810751-UTG-A-0313
Johnson Controls Unitary Products
3
PROCEDURES:
1. Unit factory charge listed on the unit nameplate includes refrigerant for the outdoor unit, the smallest matched indoor unit, and 15 feet of interconnecting line tubing.
2. Verify the TXV and additional charge required for specific matched indoor unit in the system using the above table.
3. Add additional charge for the amount of interconnecting line tubing greater than 15 feet at the rate specified in Physical and Electrical Data Table.
4. For indoor matches requiring additional charge, the refrigerant needs to be weighed in for specific matched indoor unit and lineset length.
5. Permanently mark the unit nameplate with the total system charge. Total System Charge = Base Charge (as shipped) + charge adder for matched indoor unit +
charge adder for line set.
System Charge for Various Matched Systems
Outdoor Unit
RAC14J18
4S21(E)
RAC14J24
4S21(E)
RAC14J30
4S21(E)
RAC14J36
4S21(E)
RAC14J42
4S21(E)
RAC14J48
4S21(E)
RAC14J60
4S21(E)
Required TXV
1
,
2
4F1
4F1
4G1
4G1
4G1
4J1
4J1
Indoor Unit
3,4,5
Additional Charge, oz
RFCX18BE
0
–
–
–
–
–
–
RFCX24BE
15
16
–
–
–
–
–
RFCX30BE
15
16
13
–
–
–
–
RFCX36CE
24
23
19
15
–
–
–
RFCX42DE
–
35
30
25
17
–
–
RFCX48DE
–
–
–
24
16
11
–
RFCX60DE
–
–
–
29
22
15
13
RFCX18BP
0
–
–
–
–
–
–
RFCX24BP
–
16
–
–
–
–
–
RFCX30BP
–
–
12
–
–
–
–
RFCX36BP
–
–
19
15
–
–
–
RFCX42CP
–
–
–
25
17
–
–
RFCX48DP
–
–
–
–
16
11
–
RFCX60DP
–
–
–
–
22
15
13
FC/MC/PC18
0
–
–
–
–
–
–
FC/MC/PC32
15
16
13
–
–
–
–
FC/MC/PC35
15
16
13
–
–
–
–
FC/MC/PC37
23
22
19
15
–
–
–
FC/MC/PC43
23
22
19
15
8
–
–
FC/MC/PC48
–
34
30
25
17
9
–
FC/MC/PC60
–
–
–
24
16
11
9
FC/MC62
–
–
–
29
21
15
13
FC64
–
–
–
39
30
26
21
HD24
14
–
–
–
–
–
–
HD36
19
19
16
–
–
–
–
HD48
–
45
40
34
26
–
–
HD60
–
–
–
–
22
8
6
UC18
2
–
–
–
–
–
–
UC48
–
–
–
–
11
10
–
UC60
–
–
–
24
16
13
11
Some of the combinations shown in the above System Charge table require Advanced Main Air Circulating Fan indoor product. For approved coil
only matches, please see the “COOLING CAPACITY - Upflow, Downflow & Horizontal Furnaces and Coils” table.
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 blower Time Delay Kit S1-2FD06700224.
4. PC coils cannot be used in downflow or horizontal applications. FC coils cannot be used in horizontal applications.
5. Refer to Cooling Performance Data tables for actual system performance for specified system matches.