUH INPUT HEATING INPUT X 1000 PHYSICAL AND ELECTRICAL DATA VoltsHertzPhase Max. Time Delay Breaker or Fuse Nominal F.L.A. Trans. (V.A.) Approx.
PAGE 3
BLOWER PERFORMANCE DATA: BOTTOM INLET BL Heating CFM @ 0" - 0.5" w.c. Model Motor Size (hp) Blower Size Temp Rise F° 50 - 80 Max. Input GUH97M070B3M GUH97M090C3M 1/2 HP 1/2 HP 10 x 9 GUH97M090C5M 1 HP GUH97M135D5M 1 HP +15% 538 833 1128 +7.5% 496 772 1048 967 35 - 65 Min. Input -7.5% 419 657 895 -15% 385 604 822 +15% 734 1014 1295 60 - 90 Max. Input +7.
PAGE 4
BLOWER PERFORMANCE DATA: SIDE INLET h ult Model Motor Size (hp) Heating CFM @ 0" - 0.5" w.c. Blower Temp Rise Size F° 50 - 80 Max. Input 9 9 GUH97M070B3M 1/2 HP 10 x 9 35 - 65 Min. Input 0 60 - 90 Max. Input GUH97M090C3M 1/2 HP 10 x 9 2 35 - 65 Min. Input 6 7 5 9 UPFLOW / HORIZONTAL 1 50 - 80 Max. Input GUH97M090C4M 3/4 HP 11 x 11 35 - 65 Min. Input 50 - 80 Max. Input GUH97M090C5M 1 HP 11 x 11 35 - 65 Min. Input 5 0 50 - 80 Max.
PAGE 5
BLOWER PERFORMANCE DATA: SIDE INLET WITH RETURN AIR BASE Model Motor Size (hp) Blower Size Temp Rise F° 50 - 80 Max. Input UPFLOW / HORIZONTAL GUH97M090C4M 3/4 HP 11 x 11 35 - 65 Min. Input 60 - 90 Max. Input GUH97M090C5M 1 HP 11 x 11 35 - 65 Min. Input 50 - 80 Max. Input GUH97M110C5M 1 HP 11 x 11 35 - 65 Min. Input 50 - 80 Max. Input GUH97M135D5M 1 HP 11 x 11 35 - 65 Min. Input Heating CFM @ 0" - 0.5" w.c. ** 40% Input 70% Input 100% Input +15% +7.
PAGE 6
GUH97M ACCESSORY LIST CATALOG NUMBER DESCRIPTION External Filter Rack Kits AEFR1 1 pack (16 x 25) AEFR10 10 pack (16 x 25) Natural to LP Kits 68W77 Modulating 97% (includes gas valve) Return Air Base 68W62 17.5" B Width 68W63 21.0" C Width 68W64 24.