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Blower Performance
GUH97M070B3M BLOWER PERFORMANCE (less filter)
HEATING BLOWER PERFORMANCE
BOTTOM RETURN AIR
Heating Adjust CFM Selections
Increase (+15%) Heat CFM
Increase (+7.5%) Heat CFM
Default Heat CFM
Decrease (-7.5% ) Heat CFM
Decrease (-15% ) Heat CFM
COOLING BLOWER PERFORMANCE
Cooling Adjust CFM
Selections
Increase (+10%) Cool CFM
Default Cool CFM
Decrease(-10%) Cool CFM
GUH97M070B3M BLOWER PERFORMANCE (less filter)
RIGHT SIDE RETURN AIR
HEATING BLOWER PERFORMANCE
Heating Adjust CFM Selections
Increase (15%) Heat CFM
Increase (+7.5%) Heat CFM
Default Heat CFM
Decrease (-7.5%) Heat CFM
Decrease(-15%) Heat CFM
COOLING BLOWER PERFORMANCE
Cooling Adjust CFM
Selections
Increase (+10%) Cool CFM
Default Cool CFM
Decrease (-10%) Cool CFM
The effect of static pressure is included in air volumes shown.
The following control configurations are available. See Installation Instructions for details and DIP switch settings.
Heat Modes Available (Heating Blower Performance Table):
Single stage thermostat:
- 40%, 70%. 100% input (three-stage) with time delays in-between
Two-stage thermostat:
- Variable Rate Capacity Mode - furnace automatically adjusts firing rate based on first- and second-stage cycle times
- W1 demand at 70% input, W2 demand at 100% input. No delay between stages
Cool Mode Available (Cooling Blower Performance table):
First stage COOL (two-stage air conditioning units only) is approximately 70% of the same second stage COOL speed position
Continuous Fan speeds are approximately 38% of the same second-stage COOL speed position minimum 300 cfm
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40%
50%
538
636
496
588
453
539
419
498
385
458
First Stage Cool Speed- cfm
Medium
Medium
Low
Low
High
600
740
840
555
665
770
500
600
680
40%
50%
531
625
490
579
449
533
413
487
378
442
First Stage Cool Speed- cfm
Medium
Medium
Low
Low
High
590
705
805
540
640
725
500
580
665
Issue 1809
Heating Input Range and Blower Volume - CFM
60%
70%
735
833
680
772
624
710
578
657
531
604
Blower Speed Selections
High
Low
(Default)
970
860
855
810
790
705
Heating Input Range and Blower Volume - CFM
60%
70%
718
812
667
756
616
700
561
635
506
571
Blower Speed Selections
High
Low
(Default)
955
840
820
750
720
685
80%
90%
931
1030
864
956
796
881
736
815
676
749
Second Stage Cool Speed-cfm
Medium
Medium
Low
High
1060
1215
960
1130
840
1005
80%
90%
906
999
845
933
784
867
709
783
635
699
Second Stage Cool Speed-cfm
Medium
Medium
Low
High
1050
1205
945
1130
805
990
100%.
1128
1048
967
895
822
High
(Default)
1365
1265
1140
100%
1093
1022
951
857
763
High
(Default)
1355
1230
1110
507028-03
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