Carrier A Series Installation, Start-Up, Operating And Service And Maintenance Instructions page 17

PG80VTLA: Installation, Start-up, Operating and Service and Maintenance Instructions
Unit Size:
Clg/CF Switch settings
66135D
Clg
SW2-8 SW2-7
Switches:
Clg Default: OFF OFF
OFF OFF
OFF ON
OFF ON
ON OFF
Cooling
(SW2-8,7,6) ON OFF
ON ON
ON ON
Maximum Clg Airflow
CF Switches SW2-5 SW2-4
Low-Clg
OFF OFF
Default:
OFF OFF
OFF ON
OFF ON
Low-Cooling
ON OFF
(SW2-5,4,3)
ON OFF
ON ON
ON ON
Cont. Fan
OFF OFF
Default:
OFF OFF
OFF ON
OFF ON
Continuous
Fan ON OFF
(SW2-5,4,3)
ON OFF
ON ON
ON ON
High Heat Airflow
Heating
(SW1)
Low Heat Airflow
1.Nominal 350 CFM/ton cooling airflow is delivered with SW1-5 and SW2-2 set to OFF.
Set both SW1-5 and SW2-2 to ON for +7% airflow (nominal 370 CFM/ton).
Set SW1-5 to ON and SW2-2 to OFF for +15% airflow (nominal 400 CFM/ton).
Set SW2-2 to ON and SW1-5 to OFF for -7% airflow (nominal 325 CFM/ton).
The above adjustments in airflow are subject to motor horsepower range/capacity.
This applies to Cooling and Low-Cooling airflow, but does not affect continuous fan airflow.
2.Maximum cooling airflow is achieved when switches SW2-6, SW2-7, SW2-8 and SW1-5 are set to ON, and SW2-2 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 high-heating CFM within the operational range of ESP. Operation within the blank areas of the chart is not recommended because high-heat operation will be
above 1.0 ESP.
5.All airflows on 21" casing size furnaces are 5% less on side return only installations.
6.Side returns for 24.5" casing sizes require two sides, or side and bottom, to allow sufficient airflow at the return of the furnace.
7.Airflows over 1800 CFM require bottom return, two-side return, or bottom and side return or excessive watt draw may result. A minimum filter size of 20 x 25"(508 x 635 mm) is required.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Table 4 – Air Delivery - CFM (With Filter)* (Continued)
4
COOLING AND HEATING AIR DELIVERY - CFM (Bottom Return
(SW1-5 and SW2-2 set to OFF, except as indicated. See Notes 1 and 2.)
SW2-6 0.1 0.2
OFF 2105 2050
ON 990 885
OFF 1180 1090
ON 1355 1270
OFF 1535 1465
ON 1735 1670
OFF 2105 2050
ON 2280 2225
2
2360 2310
SW2-3
OFF 990 885
ON 800 670
OFF 990 885
ON 1180 1090
OFF 1355 1270
ON 1535 1465
OFF 1735 1670
ON 2105 2050
OFF 740 605
ON 740 605
OFF 900 775
ON 1080 980
OFF 1080 980
ON 1080 980
OFF 1080 980
ON 1080 980
3
2130 2075
3
1855 1795
External Static Pressure (ESP)
0.3 0.4 0.5
1995 1940 1880
780 665 570
995 900 815
1190 1105 1020
1395 1320 1245
1605 1535 1470
1995 1940 1880
2175 2120 2065
2265 2215 2160
780 665 570
540 410 280
780 665 570
995 900 815
1190 1105 1020
1395 1320 1245
1605 1535 1470
1995 1940 1880
470 360 255
470 360 255
650 525 400
885 785 680
885 785 680
885 785 680
885 785 680
885 785 680
2020 1970 1910
1730 1670 1605
17
5
With Filter)
0.6 0.7 0.8
1820 1765 1705
See Note 4
715 635 555
940 855 775
1165 1095 1025
1405 1335 1270
1820 1765 1705
2010 1955 1905
2115 2060 2010
See Note 4
See Note 4
See Note 4
715 635 555
940 855 775
1165 1095 1025
1405 1335 1270
1820 1765 1705
See Note 4
See Note 4
See Note 4
595 510 430
595 510 430
595 510 430
595 510 430
595 510 430
1855 1805 1745
1545 1480 1420
0.9 1.0
1650 1590
475 400
700 630
945 875
1205 1140
1650 1590
1850 1800
1960 1870
475 400
700 630
945 875
1205 1140
1650 1590
345 260
345 260
345 260
345 260
345 260
1690 1630
1360 1300