Goodman *MVM96 Installation Instructions Manual page 42

Modulating gas furnace
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may require specific quantity of air, consult installation instruc-
tions of those devices for requirements.
3. Knowing the furnace model, locate the high stage cooling
air flow table. Look up the cooling air flow determined in
step 2 and find the required cooling speed and adjustment
setting.
Example:
A *MVM960603BX furnace installed with a
2.5 ton air conditioning system. The air flow
needed is 1000 CFM. Looking at the cooling
speed chart for *MVM960603BX, find the air
flow closest to 1000 CFM. A cooling airflow
of 1000 CFM can be attained by selecting
the cooling speed "C" and the adjustment
to "normal".
Model
*CVM960604CX*
*CVM960805DX*
*CVM961005DX*
*MVM960603BX*
*MVM960805CX*
*MVM961005DX*
*MVM961155DX*
*100% CFM shown. CFM will vary proportionally with the gas valve
BT U/H input.
4. Continuous fan speed is selectable at 25%, 50%, 75%
or 100% of the furnace's maximum airflow capability.
Example:
If the furnace's maximum airflow capability is
2000 CFM, the continuous fan speed at 25%
will be 0.25 x 2000 or 500 CFM.
5. Locate the blower speed selection DIP switches on the
integrated control module. Select the desired "cooling"
speed tap by positioning switches 1 and 2 appropriately.
Select the desired "adjust" tap by positioning switches 9
and 10 appropriately. Refer to the DIP switch chart for
switch positions and their corresponding taps. Verify CFM
by noting the number displayed on the dual 7-segment
LED display.
Low
High
100%
Tap
Stage
Stage
Heat
Cool
Cool
*CFM
A
370
660
1220
B
540
860
1340
C
790
1150
1460
D
980
1470
1590
A
530
900
1600
B
730
1100
1710
C
930
1430
1800
D
1220
1880
1910
A
500
780
1730
B
740
1070
1770
C
920
1380
1840
D
1160
1780
1870
A
390
630
950
B
550
800
1050
C
680
1000
1170
D
800
1210
1270
A
540
830
1600
B
750
1090
1690
C
980
1460
1800
D
1210
1800
1890
A
510
790
1810
B
710
1100
1850
C
910
1410
1890
D
1160
1830
1940
A
510
790
1810
B
710
1100
1850
C
910
1410
1890
D
1160
1830
1940
6. The multi-speed circulator blower also offers several
custom ON/OFF ramping profiles for cooling. These
profiles may be used to enhance cooling performance
and increase comfort level. The ramping profiles are
selected using DIP switches 7 and 8. Refer to the
bullet points below for a description of each ramping
profile. Verify CFM by noting the number displayed on
the dual 7-segment LED display.
Profile A provides only an OFF delay of one (1) minute at
100% of the cooling demand airflow.
100% CFM
OFF
Profile B ramps up to full cooling demand airflow by first
stepping up to 50% of the full demand for 30 seconds. The
motor then ramps to 100% of the required airflow. A one (1)
minute OFF delay at 100% of the cooling airflow is provided.
50% CFM
OFF
1/2 min
Profile C ramps up to 85% of the full cooling demand
airflow and operates there for approximately 7 1/2 minutes.
The motor then steps up to the full demand airflow. Profile
C also has a one (1) minute 100% OFF delay.
OFF
Profile D ramps up to 50% of the demand for 1/2 minute,
then ramps to 85% of the full cooling demand airflow and
operates there for approximately 7 1/2 minutes. The motor
then steps up to the full demand airflow. Profile D has a 1/
2 minute at 50% airflow OFF delay.
OFF
7. Select the heating speed for your model from the heating
speed table in this manual. The "adjust" setting (already
established by the cooling speed selection) determines
which set of speeds are available. The selected speed
must provide a temperature rise within the rise range listed
with the particular model.
8. Select the desired "heating" speed tap by positioning
switches 3 and 4 appropriately. Refer to the airflow table.
Verify CFM by noting the number displayed on the dual 7-
segment LED display.
42
100% CFM
1 min
100% CFM
100% CFM
1 min
100% CFM
Airflow Table
OFF
OFF
OFF
OFF

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