Carrier 48FC 08-16 Series Service And Maintenance Instructions page 7

Units with SystemVu™ controls
On units equipped with the factory-installed SystemVu controller
the Fan Speed settings are accessed through the SystemVu interface.
1. Check the job specifications for the cfm (cubic feet per
minute) and ESP (external static pressure) required.
2. Using the chart on the Fan Speed Set Up labels (see Fig. 11),
calculate the rpm from the cfm and ESP for the base unit.
3. If installing any accessories listed at the bottom of the Set
Up Label, add accessory rpm to base unit rpm in upper
portion of label.
NOTE: The Fan Speed Set Up labels are located on the High
Voltage cover in the Control Box.
4. Press any key on the SystemVu interface to activate the
display backlight and then press the MENU key.
5. Using the UP and DOWN arrow keys highlight SET-
TINGS and then press ENTER.
Calculator
RPM
3000
3250
3500
3750
4000
4250
4500
4750
5000
Field Accessories:
Economizer
NOTE(S): Values in the Field Accessories section are RPM adders.
Fig. 11 — Example of Fan Speed Set Up Labels for SystemVu™ Controls
0.2 0.4 0.6
1250 1348 1441 1528
1336 1428 1515 1598
1423 1509 1591 1670
1510 1591 1669 1744
1598 1675 1749 1820
1687 1759 1829 1898
1776 1845 1912 1977
1866 1931 1995 2057
1955 2018 2079 2138
89 89 89
6. Use the DOWN arrow key highlight the UNIT CONFIG-
URATIONS menu then press ENTER.
7. Highlight UNIT CONFIGURATIONS then press ENTER.
8. Highlight INDOOR FAN and then press ENTER.
9. Refer to the job specifications to set the following, deter-
mining the values per the rpm calculator label (see
Fig. 11). Use the UP and DOWN arrow keys and the
BACK key to set the values. Press ENTER after setting
each value to continue to the next selection.
• IDF VENT SPD
• IDF HEAT SPD
• IDF LOW COOL SPD
• IDF HIGH SPD
• IDF FREE COOL SPD
For further details see the FC/GC Series Single Package Rooftop
Units with SystemVu Controller Controls, Start-up, Operation and
Troubleshooting manual.
ESP in. wg
0.8 1.0 1.2 1.4
1610 1688 1762
1677 1753 1824
1746 1819 1888
1817 1887 1954
1890 1957 2022
1964 2029 2092
2041 2103 2163
2118 2178
2197
89 89 89 89
7
1.6 1.8 2.0
1832 1899 1963
1893 1959 2021
1955 2020 2081
2019 2082 2143
2085 2146
2153
89 89 89