Carrier 58CU0A Series Installation, Start-Up, Operating And Service And Maintenance Instructions page 31

080C21--- 20
Size:
Clg Switches SW2--- 3
Clg Default: OFF
CF Switches SW3--- 3
Low --- Clg Default: OFF
OFF
OFF
OFF
Cooling Airflow
(SW2)
ON
ON
Low --- Cooling
Airflow (SW3)
ON
ON
CF Switches SW3--- 3
Cont. Fan Default: OFF
OFF
OFF
OFF
Continuous Fan
Airflow ON
(SW3)
ON
ON
ON
Heating (SW1) Heating Airflow
100C21--- 20
Size:
Clg Switches SW2--- 3
Clg Default: OFF
CF Switches SW3--- 3
Low--- Clg Default: OFF
OFF
OFF
OFF
Cooling Airflow
(SW2)
ON
ON
Low--- Cooling
Airflow (SW3)
ON
ON
CF Switches SW3--- 3
Cont. Fan Default: OFF
OFF
OFF
OFF
Continuous Fan
Airflow ON
(SW3)
ON
ON
ON
Heating (SW1)
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.
Air Delivery - - CFM continued (with Filter)*
(SW1--- 5 and SW4--- 3 set to OFF, except as indicated. See notes 1 and 2)
Clg/CF Switch settings
SW2--- 2 SW2--- 1
OFF OFF
SW3--- 2 SW3--- 1
OFF OFF
OFF ON
ON OFF
ON ON
OFF OFF
OFF ON
ON OFF
ON ON
2
Maximum Clg Airflow
SW3--- 2 SW3--- 1
OFF OFF
OFF ON
ON OFF
ON ON
OFF OFF
OFF ON
ON OFF
ON ON
3
Clg/CF Switch settings
SW2--- 2 SW2--- 1
OFF OFF
SW3--- 2 SW3--- 1
OFF OFF
OFF ON
ON OFF
ON ON
OFF OFF
OFF ON
ON OFF
ON ON
2
Maximum Clg Airflow
SW3--- 2 SW3--- 1
OFF OFF
OFF ON
ON OFF
ON ON
OFF OFF
OFF ON
ON OFF
ON ON
3
Heating Airflow
External Static Pressure (ESP)
0.1 0.2 0.3 0.4
1905 1920 1935 1945
1905 1920 1935 1945
785 765 775
930 975 990 985
1130 1155 1150 1175
1345 1345 1350 1370
1550 1560 1580 1575
1905 1920 1935 1945
2300 2315 2320 2325
2405 2410 2415 2400
785 765 775
785 765 775
930 975 990 985
1130 1155 1150 1175
1130 1155 1150 1175
1130 1155 1150 1175
1130 1155 1150 1175
1130 1155 1150 1175
1550 1570 1585 1580
External Static Pressure (ESP)
0.1 0.2 0.3 0.4
1785 1800 1805 1830
1785 1800 1805 1830
635 630
785 820 865
1040 1045 1070 1085
1205 1220 1245 1280
1380 1425 1445 1465
1785 1800 1805 1830
2170 2155 2175 2195
2200 2220 2245 2260
635 630
635 630
785 820 865
1040 1045 1070 1085
1205 1220 1245 1280
1380 1425 1445 1465
1380 1425 1445 1465
1380 1425 1445 1465
1785 1800 1765 1785
31
0.5 0.6 0.7 0.8 0.9
1950 1945 1935 1930 1920
1950 1945 1935 1930 1920
See Note 4
990 1000 985 See Note 4
1190 1195 1215 1215 1215
1370 1365 1365 1355 1345
1580 1565 1555 1540 1535
1950 1945 1935 1930 1920
2315 2305 2280 2240 2245
2390 2360 2305 2275 2255
See Note 4
See Note 4
990 1000 985 See Note 4
1190 1195 1215 1215 1215
1190 1195 1215 1215 1215
1190 1195 1215 1215 1215
1190 1195 1215 1215 1215
1190 1195 1215 1215 1215
1565 1555 1550 1545 1545
0.5 0.6 0.7 0.8 0.9
1830 1845 1855 1860 1850
1830 1845 1855 1860 1850
See Note 4
See Note 4
1130 See Note 4
1290 1295 1290 1280 See Note 4
1480 1475 1490 1485 1455
1830 1845 1855 1860 1850
2185 2195 2190 2180 2160
2260 2260 2255 2225 2170
See Note 4
See Note 4
See Note 4
1130 See Note 4
1290 1295 1290 1280 See Note 4
1480 1475 1490 1485 1455
1480 1475 1490 1485 1455
1480 1475 1490 1485 1455
1800 1820 1830 1835 1825
1.0
1905
1905
1215
1335
1525
1905
2215
2215
1215
1215
1215
1215
1215
1535
1.0
1840
1840
1460
1840
2100
2100
1460
1460
1460
1810