830CA: Installation, Start–Up, Operating and Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
27
See NOTES following table.
1.Nominal 350 CFM/ton cooling airflow is delivered with SW1-5 and SW4-3 set to OFF.
Set SW1-5 to ON for nominal 400 CFM/ton (+15% airflow).
Set SW4-3 to ON for nominal 325 CFM/ton (-7% airflow).
Set both SW1-5 and SW4-3 on ON for nominal 370 CFM/ton (+7% airflow).
This applies to Cooling and Low-Cooling airflow, but does not affect continuous fan airflow.
The above adjustments in airflow are subject to motor horsepower range/capacity.
2.Maximum cooling airflow is achieved when switches SW2-1, SW2-2, SW2-3 and SW1-5 are set to ON, and SW4-3 is set to OFF.
3.All heating CFM's are when comfort/efficiency adjustment switch (SW1-4) is set to OFF
4.Ductwork must be sized for heating CFM within the operational range of ESP. Operation within the blank areas of the chart is not recommended because heat operation will be above 1.0
ESP.
5.All airflows on 21" casing size furnaces are 5% less on side return only installations.
Size:
30080C21
Clg/CF Switch settings
External Static Pressure (ESP)
Clg Switches
SW2-3
SW2-2
SW2-1
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Clg Default:
OFF
OFF
OFF
1905
1920
1935
1945
1950
1945
1935
1930
1920
1905
CF Switches
SW3-3
SW3-2
SW3-1
Low-Clg Default:
OFF
OFF
OFF
1905
1920
1935
1945
1950
1945
1935
1930
1920
1905
Cooling Airflow
(SW2)
Low-Cooling Airflow
(SW3)
OFF
OFF
ON
785
765
775
See Note 4
OFF
ON
OFF
930
975
990
985
990
1000
985
See Note 4
OFF
ON
ON
1130
1155
1150
1175
1190
1195
1215
1215
1215
1215
ON
OFF
OFF
1345
1345
1350
1370
1370
1365
1365
1355
1345
1335
ON
OFF
ON
1550
1560
1580
1575
1580
1565
1555
1540
1535
1525
ON
ON
OFF
1905
1920
1935
1945
1950
1945
1935
1930
1920
1905
ON
ON
ON
2300
2315
2320
2325
2315
2305
2280
2240
2245
2215
Maximum Clg Airflow
2405
2410
2415
2400
2390
2360
2305
2275
2255
2215
CF Switches
SW3-3
SW3-2
SW3-1
Cont. Fan Default:
OFF
OFF
OFF
785
765
775
See Note 4
Continuous Fan
Airflow
(SW3)
OFF
OFF
ON
785
765
775
See Note 4
OFF
ON
OFF
930
975
990
985
990
1000
985
See Note 4
OFF
ON
ON
1130
1155
1150
1175
1190
1195
1215
1215
1215
1215
ON
OFF
OFF
1130
1155
1150
1175
1190
1195
1215
1215
1215
1215
ON
OFF
ON
1130
1155
1150
1175
1190
1195
1215
1215
1215
1215
ON
ON
OFF
1130
1155
1150
1175
1190
1195
1215
1215
1215
1215
ON
ON
ON
1130
1155
1150
1175
1190
1195
1215
1215
1215
1215
Heating (SW1)
Heating Airflow
1550
1570
1585
1580
1565
1555
1550
1545
1545
1535
Size:
60100C21
Clg/CF Switch settings
External Static Pressure (ESP)
Clg Switches
SW2-3
SW2-2
SW2-1
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Clg Default:
OFF
OFF
OFF
1785
1800
1805
1830
1830
1845
1855
1860
1850
1840
CF Switches
SW3-3
SW3-2
SW3-1
Low-Clg Default:
OFF
OFF
OFF
1785
1800
1805
1830
1830
1845
1855
1860
1850
1840
Cooling Airflow
(SW2)
Low-Cooling Airflow
(SW3)
OFF
OFF
ON
635
630
See Note 4
OFF
ON
OFF
785
820
865
See Note 4
OFF
ON
ON
1040
1045
1070
1085
1130
See Note 4
ON
OFF
OFF
1205
1220
1245
1280
1290
1295
1290
1280
See Note 4
ON
OFF
ON
1380
1425
1445
1465
1480
1475
1490
1485
1455
1460
ON
ON
OFF
1785
1800
1805
1830
1830
1845
1855
1860
1850
1840
ON
ON
ON
2170
2155
2175
2195
2185
2195
2190
2180
2160
2100
Maximum Clg Airflow
2200
2220
2245
2260
2260
2260
2255
2225
2170
2100
CF Switches
SW3-3
SW3-2
SW3-1
Cont. Fan Default:
OFF
OFF
OFF
635
630
See Note 4
Continuous Fan
Airflow
(SW3)
OFF
OFF
ON
635
630
See Note 4
OFF
ON
OFF
785
820
865
See Note 4
OFF
ON
ON
1040
1045
1070
1085
1130
See Note 4
ON
OFF
OFF
1205
1220
1245
1280
1290
1295
1290
1280
See Note 4
ON
OFF
ON
1380
1425
1445
1465
1480
1475
1490
1485
1455
1460
ON
ON
OFF
1380
1425
1445
1465
1480
1475
1490
1485
1455
1460
ON
ON
ON
1380
1425
1445
1465
1480
1475
1490
1485
1455
1460
Heating (SW1)
Heating Airflow
3
1785
1800
1765
1785
1800
1820
1830
1835
1825
1810
Table 11 – Air Delivery - CFM (With Filter) (Continued)
(SW1-5 and SW4-3 set to OFF, except as indicated. See Notes 1 and 2)