5493752-CTG-F-0420
4
Johnson Controls Ducted Systems
CHARGING PROCEDURES:
1. Check the Factory Unit Charge listed on the unit nameplate to verify the refrigerant charge for the outdoor unit, the smallest matched indoor unit, and the 15 feet
of interconnecting lineset.
2. Verify the indoor metering device and additional charge required for the specific matched indoor unit in the system using the above table.
3. Add additional charge for the amount of interconnecting lineset tubing greater than 15 feet at the rate specified in Physical and Electrical Data Table.
4. For installations requiring additional charge, weigh in refrigerant for the specific matching indoor unit and actual lineset length.
5. Once the charge adders for matched indoor unit and for lineset have been weighed in, verify the system operation against the temperatures and pressures in the
Charging Chart for the outdoor unit. Locate Charging Charts on the outdoor unit and also in the Service Data Application Guide on
www.simplygettingthejobdone.com.
Follow the Subcool or Superheat charging procedure in the Installation Manual according to the type of indoor metering
device in the system, and allow ten minutes after each charge adjustment for the system operation to stabilize. Record the charge adjustment made to match the
Charging Chart.
6. Permanently stamp the unit nameplate with the TOTAL SYSTEM CHARGE defined as follows: TOTAL SYSTEM CHARGE = Base Charge (as shipped) +
charge adder for matched indoor unit + charge adder for actual lineset charge adjustments to match the Charging Chart.
SYSTEM CHARGE FOR VARIOUS MATCHED SYSTEMS
Outdoor Unit
AC19B2421S
AC19B3621S
AC19B4821S
AC19B6021S
Required TXV
1,2
BH1
BA1
BC1
BC1
Indoor Unit
3,4,5
Additional Charge, oz
AE24B
0
–
–
–
AE30B
2
–
–
–
AE36(B,C)
4
0
–
–
AE42C
–
6
–
–
AE48(C,D)
–
6
0
–
AE60C
8
8
5
0
AE60D
–
36
8
0
AVC24B
0
–
–
–
AVC30B
2
–
–
–
AVC36(B,C)
4
0
–
–
AVC42C
6
6
–
–
AVC48(C,D)
7
6
0
–
AVC60C
8
8
5
0
AVC60D
–
36
8
0
CF/CM/CU24(A,B,C)
0
–
–
–
CF/CM/CU30(A,B,C,D)
2
–
–
–
CF/CM/CU36(A,B,C,D)
4
0
–
–
CF/CM/CU42(B,C,D)
6
3
–
–
CF/CM/CU48(C,D)
7
6
0
–
CF/CM/CU60(C,D)
8
8
5
0
CF/CM64D
–
36
8
0
All of the combinations shown in the above System Charge table require Advanced Main Air Circulating Fan indoor product. “Coil Only” matches
are not available for these systems.
FOOTNOTES:
1. For applications requiring a TXV, use S1-1TVM*** series kit.
2. A TXV kit must be used with these indoor units to obtain system performance.
3. Systems matched with furnaces or air handlers not equipped with blower-off delays may require 60 second time delay.
4. CF coils cannot be used in horizontal applications.
5. Charge adders shown above do not indicate that coils are rated for every application. Refer to Performance Data Tables for actual performance for specified sys-
tem matches. Obtain certified system ratings from
www.ahridirectory.org
.