Submittal Sheet
SPECIFICATIONS
Cogurations
• Upow / 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
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
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
GUH97M
Due to ongoing product improvements, specications 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 certication. All products meet applicable regulations in effect on date of
manufacture; however, certications are not necessarily granted for the life of a product. Therefore, it is the responsibility of the applicant to
determine whether a specic model qualies 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.”